CN203729956U - Visual simulating device for exploitation of unconventional natural gas - Google Patents
Visual simulating device for exploitation of unconventional natural gas Download PDFInfo
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- CN203729956U CN203729956U CN201320793543.4U CN201320793543U CN203729956U CN 203729956 U CN203729956 U CN 203729956U CN 201320793543 U CN201320793543 U CN 201320793543U CN 203729956 U CN203729956 U CN 203729956U
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Abstract
The utility model discloses a visual simulating device for exploitation of unconventional natural gas. The visual simulating device comprises an oil pumping unit dynamic simulation apparatus, a vertical well simulation visual apparatus, and a temperature and pressure control system. The oil pumping unit dynamic simulation apparatus is connected with vertical well simulation visual apparatus that is disposed on a visual rock core holder model. The visual rock core holder model is immersed into water in a visual water tank. The temperature and pressure control system is used for monitoring and adjusting temperature and pressure. The oil pumping unit dynamic simulation apparatus, the vertical well simulation visual apparatus, and the temperature and pressure control system are all connected with the visual rock core holder model through joints. The device of the utility model helps people to directly and visually research water absorbing and water permeating conditions of unconventional natural gas in top plates and base plates during vertical well exploitation, research many seepage problems during vertical well exploitation and research situations of stratum rock debris carried and moved in vertical wells, thereby providing basic parameters for exploitation of unconventional natural gas.
Description
Technical field
The utility model relates to natural gas extraction field, is specifically related to a kind of unconventional natural gas extraction visual Simulation device.
Background technology
Unconventional natural gas is the natural gas that a kind of non-structure control, large area become to hide.The U.S. is now natural gas exploration and development degree and the most flourishing country of production application technology in the world, and the gross annual output amount of three kinds of unconventional natural gases such as its tight gas, coal bed gas and shale gas adds up to the natural gas gross annual output amount 1/3rd that exceeded.In plane, at center, basin, margin slope and periphery outcrop area formed the situation of natural gas exploration and development production widely.On section, a large amount of natural gases of output in shallow-layer, the exploration main body degree of depth and layer position, deep layer and super deep layer.China and U.S.A all has complicated geology background and various Basin Developing type, there is the extensive existence in basin such as various coal measure stratas, aerogenesis source rock, tight sand simultaneously, basin scale size, grow geologic age, master stratum thickness, even structure destruction degree etc. is all roughly the same, also ought have a large amount of unconventional natural gas outputs according to similar geological analogs principle China.The Main Gaps that China produces with U.S. natural gas exploration is the larger gaps of aspect existence such as degree of prospecting height is different, understanding thinking is each has something to recommend him, technical level is not characteristic, understanding, exploration and development technology, the level of comprehensive utilization of distributing in the mechanism to unconventional natural gas.In geology, the unconventional Natural Gas Type of indication is varied, comprise into living beings, strength maturity factor, chemical composition, the poly-power of fortune, become to hide the natural gas that the many-sides such as mechanism, output state, resource abundance are different from conventional understanding and understand, be also included within the Natural Gas Type in engineering condition with particularity, they all have relativity in varying degrees.Along with economic technology condition is improved and awareness improves and changes gradually the specific properties of a conventional gas into.Wherein comprise many factors, the sorting technique directly related with exploration idea and development technique mainly contains two kinds, one is on origin cause of formation source, natural gas can be divided into pyrolysis and a high overmature gas of cracking gas and high metamorphic episode etc. on biological chemistry action methane gas, an organic hot ripe peak underdone low ripe gas, conventional meaning before, separately corresponding to different geological conditionss and geology particularity.Another kind is to become to hide in power type and mechanism pattern, natural gas can be divided in coal measure strata with suction-operated and take in coal bed gas, mud stone and the shale of power form to gather taking piston type fortune the Water Soluble Gas existing with the dissolution mechanism such as hydration and filling in the conventional reservoir gas that is subject to buoyancy control and have the poly-feature of displaced type fortune on the root edge gas of feature, conventional meaning, formation water in absorption and the simultaneous shale gas of free phase, Sandstone Gas Reservoir as the leading factor.And hydrate taking Van der Waals force as gas accumulation power etc. under special temperature and pressure condition.Wherein dissimilar natural gas has special geologic setting, preservative feature and exploration production feature separately, between type, be respectively related each other, successive transition, formed from the transition on mechanism to conventional reservoir trap and outcrop area of gas source rock, tight sand, distribute on continuous natural gas accumulation and distribution series.Unconventional natural gas comprises tight gas, shale gas, coal bed gas.An important parameter evaluating its enrichment degree is workability.Whether the coal bed gas that will effectively assess somewhere has business-like prospect, must set up workability evaluating data accurately and simulate and production forecast for gas reservoir.Unconventional natural gas extraction analog machine is to provide unique instrument of this data.
