CN202273665U - Carbon dioxide solution gas drive rock core oil washing instrument - Google Patents
Carbon dioxide solution gas drive rock core oil washing instrument Download PDFInfo
- Publication number
- CN202273665U CN202273665U CN2011204342122U CN201120434212U CN202273665U CN 202273665 U CN202273665 U CN 202273665U CN 2011204342122 U CN2011204342122 U CN 2011204342122U CN 201120434212 U CN201120434212 U CN 201120434212U CN 202273665 U CN202273665 U CN 202273665U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- solvent
- pipeline
- rock core
- core chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a carbon dioxide solution gas drive rock core oil washing instrument which comprises a carbon dioxide bottle, a solvent tank, a booster pump, a rock core chamber, a solvent recovery machine and a vacuum pump; a vacuum extractor is added, the negative pressure of the rock core chamber can be established, which is in favor of the entry of carbon dioxide and an oil washing solvent dissolving carbon dioxide into the rock core; a pipeline flow for carbon dioxide to individually enter into the rock core is added, and carbon dioxide is allowed to be dissolved in crude oil; the step for carrying crude oil over after decompression and expansion creates advantages for the subsequent carbon dioxide solution gas drive; and oil washing efficiency can be improved further, a solvent recovery device is added, the oil washing solvent can be recycled, the oil washing efficiency of the carbon dioxide solvent gas drive can be improved, and the carbon dioxide solution gas drive rock core oil washing instrument is clean and environment-friendly.
Description
Technical field
The utility model relates to a kind of quick Device for washing oil of all kinds of rock cores based on carbon dioxide solvent gas drive principle, is a kind of carbon dioxide dissolved gas drive rock core washing oil appearance concretely.
Background technology
At present; Existing carbon dioxide solvent gas drive Device for washing oil; By dioxide bottle, intermediate receptacle, booster pump, core chamber, water-bath are formed; This device utilizes that carbon dioxide is difficult for catching fire, blast, nontoxic, be soluble in organic solvent and the characteristics of volume expansion after release, through repeatedly to the oil rock heart to be washed " clamp-on " organic solvent that dissolved carbon dioxide, unload be pressed onto atmospheric pressure by the contact of washing oil solvent, carry crude oil and accomplish the rock core washing oil.But there is following shortcoming in this device: 1) core chamber is not vacuumized, the washing oil solvent that has been unfavorable for dissolving carbon dioxide gets into the oil rock heart to be washed; 2) if rock core rerum natura (degree of porosity, permeability) is poor, viscosity of crude is big, even if adopt the water-bath heating, the washing oil solvent that has dissolved carbon dioxide also is difficult to get into the oil rock heart to be washed, and displacement efficiency is undesirable; 3) do not have solvent recovery unit, there is pollution problem in solvent when preserving, and can not reuse.
The utility model content
The purpose of the utility model is exactly the defective that exists to prior art, and the carbon dioxide solvent gas drive rock core washing oil appearance that a kind of efficient is high, environment protecting is good is provided.
Its technical scheme is: comprise CO
2Gas cylinder, solvent tank, booster pump, core chamber, solvent recovery machine and vacuum pump, CO
2Gas cylinder is provided with pressure meter, CO
2Gas cylinder is communicated with solvent tank, CO through pipeline
2Pipeline between gas cylinder and the solvent tank is provided with valve, and solvent tank is communicated with booster pump through pipeline, and booster pump is communicated with core chamber through pipeline; Pipeline between booster pump and the core chamber is provided with valve, and core chamber is provided with pressure meter, and core chamber is communicated with solvent recovery machine through pipeline; Pipeline between core chamber and the solvent recovery machine is provided with valve; Core chamber is communicated with vacuum pump through pipeline, and the pipeline between core chamber and the vacuum pump is provided with two valves, CO
2The valve lower end is communicated with by the pipeline in the centre position of two valves between pipeline and core chamber and the vacuum pump between gas cylinder and the solvent tank, and this pipeline is provided with valve.
The utility model has increased vacuum extractor compared with prior art, can set up the negative pressure of core chamber; The washing oil solvent that help carbon dioxide, has dissolved carbon dioxide gets into rock core, has increased the pipeline flow process that carbon dioxide gets into rock core separately, allows carbon dioxide to dissolve in crude oil earlier; Unload the step of taking crude oil out of after the compression swelling,, can further improve displacement efficiency for follow-up carbon dioxide solvent gas drive creates favorable conditions; Increased solvent recovery unit; Recyclable washing oil solvent can improve the displacement efficiency of carbon dioxide solvent gas drive so that reuse, and clean environment firendly.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
As shown in the figure, a kind of carbon dioxide dissolved gas drive rock core washing oil appearance comprises CO
2Gas cylinder 1, solvent tank 2, booster pump 3, core chamber 4, solvent recovery machine 5 and vacuum pump 6, CO
2Gas cylinder 1 is provided with pressure meter 13, CO
2Gas cylinder 1 is communicated with solvent tank 2, CO through pipeline 15
2Pipeline 15 between gas cylinder 1 and the solvent tank 2 is provided with valve 7; Solvent tank 2 is communicated with booster pump 3 through pipeline 15, and booster pump 3 is communicated with core chamber 4 through pipeline 15, and the pipeline 15 between booster pump 3 and the core chamber 4 is provided with valve 8; Core chamber 4 is provided with pressure meter 14; Core chamber 4 is communicated with solvent recovery machine 5 through pipeline 15, and the pipeline 15 between core chamber 4 and the solvent recovery machine 5 is provided with valve 12, and core chamber 4 is communicated with vacuum pump 6 through pipeline 15; Pipeline 15 between core chamber 4 and the vacuum pump 6 is provided with valve 9 and valve 10, CO
2Valve 7 lower ends are communicated with by the pipeline 15 in the centre position of valve 9, valve 10 between pipeline 15 and core chamber 4 and the vacuum pump 6 between gas cylinder 1 and the solvent tank 2, and this pipeline is provided with valve 11.
