CN105422058A - Release type current-adjustable layering mining method for horizontal well - Google Patents
Release type current-adjustable layering mining method for horizontal well Download PDFInfo
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- CN105422058A CN105422058A CN201510993809.3A CN201510993809A CN105422058A CN 105422058 A CN105422058 A CN 105422058A CN 201510993809 A CN201510993809 A CN 201510993809A CN 105422058 A CN105422058 A CN 105422058A
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- signal cable
- overcoat
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- cable
- controller
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Abstract
The invention discloses a release type current-adjustable layering mining method for a horizontal well. The method comprises the following steps of firstly dividing a horizontal layer section of a pipe column below a release sub into at least two layer sections through a layering technology, and respectively arranging current-adjustable production controllers at the layer sections of the layering pipe column; secondly mounting the release sub, the pipe column below the release sub and a second signal cable, and mounting the pipe column above the release sub and a first signal cable, so that a data butting female connector and a data butting male connector are butted, and communication between the production controllers and a ground controller are realized; and finally enabling the production controllers to feed back liquid yield, the pressure and the temperature of each layer to the ground controller through the signal cables, and adjusting the opening magnitude of the production controllers through the ground controller. Through the adoption of the method disclosed by the invention, the controllable production of the liquid yield of layered sections and each layer section of the horizontal well can be realized, so that the oil recovery speed of each layer is reasonable, the oil recover speed is monitored in a real-time manner and can be adjusted and controlled, and the operating time is shortened.
Description
Technical field
The present invention relates to oil field layered exploitation method, particularly a kind of horizontal well releasing type adjustable fluid flow separate zone production method.
Background technology
Along with the demand of oil field fine development, oil well needs to implement separate zone production, by packer by each layer separately, the interval not needing to produce is closed feed pathway.For the oil well of High water cut, generally turned down by oil nozzle and carry out throttling, the situation that existing electric pump well runs into High water cut is generally then the measure of taking high aquifer formation to close, although the method controls moisture, also have impact on oil well output.Patent No. CN103541699A discloses the adjustable flow string of a kind of flow, carries out flow-control by pre-set springs pretightning force, and this method is accurate not to the control of flow, also cannot obtain the parameter such as pressure, flow of each layer in real time.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of and realize point interval of horizontal well, the horizontal well releasing type adjustable fluid flow separate zone production method of the controlled production of each interval Liquid output.
In order to solve the problems of the technologies described above, the invention provides a kind of horizontal well releasing type adjustable fluid flow separate zone production method, comprising the steps:
(1) by hierarchical process, back-off sub is separated at least two intervals with the horizontal interval of lower tubular column, on separate-layer string, each interval all arranges the Production Controller of adjustable fluid flow;
(2) assembling back-off sub and with lower tubular column and under enter in oil well casing, and with entering secondary signal cable at present;
(3) the above tubing string of assembling back-off sub and under enter in oil well casing, and with entering the first signal cable at present;
(4) the data docking female joint of the above tubing string of back-off sub is docked male joint with back-off sub with the data of lower tubular column and is docked, and is realized the communication of Production Controller and ground controller by the first signal cable and secondary signal cable;
(5) after Production Controller and ground controller communication, Production Controller by signal cable by each layer Liquid output, pressure, temperature feedback to ground controller, regulated the aperture size of Production Controller by ground controller.
In described step (1), described back-off sub comprises data docking male joint with lower tubular column, described data docking male joint lower end is connected with the top being stuck in internal surface of sleeve pipe and crosses cable packer, described top is crossed cable packer lower end and is connected with lower oil pipe, what described lower oil pipe bottom is positioned at layer separating packer place is provided with that secondary signal cable and data dock that male joint is connected crosses cable isolation packer, and described cable isolation packer two ends of crossing are connected with screen casing and are connected with the centralizer be arranged between lower oil pipe and screen casing; Often be provided with Production Controller between adjacent two mistake cable isolation packers in described lower oil pipe, it is stifled that described lower oil pipe end is provided with circle.
