CN204851108U - Sleeve pipe trades set tieback ware that links closely - Google Patents

Sleeve pipe trades set tieback ware that links closely Download PDF

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Publication number
CN204851108U
CN204851108U CN201520488524.XU CN201520488524U CN204851108U CN 204851108 U CN204851108 U CN 204851108U CN 201520488524 U CN201520488524 U CN 201520488524U CN 204851108 U CN204851108 U CN 204851108U
Authority
CN
China
Prior art keywords
closely
joint
stop collar
sleeve pipe
adjusting part
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.)
Expired - Fee Related
Application number
CN201520488524.XU
Other languages
Chinese (zh)
Inventor
黄德辉
王玉忠
张建华
胡永雄
霍战海
单茂青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNPC Bohai Drilling Engineering Co Ltd
Original Assignee
CNPC Bohai Drilling Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CNPC Bohai Drilling Engineering Co Ltd filed Critical CNPC Bohai Drilling Engineering Co Ltd
Priority to CN201520488524.XU priority Critical patent/CN204851108U/en
Application granted granted Critical
Publication of CN204851108U publication Critical patent/CN204851108U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a sleeve pipe trades set tieback ware that links closely, including linking closely joint, stop collar and adjusting part, wherein: internal thread, right -hand member the external screw thread for be used for adapter sleeve of left end for being used for the jointed rod that links closely and connect, spacing ways is established link closely connect to go up and with it connects through threaded connection to link closely, and the direction of this screw thread with external screw thread opposite direction, the adjusting part is established including overlapping in proper order from left to right the upper cover, adjustable ring and the lower cover that link closely and connect, the left end top of adjusting part is in the right -hand member of stop collar, the right -hand member of adjusting part covers the predetermined length of external screw thread is with restriction sleeve pipe screw in the degree of depth that links closely and connect. In this technical scheme, cooperation through stop collar and adjusting part advances the adjusting bush screw thread length of screwing, prevents that casing thread from screwing completely to reduce the degree of difficulty that releases, improve the operating efficiency, reduce and trade the damage of set operation to casing thread.