The domestic equipment that also there is no unconventional natural gas extraction simulation aspect at present, cannot be to both having adsorbed gas, and the unconventional natural gas again with free gas feature is carried out physical analogy, evaluates various analog parameters.Therefore, in the urgent need to researching and developing a unconventional natural gas extraction physical simulation experiment device.
Utility model content
Provide hereinafter about brief overview of the present utility model, to the basic comprehension about some aspect of the present utility model is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present utility model.It is not that intention is determined key of the present utility model or pith, neither be intended to limit scope of the present utility model.Its object is only that the form of simplifying provides some concept, using this as the preorder in greater detail of discussing after a while.
The object of the utility model embodiment is the defect for above-mentioned prior art, and a kind of unconventional natural gas exploitation simulator is provided, and this device makes unconventional natural gas extraction simulation become visual, and experiment effect is more intuitive and reliable.
To achieve these goals, the technical scheme that the utility model is taked is:
A kind of unconventional natural gas exploitation simulator, comprising:
Oil pumper dynamic simulation apparatus, peupendicular hole emulation visual device and temperature, pressure control system;
Described oil pumper dynamic simulation apparatus connects peupendicular hole emulation visual device, and described peupendicular hole emulation visual device is arranged on visual core holding unit model, and described visual core holding unit model is immersed in the water of visual water tank;
Described temperature, pressure Measurement and Control System, monitors and regulates for the bottom temp to peupendicular hole emulation visual device and pressure;
Described oil pumper dynamic simulation apparatus, peupendicular hole simulator and temperature, pressure Measurement and Control System are all connected with visual core holding unit model by interface.
Compared with prior art, the beneficial effects of the utility model are:
Utilize the experimental facilities of the present utility model can be in the unconventional construction of natural gas fields of visual state Imitating, can study water suction and the permeable situation of unconventional natural gas roof and floor in straight well recovery process visual in imagely, in the exploitation of research straight well, multinomial Seepage problems and earth cuttings are carried and migration situation in straight well, for unconventional natural gas extraction provides underlying parameter, measure the various technical datas of unconventional natural gas extraction simultaneously.Utilize this experimental facilities to test the rock core taking out in unconventional natural gas exploration, with computer to image data process obtain unconventional natural gas extraction technical data, evaluate this area's unconventional gas resource potentiality and DEVELOPMENT PROSPECT, be particularly useful for the manufacture of unconventional construction of natural gas fields experimental facilities.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the oil pumper dynamic simulation apparatus that Fig. 1 provides for the utility model embodiment;
The structural representation of the peupendicular hole emulation visual device that Fig. 2 provides for the utility model embodiment;
Fig. 3 is installed on the structural representation in visual water tank for the visual core holding unit model that the utility model embodiment provides;
The structural representation of the temperature, pressure Measurement and Control System that Fig. 4 provides for the utility model embodiment;
The structural representation of the computer data acquiring treatment system that Fig. 5 provides for the utility model embodiment;
The peupendicular hole emulation visual device that Fig. 6 provides for the utility model embodiment is installed on the structural representation of visual core holding unit model;
Fig. 7 is the top view of Fig. 6.
Reference numeral:
100-oil pumper dynamic simulation apparatus; 200-peupendicular hole emulation visual device; 300-temperature, pressure Measurement and Control System; The visual core holding unit model of 400-; The visual water tank of 500-; 600-computer data acquiring treatment system;
1-motor; 2-brake; 3-reduction box; 4-crank; 5-balance weight; 6-connecting rod; 7-crossbeam; 8-balance weight; 9-walking beam bearing; 10-walking beam; 11-horse head; 12-polished rod eye; 13-support; 14-base; 15-rope locking machine; 16-the first wellhead assembly; 17 second wellhead assemblies; 18-sucker rod; 19-sleeve pipe; 20-inner tube; 21-glass marble; 22-one way valve; 23-piston; 24-downhole stabilisers; 25 – cables; 26-casing; 27, fixed screw 28-simulation well head; 29-top cover; 30-nut; 31-pin; 32-screw; 36-bracing frame; 37-water tank bottom plate; 38-water tank bracing frame; 39-locates castor.
