CN210685895U

CN210685895U - Slip-free hanger

Info

Publication number: CN210685895U
Application number: CN201921191235.8U
Authority: CN
Inventors: 王首强
Original assignee: Beijing Yilong Hengye Petroleum Engineering Technology Co ltd
Current assignee: Beijing Yilong Hengye Petroleum Engineering Technology Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-06-05
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a can not get slip formula hanger, including hanger 6, connection rope 7 and slips 8, its characterized in that: the hanger 6 has a number of built-in lugs 3; the 8W of the clamp is a slip with a hanging lug; wherein the connecting ropes are respectively connected to the lugs of the slip segments 2 and the built-in lugs 3 of the hanger, thereby connecting them together. By using the slip-free hanger of the utility model, the hanging slips are not required to be taken out during the operation process, and the hanging slips are not required to move upwards along with the continuous oil pipe; when the fracture condition appears, still can prevent that coiled tubing from directly falling into in the well, improved work efficiency and operation security.

Description

Slip-free hanger

Technical Field

The utility model belongs to energy operation fields such as oil particularly, relate to a hanger device that is arranged in coiled tubing speed tubular column technology, especially one kind can not get slip formula hanger.

Background

The coiled tubing is used as an oil pipe for mature oil field and other energy operations, is a tubing made of low-carbon alloy steel, has good flexibility, and is also called as a flexible oil pipe. A coil of coiled tubing may be several kilometers in length. In the field operation of oil field, the coiled tubing speed string process is that coiled tubing is put into a well, and after the tubing is suspended at the well mouth through a suspension slip in a hanger, a coil of tubing is cut off at the well mouth, so that the coiled tubing is divided into two parts. After a period of process use, due to the reasons of capacity attenuation or other processes, the oil pipe in the well needs to be recovered, so that the two-way connector is used for connecting the two divided oil pipes at the well mouth, and then the oil pipe in the well is lifted out of the well through the coiled tubing power device for recovery.

In the current coiled tubing speed string process, in the coiled tubing recovery operation, the two-way connector is used for connecting the two-in-one oil tubes, and after a short distance, the hanging slips can be taken out. However, due to the factors such as unqualified pressing of the two-way connector or reduced yield strength of the oil pipe, the coiled tubing cannot bear tens of tons or even twenty tons of gravity formed by the abrasion resistance of the oil pipe in the well, and the coiled tubing may break at the two-way connector. At this moment, because the hanging slips are taken out, the coiled tubing can directly fall into the well, accidents are caused, and a series of complex fishing operations are carried out in the later stage. If the hanging slips are not taken out, the hanging slips can move upwards along with the coiled tubing and hang in some places, and due to the fact that the lifting force is large, the hanging slips can be easily torn apart, and other related equipment is indirectly damaged.

To the problem, the utility model provides a can not get slip formula hanger, neither need take out among the operation process and hang the slips, also need not worry that to hang the slips and do not shift up along with coiled tubing, when the rupture condition appears, still can prevent that coiled tubing from directly falling into in the well, improved work efficiency and operation security.

SUMMERY OF THE UTILITY MODEL

The utility model provides a slip-free hanger which integrates slips and a hanger through a connecting rope.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a can not take out slip formula hanger, includes hanger, connection rope and slips, its characterized in that: the hanger has a number of built-in lugs; the slips are slips with hangers; wherein the connecting rope is respectively connected with the hanging lug of the split slip and the built-in hanging lug of the hanger, thereby connecting the hanging lug and the built-in hanging lug together.

The slip with the hanging lugs is a split slip with the upper end provided with the hanging lugs.

The connecting rope can be a chain or a thin steel wire rope, the length of the connecting rope and the like are arranged according to the position of the slip and the inner space of the hanger, and the slip hanging can not be influenced.

