CN201963296U - Degree of depth continuous measurement of oil well producing fluid level and extraction liquid continuous metering device - Google Patents
Degree of depth continuous measurement of oil well producing fluid level and extraction liquid continuous metering device Download PDFInfo
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- CN201963296U CN201963296U CN2011200196004U CN201120019600U CN201963296U CN 201963296 U CN201963296 U CN 201963296U CN 2011200196004 U CN2011200196004 U CN 2011200196004U CN 201120019600 U CN201120019600 U CN 201120019600U CN 201963296 U CN201963296 U CN 201963296U
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Abstract
The utility model relates to an oil well producing fluid level degree of depth continuous measurement and extraction liquid continuous metering device. It is made up by pressure Detecting module, signal transmission module and ground processing supporting module. The Pressure detecting module contains three pressure units that are distributed in the oil jacket annular space; the Ground processing detecting module consists of the beam-pumping unit lower dead center trigger element, signal Transmit-Receive Unit and signal acquisition unit, data processing, storage, display element, oil well production information database server, network transmission unit, customer terminal and control unit constantly. It detects the module through detecting the internal pressure change of the oil jacket annular space, and handles the supporting module through ground and carrying out data acquisition, processing, confirms the producing fluid level degree of depth in the oil jacket annular space, oil well product liquid measure, oil reservoir providing liquid volume and extraction liquid and synthesizes density and the production of reflection oil, which reflects the parameter of technique and technology and so on , so as to realize that the oil well production is in the slave mode of optimization all the time.
Description
Technical field
The utility model belongs to continuous measurement of a kind of well fluid level degree of depth and the extraction liquid continuous metering device in the petroleum recovering industrial circle.
Technical background
In oil field development was produced, the well fluid level depth H was one and characterizes oil well production and technology status important technical parameter.Dynamic oil level H increase causes the submergence of down-hole extraction equipment (as oil well pump, submersible electric pump and subsurface progressive cavity etc.) to reduce on the one hand, suction pressure descends, portion gas in the liquid is separated out and is tied up its inner dischargeable capacity space, has reduced its degree of filling and volumetric efficiency; The ability of flow direction down-hole extraction equipment can weaken with flowing velocity and also can reduce on the other hand, has further reduced its degree of filling and volumetric efficiency.
The variation of well fluid level depth H and oilwell produced fluid amount, can directly or indirectly reflect the variation of oil reservoir fluid supply capacity, the technology status and the running status that can also reflect down-hole extraction equipment (as oil well pump, subsurface progressive cavity and submersible electric pump etc.) simultaneously provide decision-making foundation accurately and reliably for adjusting production well proration timely and effectively and optimizing oil well production technology, well maintenance operation etc.
Well fluid level depth H traditional measurement method mainly is to adopt supersonic reflection method at present, and there is the problem of following aspect in it.The one, can only be regularly or irregularly stop production and measure, can not the continuous measurement well fluid level degree of depth; The 2nd, be subjected to the influence of interference source in the oil sets annular space, measure error is big, even gives the measurement result that makes mistake; The 3rd, though combine the method for sampling chemical examination, can determine the comprehensive density of oil well produced liquid, moisture content etc., because the sampling period is long and number of samples is few, can not accurately react technical indicators such as extraction liquid moisture content, comprehensive density truly; The 4th, can not effectively measure the deep-well dynamic oil level.Ground three-phase separator measurement method is generally adopted in the oil well produced liquid metering, and there is the problem of following aspect in it.The one, be subjected to all multifactor influences such as content, pressure and temperature of natural gas in the oil well liquid, the oil well produced liquid error in dipping is bigger, even can not measure; The 2nd, because adopting, this kind measuring method manually reads and sampling by hand, artificial error in dipping is big, is difficult to accomplish that data acquisition is in time synchronously with accurately and reliably; The 3rd, this measuring method ground corollary equipment is many, engineering quantity is big, the big and one-time investment height of management difficulty; The 4th, can not carry out continuous metering.
Be subjected to the restriction of existing oil well measurement technology status and management factors, oil well measurement can not be accomplished timely and effective adjustment, lags behind the variation of oil reservoir fluid supply capacity and down-hole extraction Technical conditions of equipment.Continuous measurement of the well fluid level degree of depth and extraction liquid continuous metering device have been proposed in view of the foregoing.
