CN202421016U - Experimental device for simulating seepage process of polymer solution in stratum - Google Patents
Experimental device for simulating seepage process of polymer solution in stratum Download PDFInfo
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- CN202421016U CN202421016U CN2012200218614U CN201220021861U CN202421016U CN 202421016 U CN202421016 U CN 202421016U CN 2012200218614 U CN2012200218614 U CN 2012200218614U CN 201220021861 U CN201220021861 U CN 201220021861U CN 202421016 U CN202421016 U CN 202421016U
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Abstract
The utility model relates to an experimental device for simulating a seepage process of a polymer solution in a stratum. The experimental device for simulating the seepage process of the polymer solution in the stratum comprises a polymer injection loop and a polymer extracting loop, wherein the polymer injection loop is composed of a first plunger type intermediate container, an injection line between the first plunger type intermediate container and a first intermediate container, a sand-filling pipe model, a second intermediate container, an injection line between the second intermediate container and a second plunger type intermediate container, and the second plunger type intermediate container; the polymer extracting loop is composed of the second plunger type intermediate container, an extracting line between the second plunger type intermediate container and the first intermediate container, the sand-filling pipe model, the second intermediate container, an extracting line between the second intermediate container and the first plunger type intermediate container, and the first plunger type intermediate container; a pump is respectively connected with the lower cavity of the first plunger type intermediate container and the lower cavity of the second plunger type intermediate container through a four-way valve; and two pressure gages are respectively mounted in front of and behind the sand-filling pipe model. The experimental device provided by the utility model is used for researching the change rule of rheological property of the polymer solution following different seepage conditions in the stratum.
Description
Technical field
The utility model relates to be used for modeling effort polymer solution under the enclosed oxygen isolation condition on the stratum flow event during seepage flow to diverse location; Rheological changes the research polymkeric substance and the experimental provision of rheological variation research under the seepage flow condition of Different Strata position apart from increasing along with seepage flow in the stratum filtration process, and what be specifically related to is the experimental provision that is used for simulating polymer solution flow event on the stratum.
Background technology
The dense system technology of reservoir sweep of polymer solution is the gordian technique that present Daqing oil field improves recovery ratio; Near polymer solution different seepage flow position (shaft bottom, between well between main stream line direction and well low speed vadose region) in Different Strata (consider parameter comprise: permeability, factor of porosity and mineral composition), stratum descends the variation of rheological property generation that polymeric system displacement of reservoir oil performance is had very big influence with different seepage flow distances (different well patterns and well spacing); Research polymer solution rheological performance variation under these conditions is significant to the selection that the chemical displacement of reservoir oil that contains polymkeric substance improves recovery efficiency technique, finally understands the critical support parameter that impact polymer oil displacement system and ground adaptability are selected.Both at home and abroad mainly concentrate on displacement slug under the indoor conditions preferably and aspect the research of solution self rheological measurement in rheological property of polymer solution research; Differ greatly with polymer solution actual flow event in oil reservoir; Needing research badly can be under condition such as reservoir pressure, temperature and mineral composition, the experimental provision that the rheological of simulating polymer solution under different seepage flow position and distance condition changes.
Summary of the invention
The purpose of the utility model provides the experimental provision that is used for simulating polymer solution flow event on the stratum, and it is used for solution and lacks simulation at present under formation condition, the problem of the experimental provision that the research rheological property of polymer solution changes.
The utility model solves the technical scheme that its technical matters adopted: this experimental provision that is used for simulating polymer solution flow event on the stratum comprises plunger type intermediate receptacle, intermediate receptacle, fill out sand tube model, four-way valve, tensimeter, pump, constitutes the polymkeric substance infusion circuit by the injection line, the second plunger type intermediate receptacle that inject between the first plunger type intermediate receptacle, the first plunger type intermediate receptacle and first intermediate receptacle between line, fill out sand tube model, second intermediate receptacle, second intermediate receptacle and the second plunger type intermediate receptacle; Constitute polymer produced loop by the extraction line between extraction line, fill out sand tube model, second intermediate receptacle, second intermediate receptacle and the first plunger type intermediate receptacle, the first plunger type intermediate receptacle between the second plunger type intermediate receptacle, the second plunger type intermediate receptacle and first intermediate receptacle; Pump is connected with the lower chamber and the second plunger type intermediate receptacle lower chamber of the first plunger type intermediate receptacle respectively through first four-way valve; A tensimeter respectively is installed before and after the fill out sand tube model.
