Wired casing
First Claim
Patent Images
1. A method of wiring casing while drilling with casing, comprising:
- lowering a first casing string with an earth removal member operatively connected to its lower end into an earth formation;
placing wire on the first casing string while lowering the first casing string, thereby creating a wired casing string, wherein the wired casing string includes a conductive path that is at least partially sub-flushed across a connection between a casing section and a coupling;
connecting a second casing string to the first casing string, wherein connecting the second casing string to the first casing string comprises substantially aligning a groove in the second casing string with a groove in the first casing string such that an enlarged portion of the groove in the first casing string is substantially aligned with an enlarged portion of the groove in the second casing string;
lowering the first casing string into the earth formation; and
placing the wire on the second casing string while lowering the first casing string.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention involves a method and apparatus for monitoring conditions downhole and/or manipulating downhole tools by placing electrical wire on a casing string while drilling with casing. Wire is inserted into a groove within the casing string while drilling with the casing string into a formation. The wire connects downhole equipment to surface equipment. Multiple casing strings may be drilled into the formation while wire is simultaneously inserted into a groove therein.
790 Citations
57 Claims
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1. A method of wiring casing while drilling with casing, comprising:
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lowering a first casing string with an earth removal member operatively connected to its lower end into an earth formation; placing wire on the first casing string while lowering the first casing string, thereby creating a wired casing string, wherein the wired casing string includes a conductive path that is at least partially sub-flushed across a connection between a casing section and a coupling; connecting a second casing string to the first casing string, wherein connecting the second casing string to the first casing string comprises substantially aligning a groove in the second casing string with a groove in the first casing string such that an enlarged portion of the groove in the first casing string is substantially aligned with an enlarged portion of the groove in the second casing string; lowering the first casing string into the earth formation; and placing the wire on the second casing string while lowering the first casing string. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of wiring casing while drilling with casing, comprising:
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lowering a first casing string with an earth removal member operatively connected to its lower end into an earth formation; placing a first wire on the first casing string thereby creating a first wired casing string while lowering the first casing string to a first depth within the formation, wherein the first wired casing string includes a conductive path that is at least partially sub-flushed across a connection between a casing section and a coupling; lowering a second casing string with an earth removal member operatively connected to its lower end into the formation; and placing a second wire on the second casing string while lowering the second casing string to a second depth within the formation. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for monitoring conditions within a wellbore by wiring casing, comprising:
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lowering a first casing section to a first depth within a formation; and placing wire on the first casing section while lowering the first casing section, wherein the wire is at least partially sub-flushed to a surface of the first casing section and across a connection between a casing section and a coupling. - View Dependent Claims (24, 25, 26, 27)
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28. An apparatus for use in transmitting signals from within a wellbore to a surface of the wellbore, comprising:
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downhole equipment for sensing information from within the wellbore; surface equipment for processing the information; a wire for transmitting the information from the downhole equipment to the surface equipment; a first tubular comprising a groove therein for at least partially subflushing the wire to a surface of the first tubular; and a second tubular comprising a groove therein for at least partially subflushing the wire to a surface of the second tubular, wherein the first tubular is connected to the second tubular via a coupling and a conductive path is formed between the tubulars, the conductive path is at least partially sub-flushed across the coupling between the tubulars.
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29. A method for monitoring conditions within a wellbore while lowering tubulars into the wellbore, comprising:
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lowering a first tubular into the wellbore; placing wire on the first tubular while lowering the first tubular, wherein the wire is at least partially sub-flushed to a surface of the first tubular; connecting the first tubular to a second tubular via a coupling; lowering the second tubular into the wellbore; and placing wire on the second tubular while lowering the second tubular, wherein the wire is at least partially sub-flushed to a surface of the second tubular, wherein a conductive path is formed between the tubulars and the conductive path is at least partially sub-flushed across the coupling between the first tubular to the second tubular.