Described Production Controller comprises top connection, and described top connection upper end is connected with the first signal cable head; Described top connection lower end is connected with overcoat, is provided with the first main channel running through overcoat and first floor passage in described upper overcoat, and described first floor passage is provided with flow transmitter; In described upper overcoat lower end, be positioned at first floor passage and be outside equipped with the circuit board component be connected with flow transmitter; Described upper overcoat lower end is connected with transition joint, described transition joint upper end bosom is provided with the first screwed hole be connected with first floor passage, and inside, described transition joint upper end is provided with the fluid hole be connected with the first main channel, the second screwed hole be connected with circuit board component and the 3rd screwed hole; Described 3rd screwed hole be connected be connected with described circuit board component test envelope pipe nipple, described envelope pipe nipple of testing comprises pipe external pressure sensor, overpressure sensor, temperature pick up, the pipe external pressure pressure guide hole be connected with oil jacket annular space and the overpressure pressure guide hole be connected with second layer passage, described second layer passage is connected with first floor passage; Be provided with the passageway bridge that the signal cable running through transition joint passes through hole and is connected with described fluid hole in described transition joint, described transition joint lower end side is provided with a layer inlet; Described transition joint lower end is connected with lower overcoat, is provided with and runs through lower overcoat and the second main channel be connected with passageway bridge in described lower overcoat; Be provided with electric machine assembly in described lower overcoat lower end, described electric machine assembly upper end is connected with leading screw, and described its circumferencial direction of leading screw lower end edge is evenly provided with four magnet steel, is positioned at its circumferential plane and is provided with a Hall element outside described magnet steel; Described leading screw upper end is connected with to be passed through the 4th screwed hole to be arranged on transition joint inner and form the oil nozzle of annular space with transition joint, described oil nozzle comprises piston rod, be set in the piston of piston rod part, with enclosed the valve pocket be connected with described piston seal by O, described valve pocket outer wall and transition joint inwall form second layer passage, described valve pocket are positioned at second layer channel entrance end and are provided with perforate; Described lower overcoat lower end is connected with lower contact, is provided with the main inlet be connected with the second main channel in described lower contact, and described lower contact lower end is connected with secondary signal cable head.
Described circuit board component comprises power circuit, circuit for controlling motor, decoding circuit, coding circuit and control chip; Described circuit for controlling motor one end is connected with the motor be arranged in lower overcoat, and the other end is connected with control chip; Described control chip is connected with coding circuit with the Hall element be arranged in lower overcoat, decoding circuit respectively, and described decoding circuit is connected with signal cable with the other end of coding circuit.
In described step (3), the above tubing string of described back-off sub comprises the upper oil pipe be arranged in sleeve upper end portion, described upper oil pipe end is connected with data docking female joint, and described data docking female joint upper end is connected with the ground controller be arranged on outside sleeve pipe by the first signal cable.
Described upper oil pipe docks between female joint with data and is provided with Y-shaped connector, and side, described Y-shaped connector lower end is provided with the bypass pipe docking female joint with data and be connected, and described Y-shaped connector lower end opposite side is connected with electric pump unit, and described electric pump unit is connected with power cable.
Described upper oil pipe upper end is provided with storm valve.
Be provided with in described sleeve upper end portion and be connected with upper oil pipe and wear the cable-passing packer of the first signal cable and power cable.
Described step (5) specifically comprises the following steps:
A, Production Controller by signal cable by each layer Liquid output, pressure, temperature feedback to ground controller, ground controller sends the regulating command of Production Controller oil nozzle aperture;
B, described instruction are sent to the circuit board component of Production Controller by signal cable, after decoding circuit decoding, described instruction is sent to control chip, opens machine operation by control chip by circuit for controlling motor;
After c, motor are started working, by leading screw by force transmission to piston, piston axially moves, and the O on piston is enclosed and changes with the seal distance of valve sleeving inner wall thereupon, that is, the aperture size of oil nozzle constantly changes;
Magnet steel is driven to rotate when d, screw turns, whenever magnet steel produces pulse signal through Hall element, control chip passes through acquisition pulse signal determination piston stroke, when adjustment reaches oil nozzle aperture desirable value, control chip, by circuit for controlling motor disable motor, completes aperture and regulates.
The invention has the beneficial effects as follows:
1, the present invention adopted cable isolation packer that pay interval is divided into some intervals, Production Controller was arranged between cable isolation packer, the aperture of Production Controller is regulated by ground controller, and then regulate the Liquid output of each interval, make each layer rate of oil production reasonable, Real-Time Monitoring, controllable.
2, the present invention adopts releasing type to design, and when needing inspection pump, proposes pit shaft without the need to back-off sub with lower tubular column, decreases inspection pump operation, shortens the activity duration.
