CN104265236A - Ball injector for hanging drilling liner cementing tail pipe base and control method thereof - Google Patents
Ball injector for hanging drilling liner cementing tail pipe base and control method thereof Download PDFInfo
- Publication number
- CN104265236A CN104265236A CN201410361762.4A CN201410361762A CN104265236A CN 104265236 A CN104265236 A CN 104265236A CN 201410361762 A CN201410361762 A CN 201410361762A CN 104265236 A CN104265236 A CN 104265236A
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- CN
- China
- Prior art keywords
- piston
- cylinder
- tail pipe
- reservoir body
- ball injector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
Abstract
The invention discloses a ball injector for hanging a drilling liner cementing tail pipe base and a control method thereof, and belongs to the technical field of petroleum and natural gas production. The ball injector comprises an assembly sleeve and a cavity body, wherein the cavity body is arranged in the assembly sleeve to form an accommodating cavity; screws arranged on the cavity body outwards penetrate through the cavity body from the inner of the accommodating cavity, and are connected with a reciprocating pushing mechanism; a plurality of brackets positioned in the accommodating cavity are arranged on the cavity body, and are provided with keeping jaws; and the ends of the screws and the keeping jaws fit to grab base hanging balls in the accommodating cavity. The ball injector is mainly used for solving the problem of temporary fault of remote control of a ball injector in the prior art, has no need to renewedly unload a cement head for manual ball injection, and guarantees the reliability of ball injection and well cementing operation.
Description
Technical field
The present invention relates to oil, natural gas extraction technical field, ball injector during especially a kind of rotary tail well cementation on rotary cement head.
Background technology
Well cementation, utilize exactly cementing equipment under to enter in the Oil/gas Well of sleeve pipe casing annulus cementing, make between sleeve pipe and stratum, to produce effective sealing.Need to use extension hanger in this process to be connected with upper strata sleeve pipe by tail pipe (sleeve pipe), most of tail pipe is hung and can be put mechanism according to its seat and classify, or puts formula for hydraulic seat, or puts formula for mechanical block.Hydraulic seat puts seat that formula tail pipe hangs, and to put mechanism be that the fluid pressure difference of hydraulic cylinder in profit is hung by tail pipe realizes seat and puts.Hang over unexpected seat in the process transferred to hang to prevent tail pipe, hydraulic cylinder can be sheared pin and be fixed up.Circulating pressure be under normal circumstances only that seat bleeds off pressure power 50%.The seat generally hung according to tail pipe puts program to be needed by ground pitching, makes ball drop on support hoop, and by the shake-up hydraulic cylinder that builds the pressure, the gravity then discharging tail pipe extension realizes seat and puts.
The reinforcing oil well pitching operation of current land mainly disconnects the artificial pitching of pipeloop, operational security is not high, the rotary cement used of offshore oilfield and oil field, minority land is first well matchedly has ball injector, but ball injector be pneumatic mostly or the Long-distance Control form of hydrodynamic or pure manually, if encounter this kind of ball injector section Long-distance Control when losing efficacy temporarily, must obtain and again cementing head be unloaded manual pitching, cause temporal waste.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of drilling liner cementing tail pipe seat extension ball injector that can match with cementing head and control method thereof are provided, be mainly used in solving ball injector in prior art and there is the problem that Long-distance Control lost efficacy temporarily, without the need to again cementing head being unloaded manual pitching, ensure the reliability of pitching and well cementing operation.This ball injector both can be arranged on general cementing head, can be arranged on again on Long-distance Control rotary cement head and to link control system to realize Long-distance Control, and can manually control again, simple to operate, the scope of application is wide.
The technical solution used in the present invention is as follows:
Drilling liner cementing tail pipe seat extension ball injector of the present invention, comprises assembly set and reservoir body; Described reservoir body is located in assembly set and is formed container cavity; The screw that described reservoir body is arranged, passes outwards through reservoir body and is connected with reciprocal delivery device in container cavity; Described reservoir body is provided with the multiple supports being positioned at container cavity, and described support is provided with holding claws, and end and the holding claws of described screw coordinate jointly catches seat to hang ball in container cavity.
