CN116717221A - Experimental device for simulating combined production of microorganism and carbon dioxide and increasing yield of coalbed methane - Google Patents
Experimental device for simulating combined production of microorganism and carbon dioxide and increasing yield of coalbed methane Download PDFInfo
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- CN116717221A CN116717221A CN202310987835.XA CN202310987835A CN116717221A CN 116717221 A CN116717221 A CN 116717221A CN 202310987835 A CN202310987835 A CN 202310987835A CN 116717221 A CN116717221 A CN 116717221A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 44
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 22
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 244000005700 microbiome Species 0.000 title claims abstract description 15
- 239000003245 coal Substances 0.000 claims abstract description 119
- 238000001125 extrusion Methods 0.000 claims abstract description 103
- 238000005056 compaction Methods 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000010276 construction Methods 0.000 claims abstract description 37
- 235000015097 nutrients Nutrition 0.000 claims abstract description 22
- 230000001580 bacterial effect Effects 0.000 claims abstract description 10
- 241000894006 Bacteria Species 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- 241000233866 Fungi Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000016709 nutrition Nutrition 0.000 description 4
- 230000035764 nutrition Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention relates to an experimental device for simulating the joint production of microorganism and carbon dioxide to increase the yield of coalbed methane, which comprises a reactor, and a lofting unit, a bacterial liquid unit, a nutrient liquid unit and a gas supply unit which are connected with the reactor, wherein the lofting unit, the bacterial liquid unit, the nutrient liquid unit and the gas supply unit are respectively used for providing coal samples, microorganisms, nutrient liquid and carbon dioxide for the reactor, and the reactor is filled with the coal samples; the top of the reactor is provided with a top cover, and the top cover is provided with a compaction part for compacting the coal sample in the reactor to form a simulated coal bed; each side wall in the reactor is provided with an extrusion part which can horizontally move; the bottom surface of the reactor is provided with a construction part which can move up and down; the extrusion part and the construction part are used for applying force to the coal seam so that the coal seam forms different geological structures.
Description
Technical Field
The invention belongs to the technical field of coalbed methane production by combining microorganisms and carbon dioxide, and particularly relates to an experimental device for simulating the coalbed methane production by combining microorganisms and carbon dioxide.
Background
Coal bed gas is an important clean unconventional natural gas high-quality energy source, and the predicted resource quantity of the coal bed gas in China is about 26 trillion cubic meters. However, with the increase of the drainage and production period, the yield of the large-area coal-bed gas well gradually decreases, and the single-well yield of part of the coal-bed gas wells is not high, so that the vitality of the low-yield coal-bed gas well needs to be further burst, and the yield is improved. The conventional reservoir reconstruction technology mainly comprises hydraulic fracturing, electric pulse permeability improvement and the like, and can promote yield increase to a certain extent, but has larger energy consumption. The coalbed methane biological yield increasing technology is used as a green, easy-to-operate and low-cost reservoir reconstruction technology, and is also in a laboratory research stage due to the limitation of factors such as complex geological conditions, biological tolerance environment, coal quality conditions and the like. At present, in the laboratory stage, loose coal samples such as pulverized coal, coal particles and small coal blocks and other substances such as microorganisms are often subjected to combined yield increase reaction test, however, even if the test reaction result is ideal, the method is difficult to well apply to complex environments such as actual coal rock and coal seam structures. On the basis, the combined attack of the combined means of the single well injection of the carbon dioxide becomes a new direction of the search in recent years. The coupling relation between carbon dioxide and biological yield increase is not clear at the present stage, the experimental method is in the starting searching stage, and no set of experimental device is used for specialized experiments. Therefore, in the research of the actual microbial reservoir reconstruction technology, a specialized experimental device capable of simulating a real coal bed and having diversified combined capacity of increasing carbon dioxide and the like is urgently needed.
Disclosure of Invention
Aiming at the problems, the invention provides an experimental device for simulating the combined production of microorganism and carbon dioxide to increase the yield of coalbed methane, which comprises a reactor, and a lofting unit, a bacterial liquid unit, a nutrient liquid unit and a gas supply unit which are connected with the reactor, wherein the lofting unit, the bacterial liquid unit, the nutrient liquid unit and the gas supply unit are respectively used for providing coal samples, microorganisms, nutrient liquid and carbon dioxide for the reactor, and the reactor is filled with the coal samples;
the top of the reactor is provided with a top cover, and the top cover is provided with a compaction part for compacting the coal sample in the reactor to form a simulated coal bed; each side wall in the reactor is provided with an extrusion part which can horizontally move; the bottom surface of the reactor is provided with a construction part which can move up and down; the extrusion part and the construction part are used for applying force to the coal seam so that the coal seam forms different geological structures.
Optionally, the lofting unit includes sample tank, screw rod sample feeder and sample feeding frame, is equipped with the agitator in the sample tank for with the coal sample stirring of different particle diameters, the exit sample of the access connection sample tank of screw rod sample feeder, screw rod sample feeder erects on sample feeding frame, and can remove along sample feeding frame, and the bottom of sample feeding frame is equipped with the guide rail, makes sample feeding frame can remove along the guide rail, guarantees that the coal sample lays evenly in the reactor.
