CN203230395U - Intelligent downhole throttle device - Google Patents
Intelligent downhole throttle device Download PDFInfo
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- CN203230395U CN203230395U CN 201320100084 CN201320100084U CN203230395U CN 203230395 U CN203230395 U CN 203230395U CN 201320100084 CN201320100084 CN 201320100084 CN 201320100084 U CN201320100084 U CN 201320100084U CN 203230395 U CN203230395 U CN 203230395U
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- valve rod
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- screw nut
- spool
- lead screw
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Abstract
Provided is an intelligent downhole throttle device. A speed reducer of a motor and a speed reducing machine integrated mechanism is connected with a lead screw through a coupler. A lead screw nut matched with the lead screw is arranged in the lead screw nut connecting base. A lead screw nut connecting cap fastens the lead screw nut. A valve rod is connected with a valve rod connecting barrel. The valve rod connecting barrel is connected with a bearing seat. The valve rod is in threaded connection with a valve core. A throttle valve seat and the valve core form an adjustable cone valve, and the valve core can be displaced to change the through-flow area between the valve core and the valve seat. A sealing seat is connected with an oil pipe through a threaded fastener. A motor end sealing barrel is connected onto a cable penetration sealing seat through threads at the tail portion. The sealing barrel is connected with the cable penetration sealing seat. The intelligent downhole throttle device achieves adjustment of the through-flow area by adopting the throttle diameter facilitating adjustment of the throttle device and can be matched with a ground personal computer (PC) and an underground sensing and detection system to achieve remote automatic throttle control and monitoring of production data before and after throttling.
Description
Technical field
The utility model relates to a kind of intellectual downhole choke device, belongs to the automatic control technology field of intellectual downhole choke control system.
Background technology
In recent years, the maturation of natural gas downhole choke technology is used, and has promoted the development of underground throttle device.How the environmental aspects such as pressure and temp changeable according to the down-hole works out and can regulate the downhole choke parameter in real time, reaches throttling step-down stable yields purpose natural gas downhole intelligent throttle system and become more and more important.
Abroad, about the research of downhole choke device comparative maturity, and be tending towards automation more.External smart well down-off control equipment mainly reaches real-time control by opening-closing type choke valve or adjustable choke valve, the ability of remote control flow.Their mentality of designing is to optimize the various data that mining system is analyzed the down-hole according to oil well, sends instruction by the Long-distance Control of hydraulic pressure or electric pattern realization remote control downhole choke device, thus flow and the flow behavior of control downhole fluid.Yet at home, the research of intelligent downhole tool is also at the early-stage, also just introduces the part technology of external intelligent completion in application facet, and downhole intelligent flow-control equipment almost not have the application of being correlated with yet.
In the existing natural gas extraction, what generally use is the movable and fixed underground throttle device that has flow nipple at home.Drop at present use mostly be the slip-type underground throttle device, preset work cartridge type (artificial throw-in type) underground throttle device.And various the reaching by improvement frame for movement that grows up on this basis is convenient to pulling; and solve and to set tight, crash rate than the novel throttling device of problems such as height; set up protection ring as the shoulder at restriction choke, adopt piston to set, corollary new sand control screen etc. improve product.
But these new structures all only set about unilaterally considering the throttling problem from machinery, the bright Based Intelligent Control that relates to the throttling parameter less of research.Traditional underground throttle device can't be regulated the size in restriction choke mouth footpath in real time, must realize the throttling function of different brackets by closing well and the oil nozzle of taking wireline operation to change different size, so that can't in time adjust the output of gas well, influence manufacturing schedule, increase operating risk.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of intellectual downhole choke device.Single in order to overcome domestic existing throttling arrangement flow nipple diameter, can not adapt to the changeable throttling step-down requirement in down-hole, to realize that aboveground remote auto is controlled to be theory, introduced a kind of adjustable cone valve throttle structure, advanced motor and efficient accurately transmission mechanism are combined, thereby make up intellectual throttling arrangement.This device can be according to the actual environment of down-hole, and the throttling diameter of automatic or semi-automatic adjusting choke valve changes the flow area of its cooperation, thereby reaches the purpose of throttling step-down in real time.
