CN210347501U - Thermal simulation collection device for generation of organic acid in source rock - Google Patents
Thermal simulation collection device for generation of organic acid in source rock Download PDFInfo
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- CN210347501U CN210347501U CN201920290553.3U CN201920290553U CN210347501U CN 210347501 U CN210347501 U CN 210347501U CN 201920290553 U CN201920290553 U CN 201920290553U CN 210347501 U CN210347501 U CN 210347501U
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Abstract
The utility model provides a thermal simulation collection device that hydrocarbon source rock organic acid generated, including experiment water injection mechanism, high-pressure batch autoclave, condenser pipe, collection mechanism, the high-pressure batch autoclave import is connected with experiment water injection mechanism, and high-pressure batch autoclave exports and condenser pipe entry linkage, and the condenser pipe export is connected with collection mechanism. The high-pressure reaction kettle is placed in a pyrolysis furnace. The utility model discloses can realize the hydrocarbon source rock organic acid generation and the discharge process under the semi-open-semi-enclosed condition similar to underground. The nature and quantity of the organic acid produced are closer to those in the ground. In addition the utility model provides a collection device of simulation result can collect the organic acid that generates on line, prevents the loss of low molecular weight organic acid.
Description
Technical Field
The utility model belongs to the technical field of the oil geological exploration and specifically relates to a thermal simulation collection device that hydrocarbon source rock organic acid generated.
Background
The hydrocarbon source rock hydrocarbon production process generates a certain amount of low molecular weight organic acid, and the generated organic acid enters the reservoir along with the hydrocarbon source rock discharge fluid, including oil discharged by the hydrocarbon source rock and water discharged by the hydrocarbon source rock, and generates fluid-rock interaction with the rock, so that the reservoir performance of the reservoir is improved. The quantity and the characteristics of the generated organic acid of the source rock with different types of organic matters and different thermal evolution degrees can be greatly different. The generation of organic acids and their interaction with inorganic minerals have been an important part of petroleum geology research. And as oil and gas exploration expands to deep and unconventional oil and gas, the research on the formation mechanism of organic acid also becomes more and more important.
The method is an important means for researching the formation mechanism of organic acid by utilizing pressurized heating of a hydrocarbon source rock sample, and the current simulation experiment for simulating the formation process of the organic acid comprises an open heating simulation experiment method, a closed simulation experiment method and the like. In addition, the low molecular weight organic acid has low boiling point and is easy to volatilize and dissipate during the collection of the simulated product. At present, a simulation experiment device which can simulate underground pressure conditions, generate and discharge organic acid at the same time and collect the discharged organic acid on line is lacked.
The porous microporous metal powder wood sintered plate is a novel high-efficiency porous filtering material which is prepared by using industrial high-purity metal powder (994 percent) as a raw material through the technical processes of powder classification, molding, coal caking, mechanical welding processing and the like, can be widely applied to the fields of medicine industry, water treatment industry, food industry, bioengineering, chemical industry, petrochemical industry, metallurgical industry and gas purification because the pores and the filtering precision can be adjusted in a consistent range, and is a novel filtering material with wide development prospect. The filtration principle is as follows: the porous microporous metal powder sintered plate is a titanium gold sintered porous filtering material prepared by a powder metallurgy method, the inner pores of the porous filtering material are arranged in a bending mode and are staggered in a criss-cross mode, the pore size distribution is uniform, and the filtering mechanism is typical deep filtering.
Through key words such as retrieval organic acid, simulation, hydrocarbon source rock, not discover similar experimental apparatus, not discover with the utility model discloses the public technology of same structure and principle.
Chen et al, 1994, "oil shale production Low molecular weight organic acid simulation experiment research" (journal: geochemistry) describes the simulation of organic acid production using a mixture of kerogen and mineral powder, and extracted mudstone, using three devices, namely a high pressure polyethylene plastic bottle, a stainless steel reaction bomb lined with polytetrafluoroethylene, and a hard glass tube placed in a stainless steel high pressure reaction kettle.
Schroemeria Schroemerifolia (Schroemeria Schroemerica) published by 2011 in the research on the experiment of producing low-molecular-weight organic acids by hydrothermally decomposing mudstone (journal name: geochemistry), the generation of organic acids is simulated by performing hydrothermally decomposing on mudstone cuttings, and a plurality of common low-molecular-weight organic acids in aqueous solution after the experiment are measured. The simulated containers were plastic bottles and high pressure bombs, respectively.