Further optionally, the reactor is a cuboid, the sample feeding frame comprises two guide rails and a plurality of groups of moving frames from bottom to top, each group of moving frames comprises two vertical rods and a horizontal slide rail, the bottoms of the outer sides of the two long sides of the reactor are respectively provided with one guide rail, and the bottom ends of the vertical rods are connected with the guide rails through first sliding blocks in a sliding manner;
two ends of the horizontal sliding rail are respectively detachably connected with the top ends of the vertical rods at two sides, and move on the guide rail through the vertical rods, and meanwhile, the horizontal sliding rail is driven to move along the long side edge of the reactor;
the plurality of groups of movable frames are uniformly arranged along the guide rail, and the screw sample feeder is in sliding connection with the horizontal slide rail through the second slide block.
Optionally, the long side of the reactor is provided with a first extrusion part, the wide side is provided with a second extrusion part, the first extrusion part comprises a first extrusion plate, the first extrusion plate is arranged on the inner side of the long side of the reactor, the first extrusion plate comprises a plurality of first extrusion blocks with the same size, the first extrusion blocks are rectangular, and the first extrusion blocks are arranged side by side to form the first extrusion plate;
each first extrusion block is connected with a first driving machine, the first driving machine is arranged outside the reactor and connected with the corresponding first extrusion block through a first driving rod, the first extrusion block is used for pushing the first extrusion plate to extrude the coal sample in the reactor, and the first driving rod penetrates through the long side face of the reactor.
Optionally, the second extrusion part includes second stripper plate, second driving machine and second actuating lever, and the inboard at the wide side of reactor is established to the second stripper plate, and the second stripper plate is monoblock panel, and the second driving machine is established in the reactor outside to connect the middle part of second stripper plate through the second actuating lever, be used for promoting the coal sample in the second stripper plate extrusion reactor, the second actuating lever runs through the wide side of reactor.
Optionally, the top cover is uniformly provided with a plurality of through holes for inserting a feeding pipe, and bacteria liquid, nutrient solution and carbon dioxide are input into the reactor.
Optionally, the compaction portion includes compaction board, and the compaction board is established at the lower surface of top cap, and the compaction board passes through the third actuating lever and connects the third driving machine of reactor top, and the third actuating lever runs through the top cap to connect the middle part of compaction board for promote the compaction board and compress loose coal sample downwards, form the simulated coal seam.
Further optionally, the compacting plates comprise two compacting blocks, the compacting blocks are square, the length of each compacting block is equal to the value obtained by subtracting the thickness of the two second extruding plates from the length of the interior of the reactor, the sum of the widths of the two compacting blocks is the value obtained by subtracting the thickness of the two first extruding plates from the width of the interior of the reactor, and the width of each compacting block is determined according to the distance between the two first extruding plates when the simulated coal bed is subjected to transverse fault modeling;
each compaction block is connected with a third driving machine through a third driving rod.
Optionally, a construction part and a cushion frame are arranged on the bottom surface of the reactor, when the construction part is static, the upper surfaces of the construction part and the cushion frame are flush, and the cushion frame is fixedly arranged on the outer side of the construction part in a surrounding manner and is clung to the inner walls of the four side surfaces of the reactor, so as to support the first extrusion plate and the second extrusion plate;
the construction part comprises a construction plate, the construction plate is formed by splicing a plurality of construction blocks with the same size, the construction blocks are square, the upper surface of each construction block is connected with a detachable second feeding pipe, and the second feeding pipes are vertically arranged;
the compaction plate and the top cover are respectively provided with a through hole corresponding to the position of the second feeding pipe, the auxiliary feeding pipes penetrate through the top cover and the compaction plate from the upper part of the reactor and are then in butt joint with the top end of the second feeding pipe, the top end of each auxiliary feeding pipe is detachably connected with a fourth driving machine, and the fourth driving machine is arranged above the reactor and is used for pulling the building blocks so as to jack up the simulated coal bed at a certain position in the reactor and manufacture faults.
Optionally, the bottom end of the second feed tube is flat; every second inlet pipe is furnished with a detachable stopper stick, and the top of stopper stick is equipped with the pier nose, and the external diameter of stopper stick is slightly less than the internal diameter of second inlet pipe, and the setting-out unit is to the time of the coal sample is scattered to the reactor, in the stopper stick inserts the second inlet pipe, the body of stopper stick blocks up the feed port of second inlet pipe, and the pier nose blocks up the top on second inlet pipe top, prevents that coal from getting into the second inlet pipe.
Further optionally, an inner wall of the top opening of the second feeding pipe is provided with an inner thread, and an outer wall of the bottom end of the corresponding auxiliary feeding pipe is provided with an external thread which is matched with the inner thread, so that the inner thread and the outer thread are convenient to connect;
the auxiliary material pipe is hollow, and the top is detachably connected with a fourth driving machine or a bacterial liquid unit, a nutrient solution unit and an air supply unit.
Drawings
FIG. 1 is a schematic structural diagram of an experimental apparatus of example 1;
FIG. 2 is a schematic view of a first press section, a second press section, and building blocks inside a reactor;
FIG. 3 is a schematic view of the compression part and the top cover;
FIG. 4 is a schematic view of a perforated compacting plate, top cover and reactor;
FIG. 5 is a schematic view of a first feed tube;
FIG. 6 is a schematic diagram showing the cooperation of the second feed tube with the compression part and the top cover of example 2;
FIG. 7 is a perspective view of FIG. 6;
FIG. 8 is a schematic illustration of the mating of the compacted cake of example 3 with a cap, a second feed tube;
FIG. 9 is a schematic diagram of the preparation stage of example 3;
fig. 10 is a schematic diagram of a manufacturing fault stage of example 3.
