CN204330517U - Under High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus - Google Patents

Under High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus Download PDF

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CN204330517U
CN204330517U CN201520016031.6U CN201520016031U CN204330517U CN 204330517 U CN204330517 U CN 204330517U CN 201520016031 U CN201520016031 U CN 201520016031U CN 204330517 U CN204330517 U CN 204330517U
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water tank
air content
shale gas
water
conduit
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郭梅
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Beijing Tuopu Laibo Oil And Gas Field Development Technology Research Institute
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Abstract

Under the utility model discloses a kind of High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus, and it comprises: water tank (2), the chest (1) placing water tank (2), conduit (3), silicone tube (4), L-type support (5), LOAD CELLS (6), hook (7), water-collecting bag (8), signal wire (9), amplifier and A/D converter (10), computing machine (11) and direct supply (12); The utility model overcomes the shortcoming of the air content testing apparatus draining meter gas method of prior art, the work of shale gas site desorption can be carried out, shale gas regional evaluation, gas storage capability provide basic data, simultaneously to 30 shale gas sample Simultaneously test, can improve test efficiency.

Description

Under High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus
Technical field
Under the utility model relates to petroleum gas and exploratory development field, particularly High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus.
Background technology
Shale gas is that a kind of tax exists in shale, and be certainly conigenous the unconventional gas resources of storage, the important parameter evaluating its enrichment degree is shale gas air content.Whether that effectively will evaluate somewhere has industrialized prospect, must test air content evaluating data accurately, and these air content data are used for evaluating reservoir, resource evaluation and production forecast.Must understand shale air content, air content testing apparatus is to provide the only instrument of this data for this reason.Because Chinese shale reservoir buries deeply, reservoir pressure is large, under the factor of porosity condition of 3%-5%, tolerance in shale gas mesoporosity is far longer than the tolerance being adsorbed on pore surface, but the shale gas air content analytical instrument of routine is all based on Gas In Coalbed Gas Content method of testing, does not meet the character that shale is special.Therefore, shale gas tolerance testing apparatus just seems extremely important in exploratory development.
At present, domestic and international shale gas measurement of air content is the site desorption method the same with Gas In Coalbed Gas Content method of testing.Its theoretical foundation and experimental evidence are, the release rate of gas in coal petrography in early days in desorption process is directly proportional to the square root of time, the gas that lifting process loses in the wellbore can calculate accordingly, and total air content is then that early stage loss gas adds stripping gas and residual volume sum.
At present, domestic and international air content experimental apparatus for testing mainly contains full-automatic gas content (manufacture of Terratek company of the U.S.) and domestic on-the-spot content measurement equipment.Air content collection and metering method have two kinds of methods, and one is draining meter gas method, its operation steps 1, allows and separates the rock gas of sucking-off and suppress reach certain hour or certain pressure in solution cucurbitula; When 2, testing first sample, open desorb tank valve and the rock gas separating sucking-off is imported water-filled glass tube top with a scale, the water promoted in glass tube flows out, and waits and drains gas the volume that in rear reading glass tube, gas occupies, and how to close the valve that first is separated cucurbitula.The air content of dozens of sample is tested in test respectively by tank switching mode with a volume testing tube; 3, the water inside glass tube to be full of again before test second sample, repeat above testing procedure.Outfit glass tube of an instrument, need water-filling-experiment-water-filling repeatedly like this, the shale gas declined to desorb or the pore pressure of coal-seam gas is more applicable.If but for the shale gas air content method of testing under high pressure, because pore pressure is high, early stage, desorption rate was fast, and a glass tube meter is difficult to meet desorb test request.Another kind method separates the rock gas of sucking-off, and because later stage desorption rate is slow, the precision of mass flowmeter is difficult to reach test request.Therefore, gather and metering experimental provision in the urgent need to researching and developing shale gas air content under a kind of high pore pressure.
Utility model content
The purpose of this utility model is: the shortcoming overcoming above two kinds of air content testing apparatus draining meter gas methods, and the utility model provides shale gas air content testing apparatus under a kind of High Temperature High Pressure, can solve following problem:
(1) can carry out the work of shale gas site desorption, shale gas regional evaluation, gas storage capability provide basic data.
(2) simultaneously to 30 shale gas sample Simultaneously test, test efficiency can be improve.
The utility model solves air content under high pressure and tests the technical scheme taked and be:
Under a kind of High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus, and it comprises: water tank (2), placement water tank
(2) chest (1), conduit (3), silicone tube (4), L-type support (5), LOAD CELLS (6), hook (7), water-collecting bag (8), signal wire (9), amplifier and A/D converter (10), computing machine (11) and direct supply (12);
Described multiple water tank (2) is arranged in chest (1), two conduits (3) are installed at the top of water tank (2), keep the sealing of conduit (3) and water tank (2), the conduit (3) in left side is connected with solution cucurbitula, conduit (3) bottom on right side connects the bottom that the first silicone tube (4) falls to water tank (2), conduit (3) top on right side connects the second silicone tube (4) to water-collecting bag (8), water-collecting bag (8) hangs in LOAD CELLS (6) by hook (7), LOAD CELLS is fixed in L-type support (5), the capable support of L (5) is fixed in the top of chest (1), the signal wire (9) of LOAD CELLS is connected on amplifier and A/D converter (10), signal through conversion is connected with computing machine (11) by signal wire (9), direct supply (12) is connected with LOAD CELLS, to sensor power.
