CN215718592U

CN215718592U - Wellhead anti-falling device for petroleum drilling engineering

Info

Publication number: CN215718592U
Application number: CN202122078753.2U
Authority: CN
Inventors: 杜方旗; 庞丽丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-01
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a wellhead falling-proof device for petroleum drilling engineering, which comprises a falling-proof base, wherein a bearing groove is formed in the upper end of the falling-proof base, a falling-proof plate is inserted in the bearing groove, a lower drilling hole is formed in the middle of the falling-proof base, the lower drilling hole is communicated with the bearing groove, an upper drilling hole is formed in the middle of the falling-proof plate, a plurality of lower observation holes are uniformly formed in the upper end of the falling-proof base, the lower observation holes are communicated with the bearing groove, upper observation holes which are equal to the lower observation holes are uniformly formed in the falling-proof plate, a hole cover is inserted in the upper drilling hole, and a handle is arranged at the upper end of the hole cover. Through will prevent that the device that falls sets up in the well head top for the dismouting is all very convenient, simultaneously through designing a bilayer and prevent falling the mechanism, and set up the observation hole that can misplace each other or coincide on two-layer preventing falling the mechanism, both can prevent that debris from falling into in the well, can watch the situation in the well at any time again, and it is very convenient to use.

Description

Wellhead anti-falling device for petroleum drilling engineering

Technical Field

The utility model belongs to the technical field of petroleum drilling, and particularly relates to a wellhead anti-falling device for petroleum drilling engineering.

Background

The task of drilling a borehole from the surface using mechanical equipment or manual labor is known as drilling. Generally refers to the engineering of drilling boreholes and large diameter water-supply wells for the exploration or exploitation of liquid and gaseous minerals such as oil, gas, and the like.

When the well head junk accident happens when oil drilling, the condition that will produce card brill and instrument equipment damage in the pit to subsequent well drilling in-process, and present junk device sets up usually in the well head, and whether put into or take out all very inconvenient, current junk device is mostly integral disc well lid in addition, then seals the well head after putting into the well head, and the condition in the well is looked over at inconvenient at any time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wellhead anti-falling device for petroleum drilling engineering, which solves the problems of inconvenient assembly and disassembly and inconvenient observation of conditions in a well in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a thing device that falls is prevented to well head for oil drilling engineering, is including preventing the base that falls, it has seted up the holding groove to prevent falling the base upper end, it has the board of preventing falling to hold to adorn in the groove, prevent falling and seted up down drilling in the middle of the base, drilling and holding groove intercommunication down, prevent falling and seted up the upper bore hole in the middle of the board, prevent falling and evenly seted up a plurality of observation holes down in the base upper end, observe the hole down and hold the groove and communicate, prevent falling evenly set up on the board and observe the hole with down on the same amount of observation hole, the interpolation of going up the drilling is equipped with the handhole door.

Preferably, the lower end of the anti-falling base is provided with a grounding ring, and the grounding ring is provided with a plurality of countersunk holes.

Preferably, the edge of the anti-falling plate is provided with a clamping block, the upper end of the anti-falling base is provided with a clamping groove, the clamping block is located in the clamping groove, and the clamping groove is inserted with a limiting block.

Preferably, a handle is arranged at the upper end of the hole cover.

Compared with the prior art, the utility model has the beneficial effects that: through will prevent that the device that falls sets up in the well head top for the dismouting is all very convenient, simultaneously through designing a bilayer and prevent falling the mechanism, and set up the observation hole that can misplace each other or coincide on two-layer preventing falling the mechanism, both can prevent that debris from falling into in the well, can watch the situation in the well at any time again, and it is very convenient to use.

Drawings

FIG. 1 is a schematic top view of the present invention;

fig. 2 is a front cut-away schematic view of the present invention.