The above figures do not show the side walls and bottom of the reactor for clarity of illustration of the internal structure of the reactor.
In the drawings, a 1-reactor, a 2-top cover, a 3-non-porous compacting plate, a 4-first compacting plate, a 5-second compacting plate, a 6-building block, a 7-sample tank, an 8-screw feeder, a 9-guide rail, a 10-vertical rod, a 11-horizontal slide rail, a 12-first compacting plate, a 13-first driving rod, a 14-second driving rod, a 15-third driving rod, a 16-first feeding pipe, a 17-compacting block, a 18-cushion frame, a 19-second feeding pipe, a 20-auxiliary feeding pipe and a 21-porous compacting plate.
Detailed Description
Example 1
The experimental device for simulating the combined production of the microorganism and the carbon dioxide for increasing the yield of the coalbed methane provided by the embodiment comprises a reactor 1, and a lofting unit, a bacterial liquid unit, a nutrient liquid unit and an air supply unit which are connected with the reactor 1, wherein the experimental device is respectively used for providing a coal sample, the microorganism, the nutrient liquid and the carbon dioxide for the reactor 1, and the reactor 1 is filled with the coal sample;
the top of the reactor 1 is provided with a top cover 2, and the top cover 2 is provided with a compaction part for compacting a coal sample in the reactor 1 to form a simulated coal bed; each side wall in the reactor 1 is provided with an extrusion part which can horizontally move; the bottom surface of the reactor 1 is provided with a construction part which can move up and down; the extrusion part and the construction part are used for applying force to the coal seam so that the coal seam forms different geological structures.
The lofting unit includes sample tank 7, screw rod sample feeder 8 and sample feeding frame, is equipped with the agitator in the sample tank 7 for even with the coal sample stirring of different particle diameters, the exit sample of the access connection sample tank 7 of screw rod sample feeder 8, screw rod sample feeder 8 erects on sample feeding frame to can remove along sample feeding frame, the bottom of sample feeding frame is equipped with guide rail 9, makes sample feeding frame can remove along guide rail 9, guarantees that the coal sample lays evenly in reactor 1.
The reactor 1 is a cuboid, the sample feeding frame comprises two guide rails 9 and a plurality of groups of moving frames from bottom to top, each group of moving frames comprises two vertical rods 10 and a horizontal sliding rail 11, the bottoms of the outer sides of the two long sides of the reactor 1 are respectively provided with one guide rail 9, and the bottom ends of the vertical rods 10 are connected with the guide rails 9 through first sliding blocks in a sliding manner;
two ends of the horizontal slide rail 11 are respectively detachably connected with the top ends of the vertical rods 10 on two sides, and move on the guide rail 9 through the vertical rods 10, and meanwhile, the horizontal slide rail 11 is driven to move along the long side edge of the reactor 1;
the plurality of groups of movable frames are uniformly arranged along the guide rail 9, and the screw sample feeder 8 is in sliding connection with the horizontal slide rail 11 through the second sliding block, so that the screw sample feeder 8 is erected on the plurality of horizontal slide rails 11 and moves back and forth between two long side surfaces of the reactor 1 along the horizontal slide rail 11.
The screw sample feeder 8 is a conventional screw sample feeder 8, and the screw sample feeder 8 is generally in a long strip shape, so that the screw sample feeder 8 is kept horizontal and stably and continuously for conveying the coal samples all the time in the moving process, and the screw sample feeder 8 is supported by a plurality of groups of horizontal sliding rails 11 of the moving frames. In the sample feeding frame, the long side surface of the reactor 1 is parallel to the guide rail 9 and the screw sample feeder 8, and the horizontal sliding rail 11 is perpendicular to the long side surface of the reactor 1; each group of moving frames are door-type and transversely span between two long side surfaces, so that the screw rod sample feeder 8 moves back and forth between the two long side surfaces, the moving speed and the moving position of all second sliding blocks on the corresponding horizontal sliding rail 11 are the same, all second sliding blocks are arranged into a straight line, and the screw rod sample feeder 8 is correspondingly connected.
When the sample is sent, the top cover 2 of the reactor 1 is opened, sample sending frames are erected outside the reactor 1, all moving frames are spaced a certain distance from each other and are uniformly arranged on the guide rail 9, the screw sample sender 8 is arranged on the horizontal slide rail 11 through a second slide block, and the outlet of the screw sample sender 8 corresponds to one vertex angle of the reactor 1, namely, the outlet is used as a starting point for paving a coal sample; the screw sample feeder 8 moves to the other long side along the horizontal sliding rail 11 until moving to the adjacent vertex angle, and the moving frame does not move in the process; then, the moving frames move a small distance to the other wide side along the guide rail 9 through the first sliding blocks, at the moment, the moving speeds of all the moving frames are the same, so that the next section of coal sample is paved beside the previous section of coal sample, and then the second sliding blocks are started, so that the screw sample feeder 8 reversely translates. By using the sample feeding frame, the screw sample feeder 8 feeds samples along the serpentine shape, and uniformly lays the coal samples in the reactor 1.