Owing to have employed said structure, container cavity can be used for containing seat and hangs ball, wherein firmly grasped by multiple holding claws in container cavity, it is avoided to skid off from container cavity, the end of the screw that reservoir body is passed hangs ball for push block, is connected to by screw rod on reciprocal delivery device, controls the movement of screw rod by reciprocal delivery device, realize the control of seat being hung to ball, also also can manually control by Long-distance Control.Ball injector can be fixed on Long-distance Control rotary cement head by assembly set by the present invention, and pneumatic inlet connects the control system of cementing head, realizes Long-distance Control, also can manually control.By drilling liner cementing tail pipe seat extension ball injector of the present invention, being mainly used in solving ball injector in prior art and there is the problem that Long-distance Control lost efficacy temporarily, without the need to again cementing head being unloaded manual pitching, ensureing the reliability of pitching and well cementing operation.This ball injector both can be arranged on general cementing head, can be arranged on again on Long-distance Control rotary cement head and to link control system to realize Long-distance Control, and can manually control again, simple to operate, the scope of application is wide.
Drilling liner cementing tail pipe seat extension ball injector of the present invention, described support is 4, wherein each support is equipped with holding claws, and the middle part of wherein said holding claws is bolted on support, and the two ends of holding claws can be swung centered by bolt.
Owing to have employed said structure, 4 supports are respectively arranged with holding claws, 4 holding claws coordinate jointly with the end of screw, promptly seat extension ball avoids it to roll out from assembly set, and wherein screw end circumference is by the contact with holding claws, holding claws left end is opened and right-hand member closes, when screw is pushed the ball, decontroled the left end of holding claws open, and then holding claws right-hand member is pushed by ball, ball moves right certain distance again and just can fall into well and suffered.
Drilling liner cementing tail pipe seat extension ball injector of the present invention, described reciprocal delivery device comprises the cylinder be threaded with assembly set, and described reservoir body is fixedly connected on cylinder, be configured with in described cylinder can opposing seal slide piston; Being provided with in described piston can the balance nut of relative sliding, described piston one end is fixedly connected with screw, the other end of described piston to be threaded jackscrew by balance nut, and described jackscrew passes from the end face of cylinder, is provided with the spring being placed on screw between described piston and reservoir body.
Owing to have employed said structure, by rotating jackscrew, owing to being be threaded between jackscrew with balance nut, balance nut and piston are all by hub-like male cooperation between piston and cylinder, circumference can not be there is rotate, therefore when rotating jackscrew, balance nut and piston can move right, thus drive screw seat to be hung ball release, complete back piston by reversion jackscrew and spring reset, thus guarantee manually operatedly normally to carry out.
Drilling liner cementing tail pipe seat extension ball injector of the present invention, described piston inner wall is provided with chute in the axial direction, described balance nut outer wall is provided with the slide block gone up in the axial direction, the slide block on described balance nut is mated and can relative sliding with the chute on piston; The groove that described cylinder inner wall is provided with, the outer wall of described piston near reservoir body one end is provided with projection, and the projection on described piston and the matching grooves on cylinder also can relative slidings.
Owing to have employed said structure, projection (being also slide block and chute) respectively by hub-like between balance nut with piston, between piston with cylinder coordinates, make it that circumference can not occur each other to rotate, only can relative sliding, when Non-follow control jackscrew rotates, balance nut driven plunger can be made relative to cylinder slide, thus complete pitching operation; When long-range pneumatic control, piston can be made relative to cylinder slide, thus complete pitching operation, therefore just can guarantee normally carrying out of pitching work, make operation very easy.
Drilling liner cementing tail pipe seat extension ball injector of the present invention, described cylinder is provided with import on the sidewall of end face, and the groove on described cylinder sidewall is provided with free export.
Owing to have employed said structure, the groove on cylinder sidewall is provided with free export, and the cylinder outlet also namely on the right of piston arranges a free export, can avoid the swabbing effect produced on the right of piston movement process cylinder; Import then can connect in the control system of cementing head, is convenient to by long-range pneumatic control, when also namely adopting the Long-distance Control such as pneumatic, control medium enters from import, promotion piston moves right, thus drives screw seat to be hung ball release, completes back piston by spring reset.
Drilling liner cementing tail pipe seat extension ball injector of the present invention, the junction of described cylinder and assembly set is provided with to compensate to be overlapped.
Owing to have employed said structure, compensate cover and can be used for compensating the gap produced between cylinder and assembly set, avoid the reasons such as mismachining tolerance to cause the problem cannot fixed between cylinder and assembly set.
