CN109709611A - A kind of rotating device of gas hydrates exploitation imitative experimental appliance - Google Patents

A kind of rotating device of gas hydrates exploitation imitative experimental appliance Download PDF

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CN109709611A
CN109709611A CN201811639959.4A CN201811639959A CN109709611A CN 109709611 A CN109709611 A CN 109709611A CN 201811639959 A CN201811639959 A CN 201811639959A CN 109709611 A CN109709611 A CN 109709611A
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pressure
model
ambulatory
rectangular
plane frame
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CN109709611B (en
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陆程
祝有海
庞守吉
白名岗
张帅
肖睿
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CHINA GEOLOGICAL SURVEY OIL GAS RESOURCE SURVEY CENTER
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CHINA GEOLOGICAL SURVEY OIL GAS RESOURCE SURVEY CENTER
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Abstract

The invention discloses a kind of rotating devices of gas hydrates exploitation imitative experimental appliance, including model support pedestal and model ontology, the rotating mechanism of driving model ontology rotation is additionally provided on model support pedestal, the retaining mechanism for keeping heeling condition stability is additionally provided on model ontology, the upper end face of model ontology is equipped with model well pattern, rotating mechanism includes servo motor and driving gear, the side of model support pedestal is set there are two support post, straight trip fixed pole is equipped between two support posts, fixed pole of keeping straight on is equipped with major diameter arc panel, major diameter arc panel is by tooth form item and the intermeshing of gear is driven to realize rotation, the lateral surface of major diameter arc panel is respectively equipped with promotion stock, the end of two promotion stocks is separately mounted on the front and rear panel center of model ontology；This programme can compare the production performance feature of hydrate under the conditions of different well pattern modes, well spacing density, and optimized well pattern development plan greatly expands research range.

Description

A kind of rotating device of gas hydrates exploitation imitative experimental appliance
Technical field
The present invention relates to hydrate simulator technical field, specially a kind of gas hydrates exploitation simulated experiment dress The rotating device set.
Background technique
Considerable reserves push being constantly progressive for development technique, and the innovation of technology again will be efficient dynamic with dynamic reserve.This generation Since discipline, the whole world all recognizes that gas hydrates are a kind of clean energy resourcies for substituting conventional fossil fuel.The whole world has found Hydrate mineral reserve point is more than at 200, and with current energy-consuming trend, only the hydrate of exploitation 15% is just used for the whole world 200 years as long as.But the stabilization Temperature-pressure Conditions of its own formation, determine the particularity of its mining method, in addition it was exploited The influence with environment is need further to assess in journey.Therefore, at present to the research of hydrate exploitation except a few countries and Other than the runin that area carried out individual well or single well group is adopted, overwhelming majority research is also in laboratory physical analogy and Numerical-Mode The quasi- stage.
In order to develop and utilize 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.
It based on the above method, is generally also simulated before carrying out practical exploitation, the research in experiment both at home and abroad The research of thermal stimulation methane hydrate is only limitted to one-dimensional long rock core holder, the simulation of second vertical well.However, hydrate is opened Hair is no different with conventional gas and oil, is equally the process that a three-dimensional seepage field pressure is constantly landed.In order to more authentic and valid Solution grasps different development schemes in the synthesis, decomposition and recovery process of hydrate, the reservoir object under the conditions of different exploitation well groups Property, temperature, pressure, change of production rule etc. influence the important sensitive parameter of pilot production, carry out three-dimensional hydrate extracting experiment simulation, The decomposition behavior of hydrate is studied especially on three dimension scale, it is significant, theoretical foundation is provided for practical exploitation.And it is existing There is also defects below in simulator:
(1) existing simulator can not construct specific earth formation, Huo Zhetong according to actual geologic information Earth formation is crossed to simulate actually located environment, since the process is difficult to effectively be simulated so that the effect of simulation with Actual result is inconsistent or has apparent difference, causes the result of simulation that can not be directly used in the actual production of guidance, It can only be as the auxiliary foundation of theoretical direction；
(2) existing simulator is often one enclosed, and the condition simulated may be restricted to model ontology, and And its all parameter and simulated conditions can not be combined to form dynamic equilibrium, it can not be locating for simulating hydrate Dynamic environment, especially during exploitation, locating for environment be in establish balance and destruction of balance in cyclic process In, therefore dynamic recovery process can not be simulated；
It (3) is a fixed structure in existing simulator, between die body and pedestal, but what this was fixed Structure limits the scope of application of model, i.e., for a model, presets for simulating what kind of well pattern It is just merely able to simulation this type, can not surpass and go beyond the scope, this is clearly unscientific.
Summary of the invention
In order to overcome the shortcomings of that prior art, the present invention provide a kind of gas hydrates exploitation imitative experimental appliance Rotating device, compare the production performance feature of hydrate under the conditions of different well pattern modes, well spacing density, optimized well pattern exploitation side Case greatly expands research range, can effectively solve the problem of background technique proposes.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of rotating device of gas hydrates exploitation imitative experimental appliance, including model support pedestal, and installation Model ontology on model support pedestal is additionally provided with the whirler of driving model ontology rotation on the model support pedestal Structure is additionally provided with the retaining mechanism for keeping heeling condition stability, the upper end table of the model ontology on the model ontology Face is equipped with model well pattern；
The rotating mechanism includes two servo motors for being mounted on model support base upper surface, two servo electricity The output shaft of machine is connected with driving gear, and the side of the model support pedestal sets that there are two support post, two supports It is equipped with smooth circular perforation at the top of column, is fixedly installed with straight trip fixed pole across two smooth circular perforation, it is described straight It is set in row fixed pole there are two major diameter arc panel parallel with model ontology front and rear panel respectively, two major diameter arc panels are equal By rolling bearing around straight trip fixed pole rotation, the marginal position and the driving intermeshing tooth form of gear of the major diameter arc panel Item, the tooth form item drive major diameter arc panel by the intermeshing with driving gear, two major diameter arc panels Lateral surface be respectively equipped with promotion stock, two ends for pushing stocks are separately mounted to the front and rear panel of the model ontology On center, and each both ends for pushing stock are rotated rotating around model ontology and major diameter arc panel.
Further, the straight trip fixed pole is equipped with and the integrated evagination of fixed pole of keeping straight in the two sides of major diameter arc panel Annulus, the lower end of the evagination annulus are equipped with cutting interior-type groove, are hinged in the cutting interior-type groove around evagination The lower end of the limit stock of annulus rotation, the limit stock is equipped with wear-resistant slide block, sets along the promotion stock long axis direction There is a smooth track, the wear-resistant slide block can be along moving inside smooth track.
Further, the model ontology include be rectangular-ambulatory-plane frame plate, and setting rectangular-ambulatory-plane lower portion and with The parallel variable-pressure plate of rectangular-ambulatory-plane frame plate upper and lower plates, the bottom of the rectangular-ambulatory-plane frame plate are equipped with to push and move down on the variable-pressure plate Dynamic force cylinder, the outer ring of the variable-pressure plate is equipped with the pressurization rubber ring for improving leakproofness, far from the servo motor Rectangular-ambulatory-plane frame plate side plate bottom is hinged on the model support base upper surface.
Further, the front and rear sides of the rectangular-ambulatory-plane frame plate are fixedly installed with angle vertical plate, and the angle is hung down The edge of straight panel is equipped with the graduation mark of 0 °~90 ° angular ranges, and the inside of the angle vertical plate is equipped with convenient for observation rectangular-ambulatory-plane The hollow out observation panel of frame plate tilt angle.
Further, the upper surface of the model support pedestal is equipped with vertically rotates for reducing rectangular-ambulatory-plane frame plate Snubber elastomeric pad.
Further, the retaining mechanism includes the locking sleeve of two plates before and after rectangular-ambulatory-plane frame plate is arranged in, the lock The side of fixed cylinder is connected with swingle, and the locking sleeve is separately positioned on two of two plates of rectangular-ambulatory-plane frame plate front and back vertically On the center of side, the swingle can be rotating around the vertical edges lower rotation of two plates before and after rectangular-ambulatory-plane frame plate, the locking The inside of sleeve is equipped with locking screw rasp bar, sets that there are two parallel with two plates before and after rectangular-ambulatory-plane frame plate on the model support pedestal Positioning strip, along it is described positioning strip long axis be equipped with several equally distributed threaded holes.
Further, the upper and lower ends of the locking screw rasp bar are equipped with thread segment, the spiral shell of locking screw rasp bar upper end Line section and locking sleeve are realized by threaded engagement locks, and the thread segment and threaded hole of locking screw rasp bar lower end pass through screw thread Locking is realized in occlusion.