The sample tank 7 is vertical, and the stirring paddles are of a spiral plate type, so that coal samples with different particle sizes in the sample tank 7 can be turned up and down; the sample outlet of the sample tank 7 is arranged at the middle upper part of the sample tank 7, so that the coal samples with different particle sizes are discharged at the same time. And (3) manually feeding the sample corresponding to the coal sample with the particle size larger than 5cm, namely manually sowing the sample in the reactor 1.
The long side surface of the reactor 1 is provided with a first extrusion part, the wide side surface is provided with a second extrusion part, the first extrusion part comprises a first extrusion plate 4, the first extrusion plate 4 is arranged on the inner side of the long side surface of the reactor 1, the first extrusion plate 4 comprises a plurality of first extrusion blocks 12 with the same size, the first extrusion blocks 12 are rectangular, and the first extrusion blocks 12 are arranged side by side to form the first extrusion plate 4;
each first extrusion block 12 is connected with a first driving machine, the first driving machine is arranged outside the reactor 1 and is connected with the corresponding first extrusion block 12 through a first driving rod 13, the first driving rod 13 is used for pushing the first extrusion plate 4 to extrude the coal sample in the reactor 1, and the first driving rod 13 penetrates through the long side face of the reactor 1.
The second extrusion part comprises a second extrusion plate 5, a second driving machine and a second driving rod 14, wherein the second extrusion plate 5 is arranged on the inner side of the wide side surface of the reactor 1, the second extrusion plate 5 is a whole plate, the second driving machine is arranged outside the reactor 1 and is connected with the middle part of the second extrusion plate through the second driving rod 14, the second extrusion part is used for pushing the second extrusion plate 5 to extrude a coal sample in the reactor 1, and the second driving rod 14 penetrates through the wide side surface of the reactor 1.
When extrusion molding is not needed, the second extrusion plate 5 is tightly attached to the wide side surface of the reactor 1, the first extrusion plate 4 is tightly attached to the long side surface of the reactor 1, the adjacent edges of the first extrusion plate 4 and the second extrusion plate 5 are butted with each other, coal samples are prevented from leaking into gaps between the first extrusion plate 4 and the second extrusion plate 5, and four vertex angles of the reactor are filled with four fixing blocks;
the first and second squeeze plates 4 and 5 have the same height and are lower than the lower surface of the compacting part of the top cover 2, and the total height of the coal sample charged in the reactor 1 is lower than the height of the first squeeze plate 4.
A plurality of through holes are uniformly formed in the top cover 2 and are used for being inserted into a first feeding pipe 16, and bacteria liquid, nutrient solution and carbon dioxide are input into the reactor 1;
the edge of top cap 2 evenly is equipped with a plurality of fixed part, and when reactor 1 covered top cap 2, fixed part blocked reactor 1 for top cap 2 firmly connects reactor 1, with top cap 2 jack-up when avoiding compaction portion compaction coal sample. The fixing part can be a clasp which can be opened and closed and is used for a common box.
The compaction part comprises a compaction plate, the compaction plate is a whole plate and is arranged on the lower surface of the top cover 2, the compaction part is provided with a non-porous compaction plate 3 and a porous compaction plate 21, the non-porous compaction plate 3 or the porous compaction plate 21 can be connected with a third driving machine above the reactor 1 through a third driving rod 15, the third driving rod 15 penetrates through the top cover 2 and is connected with the middle part of the non-porous compaction plate 3 or the porous compaction plate 21, and the compaction plate is used for pushing the non-porous compaction plate 3 or the porous compaction plate 21 to compact a loose coal sample downwards to form a simulated coal bed.
The pore-free compacting plates 3 and the pore-free compacting plates 21 have the same size, and the pore-free compacting plates 21 are uniformly provided with a plurality of through holes, and are in one-to-one correspondence with the through holes on the top cover 2 for feeding the reactor 1.
The method comprises the steps of designing the number of simulated coal layers and the layer thickness of each layer in advance before an experiment, determining the thickness of each coal layer paved by a lofting unit according to the compaction coefficient required by each coal layer, uniformly paving coal samples in a reactor 1 by the lofting unit, stopping sample feeding when the coal layer thickness reaches a preset thickness, dismantling a horizontal sliding rail 11 and a screw rod sample feeder 8, reserving the top space of the reactor 1, covering a top cover 2, downwards moving a non-porous compaction plate 3 to compact the coal layers in the reactor 1, and reducing the compacted coal layers to the actual simulation thickness. After compaction, the top cover 2 is removed, the horizontal slide rail 11 and the screw rod sample feeder 8 are installed, the upper coal bed is continuously paved, then compaction is carried out, and the times are repeated until all the coal beds required by the experiment are paved and compacted.
After the simulated coal beds in the reactor 1 are paved and compacted, the coal beds are horizontal at the moment, and the fold geological structure of the actual coal beds can be simulated. The top cover 2 is covered to prevent the coal sample from splashing out during extrusion molding, and the pore-free compacting plate 3 is tightly attached to the lower surface of the top cover 2. The two second extrusion plates 5 corresponding to the wide side surfaces move towards each other at the same time, or one second extrusion plate 5 does not move, and the other second extrusion plate 5 extrudes and moves to extrude the simulated coal bed in the reactor 1, so that the fold modeling along the length direction of the reactor 1 is formed. Alternatively, the two first extrusion plates 4 corresponding to the long sides move towards each other at the same time, or one first extrusion plate 4 does not move, and the other first extrusion plate 4 extrudes and moves to extrude the simulated coal bed in the reactor 1, so that the fold shape along the width direction of the reactor 1 is formed. The common experiment only has the fold modeling in one direction at the same time.
