CN204461880U - Core breakthrough pressure proving installation - Google Patents
Core breakthrough pressure proving installation Download PDFInfo
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- CN204461880U CN204461880U CN201520004791.5U CN201520004791U CN204461880U CN 204461880 U CN204461880 U CN 204461880U CN 201520004791 U CN201520004791 U CN 201520004791U CN 204461880 U CN204461880 U CN 204461880U
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- Prior art keywords
- core
- hollow cavity
- pressure
- communicated
- proving installation
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- 238000009434 installation Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 239000011435 rock Substances 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 30
- 238000009736 wetting Methods 0.000 claims description 29
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 238000012360 testing method Methods 0.000 abstract description 34
- 239000007789 gas Substances 0.000 description 40
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
Core breakthrough pressure proving installation, comprising: the rock core fastener with hollow cavity, the accommodating and fixing core of cavity physical efficiency, and rock core fastener has first end and the second end; The liquid pipe be communicated with hollow cavity by the second end, liquid pipe is outside equipped with air-foam detector; The gas injection apparatus be communicated with hollow cavity, gas injection apparatus can to injecting gas in rock core fastener; By the air extractor that first end is communicated with hollow cavity, the gas of hollow cavity can be extracted out by air extractor.The air extractor of core breakthrough pressure proving installation of the present utility model by arranging, the hollow cavity of rock core fastener can be extracted out with the gas in the liquid be communicated with it pipe, make to be trapped in the bubble-break in liquid pipe, thus make test wait time shorten, improve testing time-effectiveness.
Description
Technical field
The utility model belongs to petroleum exploration field, is specifically related to core breakthrough pressure proving installation.
Background technology
Measuring the breakthrough pressure of core when saturated wetting fluid, is evaluate core to oil gas sealing ability important parameter, significant to the storage condition of research oil gas.
Conventional displacement process measures the breakthrough pressure of core at present.The party's ratio juris is by saturated for rock core wetting fluid (being generally local water or kerosene), the core of saturated wetting phase is loaded in rock core fastener, after confined pressure is applied to core, connect nonwetting fluid (being generally air or nitrogen) to rock core fastener entrance point, according to predetermined time interval, increase gaseous tension gradually.When its pressure is enough to the saturated fluid in displacement core, namely gas form continuous flow in the hole of core, and when endpiece has gas to break through effusion continuously, the gaseous tension of corresponding core entrance point is the breakthrough pressure of this core.
Because gas is for cannot see impalpable gas, needs to be used for detecting it by certain technological means during test and whether breaking through effusion.During actual test, arrange at core endpiece the liquid pipe that fills wetting fluid, liquid pipe is outside equipped with air-foam detector, when gas breakthrough is overflowed, can discharge through described liquid pipe, can bubble be produced at gas in the process of liquid pipe, thus the air-foam detector be arranged on outside liquid pipe detect.
When utilizing liquid pipe and air-foam detector to measure, Problems existing is: after completing the test of core breakthrough pressure, liquid Guan Zhonghui is detained has bubble, because air-foam detector is sensitiveer, after core is removed, it still can detect bubble, affects the test of next core sample.Therefore, before carrying out next core sample test, need standing a period of time to make bubble froth breaking, make test wait time lengthening, be unfavorable for batch testing, conventional efficient is low.
Utility model content
For prior art when testing core breakthrough pressure, exist because bubble residence causes the problem of test wait time lengthening, the utility model provides a kind of core breakthrough pressure proving installation, and this core breakthrough pressure proving installation adopted technical scheme that solves the problem is as follows:
Core breakthrough pressure proving installation, comprising:
Have the rock core fastener of hollow cavity, the accommodating and fixing core of described cavity physical efficiency, described rock core fastener has first end and the second end;
By the liquid pipe that described second end is communicated with described hollow cavity, described liquid pipe is outside equipped with air-foam detector;
By the gas injection apparatus that described first end is communicated with described hollow cavity, described gas injection apparatus can to injecting gas in described rock core fastener, with the saturated wetting fluid in core of displacement;
The air extractor be communicated with described hollow cavity, the gas of described hollow cavity can be extracted out by described air extractor.