A kind of intellectual downhole choke device comprises valve rod, valve rod connecting cylinder, bearing support, feed screw nut Connection Block, feed screw nut connection cover, leading screw, shaft coupling and motor and reductor integrated mechanism;
Motor is connected with leading screw by shaft coupling with the reducer of reductor integrated mechanism; Be provided with the feed screw nut that matches with leading screw in the feed screw nut Connection Block;
The feed screw nut connection cover tightens up feed screw nut;
Valve rod is connected with the valve rod connecting cylinder;
The valve rod connecting cylinder is connected with bearing support;
Valve rod links to each other with the spool screw thread;
Throttle valve seat and spool are formed an adjustable cone valve, and spool can displacement, change the flow area of regulating spool and valve base chamber;
First sensor holder tube is installed first pressure sensor and first temperature pick up;
The second sensor holder tube is installed second pressure sensor and second temperature pick up;
Seal receptacle links to each other by screw buckle with oil pipe; The motor side sealing drum is connected cable by its tailing screw flight and passes through on the seal receptacle; Connection Block can either couple together motor side sealing drum and leading screw end sealing drum, also can be used in fixedly lead screw shaft bearing.
The utility model provides a kind of intellectual downhole choke device, comprises motor, reducer, shaft coupling, transmission switching mechanism, valve rod, throttle valve seat and spool; Wherein, throttle valve seat is connected with oil pipe by screw buckle, also can with the oil pipe integrated molding; Spool has the pyramid type front end and can seesaw to control the throttle valve seat aperture in throttle valve seat, thereby realize the adjusting to gas pressure in the oil pipe, motor, reducer, shaft coupling are linked in sequence, one end of valve rod is connected with spool, transmission switching mechanism is together in series axial organ and valve rod, and the circular motion of shaft coupling end output is converted to along the rectilinear motion of shaft length direction.
The utlity model has the throttling diameter of being convenient to regulate throttling arrangement and realize adjusting to flow area, and then reach the purpose of throttling step-down, have the characteristics of wide adaptability; In addition, can also match with aboveground PC and down-hole sensing and detecting system, realize the creation data of remote auto throttling control and monitoring throttling front and back.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model, as figure wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the throttle valve seat structural representation of down-hole of the present utility model mechanism.
Fig. 3 is the structural representation according to another exemplary embodiment of the present utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as Fig. 1, Fig. 2, shown in Figure 3, a kind of intellectual downhole choke device comprises valve rod 1, valve rod connecting cylinder 2, bearing support 3, feed screw nut Connection Block 4, feed screw nut connection cover 5, leading screw 6, shaft coupling 7 and motor and reductor integrated mechanism 8.
Specifically, motor and reductor integrated mechanism 8 are integrated by motor and the reducer supporting with it, and after receiving the signal that aboveground PC sends, motor just starts and rotates corresponding angle.
Motor is connected with leading screw 6 by shaft coupling 7 with the reducer of reductor integrated mechanism 8; Be provided with the feed screw nut that matches with leading screw 6 in the feed screw nut Connection Block 4;
Feed screw nut connection cover 5 tightens up feed screw nut;
Valve rod 1 is connected with valve rod connecting cylinder 2;
Valve rod connecting cylinder 2 is connected with bearing support 3;
Valve rod 1 and spool 9 link to each other with screw thread;
First sensor holder tube 11 is installed first pressure sensor and first temperature pick up;
The second sensor holder tube 16 is installed second pressure sensor and second temperature pick up;
Sealing drum 14 passes through seal receptacle 15 with cable and is connected.
First pressure sensor and first temperature pick up are one; Second pressure sensor and second temperature pick up also are one.
As shown in Figure 3, down-hole mechanism can comprise that first sensor holder tube 11, leading screw end sealing drum 12, Connection Block 13, motor side sealing drum 14, cable pass through seal receptacle 15 and the second sensor holder tube 16.
Wherein, first sensor holder tube 11 is used for installing can monitor the preceding gas pressure of throttling and first pressure sensor and first temperature pick up of temperature, and certain first pressure sensor and first temperature pick up also can become one;
The second sensor holder tube 16 is used for installing the gas pressure that can monitor after the throttling and second pressure sensor and second temperature pick up of temperature, and certain second pressure sensor and second temperature pick up also can become one.
