Fishing Guide for Directing a Skewed Fish in a Wellbore
First Claim
1. A fishing guide assembly for recovery of a skewed fish disposed askew in a larger tubular defined by a wall that is accessible by passage through a smaller tubular, comprising:
- a fishing tool on a support to allow delivery of the fishing tool to the fish;
a guide mounted to a leading end of the fish and selectively actuated after passing, at least in part, through the smaller tubular to move toward a wall of the larger tubular to guide the skewed fish away from the wall and toward said fishing tool for grasping by said fishing tool and removal of the fish through said smaller tubular.
3 Assignments
0 Petitions
Accused Products
Abstract
A guide has an open end and a finger structure preferably of a shape memory alloy. The guide is run in small-diameter configuration through a restriction with a fishing tool, such as an overshot, above it. Once through the restriction, power to heaters on the fingers takes the material past its transition temperature to allow the guide lower end to fan out and surround a skewed fish that is in a slanted position and leaning on a wall of a surrounding tubular that has a larger dimension than the restriction. The bottomhole assembly is then advanced until the fish is captured by the fishing tool and pulled out of the hole. The fingers are forcibly retracted as the assembly is pulled back through the restriction. The guide can use retained fingers with an outward bias to flare out after passing through a restriction, thus acting as a fish guide.
13 Citations
20 Claims
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1. A fishing guide assembly for recovery of a skewed fish disposed askew in a larger tubular defined by a wall that is accessible by passage through a smaller tubular, comprising:
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a fishing tool on a support to allow delivery of the fishing tool to the fish; a guide mounted to a leading end of the fish and selectively actuated after passing, at least in part, through the smaller tubular to move toward a wall of the larger tubular to guide the skewed fish away from the wall and toward said fishing tool for grasping by said fishing tool and removal of the fish through said smaller tubular. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification