CN101196271A - Oil-gas mixed flow technique for processing large segment plug flow in primary oil collecting and delivering process - Google Patents
Oil-gas mixed flow technique for processing large segment plug flow in primary oil collecting and delivering process Download PDFInfo
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- CN101196271A CN101196271A CN 200710019019 CN200710019019A CN101196271A CN 101196271 A CN101196271 A CN 101196271A CN 200710019019 CN200710019019 CN 200710019019 CN 200710019019 A CN200710019019 A CN 200710019019A CN 101196271 A CN101196271 A CN 101196271A
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Abstract
The invention relates to a crude oil transportation technics method, in particular to an oil-gas mixture transportation technics method for processing the slug flow at big segment during transporting crude oil, which is characterized in that: an input oil-gas (1) enters into an oil-gas separating cavity (3) of a separating cushioning device (2); part of associated gas separated can serve as the technics self-using fuel (4); the oil-gas can assemble at a liquid collecting cavity (5) of the separating cushioning device (2) and can flow out from an overflow outlet pipe (6) when the liquid level raising to certain height and then can enter into an oil-gas transportation screw pump (7) for adding pressure; then the liquid oil can pass through a pipeline separator (8) to complete the transportation of the external transported oil-gas. Under the condition that flow is plugged at large segment, the invention ensures the normal and effective operation of the oil-gas multiphase flow screw pump, thereby radically preventing the phenomena as unable to pumping, vibration and heating, etc. Without needing to independently lay the gas pipe-lines, the invention saves the project investment, prevents the associated gas from losing and polluting environment and eliminates the safety hidden trouble.
Description
Technical field
The present invention relates to handle in a kind of crude oil transmission technological method, particularly crude oil transmission process the oil and gas multiphase flow technological method of big strand slug flow.
Background technique
In the defeated process of crude oil collection, big strand irregular slug flow often appears in the gathering line front end.When at this moment oil transfer pump remains in operation and carries, oil transfer pump just occurred and do not gone up phenomenons such as amount, vibrations and heating, have a strong impact on crude oil gathering system safe, normally and steady running.
For this reason, the existing processes technology adopts the middle transfer station in the crude oil transmission process that this part oil field gas in the slug flow of Crude Oil Transportation process generation is separated and emptying, or lays the line separately and carry.The result causes the loss waste of associated gas resource, provides environment and pollutes, and occurs potential safety hazard easily, and the defeated cost of collection is increased.
Summary of the invention
The purpose of this invention is to provide the oil and gas multiphase flow technological method of handling big strand slug flow in a kind of crude oil transmission process, so that fundamentally avoid pump not go up phenomenons such as amount, vibrations and heating.Need not to lay separately gas transmission line, saved construction investment, stopped the emptying loss of associated gas and the pollution of environment.
The object of the present invention is achieved like this, design the oil and gas multiphase flow technological method of handling big strand slug flow in a kind of crude oil transmission process, it is characterized in that: input oil gas 1 enters the Oil-gas Separation chamber 3 of separation buffer device 2, isolated a part of associated gas is as the personal fuel gas 4 of technology, fluid comes together in the liquid collecting cavity 5 of separation buffer device 2, flow out by overflow drain pipe 6 during in liquid level, enter 7 pressurizations of oil gas conveyor worm pump, the conveying of oil transportation gas outside pipeline liquor separator 8 is finished again to certain altitude.
The Oil-gas Separation chamber 3 of described separation buffer device 2 is communicated with by pipeline with input oil gas 1, the associated gas output pipeline in Oil-gas Separation chamber 3 is connected with personal fuel gas 4 input ends of technology, the liquid collecting cavity 5 of separation buffer device 2 communicates with the fluid in Oil-gas Separation chamber 3, overflow drain pipe 6 is arranged in the separation buffer device 2, overflow drain pipe 6 is connected with oil gas conveyor worm pump 7 input ends, oil gas conveyor worm pump 7 is connected with pipeline liquor separator 8 pipelines, and pipeline liquor separator 8 has outer oil transportation gas port 14.