The first plunger type intermediate receptacle in the such scheme and the second plunger type intermediate receptacle equal and opposite in direction; First intermediate receptacle and the second intermediate receptacle equal and opposite in direction.
The top of the first plunger type intermediate receptacle is equipped with second four-way valve in the such scheme; The first intermediate receptacle bottom is equipped with the 3rd four-way valve; The top of second intermediate receptacle is installed the bottom of the 4th four-way valve, second intermediate receptacle the 5th four-way valve is installed; The top of the second plunger type intermediate receptacle is equipped with the 6th four-way valve; The lower chamber of the lower chamber of the first plunger type intermediate receptacle and the second plunger type intermediate receptacle is respectively installed a bleed valve, and the bottom of second intermediate receptacle also is equipped with bleed valve.
The utlity model has following beneficial effect:
The utility model simulating polymer solution flow event under diverse location and the distance condition in the stratum is used for studying along with the rheological Changing Pattern of polymer solution under the different seepage flow conditions in stratum.
Description of drawings
Fig. 1 is the structural representation of the utility model.
1 pump, 2 first plunger type intermediate receptacles, 2 ' the second plunger type intermediate receptacles, 3 first intermediate receptacles, 3 ' the second intermediate receptacles, 4 fill out sand tube models 5 inject line 6 extraction lines 7 first four-way valves 8 second four-way valves 9 the 3rd four-way valve 10 the 4th four-way valve 11 the 5th four-way valve 12 bleed valves 13 tensimeters 14 the 6th four-way valve.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation:
As shown in Figure 1; This experimental provision that is used for simulating polymer solution flow event on the stratum comprises plunger type intermediate receptacle, intermediate receptacle, fill out sand tube model 4, four-way valve, tensimeter, an ISOC pump 1, by inject between the first plunger type intermediate receptacle 2, the first plunger type intermediate receptacle 2 and first intermediate receptacle 3 line 5, fill out sand tube model 4, second intermediate receptacle 3 ', second intermediate receptacle 3 ' and the second plunger type intermediate receptacle 2 ' between injection line 5, the second plunger type intermediate receptacle 2 ' constitute polymkeric substance infusion circuit; By the second plunger type intermediate receptacle 2 ', the second plunger type intermediate receptacle 2 ' and first intermediate receptacle 3 between extraction line 6, fill out sand tube model 4, second intermediate receptacle 3 ', second intermediate receptacle 3 ' and the first plunger type intermediate receptacle 2 between extraction line 6, the first plunger type intermediate receptacle 2 constitute polymer produced loop; Pump 1 is connected with the lower chamber and the second plunger type intermediate receptacle, the 2 ' lower chamber of the first plunger type intermediate receptacle 2 respectively through first four-way valve 7; A tensimeter 13 is respectively installed in fill out sand tube model 4 front and back.The first plunger type intermediate receptacle 2 and the second plunger type intermediate receptacle, 2 ' equal and opposite in direction; First intermediate receptacle 3 and second intermediate receptacle, 3 ' equal and opposite in direction, and both are common intermediate receptacle.
The top of the utility model first plunger type intermediate receptacle 2 is equipped with second four-way valve 8; First intermediate receptacle, 3 bottoms are equipped with the 3rd four-way valve 9; Second intermediate receptacle 3 ' top install the 4th four-way valve 10, second intermediate receptacle 3 ' the bottom the 5th four-way valve 11 is installed; The second plunger type intermediate receptacle 2 ' top the 6th four-way valve 14 is installed; The lower chamber of the first plunger type intermediate receptacle 2 and the second plunger type intermediate receptacle 2 ' lower chamber respectively install a bleed valve 12, the second intermediate receptacles 3 ' the bottom bleed valve also is installed.
