CN207248869U - A kind of compact rock core vacuumizes saturation device - Google Patents
A kind of compact rock core vacuumizes saturation device Download PDFInfo
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- CN207248869U CN207248869U CN201721049122.5U CN201721049122U CN207248869U CN 207248869 U CN207248869 U CN 207248869U CN 201721049122 U CN201721049122 U CN 201721049122U CN 207248869 U CN207248869 U CN 207248869U
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- rock core
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- 239000011435 rock Substances 0.000 title claims abstract description 69
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 40
- 239000012267 brine Substances 0.000 claims abstract description 36
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 31
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 230000003139 buffering effect Effects 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
It the utility model is related to a kind of compact rock core and vacuumize saturation device, it includes：Circulation constant temperature water bath device；Rock core saturation cylinder, has inside and outside two layers；Outer layer is thermostatic chamber, is connected by upper and lower two connectors on cylinder body with circulation constant temperature water bath device；Internal layer is rock core saturation room, for placing rock core to be tested and formation brine；Formation brine storage cylinder；Buffer container cylinder, for filtering out the formation brine flow backwards in vacuum；And vacuum pump and force (forcing) pump；Wherein, the first triple valve of connection at the top of rock core saturation cylinder, an outlet of the first triple valve, formation brine storage cylinder, buffer container cylinder are respectively connected to the second triple valve；Another outlet of first triple valve, the bottom of formation brine storage cylinder, force (forcing) pump are respectively connected to six-way valve, and precision pressure gauge is set on six-way valve.The utility model can realize the saturated water process of compact rock core under simulated formation Temperature-pressure Conditions, and be greatly enhanced the saturated water effect of compact rock core.
Description
Technical field
It the utility model is related to and belong to oil-gas field development technical field, be suitable for high-temperature and high-pressure conditions more particularly, to one kind
Under compact rock core vacuumize saturation device, the saturated water process of compact rock core can be realized under simulated formation Temperature-pressure Conditions.
Background technology
In recent years, since the world is to the demand of petroleum resources and the progress of production technique, opening for fine and close oil and tight gas is made
Hair at home and abroad becomes one of hot fields.Due to " three low two is high " of compact reservoir, i.e. low-permeability, low-porosity, low pressure,
High capillary pressure and high effective stress so that compact reservoir development difficulty is very big, is extremely vulnerable, causes in compact reservoir exploitation
Close oil reservoir difficult water injection, production decline is fast, and stable yields is the significant problem that fine and close oily reservoir exploitation faces with recovery ratio is improved.It is existing
It is stage, Study In Reservoir physical property, porous from the analysis of compact reservoir rock core there is an urgent need for strengthening compact reservoir seepage flow mechanism research
Gas reservoir development mechanism under rock Properties of Water-gas Flowing Through Porous Media rule, complex geological condition, has important meaning for such oil-gas reservoir scientific development
Justice.
Core analysis is to recognize the necessary means of oil-gas Layer geologic feature.Oil and gas flow theoretical research, evaluation oil-gas Layer damage
Evil type and degree, pool description, reservoir engineering calculating and Comprehensive Evaluation of Reservoir etc. all must be set up the base in core analysis
On plinth.Therefore, core analysis technology is indispensable important component in oil-gas field development technology, and reservoir engineering
Starting point.
The content of the invention
The utility model main purpose is to provide a kind of compact rock core being suitable under high-temperature and high-pressure conditions and vacuumizes saturation
Device, the device is easy to assembly, easy to operate, and the saturated water mistake of compact rock core can be realized under simulated formation Temperature-pressure Conditions
Journey, and it is greatly enhanced the saturated water effect of compact rock core.
The above-mentioned technical problem of the utility model is mainly what is be addressed by following technical proposals：A kind of compact rock core
Saturation device is vacuumized, it includes：
Circulation constant temperature water bath device；
Rock core saturation cylinder, has inside and outside two layers；Outer layer is thermostatic chamber, passes through upper and lower two connectors on cylinder body and circulation
Constant temperature water bath apparatus connects；Internal layer is rock core saturation room, for placing rock core to be tested and formation brine；
Formation brine storage cylinder；
Buffer container cylinder, for filtering out the formation brine flow backwards in vacuum；
And vacuum pump and force (forcing) pump；
Wherein, the first triple valve of connection at the top of rock core saturation cylinder, an outlet of the first triple valve, formation brine storage cylinder,
Buffer container cylinder is respectively connected to the second triple valve；Another outlet of first triple valve, the bottom of formation brine storage cylinder, force (forcing) pump
Six-way valve is respectively connected to, precision pressure gauge is set on six-way valve.
