CN101560880A - Supercritical well bore multi-phase flow test device - Google Patents
Supercritical well bore multi-phase flow test device Download PDFInfo
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- CN101560880A CN101560880A CN 200910015325 CN200910015325A CN101560880A CN 101560880 A CN101560880 A CN 101560880A CN 200910015325 CN200910015325 CN 200910015325 CN 200910015325 A CN200910015325 A CN 200910015325A CN 101560880 A CN101560880 A CN 101560880A
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Abstract
The invention relates to a supercritical well bore multi-phase flow test device which simulates exploitation of high-pressure and high-yield natural gas field under critical condition. The technical proposal is as follows: the test device comprises a water tank, a high-pressure hydraulic pump, a liquid flow controller, a high-pressure gas compressor, a high-pressure gas tank, a dryer, a gas flow controller, a gas-liquid mixer, a high-pressure well bore, an inner pipe, a return pipeline, a gas-liquid separating tank, a back pressure control system, a temperature control system, a void ratio measuring system and a pressure difference measuring system. The test device has the beneficial effects of (1) simulation of gas flow in the well bore under critical condition; (2) simulation of gas-liquid multi-phase flow under critical and supercritical conditions; (3) simulation of gas or gas-liquid multi-phase flow under normal pressure. The device can be built into a comprehensive supercritical well bore multi-phase flow simulation testing platform and become an important base for national supercritical well bore multi-phase flow research.
Description
One, technical field:
The present invention relates to the heterogeneous mobile experimental system of a kind of pit shaft, particularly a kind of supercritical well bore multi-phase flow test device of simulating high pressure under the critical condition, the exploitation of high yield gas field.
Two, background technology:
China southwest and the Northwest are containing the natural gas resource of a large amount of high pressure, high yield, high sulfur-bearing, these natural gas resources in China's energy total amount take up an area of proportion and increase gradually, just progressively become the developing focus of China's petroleum resources.But because that these regional ubiquity geological structure complexity, petroleum resources are buried is dark, strata pressure is high, output is high, some areas are with high concentration H
2S, and factor such as prediction of formation pressure difficulty make such gas reservoir development face many safety problems, exist many potential safety hazards.Therefore, the research of wellbore pressure control technology is the important subject in " completion safety technics system is bored in three high gas fields " field always.It bores the ability in completion safety technics level and autonomous exploration and development three high gas fields to promoting China three high gas fields, prevention and the generation of stopping the particularly serious accident of three high gas fields brill completions, have important practical significance and far-reaching historical meaning, also will have a tremendous social and economic benefits.
For " three height " gas reservoir, mostly bury darker, formation fluid is in critical or supercriticality, and critical or supercritical fluid has good dissolubility, under downhole condition, can dissolve a large amount of supercritical fluid in the drilling fluid, this heterogeneous fluid ties up to along being under pressure in the pit shaft migration process, influence of temperature variation, respectively meet in the system physical and chemical process and energy such as phase-state change or interphase mass transfer take place, the transmission of momentum, its result causes each physical parameter of borehole fluid to take place to change fast with well depth and time in the short time at the utmost point, makes the flowing law of annular space inner fluid become very complicated.How wait and predict that corresponding annular pressure section is a difficult point of accurately controlling wellbore pressure according to nowed forming, the phase-state change of annular space inner fluid under various different well depth conditions, the research of this respect at present is less, and the experimental facilities of simulation critical condition changes and do not appear in the newspapers.
Three, summary of the invention:
Purpose of the present invention is exactly the above-mentioned defective that exists at prior art, a kind of supercritical well bore multi-phase flow test device is provided, can simulate under the HTHP critical phase conditions, the experimental facilities of flowing law in the pit shaft of gas or gas-liquid two-phase fluid, and then can study the flow behavior of gas in pit shaft under the critical and super critical condition, set up pit shaft multiphase flow dynamic mechanical model and computational methods, prediction pit shaft multiphase flow pressure is for wellbore pressure control in the oil gas drilling lays the foundation.
