CN201810291U - Zonal injection automatic circulation switch device and automatic circulation zonal injection system - Google Patents
Zonal injection automatic circulation switch device and automatic circulation zonal injection system Download PDFInfo
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- CN201810291U CN201810291U CN 201020533481 CN201020533481U CN201810291U CN 201810291 U CN201810291 U CN 201810291U CN 201020533481 CN201020533481 CN 201020533481 CN 201020533481 U CN201020533481 U CN 201020533481U CN 201810291 U CN201810291 U CN 201810291U
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- drive motors
- water injection
- automatic cycle
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- valve pocket
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Abstract
The utility model discloses a zonal injection automatic circulation switch device and an automatic circulation zonal injection system adopting the zonal injection automatic circulation switch device. A micro processor, a storage battery group and a driving motor are integrally arranged in the automatic circulation switch device connected to the inside of a water injection string, the driving motor is controlled to open and close an eccentric water distribution valve through time sequences preset in the micro processor, and each automatic circulation switch device is opened and closed in turns according to set time sequences, so the automatic control periodic zonal injection is realized. The zonal injection automatic circulation switch device has high integration degree and high automation degree, is simple to operate, realizes the automatic zonal injection in an unattended way, avoids the misoperation caused by human factors in the prior art, has simple structure, accurately controls the zonal injection quality and has reliable process.
Description
Technical field
The utility model belongs to oilfield exploitation downhole tool technical field, relates to the Automatic Cycle derailing switch of a kind of oil field laminated distributor under well Automatic Cycle water injection technology and uses the Automatic Cycle seperated layer water injection system that this Automatic Cycle derailing switch is formed.
Background technology
The down-hole oil reservoir in east China oil field is more, situation is complicated, entered the waterflooding extraction later stage at present, particularly the part oil well has entered the exploitation late period of ultra-high water-containing, the interlayer contradiction of each oil reservoir of oil well is increasingly sharpened, and comprehensive water cut constantly raises, the object complexity of taping the latent power, the oilfield exploitation difficulty continues to increase, and makes to take conventional zonal injection technology dynamically to adjust difficulty.
Original technology is to control each layer injection rate by the injection well downhole flow regulator water nozzle, the allotment of the wire Launching and Bailing test regularly water yield, it has solved water injection well interlayer interference problem to a certain extent, alleviated interlayer contradiction, but loaded down with trivial details, the complicated operation of its technology, and exist the underground water-injection tubing string that causes owing to reasons such as water quality, fouling, hole condition hole deviations obstruction, can't the pulling allotment etc. problem.
On September 10th, 2008, disclosed application number was that 200810064336.9 Chinese invention patent application specification discloses a kind of electromagnetical linearly adjusted flux device for down-hole injection-production, this device is to be provided with electromagnetic signal receiver, drive motor controller and drive motors in the injection well downhole flow regulator of setovering in down-hole string successively, the output shaft spiral of drive motors connects valve rod, and the valve rod lower end connects the valve ball that cooperates with valve seat; In tubing string dangle an electromagnetic signal transmitter to injection well downhole flow regulator by by winch by steel wire on ground, ground control system is by electromagnetic signal transmitter emissioning controling signal, and the electromagnetic signal receiver in the injection well downhole flow regulator opens and closes the water yield that water distribution valve is adjusted water filling according to the signal controlling drive motors that receives.This electromagnetical linearly adjusted flux device for down-hole injection-production needs the switching of ground handling personnel by electromagnetic signal control injection well downhole flow regulator, thereby its water filling allotment operation is comparatively complicated, the human operational error appears easily, cause seperated layer water injection to measure existing error, flood effectiveness is poor, and it controls cost higherly, and the integral body of equipment is safeguarded comparatively difficulty.
The utility model content
A purpose of the present utility model is: provide a kind of and can control the seperated layer water injection Automatic Cycle derailing switch that water distribution valve opens and closes automatically.
For achieving the above object, the technical solution of the utility model is: a kind of seperated layer water injection Automatic Cycle derailing switch, comprise the switch main body that axially offers the central water flooding pipeline, biasing is provided with the eccentric center water-distributing valve in the switch main body, described eccentric center water-distributing valve comprises valve pocket, on the tube wall of central water flooding pipeline, offer the inlet opening that is communicated with valve pocket, on the outer wall of switch main body, offer the weep hole that is communicated with valve pocket, be provided with spool in the described valve pocket, spool is in transmission connection on the output shaft of a drive motors by transmission mechanism, comprise that also being used for the batteries of powering to drive motors and being used to control batteries is the microprocessor that drive motors is periodically powered by setting sequential, the input interface of microprocessor is connected with batteries, and the output interface of microprocessor is connected with drive motors.