Further, each surface of the rectangular-ambulatory-plane frame plate is equipped with several equally distributed temperature sensor interfaces And pressure sensor interface, each surface of the rectangular-ambulatory-plane frame plate are additionally provided with the electric resistance sensor of several reflection heat injection temperature Electrode, table in the temperature sensor interface, pressure sensor interface and the corresponding rectangular-ambulatory-plane frame plate of electric resistance sensor electrode Installation positioning spiro pit is equipped on face.
Further, each temperature sensor interface, pressure sensor interface and electric resistance sensor electrode are corresponding Interior-type groove is equipped on rectangular-ambulatory-plane frame plate outer surface, the interior-type groove has been connected through a screw thread sealing rubber pad.
Further, the variable-pressure plate is equipped with buffer fluid flow velocity and absorbs the bottom water chamber of impact energy, the bottom water Chamber is equipped with several equally distributed water injection holes, and the position of the water injection hole and the lower well point of model well pattern vertically match pair one by one It answers.
Compared with prior art, the beneficial effects of the present invention are:
The present invention uses 3D modelling system, can be used in the space for studying temperature field in lanthanum chloride hydrate and decomposable process The spatial distribution of distribution and saturation field, and the rotation process that main body carries out 0~90 ° of direction will be simulated using rotating mechanism, In the identical situation of pressure and temperature environment, feelings are simulated in the exploitation of research straight well, inclined shaft and horizontal well pair gas hydrates Condition, compares the production performance feature of hydrate under the conditions of different well pattern modes, well spacing density, optimized well pattern development plan, significantly Extend research range.
Detailed description of the invention
Fig. 1 is die body overall structure diagram of the present invention；
Fig. 2 is die body top structure schematic diagram of the present invention；
Fig. 3 is dirt band schematic diagram of a layer structure of the present invention；
Fig. 4 is rotating mechanism overall structure diagram of the present invention；
Fig. 5 is rotating mechanism side structure schematic view of the present invention；
Fig. 6 is angle vertical plate structural schematic diagram of the present invention；
Fig. 7 is locking mechanism schematic diagram when model ontology of the present invention rotation angle is smaller；
Fig. 8 is locking mechanism schematic diagram when model ontology of the present invention rotation angle is larger；
Fig. 9 is retaining mechanism overlooking structure diagram of the present invention；
Figure 10 is the one-dimensional long tube model system structural schematic diagram of the present invention；
Figure 11 is core holding unit structural schematic diagram of the present invention；
Figure 12 is the compensatory core barrel structural schematic diagram of the present invention；
Figure 13 is the open temperature maintenance device structural schematic diagram of the present invention；
Figure 14 is Pneumatic pressure compensation device structural schematic diagram of the present invention；
Figure 15 is injected system structural schematic diagram of the present invention；
Figure 16 is injected system present invention looks up structural representation of the present invention；
Figure 17 is valve rod rotational structure schematic diagram of the invention；
Figure 18 is the structural block diagram of control system of the present invention；
Figure 19 is apparatus of the present invention application method flow chart.
Figure label: 1- model support pedestal；2- model ontology；3- rotating mechanism；4- retaining mechanism；5- model well pattern； 6- evagination annulus；7- cuts interior-type groove；8- limits stock；9- wear-resistant slide block；10- smooth track；11- angle vertical plate； 12- graduation mark；13- hollow out observation panel；14- snubber elastomeric pad；15- temperature sensor interface；16- pressure sensor interface；17- Electric resistance sensor electrode；18- installs positioning spiro pit；19- interior-type groove；20- sealing rubber pad；21- bottom water chamber；22- note Water hole；23- rock core simulates chamber；24- displacement pressure supply room；25- high pressure bushing；26- floating inner piston；27- displacement room；28- Pneumatic pressure float chamber；The compensatory core barrel of 29-；30- core holding unit；The open temperature maintenance device of 31-；32- Pneumatic pressure Force compensating device；33- simulated formation pressure injection systems；34- displacement pressure injected system；35- switch mark is carved characters；36- note Water tank；37- water segregator；38- filling pipe；39- primary water pressure gauge；40- blower pump for pipeline；41- injects water pressure gauge；42- on-off Control valve；43- flow monitor；44- driving motor；45- rotation direction indicator；
201- rectangular-ambulatory-plane frame；202- variable-pressure plate；203- force cylinder；204- is pressurized rubber ring；205- high pressure tempering glass Glass；206- simulated formation；207- plasticity asthenosphere；208- dirt band layer；209- fluid injection pressurising transferring device；210- pressurising guiding Pipe；211- Reservoir Body；
207A- semi plastic deformation layer；The hydraulic top plate of 207B-；
209A- buffer air bag；209B- fluid injection pressurising room；209C- separating tube arranged side by side；209D- filling liquid distribution cavity；209E- fills Liquid connecting column；
301- servo motor；302- drives gear；303- support post；The perforation of 304- smooth circular；305- straight trip fixed pole； 306- major diameter arc panel；307- rolling bearing；308- tooth form item；309- pushes stock；
401- locking sleeve；402- swingle；403- locking screw rasp bar；404- positions strip；405- threaded hole；406- spiral shell Line section；
501- note adopts pedestal；502- injection-production well pipe；503- sensor probe；504- inclined shaft well casing；505- horizontal well well casing；
2701- pressure control pipe；2702- damper tube；
2901- jacks pedestal；2902- length compensator；2903- spiral pedestal；2904- compensates bar；2905- raises seat；
3001- air-tightness sleeve；3002- pushes plug；3003- ring-type wave bank line；3004- hard reset spring；3005- pressure Power bumper post；3006- annular is oriented to substrate；3007- guide rod；3008- torque pedestal；3009- sleeve column；
3101- heat-radiation heat-dissipating piece；3102- thermal cycle inlet pipe；3103- thermal cycle return pipe；3104- gas heater； 3105- regulating valve；3106- combustion gas supplement pipe；3107- temperature control device；Air pump is recycled in 3108-；3109- gate valve；3110- is non-return Valve；
Pressure base in 3201-；3202- overhead-valve；3203- is embedded sleeve；3204- pneumatic control valve core；3205- piston Bar；3206- sliding sleeve；3207- piston boit；3208- high pressure gas channel；
3301- is balanced between high pressure generation；3302- balances pressure booster pump；3303- extraction conduit；3304- negative pressure turbine Slurry；3305- conveyance conduit；3306- primary pressure gauge；3307- two-stage pressurizing pump；3308- flow control controlling valve；3309- balance note Enter air gauge；3310- controlled valve；
3401- exploitation distribution adds between water；3402- gas extraction booster pump；3403- piston water injection booster pump；3404- summarizes Pipeline；3405- negative pressure turbine slurry；3406-, which draws water, to be in charge of；3407- pumping is in charge of；3408- gas injection case；The anti-oxidant pipeline of 3409-； 3410- level-one air gauge；3411- continuous pressure pump；3412- exploitation injection air gauge.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of gas hydrates to develop imitative experimental appliance, including mutually independent 3D modelling system and one-dimensional long tube simulation system, wherein 3D modelling system is made of die body and rotating mechanism, in mould It is provided with injected system in type main body, which is divided into including simulation system strata pressure injected system and displacement pressure note Enter system.
Among the above, three-dimensional simulation system is to realize that three-dimensional note adopts simulation, in the present invention itself obvious advantage is that True primal environment can be simulated according to the practical geologic parameter for being modeled stratum, and note is reproduced based on primal environment Adopt process.In addition, one-dimensional long tube simulation system is tested the real seepage flow performance for adopting rock core, grasps hydrate formation and seep Saturating rate and saturation degree relationship and water and object decompose the influence to in-place permeability, can simulate under different condition mud filtrate invasion to water The influence for closing object stratum conductive characteristic, to really reproduce development process by the simulation process on both macro and micro.
The simulator includes mutually independent 3D modelling system and one-dimensional long tube simulation system, the threedimensional model system System includes model support pedestal 1, and die body 2 is equipped on model support pedestal 1, is also set on the model support pedestal 1 It is equipped with the rotating mechanism 3 rotated for driving model main body 2, and is additionally provided on the model ontology 2 for keeping inclination The upper end face of the retaining mechanism 4 of state stability, the model ontology 1 is equipped with model well pattern 5.
The die body 2 includes Back Word type frame plate 201, is equipped with and its upper and lower plates in the Back Word type frame plate 201 Parallel variable-pressure plate 202, the bottom of the rectangular-ambulatory-plane frame plate 201 are equipped with the force for pushing the variable-pressure plate 202 to move up and down Cylinder 203, the outer ring of the variable-pressure plate 202 are equipped with the pressurization rubber ring 204 for improving leakproofness.
