Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Sectional guide or shaft having means to lock sections in...
Patent
1990-12-13
1992-03-10
Britts, Ramon S.
Boring or penetrating the earth
Means traveling with tool to constrain tool to bore along...
Sectional guide or shaft having means to lock sections in...
175 75, 175101, 175107, E21B 708
Patent
active
050943057
ABSTRACT:
An orientatable adjustable bent sub having a tubular member in the form of a adjustment sleeve, with a first and offset to a primary axis, telescopically receives the first end of the tubular member. By rotation of the adjustment sleeve the offset portion of the adjustment sleeve is adjusted in relation to the offset portion of the tubular member to produce a bend of desired magnitude. The adjustment sleeve is axially moveable between an engaged position and a disengaged position. In the disengaged position the adjustment sleeve is rotatable in relation to the tubular member permitting an adjustment to be made. An orientation sleeve telescopically receives the second end of the tubular member. By rotation of the tubular member within the orientation sleeve the bend created by the positioning of the offset portion of the adjustment sleeve in relation to the offset portion of the tubular member is orientated in a desired direction. The orientation sleeve is axially moveable between an engaged position and a disengaged position. In the disengaged position the orientation sleeve is rotatable in relation to the tubular member permitting an adjustment to be made.
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Britts Ramon S.
Kenneth H. Wenzel Oilfied Consulting Inc.
Schoeppel Roger J.
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