PE20161120A1 - Aparato y metodos de registro de hoyo - Google Patents

Aparato y metodos de registro de hoyo

Info

Publication number
PE20161120A1
PE20161120A1 PE2016000637A PE2016000637A PE20161120A1 PE 20161120 A1 PE20161120 A1 PE 20161120A1 PE 2016000637 A PE2016000637 A PE 2016000637A PE 2016000637 A PE2016000637 A PE 2016000637A PE 20161120 A1 PE20161120 A1 PE 20161120A1
Authority
PE
Peru
Prior art keywords
pressure value
hole
values
pressure
additional
Prior art date
Application number
PE2016000637A
Other languages
English (en)
Spanish (es)
Inventor
Jerome Christian Dupuis
Brett James Wilkinson
Gordon Henderson Stewart
Anton Kepic
Original Assignee
Deep Explor Tech Coop Res Centre Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2013904475A external-priority patent/AU2013904475A0/en
Application filed by Deep Explor Tech Coop Res Centre Ltd filed Critical Deep Explor Tech Coop Res Centre Ltd
Publication of PE20161120A1 publication Critical patent/PE20161120A1/es

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/04Measuring depth or liquid level
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/12Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using gamma or X-ray sources
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/09Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Fluid Pressure (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
PE2016000637A 2013-11-19 2014-11-19 Aparato y metodos de registro de hoyo PE20161120A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2013904475A AU2013904475A0 (en) 2013-11-19 Borehole logging methods and apparatus

Publications (1)

Publication Number Publication Date
PE20161120A1 true PE20161120A1 (es) 2016-10-29

Family

ID=53178712

Family Applications (1)

Application Number Title Priority Date Filing Date
PE2016000637A PE20161120A1 (es) 2013-11-19 2014-11-19 Aparato y metodos de registro de hoyo

Country Status (11)

Country Link
US (2) US9970290B2 (https=)
EP (1) EP3071789B1 (https=)
CN (1) CN105829647B (https=)
AU (2) AU2014353871B2 (https=)
BR (1) BR112016011163B1 (https=)
CA (1) CA2929973C (https=)
CL (1) CL2016001211A1 (https=)
ES (1) ES2792981T3 (https=)
PE (1) PE20161120A1 (https=)
WO (1) WO2015074101A1 (https=)
ZA (1) ZA201603318B (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015074101A1 (en) 2013-11-19 2015-05-28 Deep Exploration Technologies Cooperative Research Centre Ltd Borehole logging methods and apparatus
US10208585B2 (en) 2015-08-11 2019-02-19 Intrasen, LLC Groundwater monitoring system and method
GB2568612A (en) * 2016-08-15 2019-05-22 Sanvean Tech Llc Drilling dynamics data recorder
NO342875B1 (en) * 2017-01-26 2018-08-20 Devico As Non-magnetic survey instrument for boreholes, casings or drill strings
CN107575160B (zh) * 2017-09-28 2024-07-23 河南理工大学 岩层信息智能钻测机
AU2020264425B2 (en) * 2019-05-01 2022-05-12 The University Of Queensland A system, method and device for determining conditions of a borehole
CN110426753B (zh) * 2019-07-11 2025-01-07 郑州波尔登防护用品有限公司 测井仪支架以及测井仪用刻度工房
CN111917716B (zh) * 2020-06-24 2022-10-14 中国石油化工集团有限公司 一种测井井下仪器兼容挂接方法
CN112112624B (zh) * 2020-08-21 2023-08-25 中煤科工集团西安研究院有限公司 一种煤矿井下多参数钻孔物探精细远探测装置及方法
CN113048934A (zh) * 2020-12-25 2021-06-29 安徽巨一科技股份有限公司 Fds预开孔深度测量更正方法、系统、设备和存储介质
CN114165160B (zh) * 2021-11-22 2023-06-30 中国石油大学(华东) 基于精细网格存储和一维函数的快速地质导向方法
EP4612374A2 (en) * 2022-11-03 2025-09-10 Deep Reach Technology Inc. Installation time design of micropiles
US12421851B2 (en) 2024-02-22 2025-09-23 Weatherford Technology Holdings, Llc Formation testing with controlled pressure drilling

