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Compound Vibration Impactor

A technology of composite vibration and impactor, which is applied in the direction of drilling with vibration, vibration generating device, wellbore/well components, etc., can solve the problems such as drilling impactor is not suitable for the position where the deep formation is difficult to drill, so as to improve the efficiency of rock breaking. Effect

Active Publication Date: 2020-10-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, existing drilling hammers are not suitable for deep formations where drilling is difficult

Method used

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  • Compound Vibration Impactor
  • Compound Vibration Impactor
  • Compound Vibration Impactor

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Embodiment Construction

[0035] 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. 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.

[0036] The purpose of the present invention is to provide a composite vibratory impactor to solve the problems of strong abrasiveness, interlaced soft and hard layers, poor penetration effect of the drill bit into the formation, serious slippage of the PDC drill bit during drilling, and quick failure of the drill bit in the current drilling. ...

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Abstract

The invention provides a composite vibrating impactor. The composite vibrating impactor comprises a shell, a flow guiding cup, a transmission connector and a torsion impactor body. The transmission connector is a hollow pipe body and comprises a connector part and a connecting part, and the diameter of the connecting part is smaller than that of the connector part. The shell is a hollow pipe body,the connecting part of the transmission connector is inserted into the shell, and the connector part of the transmission connector is clamped at the first end of the shell to be fixedly connected with the shell. The flow guiding cup and the torsion impactor body are both located in the shell. A liquid inlet of the flow guiding cup is connected with the inner side of the second end of the shell, and a liquid outlet of the flow guiding cup is connected with the liquid inlet end of the torsion impactor body. The liquid outlet end of the torsion impactor body extends into the connecting part of the transmission connector. The torsion impactor body is used for circumferential vibration and drives the transmission connector to generate longitudinal vibration. Through the composite vibrating impactor, circumferential vibrating impacting and longitudinal vibrating impacting can be achieved simultaneously, the composite vibrating impactor is suitable for the positions, hard to drill, of deep stratums such as the soft-hard staggering stratum, and the rock breaking efficiency of a drill bit is improved.

Description

technical field [0001] The invention relates to oil production equipment, in particular to a composite vibration impactor. Background technique [0002] With the development of oil exploration and development in my country, the exploration and development of new areas continue to expand, the depth of oil production wells continues to deepen, the formations entered are getting older, the formations encountered are becoming more and more complex, the rocks are becoming harder and harder, and power is lost along the way. Large, the pressure holding effect of the liquid column on the bottom of the well is obvious, and the drilling speed is slow, which seriously restricts the process of oil and gas field development. Therefore, how to improve the efficiency of drilling and breaking rock is an urgent problem to be solved. [0003] On the other hand, liquids such as drilling fluids have higher energy transfer efficiency than solids such as pipe strings, and can transfer sufficient ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B28/00E21B7/24
CPCE21B7/24E21B28/00
Inventor 王延民陈世春梁红军迟军贾红军邱晓宁李卫东黄海涛丁峰朱江波徐国何班晓维
Owner PETROCHINA CO LTD
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