The number of the built-in hanging lugs of the hanger is 4, and the periphery of the exterior of the hanger is provided with a corresponding number of jackscrews which are used for propping a sealing cylinder in the hanger to prevent the sealing cylinder from moving. The number of the hanging lugs of the slips corresponds to the number of the hanging lugs arranged in the hanger.

Through the installation the utility model discloses a hanger, when lifting coiled tubing in speed tubular column technology, the slips can need not take out, also need not worry to hang the slips and do not shift up along with coiled tubing. After the slips moved up a distance along with coiled tubing, because the connection of connecting the rope, the slips will stop at this position, in case the fracture condition appears, the slips was followed and is sat in placing in advance in the sealed section of thick bamboo slip seat in the hanger with the coiled tubing suspension that falls to the condition that prevents coiled tubing directly to fall into in the well takes place, has improved operation security and work efficiency.

Description of the drawings:

FIG. 1 is a schematic view of an eared slip for a drop-out slip hanger of the present invention, wherein a is a front view and b is a top view.

Fig. 2 is a schematic view of a hanger with built-in lugs of the slip-free hanger of the present invention, wherein a sealing cylinder is placed, wherein a is a front view, b is a side view, and c is a sectional view taken along a direction a-a in the side view of b in fig. 2.

Figure 3 is a top view of the slip-on hanger of the present invention.

Description of the reference numerals

1. A slips hanger; 2. a slip segment; 3. a hanger is hung on the ear; 4. a sealing cylinder; 5. carrying out top thread; 6. a hanger; 7. connecting ropes; 8-slips.

Detailed Description

The device of the present invention will be described in further detail by way of example with reference to the accompanying drawings.

Example 1:

a slip-free hanger comprises slips 8 with hangers 1, a thin steel wire connecting rope 7 and a hanger 6 provided with 4 built-in hangers 3. The slip is provided with 4 slip segments 2, the upper end of each slip segment is respectively provided with a hanging lug 1, and the two ends of each connecting rope 7 are respectively connected with the hanging lug 1 of the slip and the built-in hanging lug 3 of the hanger to connect the slip segments together.

The utility model discloses a device operation process as follows:

in the early suspension stage of the speed pipe column, the continuous oil pipe is clamped by the slips 8, and the hangers 1 on 4 petals of the slips are respectively connected with the corresponding hanger hangers 3 through the connecting rope 7 before the slip seat of the lower sealing barrel is seated. After the slips 8 are seated, the connecting rope 7 is not taken down.

In the later stage of pulling out the coiled tubing, after the bidirectional connector is pulled out of the power device, the slips 8 and the connecting rope 7 are taken out of the hanger 6.

When the condition of fracture appears, slips 8 are then seated in the slip seat of the sealing barrel 4 placed in the hanger 6 in advance, and the falling coiled tubing is hung, so that the coiled tubing is prevented from directly falling into the well.

Claims

1. A slip-free hanger comprising a hanger (6), a connecting rope (7) and a slip (8), characterized in that: the hanger (6) has a certain number of built-in lugs (3); the slips (8) are slips with hangers; wherein the connecting rope is respectively connected on the hanging lug (1) of the slip flap (2) and the built-in hanging lug (3) of the hanger, thereby connecting the hanging lug and the built-in hanging lug together.

2. The breakaway slip hanger of claim 1 wherein: the number of the built-in hanging lugs (3) of the hanger (6) is 4.

3. The breakaway slip hanger of claim 1 wherein: the number of the hanging lugs of the slips (8) corresponds to the number of the hanging lugs (3) arranged in the hanger.

4. The breakaway slip hanger of claim 1 wherein: the periphery of the outer part of the hanger (6) is provided with jackscrews (5) with the number corresponding to that of the built-in hangers (3).

5. The breakaway slip hanger of claim 1 wherein: the connecting rope (7) is a chain or a thin steel wire rope.

6. The breakaway slip hanger of claim 1 wherein: the slip with the hangers is a split slip with the slip segments of which the upper ends are provided with the hangers.