CN202814960U - Physical simulation experimental device for water invasion performance of fissured gas reservoir with bottom water - Google Patents
Physical simulation experimental device for water invasion performance of fissured gas reservoir with bottom water Download PDFInfo
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- CN202814960U CN202814960U CN 201220405534 CN201220405534U CN202814960U CN 202814960 U CN202814960 U CN 202814960U CN 201220405534 CN201220405534 CN 201220405534 CN 201220405534 U CN201220405534 U CN 201220405534U CN 202814960 U CN202814960 U CN 202814960U
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Abstract
The utility model discloses a physical simulation experimental device for water invasion performance of fissured gas reservoir with bottom water. The physical simulation experimental device comprises a core holder, a fissured rock sample, a high-pressure injection pump, a gas supply container, a water supply container, a gas-water separator and a gas flowmeter, wherein the core holder comprises a holder barrel body, a rubber sleeve, a containing chamber and an annular confining pressure space; the fissured rock sample is placed in the containing chamber; the high-pressure injection pump is communicated with the confining pressure space of the core holder through a first hollow pipe; a first switch valve is arranged on the first hollow pipe; the gas supply container and the water supply container are in a parallel connection and are connected to an inlet end of the core holder; a second switch valve is arranged between the gas supply container and a second hollow pipe; a third switch valve is arranged between the water supply container and the second hollow pipe; the gas-water separator and the gas flowmeter are in series connection; the gas-water separator is connected to an outlet end of the core holder; and a fourth switch valve is arranged on a third hollow pipe. By adopting the physical simulation experimental device, the simulation study on water invasion performance of fissured gas reservoir with bottom water can be performed in a laboratory; and the physical simulation experimental device has the advantages of being accurate in test data, simple in equipment, and easy to operate.
Description
Technical field
The utility model relates to oil-gas field development core experiment analysis technology, relate in particular to a kind of can fracture at the bottom of the Gas Reservoirs water enchroachment (invasion) experimental provision that dynamically carries out modeling effort.
Background technology
In the oil-gas field development field, all there is limit Di Shui in most gas reservoirs, tend to occur water enchroachment (invasion) in the gas reservoir development process, Fractured Gas Reservoir particularly, limit Di Shui be easy to alter along the crack to the shaft bottom into, water enchroachment (invasion) is very large on the impact of gas well gas production rate, in a lot of gas reservoir developments performance is being arranged all.
At present, the method of carrying out Fractured Gas Reservoir water enchroachment (invasion) dynamic studies mainly is the methods such as material balance, production performance analysis, professional magazine " gas industry " for example, 2006, " identification of edge water gas reservoir Water Invasion Characteristics and Mechanisms " article that 26 (3) phases published, author He Xiaodong etc.; " special reservoirs ", " Fractured has Gas Reservoirs water influx rate Forecasting Methodology " article that publish in April, 2010, author Chen Jun is put the credit front yard, Zhang Aihua etc.Above-mentioned document all is to adopt the methods such as material balance, production performance analysis to carry out Fractured Gas Reservoir water enchroachment (invasion) dynamic studies.And said method all can't dynamically carry out modeling effort by the Gas Reservoirs water enchroachment (invasion) at the bottom of adopting the laboratory facilities fracture in the laboratory, is unfavorable for carrying out correlative study work.
The utility model content
The purpose of this utility model provides a kind ofly can under lab carry out Gas Reservoirs water enchroachment (invasion) dynamic similation research at the bottom of the Fractured, test data is accurate, equipment is simple, Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the Fractured of easy operating.
For achieving the above object, the utility model proposes Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of a kind of Fractured, comprise: core holding unit, comprise the clamper cylindrical shell, in described clamper cylindrical shell, be provided with vertically rubber sleeve, described rubber sleeve has be used to the accommodating cavity that holds rock core to be measured, has certain interval between the outer wall of described rubber sleeve and the described clamper cylinder inboard wall and forms ring-type confined pressure space; The crack rock sample is arranged in the described accommodating cavity; High pressure syringe pump, be connected with the confined pressure space of described core holding unit by the first hollow tubular, be used in core holding unit, adding confined pressure, be provided with the first controlled valve at the first hollow tubular, be used for controlling being communicated with and disconnection of described high pressure syringe pump and described confined pressure space; The air feed container and the water supply container that are arranged in parallel, be connected in the inlet end of described core holding unit by the second hollow tubular, in described air feed container contents gases at high pressure are housed, described water supply container content is equipped with high-pressure water body, connecting line between described air feed container and described the second hollow tubular is provided with the second switch valve, and the connecting line between described water supply container and described the second hollow tubular is provided with the 3rd controlled valve; Moisture trap and gas meter that series connection arranges, described moisture trap is connected in the endpiece of described core holding unit by the 3rd hollow tubular, described gas meter is connected with described moisture trap by gas piping, is provided with the 4th controlled valve at described the 3rd hollow tubular.
Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the aforesaid Fractured wherein, is respectively equipped with the first pressure transducer, the second pressure transducer and the 3rd pressure transducer at described the first hollow tubular, the second hollow tubular and the 3rd hollow tubular.
Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the aforesaid Fractured, wherein, the diameter of described crack rock sample is 10cm, length is 20cm.
Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the aforesaid Fractured, wherein, the highest withstand voltage 70MPa that is of described core holding unit, described high pressure syringe pump, described air feed container and described water supply container.
Compared with prior art, the utlity model has following characteristics and advantage:
The utility model can under lab carry out Gas Reservoirs water enchroachment (invasion) dynamic similation research at the bottom of the Fractured, has that test data is accurate, equipment simple, the advantage of easy operating.
Description of drawings
Accompanying drawing described here only is used for task of explanation, and is not intended to limit by any way the utility model scope of disclosure.In addition, the shape of each parts among the figure and proportional sizes etc. only are schematically, be used for helping understanding of the present utility model, and be not shape and the proportional sizes that specifically limits each parts of the utility model.Those skilled in the art can select various possible shapes and proportional sizes to implement the utility model under instruction of the present utility model as the case may be.
Fig. 1 is the structural representation of Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the utility model Fractured.
Description of reference numerals:
The 1-core holding unit; 2-crack rock sample; The 3-high pressure syringe pump; 4-air feed container; The 5-water supply container; The 6-moisture trap; The 7-gas meter;
11-the first hollow tubular; 12-the second hollow tubular; 13-the 3rd hollow tubular; The 14-gas piping;
21-the first controlled valve; 22-second switch valve; 23-the 3rd controlled valve; 24-the 4th controlled valve;
31-the first pressure transducer; 32-the second pressure transducer; 33-the 3rd pressure transducer.
Embodiment
With the description of the utility model embodiment, can more be well understood to details of the present utility model by reference to the accompanying drawings.But embodiment of the present utility model described here only is used for explaining the purpose of this utility model, is to restriction of the present utility model and can not be understood as by any way.Under instruction of the present utility model, the technician can conceive based on arbitrarily possible distortion of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1, be the structural representation of Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the utility model Fractured.As shown in the figure, Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device comprises at the bottom of the Fractured that the utility model proposes: core holding unit 1, crack rock sample 2, high pressure syringe pump 3, air feed container 4 and water supply container 5, moisture trap 6 and gas meter 7.Wherein, core holding unit 1 comprises the clamper cylindrical shell, in the clamper cylindrical shell, be provided with vertically rubber sleeve, rubber sleeve has be used to the accommodating cavity that holds rock core to be measured, have certain interval between the outer wall of rubber sleeve and the clamper cylinder inboard wall and form ring-type confined pressure space, concrete structure and the principle of work of core holding unit 1 are prior art, are not described in detail at this.Crack rock sample 2 is arranged in the accommodating cavity, high pressure syringe pump 3 is connected with the confined pressure space of core holding unit 1 by the first hollow tubular 11, be used in core holding unit 1, adding confined pressure, be provided with the first controlled valve 21 at the first hollow tubular 11, be used for being communicated with and disconnection of control high pressure syringe pump 3 and confined pressure space.Air feed container 4 is arranged in parallel with water supply container 5, and be connected in the inlet end of core holding unit 1 by the second hollow tubular 12, in air feed container 4 contents gases at high pressure are housed, water supply container 5 contents are equipped with high-pressure water body, connecting line between air feed container 4 and the second hollow tubular 12 is provided with second switch valve 22, connecting line between water supply container 5 and the second hollow tubular 12 is provided with the 3rd controlled valve 23, is respectively applied to control being communicated with and disconnection of air feed container 4 and water supply container 5 and core holding unit 1.Moisture trap 6 setting of connecting with gas meter 7, moisture trap 6 is connected in the endpiece of core holding unit 1 by the 3rd hollow tubular 13, gas meter 7 is connected with moisture trap 6 by gas piping 14, an end that is gas piping 14 is connected with the upper port of moisture trap 6, its other end is connected with the lower port of gas meter 7, with air output and the aquifer yield of fracture detection rock sample.Be provided with the 4th controlled valve 24 at the 3rd hollow tubular 13, be used for air output and the aquifer yield of control core holding unit.Like this, the utility model has realized under lab carrying out Gas Reservoirs water enchroachment (invasion) dynamic similation research at the bottom of the Fractured by said structure design, has that test data is accurate, equipment simple, the advantage of easy operating.