Through the above technical solutions, the utility model can realize the saturation of compact rock core under simulated formation Temperature-pressure Conditions
Water process, and the saturated water effect of compact rock core is greatly enhanced, it is easy to assembly, it is easy to operate.
Brief description of the drawings
Attached drawing 1 is a kind of structure diagram of the utility model.
Wherein：1st, vacuum pump；2nd, buffer container cylinder；3rd, the second triple valve；4th, formation brine storage cylinder；5th, precision pressure
Table；6th, the first triple valve；7th, rock core saturation cylinder；8th, 14, two-way switch；9th, 13,15, beaker container；10th, circulation constant temperature water-bath
Device；11st, six-way valve；12nd, force (forcing) pump.
Embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：A kind of compact rock core of the utility model vacuumizes saturation device, and as shown in Figure 1, it includes：Circulation is permanent
Warm water bath apparatus 10, rock core saturation cylinder 7, formation brine storage cylinder 4, buffer container cylinder 2, and vacuum pump 1 and force (forcing) pump 12.
Rock core saturation cylinder 7, has inside and outside two layers；Outer layer is thermostatic chamber, by upper and lower two connectors on cylinder body with following
Ring constant temperature water bath apparatus 10 connects；Internal layer is rock core saturation room, for placing rock core to be tested and formation brine.
4 placement location of formation brine storage cylinder is higher than rock core saturation cylinder 7.
The first triple valve 6 of the top of rock core saturation cylinder 7 connection, an outlet of the first triple valve 6, formation brine storage cylinder 4, delay
Rush container tank 2 and be respectively connected to the second triple valve 3；Another outlet of first triple valve 6, the bottom of formation brine storage cylinder 4, pressurization
Pump 12 is respectively connected to six-way valve 11, and precision pressure gauge 5 is set on six-way valve 11.
For ease of understanding the spirit of the utility model, it is further illustrated as follows.
Example 1：Carry out vacuumizing saturated water test using the device, comprise the following steps that：By on 7 cylinder body of rock core saturation cylinder
Upper and lower two connectors are connected with circulation constant temperature water bath device 10, will connect the first triple valve 6, the stratum at the top of rock core saturation cylinder 7
The top of saltwater-storage cylinder 4, buffer container cylinder 2 are connected into the second triple valve 3 through pipeline respectively, and the top of buffer container cylinder 2 is through pipe
Line is connected with vacuum pump 1；First triple valve 6 at the top of rock core saturation cylinder 7, the bottom of formation brine storage cylinder 4, pressurization will be connected
Pump 12 is connected into six-way valve 11 through pipeline respectively, loads precision pressure gauge 5 on six-way valve 11, above instrument put when, stratum salt
The vertical height of water storage cylinder 4 is higher than rock core saturation cylinder 7, the air-tightness of check device after instrument and equipment connection is put；Will
Dry 5 pieces of weighted compact rock cores load rock core saturation cylinder 7, tighten cylinder cap；Close six-way valve 11 and formation brine storage cylinder 4
The valve of bottom connection, loads formation brine storage cylinder 4 by prepared formation brine, tightens cylinder cap, load formation brine
Volume is more than the sum of line volume between the core chamber of rock core saturation cylinder 7 and rock core saturation cylinder 7 and force (forcing) pump 12；Open threeway
The valve that valve 3,6, six-way valve 11 are connected with force (forcing) pump 12, closing two-way switch 8,14, six-way valve 11 are connected with precision pressure gauge 5
Valve, open vacuum pump 1 at the same time to the compact rock core in the formation brine in stratum saltwater-storage cylinder 4 and rock core saturation cylinder 7
Vacuumize 8~10h；After vacuumizing, the valve being connected is closed between the second triple valve 3 and 6, opens six-way valve 11 and stratum
The valve of 4 bottom of saltwater-storage cylinder connection, water flooding fill core chamber and the rock core saturation of rock core saturation cylinder 7 by self gravitation
Pipeline between cylinder 7 and force (forcing) pump 12；The valve that six-way valve 11 is connected with 4 bottom of formation brine storage cylinder is closed, it is logical to open six
The valve that valve 11 is connected with precision pressure gauge 5, opens force (forcing) pump 12, and the water flooding in beaker 13 is injected pipeline, is satisfied to rock core
Pressurize with cylinder 7, precision pressure gauge 5 monitors pressure changing, treats that pressure increases to 30MPa, stops pressurization, it is logical to close six
The valve that valve 11 is connected with force (forcing) pump 12, while circulation constant temperature water bath device 10 is opened, it is 60 DEG C to set thermostat temperature, keeps causing
10~12h of close rock core saturated water constant temperature and pressure state；After saturation, open six-way valve 11 and the valve that force (forcing) pump 12 is connected into
Row release, opens two-way and switchs 8,14 by rock core saturation cylinder 7 and buffer the water flooding discharge in container tank 2, connect with beaker 9,15
Liquid.
