CN215804433U

CN215804433U - Directional well windowing appurtenance

Info

Publication number: CN215804433U
Application number: CN202122224635.8U
Authority: CN
Inventors: 李文涛; 贾东旭; 于德明
Original assignee: Songyuan Ningjiang Furuixin Petroleum Technology Service Co ltd
Current assignee: Songyuan Ningjiang Furuixin Petroleum Technology Service Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-11
Anticipated expiration: 2031-09-14

Abstract

A directional well windowing aid tool. Relates to the technical field of oil field drilling tools. The lower part of the upper section pipe is a conical pipe with a small upper part and a large lower part, the lower part of the conical pipe is a lower section pipe, three grooves which are uniformly distributed on the circumference and are recessed inwards are processed on the excircle of the lower section pipe, the grooves extend upwards until the grooves are tangent to the conical pipe, the three grooves are spaced, and square neutral spaces which are uniformly distributed on the circumference are upwards cut on the excircle of the lower section pipe from the bottom. The utility model has the following beneficial effects: the upper section pipe is hermetically connected with the outer circle of the bottom of the whipstock, so that the phenomenon that iron cuttings and rock debris enter the oil pipe anchor at the lower part in the drilling process to cause the action fault of the oil pipe anchor is prevented, the iron cuttings and the rock debris generated in the windowing drilling process fall into the groove from the guide plate and leave the slips to enter the well bottom, the square neutral position is used as a slip opening space of the oil pipe anchor, the whole cover shell is made of a soluble material, the cover shell is automatically dissolved after the windowing operation is finished, fishing is not needed, and the whipstock and the oil pipe anchor are not prevented from being lifted out of the well.

Description

Directional well windowing appurtenance

The technical field is as follows:

the utility model relates to the technical field of oilfield drilling tools, in particular to a directional well windowing auxiliary tool.

Background art:

the directional well technology is one of the most advanced drilling technologies in the world petroleum exploration and development field, the well track is effectively controlled by a special downhole tool, a measuring instrument and a process technology, so that a drill bit can drill to a preset underground target along a specific direction.

The utility model has the following contents:

in order to solve the above problems, the present invention provides a directional well windowing auxiliary tool.

The technical scheme of the utility model is as follows: the utility model provides a directional well windowing appurtenance, includes the cover casing that upper segment pipe, circular cone pipe and hypomere pipe constitute, and upper segment pipe lower part is the circular cone pipe that big end down, and circular cone pipe lower part is the hypomere pipe, processes into the recess of three inside recesses of circumference equipartition on the excircle of hypomere pipe, and the recess upwards extends until tangent with circular cone pipe, three recess interval position, and the excircle of hypomere pipe upwards cuts from the bottom has the square neutral of circumference equipartition.

The outer conical surface of the conical pipe is provided with a guide plate, and the guide plate descends to the groove position from the middle of the two grooves to two sides in an inclined plane.

The inner hole of the upper section pipe is provided with a sealing ring.

The entire boot shell is made of a soluble material.

The utility model has the following beneficial effects: the upper section pipe is hermetically connected with the outer circle of the bottom of the whipstock, so that the phenomenon that iron cuttings and rock debris enter the oil pipe anchor at the lower part in the drilling process to cause the action fault of the oil pipe anchor is prevented, the iron cuttings and the rock debris generated in the windowing drilling process fall into the groove from the guide plate and leave the slips to enter the well bottom, the square neutral position is used as a slip opening space of the oil pipe anchor, the whole cover shell is made of a soluble material, the cover shell is automatically dissolved after the windowing operation is finished, fishing is not needed, and the whipstock and the oil pipe anchor are not prevented from being lifted out of the well.

Description of the drawings:

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

In the figure, 1-an upper section pipe, 2-a conical pipe, 3-a lower section pipe, 4-a groove, 5-a square neutral position, 6-a sealing ring and 7-a guide plate.

The specific implementation mode is as follows:

the utility model will be further described with reference to the accompanying drawings in which:

the directional well windowing auxiliary tool comprises a cover shell body consisting of an upper section pipe 1, a conical pipe 2 and a lower section pipe 3, wherein the lower part of the upper section pipe 1 is the conical pipe 2 with a small upper part and a large lower part, the lower part of the conical pipe 2 is the lower section pipe 3, three grooves 4 which are uniformly distributed on the circumference and are recessed inwards are machined on the excircle of the lower section pipe 3, the grooves 4 extend upwards until the grooves are tangent to the conical pipe 2, the intervals of the three grooves 4 are positioned, and the excircle of the lower section pipe 3 is upwards cut from the bottom to form square neutral positions 5 uniformly distributed on the circumference.

A guide plate 7 is arranged on the outer conical surface of the conical pipe 2, and the guide plate 7 descends to the position of the groove 4 in an inclined plane from the middle of the two grooves 4 to two sides.

The sealing ring 6 is arranged in an inner hole of the upper section pipe 1, the sealing ring 6 is used for sealing an outer circle at the bottom of the whipstock, so that the phenomenon that the action fault of the tubing anchor is caused when iron cuttings and rock debris enter the tubing anchor at the lower part in the drilling process is prevented, the iron cuttings and the rock debris generated in the windowing drilling process fall into the groove 4 from the guide plate 7 and cannot fall onto a slip of the tubing anchor along with the fact that the groove 4 falls at the bottom of a well, the slip is prevented from being clamped and incapable of anchoring, and the square neutral position 5 serves as a slip opening space of the tubing anchor.

The whole cover shell is made of soluble materials, and the cover shell is automatically dissolved after the windowing operation is finished, so that fishing is not needed, and the whipstock and the tubing anchor are not hindered from being lifted out of the well.

Claims

1. The utility model provides a directional well appurtenance that windows, includes upper segment pipe (1), circular cone pipe (2) and lower section pipe (3) the cover casing of constituteing, its characterized in that: the lower part of the upper section pipe (1) is a small-end-up conical pipe (2), the lower part of the conical pipe (2) is a lower section pipe (3), three inward concave grooves (4) uniformly distributed on the circumference of the lower section pipe (3) are machined, the grooves (4) extend upwards until being tangent to the conical pipe (2), the three grooves (4) are spaced, and the outer circumference of the lower section pipe (3) is upwards cut from the bottom to form square neutral spaces (5) uniformly distributed on the circumference.

2. A directional well windowing aid tool according to claim 1 wherein: the outer conical surface of the conical pipe (2) is provided with a guide plate (7), and the guide plate (7) is inclined and descends to the position of the groove (4) from the middle of the two grooves (4) to the two sides.

3. A directional well windowing aid tool according to claim 1 wherein: the inner hole of the upper section pipe (1) is provided with a sealing ring (6).

4. A directional well windowing aid tool according to claim 1 wherein: the entire boot shell is made of a soluble material.