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US20120222857 |
ASSEMBLY
A transport assembly comprising: an attachment member attachable to a downhole tool; normally two rotatable members, connected to the attachment member, the rotatable members being arranged to... |
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US20140014321 |
Assembly
A downhole transport assembly (100, 101) having first and second members (10, 20) having a common longitudinal axis, at least one of the members (10, 20) being rotatable about the longitudinal... |
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US20110146990 |
BACKOFF SUB AND METHOD FOR REMOTELY BACKING OFF A TARGET JOINT
A backoff sub includes a housing; and a backoff facilitator at least partially within the housing. Capable of adding energy to a system within which the sub is disposable. A method for managing a... |
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US20150361751 |
Jarring Tool
A jarring tool that includes a first portion and a second portion. An impact point is located between the first portion and the second portion. The jarring tool has an internal energy source that... |
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US20100258314 |
Jars for Wellbore Operations
An example of an apparatus for jarring a wellbore tool from an obstruction includes four sub-assemblies in communication with three springs such that the springs may be compressed forcing the... |
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US20120160477 |
LARGE BORE JAR FOR A DRILL STRING
A drill string includes a bit sub mounted to a lower end of a plurality of tubular sections, where at least one tubular section is a jar. The jar and the tubular sections have an inner diameter... |
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US20090166026 |
Jar device for use in coil tubing drilling
The invention relates to a jar operated by fluid pressure, specially designed for use in drilling or maintenance operations carried out in oil or gas wells. The jar comprises a first (1) and a... |
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US20070074867 |
Jar device
A jar for use in a downhole environment comprises a mandrel, a spline body, and a tool body, where the spline body provides a slideable engagement with the mandrel and anvil surfaces for absorbing... |
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US20150129220 |
PUMP ACTUATED JAR FOR DOWNHOLE SAMPLING TOOLS
An apparatus configured to impart a force on a downhole component, having a piston configured to expand from a movement of a drilling fluid in a downhole environment, a weight configured to move... |