Detailed description of the invention
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiment.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and feature shown in one or more other accompanying drawing or embodiment.It should be noted that for purposes of clarity, in accompanying drawing and explanation, omitted with the utility model irrelevant, expression and the description of parts known to persons of ordinary skill in the art and processing.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to a kind of unconventional natural gas exploitation simulator of Fig. 1, Fig. 2, Fig. 3 and Fig. 4, comprising:
Oil pumper dynamic simulation apparatus 100, peupendicular hole emulation visual device 200 and temperature, pressure control system 300;
Oil pumper dynamic simulation apparatus 100 connects peupendicular hole emulation visual device 200, and peupendicular hole emulation visual device 200 is arranged on visual core holding unit model 400, and visual core holding unit model 400 is immersed in the water of visual water tank 500;
Temperature, pressure Measurement and Control System 300, monitors and regulates for the bottom temp to peupendicular hole emulation visual device and pressure;
Oil pumper dynamic simulation apparatus 100, peupendicular hole emulation visual device 200 and temperature, pressure Measurement and Control System 300 are all connected with visual core holding unit model 400 by interface.
Oil pumper dynamic simulation apparatus of the present utility model, for extracting liquid out from peupendicular hole emulation visual device; Peupendicular hole emulation visual device, for the process of the dynamic drawing liquid of dynamic analog peupendicular hole, and the process that can observe drawing liquid, discharge opeing; In temperature, pressure control system, temperature control system is mainly used to control the temperature of liquid in visual water tank.Control pressurer system is made up of pressure sensor and secondary meter, is mainly arranged in the downhole stabilisers of peupendicular hole emulation visual device, and the pressure in monitoring shaft bottom changes.
Referring to Fig. 5, also comprise computer data acquiring treatment system 600, for gathering bottom hole temperature (BHT) and the pressure of peupendicular hole emulation visual device, also extract the flow of liquid out from peupendicular hole emulation visual device for gathering oil pumper dynamic simulation apparatus, monitor and control, described computer data acquiring treatment system is connected with visual core holding unit model by interface.
Computer data acquiring treatment system of the present utility model, for gathering the temperature of visual water tank hot water, bottom pressure, the liquid of peupendicular hole emulation visual device enters the flow in sucker rod, monitor and control by pressure sensor and pressure controller, if show after computer acquisition pressure data that pressure is excessive, by pressure controller controlled pressure, reduce flow, otherwise, flow increased.
The utility model can be visual in imagely for water suction and the permeable situation of the unconventional oil and gas reservoir recovery process of analog study roof and floor, in the time of simulated experiment schematic design, can combine the stratum combination that realizes unconventional reservoir by rock core, can see water suction and permeable process by simulation., can in straight well, be carried and migration situation for multinomial Seepage problems and earth cuttings in the exploitation of research straight well meanwhile, for unconventional natural gas extraction provides underlying parameter, measure pressure, the flow parameter of unconventional natural gas extraction simultaneously.Utilize this experimental facilities to carry out simulated experiment to the full-hole core or the plunger sample that utilize oil/gas drilling, with computer to image data process obtain unconventional natural gas extraction technical data, evaluate this area's unconventional gas resource potentiality and DEVELOPMENT PROSPECT, be particularly useful for the manufacture of unconventional construction of natural gas fields experimental facilities.
Referring to Fig. 1, oil pumper dynamic simulation apparatus 100 comprises: walking beam 10, balance weight 8, horse head 11, polished rod eye 12, walking beam bearing 9, motor 1, brake 2, reduction box 3, crank 4, balance weight 5, connecting rod 6, crossbeam 7, support 13 and base 14;
Walking beam 10 one end are fixed with balance weight 8, the other end is provided with horse head 11, on horse head 11, be fixed with polished rod eye 12, walking beam 10 is placed on walking beam bearing 9 by pulley, walking beam bearing 9 is fixed on support 13, support 13, reduction box 3 and motor 1 are fixed on base 14, motor 1 connects reduction box 3 by belt, reduction box 3 connects brake 2, crank 4 one end fixed balance weights 5, the other end is connected to reduction box 3 one sides, and crank 4 is by connecting rod 6 connecting cross beams 7, and crossbeam 7 is connected with the walking beam 10 near balance weight 8 one sides.
