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Downhole adjustable bent housing for directional drilling

  • US 6,394,193 B1
  • Filed: 07/19/2000
  • Issued: 05/28/2002
  • Est. Priority Date: 07/19/2000
  • Status: Expired
First Claim
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1. A directable apparatus for downhole directional drilling comprising:

  • a mandrel housing having a mandrel disposed within the mandrel housing, a biasing member for retracting the mandrel, and a collar coupling the mandrel with the mandrel housing to control pressure actuated extension of the mandrel between a first extended position and a second extended position; and

    a directable housing pivotally coupled to the mandrel housing, the directable housing having an articulating member pivotally secured therein, wherein the articulating member has a passage therethrough with a first portion for receiving the mandrel in the first extended position to lock the directable housing at a first angle relative to the mandrel housing and a second portion for receiving the mandrel in the second extended position to lock the directable housing at a second angle relative to the mandrel housing.

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