Application No. 201710965898.X (method and apparatus for determining organic acid production amount of organic matter in an underground hydrocarbon source rock formation) discloses an apparatus for determining organic acid production amount of organic matter in an underground hydrocarbon source rock formation, the apparatus for calculating organic acid production amount of an underground hydrocarbon source rock comprising: the acquisition module is used for acquiring characteristic data of organic geochemistry of the hydrocarbon source rock stratum; the acid generation rate establishing module is used for establishing a relation curve between the acid generation rate and the maturity of organic matters in the hydrocarbon source rock stratum to obtain the acid generation rate; the organic matter maturity calculation module is used for simulating and calculating the maturity of organic matters in hydrocarbon source rock strata at different depths; the original organic carbon content calculation module is used for calculating the original organic carbon content in the hydrocarbon source rock stratum; the acid generation intensity calculation module is used for calculating the acid generation intensity of a single type of organic matter in the hydrocarbon source rock stratum; and the organic acid generation amount calculation module is used for calculating the total organic acid generation amount of all kinds of organic matters in the hydrocarbon source rock stratum.
Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, the utility model discloses more technical problem and the beneficial effect that will solve, above open technical document all do not have the technological inspiration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thermal simulation collection device that hydrocarbon source rock organic acid generated can realize that the hydrocarbon source rock organic acid under the semi-open-semi-closed condition similar to underground generates and the discharge process. The nature and quantity of the organic acid produced are closer to those in the ground. In addition the utility model provides a collection device of simulation result can collect the organic acid that generates on line, prevents the loss of low molecular weight organic acid.
The purpose of the utility model can be realized by the following technical measures:
this thermal simulation collection device that hydrocarbon source rock organic acid generated includes experiment water injection mechanism, high pressure batch autoclave, condenser pipe, collection mechanism, the high pressure batch autoclave import is connected with experiment water injection mechanism, and the high pressure batch autoclave export is connected with the condenser pipe entry, and the condenser pipe export is connected with collection mechanism.
The purpose of the utility model can be realized by the following technical measures:
the high-pressure reaction kettle is placed in a pyrolysis furnace.
Collect mechanism and collect calandria, gas delivery pipe, bottom communicating pipe including organic acid, organic acid collects the calandria and includes initial collecting pipe, secondary collecting pipe, and wherein initial collecting pipe only sets up one, and secondary collecting pipe sets up 2 at least, initial collecting pipe and all secondary collecting pipes all connect in parallel between gas delivery pipe, bottom communicating pipe, initial collecting pipe upper end gas outlet, secondary collecting pipe upper end gas outlet all communicate with gas delivery pipe promptly, initial collecting pipe lower extreme liquid outlet, secondary collecting pipe lower extreme liquid outlet all communicate with bottom communicating pipe, an initial collecting pipe import is still seted up to initial collecting pipe upper end, and the condenser pipe export is connected with initial collecting pipe import.
The washing pipes are arranged in the initial collecting pipe and the secondary collecting pipe, wherein the washing pipes in the initial collecting pipe are straight pipes, the upper end ports of the straight pipes are connected with the inlet of the initial collecting pipe, the lower end ports of the straight pipes are suspended at the bottom of the inner cavity of the initial collecting pipe, and the middle part of the side wall of the initial collecting pipe is also provided with an initial outlet; the washing air pipe in the secondary collecting pipe is a coiled pipe, the upper port of the coiled pipe is connected with a secondary collecting pipe inlet formed in the side wall of the secondary collecting pipe, the lower port of the coiled pipe is suspended at the bottom of the inner cavity of the secondary collecting pipe, meanwhile, the secondary collecting pipe inlet of a first secondary collecting pipe in all the secondary collecting pipes is connected with an initial side wall outlet formed in the side wall of the initial collecting pipe, the secondary collecting pipe inlet of a second secondary collecting pipe is connected with a secondary side wall outlet formed in the side wall of the first secondary collecting pipe, and the connection mode between every two secondary collecting pipes is analogized.
The position of the outlet of the secondary side wall of the same secondary collecting pipe is higher than the position of the inlet of the secondary collecting pipe; and in the secondary collecting pipes between every two secondary collecting pipes, the position of the inlet of the secondary collecting pipe arranged on the next secondary collecting pipe is higher than the position of the inlet of the secondary collecting pipe arranged on the previous secondary collecting pipe.