Oil pumper dynamic simulation apparatus of the present utility model is the power source pumping of peupendicular hole emulation visual device, according to the operating principle of oil pumper taking beam pumping unit as prototype, scaled one-tenth test-type oil pumper.In the time that the electronic work of oil pumper moves reciprocatingly, be used in conjunction with sucker rod, oil well pump, drive the plunger displacement pump in peupendicular hole to move up and down, down-hole liquid can be extracted into ground.Motor, reduction box and support are fixed on base by welding manner.Brake is connected with reduction box by screw, crank is generally screwed balance weight, one end is connected to reduction box one side by screw in addition, crank is connected by connecting rod with walking beam, and connecting rod top is connected with crank by crossbeam, and connecting rod bottom is fixedly connected with crank by screw, balance weight is welded on walking beam, polished rod eye is welded on horse head, and horse head is welded on walking beam, and support is screwed on base.
Referring to Fig. 1 and Fig. 2, preferred, horse head 11 belows are provided with pin thread, and peupendicular hole emulation visual device top is provided with corresponding box, and described pin thread connects box.Be connected with box by pin thread, it is convenient to connect.
Referring to Fig. 2, peupendicular hole emulation visual device 200 comprises sleeve pipe 19, sleeve pipe 19 tops are provided with the first wellhead assembly 16 and the second wellhead assembly 17 successively, the bottom of sleeve pipe 19 is provided with downhole stabilisers 24, in sleeve pipe 19, be provided with inner tube 20, in inner tube 20, be provided with sucker rod 18, sucker rod 18 bottoms connect piston 23, in the sucker rod 18 on piston 23 tops, be provided with one way valve 22, the top of one way valve 22 is provided with glass marble 21, sucker rod 18 tops connect the second wellhead assembly 17, cable 25 is equipped with in sucker rod the inside, cable 25 tops connect rope locking machine 15, rope locking machine is for attached cable position, rope locking machine 15 connects the horse head of oil pumper dynamic simulation apparatus, the bottom of peupendicular hole emulation visual device 200 is arranged in visual core holding unit model, be that rope locking machine 15 is provided with corresponding box, be connected with the pin thread of horse head 11 belows.
The utility model rope locking machine 15 is an annulus with four holes, be connected to first by the mode of being spirally connected, on two wellhead assemblies, sucker rod is placed in inner tube, sucker rod can move by easy on and off, the two ends up and down of inner tube are placed in sleeve pipe by screw fashion, glass marble is placed in the top of one way valve, when sucker rod drives piston to move upward, glass marble moves downward, closed check valve, fluid in sealing inner tube, fluid is moved upward with inner tube, gas flows out from the first wellhead assembly 16, liquid flows out from the second wellhead assembly 17, in the time that sucker rod drives piston to move downward, one-way valve opens, lower flow flows into inner tube.So repeatedly carry out, fluid is constantly inhaled into from the port of bottom downhole stabilisers, and is constantly produced.Wherein, preferably piston diameter is 50mm, and stroke is 200mm, and the flow of peupendicular hole emulation visual device is 4.5L/min.
Referring to Fig. 3, Fig. 6 and Fig. 7, visual core holding unit model 400 comprises casing 26, casing 26 is provided with top cover 29, top cover 29 is provided with simulation well head 28, casing 26 is interior can be equipped with at least one in rock, coal cinder or coal dust according to simulated experiment scheme, visual core holding unit model 400 bottoms are provided with bracing frame 36, and bracing frame 36 is placed in visual water tank 500, and peupendicular hole emulation visual device 200 one end are arranged on casing 26 after simulating well head 28.On casing 26, be also provided with reserved fixed screw 27, in the time that water tank is placed the place that other need to be fixing, can use fixed screw 27 fixing.
In the present embodiment, casing 26 is square, and/or the length of casing 26 is 400-600mm, and preferred casing specification is inner chamber 500mm × 500mm × 500mm, and pressure is normal pressure, in-built coal cinder and coal dust.
Referring to Fig. 3 and Fig. 6, bracing frame 36 is immersed in liquid, and therefore bracing frame 36 adopts stainless steel.Select as stainless steel bracing frame, and/or top cover 29 is fixedly connected with casing 26 with nut 32 by screw 30.When top cover 29 is buckled on casing 33, need to fix the two position time, on top cover 29 and casing 33, there is the hole of corresponding size, when use, after the hole on top cover 29 is aimed at the hole on casing 33, can use pin 31 to insert in hole wherein, insert more deeply tighter.Reach the advantage of firm and reliable connection.
