CN201730615U - Evacuating saturation device for testing rock porosity - Google Patents
Evacuating saturation device for testing rock porosity Download PDFInfo
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- CN201730615U CN201730615U CN2010202453431U CN201020245343U CN201730615U CN 201730615 U CN201730615 U CN 201730615U CN 2010202453431 U CN2010202453431 U CN 2010202453431U CN 201020245343 U CN201020245343 U CN 201020245343U CN 201730615 U CN201730615 U CN 201730615U
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Abstract
The utility model relates to an evacuating saturation device for testing rock porosity, which comprises a sample chamber, a liquid storage tank, a buffer, a vacuum pump, a liquid reserve tank and a pressurizer. The buffer is disposed between the sample chamber and the vacuum pump. When the device is used for evacuation and saturation operations, saturated medium flows into the sample chamber from the liquid storage container to completely submerge rock samples and fully fill the sample chamber, then excessive liquid is drained into the buffer, the problem that ethanol returns to a vacuum pump to easily cause damage to a vacuum device during the procedure of testing evacuation and saturation of samples by saturated ethanol method can be better solved, and the service life of the vacuum device can be effectively prolonged.
Description
Technical field:
The utility model relates to a kind of rock porosity testing arrangement.
Background technology:
The low hole that the oil field prospecting development object is faced, hypotonic, low abundance reservoir get more and more, and fine and close rock reservoir sample vacuumizes and saturation element more and more becomes one of key factor that influences the rock porosity test mass.In recent years, in order to adapt to the needs of low permeability reservoir exploration and development, laboratory, domestic oil field is on the basis of conventional rock porosity measuring technology, all in development high pressure one high vacuum rock porosity measuring technology.Go in order to allow tested media penetrate into better in the active porosity of rock, saturated Ethanol Method degree of porosity measuring technology has been developed in increasing laboratory on the basis of traditional saturated kerosene method degree of porosity measuring technology.Mix the back reduction vacuum pump problem in application life with vacuum pump though adopt kerosene also to exist kerosene to flow into vacuum pump as saturated media, but because of kerosene and pumping fluid nature difference are not very big, this influence is not obvious in the test job of actual rock sample degree of porosity, the vacuum extractor that common 1-2 just need more renew.And the physicochemical properties of ethanol and kerosene are widely different, after flowing into vacuum pump and pumping fluid mixes, ethanol can greatly change the characteristic of pumping fluid, influence the vacuum of degree of porosity test evacuator, usually be no more than three months the application life of vacuum pump, and saturated Ethanol Method degree of porosity measuring technology is difficult to large-scale promotion application aborning.
The utility model content:
In order to solve existing technical problem in the background technology, the utility model provides a kind of unnecessary saturated liquid is compiled earlier to store, prevent that unnecessary saturated liquid from flowing into vacuum pump, thus the fine and close rock degree of porosity of the hyposmosis testing arrangement of effectively avoiding vacuum pump damage phenomenon to take place.
For solving the problems of the technologies described above, the technical solution of the utility model is: rock porosity is tested with the saturation device of finding time, comprise sample room, fluid reservoir, snubber, vacuum pump, be equipped with flow container, water booster system, two valves about the top of sample room connects by the threeway pipeline, wherein the other end of right valve connects two valves up and down by the threeway pipeline, the other end pipeline of last valve connects water booster system, the other end pipeline of lower valve connects and is equipped with flow container, and water booster system and last valve reach to be equipped with between flow container and the lower valve pressure meter is set respectively; The other end pipeline of left side valve connects the inlet of snubber, the outlet of snubber is provided with outlet valve, the other end pipeline of outlet valve connects a threeway, the two ends in addition of threeway pipeline respectively connect fluid reservoir top valve and vacuum pump, the bottom of fluid reservoir is connected with the bottom line of sample room, and by-pass valve control is set in connecting line, the bottom of sample room is provided with blowoff valve.
The utlity model has following beneficial effect: the utility model is by being provided with snubber between vacuum pump and sample room, when saturated media flows into the sample room and reaches complete submergence rock sample and be full of the sample room from liquid storage container after, superfluous liquid will be discharged in the snubber, having solved saturated Ethanol Method specimen preferably finds time and saturation element, alcohol reflux to vacuum pump easily causes the problem of vacuum plant damage, the application life of effectively having improved vacuum plant.
Description of drawings:
Fig. 1: saturated Ethanol Method effecive porosity testing process.
Fig. 2: structural representation of the present utility model.
Sample room 1, fluid reservoir 2, snubber 3, vacuum pump 4, be equipped with flow container 5, water booster system 6, fluid reservoir top valve 7, snubber outlet valve 8, left valve 9, right valve 10, go up the blowoff valve 14 of by-pass valve control 13, sample room between valve 11, lower valve 12, sample room and fluid reservoir.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Adopt main flow process that saturated Ethanol Method measures the rock effecive porosity (m1 dry core sample quality as shown in Figure 1; The rock sample quality of m2 saturation testing medium; The saturated rock sample quality of m3 weighing in tested media), pumping high vacuum wherein, suppress saturated, these three steps of high temperature constant voltage 16h and finish in the saturation device of finding time in the rock porosity test.
