MX2018001510A - Evaluacion de conexion autonoma y deteccion automatizada de bordes para el montaje de tubulares. - Google Patents
Evaluacion de conexion autonoma y deteccion automatizada de bordes para el montaje de tubulares.Info
- Publication number
- MX2018001510A MX2018001510A MX2018001510A MX2018001510A MX2018001510A MX 2018001510 A MX2018001510 A MX 2018001510A MX 2018001510 A MX2018001510 A MX 2018001510A MX 2018001510 A MX2018001510 A MX 2018001510A MX 2018001510 A MX2018001510 A MX 2018001510A
- Authority
- MX
- Mexico
- Prior art keywords
- tubular
- automated
- torque
- shoulder detection
- makeup
- Prior art date
Links
- 238000011156 evaluation Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 title 1
- 238000000034 method Methods 0.000 abstract 3
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/165—Control or monitoring arrangements therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/165—Control or monitoring arrangements therefor
- E21B19/166—Arrangements of torque limiters or torque indicators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/10—Indicators for correct coupling
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Earth Drilling (AREA)
Abstract
Un método para conectar un primer tubular roscado a un segundo tubular roscado que incluye acoplar las roscas de los tubulares y girar el primer tubular con relación al segundo tubular para montar una conexión roscada. El método además incluye, durante el montaje de la conexión roscada: medir el tiempo, medir el torque aplicado a la conexión y medir las vueltas del primer tubular. El método además incluye utilizar un controlador lógico programable para: evaluar al menos una de las vueltas medidas, el torque medido y el tiempo medido para al menos uno de una discontinuidad, un pico de torque y una caída de torque y aceptar o rechazar la conexión con base en la evaluación.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762454513P | 2017-02-03 | 2017-02-03 | |
US15/445,361 US10422450B2 (en) | 2017-02-03 | 2017-02-28 | Autonomous connection evaluation and automated shoulder detection for tubular makeup |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2018001510A true MX2018001510A (es) | 2018-11-09 |
Family
ID=61132239
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2018001510A MX2018001510A (es) | 2017-02-03 | 2018-02-02 | Evaluacion de conexion autonoma y deteccion automatizada de bordes para el montaje de tubulares. |
MX2021014809A MX2021014809A (es) | 2017-02-03 | 2018-02-02 | Evaluación de conexión autónoma y detección automatizada de bordes para el montaje de tubulares. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2021014809A MX2021014809A (es) | 2017-02-03 | 2018-02-02 | Evaluación de conexión autónoma y detección automatizada de bordes para el montaje de tubulares. |
Country Status (5)
Country | Link |
---|---|
US (2) | US10422450B2 (es) |
EP (3) | EP3358124B1 (es) |
AU (3) | AU2018200742B2 (es) |
CA (1) | CA2993571C (es) |
MX (2) | MX2018001510A (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10844675B2 (en) | 2018-12-21 | 2020-11-24 | Weatherford Technology Holdings, Llc | Autonomous connection makeup and evaluation |
US11441366B2 (en) | 2019-07-24 | 2022-09-13 | Nabors Drilling Technologies Usa, Inc. | Spinner with consumable sleeve |
CN110955807B (zh) * | 2019-12-03 | 2022-10-18 | 金陵科技学院 | 一种扭矩曲线图的拐点检测方法 |
CA3103464A1 (en) | 2019-12-20 | 2021-06-20 | Nabors Drilling Technologies Usa, Inc. | Spinner wear detection |
CA3197327A1 (en) * | 2020-09-29 | 2022-04-07 | Transocean Sedco Forex Ventures Limited | Robotic system for making or breaking a riser |
WO2022140593A1 (en) * | 2020-12-23 | 2022-06-30 | Vermeer Manufacturing Company | Horizontal directional drilling system with drill string breakout monitoring |
US20220326678A1 (en) * | 2021-04-13 | 2022-10-13 | Weatherford Technology Holdings, Llc | Real time detection and reaction to anomalies in threaded connection make-up |
FR3127567B1 (fr) * | 2021-09-28 | 2023-08-25 | Vallourec Oil & Gas France | Procédé optimisé d’évaluation de la qualité de raccordement de deux composants tubulaires |
CN114687678A (zh) * | 2022-04-02 | 2022-07-01 | 西安石油大学 | 钻杆连接及拆卸过程螺纹故障检测和质量评估方法及系统 |
Family Cites Families (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3368396A (en) | 1964-09-14 | 1968-02-13 | Exxon Production Research Co | Assembling pipe strings with leak-tight joints |
DE1816936B2 (de) | 1968-12-24 | 1972-12-21 | Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal | Vorrichtung zur gleichzeitigen uebertragung mehrerer signale von einem zeitweilig umlaufenden maschinenteil auf ein feststehendes teil |
US3745820A (en) | 1969-04-04 | 1973-07-17 | Exxon Production Research Co | Leak proof threaded connections |
US3855857A (en) | 1973-05-09 | 1974-12-24 | Schlumberger Technology Corp | Force-measuring apparatus for use in a well bore pipe string |
US4008773A (en) | 1975-05-19 | 1977-02-22 | Standard Pressed Steel Co. | Tightening system |
US4106176A (en) | 1977-04-06 | 1978-08-15 | Ingersoll-Rand Company | Method and apparatus for fastener tensioning |
US4091451A (en) | 1977-04-26 | 1978-05-23 | Weatherford/Lamb, Inc. | Method of and apparatus for making up a threaded connection |
US4365402A (en) | 1978-09-12 | 1982-12-28 | Baker International Corporation | Method for counting turns when making threaded joints |
US4176436A (en) | 1978-09-12 | 1979-12-04 | Baker International Corporation | Method and apparatus for counting turns when making threaded joints |
US4402052A (en) | 1981-04-10 | 1983-08-30 | Baker International Corporation | Apparatus for making threaded joints incorporating a make-up speed controller |
US4404559A (en) | 1981-05-26 | 1983-09-13 | Battelle Memorial Institute | Rotative power and signal coupling |
FR2522144A1 (fr) | 1982-02-24 | 1983-08-26 | Vallourec | Procede et dispositif pour s'assurer du vissage correct d'un joint tubulaire comportant une butee de limitation de vissage |
US5263748A (en) | 1982-05-19 | 1993-11-23 | Carstensen Kenneth J | Couplings for standard A.P.I. tubings and casings |
US4738145A (en) * | 1982-06-01 | 1988-04-19 | Tubular Make-Up Specialists, Inc. | Monitoring torque in tubular goods |
GB8326736D0 (en) | 1983-10-06 | 1983-11-09 | Salvesen Drilling Services | Analysis of torque applied to joint |
DD252287A3 (de) | 1985-06-20 | 1987-12-16 | Leipzig Chemieanlagen | Verfahren zum anziehen oder loesen schraubbarer verbindungen |
US4715451A (en) | 1986-09-17 | 1987-12-29 | Atlantic Richfield Company | Measuring drillstem loading and behavior |
US4875530A (en) | 1987-09-24 | 1989-10-24 | Parker Technology, Inc. | Automatic drilling system |
