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Radial well steering device with packing function

A steering device and radial well technology, applied in the field of oil drilling, can solve the problems of low economic benefit, low single well output and high operating cost

Inactive Publication Date: 2021-04-30
袁海滨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in recent years, the proportion of low-permeability reservoirs in oil and gas field development has gradually increased, and low-permeability reservoirs are restricted by their own reservoir geological conditions and process technology, showing low single-well production, high operating costs, and economic benefits. Low (or even negative benefit) and other characteristics make a large number of low-permeability reservoirs unable to be economically exploited
Therefore, there is a lack of a device that can realize the production of low-permeability reservoirs after the end of traditional deep mining reservoirs

Method used

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  • Radial well steering device with packing function
  • Radial well steering device with packing function
  • Radial well steering device with packing function

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Embodiment Construction

[0043] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0044] according to Figure 1-6 As shown, the embodiment of the present invention provides a radial well steering device with isolation function, including: downhole pipeline 1, fixed rod 2 and isolation mechanism,

[0045] The downhole pipeline 1 is set as hollow, and a reciprocating fixed rod 2 is arranged inside. The end of the fixed rod 2 is provided with an isolation mechanism, and a steering connection block 3 is arranged between the isolation mechanisms. The connecting block 3 is used to convert the longitudinal working section of the downhole pipeline 1 into a transverse working section.

[0046] The sealing mechanism includes: a sealing ring 4 and a second...

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Abstract

The invention provides a radial well steering device with a packing function. The radial well steering device with the packing function comprises a downhole pipeline, a fixing rod and packing mechanisms; the downhole pipeline is hollow; the fixing rod which reciprocates is arranged in the downhole pipeline; the packing mechanisms are arranged at the ends of the fixing rod; a steering connecting block is arranged between the packing mechanisms; and the steering connecting block is used for converting a longitudinal working section of the downhole pipeline into a transverse working section. The device is used for achieving exploitation of low-permeability oil reservoirs after traditional deep exploitation of the oil reservoirs is finished.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling, in particular to a radial well steering device with an isolation function. Background technique [0002] At present, in recent years, the proportion of low-permeability reservoirs in oil and gas field development has gradually increased, and low-permeability reservoirs are restricted by their own reservoir geological conditions and process technology, showing low single-well production, high operating costs, and economic benefits. Low (or even negative benefit) and other characteristics make a large number of low-permeability reservoirs unable to be economically exploited. Therefore, there is a lack of a device that can realize the exploitation of low-permeability reservoirs after the end of traditional deep exploitation of reservoirs. Contents of the invention [0003] The invention provides a radial well steering device with an isolation function, which is used to realize the expl...

Claims

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Application Information

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IPC IPC(8): E21B7/04E21B33/128
CPCE21B7/04E21B33/128
Inventor 袁海滨
Owner 袁海滨
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