The utility model content
The utility model is at the problems referred to above that existing well fluid level degree of depth continuous measurement and extraction liquid continuous metering technology exist, proposed a kind of efficiently, well fluid level degree of depth continuous measurement accurately and extraction liquid continuous metering device device.
Its technical scheme comprises: continuous measurement of the well fluid level degree of depth and extraction liquid continuous metering device are made up of pressure detecting module, signal transmission module, supporting processing module three parts in ground.Wherein: the pressure detecting module comprises 14, two a vertical 1# pressure sensing cell 16 and the 2# pressure sensing cells 18 that are distributed in the initial liquid level of oil sets annular space below respectively of 0# pressure sensing cell that place the oil sets annular space gas zone at least.Signal transmission module is optical cable or cable.The supporting processing module in ground comprises lower dead center time trigger unit 20 on the oil pumper, signal transmitting and receiving unit 19, data processing memory cell 27, control module 25, oil well production information database server 21, network transmission unit 24 and client terminal 22.
The pressure detecting module is optical fiber pressure detecting unit or electron pressure detecting unit in the such scheme.When adopting the optical fiber pressure detecting unit, 1# pressure sensing cell 16 places the oil pumping pump housing 4 lower edges; 2# pressure sensing cell 18 places oil well pump tail pipe screen casing to make up 17 lower edges.When adopting the electron pressure detecting unit, 1# pressure sensing cell 16,2# pressure sensing cell 18 place the position of certain depth under the initial liquid level respectively.The recommendation degree of depth is: 1# pressure sensing cell 16,2# pressure sensing cell 18 place the position of following 50 meters and the 100 meters degree of depth of initial liquid level respectively.
The utility model is compared with extraction liquid metering device with other well fluid levels measurements has following characteristics and advantage: 1, realize well fluid level degree of depth continuous measurement and extraction liquid continuous metering; 2, the miniaturization of pressure detecting module is integrated, has overcome the narrow and small restriction of oil sets annular space; 3, adopt the optical fiber pressure detection mode to solve the restriction of HTHP working environment in the pit shaft, measure more reliable and more stable; 4, the comprehensive density and the moisture content of continuous measurement oil well produced liquid, and judge the variation tendency of oil reservoir feed flow key component (You Heshui) with this; 5, amount of natural gas in the continuous measurement oil sets annular space E; 6, dynamically determine rod-pumped well pump efficiency and singel well system efficient; 7, the leakage flow of continuous measurement down-hole extraction equipment is judged its technology status and duty with this; 8, the fluid supply capacity of continuous measurement oil reservoir and variation tendency provide foundation for adjusting oil well production technological measure and production well proration timely and effectively; 9, according to dynamic oil level H, extraction liquid amasss flow, technical datas such as oil reservoir feed flow flow and down-hole extraction equipment leakage flow, and in conjunction with production well proration, with best submergence H0 as controlled parameter, by 25 pairs of oil production equipment drive motors 26 of control module of ground companion module 13 (as the oil pumper ground drive motors, submersible electric pump motor and subsurface progressive cavity motor etc.) realization closed loop or grading control, dynamically adjust its running frequency, the ability to work of regulating down-hole extraction equipment in real time makes it to adapt with the fluid supply capacity of oil reservoir, realizes that the oil well production operation is in optimized slave mode all the time; 10, many mouthfuls of oil wells with common or like attribute and oil well external transport pipeline are carried out networking, the running status of main manufacturing parameter of oil well and pipeline in the real-time monitoring network, and set up oil well production information dynamic monitoring phase-split network platform in the net, for providing significant data, the digitlization of production management oil field, intellectuality and networking support.
Description of drawings
A kind of Application Example structure chart when accompanying drawing 1 is the utility model employing optical fiber pressure detecting unit;
A kind of Application Example structure chart when accompanying drawing 2 is the utility model employing electron pressure detecting unit;
Accompanying drawing 3 is circuit part structured flowcharts.