Accompanying drawing explanation
Fig. 1: horizontal well completion tubular pile structural representation;
Fig. 2: back-off sub of the present invention and with lower tubular column schematic diagram;
Fig. 3: tubular column structure schematic diagram of the present invention;
Fig. 4: Production Controller structural representation of the present invention;
Fig. 5: Production Controller transition joint upper end of the present invention sectional drawing;
Fig. 6: Production Controller transition joint lower end of the present invention sectional drawing;
Fig. 7: Production Controller of the present invention tests envelope pipe nipple structural representation;
Fig. 8: Production Controller oil nozzle of the present invention and motor component structure schematic diagram;
Fig. 9: Production Controller oil nozzle complete shut-down structural representation of the present invention;
Figure 10: Production Controller oil nozzle standard-sized sheet structural representation of the present invention;
Figure 11: Production Controller liquid flow schematic diagram of the present invention;
Figure 12: Production Controller circuit control principle figure of the present invention.
Accompanying drawing marks: 1, sleeve pipe; 2, top packer; 3, screen casing; 4, layer separating packer; 5, back-off sub; 6, data docking male joint; 7, cable packer is crossed at top; 8, secondary signal cable; 9, lower oil pipe; 10, centralizer; 11, cable isolation packer is crossed; 12, Production Controller; 13, circle is stifled; 14, data docking female joint; 15, the first signal cable; 16, bypass pipe; 17, ground controller; 18, electric pump unit; 19, Y-shaped connector; 20, power cable; 21, upper oil pipe; 22, cable-passing packer; 23, storm valve; 24, top connection; 25, the first signal cable head; 26, secondary signal cable head; 27, upper overcoat; 28, the first main channel; 29, first floor passage; 30, flow transmitter; 31, circuit board component; 32, transition joint; 33, the first screwed hole; 34, fluid hole; 35, the second screwed hole; 36, the 3rd screwed hole; 37, envelope pipe nipple is tested; 38, signal cable passes through hole; 39, the 4th screwed hole; 40, passageway bridge; 41, lower overcoat; 42, the second main channel; 43, electric machine assembly; 44, oil nozzle; 45, lower contact; 46, pipe external pressure sensor; 47, overpressure sensor; 48, temperature pick up; 49, pipe external pressure pressure guide hole; 50, second layer passage; 51, overpressure pressure guide hole; 52, layer inlet; 53, leading screw; 54, magnet steel; 55, Hall element; 56, O circle; 57, piston; 58, piston rod; 59, valve pocket; 60, main inlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in accompanying drawing 1-12, a kind of horizontal well releasing type adjustable fluid flow separate zone production method, comprises the steps:
First, by hierarchical process, back-off sub 5 is separated at least two intervals with the horizontal interval of lower tubular column, on separate-layer string, each interval all arranges the Production Controller 12 of adjustable fluid flow;
Wherein, described back-off sub 5 comprises data docking male joint 6 with lower tubular column, described data docking male joint 6 lower end is connected with the top being stuck in sleeve pipe 1 inwall and crosses cable packer 7, described top is crossed cable packer 7 lower end and is connected with lower oil pipe 9, what described lower oil pipe 9 bottom is positioned at layer separating packer 4 place is provided with that secondary signal cable 8 and data dock that male joint 6 is connected crosses cable isolation packer 11, and described cable isolation packer 11 two ends of crossing are connected with screen casing 3 and are connected with the centralizer 10 be arranged between lower oil pipe 9 and screen casing 3; Often be provided with Production Controller 12 between adjacent two mistake cable isolation packers 11 in described lower oil pipe 9, described lower oil pipe 9 end is provided with circle stifled 13;
Described Production Controller 12 comprises top connection 24, and described top connection 24 upper end is connected with the first signal cable head 25, and is reserved with tubing round thread; Described top connection 24 lower end is connected with overcoat 27, is provided with the first main channel 28 running through overcoat 27 and first floor passage 29, described first floor passage 29 is provided with flow transmitter 30 in described upper overcoat 27; In described upper overcoat 27 lower end, be positioned at first floor passage 29 and be outside equipped with the circuit board component 31 be connected with flow transmitter 30; Described upper overcoat 27 lower end is connected with transition joint 32, described transition joint 32 upper end bosom is provided with the first screwed hole 33 be connected with first floor passage 29, and inside, described transition joint 32 upper end is provided with the fluid hole 34 be connected with the first main channel 28, the second screwed hole 35 be connected with circuit board component 31 and the 3rd screwed hole 36; Described 3rd screwed hole 36 is connected with testing of being connected with described circuit board component 31 and seals pipe nipple 37, described envelope pipe nipple 37 of testing comprises pipe external pressure sensor 46, overpressure sensor 47, temperature pick up 48, the pipe external pressure pressure guide hole 49 be connected with oil jacket annular space and the overpressure pressure guide hole 51 be connected with second layer passage 50, described second layer passage 50 is connected with first floor passage 29; Be provided with the passageway bridge 40 that the signal cable running through transition joint 32 passes through hole 38 and is connected with described fluid hole 