Upper/lower terminal at described switch main body is connected with upper and lower joint respectively, be provided with an enclosure space between the outer wall of the inwall of described top connection and switch main body, described batteries, microprocessor and drive motors all are fixedly mounted in this enclosure space.
Adopt screw rod, nut transmission mechanism to be in transmission connection between described drive motors and the spool.
Described spool is the hollow trunk-piston of and valve pocket inner wall sealing slidable fit axial along switch main body, the upper surface central axis of piston is to offering screwed hole, on the outer wall of piston, axially offer groove, be fixed with the stop pin that is slidingly matched with this groove on the inwall of described valve pocket, described screw coaxial is fixed on the output shaft of drive motors.
Another purpose of the present utility model is: the Automatic Cycle seperated layer water injection system that provides a kind of and need not manual intervention, can realize automatic control hierarchy water filling operation.
For realizing this purpose, the technical scheme that the utility model is taked is: a kind of Automatic Cycle seperated layer water injection system, comprise the underground water-injection tubing string, be provided with plural seperated layer water injection Automatic Cycle derailing switch in the water injection string at interval, described seperated layer water injection Automatic Cycle derailing switch comprises the switch main body that axially offers the central water flooding pipeline, biasing is provided with the eccentric center water-distributing valve in the switch main body, described eccentric center water-distributing valve comprises valve pocket, on the tube wall of central water flooding pipeline, offer the inlet opening that is communicated with valve pocket, on the outer wall of switch main body, offer the weep hole that is communicated with valve pocket, be provided with spool in the described valve pocket, spool is in transmission connection on the output shaft of a drive motors by transmission mechanism, comprise that also being used for the batteries of powering to drive motors and being used to control batteries is the microprocessor that drive motors is periodically powered by setting sequential, the input interface of microprocessor is connected with batteries, the output interface of microprocessor is connected with drive motors, and the sequential of setting in the microprocessor of each seperated layer water injection Automatic Cycle derailing switch according to its installation opens and closes in turn.
Be connected with the surface flow amount control system on the described water injection string, described surface flow amount control system is made up of the flow control valve and the pressure meter that are connected in the surface line, is rotated by ground artificial and regulates the individual layer water filling water yield.
The quantity of the seperated layer water injection Automatic Cycle derailing switch that is provided with in the described water injection string is no more than 4.
Upper/lower terminal at described switch main body is connected with upper and lower joint respectively, be provided with an enclosure space between the outer wall of the inwall of described top connection and switch main body, described batteries, microprocessor and drive motors all are fixedly mounted in this enclosure space.
Adopt screw rod, nut transmission mechanism to be in transmission connection between described drive motors and the spool.
Described spool is the hollow trunk-piston of and valve pocket inner wall sealing slidable fit axial along switch main body, the upper surface central axis of piston is to offering screwed hole, on the outer wall of piston, axially offer groove, be fixed with the stop pin that is slidingly matched with this groove on the inwall of described valve pocket, described screw coaxial is fixed on the output shaft of drive motors.
The utility model adopts technique scheme, it is installed on the water distribution switch microprocessor, batteries and drive motors are integrated, automatically controlling water distribution valve by the sequential that sets in microprocessor in advance regularly opens and closes, thereby realize unattended AUTOMATIC ZONING water filling, it is simple in structure, and automaticity height, simple to operate, avoided the operate miss of human factor in the prior art, the precise control of seperated layer water injection amount, technology are reliable.
Description of drawings
Fig. 1 is the structural representation of the concrete embodiment of seperated layer water injection Automatic Cycle derailing switch in the utility model;
Fig. 2 is the structural representation of Automatic Cycle seperated layer water injection system specific embodiment in the utility model.
