CN102237005A - Automatic back pressure control device - Google Patents
Automatic back pressure control device Download PDFInfo
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- CN102237005A CN102237005A CN2011101188936A CN201110118893A CN102237005A CN 102237005 A CN102237005 A CN 102237005A CN 2011101188936 A CN2011101188936 A CN 2011101188936A CN 201110118893 A CN201110118893 A CN 201110118893A CN 102237005 A CN102237005 A CN 102237005A
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Abstract
The invention relates to an automatic back pressure control device for an indoor thermal recovery simulation experiment of the petroleum industry and solves the problems that back pressure control is easy to be out of work, the success rate of an experiment is low, experimental data is inaccurate and an experimental operator can be burned or scalded easily in a back pressure control method adopted in the conventional thickened oil thermal recovery simulation experiment of the petroleum industry. The device consists of a double-diaphragm piston type back pressure valve, a temperature regulation and control device and an automatic back pressure tracking system. The automatic back pressure control device has the advantages of increasing the success rate of the experiment and the accuracy of the experimental data, along with safety, reliability and convenience in operation, and is mainly applied to the high-temperature steam driving indoor physical simulation experiment of the petroleum industry.
Description
Affiliated technical field
The present invention relates to a kind of device that is used for back pressure control, particularly relate to a kind of petroleum industry heavy crude reservoir high-temperature steam and drive the back pressure automaton that the indoor physical simulation experiment is used.
Background technology
At present, relate in the physical simulation experiment of back pressure in petroleum industry, control to displacement test flow process outlet back pressure mainly realizes by check valve and constant pressure pump, and there is very big influence in the conventional back pressure control mode of employing to the success ratio of experiment and the accuracy of data in simulation heavy oil heat production oil reservoir high-temperature steam displacement test.At the steam flood experiment initial stage, fluid is mainly crude oil in the discharge pipe, because the initial stage temperature is lower, viscosity of crude is very big, is easy to generate additional drag, causes system pressure to increase, and the sweeping phase phase changes in the system, becomes high-temperature-hot-water by high-temperature steam; And in the displacement middle and later periods, because discharge pipe kind fluid is mainly high-temperature steam or high-temperature-hot-water, its viscosity is very little, the problem that in pipeline, does not have additional drag, and the instability of high temperature and high pressure steam state makes check valve control be difficult to the requirement that reaches stable, and steam can make the influence of the fluctuation of instantaneous reduction of system pressure and pressure to the experimental data accuracy intermittently from the outlet ejection, even back pressure control is malfunctioning fully, causes experiment to fall flat.Simultaneously, since the common analog temperature of experiment up to 350 ℃, system's back pressure is up to 20MPa, so also there is burn in this back pressure control mode or scalds the potential safety hazard of experiment operator.
Summary of the invention
In order to solve the problem that exists in the above-mentioned heavy crude heat extraction simulated experiment, the invention provides and a kind ofly realize that automatic tracking system pressure changes, safe and reliable back pressure automaton.
A kind of back pressure automaton of the present invention comprises check valve, and described check valve outside is provided with the thermostat of band pipeline connecting hole, and with air compressor with link to each other from the motion tracking pump.The effect of establishing thermostat in described check valve outside is at the experiment initial stage, the crude oil of systematic pipeline outlet is under the higher temperature conditions, prevents situation low because of the exit temperature, that viscosity of crude increase generation additional drag increases system pressure and take place; In the experiment middle and later periods, play helping to reduce systematic pipeline outlet output object temperature, especially make the instantaneous high-temperature-hot-water that becomes of high-temperature steam be convenient to metering.The effect of the air compressor that setting links to each other with described check valve is to fill the compression air in the air-pressure chamber to check valve, makes its air-pressure chamber reach certain force value, improves the performance of check valve.The effect from the motion tracking pump that setting links to each other with described check valve is to change according to system pressure to adjust pressure, and sweeping phase is a vapor phase in the assurance system; Automatically regulate the back pressure function by it, control check valve switch prevents to test middle and later periods system pipeline steam ejection.
Above-mentioned check valve is preferably two diaphragm piston formula check valves.It is good that this check valve has the pressure controllability, realizes the accurately advantage of control easily.
Beneficial effect of the present invention: by described thermostat, having reduced the interior material of systematic pipeline is subjected to the Temperature Influence degree and has prevented that the high-temperature steam ejection from influencing the accuracy of metering, avoid out simultaneously the influence of mouth-spray to surrounding space, by described check valve with from the motion tracking pump, realized the switch control and the outlet back pressure of systematic pipeline mouth are in time adjusted back pressure automatically along with the subtle change of system pressure, avoided producing than mistake because of the vapor collection difficulty makes the outlet metering, guaranteed system pressure in the experimentation, the accuracy of differential pressure and three important parameters of output liquid is so the present invention has the success ratio height of experiment, experimental data is accurate, safe and reliable advantage.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the inventive embodiments structural representation.