Among the figure, the combination of 1-oil well casing; 2-oil well casing perforated interval; 3-oil well pump standing valve; The 4-pump housing of pumping; Travelling valve under the 5-oil well pump; The 6-oil pump plunger piston; The combination of 7-oil pipe; The 8-well fluid level; 9-oil sets annular space gas (natural gas) space E; The 10-production wellhead; The combination of 11-sucker rod; 12-optical cable or cable; The supporting processing module in 13-ground; 14-0# optical fiber (or electronics) pressure sensing cell; Travelling valve on the 15-oil well pump; 16-1# optical fiber (or electronics) pressure sensing cell; 17-oil well pump tail pipe and screen casing combination; 18-2# optical fiber (or electronics) pressure sensing cell; 19-signal transmitting and receiving unit; Lower dead center time trigger unit (also claiming travel switch) on the 20-oil pumper; 21-oil well production information database server (conventional computer server); 22 and 23-client's (wired or wireless) terminal; 24-network transmission unit; 25-control module (unit that contains frequency-variable controller); 26-oil production equipment drive motors (as oil pumper ground drive motors, submersible electric pump motor and subsurface progressive cavity motor etc.); The 27-data are handled memory cell (as ARK-7480 series is a kind of Intel Pentium 4Socket 478 instant built-in industrial computers, has 16 A/D converters and RS485 bus acquisition module etc.).Wherein the optical fiber pressure detecting unit can adopt the fiber-optic grating sensor of Shanghai grating information technology Co., Ltd production etc.The SI425 fiber Bragg grating (FBG) demodulator that the signal transmitting and receiving unit can adopt U.S. MICRON OPTICS IN company to produce; The model that SLD (SLED) light source/wideband light source SLED high stable wideband light source selects for use Shanghai vast space Fibre Optical Communication Technology company to produce is SLD-761-HP1-DBUT-SM-PD-1480, typical case's power output is greater than 4mW, and single-mode fiber is exported, peak wavelength 1480nm, the encapsulation of butterfly type comprises PD etc.
The H-dynamic oil level; The distance of H1-1# pressure sensing cell 16 and 2# pressure sensing cell 18; H2-1# pressure sensing cell 16 arrives the distance of production wellhead 10 or is the oil well pump pump setting depth; Fluid column space in the A-oil sets annular space; Annular space between B-oil pumping pump housing tail end 4 and the oil well pump tail pipe screen casing combination 17; Annular space between the C-oil pumping pump housing 4 and the oil pump plunger piston 6; The space that D-oil pump plunger piston 6 and oil pipe combination 7, sucker rod combination 11 and production wellhead 10 form; Gas (natural gas) space in the E-oil sets annular space.
The specific embodiment
The well-case perforating section 2 of oil reservoir liquid on sleeve pipe 1 is penetrated in the oil sets annular space A district, and dynamic oil level H will change thereupon; The observed pressure P of corresponding 0#14,1#16 and 2#18 pressure sensing cell
0#, P
1#And P
2#Also can change thereupon.
The well-case perforating section 2 of oil reservoir liquid on sleeve pipe 1 is penetrated in the oil sets annular space A district, and dynamic oil level H will change thereupon; The observed pressure P of corresponding 0#14,1#16 and 2#18 pressure sensing cell
0#, P
1#And P
2#Also can change thereupon.
Beam pumping unit abbreviation oil pumper with tradition and generally employing is that example describes below.A working cycles of oil pumper comprises two strokes up and down, and up stroke is meant that pumping unit horsehead is from the motion process of lower dead center to top dead centre; Down stroke is meant that pumping unit horsehead is from the motion process of top dead centre to lower dead center.In stroke up and down, oil reservoir continues feed flow in oil sets annular space A, so A district and B district have been full of liquid all the time.
The course of work of oil pumper up stroke: sucker rod combination 11 drives oil pump plunger pistons 6 in oil pipe combination 7 from bottom to top during rectilinear motion; Space C between the oil pump plunger piston 6 and the oil pumping pump housing 4 will increase, C district internal pressure has a declining tendency, and oil well pump standing valve 3 is held open state, and crude oil flows to the C district from the B district through standing valve 3, and producing fluid level 8 can have a declining tendency, i.e. P
0#, P
1#And P
2#Also reduce thereupon.Simultaneously,, guaranteed that the liquid in the D district is given rise to production wellhead 10, finished oil well discharge opeing process because oil well pump travelling valve 5 and 15 keeps closed condition under self gravitation and the head of liquid effect of upper end D district.
The course of work of oil pumper down stroke: sucker rod combination 11 drives oil pump plunger pistons 6 in oil pipe combination 7 from top to bottom during rectilinear motion; Space C between the oil pump plunger piston 6 and the oil pumping pump housing 4 will reduce, C district internal pressure has trend of rising, oil well pump standing valve 3 keeps the closed condition perfect condition under self gravitation and the internal pressure effect of C district, liquid can not flow to the C district through standing valve 3 from the B district, producing fluid level 8 has the trend of rising, i.e. P
0#, P
1#And P
2#Also increase thereupon.Simultaneously, because oil well pump travelling valve 5 and 15 is held open state under the C district effect that pressure constantly increases, the liquid in the C district flows to the D district through sucker rod travelling valve 5 and 15, has finished the fluid exchange process in oil well pump and D district.