Be connected with feed liquor cross over pipe 9 on the branch road of the pipeline between described oil gas conveyor worm pump 7 and the overflow drain pipe 6, feed liquor cross over pipe 9 the other ends are communicated with separation buffer device 2 bottoms, feed liquor cross over pipe 9 is serially connected with oil supply flow control valve 10, in order to regulate the feed liquor amount of oil gas conveyor worm pump 7.
Be provided with backflow cross over pipe 11 between described separation buffer device 2 and the pipeline liquor separator 8, backflow cross over pipe 11 serial connection reflux valves 12, reflux valve 12 and reflux liquid level controller 13 UNICOMs, a liquid part that makes output makes the following space of the separation buffer device 2 interior overflow fluid mouths of pipe remain liquid level in pipeline liquor separator 8 is back to separation buffer device 2 again.
Advantage of the present invention is: carry out Oil-gas Separation because input oil gas at first enters the Oil-gas Separation chamber of separation buffer device, guarantee that when gas-liquid mixture advances knock out drum the liquids and gases flow that pump is failed away equals the into liquids and gases flow of knock out drum.Enter the following space of pump flow-off in the knock out drum, store a large amount of fluid all the time.Big strand slug flow comes interim, utilizes this part liquid to seal mixing defeated screw pump, and lubricated and cooling guarantees normal, the effectively operation of screw pump.Be provided with pipeline liquor separator and backflow mechanism simultaneously., make the liquid part of output be back to knock out drum again, thereby further prolong the time of processing plug flow section because the big strand slug flow for the treatment of capacity when reducing to certain low bit line, is opened reflux valve automatically when the buffering pot liquid through the pipeline liquor separator.Fundamentally avoid pump not go up phenomenons such as amount, vibrations and heating.Integrated artistic does not adopt and lays gas transmission line separately, has saved construction investment, has stopped the emptying loss of associated gas and to the pollution of environment.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is an embodiment of the invention manufacturing equipment structural representation.
Among the figure: 1, input oil gas; 2, separation buffer device; 3, Oil-gas Separation chamber; 4, the personal fuel gas of technology; 5, liquid collecting cavity; 6, overflow drain pipe; 7, oil gas conveyor worm pump; 8, pipeline liquor separator; 9, feed liquor cross over pipe; 10, oil supply flow control valve; 11, backflow cross over pipe; 12, reflux valve; 13, reflux liquid level controller; 14, outer oil transportation gas port.
Embodiment
As shown in Figure 1, the Oil-gas Separation chamber 3 of separation buffer device 2 is communicated with by pipeline with input oil gas 1, input oil gas 1 enters the Oil-gas Separation chamber 3 of separation buffer device 2 by pipeline, isolated a part of associated gas, associated gas output pipeline by Oil-gas Separation chamber 3 is carried to personal fuel gas 4 input ends of technology, as the personal fuel gas 4 of technology.The fluid that separate in Oil-gas Separation chamber 3 is by entering liquid collecting cavity 5 with the passage that communicates of separation buffer device 2.Overflow drain pipe 6 is arranged in the separation buffer device 2, and overflow drain pipe 6 is connected with oil gas conveyor worm pump 7 input ends, and oil gas conveyor worm pump 7 is connected with pipeline liquor separator 8 pipelines, and pipeline liquor separator 8 has outer oil transportation gas port 14.Be higher than upper end when outlet of overflow drain pipe 6 at liquid level, flow out, enter 7 pressurizations of oil gas conveyor worm pump, the conveying of oil transportation gas 14 outside pipeline liquor separator 8 is finished again by overflow drain pipe 6.
The pipeline of fluid before 6 outflows of overflow drain pipe enter oil gas conveyor worm pump 7 is provided with the cross over pipe 9 between the separation buffer device, and oil supply flow control valve 10 is installed, in order to regulate the feed liquor amount of oil gas conveyor worm pump 7.
Because input oil gas 1 is by entering separation buffer device 2,3 carry out Oil-gas Separation in the Oil-gas Separation chamber.Guarantee that when gas-liquid mixture advances knock out drum the liquids and gases flow that pump is failed away equals the into liquids and gases flow of knock out drum.Space in separation buffer device 2 below the overflow fluid mouth of pipe stores a large amount of fluid all the time.Big strand slug flow comes interim, utilizes the fluid that stores that oil gas conveyor worm pump 7 is sealed, lubricated and cooling, and oil gas conveyor worm pump 7 can not produce phenomenons such as vibrations and heating, can guarantee 7 normal, the effectively operations of oil gas conveyor worm pump.