Core breakthrough pressure proving installation as above, comprise: the wetting fluid injection device be communicated with described hollow cavity by described liquid pipe, described wetting fluid injection device can inject wetting fluid in described rock core fastener, to make the saturated wetting fluid of core be clamped in wherein.
Core breakthrough pressure proving installation as above, described air extractor comprises vacuum pump and the first operation valve, and described first operation valve is arranged on the pipeline that described vacuum pump is communicated with described hollow cavity.
Core breakthrough pressure proving installation as above, comprise: described gas injection apparatus comprises gas cylinder and the second operation valve, the pipeline that described gas cylinder is communicated with described cavity body is provided with tensimeter, and described tensimeter can detect the pressure of the gas in the hollow cavity of described first end.
Core breakthrough pressure proving installation as above, comprise: the confined pressure injection device be communicated with described hollow cavity, described confined pressure injection device comprises high-pressure pump and the 3rd operation valve, and described high-pressure pump by injecting the confined pressure of confined pressure medium to the core applying predetermined pressure be contained in wherein in described hollow cavity.
Core breakthrough pressure proving installation as above, comprising: temperature controller, and described temperature controller can carry out temperature control to the core be clamped in described rock core fastener.
Core breakthrough pressure proving installation as above, comprising: described wetting fluid injection device comprises high-pressure pump and the 4th operation valve, and described high-pressure pump is communicated with described hollow cavity by described liquid pipe.
Core breakthrough pressure proving installation as above, described hollow cavity is connected by described liquid pipe blowdown piping, described blowdown piping is provided with emptying valve.
By above technical scheme, the beneficial effects of the utility model are: by arranging air extractor, before testing, use air extractor to be extracted out with the gas in the liquid pipe be communicated with it by the hollow cavity of rock core fastener, make to be trapped in the bubble-break in liquid pipe, thus overcome prior art and need standing certain hour, test next time can be carried out after bubble voluntarily froth breaking, cause the deficiency of test wait time lengthening, thus make the test wait time shorten of the core breakthrough pressure proving installation of present embodiment, improve testing time-effectiveness.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the core breakthrough pressure proving installation of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1.Core breakthrough pressure proving installation, comprising: the rock core fastener 11 with hollow cavity 13, and described hollow cavity 13 can accommodating and fixing core 35, and described rock core fastener 11 has first end and the second end; The liquid pipe 29 be communicated with described hollow cavity 13, described liquid pipe 29 is outside equipped with air-foam detector 15; Described wetting fluid injection device is communicated with described hollow cavity 13 by described liquid pipe 29; By the gas injection apparatus that described first end is communicated with described hollow cavity 13, when after the saturated wetting fluid of core 35, described gas injection apparatus can to injecting gas in described rock core fastener 11, with the saturated wetting fluid in core 35 of displacement; By the air extractor that described first end is communicated with described hollow cavity 13, the gas of described hollow cavity 13 can be extracted out by described air extractor.
The beneficial effect of the core breakthrough pressure proving installation of present embodiment is: by arranging air extractor, before testing, use air extractor to be extracted out with the gas in the liquid pipe 29 be communicated with it by the hollow cavity 13 of rock core fastener 11, make to be trapped in the bubble-break in liquid pipe 29, thus overcome prior art and need standing certain hour, test next time can be carried out after bubble voluntarily froth breaking, cause the deficiency of test wait time lengthening, thus make the test wait time shorten of the core breakthrough pressure proving installation of present embodiment, improve testing time-effectiveness.
In order to make the saturated wetting fluid of core 35 to be measured, present embodiment also comprises: the wetting fluid injection device be communicated with described hollow cavity 13 by described liquid pipe 29, described wetting fluid injection device can inject wetting fluid in described rock core fastener 11, to make the saturated wetting fluid of core 35 be clamped in wherein, described wetting fluid injection device comprises high-pressure pump 17 and the 4th operation valve the 18, four operation valve 18 controls the wetting fluid injected.