Description

Sleeve pipe changes cover tieback and to link closely device
Technical field
The utility model relates to oil drilling equipment field, changes cover tieback to link closely device in particular to a kind of sleeve pipe.
Background technology
Oilfield oil well is after exploitation all the year round, and it is more that shallow-layer production string exists corrosion failure situation, needs to carry out cover milling and changes cover construction.
Current changes in cover construction technology, convenient and swiftly can not back out the above aid of more casing replacing after carrying out more casing replacing tieback work, dismounting effort, and often damages casing threads.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of operating efficiency sleeve pipe that is high, that can reduce casing threads damage to change cover tieback and to link closely device.
Therefore, the technical solution of the utility model is as follows:
A kind of sleeve pipe changes cover tieback and to link closely device, comprises the joint that links closely, stop collar and adjusting part, wherein:
The left end of the described joint that links closely is be external screw thread for splicing sleeve for the internal thread of jointed rod, right-hand member;
To link closely described in described stop collar is set on joint and to be threaded connection with the described joint that links closely, and the direction of this screw thread is contrary with described external screw thread direction;
Described adjusting part comprise be set in successively from left to right described in the upper cover, adjustable ring and the lower cover that link closely on joint, the left end of described adjusting part withstands on the right-hand member of described stop collar, the right-hand member of described adjusting part cover length that described external screw thread presets screw in limiting boot described in link closely the degree of depth of joint.
In this technical scheme, shift to an earlier date adjusting sleeve gas thread by the cooperation of stop collar and adjusting part and screw length, prevent casing threads from screwing completely, thus reduce the difficulty that releases, improve operating efficiency, reduce and change cover operation to the damage of casing threads.
Further, between described upper cover and described adjustable ring, between described lower cover and described adjustable ring, be linear contact lay, adopt cross section to be circular, oval or oblong adjustable ring, can low friction resistance be fallen, be convenient to shackle.
Further, the outer wall of the described joint that links closely is formed with a limited step, the inwall of described stop collar is provided with an interior step coordinated with described limited step, link closely in joint described in described stop collar is inserted in from left to right, when described stop collar screws in completely, described interior step is pressed on described limited step.
Further, described in link closely joint outer wall on be installed with multiple ear handle, can assist and carry out tool ejector, improve removal efficiency.The quantity of described ear handle can be four, is uniformly distributed in the surrounding of the described joint that links closely.
Change cover tieback by the sleeve pipe in the utility model to link closely device, can guarantee that the safe and efficient sleeve pipe that carries out links closely; Utilize linear contact lay principle, greatly overcome mill resistance, be convenient to shackle; Adjusting sleeve gas thread screws length in advance, is beneficial to and releases; Four ear handles on instrument can be assisted and be carried out tool ejector; Ensure that the sleeve pipe of replacing links closely, shackle time process safety and fast effective.
Accompanying drawing explanation
Fig. 1 changes cover tieback according to the sleeve pipe of the utility model embodiment to link closely the structural representation of device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, change cover tieback according to the sleeve pipe of embodiment of the present utility model and to link closely device, comprise the joint 1 that links closely, stop collar 3 and adjusting part, wherein:
The left end of the described joint 1 that links closely is be external screw thread for splicing sleeve for the internal thread of jointed rod, right-hand member;
To link closely described in described stop collar 3 is set on joint 1 and to be threaded connection with the described joint 1 that links closely, and the direction of this screw thread is contrary with described external screw thread direction;
Described adjusting part comprise be set in successively from left to right described in the upper cover 4, adjustable ring 5 and the lower cover 6 that link closely on joint 1, the left end of described adjusting part withstands on the right-hand member of described stop collar 3, the right-hand member of described adjusting part cover length that described external screw thread presets screw in limiting boot described in link closely the degree of depth of joint 1.
In this technical scheme, shift to an earlier date adjusting sleeve gas thread by the cooperation of stop collar 3 and adjusting part and screw length, prevent casing threads from screwing completely, thus reduce the difficulty that releases, improve operating efficiency, reduce and change cover operation to the damage of casing threads.
Further, between described upper cover 4 and described adjustable ring 5, between described lower cover 6 and described adjustable ring 5, be linear contact lay, adopt cross section to be circular, oval or oblong adjustable ring 5, can low friction resistance be fallen, be convenient to shackle.
Further, the outer wall of the described joint 1 that links closely is formed with a limited step 7, the inwall of described stop collar 3 is provided with an interior step 8 coordinated with described limited step 7, link closely described in described stop collar 3 is inserted in from left to right in joint 1, when described stop collar 3 screws in completely, described interior step 8 is pressed on described limited step 7.
Further, described in link closely joint 1 outer wall on be installed with multiple ear handle 2, can assist and carry out tool ejector, improve removal efficiency.The quantity of described ear handle 2 can be four, is uniformly distributed in the described surrounding linking closely joint 1.
Use the sleeve pipe in the utility model to change cover tieback and link closely that to carry out changing cover operation idiographic flow as follows for device:
Step 1, changes the length of cover needed for adjusting;
Step 2, changes the link closely left end of device of cover tieback sleeve pipe and is connected with kelly bar;
Step 3, sleeve pipe is changed the link closely right-hand member of device of cover tieback and is connected with casing string, unclamping a button after the thin tight degree foundation casing threads hand Screw of connection is principle;
Step 4, start driven by rotary disc kelly bar and give sleeve pipe and change the cover tieback institute's casing replacing in device and well that links closely and implement tightening torque, it is qualified for reaching well inner sleeve tubing string required torque.
Step 5, clear water pressure testing guarantees that tie-back casing sealing performance meets design requirement.
Step 6, welding ring shape steel plate and new casing replacing well head box cupling soffit, play the object that load-bearing is firm.
Step 7, utilizes chain wrench reversion stop collar 3, makes stop collar 3 move back button and (if chain wrench can not be dismantled, performs step 8.
Step 8, utilizes hammer, pounds counterclockwise and hits ear handle 2, makes stop collar 3 move back button.
Step 9, while stop collar 3 moves back button, synchronously realizes upper cover 4, spherical adjustment ring 5, lower cover 6 is in and is released into loosening, can dismantle by hand and change cover and to link closely device instrument.
Change cover tieback by the sleeve pipe in the utility model to link closely device, can guarantee that the safe and efficient sleeve pipe that carries out links closely; Utilize linear contact lay principle, greatly overcome mill resistance, be convenient to shackle; Adjusting sleeve gas thread screws length in advance, is beneficial to and releases; Four ear handles on instrument can be assisted and be carried out tool ejector; Ensure that the sleeve pipe of replacing links closely, shackle time process safety and fast effective.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.

