CN209398398U - Three-dimensional comprehensive reservoir hydrate sunykatuib analysis system - Google Patents

Abstract

The utility model provides a kind of three-dimensional comprehensive reservoir hydrate sunykatuib analysis system, comprising: the rectangle for filling sea bottom hydrate reservoir shale flour sand porous media simulates chamber；For measuring the parameter measurement system of porous media data in different simulated experiments；Adjust the constant temperature system of rectangle simulation chamber environment temperature in experiment；The vacuum system of clean experimental situation is provided；The gas injection system of intracavitary injection gas is simulated to the rectangle；The intracavitary liquid injection system for injecting specified liquid is simulated to rectangle；To the outlet metering system for proposing that gas-liquid is measured；The data acquisition process unit of data acquisition, analysis and result output is carried out to experimentation.The utility model can study the spatial distribution in temperature field in lanthanum chloride hydrate and decomposable process, the spatial distribution of saturation field, the fltting speed in decomposition of hydrate forward position, decomposition mechanism of hydrate etc., provide theoretical foundation for the development plan design of hydrate.

Description

Three-dimensional comprehensive reservoir hydrate sunykatuib analysis system

Technical field

The utility model relates to geology field, in particular to a kind of three-dimensional for capableing of real simulation sea bottom hydrate reservoir can Depending on simulation system.

Background technique

Since this century, the whole world all recognizes that gas hydrates are a kind of cleaning energy for substituting conventional fossil fuel Source.The whole world is it has been found that hydrate mineral reserve point is more than at 200, and with current energy-consuming trend, only the hydrate of exploitation 15% is just It is used 200 years as long as the whole world.But the stabilization Temperature-pressure Conditions of its own formation, determine the particularity of its mining method, In addition the influence with environment is need further to assess in its recovery process.Therefore, the research to hydrate exploitation at present In addition to the runin that a few countries and area carried out individual well or single well group is adopted, overwhelming majority research is also in laboratory physics The stage of simulation and numerical simulation.

Currently in order to developing and utilizing to the huge energy of this reserves, researcher proposes many methods:

1. heat injection method: being heated to decompose on equilibrium temperature by hydrate using injection hot water, steam or hot salt brine；

2. voltage drop method: below the pressure reduction of hydrate hiding to balance decomposition pressure；

3. chemical agent method: injection chemical agent, for example methanol or ethylene glycol are to change hydrate equilibrium formation condition.

The research of research thermal stimulation methane hydrate is only limitted to one-dimensional long cores clamping in experiment both at home and abroad at present Device, the simulation of second vertical well.However hydrate exploitation is no different with conventional gas and oil, is equally that a three-dimensional seepage field pressure constantly drops Low process.In order to which different exploitation sides in the synthesis, decomposition and recovery process of hydrate are grasped in more authentic and valid understanding Reservoir properties, temperature, pressure, change of production rule etc. under the conditions of formula, different exploitation well groups influence the important sensitive ginseng of pilot production Number needs the simulation of multifunction three-dimensional hydrate extracting experiment, with studied comprehensively on three dimension scale hydrate generation and Decomposition behavior.And now the field of developing lack one kind can the comprehensive processing set gas hydrates exploitation simulated experiment dress It sets, to study synthesis indoors to China's land-based area permafrost region test core, decompose gas hydrates mechanism, and to grasp land Reservoir properties, temperature, pressure, yield during the hydrate pilot production of domain under the conditions of different development schemes, different exploitation well groups The important sensitive parameter that changing rule etc. influences pilot production provides the support in terms of physical analogy.

Summary of the invention

Particularly, the utility model provides a kind of three-dimensional visible simulation system for capableing of real simulation sea bottom hydrate reservoir System.

Specifically, three-dimensional comprehensive reservoir hydrate sunykatuib analysis system provided by the utility model, comprising:

Rectangle simulates chamber, is used to fill the rectangular cavity of sea bottom hydrate reservoir shale flour sand porous media including both ends open Body is individually positioned in the upper cover plate and lower cover plate of rectangular cavities opening both ends and closing open end, and fixed cover plate respectively With the top board and lower platen of lower cover plate；Wherein, the outer diameter of upper cover plate is greater than the internal diameter of rectangular cavities and is stuck in rectangular cavity side In stepped recesses on side, the outer diameter of lower cover plate is equal to the internal diameter of rectangular cavities and is located in rectangular cavities, and top board is by upper cover Plate is limited in current location, and lower platen applies the extruding force for squeezing internal porous medium in fixation procedure to lower cover plate；Under Multiple corresponding measured holes are evenly distributed on pressing plate and lower cover plate, it is outer that two relative sides of rectangular cavities are provided with connection The delivery outlet of substance in the input hole and discharge experimentation of portion's system；

Parameter measurement system, including be mounted in each measured hole with while measuring porous media in different simulated experiments The measurement component of middle data measures pressure including being mounted in a measured hole simultaneously or dispersing to be mounted in different measured holes Bellows manograph, the temperature sensor for measuring temperature and the electrode for measuring resistance；

Constant temperature system simulates chamber in experiment to adjust the rectangle by covering the insulating box outside rectangle simulation chamber Environment temperature；

Vacuum system is simulated chamber to the rectangle by vacuum pump and is vacuumized, to provide clean experimental situation；

Gas injection system simulates intracavitary injection gas to the rectangle by gas compressor with synthesized hydrate or survey Measure gas permeability of the hydrate reservoir in different mining states；

Liquid injection system is pumped to the rectangle by constant speed and constant pressure and simulates the specified liquid of intracavitary injection, for current The Test Liquid Permeability of Core of porous media synthesized hydrate or the current porous media of analysis；

Metering system is exported, self-relieving pressure is adjusted when being included in the rectangle simulation chamber output pressure beyond standard Device, back pressure container, backpressure pump carry out the gas-liquid separator of gas-liquid separation to the hydrate of output, receive gas after separating and lead to The gas tank of overcurrent meter metering, weighs the gravity measure device of liquid after separation；

Data acquisition process unit, the control system including having data processing software, while controlling experimentation Data acquisition, analysis and result output are realized to different experimentations.

In the embodiment of the utility model, it is evenly distributed on the upper cover plate and is connected to in rectangular cavities Mounting hole is equipped with high-pressure glass in mounting hole, is respectively arranged with fixed clamping piece, institute in the axial ends of high-pressure glass State the annular ring and the snap ring axially projecting by annular ring plane side that clamping piece includes plane, the internal diameter and high-pressure glass of snap ring Outer diameter it is identical, the annular table protruded to the center of circle is provided on the hole wall of mounting hole, two clamping pieces are respectively fitted over by snap ring After the axial ends of high-pressure glass using on annular ring the bolt of through-hole fix with annular table；In the excircle of high-pressure glass It is provided with sealing tetrafluoro washer between annular table, the buffering for squeezing sealing is provided between clamping piece and the upper cover plate Washer；Upper cover plate position corresponding with mounting hole is provided with inverted conical shape peep hole.

In an embodiment of the utility model, the side edge that the upper cover plate is contacted with the stepped recesses is installed Have a seal trim strip, the side that the lower cover plate is contacted with the rectangular cavities be provided with accommodate seal trim strip inside contract step, The housing screw of top tight sealing press strip is separately installed on the top board and the lower platen.

In an embodiment of the utility model, the upper cover plate is the transparent high pressure resistant glass plate of monolith, described Top board is the rectangle frame of rectangle frame or Intermediate Gray reinforcing rod, the surrounding of rectangle frame fastening glass panels in a manner of casing pressure.

In an embodiment of the utility model, the lower cover plate is under the extruding of the lower platen to porous media Apply the confining pressure of simulated formation pressure, the moving distance of the lower cover plate is 0~20mm.

In an embodiment of the utility model, the input hole and delivery outlet of the rectangular cavities and porous media it Between be provided with the filter of isolation silt, while being provided on the side of an input hole side outlet within the cavity by the liquid of output Body is dispersed into the diversion trench of face output, and the diversion trench includes the annular groove and connection shaft that rectangular spacer is distributed on the end face To the radial slot of through-hole and each annular groove.

In an embodiment of the utility model, the bottom water chamber of Rong Shui, bottom water chamber are provided in the lower cover plate One to four water inlet being connected to the lower platen is provided in the one side contacted with the lower platen, inside rectangular cavities Being uniformly distributed on one side for contact is provided with multiple water outlets.

In an embodiment of the utility model, the rectangle simulation chamber is mounted on angular adjustment apparatus, described Angular adjustment apparatus includes the fixed column that horizontal symmetrical is fixed on on the outside of two opposite faces of the rectangular cavities, wherein one solid The end of fixed column is mounted in a support support on the ground by the bearing block with bearing, the bearing block with it is described Support is arc sliding contact；Another is connect by bearing with worm gear elevating mechanism, and worm gear elevating mechanism is fixed by control Column realizes that rectangular cavities realize the lifting rotated horizontally in vertical height.

In an embodiment of the utility model, the measured hole on the lower cover plate is that three sections of internal diameters are diminishing The step structure and the smallest one end of internal diameter is close to rectangular cavities；It is surveyed on measured hole internal diameter and the lower cover plate on the lower platen Metering-orifice internal diameter is maximum identical, and the quantity of the measured hole is 25~30.

In an embodiment of the utility model, pressure sensor, temperature sensor and electrode are along the rectangular cavity Intracorporal Liquid Flow direction is sequentially distributed；One bellows manograph, a temperature sensor or 1 are installed in one measured hole Multiple bellows manographs, temperature sensor and electrode are installed simultaneously in a electrode or a measured hole.

In an embodiment of the utility model, the parameter measurement system further includes fixing seat, margining tablet and anti- Press-off, fixing seat sealing is fixed in the measured hole and is internally provided with central passage, the margining tablet be it is flexible or Metal disk and be provided with it is multiple axially penetrate through jack, be horizontally arranged in the central passage of fixing seat, the Anti-slip cover is logical The external opening end that external screw thread is screwed in central passage is crossed, front end holds out against the margining tablet；The bellows manograph, temperature sensing Device and electrode protrude into the rectangular cavities after passing through the jack on Anti-slip cover and margining tablet, the Anti-slip cover and the fixing seat It contacts and is provided with sealing element on the excircle of one end, the other end is provided with the anti-turn bolt for preventing signal cable from loosening, described anti- Turn bolt is radially provided with through-hole, and corresponding limiting holes are provided on the Anti-slip cover, after anti-turn bolt goes to position, Through-hole is screwed by fixing bolt and limiting holes avoid anti-turn bolt from rotating.

In an embodiment of the utility model, the margining tablet is mounted on the centre of measured hole on the lower cover plate At step structure, the margining tablet is equipped with multiple and each margining tablet and is spaced or contacts between each other installation.

In an embodiment of the utility model, the bellows manograph includes pressure-measuring pipe, is covered outside pressure-measuring pipe Pressure guiding pipe, positioned at impulse tube end and sealing accommodates the bellows separation sleeve of pressure-measuring pipe end, and injection is anti-in Xiang Suoshu pressure guiding pipe Freeze the injection device of liquid；The end outer surface of the pressure guiding pipe is provided with multiple tracks radial convex loop, and the bellows separation sleeve is one end The flexible boot of opening, the inner surface in open end are provided with concave ring corresponding with bulge loop, the bellows separation sleeve using concave ring with It links together after bulge loop engaging on the pressure guiding pipe, in the internal guard space for forming receiving anti-icing fluid.