The collecting pipe valve is installed at a liquid outlet at the lower end of the initial collecting pipe, the collecting pipe valve is installed at a gas outlet at the upper end of the secondary collecting pipe and a liquid outlet at the lower end of the secondary collecting pipe, the tail end of the bottom communicating pipe is connected with the liquid storage bottle, and absorption liquid for absorbing organic acid is contained in the liquid storage bottle.
The high-pressure reaction kettle comprises a tubular kettle body, an upper sealing cover and a microporous porous filter plate, wherein the upper end opening of the tubular kettle body is provided with the sealing cover, the lower end of the tubular kettle body is provided with a kettle outlet, the upper sealing cover is provided with a kettle inlet, the microporous porous filter plate is arranged in an inner cavity of the tubular kettle body, a sample is placed in the tubular kettle body, and the sample is positioned on the microporous porous filter plate.
The injection mechanism comprises a constant-speed constant-pressure injection pump, an underwater container and a high-pressure valve which are sequentially connected through a high-pressure pipeline, wherein the outlet of the high-pressure valve is connected with the inlet of the kettle body, the inlet of the kettle body is also connected with the vacuum pump, and the outlet of the vacuum pump is provided with a valve.
Cauldron body export is passed through the backpressure valve and is connected the condenser pipe import, and import and export at the backpressure valve still have the bypass in parallel, set up the valve on the bypass, also set up the valve on the pipeline of being connected between backpressure valve and the export of the cauldron body, and the pipeline is washed in the back to cauldron body export still connection simultaneously.
The back pressure valve is further connected with a constant pressure pump, and the constant pressure pump is further connected with the constant-speed constant-pressure injection pump through a differential pressure meter.
Compared with the prior art, the utility model following beneficial effect has:
the utility model provides a thermal simulation collection device that hydrocarbon source rock organic acid generated can realize that the hydrocarbon source rock organic acid under the semi-open-semi-closed condition similar to underground generates and the discharge process. The nature and quantity of the organic acid produced are closer to those in the ground. In addition the utility model provides a collection device of simulation result can collect the organic acid that generates on line, prevents the loss of low molecular weight organic acid.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1-constant speed constant pressure injection pump; 2-an intermediate water container; 3-a high pressure valve; 4-a pyrolysis furnace; 5-high pressure reaction kettle; 6-sample; 7-microporous porous filter plate; 8-a vacuum pump; 9-a back flush line; 10-a back pressure valve; 11-a constant pressure pump; 12-bypass; 13-a condenser tube; 14-organic acid collecting calandria; 15-washing the trachea; 16-a collection tube valve; 17-a gas delivery pipe; 18-a liquid storage bottle; 19-differential pressure gauge.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
the utility model provides a thermal simulation collection device that hydrocarbon source rock organic acid generated, includes that the experiment water pours into mechanism, high-pressure batch autoclave, condenser pipe, collection mechanism into, 5 imports of high-pressure batch autoclave are connected with the experiment water pours into the mechanism into, and the high-pressure batch autoclave export is connected with 13 entry linkage of condenser pipe, and the condenser pipe export is connected with collection mechanism. The high-pressure reaction kettle is placed in the pyrolysis furnace 4.
Collect the mechanism and collect calandria 14, gas delivery pipe 17, bottom communicating pipe including organic acid, organic acid collects the calandria and includes initial collecting pipe, secondary collecting pipe, and wherein initial collecting pipe only sets up one, and secondary collecting pipe sets up 2 at least, initial collecting pipe and all secondary collecting pipes all connect in parallel between gas delivery pipe, bottom communicating pipe, initial collecting pipe upper end gas outlet, secondary collecting pipe upper end gas outlet all communicate with gas delivery pipe promptly, initial collecting pipe lower extreme liquid outlet, secondary collecting pipe lower extreme liquid outlet all communicate with bottom communicating pipe, an initial collecting pipe import is still seted up to initial collecting pipe upper end, and the condenser pipe export is connected with initial collecting pipe import.
