Large-diameter gas storage well

A gas storage well, large-diameter technology, applied in fixed-capacity gas storage tanks, gas/liquid distribution and storage, non-pressure vessels, etc., can solve the problem of increasing construction difficulty and construction cost, inconvenient manufacturing and transportation, and increasing drilling depth, etc. problems, to achieve the effect of shortening drilling depth, saving cost and construction period, and ensuring assembly quality

Inactive Publication Date: 2014-02-19
SICHUAN PETROLEUM & NATURAL GAS SCI & TECH CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small diameter of the wellbore, the gas storage capacity is very small. Under the same gas storage capacity, the length of the existing wellbore is longer, which is inconvenient to manufacture and transport. Due to the longer wellbore, the depth of drilling is also increased, which increases the difficulty of construction and construction. cost

Method used

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  • Large-diameter gas storage well
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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] Such as Figure 1-3 A large-diameter gas storage well shown includes a wellhead device and a wellbore 1, and the outer diameter of the wellbore 1 is >273.1mm. The present invention adopts a wellbore 1 with a larger pipe diameter, and the specific outer diameter is determined according to specific construction requirements, which exceeds the maximum diameter of the wellbore 273.1mm in the existing national standard, and meets the requirement of a large gas storage capacity, and in the case ...

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Abstract

The invention discloses a large-diameter gas storage well which comprises a shaft, wherein the outer diameter of the shaft is greater than 273.1mm. The well employs the larger-diameter shaft; the diameter of the shaft exceeds the maximum shaft diameter of 273.1mm in the current national standards; requirements on high gas storage capability are met; when the gas storage capability is definite, the shaft is shortened, so that the whole gas storage well can be fabricated and assembled in a plant and then transported to a site for mounting; the assembly quality is ensured; an assembly yard is not required to be arranged on the site; since the shaft is short, the drilling depth is reduced; and the cost and the construction period are further saved.

Description

technical field [0001] The invention relates to a gas storage well, in particular to a large-diameter gas storage well. Background technique [0002] Oil and gas storage wells are usually composed of wellhead devices, well bottom heads and well shafts. At present, in the construction of gas storage wells, well shafts with small outer diameters are usually used. The existing national oil and gas industry standards state that the outer diameter of well shafts is 177.80 mmz to 273.10 mm. mm. Due to the small diameter of the wellbore, the gas storage capacity is very small. Under the same gas storage capacity, the length of the existing wellbore is longer, which is inconvenient to manufacture and transport. Because of the longer wellbore, the depth of drilling is also increased, which increases the difficulty of construction and construction. cost. [0003] Therefore, there is an urgent need for a gas storage well that can not only meet the requirements of gas storage capacity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/00F17C3/00
Inventor 陈立峰陈学高陈玮晟
Owner SICHUAN PETROLEUM & NATURAL GAS SCI & TECH CORP
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