Further, be respectively equipped with the first pressure transducer 31, the second pressure transducer 32 and the 3rd pressure transducer 33 at the first hollow tubular 11, the second hollow tubular 12 and the 3rd hollow tubular 13, for detection of the force value of each test point.
In the utility model, in order to satisfy experiment condition, the first hollow tubular 11, the second hollow tubular 12 and the 3rd hollow tubular 13 all adopt high pressure resistant hollow pipeline; The highest withstand voltage 70MPa that is of core holding unit 1, high pressure syringe pump 3, air feed container 4 and water supply container 5.
In the utility model an optional embodiment, the diameter of crack rock sample is 10cm, and length is 20cm.Certainly, the size of crack rock sample also can be selected according to actual conditions, and the utility model is not restricted this.
The utility model device principle of work and process are as follows:
Man-made fracture rock sample 2 is packed into behind the core holding unit 1, add confined pressure by high pressure syringe pump 3 to the crack rock sample 2 in the core holding unit 1, the simulation overburden pressure is closed the first controlled valve 21; Close the 3rd controlled valve 23 and the 4th controlled valve 24, open second switch valve 22, by the rock core hole input saturated air of air feed container 4 to rock sample 2, simulation Gas Reservoir virgin pressure, when saturated air to the equal balance of crack rock sample 2 rear and front end pressure is the required pressure of experiment, close second switch valve 22, so that crack rock sample 2 disconnects with air feed container 4 sources of the gas, be in the pressure system of Equilibrium; Water body in the water supply container 5 is pressurized to consistent with the rock core pore gas pressure, opens the 3rd controlled valve 23 and makes water body and gas-bearing formation keep being communicated with; Then, by the 24 control airshed simulation gas well exploitations of the 4th controlled valve, the Water Invasion Characteristics at the bottom of observation and the record Fractured in the Gas Reservoirs performance history.
The experimental technique of Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device may further comprise the steps at the bottom of employing the utility model Fractured:
The rock sample of choice experiment test;
Rock sample is carried out the man made seam, form the crack rock sample;
With the crack rock sample core holding unit of packing into, and add predetermined confined pressure;
In the rock core hole of crack rock sample, carry saturated air by the air feed container, when rock core pore pressure balance when testing desirable value, stop saturated air and close the air feed container;
The high-pressure water body of in water supply container, packing into, water supply container refers to withstand voltage 70MPa, volume is the rustless steel container of 1000ml, 2000ml or 5000ml.The high-pressure water body of packing into refers to be forced into the experiment predetermined pressure, such as 20MPa at the water supply container water of packing into.
Open water supply container, so that the saturated air in the core holding unit is communicated with water body;
By closing the first controlled valve, second switch valve and the 3rd controlled valve, open the 4th controlled valve, so that the crack rock sample discharges gas in the rock core hole from endpiece, record parameters data are until the experiment when the flow of endpiece is zero of gases at high pressure and high-pressure water body finishes.
Further, the rock sample of choice experiment test refers to selective rule piston-shaped free from flaw rock core, and the diameter of rock core is 10cm, and length is 20cm.
Further, rock sample being carried out the man made seam refers to make the inner crack that produces of rock core form the crack rock sample by making the seam instrument.