In the figure: 1. the anti-falling device comprises an anti-falling base, 2 bearing grooves, 3 anti-falling plates, 4 lower drill holes, 5 upper drill holes, 6 lower observation holes, 7 upper observation holes, 8 hole covers, 9 grounding rings, 10 counter sink holes, 11 fixture blocks, 12 clamping grooves, 13 limiting blocks and 14 handles.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a wellhead anti-falling device for oil drilling engineering, including an anti-falling base 1, a receiving groove 2 is formed at an upper end of the anti-falling base 1, an anti-falling plate 3 is inserted into the receiving groove 2, a lower drilling hole 4 is formed in the middle of the anti-falling base 1, the lower drilling hole 4 is communicated with the receiving groove 2, an upper drilling hole 5 is formed in the middle of the anti-falling plate 3, three lower observation holes 6 are uniformly formed at an upper end of the anti-falling base 1, the lower observation holes 6 are communicated with the receiving groove 2, an upper observation hole 7 equal to the lower observation hole 6 is uniformly formed in the anti-falling plate 3, and a hole cover 8 is inserted into the upper drilling hole 5.

Referring to fig. 1 and 2, a grounding ring 9 is welded to the lower end of the anti-falling base 1, and a plurality of countersunk holes 10 are formed in the grounding ring 9 and used for fixing the anti-falling base 1 on the ground through anchor bolts. The edge casting of preventing falling board 3 has fixture block 11, prevents falling base 1 upper end and has seted up draw-in groove 12, and fixture block 11 is located draw-in groove 12 for observe the relative position of hole 7 and observation hole 6 down in the adjustment, draw-in groove 12 is inserted and is equipped with stopper 13, is used for carrying out spacing fixed to preventing falling board 3. The upper end of the hole cover 8 is welded with a handle 14, so that the hole cover 8 can be conveniently taken out.

The working principle of the embodiment is as follows: when the anti-falling base is used, the anti-falling base 1 is placed above a wellhead, the anti-falling base penetrates through the countersunk hole 10 to be fixed on the ground through the anchor bolt, then the manhole cover 8 is taken down through the handle 14, then the drill rod penetrates through the upper drill hole 5 and the lower drill hole 4, when the anti-falling base works, the limiting block 13 is taken out, then the anti-falling plate 3 is rotated, the clamping block 11 is rotated to the rear end of the clamping groove 12, so that the positions of the lower observation hole 6 and the upper observation hole 7 are completely staggered, the sealing effect is achieved, sundries are prevented from falling into the well, then the limiting block 13 is inserted into the clamping groove 12 to limit the anti-falling plate 3, when the condition in the well needs to be observed, the limiting block 13 is firstly taken out, then the anti-falling plate 3 is rotated to the front end of the clamping groove 12, so that the positions of the lower observation hole 6 and the upper observation hole 7 are superposed, so that the condition in the well can be observed, the anti-falling plate 3 is rotated after the observation is finished, so that the upper observation hole 7 and the lower observation hole 6 are completely staggered, and then the stopper 13 is inserted.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a thing device is prevented falling by well head for oil drilling engineering which characterized in that: including preventing base (1) that falls, prevent falling base (1) upper end and seted up and hold groove (2), hold groove (2) interpolation and be equipped with and prevent falling board (3), prevent falling and seted up down drilling (4) in the middle of base (1), drilling (4) are linked together with holding groove (2) down, prevent falling board (3) in the middle of having seted up drilling (5), prevent falling base (1) upper end and evenly seted up a plurality of observation holes (6) down, observe hole (6) and hold groove (2) and be linked together down, prevent falling board (3) go up evenly set up with observation hole (6) equivalent upward observe hole (7), it is equipped with handhole door (8) to go up drilling (5) interpolation.

2. A wellhead fall prevention device for oil drilling engineering according to claim 1, characterized in that: the anti-falling base is characterized in that a grounding ring (9) is arranged at the lower end of the anti-falling base (1), and a plurality of countersunk holes (10) are formed in the grounding ring (9).

3. A wellhead fall prevention device for oil drilling engineering according to claim 1, characterized in that: the edge of the anti-falling plate (3) is provided with a clamping block (11), the upper end of the anti-falling base (1) is provided with a clamping groove (12), the clamping block (11) is located in the clamping groove (12), and the clamping groove (12) is inserted with a limiting block (13).

4. A wellhead fall prevention device for oil drilling engineering according to claim 1, characterized in that: the upper end of the hole cover (8) is provided with a handle (14).