In addition, being provided with transparent high pressure tempered glass 205, the high pressure in 201 inner surface of Back Word type frame plate Several groups simulated formation 206 is disposed with by bottom to top in tempered glass 205, is equipped in the simulated formation 206 certainly Right texture, and transition fascicule is equipped between adjacent every group of simulated formation 206.
In the present invention, it needs to illustrate, which is direct according to the geologic parameter for being modeled region It is simulated, simulation method particularly includes:
The simulated formation is grouped as by the gradation particle silt group for being modeled region, and preparation method includes as follows Step:
Step 101 is obtained the component for being modeled regional stratum, grain composition by earthquake and well-log information and is joined with transitivity Number；
Step 102 is mixed by glue using the silt of identical grain composition based on above-mentioned parameter, and is being set Natural texture in simulated formation and the transition fascicule positioned at boundary；
Step 103 makes whole simulated formations according to above-mentioned steps are synchronous, is synchronized and is put into high pressure steel glass It is interior, molding pressure is determined according to physical parameter and variable-pressure plate is driven to be compacted it.
At least divide in above-mentioned steps, in each group simulated formation 2 times and be packed into the silt mixed according to particle rank, and every Grouping carries out pre-compacted in group simulated formation, and the number of pressurization is no less than 3 times by several times.
Based on the above method, can with it is not difficult to find that the simulated formation can simulate completely is modeled the geological structure in region, Simultaneously, relative to conventional simulation device, in terms of outstanding feature is following two: on the one hand by accurate mould The geological condition of quasi- this area, the note that the region can be more accurately studied based on the geologic modelling adopt situation, are practical Exploitation provide fundamental basis；In addition, remaining original due to using pre-compacted, the mode of rear integral die is first arranged Can also generate some unpredictable situations under the premise of having geologic(al) factor, and the appearance of this kind of situation, can deeper into The structure being derived according to stress variation is simulated, there is more actual directive significance, overcome existing simulation is merely Simulate some factors and simulated, it is believed that evaded complicated stress factors so that analog result may not apply to reality The defect on border.
Variable-pressure plate 202 positioned at top plate and between the simulated formation 206 positioned at top be equipped with plasticity asthenosphere 207, and It is equipped with dirt band layer 208 in the simulated formation 206 or between adjacent analog stratum 206, in the dirt band layer 208 It is fixedly installed with fluid injection pressurising transferring device 209, several is connected on the fluid injection pressurising transferring device 209 and sets independently of each other Set the pressurising guide pipe 210 in different simulated formations 206, wherein random point is provided on the interface of the simulated formation 206 The Reservoir Body 211 of cloth.
The Reservoir Body 211 is pre- by glue according to the component, grain composition and physical parameter on the stratum of simulated domain It is first pressed and molded, and microcrack and tomography is arranged after compression molding according to the geological structure of simulated domain.
In the present invention, another is characterized in that dynamically simulating subsurface pressure better than conventional simulation device, By the cooperation of injected system and fluid injection pressurising transferring device, otherness can be formed in the different zones in simulated formation 206 Pressure, and match the maintenance of resultant pressure so that the pressure inside stratum be in heterogeneous, the state of dynamic equilibrium, and this Heterogeneity, dynamic equilibrium can be by artificially controlling, and what can more be bonded meets practical geological conditions, so that mould Quasi- effect further meets actual effect.
The simulation well pattern 5 includes that grid-shaped equally distributed note is arranged on rectangular-ambulatory-plane frame plate 201 to adopt pedestal 501, the note adopts the injection-production well pipe 502 for being fixedly installed on pedestal 501 and sequentially passing through variable-pressure plate 202 and plasticity asthenosphere 207, It is provided with equally distributed sensor probe 503 in the injection-production well pipe 502, and is provided with tiltedly on the injection-production well pipe 502 Well well casing 504 and horizontal well well casing 505.
The fluid injection pressurising transferring device 209 includes the buffer air bag 209A being arranged in dirt band layer 208, the buffering gas Several mutually independent fluid injection pressurisings room 209B is classified as by several groups partition in capsule 209A, and in the fluid injection pressurising It is connected between the 209B of room by sequentially connected injection catheter, pressure control check valve, the pressurising is equipped on the injection catheter Guide pipe 210 is connect by separating tube 209C arranged side by side with the fluid injection pressurising room 209B for being located at least significant end.
The separating tube 209C arranged side by side includes filling liquid distribution cavity 209D, if being fixedly installed on the filling liquid distribution cavity 209D Dry mutually independent filling liquid connecting column 209E, the filling liquid connecting column 209E are connected to pressurising guide pipe 210 respectively, and every Pressure control make-up valve is provided in a filling liquid connecting column 209E, the pressure control make-up valve is equipped with and extends into pressurising guide pipe 210 Interior pressure sensor is equipped with one group for pressurising guide pipe 210 is fixed every same distance on the pressurising guide pipe 210 Button is inlayed in simulated formation, and is equipped with two groups in the end for being located at pressurising guide pipe 210 and cross one another is inlayed button.
In the present embodiment, by the way that above structure feature is arranged, the pressure that injected system is given is in the dress It sets internal holding one to stablize for a long time, that is to say, that the device can guarantee what the strata pressure of punching note was set in one Original steady-state can not need to rush injection pressure power again in the later period of simulation, and due to the process of later period simulation exploitation, ground Stressor layer is constantly reduced, and the slow supplement of pressure can be made by the pressure buffer ability of the device, to simulate reality The state of border high pressure harvesting.
207 surface of plasticity asthenosphere is provided with ground in uneven thickness semi plastic deformation layer 207A, and moulds described half The hydraulic top plate 207B for being used to support semi plastic deformation layer 207A, the hydraulic top plate are equably provided in property deformation layer 207A The other end of 207B is fixedly mounted on the upper plate inner surface of rectangular-ambulatory-plane frame plate 201.It is special by the structure on Optimized Simulated stratum 206 Sign after carrying out preparatory compacting, then by above structure, can make plastic construction form pleat when integral die Wrinkle, rigid structure form tomography etc., in the different stress state of simulated formation internal simulation.
The rotating mechanism 3 includes two servo motors 301 for being mounted on 1 upper surface of model support pedestal, described in two The output shaft of servo motor 301 is connected with driving gear 302, and the side of the model support pedestal 1 is set there are two support post 303, it is equipped with smooth circular perforation 304 at the top of two support posts 303, passes through two smooth circulars perforation 304 It is fixedly installed with straight trip fixed pole 305, sets that there are two parallel with 2 front and rear panel of model ontology big respectively in the straight trip fixed pole 305 Diameter arc panel 306, two major diameter arc panels 306 are rotated by rolling bearing 307 around straight trip fixed pole 305, described The marginal position of major diameter arc panel 306 and the driving intermeshing tooth form item 308 of gear 302, the tooth form item 308 by with The intermeshing of gear 302 is driven to drive major diameter arc panel 306, the lateral surface point of two major diameter arc panels 306 Stock 309 She You not be pushed, two ends for pushing stock 309 are separately mounted in the front and rear panel of the model ontology 2 On heart position, and each both ends for pushing stock 309 are rotated rotating around model ontology 2 and major diameter arc panel 306.
The straight trip fixed pole 305 is equipped with and the integrated evagination of fixed pole 305 of keeping straight in the two sides of major diameter arc panel 306 Annulus 6, the lower end of the evagination annulus 6 are equipped with cutting interior-type groove 7, be hinged in the cutting interior-type groove 7 around The lower end of the limit stock 8 that evagination annulus 6 rotates, the limit stock 8 is equipped with wear-resistant slide block 9, along the promotion stock 309 Long axis direction is equipped with smooth track 10, and the wear-resistant slide block 9 can move inside smooth track 10.
The front and rear sides of the rectangular-ambulatory-plane frame plate 201 are fixedly installed with angle vertical plate 11, the angle vertical plate 11 edge is equipped with the graduation mark 12 of 0~90 ° of angular range, and the inside of the angle vertical plate 11 is equipped with convenient for observation rectangular-ambulatory-plane The hollow out observation panel 13 of 201 tilt angle of frame plate.
The upper surface of the model support pedestal 1 is equipped with the buffering vertically rotated for reducing rectangular-ambulatory-plane frame plate 201 Elastic cushion 14.
