CN215332748U

CN215332748U - Casing head convenient to replace

Info

Publication number: CN215332748U
Application number: CN202121772727.3U
Authority: CN
Inventors: 崔龙; 崔文琪
Original assignee: Yancheng Qihang Petroleum Machinery Co ltd
Current assignee: Yancheng Qihang Petroleum Machinery Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-28
Anticipated expiration: 2031-07-30

Abstract

The utility model provides a casing head convenient to replace, which comprises a wellhead device and a sealing device, wherein fixing seats are arranged on two sides of the wellhead device, a casing head body is arranged above the fixing seats, the casing head body is sleeved on the wellhead device, a connecting seat is arranged on one side below the casing head body, a groove is arranged on the other side below the casing head body, a connector is arranged on the fixing seats and is fixedly connected with the casing head body, and the connector is distributed on two sides of the fixing seats. And a sealing device is arranged between the casing head body and the wellhead device, so that the sealing performance is enhanced. The casing head body is fixed through the screws and the ejector rods, the screws are distributed on the fixing seat in a crossed mode, the casing head body can be loosened by unscrewing the two screws, complex operation that a plurality of screws need to be loosened is omitted, and time is saved.

Description

Casing head convenient to replace

Technical Field

The utility model belongs to the technical field of casing head equipment, and particularly relates to a casing head convenient to replace.

Background

The casing head is an important connection between the casing and the wellhead, and its lower end is connected to the wellhead or blowout preventer by a flange or a collar. The casing head can hang each layer of casing weight, can support the preventer more than the casing head, for providing sealed between each layer of casing, can provide the passageway for special operation.

The utility model discloses a quick simple and easy installation casing head is disclosed for CN208619056U as publication number, including casing head body, flange, fixing base and connector, the upper end of casing head body is provided with flange, the lower extreme of casing head body is provided with the fixing base, the connector sets up to two, two connector mirror symmetry set up at flange's diameter both ends, the connector sets up to fan-shaped structure, fan-shaped structure the connector on be provided with the mounting hole of penetrability, the mounting hole runs through with flange, be provided with fastening bolt in the mounting hole, the flange lower extreme is provided with the mount table with mounting hole assorted. The casing head of being convenient for is connected with installing component preceding quick, nevertheless need loosen fastening bolt one by one when needing to change the casing head, takes out a plurality of fastening bolt, and is consuming time long, and is more loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a casing head convenient to replace, solves the problem of repeated background problems and can improve the efficiency.

The utility model provides the following technical scheme:

a casing head for easy replacement comprising:

the well head device is characterized in that fixing seats are arranged on two sides of the well head device, a casing head body is arranged above the fixing seats, the casing head body is sleeved on the well head device, a connecting seat is arranged on one side below the casing head body, a groove is formed in the other side of the casing head body, a connector is arranged on the fixing seats and is fixedly connected with the casing head body, and the connector is distributed on two sides of the fixing seats;

and the sealing device is arranged between the casing head body and the wellhead device and comprises various sealing elements.

Preferably, the connectors are distributed crosswise on the front and rear sides in the fixing base.

Preferentially, the connector includes the screw, the connecting seat passes through the screw and is fixed with the fixing base, be equipped with two vertical through-holes and single horizontal through-hole in the fixing base, vertical through-hole is linked together with horizontal through-hole, and the screw is established and is equipped with the wedge in the horizontal through-hole in the vertical through-hole of one side, is equipped with the ejector pin in the vertical through-hole of opposite side, screw and ejector pin lower extreme are slope form and wedge both ends cooperation, rotate thereby the screw enables the wedge and removes the inslot that makes the ejector pin withstand the casing head body.

Preferentially, the ejector rods and the screws are distributed at four corners in the fixing seat in a crossed manner and are used for fixing the sleeve head body.

Preferably, the seal is provided with a sealing grommet and a sealing ring between the casing head body and the wellhead.

The utility model has the beneficial effects that:

1. the sealing element is provided with a sealing ring and a sealing washer between the casing head body and the wellhead device, so that the sealing performance is ensured.

2. Cooperate through wedge and screw and ejector pin lower extreme, and both sides all are equipped with screw and ejector pin cross distribution around the fixing base in four edges of fixing base, through rotating thereby the screw enables the wedge and removes the inslot that makes the ejector pin withstand the casing head body to it is fixed with the casing head body through screw and ejector pin.

3. The casing head body is fixed through the screws and the ejector rods, the screws are distributed on the fixing seat in a crossed mode, the casing head body can be loosened by unscrewing the two screws, complex operation that a plurality of screws need to be loosened is omitted, and time is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front cross-sectional structural schematic view of the present invention;

fig. 2 is a schematic front view of the connector of the present invention.

Labeled as: the well head comprises a casing head body 1, a wellhead device 2, a sealing gasket ring 3, a connector 4, a longitudinal through hole 41, a screw 42, a wedge block 43, a push rod 44, a fixed seat 5 and a sealing ring 6.