By shown in Figure 2, this rock porosity is tested with the saturation device of finding time, comprise sample room 1, fluid reservoir 2, snubber 3, vacuum pump 4, be equipped with flow container 5, water booster system 6, two valves 9,10 about the top of sample room 1 connects by the threeway pipeline, the other end of wherein right valve 10 connects two valves 11,12 up and down by the threeway pipeline, the other end pipeline of last valve 11 connects water booster system 6, the other end pipeline of lower valve 12 connects and is equipped with flow container 5, and water booster system 6 and last valve 11 reach to be equipped with between flow container 5 and the lower valve 12 pressure meter is set respectively; The other end pipeline of left side valve 9 connects the inlet of snubber 3, and the outlet of snubber 3 is provided with outlet valve 8, and the other end pipeline of outlet valve 8 connects a threeway, and the two ends in addition of threeway pipeline respectively connect fluid reservoir top valve 7 and vacuum pump 4; The bottom of fluid reservoir 2 is connected with the bottom line of sample room 1, and by-pass valve control 13 is set in connecting line, and the bottom of sample room is provided with blowoff valve 14.
The concrete operations step of this saturation device of finding time:
1, the dress sample is closed all valves;
2, pipette is inserted in the working solution (absolute ethyl alcohol) that is equipped with flow container 5, opened valve 12, valve 10, valve 13, observe fluid reservoir 2 liquid levels simultaneously;
3, open valve 7, the sample room 1 of finding time, the fluid reservoir 2 of finding time simultaneously after being full of in the fluid reservoir 2;
4, open sample room 1 dress sample, close sample room 1 after finishing;
5, open valve 13, valve-off 7 is opened valve 8,9 simultaneously, tapping in sample room 1 (absolute ethyl alcohol);
6, observe snubber, as there being liquid outflow interpret sample chamber full in the snubber, valve-off 7,13 immediately;
7, to sample room find time (vacuumizing), make it reach certain vacuum;
8, find time behind the certain hour, valve-off 11 is closed vacuum pump switch, opens valve 9, valve 12, vacuum meter can be made zero, and make zero back valve-off 9, valve 12 are suppressed to the sample room, open valve 10, open valve 11;
9, start pressure device, to the sample room pressurising, while observation sample chamber pressure table;
10, finish to suppress, open water booster system and pressurize, valve-off 10,11.
The application's the saturation device of finding time has increased snubber between vacuum pump and device vacuum-pumping pipeline, like this when finishing vacuum pumping unlatching hold-up pipe valve, unnecessary saturated solution cognition stores in snubber, can oppositely not flow into vacuum pump, played and prevented that liquid from flowing into the effect of vacuum pump, effectively avoided the generation of vacuum pump damage phenomenon, the application life of having improved vacuum plant.
Applicant's rock porosity of development and design voluntarily tests with the saturation device of finding time, come into operation on central laboratory of Exploration Development Inst., Daqing Oil Field Co Ltd. rock with large diameter lacunarity analysis hilllock and conventional rock porosity analysis hilllock at present, successively finishing Daqing Oilfield Company covers tower wood outward and examines the lattice basin, Qinghai Oil Field, oil field, Tarim Basin, Xinjiang, Daqing Oilfield Company deep gas exploration block amounts to more than 60 mouthful of well, the degree of porosity test assignment of 310 polylith major diameter rock samples, under the situation that does not have to increase the analyst, degree of porosity sample analysis work efficiency has improved 2 times.Obtaining main effect is:
(1) a vacuum pump damage accident, degree of porosity test data good reproducibility did not take place in half a year.
(2) fine and close rock degree of porosity test result, rock porosity on average improves 0.5%.
The application's the saturation device of finding time detects the rock porosity sample of diameter at Φ 2.5cm-Φ 12cm, analytical error can be controlled in ± 0.3% in, the vacuum of saturation device can reach 6 * 10
-2Pa on average improves more than 0.5% less than the conventional degree of porosity test result of the fine and close rock of 1md in permeability.