The breakthrough pressure of core is gaseous tension when producing bubble, so the breakthrough pressure test of each core must treat that the complete emptying of bubble that a test produces is inchoate, otherwise after carrying out during a test, before the bubble be trapped in liquid pipe 29 can at the effect float downward of buoyancy when once testing, detected by air-foam detector 15, but now gas does not break through core in fact, cause final testing result distortion.And the bubble be trapped in liquid pipe 29 disappears need considerable time completely, its reason is: bubble passes into gas (present embodiment is the gas that gas injection apparatus injects to hollow cavity 13) produce to frothing agent (wetting fluid injected in hollow cavity 13 for wetting fluid device in present embodiment) solution, now gas is dispersed system, and the liquid film that gas shores frothing agent generation is dispersed system.After bubble is formed, the liquid that entraining air bubbles comes runs off downwards under gravity, and liquid film can be thinning gradually until disappear.But in the present embodiment, bubble volume is less, and without outer force-disturbance, thus make the environment residing for it comparatively stable, cause being trapped in liquid pipe 29 of its energy long-time stable.
Based on above-mentioned principle, present embodiment, by arranging air extractor, carries out pressure froth breaking to the bubble be trapped in liquid pipe 29.Described air extractor comprises vacuum pump 21 and the first operation valve 22, described first operation valve 22 is arranged on the pipeline that described vacuum pump 21 is communicated with described hollow cavity 13, open the first operation valve 22, start vacuum pump 21 gas in hollow cavity 13 is extracted out, pressure in hollow cavity 13 reduces, pressure in the liquid pipe 29 be communicated with it also decreases, and is trapped in bubble wherein and is bursting at the collision under the effect of inside and outside differential pressure, thus complete froth breaking.The test of the breakthrough pressure of next core can be carried out afterwards.
Described gas injection apparatus comprises gas cylinder 19 and the second operation valve 20, the pipeline that described gas cylinder 19 is communicated with described hollow cavity 13 is provided with tensimeter 31, described tensimeter 31 can detect the pressure of the gas in the hollow cavity 13 of described first end, when air-foam detector 15 detects in liquid pipe 29 have bubble, the gas inject pressure that now tensimeter 31 records is the breakthrough pressure of core 35.
Further, present embodiment also comprises: the confined pressure injection device be communicated with described hollow cavity 13, described confined pressure injection device comprises high-pressure pump 23 and the 3rd operation valve 24, and described high-pressure pump 23 to apply the confined pressure of predetermined pressure to the core 35 be contained in wherein by injecting confined pressure medium in described hollow cavity 13; In addition, present embodiment also comprises temperature controller 33, and described temperature controller 33 can carry out temperature control to the core 35 be clamped in described rock core fastener 11.Apply confined pressure to core 35 and core 35 is carried out temperature to control to be in order to real simulation ground environment, the confined pressure of applying can calculate according to following formula:
p
H＝0.010133(ρ
D-ρ
W)·H
Wherein: ρ
d-core 35 density, g/cm
2;
ρ
w-gas density, g/cm
2;
H-sampling depth, m.
In order to simulated formation temperature, can determine to be applied to the temperature on core 35 according to the data such as well testing, well logging.
In addition, hollow cavity 13 is connected by liquid pipe 29 blowdown piping 25, and described blowdown piping 25 is provided with emptying valve 27.During test, emptying valve 27 is opened, hollow cavity 13 near the second end is communicated with air by blowdown piping 25, and the hollow cavity 13 of close second end is maintained the standard atmospheric pressure, and the gas inject pressure recorded like this in the hollow cavity 13 of close first end is the breakthrough pressure of core 35.
Refer to Fig. 1.The workflow of the core breakthrough pressure proving installation of present embodiment is:
1), core 35 is loaded in the hollow cavity 13 of rock core fastener 11, close the 4th operation valve 18, first operation valve 22, second operation valve 20 and emptying valve 27, open the 3rd operation valve 24, start high-pressure pump 23, inject confined pressure medium by high-pressure pump 23 to hollow cavity 13, confined pressure is applied to core 35 wherein;
2) after, completing the applying of confined pressure, close the 4th operation valve 18, the 3rd operation valve 24, second operation valve 20 and emptying valve 27, open the first operation valve 22, the liquid pipe 29 that now hollow cavity 13 is communicated with it forms the space closed, start vacuum pump 21, gas in hollow cavity 13 and liquid pipe 29 is extracted out, is trapped in the bubble in liquid pipe 29 and vanishes under the effect of inside and outside differential pressure;
3), after froth breaking, close the first operation valve 22, the 3rd operation valve 24, second operation valve 20 and emptying valve 27, open the 4th operation valve 18, start high-pressure pump 17, in hollow cavity 13, inject wetting fluid;
4), when the saturated wetting fluid of core 35 being clamped in hollow cavity 13, close the first operation valve 22, the 3rd operation valve 24, the 4th operation valve 18, open the second operation valve 20 and emptying valve 27, start gas cylinder 19, in hollow cavity 13, injecting gas starts test, have bubble to produce when air-foam detector 15 detects in liquid pipe 29, now on tensimeter 31, the force value of display is the breakthrough pressure of core 35.