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30. A method of drilling with casing, comprising:
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providing a string of wired casing having an earth removal member operatively attached to its lower end, at least a portion of the string of wired casing having a conductive path therethrough, wherein the conductive path is at least partially sub-flushed across a connection between a casing section and a coupling; and operating the earth removal member while lowering the string of wired casing into a formation. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. An apparatus for transmitting one or more signals through a wellbore, comprising:
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a string of wired casing having a conductive path through at least a portion thereof, wherein the conductive path is at least partially sub-flushed across a connection between a casing section and a coupling, wherein the string of wired casing comprises a first casing section connected to a second casing section via the coupling and wherein the conductive path is continuous through the first and second casing sections and the coupling and wherein the conductive oath is housed in a continuous groove formed within the first and second casing sections and the coupling and wherein the continuous groove is enlarged at the connection of the coupling and the second casing section; and an earth removal member operatively attached to a lower end of the string of wired casing, wherein the string of wired casing is disposed within the wellbore. - View Dependent Claims (41, 42)
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43. An apparatus for use in transmitting signals from within a wellbore to a surface of the wellbore, comprising:
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downhole equipment for sensing information from within the wellbore; surface equipment for processing the information; a wire for transmitting the information from the downhole equipment to the surface equipment, wherein the wire is housed in a continuous groove formed within the first casing string and the first casing coupling and the continuous groove comprises an enlarged groove portion of the first casing string substantially aligned with an enlarged groove portion of a first casing coupling; and a first casing string with an earth removal member operatively connected to its lower end, wherein the first casing string houses the wire. - View Dependent Claims (44, 45, 46)
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47. An apparatus for use in transmitting signals from within a wellbore to a surface of the wellbore, comprising:
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downhole equipment for sensing information from within the wellbore; surface equipment for processing the information; a wire for transmitting the information from the downhole equipment to the surface equipment; a first casing section comprising a groove therein for at least partially sub-flushing the wire to the surface of the first casing section; and a second casing section comprising a groove therein for at least partially sub-flushing the wire to the surface of the second casing section, wherein the second casing section is connected to the first casing section and the wire is continuously sub-flushed across the connection of the first casing section to the second casing section, whereby the groove of the first casing section comprises an enlarged portion which connects to an enlarged portion of the groove of the second casing section. - View Dependent Claims (48)
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49. A method of drilling with casing, comprising:
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providing a string of wired casing having an earth removal member operatively attached to its lower end, at least a portion of the string of wired casing having a conductive path therethrough, wherein forming the string of wired casing comprises connecting a first casing section to a second casing section by substantially aligning a groove in the first casing section to a groove in the second casing section, the grooves have conductive paths therein, whereby substantially aligning the grooves comprises substantially aligning an enlarged portion of the groove in the first casing section with an enlarged portion of the groove in the second casing section; and operating the earth removal member while lowering the string of wired casing into a formation. - View Dependent Claims (50, 51, 52, 53, 54, 55)
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56. An apparatus for use in transmitting signals from within a wellbore to a surface of the wellbore, comprising:
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at least one sensor member for sensing information from within the wellbore; a wire for transmitting the information from the sensor member to the surface; a first casing section comprising a groove therein; a second casing section comprising a groove therein, wherein the groove of the first casing section comprises an enlarged portion which at least partially overlaps with an enlarged portion of the groove of the second casing section upon connection of the casing sections, whereby the wire is disposable in the grooves.
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57. An apparatus for transmitting one or more signals through a wellbore, comprising:
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a string of wired casing having a conductive path through at least a portion thereof, wherein the conductive path is at least partially sub-flushed across a connection between a casing section and a coupling wherein the string of wired casing comprises a first casing section connected to a second casing section and wherein the conductive path is continuous through the first and second casing sections wherein the first casing section and the second casing section comprise grooves therein for at least partially sub-flushing the conductive path into a surface of the string of wired casing, wherein the conductive path is continuously sub-flushed across the connected first and second casing sections, wherein the first casing section comprises an enlarged portion of the groove at an end and the second casing section comprises an enlarged portion of the groove at an end, and wherein the ends of the casing sections are connected; and an earth removal member operatively attached to a lower end of the string of wired casing, wherein the string of wired casing is disposed within the wellbore.
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Specification