Its technical scheme is: mainly by water pot, high-pressure hydraulic pump, liquid flow controller, high-pressure compressor, high pressure gas holder, dryer, gas flow controller, the gas-liquid two-phase blender, the high pressure pit shaft, interior pipe, reflux pipeline, knockout drum, the back pressure control system, temperature control system, void content measuring system and pressure differential pressure measurement system are formed, described high-pressure well tube inner chamber is provided with interior pipe, the outside is provided with impedance type void content meter, the bottom of described high pressure pit shaft connects the gas-liquid two-phase blender by pipeline, and the gas-liquid two-phase blender is communicated with gas flow controller and liquid flow controller respectively; Described gas flow controller connects dryer, high pressure gas holder and high-pressure compressor successively, and described liquid flow controller connects high-pressure hydraulic pump and water pot successively; The top of described high pressure pit shaft connects reflux pipeline, and the other end of described reflux pipeline is communicated with water pot by knockout drum, back pressure control system and modulator.
Be provided with heating rod, temperature control system, water monitor and temperature monitor in the above-mentioned water pot, the water in the water pot is heated by heating rod, and temperature is controlled by temperature control system, and to keep the pilot system temperature constant, maximum temperature can reach 90 degree.
Above-mentioned knockout drum is communicated with back pressure control system and modulator, the back pressure control system, to keep the pilot system constant pressure, the pit shaft maximum pressure can reach 10Mpa, the water that separates flows into water pot through reflux pipeline, and gas is directly arranged atmosphere through counterbalance valve.
The length of above-mentioned high pressure pit shaft is 14m, outer external diameter of pipe 140m, and outer tube diameter 130mm, interior external diameter of pipe 60mm, the outlet of high pressure pit shaft is provided with pressure gauge, and the two ends up and down of high pressure pit shaft are respectively equipped with differential manometer and impedance type void content meter; The void content measuring system is in order to judge flow pattern, to measure bobble rise velocity, void content velocity of wave propagation etc.; The pressure differential pressure measurement system is in order to research wellbore gas or heterogeneous flowing law.
The invention has the beneficial effects as follows: can realize the wellbore gas under the HTHP super critical condition or the simulation of gas-liquid polyphase flow phenomenon, be the requisite important tool of three high gas-field exploitation technical research.This equipment can be realized: the simulation of (1) super critical condition well-sinking gas flow; (2) gas-liquid polyphase flow flow simulating under the critical and super critical condition; (3) gas or gas-liquid polyphase flow flow simulating under the normal pressure.Building up of this equipment will form a comprehensive overcritical pit shaft multiphase flow dynamic simulated experiment porch, becomes the important base of domestic overcritical pit shaft multiphase flow research.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Among the last figure: water pot 1, high-pressure hydraulic pump 2, liquid flow controller 3, high-pressure compressor 4, high pressure gas holder 5, dryer 6, gas flow controller 7, gas-liquid two-phase blender 8, high pressure pit shaft 9, interior pipe 10, reflux pipeline 11, knockout drum 12, back pressure control system 13, reflux pipeline 14, impedance type void content meter 15,15 ', 15 "; differential manometer 16; 16 '; temperature controller 17; pressure gauge 18; heating rod 19, temperature control system 20, water monitor 21, temperature monitor 22, computer control 23, holding wire 24, modulator 25.
Five, the specific embodiment:
Embodiment 1: in conjunction with the accompanying drawings 1, and the present invention is described in further detail (simulation of super critical condition well-sinking gas flow):
Overall structure is: mainly by water pot 1, high-pressure hydraulic pump 2, liquid flow controller 3, high-pressure compressor 4, high pressure gas holder 5, dryer 6, gas flow controller 7, gas-liquid two-phase blender 8, high pressure pit shaft 9, interior pipe 10, reflux pipeline 11, knockout drum 12, back pressure control system 13, reflux pipeline 14, impedance type void content meter 15,15 ', 15 "; differential manometer 16; 16 '; temperature controller 17; pressure gauge 18; heating rod 19, temperature control system 20, water monitor 21, temperature monitor 22, computer control 23, holding wire 24, modulator 25 connects to form.
