CN205172537U - Indoor simulation rock core displacement of reservoir oil device - Google Patents
Indoor simulation rock core displacement of reservoir oil device Download PDFInfo
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- CN205172537U CN205172537U CN201520639065.0U CN201520639065U CN205172537U CN 205172537 U CN205172537 U CN 205172537U CN 201520639065 U CN201520639065 U CN 201520639065U CN 205172537 U CN205172537 U CN 205172537U
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- liquid storage
- storage bottle
- oil
- holding unit
- rock core
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 40
- 239000011435 rock Substances 0.000 title claims abstract description 35
- 238000004088 simulation Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 15
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 9
- 240000005373 Panax quinquefolius Species 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 60
- 239000010779 crude oil Substances 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000008398 formation water Substances 0.000 description 12
- 238000011084 recovery Methods 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 9
- 108010028921 Lipopeptides Proteins 0.000 description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 4
- 239000003876 biosurfactant Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011206 ternary composite Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a device of the indoor simulation rock core displacement of reservoir oil. The device is including reagent injection allocation system, simulation oil reservoir system and control detection system. Reagent injection allocation system mainly includes advection pump, liquid storage pot, pipe valve spare, filter equipment. The advection pump links to each other with a plurality of liquid storage pots, the drain pipe and the rock core part intercommunication of liquid storage pot. Be provided with filter equipment after the crude oil liquid storage pot, solid particle in can elimination crude oil. Rock core drain pipe end is equipped with the collection container. Simulation oil reservoir system mainly includes a rock core holder and rock core. The control detection system includes host computer, hand pump, flow controller, thermostated container and vacuum pump. The host computer links to each other with thermostated container, flow controller and vacuum pump, realizes automatic control. The utility model discloses the apparatus and method for can the simulated formation temperature and pressure carries out the water drive, the chemical displacement of reservoir oil is experimental, and easy and simple to handle, easy dismounting can satisfy the laboratory requirement.
Description
Technical field
The utility model relates to a kind of lab simulation core flooding test device in oil recovery technique.
Background technology
Along with the progress of industrial expansion and society, the demand of the energy particularly crude oil is continued to increase, and the up-to-date reserves verified of crude oil are very limited.The land most oil fields of current China have entered the middle and later periods of exploitation, and crude oil volume increase is limited, and Water in oil amount is increasing, needs the oil recovery technique that Devoting Major Efforts To Developing is new.Wherein " tertiary oil recovery technology " receives much concern as the means of main raising recovery ratio, and this technology comprises that alkali drives, polymer flooding, surfactant flooding, binary combination flooding, ternary composite driving and microorganism drive.And before these technology are applied to reality, often need to carry out indoor simulated experiment.In order to ensure the reliability of testing, in experimentation, requiring simulated formation environment, as the factor such as temperature, pressure, for different reservoir media condition, considering that appropriateness expands the factor range of simulation.And although existing core oil-displacement test device can simulation stratum condition, its structure is often too complicated, operates more loaded down with trivial details, is further improved.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of devices and methods therefor of lab simulation core flooding test, and this device can carry out the displacement of reservoir oil by simulation stratum condition.Meanwhile, this apparatus structure is reasonable, and service behaviour is desirable, easy and simple to handle, is convenient to dismounting on the spot.Meanwhile, in order to solve the model core plugging problem that may occur in experimentation, this device is provided with filter, its solid particle that can effectively may carry in filtering crude oil, further increases the reliability of experiment.
The technical solution of the utility model is as follows: a kind of device of lab simulation core flooding test, comprises for distributing the reagent injection distribution system injecting reagent, the simulating oil deposit system for simulating oil deposit environment and the control detection system for whole system;
Described reagent injection distribution system comprises constant-flux pump, is filled with water with liquid storage bottle, contains oil displacement agent liquid storage bottle, contains oil liquid storage bottle, pipe valve and filter;
Described simulating oil deposit system comprises core holding unit and rock core;
Described control detection system comprises ring pressure table, water tank, hand pump, insulating box, vacuum pump, flow control valve, host computer and fluid receiving vessel;
Wherein, described constant-flux pump is filled with water with liquid storage bottle with described by pipeline and valve, is contained oil displacement agent liquid storage bottle and contain oil liquid storage bottle upper end and be communicated with, described in be filled with water and be equipped with liquid storage bottle and the lower end of containing oil displacement agent liquid storage bottle
Drain pipe, described in be filled with water and be connected by two interfaces of threeway with the drain pipe containing oil displacement agent liquid storage bottle with liquid storage bottle, described in be filled with water and be equipped with discharge opeing control valve with on liquid storage bottle and the drain pipe of Sheng oil displacement agent liquid storage bottle, described pressure meter arranges in described threeway, the lower end of described Sheng oil liquid storage bottle is provided with liquid outlet, and described Sheng oil is connected by the inlet of discharge opeing control valve with described filter with the liquid outlet of liquid storage bottle, the another one interface of described threeway is communicated with the inlet of leak detector valve with described core holding unit by pipeline, the liquid outlet of described filter is communicated with the inlet of described core holding unit by described leak detector valve, the liquid outlet of described core holding unit is connected with fluid receiving vessel by pipeline, described vacuum pump is arranged on the pipeline at liquid outlet place of described core holding unit, described water tank is connected with one end of described hand pump, described hand pump is connected with core holding unit by pipeline, described ring pressure table is arranged on the pipeline that described hand pump is connected with core holding unit, described flow control valve is arranged on the pipeline that described leak detector valve is connected with core holding unit, described ring pressure table, filter, flow control valve, core holding unit, be filled with water with liquid storage bottle, contain oil displacement agent liquid storage bottle, contain oil liquid storage bottle, discharge opeing control valve, pressure meter, leak detector valve, vacuum pump, fluid receiving vessel is all arranged in described insulating box, described host computer and described insulating box, constant-flux pump, discharge opeing control valve, flow control valve and vacuum pump control connection.
