Rotary distribution compound impactor

A technology of impactor and flow distribution, which is applied in the field of petroleum exploration, can solve problems such as too many flow channels, the life of the commutator cannot be effectively guaranteed, and the normal use of tools is affected, so as to improve the rock breaking efficiency

Active Publication Date: 2019-11-15
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the large number of flow channels inside the structure, the erosion problem is serious, and the life of the commutator cannot be effectively guaranteed, which will seriously affect the normal use of the tool in the end.

Method used

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  • Rotary distribution compound impactor
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  • Rotary distribution compound impactor

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Embodiment Construction

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0061] Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0062] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertic...

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Abstract

The invention provides a rotating flow-distributing type compound impactor. Through two first working faces and two second working faces arranged on the upper portion of an abnormal shape drill base,the two first working faces are planes parallel to a middle axis face of the abnormal shape drill base and the two second working faces are arc faces; two third working faces and two forth working faces are arranged on the bottom of a reciprocating impacting element, the two third working faces are the planes matched with two first working faces and the two forth working faces are the arc faces matched with the two second working faces; the reciprocating impacting element is in contact with the abnormal shape drill base under the action of high-pressure drilling fluid, single axial direction impacting of a reciprocating impacting unit is transformed into compound movement of the axial direction and circumference of the abnormal shape drill base, so that the rock breaking mode of the drillis changed; and through the condition that impacting load of the axial direction and the circumference are exerted at the same time for the stratum, rock breaking efficiency of the drill is greatly improved.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a rotary distribution type composite impactor. Background technique [0002] With the gradual development of oil production towards deep wells and ultra-deep wells, in the process of oil drilling, except for the necessary non-drilling time, the time spent on pure drilling accounts for more than 80% of the entire operation time. Therefore, the ROP of the drill bit Improvement is conducive to the reduction of drilling time. The improvement of ROP can not only improve the economic efficiency of drilling and reduce the cost of drilling, but also in some special cases, fast drilling and timely sealing of special formations are more conducive to avoiding downhole accidents. For this reason, in the drilling operations of deep wells and ultra-deep wells, impactors are generally arranged on the drill bit to increase the drilling speed. [0003] In the prior art, the drilli...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): E21B4/14
CPCE21B4/14
Inventor柳贡慧温晓松李军查春青
OwnerCHINA UNIV OF PETROLEUM (BEIJING)