Referring to Fig. 3, in the present embodiment, visual water tank 500 comprises base plate 37, and base plate 37 belows are provided with water tank bracing frame 38, can also below water tank bracing frame 38, be provided with location castor 39.
Visual water tank of the present utility model is mainly used in the liquid after splendid attire preheating, and visual core holding unit model is installed and is immersed in liquid.Visual water tank specification is: interior chamber 1000mm × 1000mm × 800mm, and for organic tempered glass is made.In four sides and the bottom surface of visual core holding unit model, respectively be furnished with four interfaces, 20 interfaces altogether, interface is 10mm with inner chamber connecting place latus rectum, be 3mm or 6mm(capable of replacing with liquid connecting place latus rectum in visual water tank), the used time can not block with plug each interface.Location castor is set, convenient mobile.
The utility model also provides a kind of above-mentioned unconventional natural gas exploitation simulator to carry out the method for simulation mining, comprises the following steps:
(1) give in the casing of visual core holding unit model and place sample, and build top cover, visual core holding unit model is put into visual water tank; Described sample is at least one in rock, coal cinder and coal dust;
(2) peupendicular hole emulation visual device one end is arranged on casing after through the simulation well head on top cover, then connects oil pumper dynamic simulation apparatus;
(3) in visual water tank, put into formation water, the water surface did not have visual core holding unit model upper surface;
(4) start oil pumper, formation water is extracted out by oil pumper, flowed out from sleeve pipe, flow in a metering device, carry out the metering of produced water and the metering of landwaste amount in the unit interval, observe from the side the running orbit of landwaste in visual core holding unit model simultaneously;
(5) by temperature, pressure control system, the bottom temp of peupendicular hole emulation visual device is regulated, under simulation different temperatures, the extraction efficiency of exploitation simulator, and/or, by pressure monitoring system, the variation of the base pressure of detection of vertical well emulation visual device.
The utility model temperature, pressure Measurement and Control System is mainly made up of three way cock, temperature, pressure control Displaying Meter and high-precision temperature and pressure transmitter and flow meter, the probe of temperature pick up is put into visual core holding unit model by interface, pressure sensor and temperature pick up are placed in the downhole stabilisers of peupendicular hole emulation visual device, monitor the variation of the pressure and temperature in vertical emulation shaft bottom.Computer data acquiring treatment system mainly comprises computer, printer, data collecting card, sampling and processing software etc., can gather the parameters such as pressure, temperature, flow in good time.By digital-to-analogue conversion plate, the analog electrical signal of temperature, pressure, flow transmitter collection is converted to data signal, by computer recording in hard disk.
Computer utilization obtains temperature data, pressure data and data on flows, can carry out accumulative total output tolerance and the liquid volume in the unit of account time by following formula.
V
i=S
i*T
i-S
i-1*T
i-1
Wherein, i, i-1 is the sequence number of record;
T is the time, s;
S is flow, ml/s;
V is volume, ml.
The utility model provides a kind of unconventional natural gas straight well production technique physical simulating device, has realized visual Simulation with timer, and effect is more directly perceived, clear.The utility model can be simulated under Different Strata temperature, pressure condition, unconventional natural gas extraction straight well under certain pump drainage working system, the speed of the outputs such as natural gas, formation water, landwaste.
The utility model can be by vehicle-mounted running toward unconventional construction of natural gas fields scene, each components of system as directed is assembled, the time that the different geology feature-sets that have according to different regions are tested well, carry out the on-the-spot unconventional natural gas extraction field experiment of exploration, can measure the seepage flow characteristics of the unconventional natural gas reservoirs of particular locality, different gas-bearing property feature, the air content regularity of distribution and different gas storage capabilities.