In an embodiment of the utility model, the temperature sensor at the same measured hole is at least arranged Have 4, and be located at the lower cover plate to the rectangular cavities horizontal centre cutting line 1/4,2/4,3/4 and it is horizontal At central cross-section line.

In an embodiment of the utility model, chamber is simulated to accommodate rectangle inside the insulating box of the constant temperature system Keeping warmth space, the air-heater for realizing internal hot air convection is provided in the inside opposing sides of insulating box, in the side of insulating box The refrigeration system for being used to adjust the temperature inside the box of cooling coil composition is provided in wall, the inner surface of insulating box is equipped with stainless steel Mirror board, outer surface are equipped with the insulating layer of glass fibre formation, transparent windows and temperature control plane are provided on side wall Plate is provided with the headlamp for keeping brightness in case at transparent windows.

In an embodiment of the utility model, the gas injection system includes the air pressure for generating pressed gas Contracting machine, to the gas booster pump that the gas that the air compressor generates is pressurized, the low pressure of low-pressure gas after storage pressurization Storage tank, the high pressure storage tank of high pressure gas after storage pressurization, selects low pressure storage tank or high pressure storage tank to the square according to requirement of experiment The pressure-regulating valve of input specified pressure in shape cavity, control pure gas output flow size and control gas-liquid mixture flow Flow controller；Gas damping device is installed in the gas circuit before pressure-regulating valve, the gas damping device be equipped with The pressure vessel of liquid.

In an embodiment of the utility model, the flow controller includes the adjusting for being connected in parallel output gas The adjusting flow container of gas tank and output liquid, controls to adjust gas tank and adjusting flow container is exported to the control of gas-liquid amount in the rectangular cavities Valve processed provides the storage tank of gas and liquid with adjusting flow container for adjusting gas tank respectively and provides the pressure pump of pressure, detects pressure Sensor, control the PLC unit of each component operation；

Gas chamber A and liquid chamber A are partitioned by sliding plunger inside the adjusting gas tank, the inside for adjusting flow container is by sliding Piston is partitioned into gas chamber B and liquid chamber B, and gas chamber A and liquid chamber A pass through pipeline respectively and be connected in parallel with pressure-regulating valve；Gas chamber B and liquid Room B passes through pipeline respectively and is connected in parallel with pressure pump, and sensor obtains pressure everywhere and exports to PLC unit, PLC unit root Make to input the intracorporal gas-liquid maintenance stabilization of the rectangular cavity according to the variation adjustment pressure-regulating valve of pressure value in the rectangular cavities.

In an embodiment of the utility model, the pressure-regulating valve includes valve body, is bolted on valve Valve deck on body, be provided in valve deck the big one end in one end it is small through shape funnel-form plunger shaft and the big one end of opening is close to valve Body is equipped with the infundibulate piston of same shape in plunger shaft, is provided with coaxial double through channel on the axial line of piston, The plunger shaft small end exit of valve deck is provided with the bonnet in channel, is movably installed in the channel of bonnet and passes through with the double of piston The corresponding sealing ring of channel outlet is worn, the pressure channel mutually passed to channel to sealing ring pressure is provided in the side of bonnet, The overflow ducts communicated with plunger shaft are provided on valve deck, be provided at the valve body position opposite with plunger shaft respectively with it is described The accommodating chamber that gas tank is connected to the adjusting flow container is adjusted, the opening diameter of accommodating chamber is less than the diameter at adjacent pistons end, is holding Receive the intracavitary briquetting for being provided with movable closing open end, the piston side opposite with accommodating chamber is provided with diaphragm seal.

In an embodiment of the utility model, the control valve includes valve body, valve rod, hand screw, in valve body It is inside provided with infusion channel and is cylindrical and is provided with radially protruding at one end with the valve rod mounting groove of infusion channel, valve rod is connected to Flange collar, be provided with activity pinch valve in open end of the one end of hand screw by being threaded onto valve rod mounting groove and at the end The groove of bar flange collar, the flange collar of valve rod is caught in groove and the other end is located in infusion channel and can completely enclose infusion channel, The outer diameter that sealing ring and sealing ring are cased on valve rod is greater than the outer diameter of groove；

The infusion channel includes the feed pathway being parallel to each other and apocenosis passage, and vertical connection feed pathway and row The closed channel of liquid one end of the channel, valve rod are inserted into closed channel.

In an embodiment of the utility model, the structure that activity clamps the flange collar is as follows: in the groove It is screwed with installation set by screw thread, the inside of installation set is holding tank corresponding with valve rod flange collar one end shape, in the circle of installation set The bayonet being laterally caught in for flange collar one end is provided on week；Or

The side of groove is provided with bayonet corresponding with valve rod flange collar one end shape, and by connecting at bolt and bayonet To close the closing block of bayonet.

In an embodiment of the utility model, the constant speed and constant pressure pump of the liquid injection system is that twin-tub constant speed is permanent Press pump, the twin-tub constant speed and constant pressure pump realize single cylinder independently working, twin-tub independently operation and twin-tub linkage by two cylinders Operation, using distilled water or kerosene as driving medium output, realized during output the constant pressure to driving medium, constant current and Tracking PLC control；

The liquid injection system further includes the pressure being mounted between the twin-tub constant speed and constant pressure pump and the rectangular cavities Power regulating piston, the hydraulic adjustment piston include the hollow body of both ends open, are passed through at the both ends of the hollow body outer Screw thread is screwed with upper cover and lower cover respectively, and the inside of the two-port in the hollow body is separately installed with seal plug, in institute It states seal plug and is provided with the connected unit outwardly protruded on one side far from the hollow body, in the upper cover and the lower lid It is provided with the through-hole passed through for the connected unit, is provided in the connected unit and axially penetrates through hole；

Being equipped in the inside of hollow body can axially move and by hollow body internal insulation at two individual cavities Partition；One of cavity is connected to twin-tub constant speed and constant pressure pump, another cavity is connected to the negative pressure sample cavity, with The solution for meeting hydrate generation, distilled water or coal in another cavity are filled in the cavity of the negative pressure sample cavity connection It is injected in the negative pressure sample cavity under the promotion of oil.

In an embodiment of the utility model, it is provided in the rectangular cavities and realizes the measurement of stable state heated filament Steady state measurement device, the steady state measurement device include the platinum product heat for being inserted into the rectangular cavities and being located at horizontal middle Silk, cover the sheath outside platinum product heated filament, by sheath and platinum product heated filament both ends be fixed on the rectangular cavities both ends end socket and Fixing seat；

The fixing seat is internally provided with axially extending bore, by the external screw thread and the rectangular cavities side wall of one end Mounting hole connection, the seal joint of extrusion deformation is equipped in mounting hole, is screwed on the external screw thread of the other end of fixing seat Connector is tensed, the adjusting nut that adjusting tenses connector degree of tension is installed close to one end of fixing seat tensing connector, tension connects Fluting is provided in the end of the head other end carves jam-packed ring, and is limited in the tightening tensed on connector for jam-packed ring is carved Pressure cap.

It further include being heated to the intracorporal porous media of the rectangular cavity in an embodiment of the utility model The heating system of environment temperature when changing hydrate generation to simulate, the heating system includes providing steam and hot water simultaneously Explosion-proof type steam generator, steam generator include the cartridge heater for being internally provided with heating chamber, and the barrel of cartridge heater is double-deck empty Core structure, centre are hot water space, and annular is provided in heating chamber or polygon directly be connected to adding for hot water space in barrel Having heaters is arranged in the lower section of heating tube in heat pipe, and top is provided with the steam pipe for the steam discharge generated in heating tube, The cold water exchange area for adjusting output temperature is provided in the output channel of steam pipe；

And the temp probe of detection temperature everywhere, the pressure probe of input and output pressure is detected, to hot water space and cold The water inlet pipe that water coke slurry area supplies water exports the outlet pipe of steam and/or hot water, and controls predetermined steam or hot water according to instruction The PLC control unit of output, exchange area are connected to by the pipeline with control valve with hot water space.

It further include that through-hole by device for storing liquid in the rectangular cavities enters in an embodiment of the utility model Realize that annular circulation flows the influence and dirt with sunykatuib analysis drilling fluid to hydrate reservoir conductive features using drilling fluid at mouthful The drilling-fluid circulation system of dye；The device for storing liquid includes the fluid reservoir for storing well liquid, controls the circulating pump that well liquid circulates, To the temperature controller that circulation well liquid is heated, the regulator of pressure, is arranged in the rectangular cavities one when adjusting well liquid circulation The simulation well head annulus structure at end；

It is connect after the delivery outlet connection circulating pump of the fluid reservoir with the entrance of simulation well head annulus structure, simulates well head ring The outlet of hollow structure is connect after connecting with regulator with the input port of fluid reservoir, and the temperature controller is individually connect with fluid reservoir, The output end of the circulating pump is connect by branch pipe with liquid storage pipe.

The utility model can study the space of the spatial distribution in temperature field in lanthanum chloride hydrate and decomposable process, saturation field Distribution, the fltting speed in decomposition of hydrate forward position, the decomposition mechanism of hydrate etc.；Analysis decompression is with hydrate under EOR Conditions The gas production of aqueous vapor migration and hydrate reservoir in layer；It is single side form analog horizontal wells bottom by replacement upper cover plate Water ridge coning process when water layer is formed and development mechanism, the changing rule of water breakthrough time and recovery ratio with studying water ridge；Simulate water Close object reservoir in aqueous vapor migration rule and reasonable hydrate gas production, for hydrate development plan design provide theory according to According to.

It is seeped by temperature field, pressure field, the spatial distribution of saturation field, stratum in research lanthanum chloride hydrate and decomposable process The changing rule of saturating rate, decomposition of hydrate forward position fltting speed, and control change producing well bottom pressure, heat injection temperature, A series of creation datas such as different well pattern modes, different well spacing densities, for the synthesis and decomposition for effectively grasping and studying hydrate Mechanism provides most intuitive reference.

Detailed description of the invention

Fig. 1 is the sunykatuib analysis system connection schematic diagram of one embodiment of the utility model；

Fig. 2 is the rectangle simulation cavity configuration schematic diagram of one embodiment of the utility model；

Fig. 3 is the gas injection apparatus connection schematic diagram of one embodiment of the utility model；

Fig. 4 is the fluid infusion apparatus connection schematic diagram of one embodiment of the utility model；

Fig. 5 is the hydraulic adjustment piston structural schematic diagram of one embodiment of the utility model；

Fig. 6 is the outlet metering system connection schematic diagram of one embodiment of the utility model；

Fig. 7 is the upper cover plate of one embodiment of the utility model and the structural schematic diagram of top board；

Fig. 8 is the top board structural schematic diagram of one embodiment of the utility model；

Fig. 9 is the guide trough structure schematic diagram of one embodiment of the utility model；

Figure 10 is the measurement component scheme of installation of one embodiment of the utility model；

Figure 11 is the bellows manograph structural schematic diagram of one embodiment of the utility model；

Figure 12 is the structural schematic diagram of the flow controller of one embodiment of the utility model；

Figure 13 is the pressure-regulating valve structural schematic diagram of one embodiment of the utility model；

Figure 14 is the structural schematic diagram of the hand control valve of one embodiment of the utility model；

Figure 15 is the steady state measurement device mounting structure schematic diagram of one embodiment of the utility model；

Figure 16 is the drilling-fluid circulation system connection schematic diagram of one embodiment of the utility model.

Specific embodiment

In the following description, the analog form of each system and operating process all use existing method, each internal system And each pipe is no longer all shown unless otherwise indicated by the piping connection with control valve one by one between rectangular cavities Road and control valve, and be only illustrated with the course of work or experimental procedure.

