CN101250987A - Method for testing and dislodging oil well intelligent delamination - Google Patents
Method for testing and dislodging oil well intelligent delamination Download PDFInfo
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- CN101250987A CN101250987A CNA2008100471606A CN200810047160A CN101250987A CN 101250987 A CN101250987 A CN 101250987A CN A2008100471606 A CNA2008100471606 A CN A2008100471606A CN 200810047160 A CN200810047160 A CN 200810047160A CN 101250987 A CN101250987 A CN 101250987A
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Abstract
The invention discloses a method of testing and exploiting an oil well intelligently and hierarchically, mainly comprising a releasing joint, a safety joint, a water shutoff packer and an intelligent switch which are connected via a tubing nipple from top to bottom. The method not only can finish the process of water finding and water plugging fitting one-trip strings, but also can realize the action of an underground intelligent switch by sending commands through ground remote control to finish closing and opening of a horizon. The intelligent switch is highly automated, low in construction cost, without a trip or string operation, has the advantages of being simple to operate, working reliably and high in success rate.
Description
Affiliated technical field
The present invention relates to a kind of technology that oil well is looked for water blockoff and test, method of especially a kind of oil well intelligent zonal testing and exploitation of being used in the oilfield development process.Suitable one-trip string is finished layering water detection, water blockoff manufacturing process, and realizes the down-hole switch action by the ground remote control instruction, finishes the opening and closing to layer position.Intelligent switch device automaticity height need not to remove instrument or carries out the tubing string operation, and construction cost is low, have simple to operate, reliable operation, the advantage that success rate is high.
Background technology
Along with oil field development enter in high water-cut stage, interlayer contradiction becomes increasingly conspicuous, after a large amount of underground water was disabled extraction, subsequent treatment, re-injection had consumed great amount of cost again.How to find out and the high aquifer of shutoff, the low aquifer of exploitation effectively reduces cost for oil production, is a technical barrier that needs to be resolved hurrily that faces the oil field development midium or long term.
Have producing profile testing water detection technology, packer water detection-water-plugging technique, underground hydraulic pressure switch to transfer layer to look for water-plugging technique, down-hole motor switch to transfer layer to look for four technology of water-plugging technique to address this problem at present, but all there is disadvantage in various degree in these several technology.
For addressing the above problem, the known patent No. is that the snubbing serving sliding sleeve switch device of CN02289758.5 mainly is made of top connection, adapter sleeve, bracing piece, displacement cover 5, sliding sleeve, locating detent connection, need carry out the switch motion that the tubing string operation could realize derailing switch, finish opening and closing to layer position, therefore, construction cost and security risk increase, and The field is restricted.
Summary of the invention
, complicated operation many, the deficiency that cost is high for the operation of looking for water-plugging technology to exist that overcomes present field by using, the invention provides the method for a kind of oil well intelligent zonal testing and exploitation, this technology only need be lowered to one-trip string, need not the ground intervening surface and just can finish the water detection process automatically, need not to remove instrument and just can finish water blockoff and transfer layer process, and can repeatedly transfer layer repeatedly at ground remote control.Effectively solve water detection, the water blockoff problem of high-water-cut oil-producing well, thus realize economical, develop oil fields efficiently.
The technical solution adopted for the present invention to solve the technical problems is: back-off sub, safety joint, Packer for blocking water, intelligent switch device constitute by the tubing nipple connection from top to bottom.Thereby realize layering water detecting and plugging pipe column, intelligent switch device structure, the combination of laminated distributor under well measuring technology three parts.Intelligent switch layering water detecting and plugging pipe column adopts in the mode lower going-into-well of giving up, with packer with each zonal isolation of down-hole, a cover intelligent switch device is installed in each corresponding target zone position on the tubing string, intelligent switch device on the tubing string is by the distant empty instruction ripple signal that sends in ground, activation control circuit, make intelligent switch begin to open or close water detection and water blockoff that the shutoff switch is realized oil well by the program work of setting; Hierarchical testing technology can obtain the pressure recovery-drop of pressure curve of oil reservoir.According to oil well production extraction layer position what, can realize the multistage connection of Packer for blocking water, intelligent switch device, thereby the multilayer that can realize production extraction layer is looked for water blockoff and test; The intelligent switch device is designed to an instrument pipe nipple, be connected with oil pipe up and down, body with its on design have in the housing that the bridge entire body of a layer position oil recovery passage, the logical oil recovery passage of levels bit string is connected, order is installed battery, sensor, microprocessor, driving mechanism, connecting rod, shutoff switch, sealing ring, one way valve, the connection of micro pressure tester and is formed.Bridge entire body design has a layer position oil recovery passage and a levels bit string circulation passage, and one way valve has also been designed in inside, and liquid that can not enters oil reservoir in the time of can guaranteeing that ground is suppressed, and can not damage oil reservoir.Connecting rod is connected with driving mechanism with the shutoff switch respectively, and being moved by the driving mechanism drivening rod opens and closes the shutoff switch.The shutoff switch is sealed by sealing ring, and after the shutoff switch opens, liquid sucks in the oil pipe through one way valve and discharge orifice.