Wherein, described chest (1) is of a size of: long 80cm, wide 40cm, high 40cm; The diameter of water tank (2) is 5-15cm, is highly 10-50cm; Water tank (2) is acrylic material; Conduit (3) is stainless-steel tube; L-type support (5) is stainless steel; The range of LOAD CELLS (6) is that 3Kg, DC24V power, and 0-10mmV exports; Water-collecting bag (8) is plastics; Direct supply (12) is 24V direct supply.
Measure according to shale gas air content under High Temperature High Pressure of the present utility model and gather metering new equipment and to be collected by rock gas and measuring system and automatic data collection form.Wherein computer acquisition disposal system comprises the input and output of computer-processing software and data; Rock gas is collected and measuring system comprises water tank, collecting bag, LOAD CELLS, data A/D converter.The utility model is characterized in that the rock gas separating sucking-off forms slight pressure at airtight water tank top, promote water and enter the water-collecting bag hung in LOAD CELLS, water-collecting bag produces weight change and is detected by sensor, sensor signal is transferred to A/D converter, form numerical signal, numerical signal is by computer acquisition.Principle of the present utility model utilizes material balance principle, the volume that 1 milliliter of gas occupies equals the weight of 1 gram of water, and the weight of water is easy to metering, meter gaseous volume is converted into the weight of metering water, greatly improve measuring accuracy, Multi-example continuous acquisition simultaneously can be realized.
The beneficial effects of the utility model are:
A kind of shale air content desorb measurement collection and metering new equipment of nearly 30 samples are provided.This device adopts material balance principle and gravitational differentiation principle, cleverly the metering of gas volume is converted into the weight metering of water, greatly improves measuring accuracy.It is on-the-spot that the utility model transports exploration to by onboard system, carries out the experiment of exploration site desorption, can measure and study different regions gas-bearing property feature, the air content regularity of distribution and Exploration Potential ability to the rock gas of shale solution sucking-off.
Accompanying drawing explanation
Fig. 1 gathers and measuring apparatus schematic diagram according to shale gas air content test under High Temperature High Pressure of the present utility model.
In figure,
1-places the stainless steel chest (the long 80cm of this box sizes, wide 40cm, high 40cm can divide two rows to hold 10 water tanks altogether) of water tank 2;
2-water tank (diameter 15cm, acrylic material);
3-conduit (external diameter 3mm, internal diameter 2mm, stainless-steel tube);
4-silicone tube (external diameter 4mm, internal diameter 3mm);
5-L type support (stainless steel, long 80cm, wide 5cm, high 10cm);
6-LOAD CELLS (be S type LOAD CELLS, range 3Kg, DC24V powers, and 0-10mmV exports);
7-links up with;
8-water-collecting bag (capacity 1000ml, plastic material);
9-signal wire;
10-amplifier and A/D converter;
11-computing machine and software;
12-direct supply (24V).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Under High Temperature High Pressure, the connected mode of the collection of shale gas air content and metering new equipment is as follows: water tank 2 is put into stainless steel chest 1, two conduits 3 are filled at the top of 2, keep the sealing of 3 and water tank, the conduit in left side and solution cucurbitula are (no longer in the utility model, belong to mature equipment) connect, the conduit bottom on right side connects a pipeline 4 and falls to bottom water tank, conduit top, right side connects a pipeline 4 to water-collecting bag 8, water-collecting bag 8 hangs in LOAD CELLS 6 by hook 7, LOAD CELLS is fixed in L-type support 5, the capable support of L is fixed in the top of chest 1, the signal wire of LOAD CELLS is connected on amplifier and A/D converter 10, signal through conversion is connected with computing machine 11 by signal wire 9, direct supply 12 is connected with LOAD CELLS, to sensor power.
Under High Temperature High Pressure, the working method of the collection of shale gas air content and metering new equipment is as follows: the rock gas of coming from solution cucurbitula enters water tank by the conduit 3 of water tank top left side, density due to gas is less than the density of water, gas accumulation is at the top of water tank, form small pressure, high pressure drives the water of water tank power to flow out from the conduit on the flexible pipe fallen to bottom water tank right side bottom water tank, enter water-collecting bag, weight change is produced after water-collecting bag water inlet, LOAD CELLS perceives the change of weight, produce voltage signal 0-10mmV, voltage signal outputs on amplifier and A/D converter, the numerical signal of 0-10V is become through the signal amplified and change, a transmission computing machine, read by the acquisition software run in computing machine, write as file, preserve.
According to above-mentioned principle, under establishing a High Temperature High Pressure, the test of shale air content gathers and metering new equipment, has successfully carried out site desorption experimental work.Contrast with conventional method of analysis in certain shale gas air content project and show that this apparatus not only can complete on-the-spot 30 samples desorb simultaneously work smoothly, the experimental data provided is accurately credible, air content can be measured efficiently and easily, the data obtained than conventional air content desorption method are more convenient, and instrumentation is stronger.
In production scene, the rock gas drilled through out desorbs and measures its accumulative quantum of output from shale core.By image data, detect rock gas quantum of output thus determine shale gas air content.The utility model, primarily of computing machine, water tank, LOAD CELLS, water-collecting bag, data acquisition system (DAS) composition, can gather the test data of 30 samples simultaneously.Utilize this utility model can carry out air content analysis to the coal petrography drilled through or shale core, be shale gas resource evaluation, evaluating reservoir and the analysis of manufacturing capability provide basic data etc.Result can evaluate a regional shale gas resource potential and exploration prospect, and becomes a kind of new design with practicality, is applicable to shale gas exploratory development field and promotes the use of.
According to specific exemplary embodiment, the utility model is described herein.Suitable replacement is carried out or amendment will be apparent not departing to one skilled in the art under scope of the present utility model.Exemplary embodiment is only illustrative, instead of the restriction to scope of the present utility model, and scope of the present utility model is defined by appended claim.