As shown in Figure 1, the three-dimensional comprehensive reservoir hydrate sunykatuib analysis system that one embodiment of the utility model provides System generally includes: the rectangle simulation chamber 1 as simulation main body, carries out the parameter measurement system 3 of experimentation DATA REASONING, The constant temperature system 2 for controlling simulated environment temperature, extracts the vacuum system of air, is injected separately into the gas injection system of gas and liquid System 4 and liquid injection system 5, the outlet metering system 6 of separation and metering discharge gas-liquid, analyze experimentation and result Data acquisition process unit 7.

As shown in Fig. 2, rectangle simulation chamber 1 includes that both ends open is porous for filling sea bottom hydrate reservoir shale flour sand The rectangular cavities 101 of medium, activity are placed on the opening both ends of rectangular cavities 101 while the upper cover plate 102 of closing open end under Cover board 104, and the top board 103 and lower platen 105 of fixed cover plate 102 and lower cover plate 104 respectively.

The monnolithic case of rectangle simulation chamber 1 can be rectangular or rectangle, and individually 101 shape of rectangular cavities is then long Cube structure, internal sample space are similarly rectangular shape；Upper cover plate 102 and lower cover plate 104, top board 103 and pushing Plate 105 can be corresponding with the shape of 101 mounting surface of rectangular cavities respectively.

Wherein, upper cover plate 102 provides the access panel of observation experiment process as one, and outer diameter is greater than rectangular cavities 101 Internal diameter but be less than the outer diameters of rectangular cavities 101, upper cover plate can be accommodated by being provided on the corresponding installation side of rectangular cavities 101 102 stepped recesses 106, upper cover plate 102 are at least not less than the edge of the side after being placed in stepped recesses 106.Lower cover plate 104 outer diameter is equal to the internal diameter of rectangular cavities 101, can move after installation inside rectangular cavities 101 to squeeze sample.

Upper cover plate 102 is limited in current location by top board 103, and lower platen 105 in fixation procedure to lower cover plate 104 Apply the extruding force for squeezing internal porous medium, which is equal to the current formation pressure that simulated experiment requires, lower cover plate 104 Itself plays the role of piston；After filling up porous media in rectangular cavities 101, lower cover plate 104 is under the extruding of lower platen 105 The moving distance of relatively porous medium is 0~20mm.

Multiple corresponding measured holes 107 are evenly distributed on lower platen 104 and lower cover plate 105, measured hole 107 provides The position of installation measurement component, the quantity and distribution mode of measured hole 107 can be as far as possible under the structure for not influencing rectangular cavities 101 Then more settings are installed corresponding measurement component in corresponding measured hole 107 according to different requirement of experiment, are not used Measured hole 107 then can be with temporary enclosed；The observation structure that cooperation upper cover plate 102 is observed is provided on top board 103.Top board 104 and lower platen 105 can pass through the sides of bolt and rectangular cavities 101 and be formed and be fixedly mounted, improve anti-pressure ability.

Upper cover plate 102 can be high voltage bearing transparent panel, such as high-pressure glass in itself, pass through the observation on top board 104 Structure can be directly or by intuitive variation of 101 inner sample of observation of use instrument rectangular cavities in different experiments.Upper cover plate 102 is also It can be the structure of only local setting transparent material.

Two relative sides of rectangular cavities 101 are provided with the input hole that connection external system inputs for different medium 108 and discharge experimentation in substance delivery outlet 109.

For the sealing for reinforcing upper cover plate 102 and lower cover plate 104 and 101 contact position of rectangular cavities, can in upper cover plate 102 and The side edge that stepped recesses 106 contact installs seal trim strip, carries out closure sealing to seam between the two, while can be in lower cover The side setting receiving seal trim strip that plate 104 is contacted with rectangular cavities 101 inside contracts step 110, and inside contracting step 110 can be down The right angle step being cut on 104 side of cover board.Seal trim strip is around the installation of the surrounding of upper cover plate 102 and lower cover plate 104, simultaneously To avoid seal trim strip mobile, can be installed respectively at position corresponding with seal trim strip on top board 103 and lower platen 105 Housing screw 111 enters corresponding seam by tightening housing screw 111 in 105 fixation procedure of top board 103 and lower platen Gap squeezes seal trim strip.

The size of rectangle simulation chamber 101 in present embodiment is 500mm × 500mm × 100mm, and wherein thickness is adjustable. Maximum working pressure 25MPa, design pressure 30MPa.Operating temperature: -15~50 DEG C；It is whole to use 2205 two-phase alloys stainless steels Material is process, material mechanical property with higher, while the corrosion resistance that material has had.

Following purposes can reach by the cooperation that each system and rectangle simulate chamber in present embodiment:

Study spatial distribution, the spatial distribution of saturation field, hydrate in temperature field in lanthanum chloride hydrate and decomposable process Decompose fltting speed, the decomposition mechanism of hydrate etc. in forward position；

Change the creation datas such as producing well bottom pressure, heat injection temperature, Optimal Development parameter by control；

Pass through the production performance feature of hydrate under the conditions of the different well pattern modes of comparison, well spacing density, optimized well pattern exploitation Scheme；

It is single side form by replacement top board, water ridge coning process when dummy level well exploitation bottom aquifer can be used to, Water ridge is studied to be formed and development mechanism, the changing rule of water breakthrough time and recovery ratio.

As shown in figure 3, the parameter measurement system 3 includes being mounted in each measured hole 107 to measure porous media in difference The measurement component of data in simulated experiment, the specific component that measures may include the bellows manograph 306 for measuring pressure, measurement temperature The temperature sensor 307 of degree and the electrode 305 of measurement resistance；Bellows manograph 306 therein can prevent from freezing under low temperature.Capsule Formula manograph 306, temperature sensor 307 and electrode 305 can be combined with each other during installation, can be same in a measured hole 107 When installation three or installation multiple one of them or a measured holes 107 in one in three is only installed.Specific measurement Component can also be not limited to above-mentioned three kinds, can be according to the corresponding measuring piece of specific experimental selection.All measurement components are all It is connect with data acquisition process unit 7, to control experimentation and analysis experimental result at any time.

The constant temperature system 2 carries out temperature adjusting using air bath, to provide the thermostat temperature during simulated experiment, mainly It is realized by being cooled down to rectangle simulation chamber 1 and being heated up, also offer low temperature simulating hydrate forms environment.The temperature of insulating box Degree can be controlled in -15~60 DEG C, precision ± 0.5 DEG C.

Existing product or customized can be used in the insulating box, but its basic structure needs to meet as described below: internal heat preservation Space can at least accommodate rectangle simulation chamber 1, and the heat for realizing internal hot air convection is provided in the inside opposing sides of insulating box Blower, the heat source of air-heater can be heating wire, or the heat directly generated using other systems, such as the steaming in heating system Vapour.Simultaneously to adjust internal temperature, the refrigeration system being made of cooling coil, refrigeration system are additionally provided in the side wall of insulating box System generates cold air by freezing liquid, is voluntarily controlled by data acquisition process unit 7 according to the determining temperature range of experiment.

The inner surface of insulating box is equipped with stainless steel mirror board, can reflect heat and keep interior humidity balance, while conveniently Situation in case is observed, outer gallbladder uses A3 steel plate plastic-spraying, and outer surface is equipped with the insulating layer of ultra-fine fibre glass formation to avoid not Necessary energy loss, is provided with transparent windows and temperature control panel on side wall, and guarantor is provided at transparent windows Hold the headlamp of brightness in case.

In addition, insulating box is also equipped with large screen touch panel, directly formulation formula, while showing as display run curve Display screen.It is connect by RS-485 communication interface with data acquisition process unit 7, realizes remote software set temperature, monitoring examination It tests process and executes the functions such as automatic switching.

The vacuum system is simulated rectangle by vacuum pump and is vacuumized inside chamber 1, to provide clean experimental situation. Vacuum system is used not as permanent system, and vacuum pump lashup is had pipeline before vacuumizing, after vacuumizing, then It disconnects.

As shown in figure 3, the gas injection system 4, which is simulated by air compressor 401 to rectangle, injects gas to close in chamber 1 At hydrate, gas permeability of the hydrate reservoir in different mining states is then measured, such as passes through the injection single-phase first of isothermal Alkane gas and the gas flow of precise measurement outlet, and can measure gas permeability according to Darcy's law.

Concrete composition includes the air compressor 401 for generating pressed gas, is carried out to the gas that air compressor 401 generates The gas booster pump 402 of pressurization, the low pressure storage tank 403 of low-pressure gas after storage pressurization, the high pressure of high pressure gas after storage pressurization Storage tank 404 selects low pressure storage tank 403 or high pressure storage tank 404 to input specified pressure into rectangle simulation chamber 1 according to requirement of experiment Pressure-regulating valve 405, control pure gas output flow size and control gas-liquid mixture flow flow controller 406；? Gas damping device 407 is also equipped in gas circuit before pressure-regulating valve 405, to export the gas for having certain humidity, gas Body damping device 407 can be the pressure vessel equipped with one class I liquid I of distilled water.The wherein liquid that gas booster pump 402 uses For natural gas.

Above equipment can be installed by the way that a mobile model mounting bracket is unified, form an independent inflatable being moved easily Injected system only needs to be connected to corresponding pipeline when in use.

Air compressor 401 in this programme selects the compressor of a model GCS50, and design pressure is 1.0MPa, flow 0.465m3/min, air compressor 401 can also be used in the cleaning scavenging of entire pipe-line system.The gas increases Press pump 402 can be selected a SITEC gas-gas inflator, model GBD60, pressure ratio 60:1, maximum outlet pressure 498Bar, most Big flow 40L/min.Low pressure storage tank 403 is mainly used for storing the pressurized air of air compressor, needs to meet following condition: Volume 0.1m³, operating pressure 0.8MPa, design pressure 1MPa.High pressure storage tank 404 needs to meet as follows: volume 2000mL, most Big operating pressure 50MPa.Pressure regulator valve 405 is in addition to including manual pressure regulating valve, and there are also corresponding pressure indicators, is mainly used for increase High pressure gas (natural gas) after pressure is adjusted to required operating pressure.Wherein manual pressure regulating valve maximum inlet pressure is 50MPa, Outlet pressure is adjustable between 0~40MPa.Flow controller 406 uses Blang gram high-pressure flowmeter, fixed for pure gas 0~1000ml/min of range of flow, maximum working pressure (MWP) 40MPa are quantitatively injected in amount injection, and band communication interface can be with number Communication connection is realized according to acquisition process unit 7.

As shown in figure 4, the liquid injection system 5, which is simulated in chamber 1 by constant speed and constant pressure pump 501 to rectangle, injects specified liquid Body, the Test Liquid Permeability of Core for current porous media synthesized hydrate or the current porous media of analysis；The perseverance of liquid injection system 1 Fast constant pressure pump 501 is pumped using HAS-200HSB type twin-tub constant speed and constant pressure, also conduct while realizing that displacing medium quantitatively injects The power source that rectangle simulates chamber uses, itself has pressure protection and position bound defencive function, specific parameter as follows: work Make pressure 50MPa, 0.01~20mL/min of flow velocity, pump head material uses 316L, which is configured at communication port and data acquisition Unit connection is managed, two cylinder can realize single cylinder independently working, twin-tub independently operation and twin-tub linkage operation.Specifically to steam Distilled water or kerosene realize constant pressure, constant current and the tracking PLC control to driving medium as driving medium output during output System.