The method of intelligence zonal testing and exploitation is: 1, design tubing string and go into the well: according to hole condition parameter designing intelligent switch layering water detecting and plugging pipe column, utilize Packer for blocking water (supposing that oil well is three layers) that each oil reservoir card is opened, a cover intelligent switch device is installed in each oil reservoir position is adopted in the mode lower going-into-well of giving up.2, set and give up and go into operation: beat hydraulic pressure and make packer setting, pitching is to back-off sub again, and pressurization realizes that tubing string gives up.Trip out and be lowered to pump behind the operating tool string and take out flow string, oil well drops into ordinary production.The intelligent switch device of each layer position, down-hole receives after the remote control of sending on ground sets pressure signal, promptly starts work, and the timetable operation that follow procedure is set opens or closes oil reservoir at official hour.3, water detection technology: in stage of finding, during the oil well ordinary production, have only an intelligent switch device to open in the same time, individual layer production just, each layer is opened independent production several days in turn, the ground staff chemically examines the fluid properties of determining each layer by metering, obtains flow, the moisture content data of this layer.4, test process: the pressure tester connector is left in intelligent switch device bottom, can connect as requested to be used for the zonal pressure test.This instrument is the micro pressure tester, and its pressure sensing hole is communicated with producing zone respectively.When the intelligent switch device was in closed condition, the pressure tester of each layer position can be tested the pressure build-up curve that obtains the stratum.When the intelligent switch device was in open mode and produces, the pressure tester of each layer position can be tested the drop of pressure curve that obtains the stratum.5, water-plugging technology: after the production fluid state of each layer was determined, floor synthetic was determined best recovery scheme after analyzing, and promptly determined and close which layer, opens which layer.The downhole intelligent derailing switch enters the ground remote control instruction ripple code signal state of waiting in this stage, send instruction ripple code signal at ground remote control, after sensor in the downhole intelligent derailing switch receives this signal, open or close corresponding switch by the specified coding signal, thereby by predetermined recovery scheme ordinary production.6, transfer layer once more: after water-blocking operation was finished, oil well entered the ordinary production cycle.The downhole intelligent derailing switch entered and waited for that ground remote control makes ripple code signal state this moment.When needs were transferred layer once more, random time sent instruction ripple code signal at ground remote control, and the intelligent switch device produces action according to the code signal that receives, and changes to new state from original state.Under the enough situation of the energy content of battery, the repeatedly repetitive operation of this process.
The present invention realizes steady oily precipitation, energy-saving and cost-reducing for science, reduces cost for oil production, and the mining level that improves the oil field will play good impetus.
The invention has the beneficial effects as follows that the automaticity height only need be lowered to one-trip string, need not the ground intervening surface and just can finish the water detection process automatically, need not to remove instrument and just can finish water blockoff and transfer layer process, and can repeatedly transfer layer repeatedly at ground remote control.Effectively solve water detection, the water blockoff problem of high-water-cut oil-producing well, thus realize economical, develop oil fields efficiently.Need not to remove instrument or carry out the tubing string operation, construction cost is low, have simple to operate, reliable operation, the advantage that success rate is high.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a concrete structure schematic diagram of the present invention.
Fig. 2 is an intelligent switch implement body structural representation.
Among the figure: 1, sleeve pipe, 2, back-off sub, 3, safety joint, 4, Packer for blocking water 1,5, intelligent switch device 1,6, Packer for blocking water 2,7, intelligent switch device 2,8, Packer for blocking water 3,9, intelligence intelligent switch device 3,10, Packer for blocking water 4,11, plug, 12, the bridge entire body, 13, the micro pressure tester, 14, one way valve, 15, sealing ring, 16, the shutoff switch, 17, connecting rod, 18, driving mechanism, 19, microprocessor, 20, battery, 21, sensor, 22, layer position oil recovery passage, 23, the levels bit string is led to oil recovery passage, 24, discharge orifice, 25, producing zone 1,26, producing zone 2,27, producing zone 3,28, body.