Family Cites Families (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA226844A (en) 1922-12-05 Cameron Charles Automobile luggage carrier
US4596139A (en) * 1985-01-28 1986-06-24 Mobil Oil Corporation Depth referencing system for a borehole gravimetry system
EP1632644B1 (en) 1995-02-16 2011-05-25 Baker Hughes Incorporated Method and apparatus for monitoring and recording of operating conditions of a downhole drill bit during drilling operations
GB9601362D0 (en) 1996-01-24 1996-03-27 Anadrill Int Sa Method and apparatus for determining fluid influx during drilling
DE59609594D1 (de) 1996-06-07 2002-10-02 Baker Hughes Inc Verfahren und Vorrichtung zur unterirdischen Erfassung der Teufe einer Bohrung
US6148912A (en) 1997-03-25 2000-11-21 Dresser Industries, Inc. Subsurface measurement apparatus, system, and process for improved well drilling control and production
US6464021B1 (en) 1997-06-02 2002-10-15 Schlumberger Technology Corporation Equi-pressure geosteering
GB2327501B (en) 1997-07-22 2002-03-13 Baroid Technology Inc Improvements in or relating to aided inertial navigation systems
CA2215888C (en) 1997-09-17 2001-08-07 John R. Adams Wellbore profiling system
US6429784B1 (en) 1999-02-19 2002-08-06 Dresser Industries, Inc. Casing mounted sensors, actuators and generators
US6151961A (en) 1999-03-08 2000-11-28 Schlumberger Technology Corporation Downhole depth correlation
US6349768B1 (en) 1999-09-30 2002-02-26 Schlumberger Technology Corporation Method and apparatus for all multilateral well entry
GB9929180D0 (en) 1999-12-09 2000-02-02 Oxford Instr Uk Ltd Method and device for transferring data
WO2001063091A1 (en) 2000-02-22 2001-08-30 Weatherford/Lamb, Inc. Artificial lift apparatus with automated monitoring characteristics
US6763889B2 (en) 2000-08-14 2004-07-20 Schlumberger Technology Corporation Subsea intervention
US6401838B1 (en) 2000-11-13 2002-06-11 Schlumberger Technology Corporation Method for detecting stuck pipe or poor hole cleaning
US6516663B2 (en) 2001-02-06 2003-02-11 Weatherford/Lamb, Inc. Downhole electromagnetic logging into place tool
US6839000B2 (en) * 2001-10-29 2005-01-04 Baker Hughes Incorporated Integrated, single collar measurement while drilling tool
CA2482912C (en) 2002-04-19 2009-05-12 Mark W. Hutchinson System and method for interpreting drilling data
US7114565B2 (en) * 2002-07-30 2006-10-03 Baker Hughes Incorporated Measurement-while-drilling assembly using real-time toolface oriented measurements
US6923052B2 (en) 2002-09-12 2005-08-02 Baker Hughes Incorporated Methods to detect formation pressure
US7219730B2 (en) 2002-09-27 2007-05-22 Weatherford/Lamb, Inc. Smart cementing systems
US7063174B2 (en) 2002-11-12 2006-06-20 Baker Hughes Incorporated Method for reservoir navigation using formation pressure testing measurement while drilling
US7207396B2 (en) 2002-12-10 2007-04-24 Intelliserv, Inc. Method and apparatus of assessing down-hole drilling conditions
US7331223B2 (en) 2003-01-27 2008-02-19 Schlumberger Technology Corporation Method and apparatus for fast pore pressure measurement during drilling operations
GB2414837B (en) 2003-02-27 2006-08-16 Schlumberger Holdings Determining an inflow profile of a well
US6910388B2 (en) 2003-08-22 2005-06-28 Weatherford/Lamb, Inc. Flow meter using an expanded tube section and sensitive differential pressure measurement
US20050169717A1 (en) * 2004-02-03 2005-08-04 Field Grant A. Electronic drill depth indicator
US9441476B2 (en) 2004-03-04 2016-09-13 Halliburton Energy Services, Inc. Multiple distributed pressure measurements
GB2428096B (en) 2004-03-04 2008-10-15 Halliburton Energy Serv Inc Multiple distributed force measurements
GB2429484B (en) 2004-05-21 2009-10-28 Halliburton Energy Serv Inc Methods and apparatus for measuring formation properties
US7617873B2 (en) 2004-05-28 2009-11-17 Schlumberger Technology Corporation System and methods using fiber optics in coiled tubing
US7159468B2 (en) 2004-06-15 2007-01-09 Halliburton Energy Services, Inc. Fiber optic differential pressure sensor
US7458420B2 (en) 2004-07-22 2008-12-02 Schlumberger Technology Corporation Downhole measurement system and method
