Shock Reduction Tool for a Downhole Electronics Package
First Claim
Patent Images
1. A shock reduction tool for a downhole electronics package, comprising:
- an anchoring tail piece configured to be rotationally and axially fixed within a tubular, wherein upper and lower ends of the tubular are configured to connect to a drill string;
an orienting sleeve comprising a female angular orientation feature;
an oriented adapter rotationally fixed and axially movable with respect to the orienting sleeve, wherein the oriented adapter comprises a through bore and a male angular orientation feature adapted to the orienting sleeve;
a universal bore hole orientation (UBHO) muleshoe sub disposed at an upper end of the oriented adapter; and
a first spring disposed in an annular space between the oriented adapter and the orienting sleeve, wherein the spring is between a first shoulder that is axially fixed to the oriented adapter and a second shoulder that is axially fixed to the orienting sleeve,wherein one of the orienting sleeve and the orienting adapter is rotationally and axially fixed relative to the anchoring tail piece.
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Abstract
A tool string disposed in at least one tubular having upper and lower threaded connections to connect to a drill string. The tool string includes a shock reduction tool, which includes an anchoring tail piece axially and rotationally fixed to the at least one tubular. A universal bore hole orientation (UBHO) muleshoe sub is disposed at an upper end of the shock reduction tool. A downhole electronics package coupled to the UBHO muleshoe sub
36 Citations
20 Claims
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1. A shock reduction tool for a downhole electronics package, comprising:
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an anchoring tail piece configured to be rotationally and axially fixed within a tubular, wherein upper and lower ends of the tubular are configured to connect to a drill string; an orienting sleeve comprising a female angular orientation feature; an oriented adapter rotationally fixed and axially movable with respect to the orienting sleeve, wherein the oriented adapter comprises a through bore and a male angular orientation feature adapted to the orienting sleeve; a universal bore hole orientation (UBHO) muleshoe sub disposed at an upper end of the oriented adapter; and a first spring disposed in an annular space between the oriented adapter and the orienting sleeve, wherein the spring is between a first shoulder that is axially fixed to the oriented adapter and a second shoulder that is axially fixed to the orienting sleeve, wherein one of the orienting sleeve and the orienting adapter is rotationally and axially fixed relative to the anchoring tail piece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A tool string disposed in at least one tubular comprising upper and lower threaded connections to connect to a drill string, the tool string comprising:
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a shock reduction tool comprising an anchoring tail piece axially and rotationally fixed to the at least one tubular; a universal bore hole orientation (UBHO) muleshoe sub disposed at an upper end of the shock reduction tool; and a downhole electronics package coupled to the UBHO muleshoe sub. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A shock reduction tool for a downhole electronics package disposed within a tubular, comprising:
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an oriented housing; an oriented shaft rotationally movable by less than about 10 degrees with respect to the oriented housing; and an upper connection for the downhole electronics package, wherein one of the oriented housing and the oriented shaft is rotationally fixed with respect to the tubular.
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Specification