Cable passes through seal receptacle 15 and is used for the motor cabling, and it links to each other by screw buckle with oil pipe 17.Motor side sealing drum 14 is connected cable by its tailing screw flight and passes through on the seal receptacle 15.Connection Block 13 can either couple together motor side sealing drum 14 and leading screw end sealing drum 12, also can be used in fixedly lead screw shaft bearing.Like this, whole sealing mechanism just passes through being connected of seal receptacle 15 by motor side sealing drum 14 and cable, is fixed on the correct position of oil pipe.
Like this, by the cooperation of feed screw nut Connection Block 4, feed screw nut connection cover 5, leading screw 6, hold-down nut only produces the displacement along oil pipe axial direction (that is shaft length direction) in the motion of circumferencial direction.Valve rod connecting cylinder 11 is used for connecting valve rod 1, and simultaneously by being threaded on the feed screw nut Connection Block 4 with transferring power, thereby valve rod 1 can be done rectilinear motion along the oil pipe axial direction.Valve rod 1 and spool 9 link to each other with screw thread, thus transmission of power to spool 9, regulating corresponding throttling parameter, thereby carry out throttle operation.The throttle valve seat 10 of downhole choke device and spool 9 formed an adjustable cone valve, and can be by the displacement of regulating spool 9, changes itself and the flow area of 10 of valve seats, thereby regulates the pressure of the natural gas that passes through oil pipe 17.Specifically, choke valve valve seat 10 can be made of one with oil pipe (that is, natural gas line), and also available screw is fixed on the oil pipe.The front end of spool 9 is the conical surface, and the rear end of spool 9 can have screw thread, is connected with valve rod with convenient, thereby accepts power to seesaw.Simultaneously, because spool 9 has convertibility, at different gas wells, just can only need to change spool 9, this have increased the versatility of total system greatly.The power of motor rotation generation will finally pass to throttling valve core by a series of component transmission in centre like this, produce the displacement of respective direction, change circulation area, obtain the desired pressure of exit system.
Embodiment 2: a kind of intellectual downhole choke device, and described device comprises motor, reducer, shaft coupling, transmission switching mechanism, valve rod, throttle valve seat and spool, wherein,
Described throttle valve seat and oil pipe integrated molding, spool has the pyramid type front end and can seesaw to control the throttle valve seat aperture in throttle valve seat, thereby realize the adjusting to gas pressure in the oil pipe, described motor, reducer, shaft coupling are linked in sequence, one end of valve rod is connected with spool, and described transmission switching mechanism is connected shaft coupling and the circular motion of shaft coupling can be converted to along the rectilinear motion of shaft length direction with valve rod.
Described transmission switching mechanism comprises leading screw and the nut Connection Block that is fitted to each other.
Described downhole choke device also comprises for the motor side sealing drum of sealed electric-motor, reducer and shaft coupling and for the sealing drum that seals described transmission switching mechanism, and the motor side sealing drum is connected by Connection Block with transmission switching mechanism end sealing drum.
Described downhole choke device comprises that also cable passes through seal receptacle, and described cable passes through that seal receptacle is connected with the motor side sealing drum and is used for the motor cabling.
Described downhole choke device also comprises first temperature pick up and first pressure sensor and second temperature pick up and second pressure sensor, described first temperature pick up and first pressure sensor are arranged on before the throttle valve seat temperature and pressure with the natural gas in the oil pipe before the monitoring throttling, described second temperature pick up and second pressure sensor be arranged on rear end that cable passes through seal receptacle with the monitoring throttling after the temperature and pressure of natural gas in the oil pipe.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (3)
1. an intellectual downhole choke device is characterized in that comprising valve rod, valve rod connecting cylinder, bearing support, feed screw nut Connection Block, feed screw nut connection cover, leading screw, shaft coupling and motor and reductor integrated mechanism;
Motor is connected with leading screw by shaft coupling with the reducer of reductor integrated mechanism; Be provided with the feed screw nut that matches with leading screw in the feed screw nut Connection Block;
The feed screw nut connection cover tightens up feed screw nut;
Valve rod is connected with the valve rod connecting cylinder;
The valve rod connecting cylinder is connected with bearing support;
Valve rod links to each other with the spool screw thread;
Throttle valve seat and spool are formed an adjustable cone valve, and spool can displacement, change the flow area of regulating spool and valve base chamber;
First sensor holder tube is installed first pressure sensor and first temperature pick up;
The second sensor holder tube is installed second pressure sensor and second temperature pick up;
Seal receptacle links to each other by screw buckle with oil pipe; The motor side sealing drum is connected cable by its tailing screw flight and passes through on the seal receptacle; Connection Block can either couple together motor side sealing drum and leading screw end sealing drum, also can be used in fixedly lead screw shaft bearing.
