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Sealing structure for side door of blowout preventer

A technology of sealing structure and blowout preventer, which is applied in the direction of sealing/package, engine sealing, wellbore/well components, etc. It can solve the problems of complex downhole conditions, damage to drilling equipment, and damage to oil and gas resources, so as to reduce the smoothness Requirements, the effect of easy disassembly and assembly

Active Publication Date: 2013-03-27
SHANGHAI GASOLINEEUM & CHEM EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Blowout out of control will complicate the downhole situation, prevent normal drilling operations and even damage drilling equipment, destroy oil and gas resources, pollute the natural environment and endanger the safety of drilling personnel and oil and gas wells

Method used

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  • Sealing structure for side door of blowout preventer
  • Sealing structure for side door of blowout preventer
  • Sealing structure for side door of blowout preventer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, a blowout preventer side door sealing structure is used to seal the side door 3 and the casing 4, including a sealing ring 1 and a casing sealing surface 2; the sealing ring 1 is arranged in the sealing groove of the side door 3, as figure 2 As shown, the sealing ring 1 includes: a vulcanized side door sealing frame 11, an anti-extrusion steel wire mesh 12 and a sealing rubber 13; 1 to match. The sealing rubber 13 is respectively provided with a convex arc-shaped sealing surface Rg and a concave arc-shaped auxiliary cover Re. The arc radius of the arc-shaped sealing surface Rg is R5-R20mm. The arc radius of the arc auxiliary cover (Re) is R4~R7mm.

[0029] The width K of the sealing rubber is 9-15mm. The performance index of sealing rubber 13 needs to meet the following par...

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PUM

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Abstract

The invention discloses a sealing structure for a side door of a blowout preventer. The sealing structure is used for sealing a side door and a casing and comprises a sealing ring and a casing sealing surface. The sealing ring is arranged on the side door and comprises a side door sealing framework, an extruding proof steel wire gauze and sealing rubber which are vulcanized into a whole; and the casing sealing surface is opened on the casing and matched with the sealing ring. The sealing rubber is provided with a convex arc sealing surface and a concave arc sealing auxiliary surface respectively. The sealing structure can bear high pressure, the sealing is safe and reliable, the mounting and dismounting is convenient, and finish requirements for side door planes can be appropriately reduced.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a sealing structure of a blowout preventer side door. Background technique [0002] Once formation fluid is out of control during oil and gas drilling, well kick or blowout may occur out of control. Blowout out of control will complicate the downhole situation, prevent normal drilling operations and even damage drilling equipment, destroy oil and gas resources, pollute the natural environment and endanger the safety of drilling personnel and oil and gas wells. In order to effectively control the blowout, blowout preventers must be used, and the side door seal has always been the weak link of the blowout preventer. Improving the reliability of the side door seal is a long-term research topic. Contents of the invention [0003] The invention provides a sealing structure for a side door of a blowout preventer, which can withstand high pressure, has safe and reliable sealing, is convenient f...

Claims

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Application Information

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IPC IPC(8): F16J15/12E21B33/06
Inventor 姚胥源尚凯丽尹恩来董嘉华戴昀梁珊
Owner SHANGHAI GASOLINEEUM & CHEM EQUIP
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