The retaining mechanism 4 includes the locking sleeve 401 that 201 two plates of front and back of rectangular-ambulatory-plane frame plate are arranged in, the locking The side of sleeve 401 is connected with swingle 402, and the locking sleeve 401 is separately positioned on 201 two plates of front and back of rectangular-ambulatory-plane frame plate Two vertical edges centers on, the swingle 402 can be rotating around the vertical edges bottom of two plates of the front and back of rectangular-ambulatory-plane frame plate 201 Portion's rotation, the inside of the locking sleeve 401 are equipped with locking screw rasp bar 403, set on the model support pedestal 1 there are two with return The parallel positioning strip 404 of 201 two plates of front and back of glyph framework plate is equipped with several equal along the long axis of the positioning strip 404 The threaded hole 405 of even distribution.
The upper and lower ends of the locking screw rasp bar 403 are equipped with thread segment 406, the spiral shell of 403 upper end of locking screw rasp bar Line section 406 and locking sleeve 401 are realized by threaded engagement locks, the thread segment 406 and spiral shell of 403 lower end of locking screw rasp bar Pit 405 is realized by threaded engagement and is locked.
Each surface of the rectangular-ambulatory-plane frame plate 201 is equipped with several equally distributed temperature sensor interfaces 15 and pressure Force snesor interface 16, each surface of the rectangular-ambulatory-plane frame plate 201 are additionally provided with the resistance sensing of several reflection heat injection temperature Device electrode 17, the temperature sensor interface 15, pressure sensor interface 16 and the corresponding rectangular-ambulatory-plane of electric resistance sensor electrode 17 Installation positioning spiro pit 18 is equipped on 201 inner surface of frame plate.
Each temperature sensor interface 15, pressure sensor interface 16 and the corresponding Back Word of electric resistance sensor electrode 17 Interior-type groove 19 is equipped on 201 outer surface of shape frame plate, the interior-type groove 19 has been connected through a screw thread seal rubber Pad 20.
As one of embodiment, the variable-pressure plate 202 is equipped with buffer fluid flow velocity and absorbs impact energy Bottom water chamber 21, the bottom water chamber 21 are equipped with several equally distributed water injection holes 22, the position of the water injection hole 22 and model well Vertically matching corresponds to one by one for the lower well point of net 5.
In addition, one-dimensional long tube model system in the present invention includes that rock core simulates chamber 23 and displacement pressure supply room 24, It is equipped with high pressure bushing 25 on rock core simulation 23 inner wall of chamber, and passes through floating inner piston inside rock core simulation chamber 23 26 points are displacement room 27 and Pneumatic pressure float chamber 28, pass through compensatory core barrel 29 inside the displacement room 27 and are equipped with rock core The effect of clamper 30, the compensatory core barrel 29 is, can pass through compensation machine when the rock core length of actual samples is inadequate Structure supplements the length defect of rock core, can be to avoid the survey for needing artificially to prepare rock core when rock core length by the way that the device is arranged Defect is tried, so as to simplify whole operating process, can also avoid artificially manufacturing influence of the rock core to test structure, in institute It states displacement room 27 and 28 side of Pneumatic pressure float chamber is respectively arranged with open temperature maintenance device 31 and Pneumatic pressure compensation Device 32.
The compensatory core barrel 29 includes the jacking pedestal 2901 being fixedly mounted on 27 two sides inner wall of displacement room, described Length compensator 2902 is fixedly installed on jacking pedestal 2901, the length compensator 2902 is by being fixedly mounted on jacking bottom It spiral pedestal 2903 on seat 2901 and is made up of the compensation bar 2904 that screw thread and spiral pedestal 2903 are connected, passes through tune The length of whole occlusion can integrated regulation compensation bar 2904 development length, thus achieve the purpose that compensate rock core length, it is described Compensation 2904 other end of bar, which is fixedly installed with, raises seat 2905.
In the present invention it should be further noted that by using the compensatory core barrel 29 in present embodiment, Effect is two aspects: firstly, conventional compensation mechanism be by it is pneumatic or it is hydraulic realize length adjustment, there are also be exactly It is realized by way of interior bar or outer bar, and realizes compensation by the multi-direction interlocking of screw thread in the present invention, It can be to avoid the influence due to caused by high pressure in simulation process；Secondly, the threaded engagement structure in present embodiment Different from conventional occlusion structure, main difference is with spiral pedestal 2903, which realizes that the multi-direction of screw thread stings Cooperation is used, so that compensation bar 2904 be free to fix in random length, without by simulated high-pressure Influence.
The core holding unit 30 includes air-tightness sleeve 3001, and 3001 both ends of air-tightness sleeve are equipped with slidable Push plug 3002, it is described to push 3002 inside of plug in hollow round table-like, and fill in be fixedly installed in 3002 in promotions and be in Stair-stepping ring-type wave bank line 3003, is fixedly installed with hard reset spring 3004 at cyclic annular 3003 center of wave bank line, described to push away It is dynamic to fill in 3004 and raise between seat 2905 through the connection of pressure buffer column 3005.By being located at the cyclic annular wave bank pushed in plug 3002 Line 3003 can fasten by core grouting, prevent loosening and positioning, and in the hard reset spring 3004 of setting and pressure The prototype structure that can protect rock core under the mating reaction of power bumper post 3005 is not influenced by the effects of mechanical collision.
The pressure buffer column 3005 includes being respectively and fixedly installed to that plug 3002 and the annular raised on seat 2905 is pushed to lead To substrate 3006, it is equipped with corresponding location hole at two annular guiding 3006 edges of substrate, in every group of corresponding positioning It is connected between hole by the guide rod 3007 being arranged, and passes through screw thread at 3007 both ends of guide rod and gripping nut is installed, It is provided with the torque pedestal 3008 being attached on annular guiding substrate 3006 between two annular guiding substrates 3006, and at two It is fixedly installed with mutual corresponding sleeve on torque pedestal 3008, is connected between the sleeve by slidable sleeve column 3009 It connects.The effect of the pressure buffer column 3005 is not only to protect rock core, but also can balance out the effect of the shearing forces such as torque, Due in the simulation that conventional core is tested, it will usually since the pressure of entrance is uneven or the uncontrollability in direction, cause High pressure directly destroys rock core structure or generates shearing force when simulated high-pressure displacement to destroy clamping and the inside of rock core Structure.
Open temperature maintenance device 31 can make temperature control in larger range, but also can be with The adjustment of temperature is flexibly carried out according to demand, and can be more energy efficient in Open Control in the present embodiment.Specifically , the open temperature maintenance device 31 includes the heat-radiation heat-dissipating piece 3101 for being located at 27 surface of displacement room, the heat radiation 3101 both ends of cooling fin are connected separately with thermal cycle inlet pipe 3102 and thermal cycle return pipe 3103, and in thermal cycle inlet pipe 3102 and heat The junction of circulation return pipe 3103 is provided with gas heater 3104, and the gas heater 3104, which is equipped with, passes through adjusting Valve 3105 is equipped with combustion gas and supplements pipe 3106, is respectively arranged with temperature at the port of thermal cycle inlet pipe 3102 and thermal cycle return pipe 3103 Control device 3107 and interior circulation air pump 3108, the other end of the temperature control device 3107 are connected with regulating valve 3105.
It should be further noted that the temperature of conventional model controls, it is that control is realized by water bath with thermostatic control and heating tank Temperature, but combine common sense it is found that the accurate control of temperature is difficult to realize only by above structure, this is because: constant temperature Water-bath is able to maintain the fluctuation of temperature in a certain range really, but this be only it is semi-open for one semiclosed or For one open space, and for structure totally enclosed for one, due to water bath with thermostatic control and needs temperature and tie up Water holding bathes the temperature of itself, it is therefore necessary to which continual heating will will lead to the slow raising of temperature in this way, and compare It in file, has also related to and has directly been heated by heating tank, and entered in threedimensional model after heat exchange, increased again in this way Temperature control is unstable, inaccuracy factor.Therefore, conventional simulation device carries out temperature control using the above method and is merely able to simulation very Temperature under real environment, and true environment under physico chemical factor be there is biggish fluctuation, and measure obtain data be also There are errors, cannot get the effect of strict control precision, are merely able to simulate an approximate fluctuation range.
Above-mentioned temperature maintenance device in the present invention, the control for temperature are existing open heating devices, are also had Open cooling device, the temperature inside thermostatic chamber, which raises and reduces, to be controlled by opening system, and according to Technical solution of the present invention: its open system is thermal cycle inlet pipe 3102 and thermal cycle return pipe 3103 respectively.By above-mentioned Open control mode can accurately control the temperature of its thermostatic chamber, to reach the temperature requirements in model process.
It is also fixedly installed with gate valve 3109 and check (non-return) valve 3110 on the combustion gas supplement pipe 3106, the regulating valve 3105 is set Between gate valve 3109 and check (non-return) valve 3110, the gate valve 3109 is connected with analytic tube and supply bottle by two points of conduits.
