[특허]Internal riser inspection device and methods of using same

[미국특허] Internal riser inspection device and methods of using same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-033/00 G01N-029/04
출원번호	US-0805709 (2004-03-22)
발명자 / 주소	Harthorn,Larry K. Disher,Christopher B.
출원인 / 주소	Vetco Gray Inc.
대리인 / 주소	Bracewell &
인용정보	피인용 횟수 : 7 인용 특허 : 33

초록 ▼

An inspection apparatus includes an inspection unit that is lowered into vertically supported pipe filled with seawater. The apparatus includes a pipe weld location detector module carried by the inspection unit. The apparatus also includes a rotating time of flight diffusion (TOFD) module and a non-rotating wall thickness module carried by the inspection unit. The module includes a pair of rotatably mounted weld volume inspection transducers rotatable by an operator and adapted to inspect for and obtain data on weld volume defects. The TOFD module has a fluid carrier positioned within the TOFD module and contains an acoustic fluid. The non-rotating wall thickness module also contains an acoustic liquid and includes a plurality of fixedly mounted wall inspection transducers adapted to obtain data on wall thickness of a portion of the pipe.

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That claimed is: 1. A method of inspecting a drilling riser, the method comprising the steps of: (a) lowering the drilling riser from a platform into seawater and allowing the seawater to enter the riser; (b) disconnecting a lower marine riser package of the drilling riser from a blowout preventer and flushing an inner diameter of the drilling riser with a fluid prior to deploying he an inspection apparatus; (c) deploying the inspection apparatus on a line into the drilling riser, the inspection apparatus including at least one acoustical transducer; (d) centralizing the apparatus in the drilling riser with the transducer spaced inward from a wall of the riser by an annular clearance; and (e) periodically causing the transducer to emit an acoustical signal through the seawater in the annular clearance and into the wall of the drilling riser and detecting a return acoustical signal from the wall of the drilling riser. 2. The method according to claim 1, wherein the at least one transducer of step (c) further comprises: a pair of weld volume inspection transducers including a TOFD transmitter transducer adapted to transmit the acoustical signal through a weld volume, and a TOFD receiver transducer positioned adjacent to and spaced apart from the TOFD transmitter transducer along a longitudinal axis of the inspection apparatus and adapted to receive a portion of the acoustical signal, the weld volume inspection transducers rotating during inspection at a circumscribed diameter that is less than the inner diameter of the drilling riser; and a plurality of fixedly mounted non-rotating wall inspection transducers adapted to transmit a second acoustical signal and to receive at least a portion of the second acoustical signal to determine wall thickness while deploying the inspection apparatus. 3. The method according to claim 2, wherein step (e) is performed while not rotating the wall inspection transducers relative to the housing and the drilling riser. 4. A method of inspecting a drilling riser, the method comprising the steps of: (a) lowering the drilling riser from a platform into seawater and allowing the seawater to enter the riser; (b) deploying an inspection apparatus on a line into the drilling riser, the inspection apparatus including at least one acoustical transducer placed within a housing; (c) centralizing the apparatus in the drilling riser with the transducer spaced inward from a wall of the riser by an annular clearance; and (d) periodically causing the transducer to emit an acoustical signal through the housing and through the seawater in the annular clearance and into the wall of the drilling riser and detecting a return acoustical signal from the wall of the drilling riser. 5. The method according to claim 4, further comprising filling the housing with a liquid and equalizing pressure within the housing with hydrostatic pressure of seawater in the riser. 6. The method according to claim 4, wherein the at least one transducer of step (b) further comprises a weld volume inspection transducer including a TOFD transmitter transducer adapted to transmit the acoustical signal through a weld volume and a TOFD receiver transducer adapted to receive a portion of the acoustical signal, the weld volume inspection transducer rotating during inspection at a circumscribed diameter that is less than the inner diameter of the drilling riser. 7. The method according to claim 4, wherein the at least one transducer of step (b) further comprises a plurality of fixedly mounted non-rotating wall inspection transducers adapted to transmit an acoustical signal and to receive at least a portion of the acoustical signal to determine wall thickness while deploying the inspection apparatus. 8. The method according to claim 7, wherein step (d) is performed while not rotating the wall inspection transducers relative to the housing and the drilling riser.