No matter be to adopt optical fiber pressure detection mode or electron pressure detection mode, lower dead center time trigger unit 20 on the oil pumper, the control module 25 of pumping-unit motor 26, data are handled and memory cell 27, oil well production information database server 21, network transmission unit 24 all is identical with terminal use 22,23 etc.The two difference is the pressure detecting mode, and signal takes place different with collecting unit.
When adopting the optical fiber pressure detection mode, lower dead center time trigger unit 20 feeds back to data processing and 27 1 switching value signals of telecommunication of memory cell on the oil pumper, and it has reflected that oil pumper runs to the moment of top dead centre and lower dead center.Data are handled and memory cell 27 is a time reference point with these two moment, optical signal generating unit in the control signal Transmit-Receive Unit 19 modulates satisfactory light beam, by Optical Fiber Transmission to 0#14,1#16 and 2#18 optical fiber pressure detecting unit, the beam Propagation of pressure sensing cell feedback is converted into effective data signal behind the optical modulator unit in the signal transmitting and receiving unit 19, and be saved in data processing and the memory cell 27, these data signals have characterized each pressure sensing cell pressure value P corresponding with the time. temporarily
0#, P
1#And P
2#
When adopting the electron pressure detection mode, data are handled and memory cell 27 is a time reference point with oil pumper top dead centre and lower dead center equally constantly, the current supply circuit of control 0#14,1#16 and 2#18 electron pressure detecting unit, after being transferred to signal transmitting and receiving unit 19, the analog electrical signal of pressure sensing cell feedback is converted into effective data signal, deposit temporarily be saved in that data are handled and memory cell 27 in, these data signals have characterized each pressure sensing cell pressure value P corresponding with the time equally
0#, P
1#And P
2#
Pumping-unit motor control module 25 feeds back to parameters such as the input power of pumping-unit motor 26, working voltage and electric current, running frequency and rotating speeds in data processing and the memory cell 27 and interim the preservation simultaneously.Data are handled and 27 pairs of above-mentioned data of memory cell are handled, and forming actual parameter can show and longer-term storage in this locality; Or be saved in the oil well production information database server 21 through network transmission, terminal use 22,23 carries out data access or monitoring in real time by network transmission unit 24.According to production requirement and in conjunction with above-mentioned actual parameter, realize closed loop or grading control simultaneously, dynamically adjust its running frequency by 25 pairs of pumping-unit motors of control module 26.
According to the force value and the power input to machine that detect each pressure sensing cell, after processing of process data and memory cell 27 are handled, finally draw following continually varying actual parameter in conjunction with mathematical analysis model (by setting up software for mathematical computing): dynamic oil level, pressure sensing cell observed pressure value, the comprehensive density of extraction liquid, extraction liquid amasss moisture content, extraction liquid amasss flow, extraction liquid mass flow, oil reservoir feed flow flow, the oil well pump leakage flow, natural gas volume amount in E district under the standard state, down-hole extraction equipment submergence, the rod-pumped well pump efficiency, parameters such as singel well system efficient.
According to parameters such as dynamic oil level, the long-pending moisture content of extraction liquid, oil reservoir feed flow flows, can in time grasp the fluid supply capacity variation tendency of oil reservoir, the variation of oil reservoir feed flow key component, so that adjust the injection-production technology measure timely and effectively, as adjust block water injection rate or water injection pressure etc., recover the oil reservoir fluid supply capacity.
According to dynamic oil level, the long-pending flow of extraction liquid, oil reservoir feed flow flow, and, can dynamically grasp the technology status and the duty of down-hole extraction equipment in conjunction with parameters such as oil well pump leakage flows.
According to dynamic oil level, extraction liquid amasss flow, technical datas such as oil reservoir feed flow flow and oil well pump leakage flow, and in conjunction with production well proration, with best submergence as controlled parameter, by the control module of ground companion module to oil production equipment drive motors such as oil pumper ground drive motors, submersible electric pump motor and subsurface progressive cavity motor etc. are realized closed loop or grading control, dynamically adjust its running frequency, the ability to work of adjusting down-hole extraction equipment in real time makes it to adapt with the fluid supply capacity of oil reservoir, realizes that the oil well production operation is in optimized slave mode all the time.