CA1302391C (en) | 1987-10-09 | 1992-06-02 | Keith M. Haney | Compact casing tongs for use on top head drive earth drilling machine |
GB8901918D0 (en) | 1989-01-28 | 1989-03-15 | Franks Casing Crews Uk Limited | Control system |
EP0465731B1 (en) | 1990-07-10 | 1997-08-20 | Services Petroliers Schlumberger | Method and apparatus for determining the torque applied to a drillstring at the surface |
FR2668198B1 (fr) | 1990-10-19 | 1997-01-10 | Elf Aquitaine | Tete d'injection motorisee munie d'un ensemble de mesure dynamometrique. |
US5130700A (en) | 1991-03-04 | 1992-07-14 | Snap-On Tools Corporation | Electronic torque wrench and overshoot compensation circuit therefor |
US5245877A (en) | 1991-03-12 | 1993-09-21 | Weatherford U.S., Inc. | Tong load cell assembly |
US5315501A (en) | 1992-04-03 | 1994-05-24 | The Stanley Works | Power tool compensator for torque overshoot |
US5402688A (en) | 1993-03-17 | 1995-04-04 | Sumitomo Metal Industries, Ltd. | Method and apparatus for determining the tightened condition of a pipe joint |
US5637968A (en) | 1993-10-25 | 1997-06-10 | The Stanley Works | Power tool with automatic downshift feature |
US6536520B1 (en) | 2000-04-17 | 2003-03-25 | Weatherford/Lamb, Inc. | Top drive casing system |
US6742596B2 (en) | 2001-05-17 | 2004-06-01 | Weatherford/Lamb, Inc. | Apparatus and methods for tubular makeup interlock |
US6944247B2 (en) | 1999-11-19 | 2005-09-13 | Texas Instruments Incorporated | Plural circuit selection using role reversing control inputs |
US6212763B1 (en) * | 1999-06-29 | 2001-04-10 | Frederic M. Newman | Torque-turn system for a three-element sucker rod joint |
US6241032B1 (en) | 1999-09-07 | 2001-06-05 | Thomas E. Falgout, Sr. | One-way drill string clutch |
US7028585B2 (en) | 1999-11-26 | 2006-04-18 | Weatherford/Lamb, Inc. | Wrenching tong |
US6814149B2 (en) | 1999-11-26 | 2004-11-09 | Weatherford/Lamb, Inc. | Apparatus and method for positioning a tubular relative to a tong |
US7296623B2 (en) | 2000-04-17 | 2007-11-20 | Weatherford/Lamb, Inc. | Methods and apparatus for applying torque and rotation to connections |
SE522965C2 (sv) | 2000-12-29 | 2004-03-16 | Nobel Biocare Ab | Anordning för att åstadkomma lägesbestämning |
US6374706B1 (en) | 2001-01-25 | 2002-04-23 | Frederic M. Newman | Sucker rod tool |
US7568522B2 (en) | 2001-05-17 | 2009-08-04 | Weatherford/Lamb, Inc. | System and method for deflection compensation in power drive system for connection of tubulars |
US6516896B1 (en) | 2001-07-30 | 2003-02-11 | The Stanley Works | Torque-applying tool and control therefor |
US20030178847A1 (en) | 2002-03-19 | 2003-09-25 | Galle Edward M. | Threaded connection makeup method |
US7044238B2 (en) | 2002-04-19 | 2006-05-16 | Hutchinson Mark W | Method for improving drilling depth measurements |
EP1426550B1 (en) * | 2002-11-27 | 2008-03-19 | Weatherford/Lamb, Inc. | Methods and apparatus for applying torque and rotation to coupling members |
US6662110B1 (en) | 2003-01-14 | 2003-12-09 | Schlumberger Technology Corporation | Drilling rig closed loop controls |
US7294608B2 (en) | 2003-04-28 | 2007-11-13 | Jet-Lube, Inc. | Use of calcium sulfonate based threaded compounds in drilling operations and other severe industrial applications |
US7100698B2 (en) | 2003-10-09 | 2006-09-05 | Varco I/P, Inc. | Make-up control system for tubulars |
NO320431B1 (no) | 2003-12-11 | 2005-12-05 | Viking Engineering As | Anordning og fremgangsmate ved krafttang |