Described filter comprises filtration rock core and filter cloth, and filter cloth aperture is 10 ~ 30 μm.
The utility model is rational in infrastructure, easy and simple to handle, can carry out water drive, chemical flooding displacement test under the condition of simulated formation temperature, pressure.This device can prevent the generation of core plugging when using actual formation crude oil to carry out imitation oil displacement experiment test simultaneously, improves the reliability of experiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of lab simulation core flooding test device of the present utility model.
In figure:
1 water tank, 2 hand pumps, 3 constant-flux pumps, 4 ring pressure tables, 5 are filled with water with liquid storage bottle, 6 Sheng oil displacement agent liquid storage bottles, 7 Sheng oil liquid storage bottles, 8 pressure meters, 9 filters, 10 core holding units, 11 fluid receiving vessels, 12 vacuum pumps, 13 discharge opeing control valves, 14 insulating boxs, 15 host computers, 16 leak detector valves, 17 flow control valves.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
Be illustrated in figure 1 the structural representation of a kind of lab simulation core flooding test device of the present utility model, this device comprises for distributing the reagent injection distribution system injecting reagent, the simulating oil deposit system for simulating oil deposit environment and the control detection system for whole system;
Reagent injection distribution system comprises constant-flux pump 3, is filled with water with liquid storage bottle 5, contains oil displacement agent liquid storage bottle 6, contains oil liquid storage bottle 7, leak detector valve 16, discharge opeing control valve 13 and filter 9;
Simulating oil deposit system comprises core holding unit 10 and rock core;
Control detection system and comprise water tank 1, hand pump 2, ring pressure table 4, insulating box 14, vacuum pump 12, flow control valve 17, host computer 15 and fluid receiving vessel 11;
Wherein, described constant-flux pump 3 is filled with water with liquid storage bottle 5 with described by pipeline and leak detector valve 16, is contained oil displacement agent liquid storage bottle 6 and be communicated with the upper end of containing oil liquid storage bottle 7, described being filled with water is equipped with drain pipe with liquid storage bottle 5 and the lower end of containing oil displacement agent liquid storage bottle 6, described being filled with water is connected with two interfaces of threeway with the drain pipe containing oil displacement agent liquid storage bottle 6 respectively with liquid storage bottle 5, described be filled with water with liquid storage bottle and contain oil displacement agent liquid storage bottle drain pipe on be equipped with discharge opeing control valve 13, described pressure meter 8 is arranged in described threeway, the lower end of described Sheng oil liquid storage bottle 7 is provided with liquid outlet, and described Sheng oil is connected by the inlet of discharge opeing control valve 13 with described filter 9 with the liquid outlet of liquid storage bottle 7, the another one interface of described threeway is communicated with the inlet of leak detector valve 16 with described core holding unit 10 by pipeline, the liquid outlet of described filter 9 is communicated with the inlet of described core holding unit 10 by described leak detector valve 16, the liquid outlet of described core holding unit 10 is connected with fluid receiving vessel 11 by pipeline, described vacuum pump 12 is arranged on the pipeline at the liquid outlet place of described core holding unit 10, described water tank 1 is connected with one end of described hand pump 2, described hand pump 2 is connected with core holding unit 10 by pipeline, described ring pressure table 4 is arranged on the pipeline that described hand pump 2 is connected with core holding unit 10, described flow control valve 17 is arranged on the pipeline that described leak detector valve 16 is connected with core holding unit 10, described ring pressure table 4, filter 9, flow control valve 17, core holding unit 10, be filled with water with liquid storage bottle 5, contain oil displacement agent liquid storage bottle 6, contain oil liquid storage bottle 7, discharge opeing control valve 13, pressure meter 8, leak detector valve 16, vacuum pump 12, fluid receiving vessel 11 is all arranged in described insulating box 14, described host computer 15 and described insulating box 14, constant-flux pump 3, discharge opeing control valve 13, flow control valve 17 and vacuum pump 13 control connection, described filter 9 comprises filtration rock core and filter cloth, and filter cloth aperture is 10 ~ 30 μm.
