CN205826624U - A kind of long cores hydrocarbon gas drives experimental provision - Google Patents
A kind of long cores hydrocarbon gas drives experimental provision Download PDFInfo
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- CN205826624U CN205826624U CN201620571749.6U CN201620571749U CN205826624U CN 205826624 U CN205826624 U CN 205826624U CN 201620571749 U CN201620571749 U CN 201620571749U CN 205826624 U CN205826624 U CN 205826624U
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- pressure
- hydrocarbon gas
- long cores
- experimental provision
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Abstract
This utility model is to drive experimental provision about a kind of long cores hydrocarbon gas, including injection pump, pressure transducer, double-deck tetrafluoro cladding O, core holding unit, seal nipple, air pressure valve, couveuse, pressure reduction analyzes induction apparatus, austenite ferrite two phase stainless steel steel cylinder, pressure balance system, plunger displacement pump, back-pressure valve, gasometer, three phase separator, thermal insulation coatings, rubber tube, circulating pump, device for storing liquid, fluid reservoir and various connection pipeline composition.Described long cores hydrocarbon gas drive system, mainly formed injection displacement system by four parts, pressure reduction analyzes system, ring pressure tracking system, gas-liquid metering system, first passing through injection displacement system makes rock core saturated, afterwards under the effect of injection pump, the hydrocarbon gas is injected in airtight good core holding unit, pressure reduction analysis system makes the pressure reduction flowed in and out keep stable, ring pressure tracking system follows the tracks of the peripheral pressure of rock core surrounding rubber package set, prevent from injecting displacing fluid to flow through from short circuit between rock core and rubber sleeve, liquid phase after the hydrocarbon gas is driven long cores by metering system separates, metering gas phase and the volume of liquid phase respectively, recovery ratio is calculated for afterwards, displacement efficiency also carries out the hydrocarbon gas and drives the evaluation of effect.
Description
Technical field
This utility model is a kind of mensuration under formation condition, and the hydrocarbon gas drives the system of the efficiency of rock core Crude Oil, special
Do not relate to the experimental provision that the long cores hydrocarbon gas drives, for effective Simulation of Crude Oil actual flow in oil reservoir in laboratory conditions
Situation, the characteristic utilizing the hydrocarbon gas easily to reach critical flow easily reaches the feature of mixed phase, simulates note after contacting with crude oil with the hydrocarbon gas
Enter the hydrocarbon gas for tertiary oil recovery, determine when the mode of optimum is to improve recovery ratio and gas displacement crude oil, residual oil saturation
Determine and asphaltene precipitation that gas displacement crude oil occurs or impact on reservoir permeability during dissolution of minerals.
Utilize pressure change numerical value to determine formation fluid migration velocity saturated in rock core, true by means of chromatograph
Determining gas-oil ratio, determine the efficiency of the hydrocarbon gas displacement of reservoir oil with this, the hydrocarbon gas drives the determination of residual oil saturation, and it is real that this utility model belongs to oil gas
Test field tests.
Background technology
Along with constantly carrying out of oilfield exploitation procedure, the conventional water injection technology used can not meet and improved displacement journey
Degree and the requirement of raising recovery ratio, the oil gas field found the most in the last few years broadly falls into hypotonic or even Oil in Super-low Permeability substantially
Category, stratum energy is not enough, and owing to geographical position can not carry out the exploitation of water filling, the recovery ratio in oil field is on the low side.Current scene
Test and in-house laboratory investigation show, when carrying out the displacement of reservoir oil with the hydrocarbon gas in a supercritical state, easily reach mixed phase, thus reduce
Surface tension and viscosity, improve the seepage flow condition of formation fluid, thus improve recovery ratio, and the test of current indoor long cores is used
The rubber seal of O carry out, but under high-temperature and high-pressure conditions, rubber sleeve pressure measurement is pointed out and is easily occurred poorly sealed, leads
Causing gas leakage, the success to experiment impacts, and existing long core test system can not effectively carry out in rock core
Portion's multipoint pressure measure, it is impossible to effectively carry out the determination of pressure oscillation numerical value, it is impossible to carry out other experiment after having tested, profit
The intelligent processing method operated is carried out with singlechip technology and computer.
Utility model content
The purpose of this utility model is to provide a kind of long cores hydrocarbon gas and drives experimental provision, solve existing long cores model because of
The shortcoming using lead set sealing means, it is impossible to effectively measure the situation of rock core pressure fluctuating in inner and existing sealing means
The problem that can not effectively seal long rock core holder.Can be solved by this utility model, exist at core holding unit pressure tap
The few problem of the internal pressure tap of poorly sealed and core holding unit, and it is real to use computer can measure pressure tap accurately
Time change value of pressure；Utilize confined pressure pump to provide pressure to be connected with computer, can enter according to the set pressure reduction of existing setting
Row is automatically adjusted operation, simplifies experimental procedure, the rock core after having tested may be used for after other test.