The Pneumatic pressure compensation device 32 includes interior pressure base 3201 and overhead-valve 3202, the interior pressure base 3201 By being closed being connected to form one of stake structure between overhead-valve 3202, and set between interior pressure base 3201 and overhead-valve 3202 It is embedded sleeve 3203, the sleeve 3203 that is embedded is provided with pneumatic control valve core 3204, in the pneumatic control valve core 3204 It is arranged with the piston rod 3205 across overhead-valve 3202, sliding sleeve 3206, the cunning are installed at the top of the overhead-valve 3202 Axially slidable piston boit 3207 is equipped in moving sleeve 3206, the piston boit 3207 is fixedly mounted on the top of piston rod 3205 Portion, and the conducting tube being connected to Pneumatic pressure float chamber 28 is equipped at the top of the sliding sleeve 3206.
Two sections of high pressure gas channels 3208 in Z-shaped, height described in two sections are equipped with inside the interior pressure base 3201 Pressure gas passage 3208 is connected separately with high-pressure pump and Pneumatic pressure float chamber 28, and the sleeve 3203 that is embedded is located at two height The junction of gas passage 3208 is pressed, and the communication port in two sections of high pressure gas channels 3208 is respectively at the side wall of sliding sleeve 3206 And bottom, and the pneumatic control valve core 3204 just closes two communication ports when being located at bottommost.
In Pneumatic pressure compensation device 32 provided by the invention, high-pressure pump is equivalent to above-mentioned displacement pressure supply Room 24, the supplement of pressure is the process of a self-compensating in fact in the device, be a self-control pressure stable state it is flat Balance system, specific process are as follows:
The pressure provided by displacement pressure supply room 24 forms the logical of a pressures cycle by high pressure gas channel 3208 Road, and displacement room 27 then controls the activity of piston rod 3205 by piston boit 3207, it is living when the pressure abundance in displacement room 27 Piston rod 3205 is pressed downward by the effect that stick harness 3207 is under pressure, to close the communication port in high pressure gas channel 3208, is made Pressure can not supplement displacement room 27, and once when the insufficient pressure in displacement room 27, piston boit 3207 by Displacement pressure, which is less than, resets pressure, will pull up piston rod 3205 in the effect of the two pressure differences, to open high pressure gas The communication port in body channel 3208, so that pressure supplements displacement room 27, until reaching original dynamic equilibrium, i.e., at this As long as pressure has a little abnormal balanced action that can realize pressure by self-control effect, therefore, displacement room in the process Under 27 pressure under the action of self-control always in setting, corresponding displacement operation is completed from the beginning to the end.
In the present invention, can also further illustrate, in the technical scheme, with regard to the adjustment of pressure, also have with Lower technical characteristic is respectively equipped with compression valve and rebound valve in two pressure control pipes 2701, and in two pressure control pipes The damper tube 2702 of connection displacement room 27 and displacement pressure supply room 24 is equipped between 2701, which has been Explosion-proof is arrived, i.e., will open corresponding pressure control pipe 2701 when real-time pressure reaches critical value on demand, and damper tube 2702 effect is then the adjustment effect for playing micro-balance, i.e., under damping action, pressure putting down from high pressure to low pressure always Diffusion makes so that this pressure balance is constantly destroyed, and is carried out the supplement of pressure by Pneumatic pressure compensation device 32 Obtain the case where whole process is in dynamic equilibrium forever, is better able to real simulation actual pressure displacement.
A kind of injected system of gas hydrates exploitation imitative experimental appliance, including simulation system strata pressure injection system System and displacement pressure injected system, the simulated formation pressure injection systems are filled by built-in conducting tube and fluid injection pressurising transfer Set connection, the displacement pressure injected system is directly arranged in note and adopts on pedestal, simulated formation pressure injection systems 33 to simulation this Injection gas or gas in vivo improve and simulate intrinsic air pressure, until pressure reaches gas hydrates balance and stability and deposits Hyperbaric environment, and displacement pressure injected system 34 is provided for natural gas extraction for keeping or restore natural gas reservoir pressure There is very strong driving force, improve the pressure of natural gas, to improve the exploitation rate and recovery ratio of gas hydrates.
Wherein as an innovative point of present embodiment, simulated formation pressure injection systems 33 include that balance high pressure generates Between 3301, and be arranged in balance high pressure generate between balance pressure booster pump 3302 in 3301, the balance pressure booster pump 3302 air inlet pipe is connected with extraction conduit 3303, is equipped in the extraction conduit 3303 for pressurising medium to be drawn into balance Pressurising medium is drawn into balance pressure boost first by the negative pressure turbine slurry 3304 of pressure boost pump 3302, negative pressure turbine slurry 3304 Pump 3302, pressurising medium improve itself pressure under the action of balancing pressure booster pump 3302, in present embodiment, to model sheet When body is balanced high pressure injection, pressurising medium can be injection water or injection gas, and gas hydrates is kept to be stabilized Condition of high voltage.
The outlet pipe of balance pressure booster pump 3302 is connected with several conveyance conduits 3305, the balance pressure booster pump 3302 outlet pipe is equipped with the primary pressure gauge 3306 for detecting display air pressure, and primary pressure gauge 3306 predominantly detects pressurization and is situated between Matter can intelligently be read through the pressurized pressure of overbalance pressure booster pump 3302, pressure values.
The two-stage pressurizing pump 3307 that can produce different biasing strengths is respectively connected on each conveyance conduit 3305, it is described The outlet pipe of two-stage pressurizing pump 3307 is connect with the conducting tube for being built in model ontology, in the present embodiment, each conveyance conduit 3305 pressurization intensity is different, to simulate the pressure on the different storage stratum of gas hydrates, pressurising medium is most Final pressure is to carry out two through the collective effect of 3307 the two of overbalance pressure booster pump 3302 and two-stage pressurizing pump to high pressure and add by force The operation splitting of journey is pressed through, the working strength of balance pressure booster pump 3302 and two-stage pressurizing pump 3307 can be reduced, therefore is improved The service life of booster pump.
The pressurization frequency of two-stage pressurizing pump 3307 can be changed according to working strength, and there are a certain range of regulations, be increased Press controllable range wide, the exploitation situation under analog multiple groups different pressures, practicability is high, and each conveyance conduit 3305 It is pressurized intensity and 3307 collective effects, the need of each 3305 pressure of conveyance conduit is pumped by balance pressure booster pump 3302 and two-stage pressurizing Ask different, therefore two-stage pressurizing 3307 working strengths of pump of each conveyance conduit 305 are not also identical, guarantee conveyance conduit Pressure is had differences between 3305.
In addition to ensuring that conveyance conduit 3305 reaches Minimum requirements value, the maximum boost for balancing pressure booster pump 3302 is strong Degree should be not more than the minimum essential requirement pressure of pipeline punching press, such as conveyance conduit 3305 is filled with pressure point to hydrate storage layer Not Wei 5Mpa, 10Mpa and 15Mpa, then the maximum boost intensity for balancing pressure booster pump 3302 should be not more than 5Mpa.
Flow control controlling valve is equipped between the conducting tube that the two-stage pressurizing pumps 3307 outlet pipe and is built in model ontology 3308, balance injection air gauge 3309 and controlled valve are additionally provided between the flow control controlling valve 3308 and built-in conducting tube 3310, flow control controlling valve 3308 can complex equilibrium pressure boost pump 3302 and two-stage pressurizing pump 3307 work, realize to pressurization be situated between The pressure of matter adjusts, therefore balances the registration of injection air gauge 3309 by balance pressure booster pump 3302, two-stage pressurizing pump 3307 It is codetermined with balance injection air gauge 3309.
Based on above-mentioned, the course of work of present embodiment specifically: pumped using balance pressure booster pump 3302, two-stage pressurizing 3307 and flow control controlling valve 3308 common pressurized treatments are carried out to air, simulate the high-pressure balancing storage item of gas hydrates Part, and the air pressure of each conveyance conduit 3305 is mainly according to the different operating of two-stage pressurizing pump 3307 and flow control controlling valve 3308 Intensity and switch state and have differences pressure, conveyance conduit 3305 realize difference partial pressure before, use balance pressure boost Pump 3302 carries out pressurization pretreatment, reduces the working strength of two-stage pressurizing pump 307, prevents the operating pressure of two-stage pressurizing pump 307 It is excessive to be damaged, and two-stage pressurizing pump 3307 and flow control controlling valve 3308 can further increase simulation in regulation process The pressure of high-pressure balancing condition improves the modification scope of high pressure simulation, realizes the continuity pressurized treatment to hydraulic pressure or air pressure, Expand the high pressure range of simulation gas hydrates balance and stability.