1-check valve among the figure, the 2-thermostat, 3-cryogenic thermostat circulator, the 4-intermediate receptacle, the 5-air compressor, the 6-tensimeter, 7-pressure is from the motion tracking pump.
Embodiment
A kind of back pressure automaton as shown in Figure 1 comprises check valve 1, thermostat 2, and with air compressor 5 with link to each other from motion tracking pump 7, described thermostat 2 outer being provided with are attached thereto the automatic temperature control that connects.The effect that automatic temperature control is set is to form second temperature field in the thermostat of check valve is housed, and realizes system pipeline outlet output material temperature auto control.Described check valve 1 is two diaphragm piston formula check valves.Described automatic temperature control is a cryogenic thermostat circulator 3.Described cryogenic thermostat circulator 3 can be realized the accurate adjustment control than large-temperature range.Be provided with intermediate receptacle 4 between described check valve 1 and the described air compressor 5, this intermediate receptacle 4 links to each other from motion tracking pump 7 with described with described check valve 1, described air compressor 5.The effect that this intermediate receptacle 4 is set is in pressure buffer effect between motion tracking pump 7 and check valve 1, improves the performance of check valve.Be provided with tensimeter 6 at described intermediate receptacle 4 and described pressure between motion tracking pump 7, this tensimeter 6 links to each other from motion tracking pump 7 with described with described intermediate receptacle 4, described air compressor 5.The effect that tensimeter 6 is set is to make things convenient for the pressure of observing system to change.
Principle of work: before the experiment beginning, utilize air compressor 5 to make in the air-pressure chamber of check valve 1 and the intermediate receptacle 4 and be full of pressure gas.Set pressure is from motion tracking pump 7 internal pressures.At the experiment initial stage, the sticking warm nature of based on crude is set cryogenic thermostat circulator 3, makes conduction oil constant temperature in the thermostat 2 at higher temperature (about 80.0 ℃) state, prevents that crude oil from reducing viscosity at outlet Yin Wendu and increasing and produce additional drag and system pressure is increased.If crude oil generation tackify causes system pressure to raise a little, then reduce back pressure automatically from motion tracking pump 7, phase is stable in the assurance system; The experiment middle and later periods because of output object based on high-temperature steam, steam carries out exchange heat in second temperature field and conduction oil by check valve and pipeline, make high-temperature steam liquefy in the shortest time, if because heat interchange fully makes high-temperature steam cause system pressure slightly to reduce then from motion tracking pump 7 induction and regulate back pressure and make instantaneous the closing of outlet prevent the steam ejection automatically from outlet ejection inadequately.
Claims (6)
1. the back pressure automaton comprises check valve, it is characterized in that described check valve outside is provided with the thermostat of band pipeline connecting hole, and with air compressor with link to each other from the motion tracking pump.
2. a kind of back pressure automaton as claimed in claim 1 is characterized in that described check valve is two diaphragm piston formula check valves.
3. back pressure automaton as claimed in claim 1 or 2 is characterized in that described thermostat is provided with automatic temperature control.
4. back pressure automaton as claimed in claim 3 is characterized in that described automatic temperature control is the cryogenic thermostat circulator.
5. back pressure automaton as claimed in claim 4 is characterized in that being provided with intermediate receptacle between described check valve and the described air compressor, and this intermediate receptacle links to each other from the motion tracking pump with described with described check valve, described air compressor.
6. back pressure automaton as claimed in claim 5 is characterized in that described intermediate receptacle and describedly is provided with tensimeter between the motion tracking pump that this tensimeter links to each other from the motion tracking pump with described with described intermediate receptacle, described air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101188936A CN102237005A (en) | 2011-05-10 | 2011-05-10 | Automatic back pressure control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101188936A CN102237005A (en) | 2011-05-10 | 2011-05-10 | Automatic back pressure control device |
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| CN102237005A true CN102237005A (en) | 2011-11-09 |