US7210710B2 (en) | 2004-03-01 | 2007-05-01 | Omsco, Inc. | Drill stem connection |
JP4734998B2 (ja) * | 2005-03-29 | 2011-07-27 | マツダ株式会社 | ボルト締結方法及びその装置 |
CA2636249C (en) | 2006-01-27 | 2011-06-14 | Varco I/P, Inc. | Horizontal drilling system with oscillation control |
GB2437647B (en) | 2006-04-27 | 2011-02-09 | Weatherford Lamb | Torque sub for use with top drive |
US7882902B2 (en) | 2006-11-17 | 2011-02-08 | Weatherford/Lamb, Inc. | Top drive interlock |
EP2957708B1 (en) | 2007-12-12 | 2018-01-31 | Weatherford Technology Holdings, LLC | Top drive system |
AU2014215938B2 (en) | 2007-12-12 | 2016-09-29 | Weatherford Technology Holdings, Llc | Top drive system |
WO2009132264A2 (en) | 2008-04-25 | 2009-10-29 | Weatherford/Lamb, Inc. | Method of controlling torque applied to a tubular connection |
NO2304168T3 (es) | 2008-05-02 | 2017-12-30 | ||
CA2686502C (en) | 2008-11-28 | 2017-12-19 | Key Energy Services, Inc. | Method and system for controlling tongs make-up speed and evaluating and controlling torque at the tongs |
US8689866B2 (en) | 2011-04-28 | 2014-04-08 | Canrig Drilling Technology Ltd. | Automated systems and methods for make-up and break-out of tubulars |
US8726743B2 (en) | 2011-06-22 | 2014-05-20 | Weatherford/Lamb, Inc. | Shoulder yielding detection during tubular makeup |
EP2723981A4 (en) | 2012-03-28 | 2016-05-18 | Mccoy Global Inc | DEVICE AND METHOD FOR TORQUE AND ROTATIONAL MEASUREMENT |
EP2917453A2 (en) * | 2012-10-31 | 2015-09-16 | Weatherford Technology Holdings, LLC | Graphical evaluator for tubular makeup |
RU2678474C2 (ru) * | 2014-05-09 | 2019-01-29 | Своджлок Компани | Фитинг для трубопровода с компонентами, приспособленными для облегчения сборки |
US10436658B2 (en) * | 2016-10-28 | 2019-10-08 | Weatherford Technology Holdings, Llc | Automated load cell identification |
-
2017
- 2017-02-28 US US15/445,361 patent/US10422450B2/en active Active
-
2018
- 2018-01-30 CA CA2993571A patent/CA2993571C/en active Active
- 2018-01-31 EP EP18154549.2A patent/EP3358124B1/en active Active
- 2018-01-31 EP EP20172679.1A patent/EP3708766B1/en active Active
- 2018-01-31 EP EP22174002.0A patent/EP4063609B1/en active Active
- 2018-01-31 AU AU2018200742A patent/AU2018200742B2/en active Active
- 2018-02-02 MX MX2018001510A patent/MX2018001510A/es unknown
- 2018-02-02 MX MX2021014809A patent/MX2021014809A/es unknown
-
2019
- 2019-06-24 US US16/450,492 patent/US10969040B2/en active Active
-
2020
- 2020-05-06 AU AU2020203001A patent/AU2020203001B2/en active Active
-
2022
- 2022-03-09 AU AU2022201651A patent/AU2022201651B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP4063609A1 (en) | 2022-09-28 |
EP3708766B1 (en) | 2022-12-14 |
CA2993571A1 (en) | 2018-08-03 |
EP3358124A1 (en) | 2018-08-08 |
EP4063609B1 (en) | 2023-09-06 |
AU2018200742A1 (en) | 2018-08-23 |
MX2021014809A (es) | 2022-11-30 |
US20190309878A1 (en) | 2019-10-10 |
AU2020203001A1 (en) | 2020-05-28 |
BR102018002300A2 (pt) | 2018-10-30 |
EP3358124B1 (en) | 2020-06-17 |
EP3708766A1 (en) | 2020-09-16 |
US20180224029A1 (en) | 2018-08-09 |
AU2022201651A1 (en) | 2022-03-31 |
AU2018200742B2 (en) | 2020-02-06 |
AU2022201651B2 (en) | 2023-07-27 |
AU2020203001B2 (en) | 2021-12-16 |
US10422450B2 (en) | 2019-09-24 |
US10969040B2 (en) | 2021-04-06 |
CA2993571C (en) | 2022-06-28 |
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