Drillstring anchor
A drillstring anchor 200 for reacting torque from a drillstring to a wellbore includes a channel 201 for receiving a downhole portion of a drillstring 202 so as to be rotationally engaged therewith: a gripper; an energy store; and an actuator capable of being driven from the energy store to cause th...
Saved in:
Main Authors | , , , , |
---|---|
Format | Patent |
Language | English |
Published |
16.08.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | A drillstring anchor 200 for reacting torque from a drillstring to a wellbore includes a channel 201 for receiving a downhole portion of a drillstring 202 so as to be rotationally engaged therewith: a gripper; an energy store; and an actuator capable of being driven from the energy store to cause the gripper to adopt one of a first state in which it is urged outwardly for gripping the wellbore and a second, retracted state. Also claimed is a drillstring anchor where there are multiple segments (703, 704, 705, 706, fig7a) disposed along the drillstring anchor which can be driven outwardly independently of each other. |
---|---|
Bibliography: | Application Number: GB20220001938 |