The core breakthrough pressure proving installation of present embodiment is by arranging air extractor, before testing, use air extractor to be extracted out with the gas in the liquid pipe 29 be communicated with it by the hollow cavity 13 of rock core fastener 11, make to be trapped in the bubble-break in liquid pipe 29, thus overcome prior art and need standing certain hour, test next time can be carried out after bubble voluntarily froth breaking, cause the deficiency of test wait time lengthening, thus make the test wait time shorten of the core breakthrough pressure proving installation of present embodiment, improve testing time-effectiveness.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (8)
1. core breakthrough pressure proving installation, is characterized in that comprising:
Have the rock core fastener (11) of hollow cavity (13), described hollow cavity (13) can accommodating and fixing core, and described rock core fastener (11) has first end and the second end;
By the liquid pipe (29) that described second end is communicated with described hollow cavity (13), described liquid pipe (29) is outside equipped with air-foam detector (15);
By the gas injection apparatus that described first end is communicated with described hollow cavity (13), described gas injection apparatus can to injecting gas in described rock core fastener (11);
The air extractor be communicated with described hollow cavity (13), the gas of described hollow cavity (13) can be extracted out by described air extractor.
2. core breakthrough pressure proving installation as claimed in claim 1, it is characterized in that comprising: the wetting fluid injection device be communicated with described hollow cavity (13) by described liquid pipe (29), described wetting fluid injection device can inject wetting fluid, to make the saturated wetting fluid of core be clamped in wherein in described rock core fastener (11).
3. core breakthrough pressure proving installation as claimed in claim 2, it is characterized in that: described air extractor comprises vacuum pump (21) and the first operation valve (22), described first operation valve (22) is arranged on the pipeline that described vacuum pump (21) is communicated with described hollow cavity (13).
4. core breakthrough pressure proving installation as claimed in claim 3, it is characterized in that comprising: described gas injection apparatus comprises gas cylinder (19) and the second operation valve (20), the pipeline that described gas cylinder (19) is communicated with described cavity body is provided with tensimeter (31), and described tensimeter (31) can detect the pressure of the gas in the hollow cavity (13) of described first end.
5. core breakthrough pressure proving installation as claimed in claim 4, it is characterized in that comprising: the confined pressure injection device be communicated with described hollow cavity (13), described confined pressure injection device comprises high-pressure pump (23) and the 3rd operation valve (24), and described high-pressure pump by injecting the confined pressure of confined pressure medium to the core applying predetermined pressure be contained in wherein in described hollow cavity (13).
6. core breakthrough pressure proving installation as claimed in claim 5, it is characterized in that comprising: temperature controller (33), described temperature controller (33) can carry out temperature control to the core be clamped in described rock core fastener (11).
7. core breakthrough pressure proving installation as claimed in claim 6, it is characterized in that comprising: described wetting fluid injection device comprises high-pressure pump (17) and the 4th operation valve (18), described high-pressure pump is communicated with described hollow cavity (13) by described liquid pipe (29).
