CN217300545U

CN217300545U - Ocean abandonment well head positioner

Info

Publication number: CN217300545U
Application number: CN202122365579.XU
Authority: CN
Inventors: 孙龙龙; 胡友莹; 秦玉洁
Original assignee: Shengli Oil Field Longxi Petroleum Engineering Services Co ltd
Current assignee: Shengli Oil Field Longxi Petroleum Engineering Services Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-08-26
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to an ocean abandonment well head field specifically provides an ocean abandonment well head positioner, wherein the both sides of the substituted section of beating have a lug, keep away from the lug the end of the substituted section of beating weld at one end of the reducing section, the other section of reducing section weld have a probe tube, the outer wall of one end of the probe tube, which keeps away from the reducing section, is provided with mud flushing holes all around, the inner wall of the bottom of the probe tube is welded with a probe plate; has the advantages that: the utility model can search the well mouth tentatively in the demarcated area after GPS positioning, and search the concrete position of the mud well mouth in a short time, thereby providing early guarantee for the subsequent well opening operation; the design is reasonable, and the operability is strong; the diameter range of about 2 times of the sleeve can be searched at one time; convenient to use, repeatedly usable.

Description

Ocean abandonment well head positioner

Technical Field

The utility model belongs to the technical field of the ocean abandonment well head and specifically relates to an ocean abandonment well head positioner is related to.

Background

Offshore oil wells abandoned in the past years have the need of secondary development or secondary well shut-in operation. When the well is abandoned in the year, all oil casings are cut to a depth of below 4 meters of a mud line according to the requirements of the regulations on safety of offshore oil. The wellhead is washed by seawater for many years under mud, and the sea mud precipitates, so that a diver can not accurately find the wellhead even when submerging.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve exist among the prior art not enough, and provide an ocean abandonment well head positioner.

The utility model discloses the new technical scheme who takes is: the utility model provides an abandonment well head positioner in ocean, includes the lug, takes for and beats section, reducing section, visit pipe and visit the board, take for and beat section both sides welding have the lug, keep away from the lug take for and beat section tip welding in reducing section one end, reducing section other section welding have and visit the pipe, keep away from the reducing section visit pipe one end outer wall be equipped with the mud flushing hole all around, visit pipe bottom inner wall welding have and visit the board.

The lifting lug is DH 36.

The thickness of the pad-out section is 25mm, and the pad-out section is DH 36.

The diameter of the mud flushing hole is 200 mm.

The diameter of the probe tube is larger than that of the forging section.

The utility model discloses the beneficial effect who produces does: the utility model can search the well mouth tentatively in the demarcated area after GPS positioning, and search the concrete position of the mud well mouth in a short time, thereby providing early guarantee for the subsequent well opening operation; the design is reasonable, and the operability is strong; the diameter range of about 2 times of the sleeve can be searched at one time; convenient to use, repeatedly usable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1. the lifting lug, 2, the section of beating instead, 3, the reducing section, 4, probe, 401, the sludger, 5, probe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings: the utility model provides an ocean abandonment well head positioner, includes lug 1, takes advantage of 2, reducing section 3, spy pipe 4 and visit the board 5 of beating, take advantage of 2 both sides welding of section of beating have lug 1, keep away from lug 1 take advantage of 2 tip welding of section of beating in reducing section 3 one end, 3 another sections welding of reducing section have spy pipe 4, keep away from reducing section 3 spy pipe 4 one end outer wall be equipped with towards mud hole 401 all around, the welding of the inner wall of 4 bottoms of spy pipe have and visit board 5.

The lifting lug 1 is DH 36.

The thickness of the pad-out section 2 is 25mm, and the pad-out section 2 is DH 36.

The diameter of the mud flushing hole 401 is 200 mm.

The diameter of the probe tube 4 is larger than that of the tedding section 2.

A lifting lug 1 and a replacing section 2 are connected through welding. The use of different specifications of pile hammers can be realized by using the reducing section 3. The reducer section 3 is connected with the probe tube 4 by welding. And mud flushing holes 401 with the diameter of 200mm are arranged on the periphery of the middle lower part of the probe tube 4, and after each downward exploration is finished, proper mud cleaning is carried out and then the next exploration is carried out. The probing operation is used for defining grids in a given area of the GPS and probing one by one to prevent missing probing. The probe plate 5 can probe the area inside the probe tube 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an ocean abandonment well head positioner, includes the lug, takes over to beat section, reducing section, visits pipe and visits the board, its characterized in that: the device comprises a reducer section, a displacement section, a sludge flushing hole, a sludge flushing plate, a sludge flushing hole and a probe plate, wherein lifting lugs are welded on two sides of the displacement section, the lifting lugs are kept away from, the end part of the displacement section is welded at one end of the displacement section, the other section of the displacement section is welded with a probe pipe, the displacement section is kept away from, the sludge flushing hole is formed in the outer wall of one end of the probe pipe, and the probe plate is welded on the inner wall of the bottom of the probe pipe.

2. The marine abandoned wellhead positioning device according to claim 1, wherein: the lifting lug is DH 36.

3. The marine abandoned wellhead positioning device according to claim 1, wherein: the thickness of the cutting segment is 25mm, and the cutting segment is DH 36.

4. The marine abandoned wellhead positioning device according to claim 1, wherein: the diameter of the mud flushing hole is 200 mm.

5. The marine abandoned wellhead positioning device according to claim 1, wherein: the diameter of the probe tube is larger than that of the forging section.