In order to prevent liquid in the separation buffer device 2 owing to handle a big strand slug flow and reduce to the overflow fluid mouth of pipe and produce vibrations again with upper/lower positions and generate heat, between separation buffer device 2 and pipeline liquor separator 8, cross over pipe 11 is set, cross over pipe 11 serial connection reflux valves 12, reflux valve 12 and reflux liquid level controller 13 UNICOMs, automatically open reflux valve 12, a liquid part that makes output makes the following space of the separation buffer device 2 interior overflow fluid mouths of pipe remain liquid level in pipeline liquor separator 8 is back to separation buffer device 2 again.Thereby further prolong the time of handling the plug flow section.
Claims (4)
1. handle the oil and gas multiphase flow technological method of big strand slug flow in the crude oil transmission process, it is characterized in that: input oil gas (1) enters the Oil-gas Separation chamber (3) of separation buffer device (2), isolated a part of associated gas is as the personal fuel gas (4) of technology, fluid comes together in the liquid collecting cavity (5) of separation buffer device (2), flow out by overflow drain pipe (6) during in liquid level to certain altitude, enter oil gas conveyor worm pump (7) pressurization, the conveying of oil transportation gas outside pipeline liquor separator (8) is finished again.
2. the device that the oil and gas multiphase flow technological method of the big strand slug flow of processing is adopted in the crude oil transmission process according to claim 1, it is characterized in that: the Oil-gas Separation chamber (3) of described separation buffer device (2) is communicated with by pipeline with input oil gas (1), the associated gas output pipeline in Oil-gas Separation chamber (3) is connected with personal fuel gas (4) input end of technology, the liquid collecting cavity of separation buffer device (2) communicates with the fluid in Oil-gas Separation chamber, overflow drain pipe (6) is arranged in the separation buffer device (2), overflow drain pipe (6) is connected with oil gas conveyor worm pump (7) input end, oil gas conveyor worm pump (7) is connected with pipeline liquor separator (8) pipeline, and pipeline liquor separator (8) has outer oil transportation gas port (14).
3. handle the oil and gas multiphase flow device of big strand slug flow in the crude oil transmission process according to claim 2, it is characterized in that: be connected with feed liquor cross over pipe (9) on the branch road of the pipeline between described oil gas conveyor worm pump (7) and the overflow drain pipe (6), feed liquor cross over pipe (9) the other end is communicated with separation buffer device (2) bottom, feed liquor cross over pipe (9) is serially connected with oil supply flow control valve (10), in order to regulate the feed liquor amount of oil gas conveyor worm pump.
4. handle the oil and gas multiphase flow device of big strand slug flow in the crude oil transmission process according to claim 2, it is characterized in that: be provided with backflow cross over pipe (11) between described separation buffer device (2) and the pipeline liquor separator (8), backflow cross over pipe (11) serial connection reflux valve (12), reflux valve (12) and reflux liquid level controller (13) UNICOM, a liquid part that makes output makes the following space of the interior overflow fluid of separation buffer device (2) mouth of pipe remain liquid level in pipeline liquor separator (8) is back to separation buffer device (2) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710019019 CN101196271B (en) | 2007-11-08 | 2007-11-08 | Oil-gas mixed flow technique for processing large segment plug flow in primary oil collecting and delivering process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710019019 CN101196271B (en) | 2007-11-08 | 2007-11-08 | Oil-gas mixed flow technique for processing large segment plug flow in primary oil collecting and delivering process |
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| Publication Number | Publication Date |
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| CN101196271A true CN101196271A (en) | 2008-06-11 |