The washing pipes 15 are arranged in the initial collecting pipe and the secondary collecting pipe, wherein the washing pipes in the initial collecting pipe are straight pipes, the upper end ports of the straight pipes are connected with the inlet of the initial collecting pipe, the lower end ports of the straight pipes are suspended at the bottom of the inner cavity of the initial collecting pipe, and the middle part of the side wall of the initial collecting pipe is also provided with an initial outlet; the washing air pipe in the secondary collecting pipe is a coiled pipe, the upper port of the coiled pipe is connected with a secondary collecting pipe inlet formed in the side wall of the secondary collecting pipe, the lower port of the coiled pipe is suspended at the bottom of the inner cavity of the secondary collecting pipe, meanwhile, the secondary collecting pipe inlet of a first secondary collecting pipe in all the secondary collecting pipes is connected with an initial side wall outlet formed in the side wall of the initial collecting pipe, the secondary collecting pipe inlet of a second secondary collecting pipe is connected with a secondary side wall outlet formed in the side wall of the first secondary collecting pipe, and the connection mode between every two secondary collecting pipes is analogized.
The position of the outlet of the secondary side wall of the same secondary collecting pipe is higher than the position of the inlet of the secondary collecting pipe; and in the secondary collecting pipes between every two secondary collecting pipes, the position of the inlet of the secondary collecting pipe arranged on the next secondary collecting pipe is higher than the position of the inlet of the secondary collecting pipe arranged on the previous secondary collecting pipe.
The collecting pipe valve 16 is installed at the liquid outlet at the lower end of the initial collecting pipe, the collecting pipe valves are installed at the gas outlet at the upper end and the liquid outlet at the lower end of the secondary collecting pipe, the tail end of the bottom communicating pipe is connected with the liquid storage bottle, and absorption liquid for absorbing organic acid is contained in the liquid storage bottle.
The high-pressure reaction kettle comprises a tubular kettle body, an upper sealing cover and a microporous porous filter plate 7, wherein the upper end opening of the tubular kettle body is provided with the sealing cover, the lower end of the tubular kettle body is provided with a kettle outlet, the upper sealing cover is provided with a kettle inlet, the microporous porous filter plate 7 is arranged in an inner cavity of the tubular kettle body, a sample 6 is placed in the tubular kettle body, and the sample is positioned on the microporous porous filter plate.
The injection mechanism comprises a constant-speed constant-pressure injection pump 1, an intermediate water container 2 and a high-pressure valve 3 which are sequentially connected through a high-pressure pipeline, wherein the outlet of the high-pressure valve is connected with the inlet of the kettle body, the inlet of the kettle body is also connected with a vacuum pump 8, and the outlet of the vacuum pump is provided with a valve. The underwater intermediate container is a piston type container in the prior art, belongs to the conventional technology in the field, and can be directly applied, namely simply a cylinder body, a piston is arranged in the cylinder body, the cylinder body is divided into two cavities by the piston, and experimental water is filled in the cavity at the tail end of the cylinder body.
Cauldron body export is connected the condenser pipe import through back pressure valve 10, and import and export at the back pressure valve still have bypass 12 in parallel, set up the valve on the bypass, also set up the valve on the pipeline of being connected between back pressure valve and the cauldron body export, cauldron body export still connects the back flush pipeline simultaneously.
The back pressure valve is further connected with a constant pressure pump 11, and the constant pressure pump is further connected with a constant speed and constant pressure injection pump through a differential pressure gauge 19.
Example 1:
this hydrocarbon source rock organic acid generates thermal simulation and collection device includes: a constant-speed constant-pressure injection pump 1; an intermediate water container 2; a high-pressure valve 3; a pyrolysis furnace 4; a high-pressure reaction kettle 5; sample 6; a microporous porous filter plate 7; a vacuum pump 8; a back flush line 9; a back pressure valve 10; a constant pressure pump 11; a bypass 12; a condenser tube 13; an organic acid collecting comb 14; an air washing pipe 15; a collection tube valve 16; a gas delivery pipe 17; a liquid storage bottle 18; a differential pressure gauge 19.
The constant-speed constant-pressure injection pump 1 is connected with the water intermediate container 2 through a high-pressure pipeline, a piston is arranged in the water intermediate container 2, and the upper part of the piston is used for storing experimental water, or formation water or configured water.
The water intermediate container 2 is connected with a high-pressure reaction kettle 5 through a high-pressure pipeline and a high-pressure valve 3, and the high-pressure reaction kettle 5 is placed in a heating furnace 4 during a simulation experiment.