The control method of drilling liner cementing tail pipe seat extension ball injector of the present invention, is characterized in that: it comprises:
1), Long-distance Control
Assembly set be fixed on Long-distance Control rotary cement head, import is connected to the control pipeline of cementing head, control medium enters in cylinder from import, promote piston movement, piston driving screw moves relative to reservoir body, makes the end of screw act on seat and hangs ball, and released; After completing, piston resets under the action of the spring;
2), Non-follow control
Disconnect the control pipeline that import connects, rotate jackscrew, make balance nut drive piston movement, piston driving screw moves relative to reservoir body, makes the end of screw act on seat and hangs ball, and released; Complete hand, counter-rotation jackscrew, piston resets under the action of the spring.
Owing to have employed said method, make ball injector of the present invention can be arranged on general cementing head, both also can be arranged on Long-distance Control rotary cement head and to have linked control system and realize Long-distance Control, also can manually control, efficiently solve the problem that above-mentioned Long-distance Control lost efficacy temporarily, ensure that the reliability of pitching and well cementing operation.Even if Long-distance Control lost efficacy, also can manually control realization its operation, without the need to again cementing head being unloaded manual pitching, cause temporal waste.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, drilling liner cementing tail pipe seat extension ball injector of the present invention, being mainly used in solving ball injector in prior art and there is the problem that Long-distance Control lost efficacy temporarily, without the need to again cementing head being unloaded manual pitching, ensureing the reliability of pitching and well cementing operation.
2, drilling liner cementing tail pipe seat extension ball injector of the present invention, can be arranged on general cementing head, can be arranged on again on Long-distance Control rotary cement head and to link control system and realize Long-distance Control, can manually control again, simple to operate, the scope of application is wide.
3, the control method of drilling liner cementing tail pipe seat extension ball injector of the present invention, even if Long-distance Control lost efficacy, also can manually control realization its operation, without the need to again cementing head being unloaded manual pitching, cause temporal waste.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of drilling liner cementing tail pipe seat extension ball injector of the present invention.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 is the B-B sectional view in Fig. 1.
Fig. 4 is the C-C sectional view in Fig. 1.
In figure: 1-jackscrew, 2-shaft block ring, 3,6,15-seal combination, 4-import, 5-cylinder, 7-balance nut, 8-piston, 9-spring, 10-free export, 11-screw, 12-compensates cover, 13-screw, 14-sealing ring, 16-dust ring, 17-reservoir body, 18-holding claws, 19-packing ring, 20-bolt combination, 21-assembly set, 22-seat hangs ball.
Detailed description of the invention
All features disclosed in this manual, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this manual (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
As shown in Figures 1 to 4, drilling liner cementing tail pipe seat extension ball injector of the present invention, comprises assembly set 21 and reservoir body 17, described reservoir body 17 is located in assembly set 21 and is formed container cavity, the screw 11 that described reservoir body 17 is arranged, in container cavity, pass outwards through reservoir body 17 and be connected with reciprocal delivery device, described reciprocal delivery device comprises the cylinder 5 be threaded with assembly set 21, described cylinder 5 is provided with the junction of assembly set 21 and compensates cover 12, described reservoir body 17 is fixedly connected on cylinder 5, be configured with in described cylinder 5 can opposing seal slide piston 8, the groove that described cylinder 5 inwall is provided with, the outer wall of described piston 8 near reservoir body 17 one end is provided with projection, projection on described piston 8 and the matching grooves on cylinder 5 also can relative slidings, being provided with in described piston 8 can the balance nut 7 of relative sliding, described piston 8 inwall is provided with chute in the axial direction, described balance nut 7 outer wall is provided with the slide block gone up in the axial direction, the slide block on described balance nut 7 is mated and can relative sliding with the chute on piston 8, described piston 8 one end is fixedly connected with screw 11, and the other end of described piston 8 to be threaded jackscrew 1 by piston 8, and described jackscrew 1 passes from the end face of cylinder 5, is provided with the spring 9 be placed on outside jackscrew 1 between described piston 8 and reservoir body 17, described cylinder 5 is provided with import 4 on the sidewall of end face, and the groove on described cylinder 5 sidewall is provided with free export 10, described reservoir body 17 is provided with multiple (can be set to more than three the as required) support being positioned at container cavity, described support is adopted to be 4 in this example, wherein each support is equipped with holding claws 18, the middle part of wherein said holding claws 18 is bolted on support, the two ends of holding claws 18 can be swung centered by bolt, the end of described screw 11 coordinates jointly with holding claws 18 catches seat to hang ball 22 in container cavity, as required when seat extension ball 22 volume is larger, it can lower than on the end of screw 11.Wherein screw end circumference is by the contact with holding claws, and holding claws left end is opened and right-hand member closes, when screw is pushed the ball, decontroled the left end of holding claws open, and then holding claws right-hand member is pushed by ball, ball moves right certain distance again and just can fall into well and suffered.