As another innovative point of present embodiment, displacement pressure injected system 34 adds including exploitation distribution between water 3401, exploitation distribution is set and adds gas extraction booster pump 3402 in 3401 between water, and with gas extraction booster pump 3402 The piston water injection booster pump 3403 of independent parallel work, the gas extraction booster pump 3402 and piston water injection booster pump 3403 Inlet pipeline is connected with jointly summarizes pipeline 3404, it is described summarize also be provided in pipeline 3404 negative pressure turbine slurry 3405, the remittance The port bifurcated of total pipeline 3404 be connected with draw water be in charge of 3406 and pumping be in charge of 3407, the port that the pumping is in charge of 3407 connects It is connected to gas injection case 3408.
During methane is extracted in continuous exploitation, simulating intrinsic pressure is constantly reduced, according to simulation ontology itself High-pressure situations, methane cannot be acquired well, present embodiment utilizes water filling using the simulation of displacement pressure injected system 34 Or method of gas injection makes methane gas reservoir restore pressure, realizes secondary gas recovery, improves yield and recovery ratio, carries out secondary gas recovery, Prevent exploitation from not resulting in waste of resources completely.
Draw water be in charge of 3406 and pumping be in charge of on 3407 and be respectively equipped with on-off control valve 42, the gas extraction booster pump 3402 and piston water injection booster pump 3403 inlet pipeline on also be provided with on-off control valve 42, therefore in methane secondary recovery, The boost mode that the injecting gas boosting that can be used alone perhaps fills the water independent parallel realizes secondary gas recovery or by injecting gas boosting and water filling Pressurization, which is used in combination, carries out secondary gas recovery, reduces water filling cost and gas injection cost, while also increasing the pressure to acquisition layer, improves Improve yield and recovery ratio.
The outlet pipe of the gas extraction booster pump 3402 is connected with the continuous pressure pump 3411 that can produce persistent pressure, and And the escape pipe of the gas extraction booster pump 3402 is equipped with the level-one air gauge 3410 for detecting display air pressure, the company The escape pipe of continuous force (forcing) pump 3411 is adopted pedestal with the note for being built in model ontology by several anti-oxidant pipelines 3409 and is connect, and And flow control controlling valve 3308 also is provided on the anti-oxidant pipeline 3409, the flow control controlling valve 3308 and note are adopted between pedestal also Equipped with exploitation injection air gauge 3412 and controlled valve 3310, the escape pipe of the continuous pressure pump 3411 is equipped with switch mark Carve characters 35.
Described draw water is in charge of 3406 and is connected with water injecting tank 36, and the output end of the piston water injection booster pump 3403 is connected with can The blower pump for pipeline 40 of continuous pressure intensity is generated, and the outlet pipe of the piston water injection booster pump 3403 is equipped with for examining The primary water pressure gauge 39 of air pressure is surveyed, the outlet pipe of the continuous pressure pump 3411 is connected with several water injection pipes by water segregator 37 Road 38, the filling pipe 38 are adopted pedestal with the note for being built in model ontology and are connect, and also set on the filling pipe 38 There is flow control controlling valve 3308, the flow control controlling valve 3308 and the note for being built in model ontology, which are adopted, is additionally provided with injection water between pedestal Table 41 and controlled valve 3310 are pressed, switch mark also is provided on the outlet pipe of the blower pump for pipeline 40 and carves characters 35.
The pressurization of displacement pressure injected system 34 is similar with the pressurization of simulated formation pressure injection systems 33, It when injecting gas boosting, is once pressurized using gas extraction booster pump 3402, is then carried out using continuous pressure pump 3411 first Secondary booster, flow control controlling valve 3308 can be finely tuned pressurization three times, and pressurized pressure improves in simulation recovery process three times Injection pressure range, conclude the relationship between injection pressure intensity and production efficiency, yield convenient for test, while increasing using gas extraction Press pump 3402 carries out pressurization pretreatment, reduces the working strength of continuous pressure pump 3411, prevents the work of continuous pressure pump 3411 Pressure is excessive to be damaged, and continuous pressure pump 3411 and flow control controlling valve 3308 are realized in regulation process to air pressure Continuous Adjustment improves the pressure adjusting range exploited to methane, so that the natural gas under analog difference gas injection pressure is hydrated Object exploits situation.In addition the embodiment for filling the water pressurization is similar with injecting gas boosting, does not repeat them here in the present embodiment.
Additionally as preferred embodiment, flow control controlling valve 3308 is also associated with flow monitor 43, flow control controlling valve Driving motor 44 is connected with by transmission component on 3308 valve rod, and is equipped on the valve rod of the flow control controlling valve 3308 Rotation direction indicator 45, the escape pipe of two-stage pressurizing pump 3310 are equipped with switch mark and carve characters 35, the driving motor 44 can connect with control system, and the common state of flow control controlling valve 3308 is normally open, when needing flow control controlling valve 3308 auxiliary When force (forcing) pump being helped to carry out secondary pressurized or adjustment pressure sphere of action, driving motor drives the valve rod of flow control controlling valve 3308 to turn It is dynamic, pressure is changed by flow control, when pressure gauge reaches setting value, driving motor stops working, and flow control controlling valve 3308 is kept Current state.
3308 auxiliary pressurized of flow control controlling valve pump carries out secondary pressurized, expands the range of transformation adjustment, improves transformation adjustment Efficiency, to improve the working efficiency of entire simulated experiment.
In addition, the present invention provides a kind of gas hydrates to develop mould on the basis of being based on above-mentioned apparatus and system The control system of draft experiment device, including main processing controller, the different well pattern exploitation patterns of simulation well pattern difference control module, To the sensor module of the high-pressure balancing maintenance module of die body internal pressurization, monitoring model body interior pressure, Yi Jili Implement module with the secondary gas recovery of displacement ram recovery gas pressure, the well pattern difference control module, high-pressure balancing maintain Module, secondary gas recovery implement module and sensor module is connect with main processing controller.
Well pattern distinguishes the rotational angle that control module is used for Controlling model main body, and the practical gas hydrates of simulation are practical to be opened The height of straight well exploitation and inclined shaft exploitation in adopting, the simulation gas hydrates practical stability storage of high-pressure balancing maintenance module forces down The pressurization displacement operation for restoring gas pressure in module simulation practical operation, sensor module are implemented in temperature state, secondary gas recovery It predominantly detects high-pressure balancing maintenance module and the fluid injection pressurising state of module is implemented in secondary gas recovery, control the duration of pressurising.
Wherein, high-pressure balancing maintenance module includes collecting the balance pressure collector unit of simulated formation pressure injection systems, And the pressure regulation motor unit of control simulated formation pressure injection systems adjustment injection pressure, the balance pressure collector unit connect Balance note after being closed flat the primary pressurized primary air pressure gauge pressure values of weighing apparatus gas booster pump and two-stage pressurizing pump secondary booster Enter air pressure gauge pressure values, the main processing controller drives pressure regulation motor unit to adjust mould according to the pressure value after secondary booster The working strength of booster pump in pseudo-reservoir pressure injected system and the switch state of flow control controlling valve, until each appendix The injection pressure value in road reaches respective setting pressure values.
Each gas pipeline is connected with the fluid injection pressurising transferring device of specific position, and the gas pipeline and note of different pressure Liquid pressurising transferring device simulates uneven unbalanced pressure present in actual formation, due to the pressurization of each gas pipeline Demand is different, therefore the two-stage pressurizing pump work intensity on each pipeline is different.
The method of the high-pressure balancing maintenance module simulated formation pressure injection, specifically comprises the following steps:
Step S100, the pressure measuring value in master controller receiving balance pressure collection unit, including balance pressure boost It pumps the balance on pressurized primary pressure gauge measured value and each conveyance conduit after two-stage pressurizing pump pressurization and injects gas Press table measured value.
Step S200, the strata pressure under different pressures value is tested, the pressure value of simulated formation pressure injection, pressure regulation are increased The working strength of motor unit increase balance pressure booster pump and two-stage pressurizing pump, until in sensor module detection model main body Pressure value reach setting value.
Especially, it should be noted that pressurization twice is pumped using balance pressure booster pump and two-stage pressurizing, to demand pressure Power carries out secondary pressure decomposition, can reduce the working strength of balance pressure booster pump and two-stage pressurizing pump, but by each institute The pressurization demand for stating gas pipeline is different, therefore the maximum boost intensity of balanced gas booster pump is no more than in gas pipeline Minimum pressure value, guarantee the steady implementation of minimum fluid injection punching operation.