Claims (2)

1. under High Temperature High Pressure, the test of shale gas air content gathers and a measuring apparatus, it is characterized in that comprising: water tank (2), the chest (1) placing water tank (2), conduit (3), silicone tube (4), L-type support (5), LOAD CELLS (6), hook (7), water-collecting bag (8), signal wire (9), amplifier and A/D converter (10), computing machine (11) and direct supply (12);
Described multiple water tank (2) is arranged in chest (1), two conduits (3) are installed at the top of water tank (2), keep the sealing of conduit (3) and water tank (2), the conduit (3) in left side is connected with solution cucurbitula, conduit (3) bottom on right side connects the bottom that the first silicone tube (4) falls to water tank (2), conduit (3) top on right side connects the second silicone tube (4) to water-collecting bag (8), water-collecting bag (8) hangs in LOAD CELLS (6) by hook (7), LOAD CELLS is fixed in L-type support (5), the capable support of L (5) is fixed in the top of chest (1), the signal wire (9) of LOAD CELLS is connected on amplifier and A/D converter (10), signal through conversion is connected with computing machine (11) by signal wire (9), direct supply (12) is connected with LOAD CELLS, to sensor power.
2. under High Temperature High Pressure as claimed in claim 1, the test of shale gas air content gathers and measuring apparatus water tank, it is characterized in that: described chest (1) is of a size of: long 80cm, wide 40cm, high 40cm; The diameter of water tank (2) is 5-15cm, is highly 10-50cm; Water tank (2) is acrylic material; Conduit (3) is stainless-steel tube; L-type support (5) is stainless steel; The range of LOAD CELLS (6) is that 3Kg, DC24V power, and 0-10mmV exports; Water-collecting bag (8) is plastics; Direct supply (12) is 24V direct supply.
CN201520016031.6U 2015-01-09 2015-01-09 Under High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus Active CN204330517U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105223099A (en) * 2015-10-29 2016-01-06 北京瑞莱博石油技术有限公司 Shale gas air content tester and method of testing thereof
CN106525637A (en) * 2016-12-27 2017-03-22 重庆矿产资源开发有限公司 Shale gas-content testing device and testing method
CN107144625A (en) * 2017-06-23 2017-09-08 国家地质实验测试中心 Gas hydrates drill core light hydrocarbon gas content parses test system and method
CN112033851A (en) * 2019-06-03 2020-12-04 中国石油天然气股份有限公司 System and method for measuring residual gas volume of hydrocarbon source rock and method for measuring migration gas volume

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105223099A (en) * 2015-10-29 2016-01-06 北京瑞莱博石油技术有限公司 Shale gas air content tester and method of testing thereof
CN105223099B (en) * 2015-10-29 2018-07-10 北京瑞莱博石油技术有限公司 Shale gas gassiness tester and its test method
CN106525637A (en) * 2016-12-27 2017-03-22 重庆矿产资源开发有限公司 Shale gas-content testing device and testing method
CN107144625A (en) * 2017-06-23 2017-09-08 国家地质实验测试中心 Gas hydrates drill core light hydrocarbon gas content parses test system and method
CN112033851A (en) * 2019-06-03 2020-12-04 中国石油天然气股份有限公司 System and method for measuring residual gas volume of hydrocarbon source rock and method for measuring migration gas volume

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20170720

Address after: 100041, room 2, building 3, building 30, Xing Xing street, Shijingshan District, Beijing,

Patentee after: Beijing Tuopu Laibo oil and gas field development technology research institute

Address before: 100080 No. 9, Da Lin Bei Road, Beijing, Haidian District, 5-2-102

Patentee before: Guo Mei