The reactor 1 comprises a first feeding pipe 16, wherein the first feeding pipe 16 is a hollow vertical pipe, the bottom end of the first feeding pipe is pointed cone-shaped and closed, and the top end of the first feeding pipe is open and is used for inputting bacterial liquid, nutrient solution and carbon dioxide gas; a plurality of feeding holes are uniformly formed in the side wall of the first feeding pipe 16, all the feeding holes are positioned in the simulated coal bed and used for uniformly feeding the simulated coal bed, and the heights of the feeding holes are designed according to the total height of the simulated coal bed required by an experiment;
the pore-free compacting plate 3 is disassembled, the pore-free compacting plate 21 is arranged on the lower surface of the top cover 2, the first feeding pipe 16 sequentially penetrates through the top cover 2 and the through holes of the pore-free compacting plate 21, and the top end of the first feeding pipe 16 is positioned above the outside of the top cover 2 and is detachably connected with a drilling machine, so that the first feeding pipe 16 is drilled downwards into the simulated coal seam until all feeding holes are immersed into the simulated coal seam;
in the experiment, the drilling machine is disassembled, and the top end of the first feeding pipe 16 is connected with a bacterial liquid unit or a nutrient solution unit or an air supply unit to realize feeding.
The bottom surface of the reactor 1 is provided with a construction part and a cushion frame 18, when the construction part is static, the construction part is flush with the upper surface of the cushion frame 18, and the cushion frame 18 is fixedly arranged on the outer side of the construction part in a surrounding manner and is tightly attached to the inner walls of the four sides of the reactor 1; when the first extrusion plate 4 and the second extrusion plate 5 are not molded and are clung to the side wall of the reactor 1, the cushion frame 18 is arranged below the first extrusion plate 4 and the second extrusion plate 5 and is used for supporting the first extrusion plate 4 and the second extrusion plate 5.
The construction part comprises a construction plate, the construction plate is formed by splicing a plurality of construction blocks 6 with the same size, and the construction blocks 6 are square.
The inside of the bottom plate of the reactor 1 is provided with a heating device, which is used for heating the simulated coal bed after the geological structure is completed, so that bacteria in the coal bed are killed, the experimental result of the subsequent microbial inoculum is not influenced, and the heat has a certain effect on the shaping of the coal bed by simulating the underground actual temperature environment.
The first extrusion block 12, the compaction plate and the constructional block 6 have certain thickness, and can not be completely separated from the first extrusion plate 4, the compaction plate and the constructional block when moving, so that coal samples can not leak from the gaps of the completely-protruding moving blocks. The first, second and third driving machines may employ driving devices having a telescopic function, such as hydraulic cylinders.
The fungus liquid unit includes fungus liquid jar and a plurality of fungus liquid pipe, and the nutrition liquid unit includes nutrition liquid jar and a plurality of nutrition liquid pipe, and the air feed unit includes compressed air jar and a plurality of trachea, and compressed air jar stores carbon dioxide, and the upper portion of every first inlet pipe 16 can set up a plurality of import, is used for connecting fungus liquid pipe, nutrition liquid pipe and trachea respectively.
Example 2
The experimental device for the combined production of coalbed methane by using the simulated microorganism and the carbon dioxide in the embodiment is the same as that in the embodiment 1, and is different in that, as shown in fig. 6-7, a perforated compacting plate 21 is used, a detachable second feeding pipe 19 is connected to the upper surface of each building block 6, the second feeding pipe 19 is vertically arranged, and when the building block 6 is closely attached to the bottom surface of the reactor 1, the height of the second feeding pipe 19 is not higher than the upper edge of the reactor 1 so as not to influence the moving feeding of the horizontal sliding rail 11 and the screw sample feeder 8;
the position of the perforated compacting plate 21 and the top cover 2 corresponding to the second feeding pipe 19 are provided with through holes for the auxiliary material pipes 20 to penetrate through the top cover 2 and the perforated compacting plate 21 from the upper part of the reactor 1 and then to be in butt joint with the top end of the second feeding pipe 19, the top end of each auxiliary material pipe 20 is detachably connected with a fourth driving machine, and the fourth driving machine is arranged above the reactor 1 and is used for pulling the building block 6 so as to jack up a simulated coal bed at a certain position in the reactor 1 and manufacture faults.
The building blocks 6 are arranged in a matrix on the bottom surface of the reactor 1 when stationary, with their upper surfaces at the same level, for receiving coal samples and for bearing the pressure of the compacting plates when compacting the coal seam. The periphery of the building block 6 is provided with a cushion frame 18, and the cushion frame 18 is fixed and used for supporting the first extrusion plate 4 and the second extrusion plate 5, so that the bottom surfaces of the first extrusion plate 4 and the second extrusion plate 5 are at the same horizontal height with the bottom surface of the simulated coal bed. The perforated compacting plates 21 are such that when compacting a coal sample in the reactor 1, the through holes of the perforated compacting plates 21 can be aligned with the corresponding second feed pipes 19, in which case the top of the second feed pipes 19 is not connected to the auxiliary pipe 20, so that the top of the second feed pipes 19 is inserted into the through holes of the perforated compacting plates 21 pressed down.