Further, with the crack rock sample core holding unit of packing into, and add predetermined confined pressure and comprise: described core holding unit the highest withstand voltage is 70MPa, and maximum temperature is 150 ℃; High pressure syringe pump is to the confined pressure space conveying high-pressure medium of core holding unit, be used for exerting pressure to the rock core that is wrapped in core holding unit, high pressure syringe pump is by the force value of computer controlled automatic high pressure syringe pump mesohigh medium, high-pressure medium is high-pressure water body or gases at high pressure, adding water or the gas that confined pressure uses only contacts with rubber sleeve, directly do not contact with core surface, with the accuracy that guarantees to measure; The overburden pressure that predetermined confined pressure value and rock core bear under the ground layer state is close, and its value is calculated and controlled by rock sample depth of stratum of living in, and its value can not change with the rock core pore pressure.
Further, in the rock core hole of crack rock sample, carry saturated air by the air feed container, when rock core pore pressure balance when testing desirable value, stop saturated air and close the air feed container comprising: the gases at high pressure in the air feed container are dry air or nitrogen; Rock core pore pressure balance refers to that gaseous tension is consistent in each position hole of rock core; The pore pressure size should be close with the original gas-bearing formation pressure of goal in research block; Close the second switch valve high-pressure air source and rock core are disconnected, rock sample is in the pressure system of self-equilibrating.
Further, by closing the first controlled valve and second switch valve, open the 3rd controlled valve, so that the crack rock sample discharges gas in the rock core hole from endpiece, record parameters data, until the experiment when the flow of endpiece is zero of gases at high pressure and high-pressure water body finishes to comprise: by the 4th controlled valve control airshed size, discharge gas and the water body of rock core hole inside with certain airshed; Record airshed, discharge, accumulative total airshed, accumulative total discharge, gas-bearing formation pressure, experimental period data; The record experiment parameter frequency be the interval per minute once.
Detailed explanation for the respective embodiments described above, its purpose only is the utility model is made an explanation, so that can understand better the utility model, but, it is to restriction of the present utility model that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments is mutual combination in any also, thereby form other embodiments, except clear and definite opposite description is arranged, these features should be understood to can be applied in any one embodiment, and also not only are confined to described embodiment.
Claims (4)
1. Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the Fractured is characterized in that described experimental provision comprises:
Core holding unit, comprise the clamper cylindrical shell, be provided with vertically rubber sleeve in described clamper cylindrical shell, described rubber sleeve has be used to the accommodating cavity that holds rock core to be measured, has certain interval between the outer wall of described rubber sleeve and the described clamper cylinder inboard wall and forms ring-type confined pressure space;
The crack rock sample is arranged in the described accommodating cavity;
High pressure syringe pump, be connected with the confined pressure space of described core holding unit by the first hollow tubular, be used in core holding unit, adding confined pressure, be provided with the first controlled valve at the first hollow tubular, be used for controlling being communicated with and disconnection of described high pressure syringe pump and described confined pressure space;
The air feed container and the water supply container that are arranged in parallel, be connected in the inlet end of described core holding unit by the second hollow tubular, in described air feed container contents gases at high pressure are housed, described water supply container content is equipped with high-pressure water body, connecting line between described air feed container and described the second hollow tubular is provided with the second switch valve, and the connecting line between described water supply container and described the second hollow tubular is provided with the 3rd controlled valve;
Moisture trap and gas meter that series connection arranges, described moisture trap is connected in the endpiece of described core holding unit by the 3rd hollow tubular, described gas meter is connected with described moisture trap by gas piping, is provided with the 4th controlled valve at described the 3rd hollow tubular.
2. Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the Fractured as claimed in claim 1, it is characterized in that, be respectively equipped with the first pressure transducer, the second pressure transducer and the 3rd pressure transducer at described the first hollow tubular, the second hollow tubular and the 3rd hollow tubular.
3. Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the Fractured as claimed in claim 1 is characterized in that the diameter of described crack rock sample is 10cm, and length is 20cm.