Use the operating principle of the simulation of above-mentioned lab simulation core flooding test device:
Step 1: rock core is put into core holding unit, starts insulating box by host computer, is heated to 52 ~ 65 DEG C, constant temperature 12 ~ 24h, with vacuum pump by the rock core vacuumizing 3h in core holding unit;
Step 2: start constant-flux pump and drive in rock core by being filled with water with the formation water in liquid storage bottle, make the saturated formation water of rock core, calculate voids volume, continue constant temperature 12 ~ 48h;
Step 3: start the formation water that constant-flux pump will be contained in the mother oil displacement rock core of oil liquid storage bottle, press from both sides to rock core
Till holding the outlet not water outlet of device, measure initial oil saturation;
Step 4: utilize hand pump that rock core is forced into strata pressure 9.5 ~ 10.5MPa, again start constant-flux pump will be filled with water with the formation water in liquid storage bottle with the crude oil in 2mL/min flow velocity displacement rock core, be 98% to efflux moisture content, calculate waterflood recovery efficiency factor;
Step 5: start constant-flux pump and the oil displacement agent containing oil displacement agent liquid storage bottle is injected rock core with the speed of 1 ~ 4mL/min, injected slurry volume is 0.2 ~ 1PV, inject rock core with the formation water in liquid storage bottle with 2mL/min speed by being filled with water and carry out sequent water flooding, until stop experiment when moisture content reaches 98% in rock core efflux, calculating overall recovery factor and oil displacement agent drive raising recovery ratio, described rock core length is 7.75cm, diameter 2.42cm, sectional area 4.60cm
2, it is 830 × 10 that water surveys permeability
-3μm
2, voids volume 14.5ml, initial oil saturation is 86.75%.Described oil displacement agent is sodium dodecyl sulfate solution or cyclic lipopeptide biosurfactant solution.
During practical operation, first insulating box 14 is set to 52 ~ 65 DEG C, constant temperature 12 ~ 24h, with vacuum pump 12 by the rock core vacuumizing 3h in core holding unit 10, with the formation water saturated core in fluid reservoir 5, measures voids volume (PV).By the rock core constant temperature 12 ~ 24h of saturation formation water.Crude oil in fluid reservoir 7 is filtered rear-guard for the water in rock core through filter 9, to rock core exports not water outlet, measures initial oil saturation.Utilize hand pump that rock core is forced into strata pressure 9.5 ~ 10.5MPa, with the formation water in fluid reservoir 5 with the oil in the speed displacement rock core of 2mL/min, exporting liquid aqueous rate to rock core is 98%, calculates waterflood recovery efficiency factor; Oil displacement agent in fluid reservoir 6 is injected rock core with the speed of 1 ~ 4mL/min, and injected slurry volume is 0.2 ~ 1PV.Formation water in fluid reservoir 5 is injected rock core with 2mL/min speed and carries out sequent water flooding, until stop experiment when moisture content reaches 98% in rock core efflux, calculating overall recovery factor and oil displacement agent drive raising recovery ratio.
Embodiment 2
Surfactant laboratory core oil displacement test
The formation water of experiment is the formation water of territory, West 51, Dagang Oilfield port, Tianjin oil well, and its salinity is 5267.2mg/L.Formation water ions content is as shown in table 1 below.
table 151 oil-well strata water leading ion percentage forms
| Leading ion | Cl - | NO 3 - | SO 4 2- | Na + | K + | Mg 2+ | Ca 2+ |
| Percentage % | 43.88 | 0.11 | 1.13 | 49.52 | 1.01 | 1.85 | 2.50 |
The oil used in experiment is the crude oil of territory, West 51, Dagang Oilfield port, Tianjin oil well, and viscosity (45 DEG C) is 59.3mPas.
Testing the oil displacement agent used is sodium dodecyl sulfate solution, cyclic lipopeptide biosurfactant solution, and concentration is 0.5 ~ 2g/l.
The rock core length used in experiment is 7.75cm, diameter 2.42cm, sectional area 4.60cm
2, it is 830 × 10 that water surveys permeability
-3μm
2, voids volume 14.5ml, initial oil saturation is 86.75%.