The utility model has pressure sensor interface in shaft bottom Interface design, the pressure that can in good time monitor peupendicular hole changes, in experiment, be first ready to rock or coal petrography sample, sample is cut into and should carries out according to visual core holding unit size, make just can be positioned in visual core holding unit model, fastening nut, is fixed on sample in casing, and then visual core holding unit model is put into visual water tank, be loaded on peupendicular hole emulation visual device, connect oil pumper.Before testing, first in visual water tank, put into simulated formation water, simulated formation water is that 5% Klorvess Liquid is by volume for 1:1 ratio is prepared by pure water and mass percent concentration, the water surface did not have visual core holding unit model upper surface, then start oil pumper and start experiment, formation water starts to be extracted out by oil pumper, flow out from sleeve pipe, flow in a metering device, carry out the metering of produced water and the metering of landwaste amount in the unit interval, observe from the side the running orbit of landwaste in visual core holding unit model simultaneously, determine that it is floated migration, great-jump-forward migration, or staged migrational mode.From temperature, pressure control system, the bottom temp of peupendicular hole emulation visual device is regulated simultaneously, under simulation different temperatures, the extraction efficiency of exploitation simulator is passed through pressure monitoring system simultaneously, study under different mining working systems the variation of peupendicular hole bottom pressure.
Adopt the utility model to carry out unconventional natural gas extraction experimental work.By to the regional exploitation simulated experiment such as Sichuan, Shanxi, by surveyed temperature, pressure and data on flows application this area low infiltration sandrock, coal bed gas and shale gas exploitation, obtain the good effect that instructs.Specific embodiment is: in the simulation of Qinshui Basin In Shanxi Province coal petrography, by system simulation, obtain the 1000m degree of depth, 25 DEG C of temperature, under pressure 12MPa condition, when flow is less than 20ml/ minute, the migration mode of landwaste just shows as floated migration, migration efficiency is higher than great-jump-forward and staged migration, be conducive to landwaste and discharge well head, can not cause shaft bottom to stop up, be beneficial to the steady production of gas well, simulated experiment, by having found out the migration pattern of landwaste, is instructed coal-bed gas exploitation like this.Show that this apparatus can complete on-the-spot unconventional natural gas extraction analog operation smoothly, the experimental data providing is accurately credible, can instruct efficiently and easily unconventional construction of natural gas fields practice.
In the utility model the various embodiments described above, the sequence number of embodiment is only convenient to describe, and does not represent the quality of embodiment.Description to each embodiment all emphasizes particularly on different fields, and there is no the part of detailed description in certain embodiment, can be referring to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of programmed instruction, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as read-only storage (Read-Only Memory is called for short ROM), random access memory (Random Access Memory is called for short RAM), magnetic disc or CDs.
In the embodiment such as apparatus and method of the present utility model, obviously, each parts or each step reconfigure after can decomposing, combine and/or decomposing.These decomposition and/or reconfigure and should be considered as equivalents of the present utility model.Simultaneously, in the above in the description of the utility model specific embodiment, describe and/or the feature that illustrates can be used in same or similar mode in one or more other embodiment for a kind of embodiment, combined with the feature in other embodiment, or substitute the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence that refers to feature, key element, step or assembly while use herein, but does not get rid of the existence of one or more further feature, key element, step or assembly or add.
Finally it should be noted that: although described above the utility model and advantage thereof in detail, be to be understood that in the case of not exceeding the spirit and scope of the present utility model that limited by appended claim and can carry out various changes, alternative and conversion.And scope of the present utility model is not limited only to the specific embodiment of the described process of manual, equipment, means, method and step.One of ordinary skilled in the art will readily appreciate that from disclosure of the present utility model, can use and carries out with the essentially identical function of corresponding embodiment described herein or obtain process, equipment, means, method or step result essentially identical with it, that existing and will be developed future according to the utility model.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (10)
1. a unconventional natural gas extraction visual Simulation device, is characterized in that, comprising:
Oil pumper dynamic simulation apparatus, peupendicular hole emulation visual device and temperature, pressure control system;
Described oil pumper dynamic simulation apparatus connects peupendicular hole emulation visual device, and described peupendicular hole emulation visual device is arranged on visual core holding unit model, and described visual core holding unit model is immersed in the water of visual water tank;
Described temperature, pressure Measurement and Control System, monitors and regulates for the bottom temp to peupendicular hole emulation visual device and pressure;
Described oil pumper dynamic simulation apparatus, peupendicular hole emulation visual device and temperature, pressure Measurement and Control System are all connected with visual core holding unit model by interface.
2. unconventional natural gas extraction visual Simulation device according to claim 1, it is characterized in that, also comprise computer data acquiring treatment system, for gathering bottom hole temperature (BHT) and the pressure of peupendicular hole emulation visual device, also extract the flow of liquid out from peupendicular hole emulation visual device for gathering oil pumper dynamic simulation apparatus, monitor and control, described computer data acquiring treatment system is connected with visual core holding unit model by interface.