Be used for simulating the pit shaft flowing law of super dark natural gas well drilling process under super critical condition.
Its technical scheme is: above-mentioned other structures are constant, and water pot 1, high-pressure hydraulic pump 2, liquid flow controller 3, void content meter 15 do not need work.Gases at high pressure are provided by high-pressure compressor 4, high pressure gas holder 5, dryer 6, gas flow controller 7, two blenders 8 of the gas-liquid of flowing through, high pressure pit shaft 9, interior pipe 10, reflux pipeline 11, knockout drum 12, back pressure control system 13, differential manometer 16 is used to measure flow differential pressure.Can realize that by control back pressure (maximum 10MPa) the overcritical of gas flowed in the pit shaft.The flow parameter that can measure has pit shaft inlet pressure, outlet pressure, along journey pressure reduction, flow, temperature etc., so that computational analysis.
Embodiment 2: in conjunction with the accompanying drawings 1, and the present invention is described in further detail (critical and super critical condition under gas-liquid polyphase flow flow simulating):
Be used for simulating super dark natural gas well drilling process under super critical condition and the pit shaft flowing law of liquid output arranged.
Its technical scheme is: above-mentioned other structures are constant, water pot 1, high-pressure hydraulic pump 2, liquid flow controller 3 is used to provide high-pressure flow liquid, heating rod 19 heats and is used for adding hot water, by temperature controller 20 control temperature values, gases at high pressure are by high-pressure compressor 4, high pressure gas holder 5, dryer 6, gas flow controller 7 provides, two blenders 8 of the gas-liquid of flowing through, high pressure pit shaft 9, interior pipe 10, reflux pipeline 11, knockout drum 12, back pressure control system 13, differential manometer 16 is used to measure flow differential pressure, and void content meter 15 is used to measure flow process pit shaft void fraction and void content fluctuation.Can realize the pit shaft internal pressure by control back pressure (maximum 10MPa), make gas in the super critical condition current downflow.The flow parameter that can measure has pit shaft inlet pressure, outlet pressure, along journey pressure reduction, flow, void content ripple, averga cross section void fraction, temperature etc., so that computational analysis.
Embodiment 3: in conjunction with the accompanying drawings 1, and the present invention is described in further detail (gas or gas-liquid polyphase flow flow simulating under the normal pressure):
With above-mentioned embodiment 2, just not working of back pressure control system 13 makes the logical atmosphere of pit shaft outlet just can realize.
Claims (4)
1, a kind of supercritical well bore multi-phase flow test device, it is characterized in that: mainly by water pot (1), high-pressure hydraulic pump (2), liquid flow controller (3), high-pressure compressor (4), high pressure gas holder (5), dryer (6), gas flow controller (7), gas-liquid two-phase blender (8), high pressure pit shaft (9), interior pipe (10), reflux pipeline (11), knockout drum (12), back pressure control system (13), temperature control system (20), void content measuring system and pressure differential pressure measurement system are formed, described high pressure pit shaft (9) inner chamber is provided with interior pipe (10), the outside is provided with impedance type void content meter (15,15 ', 15 "); the bottom of described high pressure pit shaft (9) connects gas-liquid two-phase blender (8) by pipeline, and gas-liquid two-phase blender (8) is communicated with gas flow controller (7) and liquid flow controller (3) respectively; Described gas flow controller (7) connects dryer (6), high pressure gas holder (5) and high-pressure compressor (4) successively, and described liquid flow controller (3) connects high-pressure hydraulic pump (2) and water pot (1) successively; The top of described high pressure pit shaft (9) connects reflux pipeline (11), and the other end of described reflux pipeline (11) is communicated with water pot (1) by knockout drum (12), back pressure control system (13) and modulator (25).