Particularly, with reference to accompanying drawing 1, when drilling liner cementing tail pipe seat extension ball injector of the present invention is driven by pneumatic remote controlled manner such as grade, flow media enters cylinder 5 by import 4, thus promote piston 8 and drive screw 11 to move right, thus seat is hung ball 22 and release, complete back piston and rely on spring 9 to reset.
With reference to accompanying drawing 1,2,3, in drilling liner cementing tail pipe seat extension ball injector of the present invention between jackscrew 1 and balance nut 7 by being threaded, balance nut 7 and piston 8, be that hub-like coordinates and makes balance nut 7 and piston 8 not to rotate motion between piston 8 with cylinder 5.During manual actuation, disconnect import 4 place pipeline, rotate jackscrew 1 and drive balance nut 7 to move right together with piston 8, thus drive screw 11 seat to be hung ball 22 to release, complete back piston 8 and rely on reversion jackscrew 1 and spring 9 to reset.
With reference to accompanying drawing 1,4, drilling liner cementing tail pipe seat extension ball injector holding claws 18 of the present invention is bolted on the support of reservoir body 17, and holding claws 18 can around screws.Shift piston 8 onto low order end, holding claws 18 can freely be rotated, this can put into seat from ball injector right-hand member to hang ball 22, rotates jackscrew 1 afterwards and screw 11 is retracted to high order end and blocks holding claws 18 left end holding claws right-hand member is drawn, prevent seat extension ball from automatically dropping out.
With reference to accompanying drawing 1, the cylinder 5 of drilling liner cementing tail pipe seat extension ball injector of the present invention has import 4 and free export 10 two holes, and import 4 connects remote boot server pipeline, and free export 10 is used for the swabbing effect avoided on the right of cylinder.
Drilling liner cementing tail pipe seat extension ball injector of the present invention, being mainly used in solving ball injector in prior art and there is the problem that Long-distance Control lost efficacy temporarily, without the need to again cementing head being unloaded manual pitching, ensureing the reliability of pitching and well cementing operation.Can be arranged on general cementing head, can be arranged on again on Long-distance Control rotary cement head and to link control system and realize Long-distance Control, can manually control again, simple to operate, the scope of application is wide.
The control method of drilling liner cementing tail pipe seat extension ball injector of the present invention, comprising:
1), during Long-distance Control, assembly set 21 is fixed on Long-distance Control rotary cement head, import 4 is connected to the control pipeline of cementing head, control medium enters in cylinder 5 from import 4, promote piston 8 to move, piston 8 drives screw 11 to move relative to reservoir body 17, makes the end of screw 11 act on seat and hangs ball 22, and released; After completing, piston 8 resets under spring 9 acts on; Wherein in whole process, medium can not be discharged from free export 10, and when piston 8 reaches least significant, its left side sealing ring can not exceed the starting position of cylinder groove; Free export 10 is just in order to prevent the cavity generation swabbing action of piston right-hand member from establishing, because do not have free export, this cavity is exactly a confined space, is unfavorable for the reciprocating motion of piston.
2), Non-follow control time, disconnect the control pipeline that import 4 connects, rotate jackscrew 1, make balance nut 7 drive piston 8 to move, piston 8 drives screw 11 to move relative to reservoir body 17, makes the end of screw 11 act on seat and hangs ball 22, and released; Complete hand, counter-rotation jackscrew 1, piston 8 resets under spring 9 acts on.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (7)
1. drilling liner cementing tail pipe seat extension ball injector, is characterized in that: it comprises assembly set (21) and reservoir body (17); Described reservoir body (17) is located in assembly set (21) and is formed container cavity; The upper screw (11) arranged of described reservoir body (17), passes outwards through reservoir body (17) and is connected with reciprocal delivery device in container cavity; Described reservoir body (17) is provided with the multiple supports being positioned at container cavity, and described support is provided with the holding claws (18) of coupling mutually, and the end of described screw (11) coordinates jointly with holding claws (18) catches seat to hang ball (22) in container cavity.