8. core breakthrough pressure proving installation as claimed in claim 7, it is characterized in that: described hollow cavity (13) has blowdown piping (25) by the connection of described liquid pipe (29), described blowdown piping (25) is provided with emptying valve (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004791.5U CN204461880U (en) | 2015-01-04 | 2015-01-04 | Core breakthrough pressure proving installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004791.5U CN204461880U (en) | 2015-01-04 | 2015-01-04 | Core breakthrough pressure proving installation |
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| Publication Number | Publication Date |
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| CN204461880U true CN204461880U (en) | 2015-07-08 |
Family
ID=53668749
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| CN201520004791.5U Expired - Fee Related CN204461880U (en) | 2015-01-04 | 2015-01-04 | Core breakthrough pressure proving installation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547848A (en) * | 2016-01-13 | 2016-05-04 | 重庆科技学院 | Mixed core testing chamber and mud rock breakthrough pressure testing device |
| CN105928795A (en) * | 2016-06-15 | 2016-09-07 | 黑龙江科技大学 | Method and device for measuring pressure resistance and compression modulus of discrete materials |
| CN109254134A (en) * | 2017-07-12 | 2019-01-22 | 北京康普瑞基石油工程技术有限公司 | A kind of new method and equipment measuring Rock resistivity Indication of Oil-Gas breakthrough pressure |
| CN109425543A (en) * | 2017-08-31 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of two-way breakthrough pressure measurement device of rock sample and method |
| WO2019100812A1 (en) * | 2017-11-23 | 2019-05-31 | 中国矿业大学 | Gas escape pressure testing device and method |
| CN110044790A (en) * | 2019-04-10 | 2019-07-23 | 中国科学院地质与地球物理研究所 | A kind of measuring device and method of critical filling pressure |
| CN112557199A (en) * | 2019-09-25 | 2021-03-26 | 中国石油天然气股份有限公司 | Rock gas breakthrough pressure measuring device suitable for high-temperature and high-pressure conditions |
-
2015
- 2015-01-04 CN CN201520004791.5U patent/CN204461880U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547848B (en) * | 2016-01-13 | 2018-09-28 | 重庆科技学院 | A kind of mixing rock core test cabinet and mud stone breakthrough pressure test device |
| CN105547848A (en) * | 2016-01-13 | 2016-05-04 | 重庆科技学院 | Mixed core testing chamber and mud rock breakthrough pressure testing device |
| CN105928795A (en) * | 2016-06-15 | 2016-09-07 | 黑龙江科技大学 | Method and device for measuring pressure resistance and compression modulus of discrete materials |
| CN105928795B (en) * | 2016-06-15 | 2018-11-20 | 黑龙江科技大学 | Measure the crushing resistance and compression modulus device and method of granular media |
| CN109254134B (en) * | 2017-07-12 | 2021-12-31 | 北京康普瑞基石油工程技术有限公司 | Novel method and equipment for measuring rock resistance and indicating oil gas breakthrough pressure |
| CN109254134A (en) * | 2017-07-12 | 2019-01-22 | 北京康普瑞基石油工程技术有限公司 | A kind of new method and equipment measuring Rock resistivity Indication of Oil-Gas breakthrough pressure |
| CN109425543A (en) * | 2017-08-31 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of two-way breakthrough pressure measurement device of rock sample and method |
| WO2019100812A1 (en) * | 2017-11-23 | 2019-05-31 | 中国矿业大学 | Gas escape pressure testing device and method |
| RU2723232C1 (en) * | 2017-11-23 | 2020-06-09 | Чайна Юниверсити Оф Майнинг Энд Текнолоджи | Device and method of experimental determination of gas breakthrough pressure |
| AU2018372341B2 (en) * | 2017-11-23 | 2020-10-15 | China University Of Mining And Technology | Gas escape pressure testing device and method |
| CN110044790B (en) * | 2019-04-10 | 2020-06-19 | 中国科学院地质与地球物理研究所 | Device and method for measuring critical filling pressure |
| CN110044790A (en) * | 2019-04-10 | 2019-07-23 | 中国科学院地质与地球物理研究所 | A kind of measuring device and method of critical filling pressure |
| CN112557199A (en) * | 2019-09-25 | 2021-03-26 | 中国石油天然气股份有限公司 | Rock gas breakthrough pressure measuring device suitable for high-temperature and high-pressure conditions |
| CN112557199B (en) * | 2019-09-25 | 2022-10-04 | 中国石油天然气股份有限公司 | Rock gas breakthrough pressure measuring device suitable for high-temperature and high-pressure conditions |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |