CN210918964U

CN210918964U - Downward oil pipe blowout preventer

Info

Publication number: CN210918964U
Application number: CN201920872258.9U
Authority: CN
Inventors: 韩雨轩; 李会亭; 韩天男
Original assignee: Daqing Fulongda Petroleum Engineering Mechanical Equipment Co ltd
Current assignee: Daqing Fulongda Petroleum Engineering Mechanical Equipment Co ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-07-03
Anticipated expiration: 2029-06-11

Abstract

The utility model belongs to the technical field of oil extraction equipment, in particular to a downward oil pipe blowout preventer, which is characterized in that a fixing device is arranged at the joint of a blowout preventer body and a wellhead sleeve, and a fixed rod is driven to move along the groove direction in a fixed groove by adjusting a rotating handle, so that a clamping plate connected with the end part of the fixed rod can fix the wellhead sleeve; set up the fixing base at the fixing device lower extreme simultaneously, set up fixed rectangular bag on the fixing base, fix through passing through expansion bolts or bolt with the fixed orifices and ground, can make the preventer body in the fixing base stabilize and rely on, avoid the problem that the preventer can appear dropping after long-time use.

Description

Downward oil pipe blowout preventer

Technical Field

The utility model belongs to the technical field of the oil recovery equipment, especially, relate to a down oil pipe preventer.

Background

The blowout preventer is used for closing a well mouth in the operation processes of oil testing, well repairing, well completion and the like to prevent blowout accidents, integrates full sealing and half sealing functions, has the characteristics of simple structure, easy operation, high pressure resistance and the like, is a well mouth safety sealing device for preventing blowout commonly used in oil fields, is arranged on a well mouth casing head to control a blowout device for high pressure oil, gas and water during oil drilling, can seal the well mouth when the pressure of the oil gas in the well is very high, and can replace gas-invaded slurry and increase the pressure of a liquid column in the well to press the blowout of the high pressure oil gas when heavy slurry is pressed in a drill rod. With the continuous development and progress of oil industry, people are more and more used for blowout preventers, the current blowout preventers are often unstable in use, and therefore the problem that the blowout preventers fall off after being used for a long time is caused, the overall speed of oil exploitation is affected, and the life safety of oil workers is threatened.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides one kind can use stably and prevent falling down to oil pipe preventer and solve above-mentioned problem.

The technical scheme of the utility model:

a downward tubing blowout preventer comprises a blowout preventer body, wherein the bottom of the blowout preventer body is connected with a wellhead sleeve, the outer end of the bottom of the blowout preventer body is fixedly provided with a plurality of fixed blocks, the fixed blocks are arranged on the upper end surface of a fixing device, the wellhead sleeve is arranged in the fixing device, and the bottom of the fixing device is connected with a fixed seat;

the fixing device comprises a fixing disc, the fixing disc is annular, the fixing block is arranged on the upper end face of the fixing disc at equal intervals, four fixing grooves are formed in the circumferential direction of the fixed disc at equal intervals between the outer ring and the inner ring, the center lines of the fixing grooves in the length direction all pass through the center of the fixing disc, fixing rods are arranged in the fixing grooves and are connected with the fixing grooves in a threaded engagement mode, the fixing rods are oriented to the inner ring of the fixing disc, one end of each fixing disc is connected with a limiting block, the limiting blocks are fixedly connected with the clamping plates, and a fixing support is arranged at.

Further, the fixing base includes the mount pad, the mount pad up end with fixed bolster bottom fixed connection, the mount pad bottom with the fixing base passes through bolt fixed connection.

Further, the fixing base four corners is fixed rectangular bag of fixedly connected with respectively, fixed rectangular bag includes a plurality of protruding type piece, every protruding type piece is connected through the branch concatenation each other, every protruding type piece center has all processed the fixed orifices, when using, the fixed orifices is fixed through expansion bolts or bolt and ground.

Furthermore, a rotating handle is arranged at one end of the fixing rod.

Further, fixing base and mount pad are annular fixing base and mount pad, the well head sleeve pipe pass fixing base, mount pad and fixed disk in proper order with preventer body bottom fixed connection.

Furthermore, a wear-resistant glue layer is arranged on the clamping plate.

The utility model has the advantages that:

the utility model arranges a fixing device at the joint of the blowout preventer body and the wellhead casing, and drives the fixing rod to move along the groove direction in the fixing groove by adjusting the rotating handle, so that the clamping plate connected with the end part of the fixing rod can fix the wellhead casing; set up the fixing base at the fixing device lower extreme simultaneously, set up fixed rectangular bag on the fixing base, fix through passing through expansion bolts or bolt with the fixed orifices and ground, can make the preventer body in the fixing base stabilize and rely on, avoid the problem that the preventer can appear dropping after long-time use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the fixing device of the present invention;

fig. 3 is a schematic view of a fixed rectangular bag structure of the utility model;

in the figure: 1-a blowout preventer body; 2-wellhead casing; 3, fixing blocks; 4-a fixing device; 5-fixing the base; 6-fixing the disc; 7-fixing grooves; 8-fixing the rod; 9-a limiting block; 10-a clamping plate; 11-a fixed support; 12-a mounting seat; 13-fixed rectangular; 14-a male block; 15-fixing holes; 16-a rotating handle; 17-wear-resistant glue layer.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