The specific embodiment
Referring to Fig. 1, Fig. 2, design be producing zone 1 (25), producing zone 2 (26), 3 (27) three layers of reservoir exploitation of producing zone the time specific embodiment.Back-off sub (2), safety joint (3), Packer for blocking water 1 (4), intelligent switch device 1 (5), Packer for blocking water 2 (6), intelligent switch device 2 (7), Packer for blocking water 3 (8), intelligent switch device 3 (9), Packer for blocking water 4 (10) constitute by the tubing nipple connection from top to bottom.In conjunction with the needs of manufacturing process, the end of Packer for blocking water 4 (10) is installed plug (11), according to oil well production extraction layer position what, can realize the multistage connection of Packer for blocking water, intelligent switch device, thereby can realize the multi-layer testing of production extraction layer; Intelligence intelligent switch device is designed to an instrument pipe nipple, be connected with oil pipe up and down, body (28) with its on design have in the housing that the bridge entire body (12) of a layer position oil recovery passage (22), the logical oil recovery passage (23) of levels bit string is connected, order is installed battery (20), sensor (21), microprocessor (19), driving mechanism (18), connecting rod (17), shutoff switch (16), sealing ring (15), one way valve (14), micro pressure tester (13) connection and is formed.Bridge entire body (12) design has layer position oil recovery passage (22) and levels bit string circulation passage (23), one way valve (14) has also been designed in inside, liquid sucks in the oil pipe through one way valve 14 and discharge orifice (24), and liquid that can not enters oil reservoir in the time of can guaranteeing that ground is suppressed, and can not damage oil reservoir.Connecting rod (17) is connected with driving mechanism with the shutoff switch respectively, and being moved by the driving mechanism drivening rod opens and closes the shutoff switch.Shutoff switch (16) is by sealing ring sealing (15).During use, layering water detecting and plugging pipe column of the present invention adopts whole (or giving up) mode to be lowered in sleeve pipe (1) oil well, realize the switch motion of downhole intelligent derailing switch flexibly by the mode of ground transmission telecommand, finish opening and closing to layer position, thereby the realization one-trip string is finished layering water detection, water blockoff and production, test process, the technology of the present invention automaticity height, need not to remove instrument or carry out the tubing string operation, construction cost is low, have simple to operate, reliable operation, the advantage that success rate is high.
The method of intelligence zonal testing and exploitation is: 1, design tubing string and go into the well: according to hole condition parameter designing intelligent switch layering water detecting and plugging pipe column, utilize Packer for blocking water (supposing that oil well is three layers) that each oil reservoir card is opened, a cover intelligent switch device is installed in each oil reservoir position is adopted in the mode lower going-into-well of giving up.2, set and give up and go into operation: beat hydraulic pressure and make packer setting, pitching is to back-off sub (2) again, and pressurization realizes that tubing string gives up.Trip out and be lowered to pump behind the operating tool string and take out flow string, oil well drops into ordinary production.The intelligent switch device of each layer position, down-hole receives after ground remote control sets pressure signal, promptly starts work, and the timetable operation that follow procedure is set opens or closes oil reservoir at official hour.3, water detection technology: in stage of finding, during the oil well ordinary production, have only an intelligent switch device to open in the same time, individual layer production just, each layer is opened independent production several days in turn, the ground staff chemically examines the fluid properties of determining each layer by metering, obtains flow, the moisture content data of this layer.4, test process: the pressure tester connector is left in intelligent switch device bottom, can connect as requested to be used for the zonal pressure test.This instrument is micro pressure tester (13), and its pressure sensing hole is communicated with producing zone respectively.When the intelligent switch device was in closed condition, the pressure tester of each layer position can be tested the pressure build-up curve that obtains the stratum.When the intelligent switch device was in open mode and produces, the pressure tester of each layer position can be tested the drop of pressure curve that obtains the stratum.5, water-plugging technology: after the production fluid state of each layer was determined, floor synthetic was determined best recovery scheme after analyzing, and promptly determined and close which layer, opens which layer.The downhole intelligent derailing switch enters the ground remote control instruction ripple code signal state of waiting in this stage, send telecommand ripple code signal on ground, after sensor (21) in the downhole intelligent derailing switch receives this signal, open or close corresponding switch by the specified coding signal, thereby by predetermined recovery scheme ordinary production.6, transfer layer once more: after water-blocking operation was finished, oil well entered the ordinary production cycle.The downhole intelligent derailing switch entered and waited for that ground remote control makes ripple code signal state this moment.When needs were transferred layer once more, random time sent telecommand ripple code signal on ground, and the intelligent switch device produces action according to the code signal that receives, and changes to new state from original state.Under the enough situation of battery (20) energy, the repeatedly repetitive operation of this process.