The specific embodiment
As shown in Figure 1, seperated layer water injection Automatic Cycle derailing switch of the present utility model comprises that central axis is to the switch main body 8 that offers the central water flooding pipeline, on the switch main body 8, following two ends are respectively by top connection 1 and the lower contact 9 of being threaded, biasing is provided with the eccentric center water-distributing valve in switch main body 8, this eccentric center water-distributing valve comprises the valve pocket of axially offering 11, on the tube wall of central water flooding pipeline, offer the inlet opening 10 that is communicated with valve pocket 11, on the outer wall of switch main body 8, offer the weep hole 12 that is communicated with valve pocket 11, inlet opening 10, weep hole 12 and the valve pocket 11 common water distribution passages of forming.Sealing is slided and is equipped with the spool 7 that is used to open and close the water distribution passage in valve pocket 11, and spool 7 is in transmission connection on the output shaft of drive motors 4 by screw rod, nut rotating mechanism.In the present embodiment, screw rod 5 is connected with the output shaft of drive motors 4 is coaxial, spool 7 adopts hollow tubular piston structure, offer screwed hole with screw rod 5 threaded engagement in the upper surface of this piston, axially offer groove on the outer wall of piston, being fixed with on the sidewall of valve pocket 11 is slidingly matched with the piston outer wall respective grooves is used to prevent that it is by the stop pin 6 of screw rod 5 driven rotary.Be connected with on drive motors 4 and be used to control it by setting the microprocessor 3 that sequential is periodically powered, the input of microprocessor 3 is connected with batteries 2, and the output of microprocessor 3 is connected on the drive motors 4.Sealing is provided with an enclosure space between the inwall of the outer wall of switch main body 8 and top connection 1, and batteries 2, microprocessor 3 and drive motors 4 are fixed in this enclosure space from top to bottom successively.
What the microprocessor 3 that uses in the present embodiment adopted is the PIC18F2620 single-chip microcomputer of Microchip company, before use, earlier begin to rotate until hollow trunk-piston 7 and open or close water distribution passage needed duration of runs at aboveground test drive motors 4, in the clock circuit of microprocessor 3, write the opening time of control drive motors 4 work then, duration of runs of drive motors when continuing unlatching cycle, shut-in time, continue the cycle of closing and opening and closing the water distribution passage, make microprocessor when arriving the specific time cycle, can send starting or halt instruction.
When seperated layer water injection Automatic Cycle derailing switch is in closed condition, when the clock circuit in the microprocessor 3 arrives the opening time of setting, microprocessor 3 is connected batteries 2 and drive motors 4 and send and is rotated in the forward signal, drive motors 4 is rotated in the forward, driving screw rod 5 is rotated in the forward, under stop pin 6 and barrier effect that respective grooves cooperates, hollow trunk-piston 7 passes through screw rod, nut transmission mechanism moves upward, after drive motors 4 is rotated in the forward the duration of runs of setting, microprocessor 3 sends stop signal, drive motors 4 stops the rotation, thereby the sealing ring that is provided with on hollow trunk-piston 7 outer peripheral faces leaves the place of being sealed and matched of valve pocket 11 and opens the water distribution passage, the Automatic Cycle derailing switch enters and continues the unlatching cycle, the beginning water filling.When the clock circuit of microprocessor 3 arrives the shut-in time, microprocessor 3 sends the reverse rotation signal, drive motors 4 reverse rotations, drive screw rod 5 reverse rotations, under the barrier effect of stop pin 6, hollow trunk-piston 7 moves downward, after the duration of runs that drive motors 4 reverse rotations are set, microprocessor 3 sends stop signal, drive motors 4 stops the rotation, the place of being sealed and matched that hollow trunk-piston 7 sealing rings arrive valve pocket 11 closes the water distribution passage, and the Automatic Cycle derailing switch enters and continues the cycle of cutting out.When 3 working times of microprocessor reached the opening time once more, microprocessor 3 sent rotating signal once more, and the water distribution passage is opened in control east, drive motors 4 station, so moves in circles, and realizes the recurrent state of the regular Open-closure of the utility model-unlatching.
As shown in Figure 2, Automatic Cycle seperated layer water injection of the present utility model system comprises continuous surface flow amount control system part and underground water-injection tubing string part, be provided with hydraulic anchor 16 on the top of tubing string, the bottom of tubing string is provided with flow-limiting valve 19, screen casing 20 and plug 21, alternate four Automatic Cycle derailing switches 17 and three packers 18 of being provided with of corresponding each oil reservoir in the middle part of water injection string, be respectively arranged with microcomputerized control mechanism and operating mechanism on each automatic cycling switch device 17,17 microcomputerized control mechanism is set with the keying sequential respectively on each automatic cycling switch device, the sequential automatically by turns opening and closing of each automatic cycling switch device 17 by setting are to the water filling that circulates of each oil reservoir 22.The surface flow amount control system that connects on the water injection string is made up of the flow control valve 12 and the pressure meter 11 that are connected in the surface line 13, is rotated by ground artificial and regulates the individual layer water filling water yield, and surface line 13 is communicated with the underground water-injection tubing string.
