CN202560129U

CN202560129U - Petroleum casing engaging device

Info

Publication number: CN202560129U
Application number: CN 201220155925
Authority: CN
Inventors: 李超; 苏金洋; 王海东; 薛自建; 吴建文; 花志斌; 范玉伟; 杨富荣; 姚舜鹏; 石运超
Original assignee: HG TUBULARS Ltd; CNPC Bohai Equipment Manufacturing Co Ltd
Current assignee: HG TUBULARS Ltd; CNPC Bohai Equipment Manufacturing Co Ltd
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2012-11-28
Anticipated expiration: 2022-04-13

Abstract

The utility model discloses a petroleum casing engaging device, which is an axial split type structure, and has an assembly formed of connecting pieces. The assembly comprises a guide tube and a positioning tube at the lower end of the guide tube. The guide tube and positioning tube are coaxial. The guide tube has inner diameter matched with outer diameter of the casing. The positioning tube has inner diameter matched with outer diameter of a casing coupling, and is provided at the upper end with a clamp ring which has inner diameter smaller than that of the positioning tube and larger than the outer diameter of the casing. The petroleum casing engaging device disclosed by the utility model has the features of simple structure, high convenience in operation, high accuracy in engagement, etc.

Description

A kind of petroleum casing pipe is to buckle device

Technical field

The utility model relates to a kind of pipeline make-up linkage, especially a kind of oil drilling process middle sleeve make-up linkage.

Background technology

Domestic and international most of drilling team all takes direct make-up, cased operating type in work progress, lean on experience and proficiency to fulfil assignment by the workman of drilling team.At the scene under the influence of environment, derrick body construction, the workman can not guarantee a make-up success, and the thread alternating phenomenon takes place when make-up occurring often, gently then causes the screw thread damage, heavy then cause that screw thread comes off, situation that thread gluing etc. causes sleeve pipe to be scrapped.The thread alternating situation takes place during make-up to be increased labour intensity, in the activity duration, is also bringing direct economic loss.

The utility model content

Characteristics such as the technical problem that the utility model will solve provides a kind of petroleum casing pipe to buckle device, and it has simple in structure, and easy to operate, make-up is accurate.

For solving the problems of the technologies described above; The technical scheme that the utility model is taked is: it is axial split-type structural, constitutes assembly by connector, and its assembly comprises the positioning pipe of guide pipe and its lower end; Guide pipe and positioning pipe concentric, the internal diameter of guide pipe and the external diameter of sleeve pipe are suitable; The internal diameter of positioning pipe and casing coupling external diameter are suitable, are provided with block card in the upper end of positioning pipe 4.

The utility model further improves and is: the upper end of guide pipe is provided with conical pipe; Be provided with floor between guide pipe and the positioning pipe, floor is fixedly connected on the outer wall of guide pipe and positioning pipe; The connected mode of connector is that an end hinge connects, and other end bayonet lock connects; The snap ring 7 of the block card of the upper end of positioning pipe for being connected with positioning pipe.

Adopt the beneficial effect that technique scheme produced to be: this device is simple and practical; Can guarantee the make-up quality of sleeve pipe effectively; The screw thread of avoiding just not causing because of the sleeve pipe make-up damages, and connector adopts an end hinge to connect other end bayonet lock ways of connecting; Can make things convenient for the dismounting in use of this device, increase work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the half sectional view of Fig. 1.

In the accompanying drawings: 1, conical pipe; 2, guide pipe; 3, floor; 4, positioning pipe; 5, bearing pin connector; 6, bayonet lock connector; 7, snap ring.

The specific embodiment

Embodiment by shown in Fig. 1-3 can know that it is axial split-type structural, constitutes assembly by connector, and its assembly comprises the positioning pipe 4 of guide pipe 2 and its lower end, guide pipe 2 and positioning pipe 4 concentrics, and the internal diameter of guide pipe 2 and the external diameter of sleeve pipe are suitable; The internal diameter of positioning pipe 4 and casing coupling external diameter are suitable, are provided with block card in the upper end of positioning pipe 4; The upper end of guide pipe 2 is provided with conical pipe 1; Be provided with floor 3 between guide pipe 2 and the positioning pipe 4, floor 3 is fixedly connected on the outer wall of guide pipe 2 and positioning pipe 4; In order in use to be convenient to dismounting, connected mode adopts an end hinge to connect, and other end bayonet lock connects; Owing to be that non-securing member connects, therefore must be provided with the block card of its downward landing, block card is located at the upper end of positioning pipe 4, and its inside projection can not influence the entering of sleeve pipe, can adopt the snap ring 7 that is connected with positioning pipe 4.

Method for using:

After last sleeve pipe gone into the well; Fixed by slips, then positioning pipe is felt relieved on casing coupling through the connector hoop, the snap ring of positioning pipe upper end can prevent its downward landing; Give the public end of next root sleeve pipe to get into guide pipe then, accomplish centering with last sleeve pipe through conical pipe; The operating personnel can observe sleeve pipe make-up and last button situation through the space between the floor, accomplishes make-up and last button work, will pull down buckle device afterwards, carry out next root sleeve pipe to buckling button.Replace visual, manual make-up mode owing to adopt mechanical device to carry out make-up, thereby shortened the activity duration, avoid damaging and going up button and damage because of the screw thread that the sleeve pipe make-up is not just causing.

Claims

1. a petroleum casing pipe is to buckle device; It is characterized in that: it is axial split-type structural; Constitute assembly by connector; Its assembly comprises the positioning pipe (4) of guide pipe (2) and its lower end, said guide pipe (2) and positioning pipe (4) concentric, and the internal diameter of said guide pipe (2) and the external diameter of sleeve pipe are suitable; The internal diameter and the casing coupling external diameter of said positioning pipe (4) are suitable, are provided with block card in the upper end of positioning pipe (4).

2. a kind of petroleum casing pipe according to claim 1 is characterized in that to buckle device the upper end of said guide pipe (2) is provided with conical pipe (1).

3. a kind of petroleum casing pipe according to claim 2 is characterized in that being provided with floor (3) between said guide pipe (2) and the positioning pipe (4) to buckle device, and said floor (3) is fixedly connected on the outer wall of guide pipe (2) and positioning pipe (4).

4. a kind of petroleum casing pipe according to claim 3 is to buckle device, and the connected mode that it is characterized in that said connector is that an end hinge connects, and other end bayonet lock connects.

5. a kind of petroleum casing pipe according to claim 4 is characterized in that the snap ring (7) of block card for being connected with positioning pipe (4) of the upper end of said positioning pipe (4) to buckle device.