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Casing pipe head convenient to change

A technology for convenient replacement and casing head, which is applied in the field of casing head, can solve the problems of inconvenient replacement and achieve the effects of improving efficiency, simple and convenient operation, and reducing replacement cost

Inactive Publication Date: 2017-09-26
JIANGSU HENGXIN PETROCHEM MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the invention provides a casing head that is easy to replace, which has the advantage of being easy to replace, and solves the problem that the casing heads currently on the market are inconvenient to replace

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  • Casing pipe head convenient to change
  • Casing pipe head convenient to change
  • Casing pipe head convenient to change

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] see Figure 1-3 , a casing head that is easy to replace, including a casing collar 7, the top and bottom of the casing collar 7 are provided with a casing head gland 1, and the inside of the casing head gland 1 is fixedly installed with a casing joint 2. The end of the casing joint 2 away from the casing collar 7 penetrates and extends out of the casing head gland 1, and the inner wall of the casing joint 2 is fixedly installed with two opposite stopper...

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Abstract

The invention relates to the technical field of a casing pipe head and discloses a casing pipe head convenient to change. The casing pipe head convenient to change comprises a casing pipe coupling; casing pipe head glands are arranged at the top and at the bottom of the casing pipe coupling; casing pipe joints are fixedly arranged in the casing pipe head glands; two opposite limiting blocks are fixedly arranged on the inner walls of the casing pipe joints; the opposite sides of the two limiting blocks are fixedly connected with the two ends of a T-shaped supporting rod; rubber sealing rings are arranged on the side surfaces of the casing pipe head glands in a sleeving way. The casing pipe head convenient to change can effectively perform on-site disassembling and change through bolt positioning and internal leakage prevention modes, is simple and convenient to operate and effectively improves the assembling efficiency; a leakage prevention device is arranged in each interface, so that the outflow of liquid substances is reduced; each part is processed by special equipment, so stable size of each part is guaranteed, conditions are created for mounting standardization of products, and the change cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of casing heads, in particular to a casing head which is convenient for replacement. Background technique [0002] The casing head is generally made of high-quality alloy structural steel, and a casing hanger is set inside the casing head to hang the casing string of the corresponding specification. The pipe string is used to support the gravity of the technical casing and the oil layer casing, and seal the annular space, seal the annular space between each layer of pipes, and provide transitional connections for the installation of blowout preventers, tubing heads, and Christmas trees. [0003] The casing heads currently on the market are inconvenient to replace, so an easy-to-replace casing head is proposed to solve the above-mentioned problems. Contents of the invention [0004] (1) Solved technical problems [0005] Aiming at the deficiencies of the prior art, the invention provides a casing head tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/04
CPCE21B33/04
Inventor 袁志国薛山薛友恒蒋林
Owner JIANGSU HENGXIN PETROCHEM MACHINERY
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