Data transmission element for downhole drilling components
First Claim
1. A data transmission element for downhole components, comprising:
- a generally U-shaped annular housing having an inner wall undercut proximate its open end;
a generally U-shaped MCEI element comprising an inner wall, an outer wall; and
an open end, an outer wall recess proximate the open end and an inner wall protrusion defining the open end;
the MCEI element being disposed within the annular housing such that the inner wall of the annular housing and the outer wall of the MCEI element form a gap and the recess is generally opposite the undercut forming a pocket wider than the gap there between;
an insulated conductor being disposed within the MCEI element;
wherein the gap, the pocket, and the MCEI element are filled with a polymer such that the polymer affixes the MCEI element within the generally U-shaped annular housing and the insulated conductor within the MCEI element.
8 Assignments
0 Petitions
Accused Products
Abstract
A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.
134 Citations
23 Claims
-
1. A data transmission element for downhole components, comprising:
-
a generally U-shaped annular housing having an inner wall undercut proximate its open end; a generally U-shaped MCEI element comprising an inner wall, an outer wall; and
an open end, an outer wall recess proximate the open end and an inner wall protrusion defining the open end;the MCEI element being disposed within the annular housing such that the inner wall of the annular housing and the outer wall of the MCEI element form a gap and the recess is generally opposite the undercut forming a pocket wider than the gap there between; an insulated conductor being disposed within the MCEI element; wherein the gap, the pocket, and the MCEI element are filled with a polymer such that the polymer affixes the MCEI element within the generally U-shaped annular housing and the insulated conductor within the MCEI element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification
-
- Resources
-
Current AssigneeIntelliServ, LLC (NOV, Inc.)
-
Original AssigneeIntelliserv, Inc. (NOV, Inc.)
-
InventorsHall, David R., Fox, Joe, Dahlgren, Scott, Hall, H. Tracy Jr., Pixton, David S., Briscoe, Michael, Sneddon, Cameron
-
Primary Examiner(s)Nguyen, Tuyen T
-
Application NumberUS10/707,234Publication NumberTime in Patent Office794 DaysField of Search336/83, 336/84.R, 336/84.M, 336/84.C, 336/90, 336/107, 336/132, 439191-194, 285/328, 285/333, 285/332.4US Class Current336/90CPC Class CodesE21B 17/0285 characterised by electrical...E21B 47/13 by electromagnetic energy, ...F16L 15/001 with conical threadsF16L 25/01 specially adapted for reali...H01R 13/533 Bases, cases made for use i...