The structure of the second feed pipe 19 is the same as that of the first feed pipe 16 of embodiment 1, except that the bottom end of the second feed pipe 19 is flat; each second feeding pipe 19 is provided with a detachable blocking rod, the top end of the blocking rod is provided with a pier head, the outer diameter of the blocking rod is slightly smaller than the inner diameter of the second feeding pipe 19, when a coal sample is sowed into the reactor 1 by the lofting unit, the blocking rod is inserted into the second feeding pipe 19, the rod body of the blocking rod blocks the feeding hole of the second feeding pipe 19, the pier head is blocked above the top end of the second feeding pipe 19, coal is prevented from entering the second feeding pipe 19, and after the coal sample is fed and compacted, the blocking rod is removed. The diameter of the pier head of the stopper rod is slightly smaller than the inner diameter of the through-hole of the perforated compacting plate 21.
The inner wall of the top end opening of the second feeding pipe 19 is provided with an internal thread, and the outer wall of the bottom end of the corresponding auxiliary material pipe 20 is provided with an external thread which is matched with the internal thread, so that the two are convenient to connect;
the auxiliary pipe 20 is hollow in the inside and has a top detachably connected to a fourth driving machine or a bacteria liquid unit, a nutrient liquid unit and an air supply unit.
When vertical fault modeling is needed, before a coal sample is input into the reactor 1, a second feed pipe 19 is arranged on the building block 6, a blocking rod is inserted into the second feed pipe 19, so that coal is prevented from entering the second feed pipe 19 when the coal sample is scattered, and all extrusion parts are motionless; uniformly sowing coal samples into the reactor 1 by the lofting unit, compacting the coal bed downwards by the porous compacting plate 21 under the control of the third driving machine, and forming a horizontal simulated coal bed after a plurality of times; the perforated compacting plate 21 is lifted back, the top cover 2 is opened, the blocking rod is removed, the second feeding pipe 19 is connected with the auxiliary feeding pipe 20, the auxiliary feeding pipe 20 is connected with the fourth driving machine after penetrating through the perforated compacting plate 21 and the through holes of the top cover 2, the top cover 2 is covered, the auxiliary feeding pipe 20 and the second feeding pipe 19 are utilized to lift up the corresponding position and the corresponding number of building blocks 6, the corresponding local simulated coal bed is jacked up, a vertical fault is formed, and a certain distance is reserved between the top surface of the simulated coal bed in the reactor 1 and the top cover 2, so that a space is reserved for the lifted coal bed. The auxiliary pipe 20 is disconnected from the fourth driving machine, and the bacteria liquid unit or the nutrient liquid unit or the air supply unit is connected, so that the experiment can be started.
The upper portion of each auxiliary tube 20 may be provided with a plurality of inlets for connecting the bacteria liquid tube, the nutrient liquid tube and the air tube, respectively.
Example 3
The experimental device for combined production of coalbed methane by using the simulated microorganism and carbon dioxide in the embodiment is the same as that in the embodiment 2, except that, as shown in fig. 8-10, the compacting plates comprise two compacting blocks 17, the compacting blocks 17 are square, the length of each compacting block 17 is equal to the value obtained by subtracting the thickness of the two second extruding plates 5 from the length of the interior of the reactor 1, the sum of the widths of the two compacting blocks 17 is the value obtained by subtracting the thickness of the two first extruding plates 4 from the width of the interior of the reactor 1, and the width of each compacting block 17 is determined according to the interval between the two first extruding plates 4 when the simulated coal bed is subjected to transverse fault modeling;
each compaction block 17 is connected to a third drive machine via a third drive rod 15.
When a transverse fault modeling (i.e. sliding fault) is needed, as shown in fig. 9, in the preparation stage, before sample is sent, the whole first extrusion plate 4 of one first extrusion part is pushed to the direction of the other first extrusion plate 4 by one or a plurality of units, positioning rods are inserted into corresponding positions of each horizontal sliding rail 11, a plurality of positioning rods form a straight line, the straight line is flush with the inner side surface of the moving first extrusion plate 4 at the moment, so that the moving range of the second sliding block is between the two first extrusion plates 4 at the moment, and the sample is evenly sent by using the screw sample sender 8.
After one first extrusion plate 4 moves, the interior of the reactor 1 is divided into two parts, and the area between the moving first extrusion plate 4 and the other first extrusion plate 4 is used for manufacturing a simulated coal bed, wherein the width of the area is a plurality of unit distances; the area between the moving first extrusion plate 4 and the long side surface of the reactor 1, which is tightly attached before, is a sample without coal, the building block 6 at the position corresponding to the transverse fault in the area is removed in advance, a space is reserved for the movement of the transverse fault, the width of the area is one or a plurality of unit distances, the building block 6 is square, the side length is one unit distance, and the width of the first extrusion block 12 is one or two unit distances.
When the compaction part is pressed, only the compaction blocks 17 corresponding to the space between the two first extrusion plates 4 are used for compacting the coal sample in the reactor 1, so that a simulated coal bed can be obtained, and the compaction blocks 17 are provided with through holes corresponding to the second feeding pipes 19, namely the through holes on the compaction blocks 17 are provided with the same through holes arranged on the empty compaction plates 21; as shown in fig. 10, when manufacturing faults, the first extrusion plates 4 which do not move in advance push the first extrusion blocks 12 at the corresponding positions and the corresponding number to the inside of the reactor 1, and meanwhile, the first extrusion blocks 12 at the corresponding positions of the first extrusion plates 4 which move in advance exit to the outside of the reactor 1, and as the second feeding pipes 19 are arranged in advance, the moving coal bed drives the corresponding construction blocks 6 at the bottom of the moving coal bed to move together, so that the simulated coal bed forms transverse faults.