34 in described transition joint 32, described transition joint 32 lower end side is provided with layer inlet 52; Described transition joint 32 lower end is connected with lower overcoat 41, is provided with and runs through lower overcoat 41 and the second main channel 42 be connected with passageway bridge 40 in described lower overcoat 41; Electric machine assembly 43 is provided with in described lower overcoat 41 lower end, described electric machine assembly 43 upper end is connected with leading screw 53, described its circumferencial direction of leading screw 53 lower end edge is evenly provided with four magnet steel 54, is positioned at its circumferential plane and is provided with a Hall element 55 outside described magnet steel 54; Described leading screw 53 upper end is connected with to be passed through the 4th screwed hole 39 to be arranged on transition joint 32 inner and form the oil nozzle 44 of annular space with transition joint 32, described oil nozzle 44 comprises piston rod 58, be set in the piston 57 at piston rod 58 top, with the valve pocket 59 be tightly connected with described piston 57 by O circle 56, described valve pocket 59 outer wall and transition joint 32 inwall form second layer passage 50, described valve pocket 59 are positioned at second layer passage 50 entrance point and are provided with perforate; Described lower overcoat 41 lower end is connected with lower contact 45, is provided with the main inlet 60 be connected with the second main channel 42 in described lower contact 45, and described lower contact 45 lower end is connected with secondary signal cable head 26, and is reserved with tubing round thread.When Production Controller 12 works, main inlet 60, first main channel 42, main channel 28, second and passageway bridge 40 form the flow channels (as shown in Figure 11 dotted arrow) of other layer of production fluid except this layer, and layer inlet 52, first floor passage 29 and second layer passage 50 form the flow channels (as shown in Figure 11 solid arrow) of this layer of production fluid; Wherein, described circuit board component 31 comprises power circuit, circuit for controlling motor, decoding circuit, coding circuit and control chip; Described circuit for controlling motor one end is connected with the motor be arranged in lower overcoat 41, and the other end is connected with control chip; Described control chip is connected with coding circuit with the Hall element 55 be arranged in lower overcoat 41, decoding circuit respectively, and described decoding circuit is connected with signal cable with the other end of coding circuit;
Secondly, assembling back-off sub 5 and with lower tubular column and under enter in oil well casing 1, and with entering secondary signal cable 8 at present; Wherein, be provided with screen casing 3 in described sleeve pipe 1, described screen casing 3 top is provided with the top packer 2 be stuck on sleeve pipe 1 inwall, is provided with at least one layer separating packer 4 between described screen casing 3 and sleeve pipe 1;
Then, assembling back-off sub more than 5 tubing string and under enter in oil well casing 1, and with entering the first signal cable 15 at present; Wherein, described back-off sub more than 5 tubing string comprises the upper oil pipe 21 be arranged in sleeve pipe 1 upper end, described upper oil pipe 21 upper end can be provided with storm valve 23, described upper oil pipe 21 end directly connection data can dock female joint 14, or to dock between female joint 14 with data at upper oil pipe 21 Y-shaped connector 19 is set, side, described Y-shaped connector 19 lower end is provided with the bypass pipe 16 docking female joint 14 with data and be connected, described Y-shaped connector 19 lower end opposite side is connected with electric pump unit 18, and described electric pump unit 18 is connected with power cable 20; Described data docking female joint 14 upper end is connected with the ground controller 17 be arranged on outside sleeve pipe 1 by the first signal cable 15; Can be provided with in described sleeve pipe 1 upper end and to be connected with upper oil pipe 21 and to wear the cable-passing packer 22 of the first signal cable 15 and power cable 20;
Again, the data docking female joint 14 of back-off sub more than 5 tubing string is docked male joint 6 with back-off sub 5 with the data of lower tubular column and is docked, and is realized the communication of Production Controller 12 and ground controller 17 by the first signal cable 15 and secondary signal cable 8;
Finally, after Production Controller 12 and ground controller 17 communication, Production Controller 12 by signal cable by each layer Liquid output, pressure, temperature feedback to ground controller 17, ground controller 17 sends the regulating command of Production Controller oil nozzle 44 aperture; Described instruction is sent to the circuit board component 31 of Production Controller 12 by signal cable, and after decoding circuit decoding, described instruction is sent to control chip, opens machine operation by control chip by circuit for controlling motor; After motor is started working, by leading screw 53 by force transmission to piston 57, piston 57 axially moves, and make the O on piston 57 enclose 56 and change with the seal distance of valve pocket 59 inwall thereupon, that is, the aperture size of oil nozzle 44 constantly changes; Simultaneously, magnet steel 54 is driven to rotate when leading screw 53 rotates, whenever magnet steel 54 through Hall element 55 time produce pulse signal, control chip is by acquisition pulse signal determination piston 57 stroke, when adjustment reaches oil nozzle 44 aperture desirable value, control chip, by circuit for controlling motor disable motor, completes aperture and regulates.