A microporous porous filter plate 7 is arranged in the high-pressure reaction kettle 5, the microporous porous filter plate 7 is made of a metal porous microporous material, and the periphery of the microporous porous filter plate is welded on the inner wall of the high-pressure reaction kettle 5. The sample 6 is placed on top of a microporous porous filter plate. The microporous porous filter plate 7 is directly made of a porous microporous metal powder wood sintered plate in the prior art, and can be directly applied after being purchased in the market.
The heating furnace 4 is used for heating the high-pressure reaction kettle 5 and controlling the reaction temperature, and can be used for heating at constant temperature or heating by temperature programming, and the temperature control precision is +/-2 ℃.
And the vacuum pump 8 is connected to the upper part of the high-pressure reaction kettle through a high-pressure valve and a high-pressure pipeline and is used for vacuumizing the cavity of the high-pressure reaction kettle 5 and the sample 6 before the simulation experiment of the generation of the organic acid.
The lower part of the high-pressure reaction kettle 5 is respectively connected with a back flushing pipeline 9, a back pressure valve 10 and a bypass 12.
The back flushing pipeline 9 is provided with a high-pressure valve and is used for back pressure flushing of the high-pressure reaction kettle 5, and the vacuum pump 8 is disconnected from the high-pressure reaction kettle 5 during the back flushing.
The back pressure valve 10 is used for setting fluid outlet pressure of a hydrocarbon source rock organic acid generation simulation experiment, namely, in the high-pressure reaction kettle 5, and the pressure of the back pressure valve is controlled by the constant pressure pump 11.
The constant pressure pump 11 is used for accurately controlling the pressure of the back pressure valve 10, and the working pressure range is 0～70MPa, and the pressure control precision is +/-0.1 MPa.
The bypass 12 comprises a high-pressure pipeline of a high-pressure valve, and the high-pressure valve is connected with the back-pressure valve 10 in parallel and used for normal-pressure open experiments or emergency fluid release when the pressure of the high-pressure reaction kettle is too high due to control faults and the like.
The condensation pipe 13 is connected with the outlet end pipelines of the back pressure valve 10 and the bypass 12, and the interfaces are sealed during the experiment and used for receiving the fluid flowing out through the back pressure valve 10 or the bypass 12.
The organic acid collecting calandria 14 is connected to the lower part of the condensation pipe 13 and is a series of collecting pipes distributed side by side, the top and the bottom of each collecting pipe are connected with a barrel, the top communicating pipe is a gas outlet pipe 17, the bottom communicating pipe is connected with a liquid storage bottle 18, and the top and the bottom of each collecting pipe are connected with a collecting pipe valve 16. All be provided with the gas washing pipe 15 in each collecting pipe, the gas washing pipe in the first collecting pipe that links to each other with condenser 13 is the straight tube, with condenser pipe lower extreme sealing connection, the gas washing pipe in follow-up collecting pipe all with preceding collecting pipe intercommunication, in the past backward, the interface of collecting pipe and breathing pipe risees in proper order to the abundant absorption of organic acid by the absorption liquid before gaseous entering next collecting pipe by a collecting pipe.
The liquid storage bottle 18 contains liquid for absorbing organic acid, in one embodiment, sodium hydroxide solution.
The differential pressure gauge 19 is connected between the constant-speed constant-pressure injection pump 1 and the constant-pressure pump 11 and is used for controlling the injection pressure and the outflow pressure to be kept within a set range, when the differential pressure is too high, the pipeline or the kettle is blocked, and the constant-speed constant-pressure injection pump 1 automatically stops injection.
Example 2 was carried out:
this hydrocarbon source rock organic acid generates thermal simulation and collection device includes: a constant-speed constant-pressure injection pump 1; an intermediate water container 2; a high-pressure valve 3; a pyrolysis furnace 4; a high-pressure reaction kettle 5; sample 6; a microporous porous filter plate 7; a vacuum pump 8; a back flush line 9; a back pressure valve 10; a constant pressure pump 11; a bypass 12; a condenser tube 13; an organic acid collecting comb 14; an air washing pipe 15; a collection tube valve 16; a gas delivery pipe 17; a liquid storage bottle 18; a differential pressure gauge 19.