Then, the top cover 2 is opened, the auxiliary tube 20 is installed, and then the top cover 2 is covered, and the auxiliary tube 20 is connected with the bacteria liquid unit or the nutrient liquid unit or the air supply unit, so that the experiment can be started.
Claims (9)
1. The experimental device for simulating the combined production of the microorganism and the carbon dioxide for increasing the yield of the coalbed methane is characterized by comprising a reactor, and a lofting unit, a bacterial liquid unit, a nutrient liquid unit and a gas supply unit which are connected with the reactor, wherein the lofting unit, the bacterial liquid unit, the nutrient liquid unit and the gas supply unit are respectively used for providing a coal sample, the microorganism, the nutrient liquid and the carbon dioxide for the reactor, and the reactor is filled with the coal sample;
the top of the reactor is provided with a top cover, and the top cover is provided with a compaction part for compacting the coal sample in the reactor to form a simulated coal bed; each side wall in the reactor is provided with an extrusion part which can horizontally move; the bottom surface of the reactor is provided with a construction part which can move up and down; the extrusion part and the construction part are used for applying force to the coal seam so that the coal seam forms different geological structures.
2. The experimental device according to claim 1, wherein the lofting unit comprises a sample tank, a screw rod sample feeder and a sample feeding frame, wherein a stirrer is arranged in the sample tank and used for stirring coal samples with different particle sizes uniformly, an inlet of the screw rod sample feeder is connected with a sample outlet of the sample tank, the screw rod sample feeder is arranged on the sample feeding frame and can move along the sample feeding frame, and a guide rail is arranged at the bottom of the sample feeding frame, so that the sample feeding frame can move along the guide rail, and the coal samples are uniformly paved in the reactor.
3. The experimental device according to claim 2, wherein the reactor is a cuboid, the sample feeding frame comprises two guide rails and a plurality of groups of moving frames from bottom to top, each group of moving frames comprises two vertical rods and a horizontal slide rail, the outer bottoms of the two long sides of the reactor are respectively provided with one guide rail, and the bottom ends of the vertical rods are connected with the guide rails through first sliding blocks in a sliding manner;
two ends of the horizontal sliding rail are respectively detachably connected with the top ends of the vertical rods at two sides, and move on the guide rail through the vertical rods, and meanwhile, the horizontal sliding rail is driven to move along the long side edge of the reactor;
the plurality of groups of movable frames are uniformly arranged along the guide rail, and the screw sample feeder is in sliding connection with the horizontal slide rail through the second slide block.
4. The experimental device according to claim 3, wherein the long side surface of the reactor is provided with a first extrusion part, the wide side surface is provided with a second extrusion part, the first extrusion part comprises a first extrusion plate, the first extrusion plate is arranged on the inner side of the long side surface of the reactor and comprises a plurality of first extrusion blocks with the same size, the first extrusion blocks are rectangular, and the first extrusion blocks are arranged side by side to form the first extrusion plate;
each first extrusion block is connected with a first driving machine, the first driving machine is arranged outside the reactor and connected with the corresponding first extrusion block through a first driving rod, the first extrusion block is used for pushing the first extrusion plate to extrude the coal sample in the reactor, and the first driving rod penetrates through the long side face of the reactor.
5. The experimental apparatus according to claim 4, wherein the second extruding part comprises a second extruding plate, a second driving machine and a second driving rod, the second extruding plate is arranged on the inner side of the wide side surface of the reactor, the second extruding plate is a whole plate, the second driving machine is arranged on the outer part of the reactor and is connected with the middle part of the second extruding plate through the second driving rod, the second driving machine is used for pushing the second extruding plate to extrude the coal sample in the reactor, and the second driving rod penetrates through the wide side surface of the reactor.
6. The experimental device according to claim 5, wherein the top cover is uniformly provided with a plurality of through holes for inserting a feed pipe, and bacteria liquid, nutrient solution and carbon dioxide are input into the reactor;
the compaction part comprises a compaction plate, the compaction plate is arranged on the lower surface of the top cover, the compaction plate is connected with a third driving machine which is connected with the upper part of the reactor through a third driving rod, the third driving rod penetrates through the top cover and is connected with the middle part of the compaction plate, and the compaction plate is used for pushing the compaction plate to compact loose coal samples downwards to form a simulated coal bed.
7. The experimental device according to claim 6, wherein a construction part and a cushion frame are arranged on the bottom surface of the reactor, the construction part is flush with the upper surface of the cushion frame when the construction part is static, and the cushion frame is fixedly arranged on the outer side of the construction part in a surrounding manner and is tightly attached to the inner walls of the four side surfaces of the reactor, so as to support the first extrusion plate and the second extrusion plate;
the construction part comprises construction blocks which are formed by splicing a plurality of construction blocks with the same size, the construction blocks are square, the upper surface of each construction block is connected with a detachable second feeding pipe, and the second feeding pipes are vertically arranged;
the compaction plate and the top cover are respectively provided with a through hole corresponding to the position of the second feeding pipe, the auxiliary feeding pipes penetrate through the top cover and the compaction plate from the upper part of the reactor and are then in butt joint with the top end of the second feeding pipe, the top end of each auxiliary feeding pipe is detachably connected with a fourth driving machine, and the fourth driving machine is arranged above the reactor and is used for pulling the building blocks so as to jack up the simulated coal bed at a certain position in the reactor and manufacture faults.