In the use, at first close all valves, the sealing of inspection whole system; Rock sample is put into core chamber 4, industrial naptha adding solvent tank 2 and sealing; Open valve 9 and valve 10, open 6 pairs of core chamber 3 of vacuum pump and vacuumize 30min, valve-off 9, valve 10 and vacuum pump 6; Connect CO2 gas cylinder 1, open valve 10 and valve 11, CO2 gas is got in the core chamber 4; Voltage stabilizing 10min-20min lets the abundant contact lysis of crude oil in CO2 gas and the blowhole; Valve-off 10 and valve 11 are opened valve 12, and the pressure in the core chamber reduces rapidly, and CO2 gas is taken part crude oil in the blowhole out of; Open valve 7, CO2 gas is got in the clean industrial naptha jar 2, and fully miscible, valve-off 7; Open valve 8, the industrial naptha that is dissolved with CO2 gas is injected core chamber, use booster pump 3 that core chamber's 4 boost in pressure are arrived 5MPa simultaneously, valve-off 8 and booster pump 3; Voltage stabilizing 0.5h-1h lets the abundant contact lysis of crude oil in solvent and the blowhole; Open core chamber's valve 12, indoor pressure reduces rapidly, and dirty washing oil solvent is discharged in the solvent recovery machine 5; After CO2 gas is all overflowed, be clean cycle one time; Open solvent recovery machine 5, to the dirty solvent recovery of purifying.
Claims (1)
1. a carbon dioxide dissolved gas drive rock core washing oil appearance comprises CO
2Gas cylinder, solvent tank, booster pump, core chamber, solvent recovery machine and vacuum pump is characterized in that: CO
2Gas cylinder is provided with pressure meter, CO
2Gas cylinder is communicated with solvent tank, CO through pipeline
2Pipeline between gas cylinder and the solvent tank is provided with valve, and solvent tank is communicated with booster pump through pipeline, and booster pump is communicated with core chamber through pipeline; Pipeline between booster pump and the core chamber is provided with valve, and core chamber is provided with pressure meter, and core chamber is communicated with solvent recovery machine through pipeline; Pipeline between core chamber and the solvent recovery machine is provided with valve; Core chamber is communicated with vacuum pump through pipeline, and the pipeline between core chamber and the vacuum pump is provided with two valves, CO
2The valve lower end is communicated with by the pipeline in the centre position of two valves between pipeline and core chamber and the vacuum pump between gas cylinder and the solvent tank, and this pipeline is provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204342122U CN202273665U (en) | 2011-10-29 | 2011-10-29 | Carbon dioxide solution gas drive rock core oil washing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204342122U CN202273665U (en) | 2011-10-29 | 2011-10-29 | Carbon dioxide solution gas drive rock core oil washing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273665U true CN202273665U (en) | 2012-06-13 |
Family
ID=46194029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204342122U Expired - Fee Related CN202273665U (en) | 2011-10-29 | 2011-10-29 | Carbon dioxide solution gas drive rock core oil washing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273665U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269680A (en) * | 2016-09-23 | 2017-01-04 | 中国石油化工股份有限公司 | Circulation pressure suction type washing oil method and circulation pressure suction type device for washing oil |
| CN106644659A (en) * | 2016-10-20 | 2017-05-10 | 海安县石油科研仪器有限公司 | High-temperature and high-pressure uninterrupted soaking rotation oil washing device and method |
| CN104481523B (en) * | 2014-11-11 | 2018-07-13 | 中国石油天然气股份有限公司 | Simulation experiment system and method for thick oil dissolved gas drive development |
| CN110618013A (en) * | 2018-06-20 | 2019-12-27 | 中国石油化工股份有限公司 | Rock core oil washing instrument |
| CN111272978A (en) * | 2020-02-26 | 2020-06-12 | 西南石油大学 | Evaluation of CO2Device and method for testing influence on flat acid rock reaction rate |
-
2011
- 2011-10-29 CN CN2011204342122U patent/CN202273665U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481523B (en) * | 2014-11-11 | 2018-07-13 | 中国石油天然气股份有限公司 | Simulation experiment system and method for thick oil dissolved gas drive development |
| CN106269680A (en) * | 2016-09-23 | 2017-01-04 | 中国石油化工股份有限公司 | Circulation pressure suction type washing oil method and circulation pressure suction type device for washing oil |
| CN106644659A (en) * | 2016-10-20 | 2017-05-10 | 海安县石油科研仪器有限公司 | High-temperature and high-pressure uninterrupted soaking rotation oil washing device and method |
| CN110618013A (en) * | 2018-06-20 | 2019-12-27 | 中国石油化工股份有限公司 | Rock core oil washing instrument |
| CN111272978A (en) * | 2020-02-26 | 2020-06-12 | 西南石油大学 | Evaluation of CO2Device and method for testing influence on flat acid rock reaction rate |
| CN111272978B (en) * | 2020-02-26 | 2021-04-09 | 西南石油大学 | Evaluation of CO2Device and method for testing influence on flat acid rock reaction rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20131029 |