Claims (3)
1. continuous measurement of the well fluid level degree of depth and extraction liquid continuous metering device, it is characterized in that forming by pressure detecting module, signal transmission module, the supporting processing module in ground (13), wherein: the pressure detecting module comprises a 0# pressure sensing cell (14) that places the oil sets annular space gas zone at least, two 1# pressure sensing cell (16) and 2# pressure sensing cells (18) that vertically are distributed in the initial liquid level of oil sets annular space below respectively; Signal transmission module is optical cable or cable; The supporting processing module in ground (13) comprises lower dead center time trigger unit (20) on the oil pumper, signal transmitting and receiving unit (19), data processing memory cell (27), control module (25), oil well production information database server (21), network transmission unit (24) and client terminal (22).
2. the well fluid level degree of depth according to claim 1 continuous measurement and extraction liquid continuous metering device, it is characterized in that the pressure detecting module is optical fiber pressure detecting unit or electron pressure detecting unit, when adopting the optical fiber pressure detecting unit, 1# pressure sensing cell (16) places the oil pumping pump housing (4) lower edge; 2# pressure sensing cell (18) places oil well pump tail pipe screen casing combination (17) lower edge; When adopting the electron pressure detecting unit, 1# pressure sensing cell (16), 2# pressure sensing cell (18) place the position of certain depth under the initial liquid level respectively.
3. the well fluid level degree of depth according to claim 2 continuous measurement and extraction liquid continuous metering device is characterized in that 1# pressure sensing cell (16), 2# pressure sensing cell (18) place the position of following 50 meters and the 100 meters degree of depth of initial liquid level respectively.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102168551A (en) * | 2011-01-19 | 2011-08-31 | 杨平 | Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid |
| CN103835701A (en) * | 2012-11-27 | 2014-06-04 | 山东天工石油装备有限公司 | Oil well automatic alarm management system |
| CN106401570A (en) * | 2015-07-30 | 2017-02-15 | 中国石油化工股份有限公司 | Determination method of producing water for shale gas well, determination method of accumulated liquid and liquid drainage method |
| CN108345757A (en) * | 2018-03-09 | 2018-07-31 | 青岛新胜石油机械有限公司 | Submergence computational methods, oil production method and oil extraction system |
| CN109505589A (en) * | 2018-11-28 | 2019-03-22 | 中国石油天然气股份有限公司 | A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method and tubing string |
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2011
- 2011-01-19 CN CN2011200196004U patent/CN201963296U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102168551A (en) * | 2011-01-19 | 2011-08-31 | 杨平 | Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid |
| CN102168551B (en) * | 2011-01-19 | 2014-04-16 | 杨平 | Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid |
| CN103835701A (en) * | 2012-11-27 | 2014-06-04 | 山东天工石油装备有限公司 | Oil well automatic alarm management system |
| CN106401570A (en) * | 2015-07-30 | 2017-02-15 | 中国石油化工股份有限公司 | Determination method of producing water for shale gas well, determination method of accumulated liquid and liquid drainage method |
| CN106401570B (en) * | 2015-07-30 | 2019-05-07 | 中国石油化工股份有限公司 | Determination method, the determination method of hydrops and the fluid-discharge method of shale gas well production water |
| CN108345757A (en) * | 2018-03-09 | 2018-07-31 | 青岛新胜石油机械有限公司 | Submergence computational methods, oil production method and oil extraction system |
| CN108345757B (en) * | 2018-03-09 | 2021-08-13 | 青岛新胜石油机械有限公司 | Sinking degree calculation method, oil extraction method and oil extraction system |
| CN109505589A (en) * | 2018-11-28 | 2019-03-22 | 中国石油天然气股份有限公司 | A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method and tubing string |
| CN109505589B (en) * | 2018-11-28 | 2023-09-26 | 中国石油天然气股份有限公司 | Oil well hot washing paraffin removal shaft temperature field distribution testing method and pipe column |
| CN114165219A (en) * | 2020-09-10 | 2022-03-11 | 中国石油天然气股份有限公司 | Method and device for determining working fluid level depth of oil well and storage medium |
| CN114165219B (en) * | 2020-09-10 | 2023-10-31 | 中国石油天然气股份有限公司 | Method and device for determining working fluid level depth of oil well and storage medium |
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Granted publication date: 20110907 Termination date: 20140119 |