8. The apparatus according to claim 7, wherein each of the second feed pipes is provided with a removable plug rod, a pier head is provided at the top end of the plug rod, the plug rod is inserted into the second feed pipe when the lofting unit spreads the coal sample to the reactor, the body of the plug rod plugs the feed hole of the second feed pipe, and the pier head is blocked above the top end of the second feed pipe to prevent coal from entering the second feed pipe.
9. The experimental device according to claim 7, wherein the auxiliary pipe is hollow in the interior and the top is detachably connected with a fourth driving machine or a bacteria liquid unit, a nutrient liquid unit and an air supply unit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117187050A (en) * | 2023-11-08 | 2023-12-08 | 中国煤炭地质总局勘查研究总院 | Experimental device for researching coalbed methane biological injection and migration rules |
| CN118128493A (en) * | 2024-05-10 | 2024-06-04 | 中国煤炭地质总局勘查研究总院 | Experimental device for coal seam fracturing and biological yield increase |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716950A (en) * | 2016-03-29 | 2016-06-29 | 山东科技大学 | Strip coal pillar stability testing device and testing method |
| CN105838598A (en) * | 2016-05-31 | 2016-08-10 | 河南理工大学 | Simulation experiment device for biomethanation of carbon dioxide sequestered in coal seams and experiment method |
| CN207751996U (en) * | 2017-12-13 | 2018-08-21 | 阳泉煤业（集团）有限责任公司 | The experimental provision that strata movement is observed under the conditions of a kind of simulation seam mining |
| CN108615448A (en) * | 2018-05-14 | 2018-10-02 | 蒋嫚 | The device that mining area surface collapses can be simulated in a kind of teaching of coal mine |
| CN109752259A (en) * | 2019-01-25 | 2019-05-14 | 山东科技大学 | Simulate the improving stability of surrounding rocks in roadway experimental rig and method of deep hot and humid environment |
| CN110514804A (en) * | 2019-08-30 | 2019-11-29 | 西安科技大学 | A kind of Seam Mining physical simulation experiment filling device and packing method |
| CN111596036A (en) * | 2020-06-23 | 2020-08-28 | 煤炭科学技术研究院有限公司 | Experimental simulation device and method for fault activation in coal seam mining |
| WO2021179335A1 (en) * | 2020-03-09 | 2021-09-16 | 山东科技大学 | Test method for coal mass crack propagation caused by water injection wetting at high temperature under true three-dimensional stress |
| CN115144563A (en) * | 2022-07-04 | 2022-10-04 | 河南大学 | Three-dimensional analog simulation device and method for inducing coal seam overlying strata water inrush by fault activation |
-
2023
- 2023-08-08 CN CN202310987835.XA patent/CN116717221B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716950A (en) * | 2016-03-29 | 2016-06-29 | 山东科技大学 | Strip coal pillar stability testing device and testing method |
| CN105838598A (en) * | 2016-05-31 | 2016-08-10 | 河南理工大学 | Simulation experiment device for biomethanation of carbon dioxide sequestered in coal seams and experiment method |
| CN207751996U (en) * | 2017-12-13 | 2018-08-21 | 阳泉煤业（集团）有限责任公司 | The experimental provision that strata movement is observed under the conditions of a kind of simulation seam mining |
| CN108615448A (en) * | 2018-05-14 | 2018-10-02 | 蒋嫚 | The device that mining area surface collapses can be simulated in a kind of teaching of coal mine |
| CN109752259A (en) * | 2019-01-25 | 2019-05-14 | 山东科技大学 | Simulate the improving stability of surrounding rocks in roadway experimental rig and method of deep hot and humid environment |
| CN110514804A (en) * | 2019-08-30 | 2019-11-29 | 西安科技大学 | A kind of Seam Mining physical simulation experiment filling device and packing method |
| WO2021179335A1 (en) * | 2020-03-09 | 2021-09-16 | 山东科技大学 | Test method for coal mass crack propagation caused by water injection wetting at high temperature under true three-dimensional stress |
| CN111596036A (en) * | 2020-06-23 | 2020-08-28 | 煤炭科学技术研究院有限公司 | Experimental simulation device and method for fault activation in coal seam mining |
| CN115144563A (en) * | 2022-07-04 | 2022-10-04 | 河南大学 | Three-dimensional analog simulation device and method for inducing coal seam overlying strata water inrush by fault activation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117187050A (en) * | 2023-11-08 | 2023-12-08 | 中国煤炭地质总局勘查研究总院 | Experimental device for researching coalbed methane biological injection and migration rules |
| CN117187050B (en) * | 2023-11-08 | 2024-02-23 | 中国煤炭地质总局勘查研究总院 | Experimental device for researching coalbed methane biological injection and migration rules |
| CN118128493A (en) * | 2024-05-10 | 2024-06-04 | 中国煤炭地质总局勘查研究总院 | Experimental device for coal seam fracturing and biological yield increase |
| CN118128493B (en) * | 2024-05-10 | 2024-07-12 | 中国煤炭地质总局勘查研究总院 | Experimental device for coal seam fracturing and biological yield increase |
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|---|---|
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