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Hanger with metal auxiliary seal and tubing equipment with hanger

A metal seal and hanger technology, which is applied in sealing/isolation, wellbore/well components, earthwork drilling and production, etc., can solve problems such as wellhead out of control, fluid surge, personnel injury, etc., achieve reliable sealing performance and improve sealing Performance, the effect of preventing seal failure

Active Publication Date: 2016-10-12
四川宝石机械钻采设备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this structural design are: in the case of a wellhead failure, it is difficult to carry out maintenance operations under pressure; it may cause the wellhead to lose control, fluid gushes out, and even cause accidents such as environmental pollution and personal injury
The hydraulic swing side door structure has the characteristics of convenient operation, compact structure and quick opening and closing. However, when the side door is opened, the side door is easy to fall, and the opening and closing of the side door is not smooth, which causes the side door seal to be easily damaged.

Method used

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  • Hanger with metal auxiliary seal and tubing equipment with hanger
  • Hanger with metal auxiliary seal and tubing equipment with hanger
  • Hanger with metal auxiliary seal and tubing equipment with hanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A hanger with a metal secondary seal, comprising a hanger body 42, a main seal assembly 48 using a metal seal is arranged between the shoulder of the hanger body 42 and the casing head 41 of the lower layer, the hanger A metal-sealed auxiliary seal assembly 44 is provided between the top of the body 42 and the upper casing head 45 , and a standard gasket ring 43 is provided between the upper casing head 45 and the lower casing head 41 .

Embodiment 2

[0056] On the basis of the first embodiment, an adjusting gasket is also provided between the secondary sealing assembly 44 and the upper casing head 45 .

Embodiment 3

[0058] On the basis of Embodiment 1, a pressure test hole 47 is opened on the outer cylindrical surface of the upper casing head 45, and the pressure test hole 47 is connected to the secondary sealing assembly through the pipeline inside the upper casing head 45. 44 and the bonding surface of the upper casing head 45 between the standard gasket ring 43.

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Abstract

The invention discloses a hanger with a metal auxiliary seal and tubing equipment with the hanger, belongs to the field of oil-gas drilling and production equipment, and aims to provide the high-sealing-performance and long-service-life hanger with a metal auxiliary seal and tubing equipment with the hanger. The hanger comprises a hanger body, wherein a main seal component adopting metal seal is arranged between the shaft shoulder of the hanger body and a lower casing head; an auxiliary seal assembly adopting metal seal is arranged between the top of the hanger body and an upper casing head; and a standard seal gasket ring is arranged between the upper casing head and the lower casing head. The invention is adaptive to the hanger and the tubing equipment using the hanger.

Description

technical field [0001] The invention belongs to the technical field of oil and gas drilling and production equipment, and relates to equipment for lifting and lowering oil pipes. Background technique [0002] The oil pipe is a pipeline that transports crude oil and natural gas from the oil and gas layer to the surface after drilling to withstand the pressure generated during the production process. The steps of running the oil pipe are usually: first, after the drilling is completed and the drill is lifted, run 30 casings and fix them, cut off the excess casing, install the base and weld the casing on the base; second, wait for the drill to be drilled twice After lifting the drill, run and fix 20 casings, cut off the excess casing, install the adjusting base and surface casing head, and fix the 20 casings with slips, and install the rising sub, drilling spool, BOP, test the pressure and install the anti-friction sleeve; thirdly, after the three-way drill is completed and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/04E21B33/06
CPCE21B33/04E21B33/0422E21B33/06
Inventor 张川李伟刘鸣张耀明郑泳刘义赵琳王裕海杨谭
Owner 四川宝石机械钻采设备有限责任公司
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