이 특허에 인용된 특허 (33) 인용/피인용 타임라인 분석

Ziskovsky Joseph R. (Shoreview MN) Hassler Leslie A. (Shoreview MN), Annulus measuring device.
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Havira R. Mark (New Fairfield CT), Apparatus and method for acoustically investigating a casing set in a borehole.
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Lodder Marten (Hilversum NLX) De Boer Franciscus S. (Druten NLX), Apparatus for carrying mobile means of inspection in the interior of a tubular body.
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Sugaya Nobuyasu (Tokyo JPX) Kondo Munetaka (Tokyo JPX) Murashita Kikuji (Tokyo JPX) Kobayashi Motoi (Tokyo JPX), Apparatus for inspecting a pipeline.
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Gonzalez Romulo (Slidell LA), Dual concentric string high pressure riser.
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Jenkins Charles F. ; Howard Boyd D., Flexible ultrasonic pipe inspection apparatus.
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Harthorn, Larry K.; Dioquino, Pedro A.; Milligan, Jr., Richard J.; Good, Jason C.; Allen, Neil D.; Romero, Richard D., Internal riser inspection device.
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O\Sullivan Terence P. (Seal Beach CA) Allen William C. (Pasadena CA), Lined casing inspection method.
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Jacobsen, Jostein; Torset, Odd; Lund-Johansen, Øyvind; Skaar, Knut T.; Steinset, Magne Ivar; Søraunet, Arild, Measuring system including positioning and data transfer.
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Girndt Richard J. (P.O. Box 9643 Houston TX 77213), Method and apparatus for removing flaws from internal pipe walls.
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Maltby Philip M. (Tulsa OK) Edwards James S. (Sapulpa OK) Hamilton John C. (Tulsa OK), Method and apparatus for ultrasonic pipeline inspection.
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Goedecke Hartmut (Weilburg/Kubach DEX), Method and device for testing gas carrying pipelines.
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Katahara Keith W. (Allen TX) Siegfried ; II Robert W. (Richardson TX), Method for acoustically measuring wall thickness of tubular goods.
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Moreau Georges (Viriat FRX) Archer Jacques (Chatenay Malabry FRX) Bodson Francis (Givry FRX) Burat Olivier (Saint Remy FRX), Multi-element ultrasonic probe for electronic scanning.
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Rader Dennis (Houston TX), Percussion method and apparatus for the investigation of a casing cement in a borehole.
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Braithwaite Geoffrey C. (Wantage GB2), Pipe inspection apparatus.
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Dufour Martin J. (Crowley LA), Pipe inspection system and method.
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Topping Frederick Victor (3 Kirkton Road Toronto CA), Pipeline inspection apparatus.
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Lorenzi Donald E. (Des Plaines IL) Wagerer Helmut F. (Des Plaines IL) Spevak Lev (Chicago IL), Pipeline inspection device using ultrasonic apparatus for corrosion pit detection.
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Hunt Hugh E. M. (Trinity College Cambridge CB2 1TQ GB2) Kpke Uwe G. (Emmanuel College Cambridge CB2 3AP GB2), Pipeline pig and method of pipeline inspection.
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Hapstack Mark (North Augusta SC) Talarek Ted R. (Augusta GA) Zollinger W. Thor (Martinez GA) Heckendorn ; II Frank M. (Alken SC) Park Larry R. (North Augusta SC), Piping inspection instrument carriage with precise and repeatable position control and location determination.
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Tedder Joseph A. (Windsor CT), Rotating probe head for tube inspection.
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Kiefer Karl F. (Woodlands TX), Scan assembly and method using scan rate modulation.
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de Sterke Arie (Vlaardingen NLX), System for inspecting welded joints in pipe lines by means of ultrasonic waves.
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Triplett William C. (Ingleside TX) Brauer Walter H. (Houston TX) Burke Robert (Corpus Christi TX) Morrow Richard (Mission TX), System for monitoring the condition of a pipeline.
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Triplett William C. (Ingleside TX) Brauer Walter H. (Houston TX) Burke Robert (Corpus Christi TX) Morrow Richard (Mission TX), System for monitoring the condition of a pipeline.
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Saporito Michael J. (Rochester NY) Deleo Salvatore J. (Rochester NY) Lewis Paul A. (E. Bethany NY) Curtis ; III Albert E. (Webster NY) D\Arienzo Joseph (Rochester NY) Roller ; Jr. David P. (Southhamp, Ultrasonic inspection system.
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Petermann Steven G. (Plano TX) Schasteen Thomas (Garland TX), Ultrasonic logging tool with rotating exposed transducer.
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Collingwood John C. (Didcot GB2), Ultrasonic pipe inspection apparatus.
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Harth ; III George Henry (Wadsworth OH) Stevens Donald Meade (Lovingston VA) Hancock Jimmy Wade (Lynchburg VA), Ultrasonic technique for measuring the thickness of cladding on the inside surface of vessels from the outside diameter.
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Knight, Ray; Wells, Jim, Ultrasonic testing system.
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McColskey Joseph D. (Broomfield CO) Dube William P. (Denver CO) Fortunko Christopher M. (Boulder CO) Schramm Raymond E. (Thornton CO) Renken Martin C. (Boulder CO) Teller ; II Cecil M. (San Antonio T, Wall thickness and flow detection apparatus and method for gas pipelines.
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O\Sullivan Terence P. (East Kalimantan CA IDX) Allen William C. (Pasadena CA), Well inspection method.
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[미국특허] Internal riser inspection device and methods of using same 원문보기

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