Claims (5)

1. sleeve pipe changes cover tieback and to link closely a device, it is characterized in that, comprises the joint that links closely (1), stop collar (3) and adjusting part, wherein:
The left end of the described joint that links closely (1) is be external screw thread for splicing sleeve for the internal thread of jointed rod, right-hand member;
The joint (1) that links closely described in described stop collar (3) is set in is gone up and is threaded connection with the described joint that links closely (1), and the direction of this screw thread is contrary with described external screw thread direction;
Described adjusting part comprise be set in successively from left to right described in the upper cover (4), adjustable ring (5) and the lower cover (6) that link closely on joint (1), the left end of described adjusting part withstands on the right-hand member of described stop collar (3), and the right-hand member of described adjusting part covers the default length of described external screw thread with the degree of depth of joint (1) of linking closely described in limiting boot screw-in.
2. sleeve pipe according to claim 1 changes cover tieback and to link closely device, it is characterized in that, between described upper cover (4) and described adjustable ring (5), between described lower cover (6) and described adjustable ring (5), be linear contact lay.
3. sleeve pipe according to claim 1 changes cover tieback and to link closely device, it is characterized in that, the outer wall of the described joint that links closely (1) is formed with a limited step (7), the inwall of described stop collar (3) is provided with an interior step (8) coordinated with described limited step (7), link closely in joint (1) described in described stop collar (3) is inserted in from left to right, when described stop collar (3) screws in completely, described interior step (8) is pressed on described limited step (7).
4. sleeve pipe according to any one of claim 1 to 3 changes cover tieback and to link closely device, it is characterized in that, described in link closely joint (1) outer wall on be installed with multiple ear handle (2).
5. sleeve pipe according to claim 4 changes cover tieback and to link closely device, and it is characterized in that, the quantity of described ear handle (2) is four, is uniformly distributed in the surrounding of the described joint that links closely (1).
CN201520488524.XU 2015-07-08 2015-07-08 Sleeve pipe trades set tieback ware that links closely Expired - Fee Related CN204851108U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520488524.XU CN204851108U (en) 2015-07-08 2015-07-08 Sleeve pipe trades set tieback ware that links closely

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520488524.XU CN204851108U (en) 2015-07-08 2015-07-08 Sleeve pipe trades set tieback ware that links closely

Publications (1)

Publication Number Publication Date
CN204851108U true CN204851108U (en) 2015-12-09

Family

ID=54741666

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520488524.XU Expired - Fee Related CN204851108U (en) 2015-07-08 2015-07-08 Sleeve pipe trades set tieback ware that links closely

Country Status (1)

Country Link
CN (1) CN204851108U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110439483A (en) * 2018-05-04 2019-11-12 中国石油天然气股份有限公司 Casing connection device and casing connection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110439483A (en) * 2018-05-04 2019-11-12 中国石油天然气股份有限公司 Casing connection device and casing connection method

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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: 20151209

Termination date: 20210708