During the utility model practical operation, in fill out sand tube model 4, load the prescription silica sand and the mineral mixture on research stratum earlier, constant temperature oven is put in the model preparation, and 45 degree conditions are for use; According to experimental study seepage flow position calculation injection rate; The configuration polymer solution;
Circulation experiment process performing step is following:
Step 1: at first clean and dry each plunger type intermediate receptacle chamber, each intermediate receptacle chamber in the experimentation; Annotate nitrogen and replace the air in above-mentioned each intermediate receptacle, then polymer solution is loaded into first intermediate receptacle, 3 chambers and the first plunger type intermediate receptacle, 2 upper chamber; According to simulated formation position calculation injection rate;
Step 2: open ISCO pump 1, begin experiment; Open first four-way valve 7; Make that distilled water gets into the first plunger type intermediate receptacle, 2 bottom chamber in the ISCO pump 1, under the injection pressure effect in the first plunger type intermediate receptacle 2 plunger from container bottom displacement top polymer solution, the first plunger type intermediate receptacle, 2 bottom drain valve are closed at this moment; Make polymer solution pass through second four-way valve 8 on the first plunger type intermediate receptacle, 2 tops; Between the first plunger type intermediate receptacle and first intermediate receptacle, inject line 5, the 3rd four-way valve 9 through first intermediate receptacle, 3 bottoms gets in first intermediate receptacle 3 again, polymkeric substance infusion circuit operation this moment; Polymer solution injects the fill out sand tube model, and polymer produced loop is closed.
Step 3: behind fill out sand tube model 4 seepage flow, polymer solution through the 5th four-way valve 11 outlets of second intermediate receptacle, 3 ' bottom flow into second intermediate receptacle 3 ' in; This moment, the bleed valve of second intermediate receptacle, 3 ' bottom cut out, (this bleed valve is opened when needing collected specimens to measure); Polymer solution flows out from the 4th four-way valve 10 at second intermediate receptacle, 3 ' top; Through second intermediate receptacle 3 ' and the second plunger type intermediate receptacle between injection line 5; Flow into the second plunger type intermediate receptacle, 2 ' upper chamber through the 6th four-way valve 14; Under the polymer solution effect, distilled water is discharged through bleed valve 12 in the second plunger type intermediate receptacle, 2 ' bottom chamber; And polymer produced loop is still closed.
Step 4: after polymkeric substance injects end in the injection side first plunger type intermediate receptacle 2 top chamber that ISCO pump 1 connects; Close first four-way valve, 7 valves on the pipeline between the lower chamber of the pump 1 and the first plunger type intermediate receptacle 2, open first four-way valve, 7 valves on the pipeline between pump 1 and the second plunger type intermediate receptacle, the 2 ' lower chamber simultaneously; ISCO pump 1 injects distilled water and flows into the second plunger type intermediate receptacle, 2 ' bottom chamber; The outlet polymer solution that the second plunger type intermediate receptacle, 2 ' top chamber the is collected injection that begins to circulate; Polymer produced loop operation this moment; The polymkeric substance infusion circuit is closed; Polymer solution extraction line 6 between the second plunger type intermediate receptacle and first intermediate receptacle flows into first intermediate receptacle 3, and then injection fill out sand tube model 4 circulates; Inject fill out sand tube model 4 outlet polymer solutions through the 5th four-way valve 11 outlets of second intermediate receptacle, 3 ' bottom flow into second intermediate receptacle 3 '; The 4th four-way valve 10 from second intermediate receptacle, 3 ' top flows out again; Extraction line 6 between second intermediate receptacle and the first plunger type intermediate receptacle; Flow into the first plunger type intermediate receptacle, 2 top chamber, begin to collect the outlet polymer solution, for circulation next time is prepared.
Step 5: after polymkeric substance injects and finishes in the second plunger type intermediate receptacle, 2 ' top chamber, open the polymkeric substance infusion circuit, close polymer produced loop simultaneously, beginning circulation is once more injected.
Process above-mentioned steps 2,3,4 and 5 has realized the circulation injection of polymer solution, confirms cycle index according to experimental simulation seepage flow distance and fill out sand tube model length.
Claims (3)
1. experimental provision that is used for simulating polymer solution flow event on the stratum; It is characterized in that: this experimental provision that is used for simulating polymer solution flow event on the stratum comprises plunger type intermediate receptacle, intermediate receptacle, fill out sand tube model (4), four-way valve, tensimeter, pump (1), constitutes the polymkeric substance infusion circuit by the injection line (5), the second plunger type intermediate receptacle (2 ') that inject between the first plunger type intermediate receptacle (2), the first plunger type intermediate receptacle and first intermediate receptacle between line (5), fill out sand tube model (4), second intermediate receptacle (3 '), second intermediate receptacle and the second plunger type intermediate receptacle; Constitute polymer produced loop by the extraction line (6) between extraction line (6), fill out sand tube model (4), second intermediate receptacle (3 '), second intermediate receptacle and the first plunger type intermediate receptacle, the first plunger type intermediate receptacle (2) between the second plunger type intermediate receptacle (2 '), the second plunger type intermediate receptacle and first intermediate receptacle; Pump (1) is connected with the lower chamber and second plunger type intermediate receptacle (2 ') lower chamber of the first plunger type intermediate receptacle (2) respectively through first four-way valve (7); A tensimeter (13) respectively is installed before and after the fill out sand tube model (4).