3. unconventional natural gas extraction visual Simulation device according to claim 1 and 2, it is characterized in that, described oil pumper dynamic simulation apparatus comprises: walking beam, balance weight, horse head, polished rod eye, walking beam bearing, motor, brake, reduction box, crank, balance weight, connecting rod, crossbeam, support and base;
Described walking beam one end is fixed with balance weight, and the other end is provided with horse head, and the top of described peupendicular hole emulation visual device is connected to the below of described horse head; On described horse head, be fixed with polished rod eye, described walking beam is placed on walking beam bearing by pulley, described walking beam bearing is fixed on support, described support, reduction box and motor are fixed on base, and described motor connects reduction box by belt, and described reduction box connects brake, described crank one end fixed balance weight, the other end is connected to reduction box one side, and described crank is by connecting rod connecting cross beam, and described crossbeam is connected with the walking beam near described balance weight one side.
4. unconventional natural gas extraction visual Simulation device according to claim 3, is characterized in that, described horse head below is provided with pin thread, and peupendicular hole emulation visual device top is provided with corresponding box, and described pin thread connects box.
5. unconventional natural gas extraction visual Simulation device according to claim 1 and 2, it is characterized in that, described peupendicular hole emulation visual device comprises sleeve pipe, described sleeve pipe top is provided with the first wellhead assembly and the second wellhead assembly successively, the bottom of described sleeve pipe is provided with downhole stabilisers, in described sleeve pipe, be provided with inner tube, in described inner tube, be provided with sucker rod, described sucker rod bottom connects piston, in the sucker rod on described piston top, be provided with one way valve, the top of described one way valve is provided with glass marble, described sucker rod top connects the second wellhead assembly, described sucker rod is equipped with cable, described cable top connects rope locking machine, described rope locking machine connects the horse head of described oil pumper dynamic simulation apparatus, the bottom of described peupendicular hole emulation visual device is arranged in described visual core holding unit model.
6. unconventional natural gas extraction visual Simulation device according to claim 1 and 2, it is characterized in that, described visual core holding unit model comprises casing, described casing is provided with top cover, described top cover is provided with simulation well head, in described casing, be provided with at least one in rock, coal cinder and coal dust, described visual core holding unit model lower part is provided with bracing frame, support frame as described above is placed in described visual water tank, and described peupendicular hole emulation visual device one end is arranged on described casing through after described simulation well head.
7. unconventional natural gas extraction visual Simulation device according to claim 6, is characterized in that, described casing is square, and/or the length of described casing is 400-600mm.
8. unconventional natural gas extraction visual Simulation device according to claim 6, is characterized in that, support frame as described above is stainless steel bracing frame; And/or described top cover is fixedly connected with described casing with nut by screw.
9. unconventional natural gas extraction visual Simulation device according to claim 1 and 2, is characterized in that, described visual water tank comprises base plate, and described base plate below is provided with water tank bracing frame.
10. unconventional natural gas extraction visual Simulation device according to claim 9, is characterized in that, described water tank bracing frame below is provided with location castor.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643920A (en) * | 2013-12-04 | 2014-03-19 | 北京源海威科技有限公司 | Unconventional gas extraction visual simulator and extraction simulation method thereof |
| CN107067867A (en) * | 2017-06-01 | 2017-08-18 | 晋城职业技术学院 | A kind of coal bed gas extraction occupation examination simulation system and method |
-
2013
- 2013-12-04 CN CN201320793543.4U patent/CN203729956U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643920A (en) * | 2013-12-04 | 2014-03-19 | 北京源海威科技有限公司 | Unconventional gas extraction visual simulator and extraction simulation method thereof |
| CN103643920B (en) * | 2013-12-04 | 2016-04-06 | 北京源海威科技有限公司 | The method of Unconventional forage exploitation visual Simulation device and simulation mining thereof |
| CN107067867A (en) * | 2017-06-01 | 2017-08-18 | 晋城职业技术学院 | A kind of coal bed gas extraction occupation examination simulation system and method |
| CN107067867B (en) * | 2017-06-01 | 2023-03-14 | 晋城职业技术学院 | Coal bed gas drainage and mining occupational assessment simulation system and method |
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