2～4 seperated layer water injection Automatic Cycle derailing switches 17 are gone into the well with water injection string, corresponding different injection layer position, alternately set the opening time, continue unlatching cycle, shut-in time, continue the cycle of closing, can realize the layering Automatic Cycle water filling that hockets of a plurality of intervals, only corresponding individual layer injects during each water filling, by the surface line control water yield, the ground water meter measurement water yield, what water injection pressure reflected is the stream pressure of implanted layer, is convenient in time grasp the implanted layer situation.Be provided with waterflood path in the seperated layer water injection Automatic Cycle derailing switch of the present utility model, can be lowered to the water yield under the flow measurement well testing that external diameter is not more than 40mm, check valve is opened situation, and can carry out isotope injection profile and detect, and satisfies the production demand.
The utility model is not limited to the foregoing description, those skilled in the art is easy to expect the eccentric center water-distributing valve of other structures or shape, for example spool can also adopt sphere moving up and down or pyramidal structure, the spool of this sphere or taper by valve rod be connected in the screw rod nut engaged on; Perhaps drive motors and spool can also adopt rack and pinion drive mechanism to be in transmission connection or the like, all within protection domain of the present utility model.
Claims (10)
1. seperated layer water injection Automatic Cycle derailing switch, comprise the switch main body that axially offers the central water flooding pipeline, biasing is provided with the eccentric center water-distributing valve in the switch main body, described eccentric center water-distributing valve comprises valve pocket, on the tube wall of central water flooding pipeline, offer the inlet opening that is communicated with valve pocket, on the outer wall of switch main body, offer the weep hole that is communicated with valve pocket, be provided with spool in the described valve pocket, spool is in transmission connection on the output shaft of a drive motors by transmission mechanism, it is characterized in that, comprise that also being used for the batteries of powering to drive motors and being used to control batteries is the microprocessor that drive motors is periodically powered by setting sequential, the input interface of microprocessor is connected with batteries, and the output interface of microprocessor is connected with drive motors.
2. seperated layer water injection Automatic Cycle derailing switch according to claim 1, it is characterized in that, upper/lower terminal at described switch main body is connected with upper and lower joint respectively, be provided with an enclosure space between the outer wall of the inwall of described top connection and switch main body, described batteries, microprocessor and drive motors all are fixedly mounted in this enclosure space.
3. seperated layer water injection Automatic Cycle derailing switch according to claim 1 is characterized in that, adopts screw rod, nut transmission mechanism to be in transmission connection between described drive motors and the spool.
4. seperated layer water injection Automatic Cycle derailing switch according to claim 3, it is characterized in that, described spool is the hollow trunk-piston of and valve pocket inner wall sealing slidable fit axial along switch main body, the upper surface central axis of piston is to offering screwed hole, on the outer wall of piston, axially offer groove, be fixed with the stop pin that is slidingly matched with this groove on the inwall of described valve pocket, described screw coaxial is fixed on the output shaft of drive motors.
5. Automatic Cycle seperated layer water injection system, comprise the underground water-injection tubing string, be provided with plural seperated layer water injection Automatic Cycle derailing switch in the water injection string at interval, described seperated layer water injection Automatic Cycle derailing switch comprises the switch main body that axially offers the central water flooding pipeline, biasing is provided with the eccentric center water-distributing valve in the switch main body, described eccentric center water-distributing valve comprises valve pocket, on the tube wall of central water flooding pipeline, offer the inlet opening that is communicated with valve pocket, on the outer wall of switch main body, offer the weep hole that is communicated with valve pocket, be provided with spool in the described valve pocket, spool is in transmission connection on the output shaft of a drive motors by transmission mechanism, it is characterized in that, comprise that also being used for the batteries of powering to drive motors and being used to control batteries is the microprocessor that drive motors is periodically powered by setting sequential, the input interface of microprocessor is connected with batteries, the output interface of microprocessor is connected with drive motors, and the sequential of setting in the microprocessor of each seperated layer water injection Automatic Cycle derailing switch according to its installation opens and closes in turn.
6. Automatic Cycle seperated layer water injection according to claim 5 system, it is characterized in that, be connected with the surface flow amount control system on the described water injection string, described surface flow amount control system is made up of the flow control valve and the pressure meter that are connected in the surface line, is rotated by ground artificial and regulates the individual layer water filling water yield.