During the experiment, the vacuum pump 8 is firstly used for vacuumizing the kettle and the pipeline.
In the simulation experiment process, last low-speed injection practical water in to high pressure reation kettle 5 to 5 internal pressures of high pressure reation kettle are controlled to backpressure valve 10, and when 5 internal pressures of high pressure reation kettle were higher than backpressure valve 11 and set up pressure, backpressure valve 10 opened, and the product that the simulation generated is carried to the experimental water of injection flows out, and after the product part flows out, 5 internal pressures of high pressure reation kettle reduced, backpressure valve 10 closed.
The fluid discharged from the back pressure valve 10 enters the condensing pipe 13 to be condensed and then is absorbed by the organic acid absorption liquid.
Before the experiment, the height of the liquid storage bottle 18 is increased, so that the absorption liquid is filled in the organic acid collecting calandria 14, the gas washing pipe 15 and the condenser pipe 13 in sequence and is connected to the outlet end of the back pressure valve 10.
When the organic acid generation simulation product is collected, the effluent liquid and gas enter the condensation pipe 13, and the organic acid in the gas and liquid contacts the absorption liquid and enters the absorption liquid. The added liquid and gas push the liquid in the condensation pipe 13 to enter the first collecting pipe and the second collecting pipe … of the organic acid collecting calandria in sequence. When the gas product is more, the gas can pass through the first gas washing pipe and the second gas washing pipe … in sequence and enter the first collecting pipe and the second collecting pipe …, so that the organic acid in the gas is fully absorbed by the absorption liquid.
After the collection is finished, the absorbed gas is led out through the gas outlet pipe 17 for other analysis tests.
Adding acid liquor into the collected organic acid absorption liquid to release the organic acid, and then qualitatively and quantitatively determining the generation characteristics of the organic acid by determining organic acid radical ions by using ion chromatography. The collected liquid can also be stored under a closed low-temperature condition for subsequent testing.
In the description of the present invention, it should be understood that the orientation indication or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a thermal simulation collection device that hydrocarbon source rock organic acid generated which characterized in that, includes experiment water injection mechanism, high pressure batch autoclave, condenser pipe, collection mechanism, the high pressure batch autoclave import is connected with experiment water injection mechanism, and the high pressure batch autoclave export is connected with the condenser pipe entry, and the condenser pipe export is connected with collection mechanism.
2. The device for thermally simulating and collecting the generation of organic acids from source rocks according to claim 1, wherein the autoclave is placed in a pyrolysis furnace.
3. The thermal simulation collection device for organic acid generation in hydrocarbon source rock according to claim 1 or 2, wherein the collection mechanism comprises an organic acid collection pipe bank, a gas outlet pipe and a bottom communicating pipe, the organic acid collection pipe bank comprises an initial collection pipe and a secondary collection pipe, wherein the initial collection pipe is only provided with one, the secondary collection pipe is provided with at least 2, the initial collection pipe and all the secondary collection pipes are connected in parallel between the gas outlet pipe and the bottom communicating pipe, namely, an air outlet at the upper end of the initial collection pipe and an air outlet at the upper end of the secondary collection pipe are both communicated with the gas outlet pipe, an air outlet at the lower end of the initial collection pipe and an air outlet at the lower end of the secondary collection pipe are both communicated with the bottom communicating pipe, an initial collection pipe inlet is further formed at the upper end of the.
4. The thermal simulation collection device for organic acid generation of hydrocarbon source rocks as claimed in claim 3, wherein a washing pipe is arranged in each of the initial collection pipe and the secondary collection pipe, wherein the washing pipe in the initial collection pipe is a straight pipe, the upper port of the straight pipe is connected with the inlet of the initial collection pipe, the lower port of the straight pipe is suspended at the bottom of the inner cavity of the initial collection pipe, and the middle part of the side wall of the initial collection pipe is provided with an initial outlet; the washing air pipe in the secondary collecting pipe is a coiled pipe, the upper port of the coiled pipe is connected with a secondary collecting pipe inlet formed in the side wall of the secondary collecting pipe, the lower port of the coiled pipe is suspended at the bottom of the inner cavity of the secondary collecting pipe, meanwhile, the secondary collecting pipe inlet of a first secondary collecting pipe in all the secondary collecting pipes is connected with an initial side wall outlet formed in the side wall of the initial collecting pipe, the secondary collecting pipe inlet of a second secondary collecting pipe is connected with a secondary side wall outlet formed in the side wall of the first secondary collecting pipe, and the connection mode between every two secondary collecting pipes is analogized.
