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Vortex drainage gas production device and pipe column

A drainage gas recovery and vortex technology, applied in the direction of drilling pipe, casing, production fluid, etc., can solve the problems of complex device structure, formation pollution, etc., achieve reliable connection, reduce pipeline pressure, and reduce the effect of fluid energy attenuation speed

Pending Publication Date: 2021-02-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, equipment such as electric submersible pumps, jet pumps, and screw pumps can be used to complete drainage and gas recovery, but this process requires external energy and the structure of the device used is complicated; foam drainage and gas recovery can also be used, but this This process pollutes the formation

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  • Vortex drainage gas production device and pipe column
  • Vortex drainage gas production device and pipe column
  • Vortex drainage gas production device and pipe column

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing.

[0030] figure 1 Shown is a vortex drainage gas recovery device 100 according to the present invention. Such as figure 1 As shown, the device 100 includes an upper joint 1 , a vortex rod 2 and a first clip 4 . Wherein, the upper joint 1 mainly plays a connecting role and is used for connecting with other tools. The vortex rod 2 is fixedly arranged on the lower end of the upper joint 1, and a spiral groove 21 is arranged on the outer wall of the upper end. During drainage and gas recovery construction, after the device 100 is lowered into the wellbore, the groove 21 is used to form a spiral flow channel with the outer wall of the second clamping member 200 (details will be described later). The first hook 4 is sleeved on the outer wall of the lower end of the vortex rod 2 under the groove 21 , and is used to cooperate with the second hook 200 , so as to achieve snapping a...

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Abstract

The invention provides a vortex drainage gas production device and a pipe column. The vortex drainage gas production device comprises an upper joint, a vortex rod and a first clamping and hanging part; the vortex rod is fixedly arranged at the lower end of the upper joint, and a spiral groove is formed in the outer wall of the upper end of the vortex rod; the first clamping and hanging part is arranged on the position, below the groove, of the outer wall of the lower end of the vortex rod; and the vortex drainage gas production device is arranged in a rear-mounted mode, the second clamping andhanging parts capable of being matched with the vortex drainage gas production device can be put into a shaft firstly, the vortex drainage gas production device can be put into the shaft only when drainage and gas production are needed, and the device can be matched with the second clamping and hanging parts to generate a rotational flow channel, external energy is not needed, and the process utilizing the device does not pollute the stratum and is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of downhole tools for natural gas wells, in particular to a vortex drainage gas recovery device and a pipe string. Background technique [0002] Drainage gas recovery technology is one of the important measures to tap the production potential of gas wells in water-gas reservoirs and improve the recovery rate of gas reservoirs. [0003] In the prior art, equipment such as electric submersible pumps, jet pumps, and screw pumps can be used to complete drainage and gas recovery, but this process requires external energy and the structure of the device used is complicated; foam drainage and gas recovery can also be used, but this This process pollutes the ground. [0004] Therefore, it is a technical problem to be solved urgently to need a vortex drainage and gas recovery device with a simple structure and which will not cause formation pollution. Contents of the invention [0005] Aiming at part or all of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B17/22
CPCE21B43/20E21B17/22
Inventor 付先惠曾兴平潘健王全许剑赵哲军黄万书李莉
Owner CHINA PETROLEUM & CHEM CORP
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