The purpose of this utility model is achieved in the following ways, and a kind of long cores hydrocarbon gas drives experimental provision, including note
Enter pump, device for storing liquid, there is core holding unit, couveuse, the long cores model mechanism of pressure balance system composition, there is pipe
Line, circulating pump, pressure reduction analyze induction apparatus composition confined pressure mechanism, back-pressure valve and drive pump composition back pressure mechanism, auxiliary equipment by
Gasometer, three phase separator and pipeline composition.
Described long rock core holder has inflow and outflow pressure reduction regulation system.
Described core holding unit surface has insulation material.
Described long rock core holder jacket casing material is austenite-ferrite two phase stainless steel.
The bottom of described rubber sleeve there are two pressure measurement nodes.
The material that described rubber sleeve uses is four fluorubber.
Described sealing O, uses double-deck tetrafluoro cladding O.
It is close that the sealing of the austenite-ferrite two-phase stainless steel cylinder that this utility model uses uses four fluorubber
Envelope, has pressure reduction regulation system, because sealing and rubber sleeve and stainless steel cylinder in regulation experimentation above stainless steel cylinder
The unstable situation of the inflow and outflow pressure reduction that causes of contact situation.
Parameter indexs more of the present utility model
(1) operating pressure and the operating temperature of native system is respectively 70MPa, 200 DEG C, temperature-controlled precision 0.1 DEG C.
(2) using rock core specification Φ 25 × 1000mm, pressure tap is two and is equally spaced.
(3) changing according to flow in experimentation and pressure reduction, computer system records formation data form automatically.
The delta pressure accuracy of described circulating pump is 0.01MPa.
Described regulation back-pressure valve uses CV210 type.
Described ring pressure tracking system prevents injecting fluid short circuit between rubber sleeve and stainless steel tube and flows through.
Described pressure balance system, has two sleeve pressure sensor, can accurately measure pressure.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
In figure, 1 injection pump, 2 pressure transducers, 3 double-deck tetrafluoro cladding O, 4 core holding units, 5 seal nipples, 6 gas
Pressure valve, 7 couveuses, 8 pressure reduction analysis induction apparatuss, 9 austenite-ferrite two phase stainless steel steel cylinders, 10 rings pressure tracking systems 11 are pressed
Difference balance system, 12 computer 13 plunger displacement pumps, 14 back-pressure valves, 15 snap valve, 16 gasometers, 17 three phase separators, and 18 insulations are coated with
Material, 19 rubber tubes, 20 circulating pumps, 21 device for storing liquid, 22 fluid reservoirs.
Detailed description of the invention
Illustrate implementation process of the present utility model in conjunction with Figure of description, and be described in detail, but be not limited to
This.
As shown in Figure 1, this utility model includes injection pump 1, if having the device for storing liquid 18 of equipment for drying, has rock core folder
Holder 4, couveuse 7, pressure balance system 10 composition long cores model, if having trunk pipeline, circulating pump 17, pressure reduction analysis
The confined pressure mechanism of induction apparatus 8 composition, back-pressure valve 12 and driving pump 11 form back pressure mechanism, and auxiliary equipment is by gasometer 13, three-phase
Separator 14 and pipeline etc. form, and have the rubber sleeve 16 carrying out sealing, two pressures are distributed on rubber sleeve 16 in core holding unit 4
Power measuring point, rubber sleeve outer wrap has austenite-ferrite two phase stainless steel steel cylinder, pressure sensor data 2, pressure reduction analysis sense
Answering device 8 and pressure balance system 10, utilize output end signal line to transfer data to computer, device for storing liquid 18 is through inlet line
Entering the entrance point of core holding unit 4, the port of export of core holding unit 4 connects, and the circulating pump 17 of setting is connected to through pipeline
The back pressure device of core holding unit.
Having two measuring point hole circles in this reality examination example on rubber tube 16, measuring point exit connects pressure tester pressure sensing
Device, pressure transducer is connected with computer by data wire, and injection pump 1 connects device for storing liquid 17, device for storing liquid 17 by pipeline
Being connected with core holding unit 4, core holding unit 4 is connected with back-pressure valve 12 by outlet line, outlet line and gasometer 13 and
Three phase separator 14 is connected.
The system introduction of this example
Computer processing system, the total hinge processed as data, collect and monitor system from ring pressure tracking system, pressure reduction
System, ring pressure tracking system equal pressure sensing data, carries out the process of data in conjunction with singlechip technology.
Inject displacement system, as hydrodynamic source, provide sufficient displacement power to displacement test；For depositing the displacement of reservoir oil
System, in displacement process, experimenter can unrestricted choice displacing fluid as required.
Ring pressure tracking system, is used for following the tracks of the peripheral pressure of rock core surrounding rubber package set, prevents from injecting displacing fluid from rock core
With short circuit is flow through between rubber sleeve, it is impossible to reflect fluid permeability really.