Example 2：Carry out vacuumizing saturated water test using the device, comprise the following steps that：By on 7 cylinder body of rock core saturation cylinder
Upper and lower two connectors are connected with circulation constant temperature water bath device 10, will connect the first triple valve 6, the stratum at the top of rock core saturation cylinder 7
The top of saltwater-storage cylinder 4, buffer container cylinder 2 are connected into the second triple valve 3 through pipeline respectively, and the top of buffer container cylinder 2 is through pipe
Line is connected with vacuum pump 1；First triple valve 6 at the top of rock core saturation cylinder 7, the bottom of formation brine storage cylinder 4, pressurization will be connected
Pump 12 is connected into six-way valve 11 through pipeline respectively, loads precision pressure gauge 5 on six-way valve 11, above instrument put when, stratum salt
The vertical height of water storage cylinder 4 is higher than rock core saturation cylinder 7, the air-tightness of check device after instrument and equipment connection is put；Will
Dry 8 pieces of weighted compact rock cores load rock core saturation cylinder 7, tighten cylinder cap；Close six-way valve 11 and formation brine storage cylinder 4
The valve of bottom connection, loads formation brine storage cylinder 4 by prepared formation brine, tightens cylinder cap, load formation brine
Volume is more than the sum of line volume between the core chamber of rock core saturation cylinder 7 and rock core saturation cylinder 7 and force (forcing) pump 12；Open threeway
The valve that valve 3,6, six-way valve 11 are connected with force (forcing) pump 12, closing two-way switch 8,14, six-way valve 11 are connected with precision pressure gauge 5
Valve, open vacuum pump 1 at the same time to the compact rock core in the formation brine in stratum saltwater-storage cylinder 4 and rock core saturation cylinder 7
Vacuumize 8~10h；After vacuumizing, the valve being connected is closed between the second triple valve 3 and 6, opens six-way valve 11 and stratum
The valve of 4 bottom of saltwater-storage cylinder connection, water flooding fill core chamber and the rock core saturation of rock core saturation cylinder 7 by self gravitation
Pipeline between cylinder 7 and force (forcing) pump 12；The valve that six-way valve 11 is connected with 4 bottom of formation brine storage cylinder is closed, it is logical to open six
The valve that valve 11 is connected with precision pressure gauge 5, opens force (forcing) pump 12, and the water flooding in beaker 13 is injected pipeline, is satisfied to rock core
Pressurize with cylinder 7, precision pressure gauge 5 monitors pressure changing, treats that pressure increases to 40MPa, stops pressurization, it is logical to close six
The valve that valve 11 is connected with force (forcing) pump 12, while circulation constant temperature water bath device 10 is opened, it is 80 DEG C to set thermostat temperature, keeps causing
10~12h of close rock core saturated water constant temperature and pressure state；After saturation, open six-way valve 11 and the valve that force (forcing) pump 12 is connected into
Row release, opens two-way and switchs 8,14 by rock core saturation cylinder 7 and buffer the water flooding discharge in container tank 2, connect with beaker 9,15
Liquid.
