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Turbine stator for turbine drill

A technology of turbo drilling tools and turbines, applied in drilling tools, drilling equipment, earth-moving drilling, etc., can solve the problems of easy breakage of blades and insufficient utilization of liquid potential energy, and achieve long service life, high potential energy utilization rate, and high efficiency. Effect

Inactive Publication Date: 2013-12-11
CHENGDU KESHENG PETROLEUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a turbine stator for a turbodrill, which is used to solve the problems of insufficient utilization of the liquid potential energy and easy fracture of the blades of the conventional turbodrill

Method used

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  • Turbine stator for turbine drill
  • Turbine stator for turbine drill
  • Turbine stator for turbine drill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] see figure 1 , figure 2 and image 3 , a turbine stator for a turbodrill, including an inner ring 2 and an outer ring 1 sleeved at the outer end of the inner ring 2, the inner ring 2 and the outer ring 1 are connected by a set of stator blades, and the set of stator blades consists of several The stator blades 3 with a crescent-shaped cross section are formed, and the stator blades 3 are evenly distributed between the inner ring 2 and the outer ring 1 with the central axis of the inner ring 2 as the symmetrical axis, and the inner arc surface of the stator blades 3 is the working surface. Surface 4.

[0019] There are 16-32 stator blades 3 .

[0020] The horizontal distance between any two adjacent stator blades 3 is greater than 12 millimeters and less than 21 millimeters.

[0021] The arc length of the working surface 4 of the stator blade 3 is 1-1.2 times of the horizontal pitch.

[0022] The radian of the working surface 4 of the stator blade 3 is 80°-100°.

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PUM

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Abstract

The invention discloses a turbine stator for a turbine drill. The turbine stator for the turbine drill comprises an inner ring (2) and an outer ring (1), wherein the outer end of the inner ring (2) is sleeved with the outer ring (1). The inner ring (2) and the outer ring (1) are connected through a stator blade set, and the stator blade set is composed of a plurality of stator blades (3) with the crescent cross sections. With the axis of the inner ring (2) as the axis of symmetry, the stator blades (3) are evenly distributed between the inner ring (2) and the outer ring (1), and the inner side arc surfaces of the stator blades (3) are working surfaces (4). The turbine stator for the turbine drill is high in potential energy utilization rate, high in strength, resistant to abrasion, long in service life and high in efficiency.

Description

technical field [0001] The invention relates to a petroleum drilling tool accessory, in particular to a turbine stator for a turbo drilling tool, and belongs to the field of petroleum machinery. Background technique [0002] The working condition of the turbodrill is relatively harsh in the underground. The drilling mud flow directly hits the turbine blade at high speed to obtain energy, thereby driving the drill bit connected to it to rotate the well. The turbodrill mainly includes a turbine stator, a turbine rotor, a main shaft, and a thrust Bearings, middle bearings, lower bearings and housings. When drilling, the drill pipe does not move, and the turbine rotor drives the main shaft to rotate, so it has many advantages such as high drilling speed, high efficiency and short drilling time, and reduces the wear and accidents of the drill pipe and casing. [0003] The turbine stator of today's turbodrill is subjected to a large impact force during use, and it is prone to br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B12/00E21B4/00
Inventor 贺昶明
Owner CHENGDU KESHENG PETROLEUM TECH
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