5. The device for thermally simulating and collecting the generation of organic acid from hydrocarbon source rock according to claim 4, wherein the outlet of the secondary side wall of the same secondary collecting pipe is arranged at a position higher than the inlet of the secondary collecting pipe; and in the secondary collecting pipes between every two secondary collecting pipes, the position of the inlet of the secondary collecting pipe arranged on the next secondary collecting pipe is higher than the position of the inlet of the secondary collecting pipe arranged on the previous secondary collecting pipe.
6. The device for thermally simulating and collecting organic acid in source rock according to claim 4 or 5, wherein a collecting pipe valve is installed at the liquid outlet at the lower end of the initial collecting pipe, collecting pipe valves are installed at the gas outlet at the upper end and the liquid outlet at the lower end of the secondary collecting pipe, the end of the bottom communicating pipe is connected with a liquid storage bottle, and the liquid storage bottle contains absorption liquid for absorbing organic acid.
7. The thermal simulation collection device that hydrocarbon source rock organic acid generated of claim 1 or 2 or 4 or 5, characterized in that, high pressure reation kettle includes the tube-shape cauldron body, upper seal cover, micropore porous filter plate, the closing cover is installed to tube-shape cauldron body upper end mouth, and cauldron body export is seted up to tube-shape cauldron body lower extreme, and cauldron body import is seted up to upper seal cover, tube-shape cauldron body inner chamber installation micropore porous filter plate, places the sample in the tube-shape cauldron body, and the sample is located micropore porous filter plate.
8. The device for thermally simulating and collecting the generation of organic acids from hydrocarbon source rocks according to claim 7, wherein the injection mechanism comprises a constant-speed constant-pressure injection pump, an intermediate water container and a high-pressure valve which are sequentially connected through a high-pressure pipeline, the outlet of the high-pressure valve is connected with the inlet of the kettle body, the inlet of the kettle body is simultaneously connected with a vacuum pump, and the outlet of the vacuum pump is provided with a valve.
9. The thermal simulation collection device that hydrocarbon source rock organic acid generated of claim 7, characterized in that, cauldron body export is connected the condenser pipe import through back pressure valve, still has the bypass in parallel at the import and the export of back pressure valve, sets up the valve on the bypass, also sets up the valve on the pipeline of being connected between back pressure valve and the cauldron body export, cauldron body export still connects the back flush pipeline simultaneously.
10. The device for thermally simulating the generation of organic acids from hydrocarbon source rocks according to claim 9, wherein the back pressure valve is further connected with a constant pressure pump, and the constant pressure pump and the constant speed constant pressure injection pump are further connected through a differential pressure meter.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991260A (en) * | 2019-03-07 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of the thermal simulation collection device and method of the generation of hydrocarbon source rock organic acid |
| CN113125614A (en) * | 2021-03-25 | 2021-07-16 | 中国科学院西北生态环境资源研究院 | Method for extracting water-soluble organic acid in shale and coal rock containing soluble organic matter |
| CN113466403A (en) * | 2021-04-15 | 2021-10-01 | 中国科学院西北生态环境资源研究院 | Simulation test system and method for hydrocarbon source rock pyrolysis and organic acid evolution |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109991260A (en) * | 2019-03-07 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of the thermal simulation collection device and method of the generation of hydrocarbon source rock organic acid |
| CN109991260B (en) * | 2019-03-07 | 2024-09-20 | 中国石油化工股份有限公司 | Thermal simulation collecting device and method for organic acid generation of hydrocarbon source rock |
| CN113125614A (en) * | 2021-03-25 | 2021-07-16 | 中国科学院西北生态环境资源研究院 | Method for extracting water-soluble organic acid in shale and coal rock containing soluble organic matter |
| CN113466403A (en) * | 2021-04-15 | 2021-10-01 | 中国科学院西北生态环境资源研究院 | Simulation test system and method for hydrocarbon source rock pyrolysis and organic acid evolution |
| CN113466403B (en) * | 2021-04-15 | 2022-06-03 | 中国科学院西北生态环境资源研究院 | Simulation test system and method for hydrocarbon source rock pyrolysis and organic acid evolution |
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