| CN101196271B CN101196271B (en) | 2011-11-09 |
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| CN 200710019019 Expired - Fee Related CN101196271B (en) | 2007-11-08 | 2007-11-08 | Oil-gas mixed flow technique for processing large segment plug flow in primary oil collecting and delivering process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922612A (en) * | 2010-08-02 | 2010-12-22 | 西安交通大学 | Multiphase flow drag reducer assembling apparatus and assembling method |
| CN104075113A (en) * | 2014-06-27 | 2014-10-01 | 西安长庆科技工程有限责任公司 | Oil-gas mixing transportation system and control method |
| CN104180160A (en) * | 2014-09-01 | 2014-12-03 | 汉纬尔机械(上海)有限公司 | Oil-gas mixing transportation system for screw compressor |
| CN105864638A (en) * | 2016-05-26 | 2016-08-17 | 成都正升能源技术开发有限公司 | Compressor set capable of achieving gas-liquid mixed delivery function |
| CN106322119A (en) * | 2016-09-14 | 2017-01-11 | 西南石油大学 | Accumulated fluid drainage device and control method of gas field gathering and transporting system |
| WO2020088012A1 (en) * | 2018-10-31 | 2020-05-07 | 官天日 | Multiphase flow mixed delivery method employing reciprocating driving performed by liquid in two chambers and device thereof |
| CN112113142A (en) * | 2020-07-28 | 2020-12-22 | 重庆明珠机电有限公司 | Oil-gas mixed transportation system and working method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1707428A1 (en) * | 1989-09-21 | 1992-01-23 | Государственный научно-исследовательский и проектный институт нефтяной и газовой промышленности им.В.И.Муравленко | System for preparing crude oil for transport |
| RU2014554C1 (en) * | 1992-02-19 | 1994-06-15 | Нефтегазодобывающее управление "Ласьеганнефть" | Oil accumulating plant |
| CN2578662Y (en) * | 2002-11-04 | 2003-10-08 | 姚瑞忠 | Oil-well gas-liquid mixing conveyance |
| CN2851810Y (en) * | 2005-11-10 | 2006-12-27 | 吉林石油集团有限责任公司 | Big ring like mixing and gathering transportation system |
| CN201126100Y (en) * | 2007-11-08 | 2008-10-01 | 西安长庆科技工程有限责任公司 | Oil-gas mixed transporting apparatus for processing large strand segment plug flow in petroleum crude concentrated transporting course |
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2007
- 2007-11-08 CN CN 200710019019 patent/CN101196271B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922612A (en) * | 2010-08-02 | 2010-12-22 | 西安交通大学 | Multiphase flow drag reducer assembling apparatus and assembling method |
| CN101922612B (en) * | 2010-08-02 | 2012-11-28 | 西安交通大学 | Multiphase flow drag reducer assembling apparatus and assembling method |
| CN104075113A (en) * | 2014-06-27 | 2014-10-01 | 西安长庆科技工程有限责任公司 | Oil-gas mixing transportation system and control method |
| CN104075113B (en) * | 2014-06-27 | 2017-02-01 | 西安长庆科技工程有限责任公司 | Oil-gas mixing transportation system and control method |
| CN104180160A (en) * | 2014-09-01 | 2014-12-03 | 汉纬尔机械(上海)有限公司 | Oil-gas mixing transportation system for screw compressor |
| CN104180160B (en) * | 2014-09-01 | 2017-05-03 | 汉纬尔机械(上海)有限公司 | Oil-gas mixing transportation system for screw compressor |
| CN105864638A (en) * | 2016-05-26 | 2016-08-17 | 成都正升能源技术开发有限公司 | Compressor set capable of achieving gas-liquid mixed delivery function |
| CN106322119A (en) * | 2016-09-14 | 2017-01-11 | 西南石油大学 | Accumulated fluid drainage device and control method of gas field gathering and transporting system |
| CN106322119B (en) * | 2016-09-14 | 2018-03-30 | 西南石油大学 | Gas field gathering system hydrops discharger and control method |
| WO2020088012A1 (en) * | 2018-10-31 | 2020-05-07 | 官天日 | Multiphase flow mixed delivery method employing reciprocating driving performed by liquid in two chambers and device thereof |
| US11454351B2 (en) | 2018-10-31 | 2022-09-27 | Guangdong Guanfu Energy Technology Pte Ltd. | Multiphase flow mixed delivery method employing reciprocating driving performed by liquid in two chambers and device thereof |
| CN112113142A (en) * | 2020-07-28 | 2020-12-22 | 重庆明珠机电有限公司 | Oil-gas mixed transportation system and working method thereof |
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| CN101196271B (en) | 2011-11-09 |
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