referring to fig. 1 to 3, the downhole tubing blowout preventer disclosed in this embodiment includes a blowout preventer body 1, a wellhead casing 2 is connected to the bottom of the blowout preventer body 1, a plurality of fixed blocks 3 are fixedly mounted at the outer end of the bottom of the blowout preventer body 1, the fixed blocks 3 are disposed on the upper end surface of a fixing device 4, the wellhead casing 2 is disposed inside the fixing device 4, and a fixing seat 5 is connected to the bottom of the fixing device 4;

the fixing device 4 comprises a fixed disc 6, the fixed disc 6 is annular, the fixed blocks 3 are annularly and equidistantly arranged on the upper end surface of the fixed disc 6, four fixing grooves 7 are circumferentially processed at equal intervals between the outer ring and the inner ring of the fixing disc 6, the central lines of the fixing grooves 7 along the length direction all pass through the center of the fixing disc 6, a fixed rod 8 is arranged in the fixed groove 7, the fixed rod 8 is engaged with the fixed groove 7 through threads, one end of the fixed rod 8, which points to the inner ring of the fixed disk 6, is connected with a limiting block 9, the limiting block 9 is fixedly connected with a clamping plate 10, the bottom of the fixed disk 6 is provided with a fixed bracket 11, the fixing device is arranged at the joint of the blowout preventer body and the wellhead casing pipe, and the fixing rod is driven to move along the groove in the fixing groove by adjusting the rotating handle, so that the clamping plate connected with the end part of the fixing rod can fix the wellhead casing pipe.

The second embodiment is as follows:

on the basis of the first specific implementation mode, specifically, the fixing seat 5 includes a mounting seat 12, an upper end surface of the mounting seat 12 is fixedly connected to the bottom of the fixing support 11, and the bottom of the mounting seat 12 is fixedly connected to the fixing seat 5 through a bolt.

The third concrete implementation mode:

this embodiment is on specific embodiment mode two basis, and is concrete, 5 four corners of fixing base difference fixedly connected with a fixed rectangular bag 13, fixed rectangular bag 13 includes a plurality of protruding type piece 14, every protruding type piece 14 is connected, every through the branch concatenation each other protruding type piece 14 center has all processed fixed orifices 15, when using, fixed orifices 15 is fixed through expansion bolts or bolt and ground, through setting up the fixing base at the fixing device lower extreme, sets up fixed rectangular bag on the fixing base, fixes through expansion bolts or bolt and ground with the fixed orifices, can make the preventer body in the fixing base support firmly, avoids the preventer body that can appear falling after long-time use the problem.

The fourth concrete implementation mode:

in this embodiment, on the basis of the first embodiment, specifically, a rotating handle 16 is disposed at one end of the fixing rod 8.

The fifth concrete implementation mode:

on the basis of the fourth specific implementation mode, specifically, the fixing seat 5 and the mounting seat 12 are annular fixing seats and mounting seats, and the wellhead casing 2 sequentially penetrates through the fixing seat 5, the mounting seat 12 and the fixing disk 6 to be fixedly connected with the bottom of the blowout preventer body 1.

The sixth specific implementation mode:

in this embodiment, on the basis of the first embodiment, specifically, the wear-resistant glue layer 17 is disposed on the clamping plate 10.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A downward oil pipe blowout preventer comprises a blowout preventer body (1), and is characterized in that a wellhead casing (2) is connected to the bottom of the blowout preventer body (1), a plurality of fixing blocks (3) are fixedly mounted at the outer end of the bottom of the blowout preventer body (1), the fixing blocks (3) are arranged on the upper end face of a fixing device (4), the wellhead casing (2) is arranged inside the fixing device (4), and a fixing seat (5) is connected to the bottom of the fixing device (4);

fixing device (4) include fixed disk (6), fixed disk (6) are the annular, fixed block (3) annular equidistant setting is in fixed disk (6) up end, equidistant annular circumference processing has four fixed slots (7) between fixed disk (6) outer lane and the inner circle, length direction's central line is all passed through in fixed slot (7) the center of fixed disk (6), be provided with dead lever (8) in fixed slot (7), dead lever (8) with fixed slot (7) are connected through thread engagement, dead lever (8) are directional the one end of fixed disk (6) inner circle is connected with stopper (9), stopper (9) and grip block (10) fixed connection, fixed disk (6) bottom is provided with fixed bolster (11).

2. The downhole tubing blowout preventer according to claim 1, wherein the fixed seat (5) comprises a mounting seat (12), an upper end surface of the mounting seat (12) is fixedly connected with the bottom of the fixed support (11), and the bottom of the mounting seat (12) is fixedly connected with the fixed seat (5) through a bolt.

3. The downhole tubing blowout preventer according to claim 2, wherein four corners of the fixing seat (5) are respectively and fixedly connected with a rectangular fixing block (13), the rectangular fixing block (13) comprises a plurality of convex blocks (14), each convex block (14) is connected with each other through a support rod in a splicing manner, a fixing hole (15) is machined in the center of each convex block (14), and when the downhole tubing blowout preventer is used, the fixing holes (15) are fixed with the ground through expansion bolts or bolts.

4. A downhole tubing blowout preventer according to claim 1, wherein the stationary rod (8) is provided with a swivel handle (16) at one end.

5. The downhole tubing blowout preventer according to claim 4, wherein the fixed seat (5) and the mounting seat (12) are annular fixed seats and mounting seats, and the wellhead casing (2) passes through the fixed seat (5), the mounting seat (12) and the fixed disk (6) in sequence to be fixedly connected with the bottom of the blowout preventer body (1).

6. A downhole tubing blowout preventer according to claim 1, wherein the clamping plate (10) is provided with a layer of wear resistant glue (17).