Three hydraulic adjustment pistons 502 have been installed in parallel between twin-tub constant speed and constant pressure pump 501 and rectangle simulation chamber 1, have been pressed The volume of power regulating piston 502 is 2000mL, operating pressure 50MPa, material 316L.Hydraulic adjustment piston 502 is as injection The isolation of liquid and displacing fluid and energy storage buffer and transmission.Smoothing processing is done in cylinder inner surface, to reduce inner wall frictional force.

As shown in figure 5, every hydraulic adjustment piston 502 includes the hollow body 5021 of both ends open, in hollow body 5021 both ends pass through the upper cover 5022 and lower cover 5023 that external screw thread is screwed respectively, and in the two-port of hollow body 5021 Portion is separately installed with seal plug 5024, outwardly protrudes in seal plug 5024 far from being provided on one side for hollow body 5021 Connected unit 5025 is provided with the through-hole 5026 passed through for connected unit 5025, in connected unit in upper cover 5022 and lower cover 5023 It is provided on 5025 and axially penetrates through hole 5027；Being equipped in the inside of hollow body 5021 can axially move and by hollow appearance 5021 internal insulation of device at two individual cavities partition 5028；One of cavity is connected to twin-tub constant speed and constant pressure pump 501, separately One cavity is connected to rectangle simulation chamber 1, and the solution of hydrate generation is filled in the cavity being connected to rectangle simulation chamber 1, another It is distilled water or kerosene in a cavity, distilled water or kerosene push partition 5028 to move under the pressure of twin-tub constant speed and constant pressure pump 501 It is dynamic, it will be in the solution injection rectangle simulation chamber 1 in another cavity.

As shown in fig. 6, outlet metering system 6 is self-relieving when being included in rectangle simulation 1 output pressure of chamber beyond standard Loaded type pressurized control pressure regulator 601, back pressure container 602, backpressure pump 603 carry out gas-liquid separation to the hydrate of output Gas-liquid separator 604, receive gas and the gas tank 606 measured by flowmeter 605 after separation, weigh liquid after separation Gravity measure device 607；When the outlet pressure of rectangle simulation chamber 1 reaches the control pressure at 601 top of pressure regulator, pressure is adjusted Device 601 automatically opens pressure release, it is ensured that outlet pressure is constant.The connection structure is provided with four sets, with the different simulated experiment of correspondence.

Wherein, the volume of gas-liquid separator 605 is at least 400mL, and pressure resistance meets 2MPa；Gravity measure device 607 is by electronics day Flat composition, maximum range 2200g, precision reach 0.01g.Flowmeter 604 on gas tank 607 is wet flow indicator, range For 5000ml/min, precision reaches 0.2%, and design has the decoder of a ten thousandth, is furnished with and data acquisition process unit 7 connects The communication port connect.

The data acquisition process unit 7 includes the control system with data processing software, in the same of control experimentation When data acquisition, analysis and result, which export, to be realized to different experimentation, control system can be the tool such as PC machine, industrial personal computer The equipment of standby data processing and analytic function comprising receive and the data collecting card of change data, operation data capture card The compositions such as data acquisition software, the data processing system for controlling whole experiment process.

Wherein, data collecting card is mainly used for acquiring the measurement of bellows manograph 306, temperature sensor 307, electrode 305 Signal, and it is transferred to data acquisition software, input port is that 8 tunnels are differential；Input type is mA, and 4~20mA of input range is adopted Sample rate 15 times per second, resolution ratio is 16, bandwidth 15.75Hz, accuracy ± 0.02%.

Data acquisition software is the maincenter of whole system, guarantees the measuring accuracy of each system, and realizes each system It is intelligent.The data of all acquisitions are recorded with database form, program according to the basic parameter of input and experiment acquisition content into Row record, initial data are stored in Microsoft Excel, and user can recall data by Excel program and functional module Processing, and can be according to requiring to automatically generate laboratory report.

In present embodiment, rectangle simulation chamber 1, parameter measurement system 3 and data acquisition process unit 7 constitute basic reality Frame is tested, other each systems pass through corresponding pipeline simultaneously and are connected to rectangle simulation chamber 1, according to different requirement of experiment by people Work or data acquisition process unit 7 carry out the control of corresponding system, to realize different simulation processes, are simulating some specific mistake Cheng Shi, other systems needed not participate in are isolated by corresponding control valve.

Rectangle simulation chamber 1 itself needs to meet seal request, while exporting metering system 6, constant temperature system 2, vacuum system As standing equipment, for meeting the different required pressure and temperature environmental requirements of simulation system.

Together by each analog machine integration single at present, simulating chamber by basic equipment and rectangle can for present embodiment The experimental situation on basis is provided for different simulated experiments, it is real simultaneously or separately can to realize and control different simulations with a set of equipment It tests, facilitates the integration and comparison of data, while can guarantee the uniqueness of experiment condition, reduce experimental error.

Present embodiment can measure the permeability of different porous medias by changing the outfit different type deposit, pass through routine Analysis method the various data in each simulation process are analyzed and are summarized, to obtain selection reservoir in different simulations realities All data informations in testing provide believable foundation for practical exploitation.The gas of chamber 1 is simulated into rectangle by accurately controlling And liquid injection rate, while the gas and amount of liquid of accurate measurement rectangle simulation chamber outlet, it can calculate in porous media hole Air water saturation degree.By in the generation situation and heat injection recovery process of different location hydrate in monitoring rectangle simulation chamber 1 The decomposition situation of hydrate, can analyze the variation of temperature, pressure curve in porous media in experimentation, and according to gas phase with The fine difference of temperature determines the generation and decomposition of hydrate in porous media, to show that natural gas is hydrated in different medium The P-T of object is balanced and decomposition condition.

Electrode 305 detects the resistivity value of different zones by saturation degree electrical property measuring point, according to resistivity and saturation degree Between relation value calculate and detect the saturation distribution situations of different zones.Resistance is that methane hydrate is formed and decomposed good Good instruction parameter, system resistance quickly increases when gas hydrate synthesis, and resistance strongly reduces when decomposition of hydrate.

The decomposable process of present embodiment simulation porous media hydrate sample can realize that dynamic characteristic measurement and static state are special Sign measurement, wherein behavioral characteristics measurement can be under the decompression of control hydrate sample or heat injection decomposition condition, to decomposition of hydrate mistake Journey, the dynamic change of the gas and water permeability, Gas And Water Relative Permeability, thermal coefficient of the different piece of the sample of hydrate containing deposit Change is measured and is studied.And static characteristic measurement can be under the conditions of control hydrate sample be Undec, to synthesis containing heavy The gas and water permeability and Gas And Water Relative Permeability and thermal coefficient of the different piece of product object hydrate sample carry out survey in situ Amount.

The whole system of present embodiment can be in situ to different types of sea bottom hydrate deposited samples analog synthesis, really Determine the porosity of hydrate sample in synthesis process, air-water-hydrate concentration and its distribution characteristics, and full to different gas and waters And degree, the permeability and thermal coefficient of different type deposit carry out in situ measurement.

The utility model changes producing well bottom pressure, heat injection temperature Dengfeng creation data, Optimal Development ginseng by control Number；Pass through the production performance feature of hydrate under the conditions of the different well pattern modes of comparison, different well spacing densities, optimized well pattern exploitation side Case；Seepage flow performance containing hydrate formation can be tested, grasp hydrate formation water penetration rate and saturation degree relationship and water Close influence of the object decomposition to in-place permeability.Mud filtrate invasion can be simulated under different condition to the shadow of hydrate formation conductive characteristic It rings, provides foundation for hydrate formation resistivity logging from now on.Aqueous vapor under research decompression and EOR Conditions in hydrate formation The gas production of migration and hydrate reservoir can carry out indoor water horizontal well water output mechanism and control water, water shutoff technology research, see Water ridge coning process when examining horizontal wells bottom water reservoir, research water ridge are formed and development mechanism, water breakthrough time and recovery ratio Changing rule.

Below in aforementioned system specific structure and optional simulated experiment scheme make an explanation, while to increasable The system for realizing corresponding function is illustrated.

As shown in fig. 7, in an embodiment of the utility model, for convenience of top board 103 and upper cover plate 102 is passed through The experimentation in rectangle simulation chamber 1 is observed, the structure of upper cover plate 102 can be is uniformly distributed multiple and rectangle in its plate face The mounting hole 1021 being connected in cavity 101, installs transparent cylindrical pressure glass 1022, often in each mounting hole 1021 A high-pressure glass 1022 is clamped in mounting hole 1022 by the way that the clamping piece 1023 at axially both ends is arranged, clamping piece 1023 be ring structure, including plate shaped annular ring 1024 and the snap ring axially projecting by 1024 plane side of annular ring 1025, the internal diameter of annular ring 1024 is less than the outer diameter of outer diameter but outer diameter greater than high-pressure glass 1022 of high-pressure glass 1022, snap ring 1025 internal diameter is identical as the outer diameter of high-pressure glass 1022 but is less than or equal to the internal diameter of mounting hole 1021, in mounting hole 1021 The annular table 1026 protruded to center of circle direction is provided on hole wall, two clamping pieces 1023 are respectively fitted over height by snap ring 1025 It is placed in mounting hole 1021 after pressing the axial ends of glass 1022, two annular rings 1024 are located at the part outside snap ring 1025 point The both ends of annular table 1026 are not ridden over, recycle the bolt 1027 of through-hole and annular table 1026 on annular ring 1024 fixed, High-pressure glass 1022 is clamped in mounting hole 1021 by two clamping pieces 1023 at this time.

In the inverted conical shape peep hole 1031 of the settable same diameter in the position corresponding with mounting hole 1021 of upper cover plate 102, The structure makes top board 103 while realizing fixed to upper cover plate 102, does not influence the observing effect of upper cover plate 102.Using upper Cover board 102 and the isolated mode of top board 103 can be convenient installation and maintenance high-pressure glass 1022.Certainly, implement in others In mode, in the case where meeting pressure and sealing, the upper cover plate 102 of pore structure can also be cancelled, and directly by high-pressure glass Using same structure setting on top board 103.

It, can be in the excircle and annular of high-pressure glass 1022 to prevent from leaking between high-pressure glass 1022 and mounting hole 1021 Multiple sealing tetrafluoro washers 1028 are set between platform 1026, while flexibility is set between clamping piece 1023 and upper cover plate 102 Squeeze the buffer gasket 1029 of sealing.

As shown in figure 8, in an embodiment of the utility model, which can be transparent resistance to of monolith The mounting means of high-pressure glass plate, such structure opposed cylindrical high-pressure glass 1022 is simpler.Under this structure, upper pressure Corresponding peep hole 1031 can be set on plate 103 come penetrate glass plate carry out porous media experimentation observation, in addition, on Pressing plate 103 can also be that four sides are provided with the rectangle frame 1032 of pressing structure, and pressing structure can be the frame with interior right angle Four sides of glass plate are pressed and are fixed on current mounting position by dog-ear by frame structure, and the middle part of rectangle frame 1032 is as sight Examine hole.

Further, the reinforcing rod 1033 of connection corresponding sides can also be set in the middle vacancy of rectangle frame 1032, to improve The intensity of entire rectangle frame 1032, while do not influenced again to internal observation.Reinforcing rod 1033 itself can be made movable disassembly Structure, remove in normal pressure, be bolted again when with pressure.