4. Gas Reservoirs water enchroachment (invasion) dynamic physical modeling experiments device at the bottom of the Fractured as claimed in claim 1 is characterized in that the highest withstand voltage 70MPa that is of described core holding unit, described high pressure syringe pump, described air feed container and described water supply container.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220405534 CN202814960U (en) | 2012-08-15 | 2012-08-15 | Physical simulation experimental device for water invasion performance of fissured gas reservoir with bottom water |
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| CN 201220405534 CN202814960U (en) | 2012-08-15 | 2012-08-15 | Physical simulation experimental device for water invasion performance of fissured gas reservoir with bottom water |
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| CN102830214A (en) * | 2012-08-15 | 2012-12-19 | 中国石油天然气股份有限公司 | Dynamic physical simulation experiment method for water invasion of fractured gas reservoir with bottom water and device thereof |
| CN104849428A (en) * | 2015-04-30 | 2015-08-19 | 华北科技学院 | Experimental device for simulating overlaying strata migration and water and sand bursting of underground coal mining |
| CN105372405A (en) * | 2014-08-22 | 2016-03-02 | 中国石油天然气股份有限公司 | Detection system of reservoir gas supply capacity and usage method |
| CN105604545A (en) * | 2015-12-17 | 2016-05-25 | 中国石油天然气股份有限公司 | Experimental device and method for simulating gas reservoir water invasion |
| CN108802329A (en) * | 2018-04-19 | 2018-11-13 | 山东科技大学 | A kind of shearing-two phase flow experiment box in Single Fracture, system and method |
| CN109101046A (en) * | 2018-08-01 | 2018-12-28 | 中国石油天然气股份有限公司 | Gas production flow control system is infused in gas storage physical analogy |
| CN109386275A (en) * | 2017-08-07 | 2019-02-26 | 中国石油化工股份有限公司 | The visual experimental apparatus and experimental method flowed in simulation rock crack |
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| CN102830214A (en) * | 2012-08-15 | 2012-12-19 | 中国石油天然气股份有限公司 | Dynamic physical simulation experiment method for water invasion of fractured gas reservoir with bottom water and device thereof |
| CN105372405A (en) * | 2014-08-22 | 2016-03-02 | 中国石油天然气股份有限公司 | Detection system of reservoir gas supply capacity and usage method |
| CN104849428A (en) * | 2015-04-30 | 2015-08-19 | 华北科技学院 | Experimental device for simulating overlaying strata migration and water and sand bursting of underground coal mining |
| CN104849428B (en) * | 2015-04-30 | 2016-03-30 | 华北科技学院 | The migration of a kind of simulate formation coal mining overlying strata and gushing water are burst sand experimental provision |
| CN105604545A (en) * | 2015-12-17 | 2016-05-25 | 中国石油天然气股份有限公司 | Experimental device and method for simulating gas reservoir water invasion |
| CN105604545B (en) * | 2015-12-17 | 2019-05-07 | 中国石油天然气股份有限公司 | A kind of experimental provision and method for simulating gas reservoir water enchroachment (invasion) |
| CN109386275A (en) * | 2017-08-07 | 2019-02-26 | 中国石油化工股份有限公司 | The visual experimental apparatus and experimental method flowed in simulation rock crack |
| CN109386275B (en) * | 2017-08-07 | 2022-02-11 | 中国石油化工股份有限公司 | Visual experiment device and method for simulating flow in rock crack |
| CN108802329B (en) * | 2018-04-19 | 2021-03-26 | 山东科技大学 | Shear-two-phase flow experiment box, system and method in single fracture |
| CN108802329A (en) * | 2018-04-19 | 2018-11-13 | 山东科技大学 | A kind of shearing-two phase flow experiment box in Single Fracture, system and method |
| CN109101046A (en) * | 2018-08-01 | 2018-12-28 | 中国石油天然气股份有限公司 | Gas production flow control system is infused in gas storage physical analogy |
| CN109101046B (en) * | 2018-08-01 | 2022-05-06 | 中国石油天然气股份有限公司 | Gas flow control system for gas storage physical simulation injection and production |
| CN112082945A (en) * | 2019-06-13 | 2020-12-15 | 中国石油天然气股份有限公司 | Prediction device and method for mobility of water layer water body of gas reservoir and controller |
| US20210150933A1 (en) * | 2020-11-20 | 2021-05-20 | Southwest Petroleum University | Simulation device and simulation method for gas reservoir exploitation |
| US11735064B2 (en) * | 2020-11-20 | 2023-08-22 | Southwest Petroleum University | Simulation device and simulation method for gas reservoir exploitation |
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