TORQUE ANCHOR FOR BLOCKING THE ROTATION OF A PRODUCTION STRING OF A WELL AND PUMPING INSTALLATION EQUIPPED WITH SUCH A TORQUE ANCHOR

摘要

A torque anchor intended to block the rotation of a production string with respect to a casing of a well; the torque anchor comprising a body and anchor cassettes comprising a wheel having a circumference and a wheel spindle supporting said wheel, a contact point of the circumference of the wheel being intended to come into contact with the casing, an opposite point being arranged diametrically opposite the contact point.;For each anchor cassette, the wheel is mounted on the end of the wheel spindle; a positioning angle comprised between 30° and 180° being defined between a first straight line passing through the centre of the casing and the contact point and a second straight line passing through the centre of the casing and the opposite point.

主权项

1. A torque anchor intended to block the rotation of a production string with respect to a casing of a well having a longitudinal axis; the torque anchor comprising:
a body; anchor cassettes borne by said body, each anchor cassette comprising a wheel having a circumference and a wheel spindle supporting said wheel, said wheel spindle having an end; a contact point of said circumference of said wheel being intended to come into contact with said casing, an opposite point being arranged diametrically opposite said contact point, wherein, for each anchor cassette, said wheel is mounted on said end of said wheel spindle; a positioning angle comprised between 30° and 180°, and advantageously between 60° and 90°, being defined between a first straight line and a second straight line, said first straight line passing through said centre of said casing and the contact point, said second straight line passing through said centre of said casing and said opposite point.