Pressure reduction monitoring system, this utility model hydrocarbon gas drives the pressure reduction of core model import and export to be had the analysis of experimental data very much
Directive significance, for improving certainty of measurement, will prepare the differential pressure pickup of two set difference ranges, and by computer or single-chip microcomputer skill
Art realizes the automatic switchover of differential pressure pickup.
Injection pump, confined pressure pump, stainless steel cylinder, couveuse, insulation material and pressure transducer in this utility model are
Existing product.
Claims (6)
1. the long cores hydrocarbon gas drives experimental provision and includes an injection pump, device for storing liquid, has core holding unit, couveuse, pressure reduction
The long cores model mechanism of balance system composition, has pipeline, circulating pump, pressure reduction analyze the confined pressure mechanism of induction apparatus composition, returns
Pressure valve and driving pump form back pressure mechanism, and auxiliary equipment is made up of gasometer, three phase separator and pipeline, it is characterized in that, rock core
Having the rubber sleeve carrying out sealing in clamper, two pressure-measuring-points are distributed on rubber sleeve, rubber sleeve outer wrap has steel cylinder, pressure
Force sensor data, pressure reduction are analyzed induction apparatus and pressure balance system, are utilized output end signal line to transfer data to computer,
Device for storing liquid enters the entrance point of core holding unit through inlet line, and the circulating pump that the port of export of core holding unit connects is through pipe
Line is connected to the back pressure device of core holding unit.
The long cores hydrocarbon gas the most according to claim 1 drives experimental provision, it is characterized in that, being made up of four parts is to inject respectively
Displacement system, pressure reduction analyze system, ring pressure tracking system, gas-liquid metering system.
The long cores hydrocarbon gas the most according to claim 1 drives experimental provision, it is characterized in that, the stainless steel that rubber sleeve is wrapped
For austenite-ferrite two phase stainless steel.
The long cores hydrocarbon gas the most according to claim 1 drives experimental provision, it is characterized in that, airtight O uses double-deck four
Fluorine cladding O.
The long cores hydrocarbon gas the most according to claim 1 drives experimental provision, it is characterized in that, the elastomeric material that rubber sleeve is used
It is four fluorubber.
The long cores hydrocarbon gas the most according to claim 1 drives experimental provision, it is characterized in that, described pressure balance system, has
Two sleeve pressure sensor, can accurately measure pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571749.6U CN205826624U (en) | 2016-06-13 | 2016-06-13 | A kind of long cores hydrocarbon gas drives experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571749.6U CN205826624U (en) | 2016-06-13 | 2016-06-13 | A kind of long cores hydrocarbon gas drives experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826624U true CN205826624U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620571749.6U Expired - Fee Related CN205826624U (en) | 2016-06-13 | 2016-06-13 | A kind of long cores hydrocarbon gas drives experimental provision |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764510A (en) * | 2017-10-13 | 2018-03-06 | 中国科学院武汉岩土力学研究所 | It is a kind of to be used for the analogue means and experimental method that oil gas bittern migration rule is studied in the bank of salt cave |
| CN109709266A (en) * | 2018-12-03 | 2019-05-03 | 中国石油集团川庆钻探工程有限公司 | A kind of straight well stratified reservoir flowing simulated experiment device and method |
| CN111810139A (en) * | 2020-07-17 | 2020-10-23 | 中国石油化工股份有限公司 | Carbon dioxide foam channeling sealing experimental device and method |
| CN113153241A (en) * | 2021-04-19 | 2021-07-23 | 中国石油天然气股份有限公司 | Injection hydrocarbon gas oil displacement experimental device and injection hydrocarbon gas oil displacement experimental method |
-
2016
- 2016-06-13 CN CN201620571749.6U patent/CN205826624U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764510A (en) * | 2017-10-13 | 2018-03-06 | 中国科学院武汉岩土力学研究所 | It is a kind of to be used for the analogue means and experimental method that oil gas bittern migration rule is studied in the bank of salt cave |
| CN107764510B (en) * | 2017-10-13 | 2019-11-15 | 中国科学院武汉岩土力学研究所 | A kind of simulator and experimental method for the research of oil-gas in the storage cavern of salt cave-brine migration rule |
| CN109709266A (en) * | 2018-12-03 | 2019-05-03 | 中国石油集团川庆钻探工程有限公司 | A kind of straight well stratified reservoir flowing simulated experiment device and method |
| CN111810139A (en) * | 2020-07-17 | 2020-10-23 | 中国石油化工股份有限公司 | Carbon dioxide foam channeling sealing experimental device and method |
| CN113153241A (en) * | 2021-04-19 | 2021-07-23 | 中国石油天然气股份有限公司 | Injection hydrocarbon gas oil displacement experimental device and injection hydrocarbon gas oil displacement experimental method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161221 Termination date: 20170613 |