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| CN2011101188936A Pending CN102237005A (en) | 2011-05-10 | 2011-05-10 | Automatic back pressure control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823045A (en) * | 2014-02-26 | 2014-05-28 | 中国海洋石油总公司 | Separating, acquiring and metering method and apparatus for fluid produced in thermal recovery physical simulation experiment on heavy oil |
| CN105651648A (en) * | 2016-03-21 | 2016-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Replacement and absorption-desorption simulation test system and method |
| CN106290786A (en) * | 2016-08-04 | 2017-01-04 | 中国海洋石油总公司 | A kind of heavy crude heat extraction rock core displacement test device and experiment pressure reduction antihunt means thereof |
| CN105569637B (en) * | 2014-11-07 | 2019-01-18 | 中国石油化工股份有限公司 | Heavy crude heat extraction microscopic displacement experiment system |
| CN113047820A (en) * | 2019-12-11 | 2021-06-29 | 中国石油天然气股份有限公司 | Back pressure control device and method for thickened oil thermal recovery experiment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2080104A1 (en) * | 1992-02-27 | 1993-08-28 | Sidney R. Smith | Method of measuring capillary pressures |
| CN2620759Y (en) * | 2003-03-04 | 2004-06-16 | 刘利安 | Well head flow path electric heating device |
| CN2751296Y (en) * | 2004-11-26 | 2006-01-11 | 中国石油化工股份有限公司***分公司采油工程技术研究院 | Formation injury tester |
| CN2913752Y (en) * | 2006-05-26 | 2007-06-20 | 中国石化股份胜利油田分公司地质科学研究院 | Piston type back pressure valve |
| CN201035412Y (en) * | 2007-03-29 | 2008-03-12 | 大庆油田有限责任公司 | High-pressure air flow control testing apparatus |
| CN101561362A (en) * | 2009-05-13 | 2009-10-21 | 中国石油大学(北京) | Three-dimensional experimental device for simulating lithologic reservoir forming |
| CN101725336A (en) * | 2009-11-20 | 2010-06-09 | 西南石油大学 | Method for oil extraction by means of air injection and low-temperature oxidation and experiment device |
| CN101761326A (en) * | 2009-12-30 | 2010-06-30 | 中国科学院广州能源研究所 | Simulation method and experimental device for carbon dioxide replacement exploitation of gas hydrate |
| CN101864948A (en) * | 2010-06-04 | 2010-10-20 | 海安县石油科研仪器有限公司 | Fracturing acidification working solution dynamic filtration loss instrument |
| CN101866145A (en) * | 2010-06-04 | 2010-10-20 | 海安县石油科研仪器有限公司 | Intelligent well simulation experiment device |
| CN201610735U (en) * | 2010-03-11 | 2010-10-20 | 湖北创联石油科技有限公司 | Back-pressure valve |
-
2011
- 2011-05-10 CN CN2011101188936A patent/CN102237005A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2080104A1 (en) * | 1992-02-27 | 1993-08-28 | Sidney R. Smith | Method of measuring capillary pressures |
| CN2620759Y (en) * | 2003-03-04 | 2004-06-16 | 刘利安 | Well head flow path electric heating device |
| CN2751296Y (en) * | 2004-11-26 | 2006-01-11 | 中国石油化工股份有限公司***分公司采油工程技术研究院 | Formation injury tester |
| CN2913752Y (en) * | 2006-05-26 | 2007-06-20 | 中国石化股份胜利油田分公司地质科学研究院 | Piston type back pressure valve |
| CN201035412Y (en) * | 2007-03-29 | 2008-03-12 | 大庆油田有限责任公司 | High-pressure air flow control testing apparatus |
| CN101561362A (en) * | 2009-05-13 | 2009-10-21 | 中国石油大学(北京) | Three-dimensional experimental device for simulating lithologic reservoir forming |
| CN101725336A (en) * | 2009-11-20 | 2010-06-09 | 西南石油大学 | Method for oil extraction by means of air injection and low-temperature oxidation and experiment device |
| CN101761326A (en) * | 2009-12-30 | 2010-06-30 | 中国科学院广州能源研究所 | Simulation method and experimental device for carbon dioxide replacement exploitation of gas hydrate |
| CN201610735U (en) * | 2010-03-11 | 2010-10-20 | 湖北创联石油科技有限公司 | Back-pressure valve |
| CN101864948A (en) * | 2010-06-04 | 2010-10-20 | 海安县石油科研仪器有限公司 | Fracturing acidification working solution dynamic filtration loss instrument |
| CN101866145A (en) * | 2010-06-04 | 2010-10-20 | 海安县石油科研仪器有限公司 | Intelligent well simulation experiment device |
Non-Patent Citations (1)
| Title |
|---|
| 秦积舜: "油藏条件下泡沫油的油气相渗规律研究", 《西安石油大学学报（自然科学版）》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823045A (en) * | 2014-02-26 | 2014-05-28 | 中国海洋石油总公司 | Separating, acquiring and metering method and apparatus for fluid produced in thermal recovery physical simulation experiment on heavy oil |
| CN103823045B (en) * | 2014-02-26 | 2016-01-20 | 中国海洋石油总公司 | Heavy crude heat extraction logistics organizations produced fluid is separated and gathers metering method and device |
| CN105569637B (en) * | 2014-11-07 | 2019-01-18 | 中国石油化工股份有限公司 | Heavy crude heat extraction microscopic displacement experiment system |
| CN105651648A (en) * | 2016-03-21 | 2016-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Replacement and absorption-desorption simulation test system and method |
| CN105651648B (en) * | 2016-03-21 | 2018-11-09 | 中国华能集团清洁能源技术研究院有限公司 | It is a kind of to replace and adsorb analytic simulation test system and method |
| CN106290786A (en) * | 2016-08-04 | 2017-01-04 | 中国海洋石油总公司 | A kind of heavy crude heat extraction rock core displacement test device and experiment pressure reduction antihunt means thereof |
| CN113047820A (en) * | 2019-12-11 | 2021-06-29 | 中国石油天然气股份有限公司 | Back pressure control device and method for thickened oil thermal recovery experiment |
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Application publication date: 20111109 |