Embodiment described above is a kind of preferable scheme of the utility model, not the utility model is made any
Formal limitation, also has other variations and remodeling on the premise of without departing from the technical solution described in claim.
Claims (3)
1. a kind of compact rock core vacuumizes saturation device, it is characterised in that including：
Circulation constant temperature water bath device（10）；
Rock core saturation cylinder（7）, have inside and outside two layers；Outer layer is thermostatic chamber, passes through upper and lower two connectors on cylinder body and circulation
Constant temperature water bath apparatus（10）Connection；Internal layer is rock core saturation room, for placing rock core to be tested and formation brine；
Formation brine storage cylinder（4）；
Buffer container cylinder（2）, for filtering out the formation brine flow backwards in vacuum；
And vacuum pump（1）And force (forcing) pump（12）；
Wherein, rock core saturation cylinder（7）Top connects the first triple valve（6）, the first triple valve（6）One outlet, formation brine storage
Deposit cylinder（4）, buffer container cylinder（2）It is respectively connected to the second triple valve（3）；First triple valve（6）Another outlet, formation brine storage
Deposit cylinder（4）Bottom, force (forcing) pump（12）It is respectively connected to six-way valve（11）, six-way valve（11）On set precision pressure gauge（5）.
2. a kind of compact rock core according to claim 1 vacuumizes saturation device, it is characterised in that：The formation brine storage
Deposit cylinder（4）Placement location is higher than rock core saturation cylinder（7）.
3. a kind of compact rock core according to claim 1 or 2 vacuumizes saturation device, it is characterised in that：The buffering
Container tank（2）Bottom is connected with two-way switch（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049122.5U CN207248869U (en) | 2017-08-21 | 2017-08-21 | A kind of compact rock core vacuumizes saturation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049122.5U CN207248869U (en) | 2017-08-21 | 2017-08-21 | A kind of compact rock core vacuumizes saturation device |
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| Publication Number | Publication Date |
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| CN207248869U true CN207248869U (en) | 2018-04-17 |
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| CN201721049122.5U Expired - Fee Related CN207248869U (en) | 2017-08-21 | 2017-08-21 | A kind of compact rock core vacuumizes saturation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030783A (en) * | 2018-08-21 | 2018-12-18 | 西南石油大学 | A kind of rock-fluid reciprocation experimental system for simulating and method |
| CN111751180A (en) * | 2020-06-24 | 2020-10-09 | 中国石油天然气股份有限公司 | Ultra-low permeability rock core vacuumizing and pressurizing saturation device |
| CN114000865A (en) * | 2021-09-14 | 2022-02-01 | 中海油能源发展股份有限公司 | Full-automatic vacuumizing saturation system for dense rock and using method thereof |
| CN118518525A (en) * | 2024-07-19 | 2024-08-20 | 中国科学院广州地球化学研究所 | Detection device and detection method for saturated brine of rock core |
-
2017
- 2017-08-21 CN CN201721049122.5U patent/CN207248869U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030783A (en) * | 2018-08-21 | 2018-12-18 | 西南石油大学 | A kind of rock-fluid reciprocation experimental system for simulating and method |
| CN111751180A (en) * | 2020-06-24 | 2020-10-09 | 中国石油天然气股份有限公司 | Ultra-low permeability rock core vacuumizing and pressurizing saturation device |
| CN111751180B (en) * | 2020-06-24 | 2023-09-26 | 中国石油天然气股份有限公司 | Ultra-low permeability core vacuumizing pressurizing saturation device |
| CN114000865A (en) * | 2021-09-14 | 2022-02-01 | 中海油能源发展股份有限公司 | Full-automatic vacuumizing saturation system for dense rock and using method thereof |
| CN114000865B (en) * | 2021-09-14 | 2023-09-01 | 中海油能源发展股份有限公司 | Full-automatic vacuum-pumping saturation system for tight rock and application method of full-automatic vacuum-pumping saturation system |
| CN118518525A (en) * | 2024-07-19 | 2024-08-20 | 中国科学院广州地球化学研究所 | Detection device and detection method for saturated brine of rock core |
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Granted publication date: 20180417 Termination date: 20190821 |