2, supercritical well bore multi-phase flow test device according to claim 1, it is characterized in that: be provided with heating rod (19), temperature control system (20), water monitor (21) and temperature monitor (22) in the described water pot (1), water in the water pot is by heating rod (19) heating, and temperature is controlled by temperature control system (20).
3, supercritical well bore multi-phase flow test device according to claim 1, it is characterized in that: described knockout drum (12) is communicated with back pressure control system (13) and modulator (25), water level is controlled by modulator (25), the water that separates flows into water pot (1) through reflux pipeline (14), and gas is directly arranged atmosphere through counterbalance valve.
4, supercritical well bore multi-phase flow test device according to claim 1, it is characterized in that: the length of described high pressure pit shaft (9) is 14m, outer external diameter of pipe 140m, outer tube diameter 130mm, interior external diameter of pipe 60mm, high pressure pit shaft outlet is provided with pressure gauge (18), and the two ends up and down of high pressure pit shaft are respectively equipped with differential manometer (16,16 ') and impedance type void content meter (15,15 ', 15 ").
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| CN 200910015325 CN101560880B (en) | 2009-05-15 | 2009-05-15 | Supercritical well bore multi-phase flow test device |
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| CN 200910015325 CN101560880B (en) | 2009-05-15 | 2009-05-15 | Supercritical well bore multi-phase flow test device |
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| CN101560880A true CN101560880A (en) | 2009-10-21 |
| CN101560880B CN101560880B (en) | 2012-12-19 |
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| CN 200910015325 Expired - Fee Related CN101560880B (en) | 2009-05-15 | 2009-05-15 | Supercritical well bore multi-phase flow test device |
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| CN101936158A (en) * | 2010-08-14 | 2011-01-05 | 中国石油大学(华东) | Test method for wellbore multiphase flow under supercritical condition |
| CN102128031A (en) * | 2011-01-11 | 2011-07-20 | 西南石油大学 | Simulation device and method for researching horizontal well gas-liquid two-phase pipe flow mechanism |
| CN102606139A (en) * | 2012-03-02 | 2012-07-25 | 中国石油大学(华东) | Underwater wellhead system load test device and test method thereof |
| CN102606136A (en) * | 2012-04-01 | 2012-07-25 | 中国石油大学(华东) | Logging-while-drilling value response law simulated experimental device |
| CN101709639B (en) * | 2009-11-20 | 2013-08-21 | 中国石油大学(华东) | Mineshaft multiphase flow device for simulating deep-water oil and gas production |
| CN103726815A (en) * | 2012-10-11 | 2014-04-16 | 中国石油化工股份有限公司 | CO2 flooding extraction well shaft flow state determining and parameter optimizing method |
| CN104234708A (en) * | 2014-09-11 | 2014-12-24 | 西安石油大学 | Multifunctional shaft oil-gas-water multi-phase flow simulation experiment device |
| CN104879094A (en) * | 2015-05-11 | 2015-09-02 | 中国石油天然气股份有限公司 | Downhole throttling gas well shaft simulation experiment apparatus |
| CN105242014A (en) * | 2015-10-22 | 2016-01-13 | 中国石油天然气股份有限公司 | Underground gas-liquid simulative testing system |
| CN106124705A (en) * | 2016-07-21 | 2016-11-16 | 中国地质大学（武汉） | A kind of biphase gas and liquid flow analog |
| CN106401580A (en) * | 2016-11-28 | 2017-02-15 | 中国石油大学(北京) | Multiphase flow experimental device for complex inner boundary multi-heat-source lifting shaft |
| CN109580207A (en) * | 2018-12-28 | 2019-04-05 | 中国科学院武汉岩土力学研究所 | A kind of downhole packer method for testing performance and device |
