Side entry sub with tension release wireline cable clamp
First Claim
Patent Images
1. A side entry sub, which comprises:
- an elongated tubular member having a pair of ends and a cylindrical wall and a longitudinal bore;
a port formed in said wall intermediate said ends for running a cable from the exterior of said tubular member into said longitudinal bore;
and clamp means for preventing movement of said cable axially with respect to said tubular member, said clamp means being releasable responsive to a tension force on said cable greater than a preselected amount to allow said cable to move freely axially with respect to said tubular member with said clamp means being retained with said elongated tubular member after release of said cable.
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Accused Products
Abstract
Disclosed is a side entry sub with tension release wireline cable clamp. The side entry sub includes a tubular member having a port for the passage of the wireline cable into the interior of the tubular member. A cable clamp holder is positioned on the tubular member adjacent the port. The cable clamp holder has an axially extending passage with a cable clamp mounted therein. The cable clamp includes two clamp parts that are adapted to grip the cable therebetween. The cable clamp parts are movable from a gripping position to a releasing position responsive to axial movement with respect to each other in the clamp holder passage.
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Citations
11 Claims
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1. A side entry sub, which comprises:
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an elongated tubular member having a pair of ends and a cylindrical wall and a longitudinal bore; a port formed in said wall intermediate said ends for running a cable from the exterior of said tubular member into said longitudinal bore; and clamp means for preventing movement of said cable axially with respect to said tubular member, said clamp means being releasable responsive to a tension force on said cable greater than a preselected amount to allow said cable to move freely axially with respect to said tubular member with said clamp means being retained with said elongated tubular member after release of said cable. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A side entry sub, which comprises:
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an elongated tubular member having a pair of ends and a cylindrical wall and a longitudinal bore; a port formed in said wall intermediate said ends for running a cable from the exterior of said tubular member into said longitudinal bore; a clamp holder positioned on said tubular member; a cable clamp axially movably mounted with said clamp holder, said cable clamp including a first clamp part and a second clamp part, each of said first and second clamp parts including a cable gripping surface, said first and second clamp parts being movable with respect to each other from a gripping position wherein said cable gripping surfaces grip said cable to a releasing position werein said cable gripping surfaces release said cable; releasable means for fixing said cable clamp in a first axial position in said clamp holder with said first and second clamp parts in said gripping position, said releasable means being releasable upon the application of a preselected axial force to said cable clamp to allow said cable clamp to move axially in said clamp holder; and means for stopping said cable clamp at a second axial position in said clamp holder with said first and second cable clamp parts in said releasing position. - View Dependent Claims (8, 9, 10)
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11. A side entry sub, which comprises:
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an elongated tubular member having a pair of ends and a cylindrical wall and a longitudinal bore; a port formed in said wall intermediate said ends for running a cable from the exterior of said tubular member into said longitudinal bore; a clamp holder positioned on said tubular member axially spaced apart from said port, said clamp holdering including an axially extending passage having a first end and an axially spaced apart second end; a first clamp part axially sliding mounted in said passage of said clamp holder, said first clamp part having first and second ends with the axial length therebetween less than the axial length of said passage of said clamp holder; a second clamp part axially slidingly mounted in said passage of said clamp holder laterally adjacent said first clamp part, said second clamp part having first and second ends with the axial length therebetween less than the axial length of said clamp holder, said first and second clamp parts being of unequal length; means for connecting together said first and second clamp parts such that when said first and second clamp parts are moved axially with respect to each other, they move from a gripping relationship with respect to each other to a releasing relationship with respect to each other; and releasable means for fixing one of said first and second clamp parts against axial movement in said clamp holder passage with the first end of at least one of said first and second clamp parts in abutment with said first end of said clamp holder passage, said releasable means being releasable to allow said first and second clamp parts to move axially in said clamp holder passage with the second end of at least the other of said first and second clamp parts moving into abutment with said second end of said clamp holder passage.
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Specification