Drag block for increasing the fluid resistance of well productio

Details Drag block for increasing the fluid resistance of well productio Drag block for increasing the fluid resistance of well productio

1993-05-07

1994-12-13

Britts, Ramon S.

Wells

Guide for device or conduit

Surrounding existing device or tubing

1662414, E21B 1710

Patent

active

053721926

ABSTRACT:
The present invention pertains to a drag block that is attached over the exterior of, or screwed onto as an integral part of, oil well production tubing to increase the fluid resistance of the tubing. The increased fluid resistance of the tubing slows its descent through an oil or gas well filled or partially filled with fluid, thereby reducing the risk of damage to the casing, tubing or the well itself when a string of production tubing is inadvertently dropped through the well and hits bottom.

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