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Electrically activating a jarring tool

A tool, jarring technology, applied in the direction of wellbore/well components, surveying, construction, etc., can solve the problem of affecting and hindering the proper control of jarring tool actuation

Active Publication Date: 2013-06-19
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can be difficult in deviated or horizontal wells where friction between the carrier structure and the side of the borehole can prevent proper control of the actuation of the jarring tool
Additionally, conventional jarring tools are subject to operational variability and control due to changes in downhole conditions in the borehole

Method used

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  • Electrically activating a jarring tool
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  • Electrically activating a jarring tool

Examples

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Embodiment Construction

[0024] In the following description, numerous details are set forth in order to provide an understanding of the invention. It should be noted that such practical implementations, numerous Execution process - concrete decisions. Moreover, it will be appreciated that such a developmental effort might be complex and time consuming, but would be a routine procedure for those of ordinary skill in the art having the benefit of this disclosure, and that many variations or modifications from the illustrated embodiments It's all possible. Furthermore, the description and examples are presented for the purpose of illustrating preferred embodiments of the invention only and should not be considered as limiting the scope and applicability of the invention.

[0025] As used herein, the terms "above" and "below"; "upper" and "downward"; "upper" and "lower"; "upwardly" and "downward"; Other similar terms with respect to positions above or below are used in this description to clearly illu...

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PUM

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Abstract

A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further comprise operating a hydraulic mechanism in response to electrical activation of the jarring tool to cause a first member of the jarring tool to be moved to collide with a second member of the jarring tool to apply the impact force. Also, the method may involve electrically activating the jarring tool by communicating at least one command over at least one electrical conductor to the jarring tool.

Description

technical field [0001] The present invention relates generally to electrically activated striking tools. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Various operations may be performed in a well using a tool string attached to a carrier structure (e.g., slickline, slickline, coiled tubing, jointed tubing, drill pipe, etc.) on run into the well. In some instances, the tool string may become stuck in the wellbore, where the well operator is unable to apply sufficient pulling force through the carrier structure to unjam the stuck tool string. [0004] In order to unjam a toolstring stuck in the wellbore, a jarring tool is typically provided in the toolstring. Shock tools are capable of applying an impact force that increases the tensile force applied to the carrier structure. The increased impact force is transmitted to other tools in the tool ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B31/107E21B47/12
CPCE21B31/113E21B31/107E21B47/12E21B47/123E21B47/135
Inventor 肯尼斯·A·墨利阿蒂莱哈特·赛格恩艾克
Owner PRAD RES & DEV LTD