To prevent porous media from moving with the flowing of gas-liquid, the input connecting with each system is set in rectangular cavities 101 The medial surface in hole 108, and setting output gas-liquid delivery outlet 109 medial surface be provided with by porous media be spaced apart filter 112, filter 112 can be collectively constituted by metal mesh and strainer, and the mesh number of filter 112 itself does not influence the channel of gas-liquid, But it can prevent porous media from passing through.

As shown in figure 9, to enable the liquid entered in the form of face while entering the face contacted with porous media, in square Shape cavity 101, which is arranged on input hole 108 and the side of a side outlet within the cavity, is arranged that the liquid of output is dispersed into face is defeated Diversion trench 113 out, diversion trench 113 are that rectangular spacer is distributed in the annular groove 1131 of indent on the end face, annular groove 1131 it Between by multiple radial slots 1132 be connected to.The air-liquid that the structure can be such that input hole 108 is discharged is introduced into the spilling of diversion trench 113 Adjacent entire porous media face is entered back into afterwards, so as to accurately simulate actual ground environment,

The also settable bottom water chamber 114 for holding water, bottom water chamber 114 are that an area is in rectangular cavities 101 in lower cover plate The hollow cavity of portion's area 4/5 or so is provided with one to four in the one side contacted with lower platen 105 and connects with lower platen 105 Logical water inlet is provided with multiple water outlets with being uniformly distributed on one side for rectangular cavities interior contact.114 analog of bottom water chamber Layer hydraulic pressure, the structure using porous distribution water outlet can make entire rectangular cavities keep pressure balance.114 pairs of bottom water chamber entrance Fluid generates buffering, and absorption impact energy, which is kept in balance, pushes ahead, when rectangle simulation chamber 1 goes to horizontal position, bottom water chamber 114 can be used as side water layer, to be used to provide side Fluid Dynamics.

To carry out simulated experiment under different angle, can install one can arbitrarily adjust rectangle simulation chamber placement angle Angular adjustment apparatus 115, the angular adjustment apparatus 115 include horizontal symmetrical be fixed on outside 101 two opposite faces of rectangular cavities Fixed column 1151 on side, wherein the end of a fixed column 1151 is mounted on a branch by the bearing block 1152 with bearing In the support 1153 of support on the ground, bearing block 1152 is contacted with support 1153 for arc sliding；Another fixed column 1151 is logical It crosses bearing to connect with worm gear elevating mechanism 1154, worm gear elevating mechanism 1154 realizes rectangular cavities by control fixed column 1151 101 rotate horizontally and the lifting in vertical height.

In the present solution, worm gear elevating mechanism 1154 uses existing Worm gear feed screw elevator, worm reduction gear is generally comprised And elevating screw drives worm gear to realize and slows down, worm gear center is internal thread structure, quite by worm-drive using worm screw Match in the nut and elevating screw of elevating screw, lifting speed is equal to worm screw input speed divided by the deceleration of worm and gear Than then multiplied by the screw pitch of screw rod.It has high-precision elevating function, while not influencing the radial rotation of rectangle simulation chamber again Turn；In use, rectangle simulates chamber 1 using 1154 one end of worm gear elevating mechanism as drive end, and the other end is made using arc sliding For Partner, any inclination angle can be gone to around axis, is then locked again.Simultaneously also certain angle can be tilted by worm gear elevating mechanism 1154 Degree so that rectangle simulates 1 analog of chamber from vertically to horizontal various situations, and can anticline certain angle, greatly expand and grind Study carefully range.

As shown in Figure 10, in an embodiment of the utility model, for convenience of sealing element, the lower cover plate 104 is installed On measured hole be arranged to three sections of diminishing step structures of internal diameter, and the smallest one end of internal diameter is close to rectangular cavities 101；Under 107 internal diameter of measured hole on pressing plate 105 and 107 internal diameter of measured hole on lower cover plate 104 are maximum identical, measured hole 107 it is specific Quantity can be set 25~30.The interlude of measured hole 107 is used to install and limit sealing element on lower cover plate 104, and diameter is most Segment passes through for cable, and such structure can provide corresponding installation space using diameter largest segment, utilizes interlude shape At seal section, minimal segment can then reduce leakage.

In an embodiment of the utility model, for convenience of fixation measuring component, it is equipped in measured hole 107 solid Reservation 301, margining tablet 302 and Anti-slip cover 303, the peace measured hole 107 on lower cover plate 104 are circular through-hole, fixing seat 301 Be internally provided with central passage, sealing is fixed in measured hole 107, and specific fixed form can be welding or screw thread Twist-on.

Margining tablet 302 be flexible disk or metal gasket and be provided with it is multiple axially penetrate through jack, axially penetrate through jack use In passing through the cable of each measurement component, it is horizontally arranged in central passage, margining tablet 302 can make according to the depth of bearing With one or more, each margining tablet 302 can be overlapped mutually installation, form flexible fastening to the cable passed through, while facilitating adjustment The measurement position of corresponding measuring part.

Anti-slip cover 303 is equally the tubular-shaped structures that a centre has the through-hole passed through for cable, is twisted by external screw thread On the internal screw thread at the external opening end of central passage, the front end of Anti-slip cover 303 can hold out against margining tablet 302 by the depth tightened To prevent margining tablet 302 from moving axially.

Bellows manograph 306, temperature sensor 307 and measuring electrode 305 pass through on Anti-slip cover 303 and margining tablet 302 It is protruded into after through-hole in rectangular cavities 101, for the pressure-resistant performance for improving junction, Anti-slip cover 303 and fixing seat 301 contact one end Excircle on settable sealing element 308；The anti-turn bolt for preventing signal line from loosening is provided in the other end of Anti-slip cover 304, which is radially provided with through-hole, and corresponding limiting holes are provided on Anti-slip cover 303, when anti-rotation spiral shell After bolt 304 goes to position, through-hole and limiting holes can be screwed by fixing bolt to avoid anti-turn bolt 303 from rotating relative to Anti-slip cover.

As shown in figure 11, the bellows manograph 306 in present embodiment includes pressure-measuring pipe 3061, is covered outside pressure-measuring pipe 3061 The pressure guiding pipe 3062 in portion, positioned at 3062 end of pressure guiding pipe and sealing accommodates the bellows separation sleeve 3063 of 3061 end of pressure-measuring pipe, to The injection device of injection anti-icing fluid in pressure guiding pipe 3062；Pressure-measuring pipe 3061 transmits the pressure of received insert division porous media To external pressure sensor, pressure sensor passes through the digital display secondary instrument provided for oneself and is directly shown or be transferred to data collection At processing unit 7.For pressure guiding pipe 3062 for protecting pressure-measuring pipe 3061, internal anti-icing fluid can prevent pressure-measuring pipe 3061 porous Sharp freezing at medium.Bellows separation sleeve 3063 can form the compression chamber for being full of anti-icing fluid in the end of pressure-measuring pipe 3061 Body 3064, with the pressure of accurate transfer receiving to pressure-measuring pipe 3061.

The end outer surface of pressure guiding pipe 3062 is provided with multiple tracks radial convex loop 3065, bellows separation sleeve 3063 is one end The flexible boot of opening, the inner surface in open end are provided with concave ring 3066 corresponding with bulge loop 3065,3063 benefit of bellows separation sleeve It, can be in internal shape while preventing from falling off with being fastened togather after concave ring 3066 and 3065 inserting of bulge loop on pressure guiding pipe 3062 At the compression cavity 3064 for accommodating anti-icing fluid.

For measure different depth temperature, the temperature sensor 307 at same measured hole 107 at least provided with 4, and Be located at lower cover plate 104 to rectangular cavities 101 horizontal centre cutting line 1/4,2/4,3/4 and horizontal centre cutting line Place.Equally, bellows separation sleeve 1063 and electrode 305 can also be installed in the same manner, porous so as to measure Pressure difference, the temperature difference and resistivity value difference in medium axial direction.And same position then can measure the pressure difference of different depth, the temperature difference and Resistivity value difference.

Gas hydrates have high resistivity (about 50 times or more of water resistance rate), and the resistivity on stratum is about 0~15000 Ω .m.In the present system, the resistivity measurement range of electrode 305 is 0~15000 Ω .m, precision 1%.For more The distribution of accurate measurement hydrate, electrode 305 are such as arranged in the way of 13 × 3 by the way of evenly dispersed arrangement.

Above structure can reduce the quantity of arrangement measured hole 107 while enhance the intensity of lower platen 105, reduce leakage Point；Can be when receiving pressure be bigger using the structure of multi-layer combined type margining tablet 302, margining tablet 302 is bonded with temperature point to be got over Sufficiently, it is ensured that the reliability of measuring point sealing.

As shown in figure 12, in an embodiment of the utility model, the flow controller 406 of gas injection system 4 Adjusting flow container 4062 including being connected in parallel the adjusting gas tank 4061 and output liquid of output gas, controls to adjust gas tank 4061 The pressure-regulating valve 4063 of intracavitary air-liquid amount is simulated, to rectangle with the adjusting output of flow container 4062 to adjust gas tank 4061 and adjusting Flow container 4062 provides the storage tank 4064 of gas and liquid respectively and provides the pressure pump 4065 of pressure, detects the sensor of pressure, Control the PLC unit of each component operation.

Wherein, adjust gas tank 4061 and adjust flow container 4062 structure it is essentially identical, both only at work one it is defeated Gas out, an output liquid.It adjusts and gas chamber A and liquid chamber A is partitioned by sliding plunger inside gas tank 4061, adjust flow container 4062 inside is partitioned into gas chamber B and liquid chamber B by sliding plunger, and gas chamber A and liquid chamber A pass through pipeline and pressure-regulating valve respectively 4063 are connected in parallel；Gas chamber B and liquid chamber B passes through pipeline respectively and pressure pump 4065 is connected in parallel to obtain input pressure, sensing Device obtains pressure everywhere and exports to PLC unit, and PLC unit adjusts pressure according to the variation that rectangle simulates pressure value in chamber 1 Regulating valve 4063 makes input rectangle simulate intracavitary air-liquid amount maintenance stabilization, makes the input of tolerance or liquid measure or gas-liquid mixed amount Always a standard is maintained.

With the raising of injection pressure can be brought in high-pressure fluid injection rectangle simulation chamber 1, for guarantee injection rectangle simulation High-pressure fluid in chamber 1 is constant flow, and the gas-liquid volume ratio of high-pressure fluid is fixed value: and flow controller 406 is then It may be implemented under different pressure and temps and control output quantity holding stabilization.In present embodiment, flow controller 406 can basis Different experiments need to install it is multiple, adjust purpose include gas-air mixer and gas-liquid mixing.

After in high-pressure fluid injection rectangle simulation chamber 1 internal pressure is increased, originally intracorporal gas-liquid volume is flowed in injection Than that may change, flow controller 406 can improve pressure and injection rate at this time, make the gas being injected into rectangle simulation chamber 1 Liquor ratio maintains the state of expected gas liquid ratio always, that is, realizes constant injection flow.

If the inlet pressure that rectangle simulates chamber 1 is P1, the pressure P2 that pressure pump 4065 provides, rectangle simulation chamber is actually entered Gas flow in 1 is Q1, and the flow of real-time change is Q2, and flow controller 406 then has:

P1Q1=P2Q2

P2 is definite value in formula, when P1 variation, to guarantee the constant flow it is necessary to constantly change Q2 of Q1.The present apparatus passes through Pressure sensor acquires the value of pressure P1 in real time, the output pressure of pressure pump 4065 is controlled by data acquisition processing system 7, with P1 Variation and constantly change adjust gas tank 4061 and adjust flow container 4062 discharge capacity Q2, it is ensured that air-liquid body flow Q1's is constant defeated Enter to rectangle simulation chamber 1, guarantees constant gas-liquid input ratio.