2. drilling liner cementing tail pipe seat extension ball injector as claimed in claim 1, it is characterized in that: described support is 4, wherein each support is equipped with holding claws (18), the middle part of wherein said holding claws (18) is bolted on support, and the two ends of holding claws (18) can be swung centered by bolt.
3. drilling liner cementing tail pipe seat extension ball injector as claimed in claim 1 or 2, it is characterized in that: described reciprocal delivery device comprises the cylinder (5) be threaded with assembly set (21), described reservoir body (17) is fixedly connected on cylinder (5), be configured with in described cylinder (5) can opposing seal slide piston (8); Being provided with in described piston (8) can the balance nut (7) of relative sliding, described piston (8) one end is fixedly connected with screw (11), the other end of described piston (8) to be threaded jackscrew (1) by balance nut (7), described jackscrew (1) passes from the end face of cylinder (5), is provided with and is placed on screw (11) spring outward (9) between described piston (8) and reservoir body (17).
4. drilling liner cementing tail pipe seat extension ball injector as claimed in claim 3, it is characterized in that: described piston (8) inwall is provided with chute in the axial direction, described balance nut (7) outer wall is provided with the slide block gone up in the axial direction, the slide block on described balance nut (7) is mated and can relative sliding with the chute on piston (8); The groove that described cylinder (5) inwall is provided with, described piston (8) is provided with projection near the outer wall of reservoir body (17) one end, and the projection on described piston (8) also can relative sliding with the matching grooves on cylinder (5).
5. drilling liner cementing tail pipe seat extension ball injector as claimed in claim 4, is characterized in that: on the sidewall of the upper close end face of described cylinder (5), be provided with import (4), the groove on described cylinder (5) sidewall is provided with free export (10).
6. the drilling liner cementing tail pipe seat extension ball injector as described in claim 1 or 2 or 4 or 5, is characterized in that: described cylinder (5) is provided with to compensate with the junction of assembly set (21) and overlaps (12).
7. adopt a control method for drilling liner cementing tail pipe seat extension ball injector described in claim 5, it is characterized in that: it comprises:
Long-distance Control: assembly set (21) is fixed on Long-distance Control rotary cement head, import (4) is connected to the control pipeline of cementing head, control medium enters in cylinder (5) from import (4), promote piston (8) motion, piston (8) drives screw (11) to move relative to reservoir body (17), make the end of screw (11) act on seat and hang ball (22), and released; After completing, piston (8) resets under spring (9) effect;
Non-follow control: disconnect the upper control pipeline connected of import (4), rotate jackscrew (1), balance nut (7) is made to drive piston (8) motion, piston (8) drives screw (11) to move relative to reservoir body (17), make the end of screw (11) act on seat and hang ball (22), and released; After completing, counter-rotation jackscrew (1), piston (8) resets under spring (9) effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361762.4A CN104265236B (en) | 2014-07-28 | Drilling liner cementing tail pipe seat extension ball injector and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361762.4A CN104265236B (en) | 2014-07-28 | Drilling liner cementing tail pipe seat extension ball injector and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265236A true CN104265236A (en) | 2015-01-07 |
| CN104265236B CN104265236B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321011A (en) * | 2015-06-17 | 2017-01-11 | 中国石油化工股份有限公司 | Pneumatic control system used for controlling cementing tools remotely |
| CN109262532A (en) * | 2018-09-19 | 2019-01-25 | 芜湖市星东塑胶模具制品有限公司 | A kind of compressor muffler snake bend assembly tooling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321011A (en) * | 2015-06-17 | 2017-01-11 | 中国石油化工股份有限公司 | Pneumatic control system used for controlling cementing tools remotely |
| CN106321011B (en) * | 2015-06-17 | 2019-01-04 | 中国石油化工股份有限公司 | It is a kind of for remotely controlling the atmospheric control of cementing tool |
| CN109262532A (en) * | 2018-09-19 | 2019-01-25 | 芜湖市星东塑胶模具制品有限公司 | A kind of compressor muffler snake bend assembly tooling |
| CN109262532B (en) * | 2018-09-19 | 2022-08-02 | 芜湖市星东塑胶模具制品有限公司 | Snake-shaped bent pipe assembling tool for compressor silencer |
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