The present invention realizes steady oily precipitation, energy-saving and cost-reducing for science, reduces cost for oil production, and the mining level that improves the oil field will play good impetus.
Claims (3)
1, the method for a kind of oil well intelligent zonal testing and exploitation is characterized in that: back-off sub, safety joint, Packer for blocking water, intelligent switch device constitute by the tubing nipple connection from top to bottom.
2, the method for a kind of oil well intelligent zonal testing and exploitation, (1) designs the intelligent switch layering water detecting and plugging pipe column of going into the well; (2) be lowered to oil well after, beat hydraulic pressure and make packer setting, pitching is to back-off sub again, pressurization realizes that tubing string gives up.The intelligent switch device of each layer position, down-hole promptly starts work after receiving and setting pressure signal, and the timetable operation that follow procedure is set opens or closes oil reservoir at official hour; (3) water detection technology: have only an intelligent switch device to open in the same time, chemically examine the fluid properties of determining each layer, obtain flow, the moisture content data of this layer by metering.(4) test process: intelligent switch device bottom connects the micro pressure tester, and its pressure sensing hole is communicated with producing zone respectively.When the intelligent switch device cut out, test obtained the pressure build-up curve on stratum, and during intelligent switch device open mode, test obtains the drop of pressure curve on stratum; (5) water-plugging technology: ground sends telecommand ripple code signal, after the sensor in the downhole intelligent derailing switch receives this signal, opens or closes corresponding switch by the specified coding signal, thereby by predetermined recovery scheme ordinary production; (6) transfer layer once more: random time sends telecommand ripple code signal on ground, and the intelligent switch device produces action according to the code signal that receives, and changes to new state from original state.
3, the method for a kind of oil well intelligent zonal testing according to claim 1 and exploitation, it is characterized in that: the intelligent switch device by body with its on design have in the housing that the bridge entire body of a layer position oil recovery passage, the logical oil recovery passage of levels bit string is connected, order is installed battery, sensor, microprocessor, driving mechanism, connecting rod, shutoff switch, sealing ring, one way valve, the connection of micro pressure tester and is formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100471606A CN101250987A (en) | 2008-03-27 | 2008-03-27 | Method for testing and dislodging oil well intelligent delamination |
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| CNA2008100471606A CN101250987A (en) | 2008-03-27 | 2008-03-27 | Method for testing and dislodging oil well intelligent delamination |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102747967A (en) * | 2012-07-10 | 2012-10-24 | 中国石油天然气股份有限公司 | Multi-stage segmented release water exploration pipe column and method for casing well completion multi-stage fractured horizontal well |
| CN102926722A (en) * | 2012-10-29 | 2013-02-13 | 中国石油化工股份有限公司 | Layering oil production system |
| CN101498211B (en) * | 2009-02-26 | 2013-05-15 | 中国石油化工股份有限公司 | Method for water distribution by sound wave remote control and the matched intelligent water distributor |
| CN103382835A (en) * | 2013-07-25 | 2013-11-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Water exploration and plugging technology by adopting intelligent switches |
| CN103775021A (en) * | 2014-01-09 | 2014-05-07 | 中国石油天然气股份有限公司 | Water plugging pipe column suitable for small partitioning layer plug bottom water well and water plugging method |
| CN104018824A (en) * | 2014-05-23 | 2014-09-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Zonation testing method used for downhole intelligent well shutdown |
| CN104047581A (en) * | 2014-05-28 | 2014-09-17 | 苏州市职业大学 | Automatic oil extraction divider system based on sonar |
| CN104100254A (en) * | 2013-04-03 | 2014-10-15 | 中国石油天然气股份有限公司 | Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof |
| CN104278988A (en) * | 2013-07-05 | 2015-01-14 | 天津大港油田钻采技术开发公司 | Sidetracking well three-layer water finding and blocking and production operation integrated tubular column and operating method thereof |
| CN104533356A (en) * | 2014-12-31 | 2015-04-22 | 中国石油天然气股份有限公司 | Two-layer automatic control type layered oil extraction method and layered oil extraction method |
| CN105114061A (en) * | 2015-08-31 | 2015-12-02 | 中国石油天然气股份有限公司 | String and method for quickly surveying water in horizontal well by multi-parameter combined test without moving string |
| CN105422085A (en) * | 2015-12-29 | 2016-03-23 | 中国石油天然气股份有限公司 | Sliding sleeve switch type water exploration tube column for horizontal wells |
| CN105672960A (en) * | 2016-03-25 | 2016-06-15 | 贵州天石能源科技有限公司 | Direct-reading underground layered oil production method and direct-reading underground layered oil production device |
| CN106121598A (en) * | 2016-06-30 | 2016-11-16 | 中国石油化工股份有限公司 | Oil well delamination production fluid measure and control test device |
| CN110965967A (en) * | 2019-12-16 | 2020-04-07 | 中国石油集团渤海钻探工程有限公司 | Downhole fluid automatic control and water blocking integrated layered oil production pipe column and oil production method |
| CN111764884A (en) * | 2020-05-08 | 2020-10-13 | 何伟民 | Oil well layer section testing and plugging method and adjusting and controlling device between oil layers |
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2008
- 2008-03-27 CN CNA2008100471606A patent/CN101250987A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498211B (en) * | 2009-02-26 | 2013-05-15 | 中国石油化工股份有限公司 | Method for water distribution by sound wave remote control and the matched intelligent water distributor |
| CN102747967A (en) * | 2012-07-10 | 2012-10-24 | 中国石油天然气股份有限公司 | Multi-stage segmented release water exploration pipe column and method for casing well completion multi-stage fractured horizontal well |
| CN102926722B (en) * | 2012-10-29 | 2015-06-17 | 中国石油化工股份有限公司 | Layering oil production system |
| CN102926722A (en) * | 2012-10-29 | 2013-02-13 | 中国石油化工股份有限公司 | Layering oil production system |
| CN104100254A (en) * | 2013-04-03 | 2014-10-15 | 中国石油天然气股份有限公司 | Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof |
| CN104278988A (en) * | 2013-07-05 | 2015-01-14 | 天津大港油田钻采技术开发公司 | Sidetracking well three-layer water finding and blocking and production operation integrated tubular column and operating method thereof |
| CN103382835A (en) * | 2013-07-25 | 2013-11-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Water exploration and plugging technology by adopting intelligent switches |
| CN103382835B (en) * | 2013-07-25 | 2016-05-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Intelligent switch is looked for, water-plugging technique |
| CN103775021A (en) * | 2014-01-09 | 2014-05-07 | 中国石油天然气股份有限公司 | Water plugging pipe column suitable for small partitioning layer plug bottom water well and water plugging method |
| CN104018824A (en) * | 2014-05-23 | 2014-09-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Zonation testing method used for downhole intelligent well shutdown |
| CN104047581A (en) * | 2014-05-28 | 2014-09-17 | 苏州市职业大学 | Automatic oil extraction divider system based on sonar |
| CN104533356A (en) * | 2014-12-31 | 2015-04-22 | 中国石油天然气股份有限公司 | Two-layer automatic control type layered oil extraction method and layered oil extraction method |
| CN104533356B (en) * | 2014-12-31 | 2017-07-07 | 中国石油天然气股份有限公司 | The method and oil production by layer method of a kind of two-layer automatic control oil production by layer |
| CN105114061A (en) * | 2015-08-31 | 2015-12-02 | 中国石油天然气股份有限公司 | String and method for quickly surveying water in horizontal well by multi-parameter combined test without moving string |
| CN105422085A (en) * | 2015-12-29 | 2016-03-23 | 中国石油天然气股份有限公司 | Sliding sleeve switch type water exploration tube column for horizontal wells |
| CN105672960A (en) * | 2016-03-25 | 2016-06-15 | 贵州天石能源科技有限公司 | Direct-reading underground layered oil production method and direct-reading underground layered oil production device |
| CN105672960B (en) * | 2016-03-25 | 2017-12-26 | 贵州天石能源科技有限公司 | A kind of direct-reading type down-hole oil production by layer method and its device |
| CN106121598A (en) * | 2016-06-30 | 2016-11-16 | 中国石油化工股份有限公司 | Oil well delamination production fluid measure and control test device |
| CN110965967A (en) * | 2019-12-16 | 2020-04-07 | 中国石油集团渤海钻探工程有限公司 | Downhole fluid automatic control and water blocking integrated layered oil production pipe column and oil production method |
| CN111764884A (en) * | 2020-05-08 | 2020-10-13 | 何伟民 | Oil well layer section testing and plugging method and adjusting and controlling device between oil layers |
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Application publication date: 20080827 |