The course of work is described as follows: gas chamber A and liquid chamber A is connected respectively with back-pressure valve 4063 to export corresponding gas and liquid It is hydraulically full in body, the combined amount exported by back-pressure valve 4063 according to both corresponding pressure change control, gas chamber B and liquid chamber B, Push piston press gas chamber A and liquid chamber A to export corresponding gas flow and amount of liquid, pressure pump under the pressure of pressure pump 4065 4065 promotion pressure size is determined that the value is with rectangle by data acquisition process unit 7 according to pressure sensor feedback signal Pressure change in simulation chamber 1 is gradually increased.

As shown in figure 13, a kind of structure of pressure-regulating valve 405 is disclosed, and the sunykatuib analysis system of the utility model is needing The pressure-regulating valve 405 of the structure all can be used when adjusting output pressure, 405 structure of pressure-regulating valve is as follows: including valve body 4051, the valve deck 4052 being bolted on valve body 4051 is provided with that the big one end in one end is small to be run through in valve deck 4052 The shape funnel-form plunger shaft 4054 and big one end of opening is movably installed with same shape in valve body 4051, plunger shaft 4054 Infundibulate piston 4055, is provided with coaxial double through channel 4056 on the axial line of piston 4055, in double through channel 4056 A channel directly through axle center, another channel is centered around the channel circumference with ring-type, in the plunger shaft of valve deck 4052 4054 small end exits are provided with the bonnet 4053 in channel, are movably installed in the channel of bonnet 4053 and piston 4055 Double through channel 4056 export corresponding sealing ring 4057, sealing ring 4057 can close two channels simultaneously；In bonnet 4053 side is provided with the pressure channel 4058 for mutually passing to channel and pressing to sealing ring 4057, be provided on valve deck 4052 with The overflow ducts 4059 that plunger shaft 4054 communicates are provided with branch pipe at the position opposite with plunger shaft 4054 of valve body 4051 The accommodating chamber 4050 being connected to respectively with adjusting gas tank 4061 and adjusting flow container 4062, the opening diameter of accommodating chamber 4050 are less than adjacent The diameter of piston end is provided with the briquetting of movable closing open end, piston 4055 and 4050 phase of accommodating chamber in accommodating chamber 4050 Pair side be provided with diaphragm seal.

After the air-liquid for adjusting gas tank 4061 and adjusting flow container 4062 enters accommodating chamber 4050, respectively by double through channel 4056 export simultaneously push sealing ring 4057, sealing ring 4057 is applied with the fixation pressure inputted by pressure channel 4058, when gas, When the pressure of liquid measure is less than the fixation pressure, sealing ring 4057 persistently closes double through channel 4056, when the pressure of air-liquid amount When greater than the fixation pressure, then sealing ring 4057 is opened by bonnet 4053 and exports corresponding air-liquid.Therefore, solid by adjusting The size of constant-pressure is the output quantity of controllable air-liquid.Overflow ducts 4059 then can be used as the pressure release passage of air-liquid.

Further, sealing ring 4057 can use the structure being provided separately to close off corresponding channel, and pressure is logical Road 4058 is arranged two and respectively corresponds a sealing ring 4057, which can apply different pressures by pressure channel 4058 Power further increases mixed-precision to adjust the different output quantity of air-liquid.

As shown in figure 14, in an embodiment of the utility model, the control valve that is used in aforementioned each embodiment It can be the hand control valve 9 such as flowering structure, which generally comprises the valve body 91 as circulation passage, closes stream The valve rod 92 of circulation passage, the mobile hand screw 93 of control valve rod 92.Be provided in valve body 91 infusion channel 94 be connected to it is defeated The valve rod mounting groove 95 in liquid channel 94,92 shape of valve rod is identical as the cross sectional shape of infusion channel 94, can be cylindrical or rectangle. One end of valve rod 92 is provided with the flange collar 921 of radially protruding or the structure of any protrusion valve stem body, such as convex block, nose bar.Manually One end of screw rod 93 is screwed in the open end of valve rod mounting groove 95 by external screw thread, and the end is provided with clamping valve rod flange collar The lifting of 921 groove 931, valve rod 92 can drive flange collar 921 to realize by hand screw 93, between the two either fixed connect Binding structure, be also possible to that 921 relative mounting location of flange collar can rotate mutually is movably fastened structure.

When work, the flange collar 921 of valve rod 92 is caught in groove 931, and the other end is located at infusion channel according to switch state In 94 or it is located at outside infusion channel 94, infusion channel 94 can be completely enclosed when being located in infusion channel 94.Hand screw 93 is logical Band ovable valve stem 92 is gone up and down after crossing screw thread lifting, realizes the switch of infusion channel 94.It, can be on valve rod 92 to improve leakproofness Radial circumference be set with sealing ring 96, the outer diameter of the sealing ring 96 is identical as the internal diameter of valve rod mounting groove 95 and at least more than flange collar 921 outer diameter, sealing ring 96 can prevent liquid or gas from being leaked by valve rod mounting groove 95, while can prevent gas or liquid Into the groove 931 of installation flange collar 921.

For the switching effect for improving valve rod 92, which may include that the feed pathway being parallel to each other and drain are logical Road, and the closed channel of vertical connection feed pathway and apocenosis passage one end, valve rod 92 are inserted into closed channel.The structure can To increase the closing length of valve rod 92, and then improve sealing effect.

The structure of 93 activity clamping flange collar 931 of hand screw is as follows in present embodiment: in the groove of hand screw 93 A movable installation set (not shown) is screwed with by screw thread in 931, the inside of the installation set is the flange collar with valve rod 92 The corresponding holding tank of 921 one end shapes, provided circumferentially about in installation set have the bayonet being laterally caught in for 921 one end of flange collar；? 921 one end of flange collar of valve rod 92 is caught in installation set by bayonet when use, then installation set is screwed into groove 931；The knot Structure can reduce the production process to manual opening stem 93, facilitate installation.

In addition, in another embodiment, the structure of 93 activity clamping flange collar 931 of hand screw may also is that recessed Bayonet corresponding with 921 one end shape of valve rod flange collar is arranged in the side of slot 931, installs enclosed card by bolt activity at bayonet The closing block of mouth.The structure can carry out the processing of groove 931 from the side of manual valve body 93, be carried out using movable closing block The valve rod 92 that closing then can prevent and limit after installation moves radially.The outer surface of closing block can make and manual opening stem The external screw thread of 93 one.

In an embodiment of the utility model, it is provided in rectangular cavities 101 and realizes the measurement of stable state heated filament Steady state measurement device 116, as shown in figure 15, the steady state measurement device 116 include being inserted into rectangular cavities 101 and being located at level The platinum product heated filament 1161 at middle part covers the sheath 1162 outside platinum product heated filament 1161, by sheath 1162 and 1161 liang of platinum product heated filament End is fixed on the fixing seat 1163 at 101 both ends of rectangular cavities.

After platinum product heated filament 1061 is powered, heat can be transmitted from porous media center to two sides, sheath 1162 can prevent outer The liquid or porous media in portion are directly contacted with platinum product heated filament 1161, through the cloth at porous media different location, different depth The temperature sensor 307 set can measure heating rate, and then test the thermal coefficient of hydrate.

1163 structure of specific fixing seat is as follows: generally cylindrical structure, is internally provided with axially extending bore, both ends setting Have external screw thread, connect by the external screw thread of one end with the mounting hole on 101 side wall of rectangular cavities, be equipped in mounting hole by It deforms after extruding to enhance the seal joint 1164 of sealing effect, tension is screwed on the external screw thread of 1163 other end of fixing seat Connector 1165 is equipped with the tune that adjusting tenses 1165 degree of tension of connector close to one end of fixing seat 1163 tensing connector 1165 Save nut 1166, tense be provided with fluting in the end of 1165 other end of connector carves jam-packed ring 1167, and will carve it is crowded Tight ring 1167 is limited in the tightening pressure cap 1168 tensed on connector 1165.

According to the volume of rectangular cavities 101, can spacing side by side multiple steady state measurement devices 116 are set, pass through and tense connector The elasticity of 1165 adjustable platinum product heated filaments 1161, while will not influence the fixed effect of tightening pressure cap 1168.

It further include simulating intracavitary porous media to rectangle and being heated in an embodiment of the utility model Simulation changes the heating system 10 of environment temperature when hydrate generates, which includes while providing steam and hot water Explosion-proof type steam generator, steam generator include the cartridge heater for being internally provided with heating chamber, and the barrel of cartridge heater is double-deck empty Core structure, centre are hot water space, and annular is provided in heating chamber or polygon directly be connected to adding for hot water space in barrel Having heaters is arranged in the lower section of heating tube in heat pipe, and top is provided with the steam pipe for the steam discharge generated in heating tube, The cold water exchange area for adjusting output temperature is provided in the output channel of steam pipe；Cold water exchange area is adjusted by water at low temperature and is exported Vapor (steam) temperature, water at low temperature here both can be with the water within the scope of some, and such as 10 DEG C of water be also possible to enter the heat before heating tube Matter reduces later period warm-up time to absorb corresponding heat in advance.

It is also equipped with the temp probe for detecting temperature everywhere, the pressure probe of input and output pressure is detected, to hot water space The water inlet pipe to supply water with cold water exchange area, exports the outlet pipe of steam and/or hot water, and according to instruction control predetermined steam or The PLC control unit of hot water output, exchange area are connected to by the pipeline with control valve with hot water space.

It as shown in figure 16, further include the input hole in rectangle simulation chamber 1 in an embodiment of the utility model Realize that annular circulation flows the influence with sunykatuib analysis drilling fluid to hydrate reservoir conductive features using drilling fluid in 108 inlet And the drilling-fluid circulation system 8 of pollution；The drilling-fluid circulation system 8 includes the fluid reservoir 801 of storage well liquid, and control drilling fluid follows The dynamic circulating pump 802 of circulation, to the temperature controller 803 that circulating fluid is heated, the pressure regulation of pressure when adjusting circulation of drilling fluid The simulation well head annulus structure 805 of rectangle simulation 1 one end of chamber is arranged in device 804；The delivery outlet of fluid reservoir 801 connects circulation It is connect after pump 802 with the entrance of simulation well head annulus structure 805, simulates outlet and the regulator of well head annulus structure 805 It is connect after 804 connections with the input port of fluid reservoir 801, temperature controller 803 is individually connect with fluid reservoir 801, the output of circulating pump 802 End is connect by branch pipe with liquid storage pipe 801.

Fluid reservoir 801 uses detachable structure with cover, volume 1000mL, maximum working pressure (MWP) 25MPa, temperature controller 803 temperature modification scope is at -50 DEG C of room temperature or so.The injection maximum pressure 25MPa of circulating pump 802, range of flow control exist 0.5~10mL/min.

In addition, the three-dimensional comprehensive reservoir hydrate sunykatuib analysis system of the utility model is additionally provided with use in terms of electricity consumption Electrical ground protection, power-off protecting circuit, overtemperature prote, overpressure protection and electronic security circuit protection.

Wherein electricity consumption ground protection and power-off protecting circuit can avoid injury of the incoming call to equipment and human body after having a power failure suddenly, Every power-off must restart general supply, and instrument can be just powered on, it is ensured that personal safety.