The experimental temperature optimized is set as 65 DEG C, and the concentration of sodium dodecyl sulfate solution and cyclic lipopeptide biosurfactant solution is 2g/L, and oil displacement agent injected slurry volume is 1PV, and oil displacement agent injection rate is 2ml/min.Testing the waterflood recovery efficiency factor obtained is 41.32%.After use oil displacement agent drives, for sodium dodecyl sulfate solution, cyclic lipopeptide biosurfactant solution, total recovery ratio is respectively 49.83%, 52.54%, and comparatively a water drive improves 8.51%, 11.22% respectively.
Claims (2)
1. a lab simulation core flooding test device, is characterized in that, this device comprises for distributing the reagent injection distribution system injecting reagent, the simulating oil deposit system for simulating oil deposit environment and the control detection system for whole system;
Described reagent injection distribution system comprises constant-flux pump, is filled with water with liquid storage bottle, contains oil displacement agent liquid storage bottle, contains oil liquid storage bottle, pipe valve and filter;
Described simulating oil deposit system comprises core holding unit and rock core;
Described control detection system comprises ring pressure table, water tank, hand pump, insulating box, vacuum pump, flow control valve, host computer and fluid receiving vessel;
Wherein, described constant-flux pump is filled with water with liquid storage bottle with described by pipeline and valve, is contained oil displacement agent liquid storage bottle and contain oil liquid storage bottle upper end and be communicated with, described being filled with water is equipped with drain pipe with liquid storage bottle and the lower end of containing oil displacement agent liquid storage bottle, described being filled with water is connected by two interfaces of threeway with the drain pipe containing oil displacement agent liquid storage bottle with liquid storage bottle, described be filled with water with liquid storage bottle and contain oil displacement agent liquid storage bottle drain pipe on be equipped with discharge opeing control valve, pressure meter arranges in described threeway, the lower end of described Sheng oil liquid storage bottle is provided with liquid outlet, and described Sheng oil is connected by the inlet of discharge opeing control valve with described filter with the liquid outlet of liquid storage bottle, the another one interface of described threeway is communicated with the inlet of leak detector valve with described core holding unit by pipeline, the liquid outlet of described filter is communicated with the inlet of described core holding unit by described leak detector valve, the liquid outlet of described core holding unit is connected with fluid receiving vessel by pipeline, described vacuum pump is arranged on the pipeline at liquid outlet place of described core holding unit, described water tank is connected with one end of described hand pump, described hand pump is connected with core holding unit by pipeline, described ring pressure table is arranged on the pipeline that described hand pump is connected with core holding unit, described flow control valve is arranged on the pipeline that described leak detector valve is connected with core holding unit, described ring pressure table, filter, flow control valve, core holding unit, be filled with water with liquid storage bottle, contain oil displacement agent liquid storage bottle, contain oil liquid storage bottle, discharge opeing control valve, pressure meter, leak detector valve, vacuum pump, fluid receiving vessel is all arranged in described insulating box, described host computer and described insulating box, constant-flux pump, discharge opeing control valve, flow control valve and vacuum pump control connection.
2. device according to claim 1, is characterized in that, described filter comprises filtration rock core and filter cloth, and filter cloth aperture is 10 ~ 30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639065.0U CN205172537U (en) | 2015-08-21 | 2015-08-21 | Indoor simulation rock core displacement of reservoir oil device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639065.0U CN205172537U (en) | 2015-08-21 | 2015-08-21 | Indoor simulation rock core displacement of reservoir oil device |
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| CN205172537U true CN205172537U (en) | 2016-04-20 |
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| CN201520639065.0U Expired - Fee Related CN205172537U (en) | 2015-08-21 | 2015-08-21 | Indoor simulation rock core displacement of reservoir oil device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468162A (en) * | 2015-08-21 | 2017-03-01 | 北京科技大学 | A kind of lab simulation core flooding test device and analogy method |
| CN106771090A (en) * | 2016-12-26 | 2017-05-31 | 浙江海洋大学 | Along the assay method and measure device of journey emulsification of crude oil ability during a kind of simulation surfactant flooding |
| CN106840993A (en) * | 2016-12-16 | 2017-06-13 | 中国石油天然气股份有限公司 | Method and device for determining movable fluid space of rock core |
-
2015
- 2015-08-21 CN CN201520639065.0U patent/CN205172537U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468162A (en) * | 2015-08-21 | 2017-03-01 | 北京科技大学 | A kind of lab simulation core flooding test device and analogy method |
| CN106840993A (en) * | 2016-12-16 | 2017-06-13 | 中国石油天然气股份有限公司 | Method and device for determining movable fluid space of rock core |
| CN106771090A (en) * | 2016-12-26 | 2017-05-31 | 浙江海洋大学 | Along the assay method and measure device of journey emulsification of crude oil ability during a kind of simulation surfactant flooding |
| CN106771090B (en) * | 2016-12-26 | 2019-11-12 | 浙江海洋大学 | Along the measuring method and measurement device of journey emulsification of crude oil ability during a kind of template surface activating agent displacement of reservoir oil |
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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: 20160420 |