Step S300, the pressure value of simulated formation pressure injection is continued growing, pressure regulation motor unit increase balance second level adds The working strength of press pump, until the intracorporal pressure value of sensor module detection model master reaches setting value.That is, when balance When the working strength of gas booster pump reaches maximum boost intensity, can while and it increase the working strength that balance two-stage pressurizing pumps And reduce the per unit throughputs of flow control controlling valve, reach the setup pressure value of die body, auxiliary two-stage pressurizing pump persistently adds Work is pressed, the work labor degree of two-stage pressurizing pump is reduced, while improving the Pressure rise rates of fluid injection punching press, improves simulated experiment Efficiency.
Well pattern exploitation pattern is divided into straight well net and inclined shaft net both of which, and the well pattern difference control module includes that setting exists Angle tilt detection unit and die body on the outer seamed edge of die body rotate implementation unit, the angle tilt detection The die body angle value that unit receiving angle tilt detection unit detects, and main processing controller driving rotation is real Unit force is applied on die body, die body is pushed to turn to setting tilt angle, the rotation of die body, analog is straight Well pattern and inclined shaft net both of which increase the practicability of simulation system, improve experiential function.
The injection way that module is implemented in secondary gas recovery is divided into individually water filling, independent gas injection and water filling gas injection and combines three kinds of moulds Formula, the independent water filling or individually gas injection mode are single medium injection, and water filling gas injection binding pattern, which is that double media are unified, to be injected, It includes control valve unit, the exploitation water pressure data for selecting to be in charge of water filling and gas injection mode that module is implemented in the secondary gas recovery Collector unit, hydraulic pressure adjustment implementation unit, exploitation barometric information collector unit and air pressure adjust implementation unit.
The secondary gas recovery implements module using single medium injection simulation displacement pressure method for implanting, specifically includes following step It is rapid:
Step T101, after selected single medium injection way, waterflood path in master controller closing control valve unit or Person's gas injection channel；
Step T102, exploitation barometric information collector unit collects gas extraction booster pump once pressurized level-one air gauge Air gauge data are injected in exploitation after data and continuous pressure pump secondary booster, or exploitation hydraulic pressure data collection module is received Injection hydraulic pressure after collecting the primary pressurized primary water pressure gauge data of piston water injection booster pump and blower pump for pipeline secondary booster Table data.
Step T103, the described main processing controller receives exploitation barometric information collector unit and exploitation hydraulic pressure data collection list The pressure value of member, and the main processing controller drives air pressure adjustment implementation unit or hydraulic pressure adjustment according to pressure data Implementation unit changes the pressurization intensity of two air pumps or two water pumps, until the intracorporal pressure of sensor module detection model master Value reaches setting value.
The secondary gas recovery implements module using double medium injection simulation displacement pressure method for implanting, specifically includes following step It is rapid:
Step T201, after selected double medium injection way, waterflood path or note in main controller controls valve unit Gas channel is fully open；
Step T202, exploitation barometric information collector unit collects gas extraction booster pump once pressurized level-one air gauge Air gauge data are injected in exploitation after data and continuous pressure pump secondary booster, and exploitation hydraulic pressure data collection module is received Injection hydraulic pressure after collecting the primary pressurized primary water pressure gauge data of piston water injection booster pump and blower pump for pipeline secondary booster Table data.
Step T203, the described main processing controller receives exploitation barometric information collector unit and exploitation hydraulic pressure data collection list The pressure value of member, and the main processing controller drives air pressure adjustment implementation unit and hydraulic pressure adjustment real according to pressure data The pressurization intensity that unit changes simultaneously two air pumps and two water pumps is applied, until the intracorporal pressure of sensor module detection model master Value reaches setting value.
Based on above-mentioned, the hydraulic pressure adjustment implementation unit and air pressure adjustment implementation unit also can adjust opening for flow control controlling valve Off status improves pressure injection efficiency by controlling the dielectric flux of unit time.
Based on whole device, the present invention also provides the application methods of the device, include the following steps:
The foundation and debugging of step 100, model establish die body according to the geologic parameter for being modeled region, and to building Vertical die body debug and rock core is put into one-dimensional long tube model.
In step 100, the simulated formation in die body is grouped as by the gradation particle silt group for being modeled region, and And preparation method includes the following steps:
Step 101 is obtained the component for being modeled regional stratum, grain composition by earthquake and well-log information and is joined with transitivity Number；
Step 102 is mixed by glue using the silt of identical grain composition based on above-mentioned parameter, and is being set Natural texture in simulated formation and the transition fascicule positioned at boundary；
Step 103 makes whole simulated formations according to above-mentioned steps are synchronous, is synchronized and is put into high pressure steel glass It is interior, molding pressure is determined according to physical parameter and variable-pressure plate is driven to be compacted it；
Reservoir Body and simulation well pattern is arranged in step 104 while die body is formed and is compacted, and in synchronous molding Built-in sensor and simulation well pattern are debugged after molding, until debugging is normal.
The filling of step 200, simulated formation pressure fills ground in die body by simulated formation pressure injection systems Stressor layer, and by the dynamic equilibrium of control system realization pressure, maintain the dynamic equilibrium.
In step 200, the specific steps of simulated formation pressure filling are as follows:
Pressure measuring value in step 201, master controller receiving balance pressure collection unit, including balance pressure booster pump Balance on pressurized primary pressure gauge measured value and each conveyance conduit after two-stage pressurizing pump pressurization injects air pressure Table measured value；
Strata pressure under step 202, experiment different pressures value, increases the pressure value of simulated formation pressure injection, pressure regulation The working strength of motor unit increase balance pressure booster pump and two-stage pressurizing pump, until in sensor module detection model main body Pressure value reach setting value；
Step 203, the pressure value for continuing growing the injection of simulated formation pressure, pressure regulation motor unit increase balance two-stage pressurizing The working strength of pump, until the intracorporal pressure value of sensor module detection model master reaches setting value.
Step 300, displacement simulation are intended displacement pressure filling progressive die according to design scheme by displacement pressure injected system Well pattern is changed the variation of displacement pressure by control system, and records displacement parameter by built-in sensor.
In step 300, the specific steps of the filling of displacement pressure are as follows:
After step 301, selected single medium injection way, waterflood path in master controller closing control valve unit or Gas injection channel；
Step 302, exploitation barometric information collector unit collect gas extraction booster pump once pressurized level-one air gauge Air gauge data are injected in exploitation after data and continuous pressure pump secondary booster, or exploitation hydraulic pressure data collection module is received Injection hydraulic pressure after collecting the primary pressurized primary water pressure gauge data of piston water injection booster pump and blower pump for pipeline secondary booster Table data.
Step 303, the main processing controller receive exploitation barometric information collector unit and exploitation hydraulic pressure data collection list The pressure value of member, and the main processing controller drives air pressure adjustment implementation unit or hydraulic pressure adjustment according to pressure data Implementation unit changes the pressurization intensity of two air pumps or two water pumps, until the intracorporal pressure of sensor module detection model master Value reaches setting value.
Rock core correction is arranged in core holding unit by compensatory core barrel for step 400, is tieed up by open temperature It holds device and Pneumatic pressure compensation device maintains the dynamic equilibrium of analog temperature and pressure.
In step 400, rock core is fixed on the specific steps in core holding unit by compensatory core barrel are as follows: measurement obtains The exact length of actual measurement rock core is taken, and delimit calibration point at rock core both ends along rock core axis, rotation is passed through according to the measured length Turn the length that compensation bar makes the length in core holding unit slightly larger than actual measurement rock core, by rock core along the axial direction of core holding unit It is placed in cyclic annular wave bank line, slow rotation compensation bar is until rock core is tightly secured between two circumferential wave bank lines, later Pressure buffer column is slowly twisted again, until the calibration point at rock core both ends is in again on same axis.
In step 400, the specific steps of equalized temperature are maintained in displacement room by open temperature maintenance device are as follows:
All valves on combustion gas supplement pipe are closed, start interior circulation air pump, so that open temperature maintenance device is in Without heating internal-circulation state；
Gate valve and check (non-return) valve are opened, and the flow of combustion gas is adjusted to by natural gas by the flow of minimum permission by regulating valve Heater igniting heating, until entire cyclic process is preheated；
It is after preheat that regulating valve is fully open, whole device is heated with maximum fire, human intervention is until temperature Cancel thinking to intervene after the lasting 3min or more of control device alarm and cool the temperature to hot spot, then by being inputted into temperature control device The temperature of setting passes through self adjusting to set temperature for inner cyclic process realization temperature；
It opens and the water-cooling system at gas heater both ends is set active cooling carried out to device, and by the function that actively cools down Rate be arranged in it is controllable stir in range, the dynamic equilibrium of temperature is realized by the feedback regulation of temperature control system.
