CN103883290A - Multiphase flow mixing and conveying system for offshore oil and gas field - Google Patents
Multiphase flow mixing and conveying system for offshore oil and gas field Download PDFInfo
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- CN103883290A CN103883290A CN201410116869.2A CN201410116869A CN103883290A CN 103883290 A CN103883290 A CN 103883290A CN 201410116869 A CN201410116869 A CN 201410116869A CN 103883290 A CN103883290 A CN 103883290A
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Abstract
The invention discloses a multiphase flow mixing and conveying system for an offshore oil and gas field. The flow mixing and conveying system comprises a multiphase flow mixing and conveying mechanism which comprises a double-screw pump, an inlet of the double-screw pump is communicated with an offshore platform oil well, and an outlet of the double-screw pump is communicated with a seabed mixing and conveying pipeline. According to the multiphase flow mixing and conveying system for the offshore oil and gas field, mainly aiming at the material flow conveying characteristics of wellhead platforms in a small-scale offshore marginal oil-gas field and a satellite oil-gas field, the mode of respective pressurization in a traditional system is replaced by the mixing and conveying mode of simultaneous pressurization for a multiphase flow, so that the designed scale of the platform is reduced, investment cost is reduced, more small-scale offshore marginal oil-gas fields and satellite oil-gas fields have corresponding development value, the development efficiency of energy sources is improved, and the yield of the oil field is increased.
Description
Technical field
The present invention relates to a kind of offshore oil and gas field multiphase flow mixing and conveying system.
Background technology
Along with the exploitation of Offshore Oil Industry constantly develops, conventionally can adopt the pattern of regionl development to expand the scale of oil and gas development, make marine marginal small field, satellite be able to normal development and utilization.Offshore oil and gas field regionl development pattern is conventionally taking larger a certain oil field as processing center, conveying device outside oil, gas, water treatment facilities and the crude oil of this processing center configuration certain scale, natural gas, the marginal small field of this oil field periphery and the well head logistics of satellite are all transported to processing center and carry out separating treatment.In traditional handicraft method, carry and be divided into following steps for the well head logistics of small-sized oil field, limit and satellite: well head logistics need to realize separating of liquid and gas by eliminator, then respectively liquid and gas are distinguished to supercharging by output pump and compressor, liquid and gas outlet pressure is consistent, last liquid and gas mix and carry out submerged pipeline, are delivered to processing center.And along with oil field region exploitation is constantly goed deep into, the quantity of limit small field and satellite constantly increases, adopt not only technological process more complicated of conventional carrying method, investment cost is higher, and twice separation of needs, increase the consumption of the energy, so conventional transportation scheme is both uneconomical not energy-conservation, therefore proposed offshore oil and gas field multiphase flow supercharging simultaneously mixing and conveying system for similar technological process yet.
Summary of the invention
The object of this invention is to provide a kind of upper oil gas field multiphase flow mixing and conveying system, the present invention has simplified marine marginal small field and satellite oil, gas, water delivery technology, area and the weight of wellhead platform are reduced, can reduce oil field initial investment cost, realize the requirement of energy-saving and emission-reduction in offshore oil and gas field development process.
A kind of offshore oil and gas field multiphase flow mixing and conveying system provided by the present invention, it comprises a multiphase flow mixing conveying mechanism;
Described multiphase flow mixing conveying mechanism comprises Quimby pump;
The entrance of described Quimby pump is connected with offshore platform oil well, and described twin-screw delivery side of pump is connected with seabed mixed transporting tube line.
Offshore oil and gas field multiphase flow mixing and conveying system provided by the invention, described Quimby pump can be realized the mixing of the multiphase mediums such as oil, gas, water, sand and carry, wherein can realize the supercharging of full liquid, full gas operating mode carries, be less than 60 minutes running time but need to control full gas operating mode, pumped (conveying) medium sand content should be lower than one thousandth simultaneously.
In above-mentioned multiphase flow mixing and conveying system, described Quimby pump is driven by frequency conversion explosion proof motor, can realize the adjusting of rotating speed, and meets explosion-proof requirement, and the requirement that specifically can change according to pumped (conveying) medium, realizes the adjusting of described Quimby pump rotating speed.
In above-mentioned multiphase flow mixing and conveying system, described Quimby pump is connected by shaft coupling with described frequency conversion explosion proof motor, it is emphasized that described shaft coupling need to meet the requirement of Non-spark.
Offshore oil and gas field multiphase flow mixing and conveying system provided by the invention, mainly for the wellhead platform logistics transportation characteristics in the marginal small field in sea, satellite, substitute the mode of the difference supercharging in legacy system with the mixing mode of movement of multiphase flow supercharging simultaneously, to reduce the design scale of platform, reduce investment cost, allow more polygon border small field and satellite possess corresponding exploitation and be worth, improve the development efficiency of the energy, increase field output.
Brief description of the drawings
Fig. 1 is conventional offshore oil and gas field limit small field, the outer defeated process of satellite well head logistics supercharging.
Fig. 2 is the schematic diagram of offshore oil and gas field multiphase flow mixing and conveying system of the present invention.