7. Automatic Cycle seperated layer water injection according to claim 5 system is characterized in that the quantity of the seperated layer water injection Automatic Cycle derailing switch that is provided with in the described water injection string is no more than 4.
8. Automatic Cycle seperated layer water injection according to claim 5 system, it is characterized in that, upper/lower terminal at described switch main body is connected with upper and lower joint respectively, be provided with an enclosure space between the outer wall of the inwall of described top connection and switch main body, described batteries, microprocessor and drive motors all are fixedly mounted in this enclosure space.
9. Automatic Cycle seperated layer water injection according to claim 5 system is characterized in that, adopts screw rod, nut transmission mechanism to be in transmission connection between described drive motors and the spool.
10. Automatic Cycle seperated layer water injection according to claim 5 system, it is characterized in that, described spool is the hollow trunk-piston of and valve pocket inner wall sealing slidable fit axial along switch main body, the upper surface central axis of piston is to offering screwed hole, on the outer wall of piston, axially offer groove, be fixed with the stop pin that is slidingly matched with this groove on the inwall of described valve pocket, described screw coaxial is fixed on the output shaft of drive motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020533481 CN201810291U (en) | 2010-09-17 | 2010-09-17 | Zonal injection automatic circulation switch device and automatic circulation zonal injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020533481 CN201810291U (en) | 2010-09-17 | 2010-09-17 | Zonal injection automatic circulation switch device and automatic circulation zonal injection system |
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| CN201810291U true CN201810291U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201020533481 Expired - Lifetime CN201810291U (en) | 2010-09-17 | 2010-09-17 | Zonal injection automatic circulation switch device and automatic circulation zonal injection system |
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| CN (1) | CN201810291U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936149A (en) * | 2010-09-17 | 2011-01-05 | 中国石油化工股份有限公司 | Automatic circulation switchers, separate zone water injection system and automatic circulation water injection method |
| CN102418505A (en) * | 2011-12-20 | 2012-04-18 | 西安思坦仪器股份有限公司 | Cable-type water injection well allocation device and method |
| CN103982164A (en) * | 2014-03-07 | 2014-08-13 | 中国石油天然气股份有限公司 | Concentric adjustable eccentric valve water distribution device |
| CN106150459A (en) * | 2016-08-24 | 2016-11-23 | 江汉油田科瑞德石油工程技术（武汉）有限公司 | A kind of seperated layer water injection system |
| CN107780905A (en) * | 2017-10-25 | 2018-03-09 | 中国石油天然气股份有限公司 | A kind of pressure flow dual carrier underground and ground communications device |
| CN110067543A (en) * | 2019-05-30 | 2019-07-30 | 大庆华油石油科技开发有限公司 | A kind of injection well downhole flow regulator for realizing switch by electromagnetic drive |
-
2010
- 2010-09-17 CN CN 201020533481 patent/CN201810291U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936149A (en) * | 2010-09-17 | 2011-01-05 | 中国石油化工股份有限公司 | Automatic circulation switchers, separate zone water injection system and automatic circulation water injection method |
| CN101936149B (en) * | 2010-09-17 | 2013-12-04 | 中国石油化工股份有限公司 | Automatic circulation switchers, separate zone water injection system and automatic circulation water injection method |
| CN102418505A (en) * | 2011-12-20 | 2012-04-18 | 西安思坦仪器股份有限公司 | Cable-type water injection well allocation device and method |
| CN103982164A (en) * | 2014-03-07 | 2014-08-13 | 中国石油天然气股份有限公司 | Concentric adjustable eccentric valve water distribution device |
| CN103982164B (en) * | 2014-03-07 | 2016-07-06 | 中国石油天然气股份有限公司 | Concentric eccentric valve injection well downhole flow regulator |
| CN106150459A (en) * | 2016-08-24 | 2016-11-23 | 江汉油田科瑞德石油工程技术（武汉）有限公司 | A kind of seperated layer water injection system |
| CN106150459B (en) * | 2016-08-24 | 2018-09-11 | 江汉油田科瑞德油气工程（武汉）有限公司 | A kind of seperated layer water injection system |
| CN107780905A (en) * | 2017-10-25 | 2018-03-09 | 中国石油天然气股份有限公司 | A kind of pressure flow dual carrier underground and ground communications device |
| CN110067543A (en) * | 2019-05-30 | 2019-07-30 | 大庆华油石油科技开发有限公司 | A kind of injection well downhole flow regulator for realizing switch by electromagnetic drive |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20131204 |
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| RGAV | Abandon patent right to avoid regrant |