In step 400, pressure balanced specific steps are maintained by Pneumatic pressure compensation device in displacement room are as follows:
Step 401 closes pressure control pipe and damper tube, and by high pressure gas channel be connected to displacement pressure supply room and Displacement room；
Step 402, human intervention overhead-valve, so that the indoor pressure of displacement reaches peak, pressure control pipe and damper tube It automatically opens, cancels human intervention and overhead-valve is in from state of a control.
Step 500, the temperature and pressure for changing simulation according to simulation demand, and pass through built-in sensor acquisition simulation Real time data.
Step 600, synchronous collection macroscopic view displacement parameter and microcosmic test result combine two groups of data point Analysis obtains analysis structure.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

Claims (10)

1. a kind of rotating device of gas hydrates exploitation imitative experimental appliance, it is characterised in that: including model support pedestal (1), and the model ontology (2) that is mounted on model support pedestal (1), driving is additionally provided on the model support pedestal (1) The rotating mechanism (3) of model ontology (2) rotation, is additionally provided with for keeping heeling condition stability on the model ontology (2) The upper end face of retaining mechanism (4), the model ontology (1) is equipped with model well pattern (5)；
The rotating mechanism (3) includes two servo motors (301) for being mounted on model support pedestal (1) upper surface, two institutes The output shaft for stating servo motor (301) is connected with driving gear (302), there are two the side of the model support pedestal (1) is set Support post (303), two support posts (303) tops are equipped with smooth circular perforation (304), pass through two light The perforation (304) that cuts a figure is fixedly installed with straight trip fixed pole (305), set on the straight trip fixed pole (305) there are two respectively with model The parallel major diameter arc panel (306) of ontology (2) front and rear panel, two major diameter arc panels (306) pass through rolling bearing (307) it is rotated around straight trip fixed pole (305), marginal position and driving gear (302) of the major diameter arc panel (306) are mutually nibbled The tooth form item (308) of conjunction, the tooth form item (308) is by the intermeshing with driving gear (302) to major diameter arc panel (306) it drives, the lateral surface of two major diameter arc panels (306), which is respectively equipped with, pushes stock (309), two promotions The end of stock (309) is separately mounted on the front and rear panel center of the model ontology (2), and each promotion length The both ends of bar (309) are rotated rotating around model ontology (2) and major diameter arc panel (306).
2. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 1, feature exist In: straight trip fixed pole (305) is equipped in the two sides of major diameter arc panel (306) and straight trip fixed pole (305) is integrated outer Dome ring (6), the lower end of the evagination annulus (6) are equipped with cutting interior-type groove (7), the cutting interior-type groove (7) It is inside hinged with the limit stock (8) around evagination annulus (6) rotation, the lower end of limit stock (8) is equipped with wear-resistant slide block (9), Smooth track (10) are equipped with along promotion stock (309) long axis direction, the wear-resistant slide block (9) can be along smooth track (10) internal mobile.
3. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 1, feature exist Including in: the model ontology (2) is rectangular-ambulatory-plane frame plate (201), and setting it is internal in rectangular-ambulatory-plane frame (201) and with return The parallel variable-pressure plate (202) of glyph framework plate (201) upper and lower plates, the bottom of the rectangular-ambulatory-plane frame plate (201), which is equipped with, pushes institute The force cylinder (203) that variable-pressure plate (202) moves up and down is stated, the outer ring of the variable-pressure plate (202), which is equipped with, improves leakproofness It is pressurized rubber ring (204), rectangular-ambulatory-plane frame plate (201) side plate bottom far from the servo motor (301) is hinged on the mould Type support base (1) upper surface.
4. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 3, feature exist In: the front and rear sides of the rectangular-ambulatory-plane frame plate (201) are fixedly installed with angle vertical plate (11), the angle vertical plate (11) edge is equipped with the graduation mark (12) of 0~90 ° of angular range, and the inside of the angle vertical plate (11) is equipped with convenient for observation The hollow out observation panel (13) of rectangular-ambulatory-plane frame plate (201) tilt angle.
5. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 1, feature exist In: the upper surface of the model support pedestal (1) is equipped with the buffering elastic vertically rotated for reducing rectangular-ambulatory-plane frame plate (201) Property pad (14).
6. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 1, feature exist In: the retaining mechanism (4) includes the locking sleeve (401) of setting two plates before and after rectangular-ambulatory-plane frame plate (201), the locking The side of sleeve (401) is connected with swingle (402), and the locking sleeve (401) is separately positioned on rectangular-ambulatory-plane frame plate (201) On two vertical edges centers of two plate of front and back, the swingle (402) can be rotating around before and after rectangular-ambulatory-plane frame plate (201) two The inside of the vertical edges lower rotation of plate, the locking sleeve (401) is equipped with locking screw rasp bar (403), the model support bottom The positioning strip (404) parallel with two plates before and after rectangular-ambulatory-plane frame plate (201) there are two being set on seat (1), along the positioning card The long axis of item (404) is equipped with several equally distributed threaded holes (405).
7. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 6, feature exist In: the upper and lower ends of the locking screw rasp bar (403) are equipped with thread segment (406), the spiral shell of locking screw rasp bar (403) upper end Line section (406) and locking sleeve (401) are realized by threaded engagement locks, the thread segment of locking screw rasp bar (403) lower end (406) it is realized and is locked by threaded engagement with threaded hole (405).
8. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 1, feature exist In: each surface of the rectangular-ambulatory-plane frame plate (201) is equipped with several equally distributed temperature sensor interfaces (15) and pressure Force snesor interface (16), each surface of the rectangular-ambulatory-plane frame plate (201) are additionally provided with the resistance of several reflection heat injection temperature Sensor electrode (17), the temperature sensor interface (15), pressure sensor interface (16) and electric resistance sensor electrode (17) Installation positioning spiro pit (18) is equipped on corresponding rectangular-ambulatory-plane frame plate (201) inner surface.
9. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 8, feature exist In: each temperature sensor interface (15), pressure sensor interface (16) and electric resistance sensor electrode (17) corresponding time It is equipped with interior-type groove (19) on glyph framework plate (201) outer surface, the interior-type groove (19) has been connected through a screw thread Sealing rubber pad (20).
10. a kind of rotating device of gas hydrates exploitation imitative experimental appliance according to claim 3, feature exist In: the variable-pressure plate (202) is equipped with buffer fluid flow velocity and absorbs the bottom water chamber (21) of impact energy, the bottom water chamber (21) It is equipped with several equally distributed water injection holes (22), the lower well point of the position of the water injection hole (22) and model well pattern (5) is one by one Vertical matching corresponds to.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113900143A (en) * 2021-09-29 2022-01-07 中国石油化工股份有限公司 Method and device for determining attribute characteristics of natural gas hydrate and server

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101916525A (en) * 2010-08-02 2010-12-15 任旭虎 Lifting rotary device of geologic simulation test bed
CN203742583U (en) * 2014-04-03 2014-07-30 中国地质大学（北京） Three dimensional horizontal well water controlling physics simulation experiment device
KR20160023045A (en) * 2014-08-21 2016-03-03 대우조선해양 주식회사 Agitating apparatus of mud tank and mud circulation system using the agitating apparatus
CN106089193A (en) * 2016-07-05 2016-11-09 高琴 Gas hydrates exploitation seabed rock deformation analogue experiment installation and experimental technique
CN207863903U (en) * 2017-10-31 2018-09-14 宝鸡石油机械有限责任公司 Experimental rig for the detection of automatic vertical drilling tool overall performance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101916525A (en) * 2010-08-02 2010-12-15 任旭虎 Lifting rotary device of geologic simulation test bed
CN203742583U (en) * 2014-04-03 2014-07-30 中国地质大学（北京） Three dimensional horizontal well water controlling physics simulation experiment device
KR20160023045A (en) * 2014-08-21 2016-03-03 대우조선해양 주식회사 Agitating apparatus of mud tank and mud circulation system using the agitating apparatus
CN106089193A (en) * 2016-07-05 2016-11-09 高琴 Gas hydrates exploitation seabed rock deformation analogue experiment installation and experimental technique
CN207863903U (en) * 2017-10-31 2018-09-14 宝鸡石油机械有限责任公司 Experimental rig for the detection of automatic vertical drilling tool overall performance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113900143A (en) * 2021-09-29 2022-01-07 中国石油化工股份有限公司 Method and device for determining attribute characteristics of natural gas hydrate and server
CN113900143B (en) * 2021-09-29 2023-03-14 中国石油化工股份有限公司 Method and device for determining attribute characteristics of natural gas hydrate and server

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