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Static push-leaning rotary guide tool with package

A technology of rotary steering and tools, applied in directional drilling and other directions, can solve the problems of increasing the build-up rate, etc., and achieve the effect of strong build-up ability and large build-up effect

Inactive Publication Date: 2018-11-27
徐芝香
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a key technical indicator of existing rotary steerable tools—the build-up rate—has no advantage over traditional slide-steerable drilling tools. and other positions have to continue to use traditional slide steerable drilling tools to increase the build-up rate

Method used

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  • Static push-leaning rotary guide tool with package
  • Static push-leaning rotary guide tool with package
  • Static push-leaning rotary guide tool with package

Examples

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] Combine below Figure 1 to Figure 6 , the preferred embodiments of the present invention will be described in further detail.

[0033] Such as figure 1 As shown in FIG. 1 , the section of the static push-to-type rotary steerable tool with a package passing through the axis of the drill string 3 is described.

[0034] The protrusion 6 is fixedly connected to one side of the outer periphery of the front end of the outer cylinder 5. When the outer cylinder 5 is laterally stationary relative to the well wall through friction, the protrusion 6 pushes against the well wall on the corresponding side, so that the drill bit 4 is biased to the opposite well wall. Thereby strengthen the ...

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PUM

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Abstract

The invention relates to a drilling tool in the drilling field of petroleum, natural gas and the like, which is a static push-leaning rotary steering tool with a bag. Technical problem: How to increase the effect of oblique construction. Technical proposal: The tool shall fix a protrusion on the outer periphery to push against the borehole wall, and cooperate with the push-against biasing mechanism to increase the total unilateral slope. Technical features: including, mandrel, biasing mechanism, outer cylinder, base, protrusion; The rear end of the base is fixedly connected with the drill string; The base is fixedly connected with a mandrel, and the front end of the mandrel is fixedly connected with a drill bit; A sleeve base with a rotatable rear end of the outer cylinder and a sleeve mandrel with a rotatable front end of the outer cylinder; The number of the biasing mechanism is three sets, and the biasing mechanism is uniformly arranged at the outer periphery of the front end of theouter cylinder; The protrusion is fixedly connected to one side of the outer circumference of the front end of the outer cylinder; The invention has the advantages that the protrusion can be biased,and the biasing mechanism A positioned in the protrusion can also be biased, and the two can be superposed to produce a greater inclination effect.

Description

technical field [0001] The invention relates to a drilling tool in the field of oil, natural gas and other drilling, and is a static pushing type rotary steering tool with a bag. Background technique [0002] With the development of ultra-deep wells, high-difficulty directional wells, cluster wells, horizontal wells, extended-reach wells, branch wells and wells with complex three-dimensional structures, rotary steering tools have better hole purification effects, higher precision of wellbore trajectory control, and displacement The extension ability is stronger, gradually replacing the traditional sliding guide tool. However, a key technical indicator of existing rotary steerable tools—the build-up rate—has no advantage over traditional slide-steerable drilling tools. Such positions have to continue to use traditional slide steerable drilling tools to increase the build-up rate. [0003] Therefore, it is necessary to invent a new rotary steerable tool to increase the kick-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/06
CPCE21B7/06
Inventor 邱世军
Owner 徐芝香