Detailed Description

As shown in fig. 1 and 2, a casing head convenient to replace comprises a wellhead device 2 and a sealing device, wherein two sides of the wellhead device 2 are provided with a fixing seat 5, a casing head body 1 is arranged above the fixing seat 5, the casing head body 1 is sleeved on the wellhead device 2, one side of the lower side of the casing head body 1 is provided with a connecting seat, the other side of the lower side of the casing head body is provided with a groove, a connector 4 is fixedly connected with the casing head body 1 and arranged on the fixing seat 5, and the connector 4 is distributed on the front side and the rear side in the fixing seat 5 and used for fixing the casing head body 1.

Be equipped with sealing device between casing head body 1 and the wellhead assembly 2, reinforcing sealing performance prevents to reveal, sealing device includes multiple sealing member. The sealing elements are a sealing gasket ring 3 and a sealing ring 6, and the sealing gasket ring 3 and the sealing ring 6 are arranged between the casing head body 1 and the wellhead device 2.

Connector 4 includes screw 42, the connecting seat passes through screw 42 and is fixed with fixing base 5, be equipped with two vertical through-holes 41 and single horizontal through-hole in the fixing base 5, vertical through-hole 41 is linked together with horizontal through-hole, and screw 42 is established in the vertical through-hole 41 of one side, is equipped with wedge 43 in the horizontal through-hole, is equipped with ejector pin 44 in the vertical through-hole of opposite side, screw 42 and ejector pin 44 lower extreme are slope form and wedge 43 both ends cooperation, rotate thereby screw 42 enables wedge 43 and removes and makes ejector pin 44 withstand the inslot of casing head body 1. Two ejector rods 44 and two screws 42 are distributed in the fixed seat 5 at four corners in a crossed manner and used for fixing the casing head body 1. Cooperate through wedge 43 and screw 42 and ejector pin 44 lower extreme, and both sides all are equipped with screw 42 and ejector pin 44 cross distribution around fixing base 5 at four edges of fixing base 5, through rotating thereby screw 42 enables the wedge 43 and removes the inslot that makes ejector pin 44 withstand casing head body 1 to it is fixed with casing head body 1 through screw 42 and ejector pin 44. The casing head body can be loosened only by unscrewing the two screws, so that the complex operation of loosening a plurality of screws is omitted, the time is saved, and the replacement is convenient.

When the device is used, the casing head body 1 is placed on the fixed seat 1, the wedge-shaped blocks 43 are matched with the screws 42 and the lower ends of the ejector rods 44, the screws 42 and the ejector rods 44 are arranged on the front side and the rear side of the fixed seat 5 and are distributed on the four edges of the fixed seat 5 in a crossed mode, the wedge-shaped blocks 43 can move by rotating the two screws 42, so that the ejector rods 44 move upwards to abut against the groove of the casing head body 1, when the casing head body 1 needs to be replaced, the two screws 42 are reversely rotated to be taken down, and the casing head body 1 can be loosened.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A casing head for easy replacement, comprising:

the well head device comprises a well head device (2), wherein fixing seats (5) are arranged on two sides of the well head device (2), a casing head body (1) is arranged above the fixing seats (5), the casing head body (1) is sleeved on the well head device (2), a connecting seat is arranged on one side below the casing head body (1), a groove is formed in the other side of the casing head body, a connector (4) is arranged on the fixing seats (5) and is fixedly connected with the casing head body (1), and the connectors (4) are distributed on two sides of the fixing seats (5);

the sealing device is arranged between the casing head body (1) and the wellhead device (2) and comprises various sealing elements.

2. The casing head facilitating replacement according to claim 1, wherein the connectors (4) are distributed on the front and rear sides within the holder (5) for fixing the casing head body (1).

3. The casing head convenient to replace according to claim 2, wherein the connector (4) comprises a screw (42), the connecting seat is fixed with the fixing seat (5) through the screw (42), two longitudinal through holes (41) and a single transverse through hole are formed in the fixing seat (5), the longitudinal through holes (41) are communicated with the transverse through holes, the screw (42) is arranged in the longitudinal through hole (41) on one side, a wedge-shaped block (43) is arranged in the transverse through hole, an ejector rod (44) is arranged in the longitudinal through hole on the other side, the lower ends of the screw (42) and the ejector rod (44) are in inclined fit with two ends of the wedge-shaped block (43), and the rotation of the screw (42) can enable the wedge-shaped block (43) to move so that the ejector rod (44) abuts against the groove of the casing head body (1).

4. The casing head facilitating replacement according to claim 3, wherein the ejector pins (44) and the screws (42) are distributed crosswise at four corners inside the fixing base (5) for fixing the casing head body (1).

5. A casing head for easy replacement according to claim 1, wherein the seal is provided with a gasket ring (3) and a sealing ring (6) between the casing head body (1) and the wellhead (2).