2. the experimental provision that is used for simulating polymer solution flow event on the stratum according to claim 1 is characterized in that: the described first plunger type intermediate receptacle (2) and second plunger type intermediate receptacle (2 ') equal and opposite in direction; First intermediate receptacle (3) and second intermediate receptacle (3 ') equal and opposite in direction.
3. the experimental provision that is used for simulating polymer solution flow event on the stratum according to claim 1 and 2 is characterized in that: the top of the described first plunger type intermediate receptacle (2) is equipped with second four-way valve (8); First intermediate receptacle (3) bottom is equipped with the 3rd four-way valve (9); The top of second intermediate receptacle (3 ') is installed the bottom of the 4th four-way valve (10), second intermediate receptacle (3 ') the 5th four-way valve (11) is installed; The top of the second plunger type intermediate receptacle (2 ') is equipped with the 6th four-way valve (14); The lower chamber of the lower chamber of the first plunger type intermediate receptacle (2) and the second plunger type intermediate receptacle (2 ') is respectively installed a bleed valve (12), and the bottom of second intermediate receptacle (3 ') also is equipped with bleed valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200218614U CN202421016U (en) | 2012-01-18 | 2012-01-18 | Experimental device for simulating seepage process of polymer solution in stratum |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200218614U CN202421016U (en) | 2012-01-18 | 2012-01-18 | Experimental device for simulating seepage process of polymer solution in stratum |
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| CN202421016U true CN202421016U (en) | 2012-09-05 |
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| CN2012200218614U Expired - Fee Related CN202421016U (en) | 2012-01-18 | 2012-01-18 | Experimental device for simulating seepage process of polymer solution in stratum |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564900A (en) * | 2012-01-18 | 2012-07-11 | 东北石油大学 | Simulation test method for seepage process of polymer solution at different positions of stratum |
| CN103048113A (en) * | 2012-12-18 | 2013-04-17 | 河海大学 | Experimental device for monitoring motion regularity of pipeline-fissure water flow |
| CN105571988A (en) * | 2015-12-14 | 2016-05-11 | 中国石油天然气股份有限公司 | Polymer thermal stability detecting equipment and detecting method |
| CN107725016A (en) * | 2016-08-11 | 2018-02-23 | 中国石油天然气股份有限公司 | Unitary drives experimental provision |
| CN107725015A (en) * | 2016-08-11 | 2018-02-23 | 中国石油天然气股份有限公司 | Binary drives experimental provision |
-
2012
- 2012-01-18 CN CN2012200218614U patent/CN202421016U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564900A (en) * | 2012-01-18 | 2012-07-11 | 东北石油大学 | Simulation test method for seepage process of polymer solution at different positions of stratum |
| CN102564900B (en) * | 2012-01-18 | 2013-11-20 | 东北石油大学 | Simulation test method for seepage process of polymer solution at different positions of stratum |
| CN103048113A (en) * | 2012-12-18 | 2013-04-17 | 河海大学 | Experimental device for monitoring motion regularity of pipeline-fissure water flow |
| CN103048113B (en) * | 2012-12-18 | 2015-02-04 | 河海大学 | Experimental device for monitoring motion regularity of pipeline-fissure water flow |
| CN105571988A (en) * | 2015-12-14 | 2016-05-11 | 中国石油天然气股份有限公司 | Polymer thermal stability detecting equipment and detecting method |
| CN107725016A (en) * | 2016-08-11 | 2018-02-23 | 中国石油天然气股份有限公司 | Unitary drives experimental provision |
| CN107725015A (en) * | 2016-08-11 | 2018-02-23 | 中国石油天然气股份有限公司 | Binary drives experimental provision |
| CN107725015B (en) * | 2016-08-11 | 2020-04-10 | 中国石油天然气股份有限公司 | Binary drives experimental apparatus |
| CN107725016B (en) * | 2016-08-11 | 2020-10-09 | 中国石油天然气股份有限公司 | One-unit driving experimental device |
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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: 20120905 Termination date: 20130118 |