Claims (1)
1. a rock porosity is tested with the saturation device of finding time, comprise sample room (1), fluid reservoir (2), snubber (3), vacuum pump (4), be equipped with flow container (5), water booster system (6), two valves (9 about the top of sample room (1) connects by the threeway pipeline, 10), the other end of wherein right valve (10) connects two valves (11 up and down by the threeway pipeline, 12), the other end pipeline of last valve (11) connects water booster system (6), the other end pipeline of lower valve (12) connects and is equipped with flow container (5), and water booster system (6) and last valve (11) reach to be equipped with between flow container (5) and the lower valve (12) pressure meter is set respectively; It is characterized in that: the other end pipeline of left valve (9) connects the inlet of snubber (3), the outlet of snubber (3) is provided with outlet valve (8), the other end pipeline of outlet valve (8) connects a threeway, and the two ends in addition of threeway pipeline respectively connect fluid reservoir top valve (7) and vacuum pump (4); The bottom of fluid reservoir (2) is connected with the bottom line of sample room (1), and in connecting line by-pass valve control is set (13), and the bottom of sample room is provided with blowoff valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202453431U CN201730615U (en) | 2010-06-26 | 2010-06-26 | Evacuating saturation device for testing rock porosity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202453431U CN201730615U (en) | 2010-06-26 | 2010-06-26 | Evacuating saturation device for testing rock porosity |
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| CN201730615U true CN201730615U (en) | 2011-02-02 |
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| CN2010202453431U Expired - Lifetime CN201730615U (en) | 2010-06-26 | 2010-06-26 | Evacuating saturation device for testing rock porosity |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841046A (en) * | 2012-09-20 | 2012-12-26 | 中国石油大港油田勘探开发研究院 | Method for measuring rock porosity and measuring device |
| CN103048261A (en) * | 2013-01-21 | 2013-04-17 | 中国科学院武汉岩土力学研究所 | Device and method for researching rock physical property parameter change under action of acid fluid |
| CN104251790A (en) * | 2014-10-09 | 2014-12-31 | 中国地质大学（武汉） | Self-water injection type rock and soil sample saturator |
| CN108956368A (en) * | 2018-07-03 | 2018-12-07 | 中国石油天然气股份有限公司 | A kind of rock gas saturation measurement system and method |
| CN109374497A (en) * | 2018-10-29 | 2019-02-22 | 河海大学 | A kind of rock micropore structure test method |
| CN110057737A (en) * | 2019-04-10 | 2019-07-26 | 中国科学院地质与地球物理研究所 | It is a kind of for providing the fluid pressure supply device and method of constant pressure |
| CN111693433A (en) * | 2020-06-08 | 2020-09-22 | 中国石油天然气股份有限公司 | Core vacuumizing and pressurizing saturated water device and method |
| CN112394017A (en) * | 2020-05-21 | 2021-02-23 | 成都理工大学 | Gas-measuring porosity instrument suitable for high organic matter minerals and use method |
| CN113092335A (en) * | 2021-04-02 | 2021-07-09 | 成都理工大学 | Novel method for testing porosity of shale gas reservoir based on pressurized saturated alcohol |
| CN114577694A (en) * | 2020-12-02 | 2022-06-03 | 中国石油化工股份有限公司 | Rock quantitative saturation device and experimental method |
-
2010
- 2010-06-26 CN CN2010202453431U patent/CN201730615U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841046A (en) * | 2012-09-20 | 2012-12-26 | 中国石油大港油田勘探开发研究院 | Method for measuring rock porosity and measuring device |
| CN102841046B (en) * | 2012-09-20 | 2014-10-29 | 中国石油大港油田勘探开发研究院 | Method for measuring rock porosity and measuring device |
| CN103048261A (en) * | 2013-01-21 | 2013-04-17 | 中国科学院武汉岩土力学研究所 | Device and method for researching rock physical property parameter change under action of acid fluid |
| CN104251790A (en) * | 2014-10-09 | 2014-12-31 | 中国地质大学（武汉） | Self-water injection type rock and soil sample saturator |
| CN104251790B (en) * | 2014-10-09 | 2017-12-29 | 中国地质大学（武汉） | Automatic water-filling formula ground sample saturator |
| CN108956368A (en) * | 2018-07-03 | 2018-12-07 | 中国石油天然气股份有限公司 | A kind of rock gas saturation measurement system and method |
| CN109374497A (en) * | 2018-10-29 | 2019-02-22 | 河海大学 | A kind of rock micropore structure test method |
| CN110057737A (en) * | 2019-04-10 | 2019-07-26 | 中国科学院地质与地球物理研究所 | It is a kind of for providing the fluid pressure supply device and method of constant pressure |
| CN112394017A (en) * | 2020-05-21 | 2021-02-23 | 成都理工大学 | Gas-measuring porosity instrument suitable for high organic matter minerals and use method |
| CN111693433A (en) * | 2020-06-08 | 2020-09-22 | 中国石油天然气股份有限公司 | Core vacuumizing and pressurizing saturated water device and method |
| CN114577694A (en) * | 2020-12-02 | 2022-06-03 | 中国石油化工股份有限公司 | Rock quantitative saturation device and experimental method |
| CN113092335A (en) * | 2021-04-02 | 2021-07-09 | 成都理工大学 | Novel method for testing porosity of shale gas reservoir based on pressurized saturated alcohol |
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Granted publication date: 20110202 |