Claims (9)
1. a horizontal well releasing type adjustable fluid flow separate zone production method, is characterized in that, comprise the steps:
(1) by hierarchical process, back-off sub is separated at least two intervals with the horizontal interval of lower tubular column, on separate-layer string, each interval all arranges the Production Controller of adjustable fluid flow;
(2) assembling back-off sub and with lower tubular column and under enter in oil well casing, and with entering secondary signal cable at present;
(3) the above tubing string of assembling back-off sub and under enter in oil well casing, and with entering the first signal cable at present;
(4) the data docking female joint of the above tubing string of back-off sub is docked male joint with back-off sub with the data of lower tubular column and is docked, and is realized the communication of Production Controller and ground controller by the first signal cable and secondary signal cable;
(5) after Production Controller and ground controller communication, Production Controller by signal cable by each layer Liquid output, pressure, temperature feedback to ground controller, regulated the aperture size of Production Controller by ground controller.
2. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 1, it is characterized in that, in described step (1), described back-off sub comprises data docking male joint with lower tubular column, described data docking male joint lower end is connected with the top being stuck in internal surface of sleeve pipe and crosses cable packer, described top is crossed cable packer lower end and is connected with lower oil pipe, what described lower oil pipe bottom is positioned at layer separating packer place is provided with that secondary signal cable and data dock that male joint is connected crosses cable isolation packer, described cable isolation packer two ends of crossing are connected with screen casing and are connected with the centralizer be arranged between lower oil pipe and screen casing, often be provided with Production Controller between adjacent two mistake cable isolation packers in described lower oil pipe, it is stifled that described lower oil pipe end is provided with circle.
3. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 1 and 2, it is characterized in that, described Production Controller comprises top connection, and described top connection upper end is connected with the first signal cable head; Described top connection lower end is connected with overcoat, is provided with the first main channel running through overcoat and first floor passage in described upper overcoat, and described first floor passage is provided with flow transmitter; In described upper overcoat lower end, be positioned at first floor passage and be outside equipped with the circuit board component be connected with flow transmitter; Described upper overcoat lower end is connected with transition joint, described transition joint upper end bosom is provided with the first screwed hole be connected with first floor passage, and inside, described transition joint upper end is provided with the fluid hole be connected with the first main channel, the second screwed hole be connected with circuit board component and the 3rd screwed hole; Described 3rd screwed hole be connected be connected with described circuit board component test envelope pipe nipple, described envelope pipe nipple of testing comprises pipe external pressure sensor, overpressure sensor, temperature pick up, the pipe external pressure pressure guide hole be connected with oil jacket annular space and the overpressure pressure guide hole be connected with second layer passage, described second layer passage is connected with first floor passage; Be provided with the passageway bridge that the signal cable running through transition joint passes through hole and is connected with described fluid hole in described transition joint, described transition joint lower end side is provided with a layer inlet; Described transition joint lower end is connected with lower overcoat, is provided with and runs through lower overcoat and the second main channel be connected with passageway bridge in described lower overcoat; Be provided with electric machine assembly in described lower overcoat lower end, described electric machine assembly upper end is connected with leading screw, and described its circumferencial direction of leading screw lower end edge is evenly provided with four magnet steel, is positioned at its circumferential plane and is provided with a Hall element outside described magnet steel; Described leading screw upper end is connected with to be passed through the 4th screwed hole to be arranged on transition joint inner and form the oil nozzle of annular space with transition joint, described oil nozzle comprises piston rod, be set in the piston of piston rod part, with enclosed the valve pocket be connected with described piston seal by O, described valve pocket outer wall and transition joint inwall form second layer passage, described valve pocket are positioned at second layer channel entrance end and are provided with perforate; Described lower overcoat lower end is connected with lower contact, is provided with the main inlet be connected with the second main channel in described lower contact, and described lower contact lower end is connected with secondary signal cable head.
4. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 3, it is characterized in that, described circuit board component comprises power circuit, circuit for controlling motor, decoding circuit, coding circuit and control chip; Described circuit for controlling motor one end is connected with the motor be arranged in lower overcoat, and the other end is connected with control chip; Described control chip is connected with coding circuit with the Hall element be arranged in lower overcoat, decoding circuit respectively, and described decoding circuit is connected with signal cable with the other end of coding circuit.
5. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 1, it is characterized in that, in described step (3), the above tubing string of described back-off sub comprises the upper oil pipe be arranged in sleeve upper end portion, described upper oil pipe end is connected with data docking female joint, and described data docking female joint upper end is connected with the ground controller be arranged on outside sleeve pipe by the first signal cable.
6. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 5, it is characterized in that, described upper oil pipe docks between female joint with data and is provided with Y-shaped connector, side, described Y-shaped connector lower end is provided with the bypass pipe docking female joint with data and be connected, described Y-shaped connector lower end opposite side is connected with electric pump unit, and described electric pump unit is connected with power cable.
7. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 5, is characterized in that, described upper oil pipe upper end is provided with storm valve.
8. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 1 or 5, is characterized in that, is provided with and is connected with upper oil pipe and wears the cable-passing packer of the first signal cable and power cable in described sleeve upper end portion.
9. horizontal well releasing type adjustable fluid flow separate zone production method according to claim 1, it is characterized in that, described step (5) specifically comprises the following steps:
A, Production Controller by signal cable by each layer Liquid output, pressure, temperature feedback to ground controller, ground controller sends the regulating command of Production Controller oil nozzle aperture;
B, described instruction are sent to the circuit board component of Production Controller by signal cable, after decoding circuit decoding, described instruction is sent to control chip, opens machine operation by control chip by circuit for controlling motor;
After c, motor are started working, by leading screw by force transmission to piston, piston axially moves, and the O on piston is enclosed and changes with the seal distance of valve sleeving inner wall thereupon, that is, the aperture size of oil nozzle constantly changes;
Magnet steel is driven to rotate when d, screw turns, whenever magnet steel produces pulse signal through Hall element, control chip passes through acquisition pulse signal determination piston stroke, when adjustment reaches oil nozzle aperture desirable value, control chip, by circuit for controlling motor disable motor, completes aperture and regulates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510993809.3A CN105422058B (en) | 2015-12-25 | 2015-12-25 | A kind of adjustable flow point layer recovery method of horizontal well releasing type |
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| CN201510993809.3A CN105422058B (en) | 2015-12-25 | 2015-12-25 | A kind of adjustable flow point layer recovery method of horizontal well releasing type |
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| CN105422058A true CN105422058A (en) | 2016-03-23 |
| CN105422058B CN105422058B (en) | 2018-06-26 |
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| CN107227945A (en) * | 2017-08-11 | 2017-10-03 | 付吉平 | Gas well separate zone production, control, the intelligent controlling device of test and control method |
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| CN110043215A (en) * | 2019-05-28 | 2019-07-23 | 西安思坦仪器股份有限公司 | A kind of electronic plugging device of horizontal well |
| CN110284877A (en) * | 2019-05-25 | 2019-09-27 | 中国海洋石油集团有限公司 | A kind of underground permanent setting type dynamic monitoring device and monitoring method |
| CN112282738A (en) * | 2020-11-04 | 2021-01-29 | 中国石油天然气股份有限公司 | Horizontal well water finding and plugging integrated pipe column and testing method |
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| US20220325605A1 (en) * | 2019-08-14 | 2022-10-13 | Tota Systems Limited Liability Company (Tota Systems Llc) | Method for interval action on horizontal wells |
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