2. a kind of intellectual downhole choke device according to claim 1 is characterized in that first pressure sensor and first temperature pick up are one; Second pressure sensor and second temperature pick up also are one.
3. a kind of intellectual downhole choke device according to claim 1 and 2 is characterized in that bearing support is set to the form that matches with the feed screw nut connection cover, and is fixed on the leading screw end sealing drum;
The front end of spool is the conical surface, the rear end of spool or have screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100084 CN203230395U (en) | 2013-03-06 | 2013-03-06 | Intelligent downhole throttle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100084 CN203230395U (en) | 2013-03-06 | 2013-03-06 | Intelligent downhole throttle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230395U true CN203230395U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201320100084 Expired - Fee Related CN203230395U (en) | 2013-03-06 | 2013-03-06 | Intelligent downhole throttle device |
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| CN (1) | CN203230395U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196501A (en) * | 2014-03-03 | 2014-12-10 | 陕西延长石油(集团)有限责任公司研究院 | Automatic production allocation system for high and medium pressure gas fields |
| CN105089572A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Intelligent production adjusting method and device for gas wells |
| CN106769164A (en) * | 2016-11-18 | 2017-05-31 | 中国石油天然气股份有限公司 | A kind of borehole wall dirt thing sampling instrument |
| CN107035347A (en) * | 2017-05-11 | 2017-08-11 | 西安思坦仪器股份有限公司 | A kind of valve regulating system of underground throttle device |
| CN110017132A (en) * | 2019-05-24 | 2019-07-16 | 中国地质科学院地质力学研究所 | A kind of hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN110359888A (en) * | 2018-04-04 | 2019-10-22 | 中国石油天然气股份有限公司 | A kind of automatic regulating system and its operating method for underground throttle device |
| CN110469298A (en) * | 2019-09-19 | 2019-11-19 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | A kind of cage shell type underground throttle device based on wireless control |
| CN111691861A (en) * | 2020-06-24 | 2020-09-22 | 中国石油天然气股份有限公司 | Gas well downhole throttling, pressure measuring and water discharging integrated tool |
-
2013
- 2013-03-06 CN CN 201320100084 patent/CN203230395U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196501A (en) * | 2014-03-03 | 2014-12-10 | 陕西延长石油(集团)有限责任公司研究院 | Automatic production allocation system for high and medium pressure gas fields |
| CN104196501B (en) * | 2014-03-03 | 2017-01-25 | 陕西延长石油(集团)有限责任公司研究院 | Automatic production allocation system for high and medium pressure gas fields |
| CN105089572A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Intelligent production adjusting method and device for gas wells |
| CN106769164A (en) * | 2016-11-18 | 2017-05-31 | 中国石油天然气股份有限公司 | A kind of borehole wall dirt thing sampling instrument |
| CN106769164B (en) * | 2016-11-18 | 2023-10-31 | 中国石油天然气股份有限公司 | Well wall scale sampling tool |
| CN107035347A (en) * | 2017-05-11 | 2017-08-11 | 西安思坦仪器股份有限公司 | A kind of valve regulating system of underground throttle device |
| CN110359888A (en) * | 2018-04-04 | 2019-10-22 | 中国石油天然气股份有限公司 | A kind of automatic regulating system and its operating method for underground throttle device |
| CN110017132A (en) * | 2019-05-24 | 2019-07-16 | 中国地质科学院地质力学研究所 | A kind of hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN110017132B (en) * | 2019-05-24 | 2023-12-22 | 中国地质科学院地质力学研究所 | Hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN110469298A (en) * | 2019-09-19 | 2019-11-19 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | A kind of cage shell type underground throttle device based on wireless control |
| CN110469298B (en) * | 2019-09-19 | 2020-03-27 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Cage sleeve type underground throttle based on wireless control |
| CN111691861A (en) * | 2020-06-24 | 2020-09-22 | 中国石油天然气股份有限公司 | Gas well downhole throttling, pressure measuring and water discharging integrated tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 |