Overtemperature prote has carried out split-phase processing to some high-power instruments of heating, reaches in a basic balance, holding circuit system System is stablized, with prevent in circuit a certain phase power it is excessive cause it is uneven between phase and phase.The PID control system designed by system System can then be alarmed when real time temperature is more than the measuring temperature upper limit or lower limit, be mentioned to offline in thermostatic control system set temperature Wake up operator note that and when system temperature beyond setting spend when, system can be automatically stopped current operation immediately, be then powered off add Thermoelectric generator is simultaneously alarmed.

Overpressure protection processing mode includes the high pressure material that selection meets national " GB/T 1220-2007 stainless steel bar " standard Material makes each device；And press member be designed in strict accordance with national " GB150.1~150.4-2011 pressure vessel " standard, Processing and inspection.Pressure test includes hydraulic test and gas pressure test, the design pressure that hydraulic test pressure is 1.25 times, air pressure The design pressure that test pressure is 1.15 times；Container and key pressure point are provided with the inlet pressure sensor of corresponding range, real When monitor each pressure-measuring-point.It can be needed to set maximum pressure value according to test, when pressure-measuring-point is close to full scale or instrument pole When limiting index, dynamical element stops working, software interface prompt and audible alarm.Safety valve is housed at the pump of each system, works as pressure Power overstep the extreme limit pressure when releasing pressure automatically.Safety valve is opened after pressure reaches specified value, and is sounded an alarm.

Electronic security circuit protection using electro connecting pressure gauge carry out overpressure protection, electro connecting pressure gauge by measuring system, Instruction system, magnetic help electric contact set, shell, the adjustment composition such as device and terminal box (connector assembly).General electro connecting pressure gauge It is the positive/negative pressure for measuring the gas for not playing corrosiveness to copper and copper alloy, liquid medium, stainless steel electric contact pressure Table does not play the gas of corrosiveness, the positive/negative pressure of liquid medium and the hair when pressure reaches predetermined value to stainless steel for measuring Signal out connects control circuit, achievees the purpose that the alarm of automatic control.Electro connecting pressure gauge is based on the spring in measuring system Pipe forces the end of bourdon tube to generate corresponding flexible deformation one and is displaced, pass through by pull rod under the pressure effect of measured medium The transmission of gear drive simultaneously gives amplification, is indicated on scale by the instruction (together with contact) on fixed gear by by measured value Out.At the same time, when its instantaneous of (dynamic circuit breaker or dynamic circuit connector) that be in contact with the contact (upper limit or lower limit) on setting pointer, cause Circuit in control system is turned off or connects, to achieve the purpose that automatically control and transmit alarm.

In an embodiment of the utility model, a kind of aforementioned three-dimensional comprehensive reservoir hydrate sunykatuib analysis is provided The experimental method of system, generally includes the following steps:

Step 100, all systems are simulated into chamber by pipeline and control valve and rectangle and realizes that mutually indepedent control connects, by Moist porous media sample is loaded in any open end that rectangle simulates chamber, simulates intracavitary gas-liquid input side in rectangle and outlet side is put Setting does not influence metal mesh and filter paper that aqueous vapor passes through but prevents sample from passing through, installed after filling upper cover plate and top board or Lower cover plate and lower platen regulate the placement angle of rectangle simulation chamber according to requirement of experiment using angular adjustment apparatus；

Here relevant device connection either connect all systems for different simulation effects, then root simultaneously According to needing to open corresponding system；It is also possible to the system for only installing corresponding demand.Each control is needed to pay attention to when connecting each system The closing and sealing of valve.

Step 200, each measurement component in Connecting quantity measuring system is simulated chamber to rectangle by vacuum system and is taken out After vacuum plus then ring pressure, environment temperature needed for starting constant temperature system simulated experiment start corresponding system according to experiment purpose It is tested to simulate actual formation environment, wherein experiment purpose includes:

One, the note of natural gas or mixed gas or different phase gas is carried out to current sample by gas injection system Enter, the permeability of current sample when analyzing different flow under different pressures；

Two, it is realized by liquid injection system and salt water is injected to current sample, when analyzing different flow under different pressures The permeability of current sample；

Three, liquid is injected, the gas of certain pressure is reinjected, reduces experimental temperature, realizes lanthanum chloride hydrate；

Four, by reducing system pressure with simulating hydrate decomposition process；

Five, in the permeability and Gas And Water Relative Permeability of the different phase measurement reservoir of decomposition of hydrate；

Six, circulate the simulation well head annulus structure of drilling fluid and rectangular cavities by the well liquid circulatory system, Measuring sample simultaneously is influenced state by drilling fluid infiltration；

Seven, injection hot gas or hot water are carried out to sample by heating system, to measure hydrate under heat injection mining method Decomposing state；

Each experiment purpose in the step is not needed to realize simultaneously, can be carried out respectively according to experiment purpose.

Step 300, in each experimentation, the pressure difference number of sample is measured by the bellows manograph in measurement component According to passing through electrode measurement sample by temperature change of the hydrate in generation and decomposition in temperature sensor measurement sample Resistivity value, above-mentioned measurement include the measurement to different depth in different location on sample levels direction and vertical direction；

Step 400, each to adjust by the pressure that control rectangle cavity exports by compression system in above-mentioned experimentation Displacement pressure size needed for experimentation, data acquisition process unit controls the processing step of each experimentation, data are adopted Collection and output analysis result.

In abovementioned steps, porous media sample different zones can be obtained by the relation value between resistivity and saturation degree Saturation distribution situation；Current sea bottom hydrate reservoir is calculated by inlet and outlet gas flowmeter and fluid flow evaluation The single-phase and multiphase permeability of shale flour sand porous media.

This method can realize different simulated experiment processes by different system in combination or independently, pass through the inhomogeneity that changes the outfit Type deposit measures the permeabilities of different porous medias, by existing analysis method to the various data in each simulation process It is analyzed and is summarized, to obtain all data informations of the selection reservoir in different simulated experiments, provided for practical exploitation Believable foundation.The gas and liquid injection rate of chamber are simulated into rectangle by accurately controlling, while accurate measurement rectangle is simulated The gas and amount of liquid of chamber outlet, can calculate the intrapore air water saturation degree of porous media.By in monitoring negative pressure sample cavity The decomposition situation of hydrate, can analyze more in experimentation in the generation situation and heat injection recovery process of different location hydrate The variation of temperature, pressure curve in the medium of hole, and hydration is determined according to the fine difference of temperature in gas phase and porous media The generation and decomposition of object, to obtain the P-T balance and decomposition condition of gas hydrates in different medium.

So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein A exemplary embodiment still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical new The range of type is understood that and regards as to cover all such other variations or modifications.

Claims (24)

1. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system characterized by comprising

Rectangle simulates chamber, is used to fill the rectangular cavities of sea bottom hydrate reservoir shale flour sand porous media including both ends open, It is individually positioned in the upper cover plate and lower cover plate of rectangular cavities opening both ends and closing open end, and difference fixed cover plate is under The top board and lower platen of cover board；Wherein, the outer diameter of upper cover plate is greater than the internal diameter of rectangular cavities and is stuck on rectangular cavities side Stepped recesses in, the outer diameter of lower cover plate is equal to the internal diameter of rectangular cavities and is located in rectangular cavities, and top board limits upper cover plate For system in current location, lower platen applies the extruding force for squeezing internal porous medium in fixation procedure to lower cover plate；In lower platen With multiple corresponding measured holes are evenly distributed on lower cover plate, rectangular cavities two relative sides be provided with connection outside be The delivery outlet of substance in the input hole and discharge experimentation of system；

Parameter measurement system, including be mounted in each measured hole with while measuring porous media number in different simulated experiments According to measurement component, including being mounted in a measured hole simultaneously or dispersion is mounted on and measures the bellows of pressure in different measured holes Manograph, the temperature sensor for measuring temperature and the electrode for measuring resistance；

Constant temperature system adjusts the rectangle by covering the insulating box outside rectangle simulation chamber and simulates ring of the chamber in experiment when Border temperature；

Vacuum system is simulated chamber to the rectangle by vacuum pump and is vacuumized, to provide clean experimental situation；

Gas injection system simulates intracavitary injection gas to the rectangle by gas compressor with synthesized hydrate or measurement water Close gas permeability of the object reservoir in different mining states；

Liquid injection system is pumped to the rectangle by constant speed and constant pressure and simulates the specified liquid of intracavitary injection, for current porous The Test Liquid Permeability of Core of medium synthesized hydrate or the current porous media of analysis；

Metering system is exported, self-relieving pressure regulator when being included in the rectangle simulation chamber output pressure beyond standard, Back pressure container, backpressure pump carry out the gas-liquid separator of gas-liquid separation to the hydrate of output, receive gas after separating and pass through stream The gas tank of meter metering, weighs the gravity measure device of liquid after separation；

Data acquisition process unit, the control system including having data processing software, to not while controlling experimentation Same experimentation realizes data acquisition, analysis and result output.

2. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

It is evenly distributed with the mounting hole being connected to in rectangular cavities on the upper cover plate, high-pressure glass is installed in mounting hole, Fixed clamping piece is respectively arranged in the axial ends of high-pressure glass, and the clamping piece includes the annular ring of plane and by annular The axially projecting snap ring of plane side is enclosed, the internal diameter of snap ring and the outer diameter of high-pressure glass are identical, are provided on the hole wall of mounting hole The annular table protruded to the center of circle, two clamping pieces are respectively fitted over after the axial ends of high-pressure glass using across annular by snap ring The bolt of through-hole is fixed with annular table on circle；Sealing phenyl tetrafluoride pad is provided between the excircle and annular table of high-pressure glass Circle is provided with the buffer gasket for squeezing sealing between clamping piece and the upper cover plate；It is corresponding with mounting hole in the upper cover plate Position be provided with inverted conical shape peep hole.

3. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 2, which is characterized in that

The side edge that the upper cover plate is contacted with the stepped recesses is equipped with seal trim strip, the lower cover plate and the rectangular cavity The side of body contact, which is provided with, to be accommodated seal trim strip and inside contracts step, is separately installed on the top board and the lower platen The housing screw of top tight sealing press strip.

4. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The upper cover plate is the transparent high pressure resistant glass plate of monolith, and the top board is the rectangle of rectangle frame or Intermediate Gray reinforcing rod Frame, the surrounding of rectangle frame fastening glass panels in a manner of casing pressure.

5. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The lower cover plate applies the confining pressure of simulated formation pressure, the lower cover plate under the extruding of the lower platen to porous media Moving distance be 0~20mm.

6. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

It is provided with the filter that silt is isolated between the input hole and delivery outlet and porous media of the rectangular cavities, is inputted simultaneously The diversion trench that the liquid of output is dispersed into face output, the diversion trench are provided on the side of a hole side outlet within the cavity The annular groove on the end face, and the radial slot of connection axially extending bore and each annular groove are distributed in including rectangular spacer.

7. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The bottom water chamber of Rong Shui is provided in the lower cover plate, be provided in the one side that bottom water chamber is contacted with the lower platen one to Four water inlets being connected to the lower platen are provided with multiple water outlets with being uniformly distributed on one side for rectangular cavities interior contact Mouthful.

8. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The rectangle simulation chamber is mounted on angular adjustment apparatus, and the angular adjustment apparatus includes described in horizontal symmetrical is fixed on Fixed column on the outside of two opposite faces of rectangular cavities, wherein the end of a fixed column is installed by the bearing block with bearing In the support of a support on the ground, the bearing block is contacted with the support for arc sliding；Another passes through bearing It is connect with worm gear elevating mechanism, worm gear elevating mechanism realizes horizontal rotation and vertical height by control fixed column realization rectangular cavities Lifting on degree.

9. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

Measured hole on the lower cover plate is the diminishing step structure of three sections of internal diameters and the smallest one end of internal diameter close to rectangle Cavity；Measured hole internal diameter on the lower platen and measured hole internal diameter on the lower cover plate are maximum identical, the measured hole Quantity is 25~30.

10. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 9, which is characterized in that

Pressure sensor, temperature sensor and electrode are sequentially distributed along the intracorporal Liquid Flow direction of the rectangular cavity；One survey It is installed simultaneously in one bellows manograph of installation, a temperature sensor or an electrode or a measured hole in metering-orifice multiple Bellows manograph, temperature sensor and electrode.

11. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 10, which is characterized in that

The parameter measurement system further includes fixing seat, margining tablet and Anti-slip cover, and the fixing seat sealing is fixed on the measurement In hole and be internally provided with central passage, the margining tablet be flexible or metal disk and be provided with it is multiple axially penetrate through jack, It is horizontally arranged in the central passage of fixing seat, and the Anti-slip cover is screwed in the external opening end of central passage by external screw thread, Its front end holds out against the margining tablet；The bellows manograph, temperature sensor and electrode pass through inserting on Anti-slip cover and margining tablet It being protruded into behind hole in the rectangular cavities, the Anti-slip cover and the fixing seat contact and are provided with sealing element on the excircle of one end, The other end is provided with the anti-turn bolt for preventing signal cable from loosening, and the anti-turn bolt is radially provided with through-hole, described It is provided with corresponding limiting holes on Anti-slip cover, after anti-turn bolt goes to position, through-hole is screwed by fixing bolt and limiting holes are kept away Exempt from anti-turn bolt rotation.

12. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 11, which is characterized in that

The margining tablet is mounted at the intermediate step structure of measured hole on the lower cover plate, the margining tablet be equipped with it is multiple and Each margining tablet is spaced or contacts between each other installation.

13. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 11, which is characterized in that

The bellows manograph includes pressure-measuring pipe, covers the pressure guiding pipe outside pressure-measuring pipe, is located at impulse tube end and sealing accommodates The bellows separation sleeve of pressure-measuring pipe end, the injection device of the interior injection anti-icing fluid of Xiang Suoshu pressure guiding pipe；Outside the end of the pressure guiding pipe Surface is provided with multiple tracks radial convex loop, and the bellows separation sleeve is flexible boot open at one end, and the inner surface in open end is arranged One is connected to after having concave ring corresponding with bulge loop, the bellows separation sleeve to engage using concave ring with the bulge loop on the pressure guiding pipe It rises, in the internal guard space for forming receiving anti-icing fluid.

14. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 10, which is characterized in that

The temperature sensor at the same measured hole is located at the lower cover plate to described at least provided with 4 At 1/4,2/4,3/4 and horizontal centre cutting line of the horizontal centre cutting line of rectangular cavities.

15. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

To accommodate the keeping warmth space that rectangle simulates chamber inside the insulating box of the constant temperature system, in the inside opposing sides of insulating box It is provided with the air-heater for realizing internal hot air convection, cooling coil composition is provided in the side wall of insulating box is used for regulating box The refrigeration system of interior temperature, the inner surface of insulating box are equipped with stainless steel mirror board, and outer surface is equipped with glass fibre formation Insulating layer is provided with transparent windows and temperature control panel on side wall, is provided at transparent windows and keeps bright in case The headlamp of degree.

16. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The gas injection system include generate pressed gas air compressor, to the air compressor generate gas into The gas booster pump of row pressurization, the low pressure storage tank of low-pressure gas after storage pressurization, the high pressure storage tank of high pressure gas after storage pressurization, It selects low pressure storage tank or high pressure storage tank to input the pressure-regulating valve of specified pressure into the rectangular cavities according to requirement of experiment, controls The flow controller of pure gas output flow size processed and control gas-liquid mixture flow；In the gas circuit before pressure-regulating valve Gas damping device is installed, the gas damping device is the pressure vessel equipped with liquid.

17. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 16, which is characterized in that

The flow controller includes the adjusting flow container for being connected in parallel the adjusting gas tank and output liquid of output gas, is controlled to adjust Gas tank and adjusting flow container are exported to the control valve of gas-liquid amount in the rectangular cavities, are provided respectively to adjust gas tank and adjusting flow container The pressure pump of the storage tank of gas and liquid and offer pressure, detects the sensor of pressure, controls the PLC unit of each component operation；

Gas chamber A and liquid chamber A are partitioned by sliding plunger inside the adjusting gas tank, the inside for adjusting flow container is by sliding plunger It is partitioned into gas chamber B and liquid chamber B, gas chamber A and liquid chamber A pass through pipeline respectively and be connected in parallel with pressure-regulating valve；Gas chamber B and liquid chamber B Be connected in parallel respectively by pipeline and pressure pump, sensor obtains pressure everywhere and exports to PLC unit, PLC unit according to The variation adjustment pressure-regulating valve of pressure value makes to input the intracorporal gas-liquid maintenance stabilization of the rectangular cavity in the rectangular cavities.

18. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 17, which is characterized in that

The pressure-regulating valve includes valve body, and it is big by one to be provided with one end in valve deck for the valve deck being bolted on valve body It holds small through shape funnel-form plunger shaft and the big one end of opening is equipped with the infundibulate of same shape in valve body, plunger shaft Piston is provided with coaxial double through channel on the axial line of piston, is equipped with band logical in the plunger shaft small end exit of valve deck The bonnet in road is movably installed with sealing ring corresponding with the double through channel outlet of piston, in bonnet in the channel of bonnet Side is provided with the pressure channel mutually passed to channel to sealing ring pressure, and it is logical that the overflow communicated with plunger shaft is provided on valve deck Road is provided with the receiving being connected to respectively with the adjusting gas tank and the adjusting flow container at the valve body position opposite with plunger shaft Chamber, the opening diameter of accommodating chamber are less than the diameter at adjacent pistons end, the briquetting of movable closing open end are provided in accommodating chamber, The piston side opposite with accommodating chamber is provided with diaphragm seal.

19. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 17, which is characterized in that

The control valve includes valve body, valve rod, hand screw, be provided in valve body infusion channel be connected to the valve of infusion channel Bar mounting groove, valve rod are flange collar that is cylindrical and being provided with radially protruding at one end, and one end of hand screw is by being threaded onto It is provided with the groove of activity clamping valve rod flange collar in the open end of valve rod mounting groove and at the end, the flange collar of valve rod is caught in groove And the other end is located in infusion channel and can completely enclose infusion channel, the outer diameter that sealing ring and sealing ring are cased on valve rod is big In the outer diameter of groove；

The infusion channel includes the feed pathway being parallel to each other and apocenosis passage, and vertical connection feed pathway and drain are led to The closed channel of road one end, valve rod are inserted into closed channel.

20. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 19, which is characterized in that

The structure that activity clamps the flange collar is as follows: being screwed with installation set by screw thread in the groove, the inside of installation set is Holding tank corresponding with valve rod flange collar one end shape, provided circumferentially about in installation set have the card being laterally caught in for flange collar one end Mouthful；Or

The side of groove is provided with bayonet corresponding with valve rod flange collar one end shape, and by connecting at bolt and bayonet to seal Close the closing block of bayonet.

21. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The constant speed and constant pressure pump of the liquid injection system is that twin-tub constant speed and constant pressure pumps, and the twin-tub constant speed and constant pressure pump passes through two cylinders Realize single cylinder independently working, twin-tub independently operation and twin-tub linkage operation, it is defeated using distilled water or kerosene as driving medium Out, realize that the constant pressure to driving medium, constant current and tracking PLC control during output；

The liquid injection system further includes the pressure tune being mounted between the twin-tub constant speed and constant pressure pump and the rectangular cavities Piston is saved, the hydraulic adjustment piston includes the hollow body of both ends open, passes through external screw thread at the both ends of the hollow body It is screwed with upper cover and lower cover respectively, and the inside of the two-port in the hollow body is separately installed with seal plug, described close Block head is provided with the connected unit outwardly protruded far from the hollow body on one side, is arranged in the upper cover and the lower lid There is the through-hole passed through for the connected unit, is provided in the connected unit and axially penetrates through hole；

The inside of hollow body be equipped with can axially move and by hollow body internal insulation at two individual cavities every Plate；One of cavity and the twin-tub constant speed and constant pressure pump are connected to, another cavity is connected to the negative pressure sample cavity, and described The solution for meeting hydrate generation is filled in the cavity of negative pressure sample cavity connection, distilled water or kerosene in another cavity It pushes in the lower injection negative pressure sample cavity.

22. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

The steady state measurement device for realizing the measurement of stable state heated filament is provided in the rectangular cavities, the steady state measurement device includes Be inserted into the rectangular cavities and be located at the platinum product heated filament of horizontal middle, cover the sheath outside platinum product heated filament, by sheath and Platinum product heated filament both ends are fixed on the end socket and fixing seat at the rectangular cavities both ends；

The fixing seat is internally provided with axially extending bore, passes through the installation on the external screw thread and the rectangular cavities side wall of one end Hole connection, the seal joint of extrusion deformation is equipped in mounting hole, tension is screwed on the external screw thread of the other end of fixing seat Connector is equipped with the adjusting nut that adjusting tenses connector degree of tension close to one end of fixing seat tensing connector, it is another to tense connector Fluting is provided in the end of one end carves jam-packed ring, and is limited in the tightening pressure tensed on connector for jam-packed ring is carved Cap.

23. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

It further include being heated to the intracorporal porous media of the rectangular cavity to simulate and change environment temperature when hydrate generates Heating system, the heating system include providing the explosion-proof type steam generator of steam and hot water simultaneously, and steam generator includes It is internally provided with the cartridge heater of heating chamber, the barrel of cartridge heater is double-layer hollow structure, and centre is hot water space, in heating chamber It is provided with annular or polygon is directly connected to the heating tube of hot water space in barrel, having heaters is set in the lower section of heating tube, Top is provided with the steam pipe for the steam discharge generated in heating tube, and adjusting output is provided in the output channel of steam pipe The cold water exchange area of temperature；

And the temp probe of temperature everywhere is detected, the pressure probe of input and output pressure is detected, is handed over to hot water space and cold water The water inlet pipe of area's water supply is changed, exports the outlet pipe of steam and/or hot water, and predetermined steam or hot water output are controlled according to instruction PLC control unit, exchange area with the pipeline of control valve with hot water space by being connected to.

24. three-dimensional comprehensive reservoir hydrate sunykatuib analysis system according to claim 1, which is characterized in that

Further include by device for storing liquid the through-hole inlet of the rectangular cavities using drilling fluid realize annular circulation flowing with The drilling-fluid circulation system of influence and pollution of the sunykatuib analysis drilling fluid to hydrate reservoir conductive features；The device for storing liquid packet The fluid reservoir of storage well liquid is included, the circulating pump that control well liquid circulates adjusts well to the temperature controller that circulation well liquid is heated The regulator of pressure, is arranged in the simulation well head annulus structure of described rectangular cavities one end when liquid recycles；

It is connect after the delivery outlet connection circulating pump of the fluid reservoir with the entrance of simulation well head annulus structure, simulates well head annular space knot The outlet of structure is connect after connecting with regulator with the input port of fluid reservoir, and the temperature controller is individually connect with fluid reservoir, described The output end of circulating pump is connect by branch pipe with liquid storage pipe.