In figure, each mark is as follows:
1 offshore platform oil well, 2 test and measuring devices, 3 primary separators, 4 natural gas compressors, 5 flare vent system, 6 oil, water output pump, 7 seabed mixed transporting tube lines, 8 offshore platform oil, gas, water treatment centers, 9 frequency conversion explosion proof motors, 10 shaft couplings, 11 Quimby pumps, 12 multiphase flow mixing conveying mechanisms.
In Fig. 1,
represent natural gas flow to;
represent that well head logistics (oil-containing, gas, water) flows to;
represent that oil water mixture flows to.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention be confined to following examples.
As shown in Figure 2, the schematic diagram of offshore oil and gas field multiphase flow mixing and conveying system provided by the invention, it comprises multiphase flow mixing conveying mechanism 12.Offshore platform oil well 1 is connected with test and measuring device 2, for measuring the volume of Produced Liquid.Wherein, the multiphase flow mixing conveying mechanism 12 in the present invention comprises the frequency conversion explosion proof motor 9, shaft coupling 10 and the Quimby pump 11 that connect successively, jointly carries with the safety that realizes multiphase flow.Wherein Quimby pump 11 is carried for the mixing of the multiphase mediums such as oil, gas, water, sand, can realize the supercharging of full liquid, full gas operating mode carries, be less than 60 minutes running time but need to control full gas operating mode, pumped (conveying) medium sand content should be lower than one thousandth simultaneously.Frequency conversion explosion proof motor 9, for driving Quimby pump 11, specifically can, according to the requirement of pumped (conveying) medium variation, regulate the rotating speed of Quimby pump 11.Shaft coupling 10 is for connecting frequency conversion explosion proof motor 9 and Quimby pump 11, and it need to meet the requirement of Non-spark.The heterogeneous fluid that multiphase flow mixing conveying mechanism 12 is carried is delivered to offshore platform oil, gas, water treatment centers 8 by seabed mixed transporting tube line 7.
On wellhead platform in THE WESTERN SOUTH CHINA SEA oil field region, be provided with the supercharging simultaneously of a set of multiphase flow and mix the device (system of the present invention) of carrying, reduce the configuration of eliminator, natural gas compressor, cooler, flare system etc., for platform is saved area approximately 450 ㎡, reduce the about 170t of weight of equipment, for platform overall investment reduces by approximately 2,600 ten thousand yuan of left and right, improve the economic benefit of this oil field development.
Offshore oil and gas field multiphase flow mixing and conveying system of the present invention carries out while supercharging applicable to the wellhead platform logistics in the marginal small field in sea, satellite and mixes conveying, utilize this system can substitute the conventional process that first separates, distinguishes again supercharging, reduce the configuration of eliminator, compressor, owing to there is no the equipment of container class in this system, all adopt pipeline to connect, it is fewer that gas, liquid separate possibility, do not need to arrange flare vent system.Thereby reduce the design scale that reduces wellhead platform, reduced Invitation of Oilfield Development expense, promoted the economic benefit in oil field; Technological process simultaneously, without torch emptying, has positive meaning for atmosphere environmental protection and energy-saving and emission-reduction.
Claims (3)
1. an offshore oil and gas field multiphase flow mixing and conveying system, is characterized in that: described multiphase flow mixing and conveying system comprises a multiphase flow mixing conveying mechanism;
Described multiphase flow mixing conveying mechanism comprises Quimby pump;
The entrance of described Quimby pump is connected with offshore platform oil well, and described twin-screw delivery side of pump is connected with seabed mixed transporting tube line.
2. multiphase flow mixing and conveying system according to claim 1, is characterized in that: described Quimby pump is driven by frequency conversion explosion proof motor.
3. multiphase flow mixing and conveying system according to claim 2, is characterized in that: described Quimby pump is connected by shaft coupling with described frequency conversion explosion proof motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410116869.2A CN103883290A (en) | 2014-03-26 | 2014-03-26 | Multiphase flow mixing and conveying system for offshore oil and gas field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410116869.2A CN103883290A (en) | 2014-03-26 | 2014-03-26 | Multiphase flow mixing and conveying system for offshore oil and gas field |
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| CN103883290A true CN103883290A (en) | 2014-06-25 |
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| CN201410116869.2A Pending CN103883290A (en) | 2014-03-26 | 2014-03-26 | Multiphase flow mixing and conveying system for offshore oil and gas field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553148A (en) * | 2019-08-02 | 2019-12-10 | 西安长庆科技工程有限责任公司 | Electromagnetic heating oil-gas mixed transportation 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 |
| CN116518305A (en) * | 2023-05-12 | 2023-08-01 | 延安众邦源实业有限公司 | Liquid-dominant multiphase supercharging device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110553148A (en) * | 2019-08-02 | 2019-12-10 | 西安长庆科技工程有限责任公司 | Electromagnetic heating oil-gas mixed transportation method |
| CN116518305A (en) * | 2023-05-12 | 2023-08-01 | 延安众邦源实业有限公司 | Liquid-dominant multiphase supercharging device and method |
| CN116518305B (en) * | 2023-05-12 | 2024-03-19 | 延安众邦源实业有限公司 | Liquid-dominant multiphase supercharging device and method |
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Application publication date: 20140625 |