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Family Cites Families (3)
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| US5589642A (en) * | 1994-09-13 | 1996-12-31 | Agar Corporation Inc. | High void fraction multi-phase fluid flow meter |
| CN1170260C (en) * | 2002-04-23 | 2004-10-06 | 西安交通大学 | Gas-liquid-solid multiphase flow simulating method and plant |
| CN1251160C (en) * | 2004-05-31 | 2006-04-12 | 中国科学院力学研究所 | Split-phase mixed circulating oil gas and water multi-phase flow analog experimental devices |
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- 2009-05-15 CN CN 200910015325 patent/CN101560880B/en not_active Expired - Fee Related
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| CN101709639B (en) * | 2009-11-20 | 2013-08-21 | 中国石油大学(华东) | Mineshaft multiphase flow device for simulating deep-water oil and gas production |
| CN101936158A (en) * | 2010-08-14 | 2011-01-05 | 中国石油大学(华东) | Test method for wellbore multiphase flow under supercritical condition |
| CN102128031A (en) * | 2011-01-11 | 2011-07-20 | 西南石油大学 | Simulation device and method for researching horizontal well gas-liquid two-phase pipe flow mechanism |
| CN102606139B (en) * | 2012-03-02 | 2014-08-06 | 中国石油大学(华东) | Underwater wellhead system load test device and test method thereof |
| CN102606139A (en) * | 2012-03-02 | 2012-07-25 | 中国石油大学(华东) | Underwater wellhead system load test device and test method thereof |
| CN102606136A (en) * | 2012-04-01 | 2012-07-25 | 中国石油大学(华东) | Logging-while-drilling value response law simulated experimental device |
| CN103726815B (en) * | 2012-10-11 | 2016-03-02 | 中国石油化工股份有限公司 | A kind of CO 2drive produced well pit shaft fluidised form is determined and parameter optimization method |
| CN103726815A (en) * | 2012-10-11 | 2014-04-16 | 中国石油化工股份有限公司 | CO2 flooding extraction well shaft flow state determining and parameter optimizing method |
| CN104234708A (en) * | 2014-09-11 | 2014-12-24 | 西安石油大学 | Multifunctional shaft oil-gas-water multi-phase flow simulation experiment device |
| CN104879094B (en) * | 2015-05-11 | 2017-10-17 | 中国石油天然气股份有限公司 | A kind of downhole choke Wellbore of Gas Wells analogue experiment installation |
| CN104879094A (en) * | 2015-05-11 | 2015-09-02 | 中国石油天然气股份有限公司 | Downhole throttling gas well shaft simulation experiment apparatus |
| CN105242014A (en) * | 2015-10-22 | 2016-01-13 | 中国石油天然气股份有限公司 | Underground gas-liquid simulative testing system |
| CN106124705A (en) * | 2016-07-21 | 2016-11-16 | 中国地质大学（武汉） | A kind of biphase gas and liquid flow analog |
| CN106401580A (en) * | 2016-11-28 | 2017-02-15 | 中国石油大学(北京) | Multiphase flow experimental device for complex inner boundary multi-heat-source lifting shaft |
| CN106401580B (en) * | 2016-11-28 | 2023-07-18 | 中国石油大学(北京) | Multiphase flow experimental device for complex inner boundary multi-heat source lifting shaft |
| CN109580207A (en) * | 2018-12-28 | 2019-04-05 | 中国科学院武汉岩土力学研究所 | A kind of downhole packer method for testing performance and device |
| CN109765265A (en) * | 2019-01-24 | 2019-05-17 | 中国石油大学(华东) | Measure the device and method of deep water gas well annulus logging liquid thermal insulation property |
| CN110207749A (en) * | 2019-06-05 | 2019-09-06 | 中海石油(中国)有限公司 | Top well killing method kill-job imitative experimental appliance |
| CN110529100A (en) * | 2019-09-05 | 2019-12-03 | 西南石油大学 | High temperature and pressure pit shaft salt crust physical simulating device and its analogy method |
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| CN111764885A (en) * | 2020-07-19 | 2020-10-13 | 西南石油大学 | Visual gas well intermittent production simulation experiment device and method |
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