US20060033638A1 (en) 2004-08-10 2006-02-16 Hall David R Apparatus for Responding to an Anomalous Change in Downhole Pressure
US7353869B2 (en) 2004-11-04 2008-04-08 Schlumberger Technology Corporation System and method for utilizing a skin sensor in a downhole application
CA2542679C (en) 2005-04-12 2009-02-24 Advantage R&D, Inc. Apparatus and methods for logging a well borehole with controllable rotating instrumentation
GB0602986D0 (en) 2006-02-15 2006-03-29 Metrol Tech Ltd Method
US7768423B2 (en) 2006-04-11 2010-08-03 XAct Dowhole Telemetry Inc. Telemetry transmitter optimization via inferred measured depth
ATE403064T1 (de) 2006-05-12 2008-08-15 Prad Res & Dev Nv Verfahren und vorrichtung zum lokalisieren eines stopfens im bohrloch
US7857046B2 (en) 2006-05-31 2010-12-28 Schlumberger Technology Corporation Methods for obtaining a wellbore schematic and using same for wellbore servicing
US8443915B2 (en) 2006-09-14 2013-05-21 Schlumberger Technology Corporation Through drillstring logging systems and methods
US8899322B2 (en) 2006-09-20 2014-12-02 Baker Hughes Incorporated Autonomous downhole control methods and devices
US7542853B2 (en) 2007-06-18 2009-06-02 Conocophillips Company Method and apparatus for geobaric analysis
NO333727B1 (no) 2007-07-06 2013-09-02 Statoil Asa Anordninger og fremgangsmater for formasjonstesting ved trykkmaling i et isolert, variabelt volum
US8781746B2 (en) 2007-08-30 2014-07-15 Precision Energy Services, Inc. System and method for obtaining and using downhole data during well control operations
US8086431B2 (en) 2007-09-28 2011-12-27 Schlumberger Technology Corporation Method and system for interpreting swabbing tests using nonlinear regression
US7765862B2 (en) 2007-11-30 2010-08-03 Schlumberger Technology Corporation Determination of formation pressure during a drilling operation
US7694558B2 (en) 2008-02-11 2010-04-13 Baker Hughes Incorporated Downhole washout detection system and method
US7950472B2 (en) 2008-02-19 2011-05-31 Baker Hughes Incorporated Downhole local mud weight measurement near bit
US8600679B2 (en) 2008-02-27 2013-12-03 Baker Hughes Incorporated System and method to locate, monitor and quantify friction between a drillstring and a wellbore
RU2015105531A (ru) 2008-03-03 2015-11-10 Интеллизерв Интернэшнл Холдинг, Лтд Мониторинг скважинных показателей при помощи измерительной системы, распределенной по бурильной колонне
US8042624B2 (en) 2008-04-17 2011-10-25 Baker Hughes Incorporated System and method for improved depth measurement correction
US8051910B2 (en) 2008-04-22 2011-11-08 Baker Hughes Incorporated Methods of inferring flow in a wellbore
NO20083040A (no) 2008-07-04 2009-10-26 Peak Well Solutions As Triggerinnretning for å aktivere en hendelse
US8136591B2 (en) * 2009-06-01 2012-03-20 Schlumberger Technology Corporation Method and system for using wireline configurable wellbore instruments with a wired pipe string
US8267197B2 (en) 2009-08-25 2012-09-18 Baker Hughes Incorporated Apparatus and methods for controlling bottomhole assembly temperature during a pause in drilling boreholes
GB0916242D0 (en) 2009-09-16 2009-10-28 Tendeka Bv Downhole measurement apparatus
US9002648B2 (en) * 2010-02-02 2015-04-07 Schlumberger Technology Corporation Method and apparatus for precise positioning of a borehole measurement instrument
WO2012087864A2 (en) 2010-12-20 2012-06-28 Schlumberger Technology Coproration Method of utilizing subterranean formation data for improving treatment operations
US9284832B2 (en) 2011-06-02 2016-03-15 Baker Hughes Incorporated Apparatus and method for determining inclination and orientation of a downhole tool using pressure measurements
US9574437B2 (en) 2011-07-29 2017-02-21 Baker Hughes Incorporated Viscometer for downhole use
US9394783B2 (en) 2011-08-26 2016-07-19 Schlumberger Technology Corporation Methods for evaluating inflow and outflow in a subterranean wellbore
US9404327B2 (en) 2011-08-26 2016-08-02 Schlumberger Technology Corporation Methods for evaluating borehole volume changes while drilling
US9228430B2 (en) 2011-08-26 2016-01-05 Schlumberger Technology Corporation Methods for evaluating cuttings density while drilling
US20130048380A1 (en) 2011-08-26 2013-02-28 John Rasmus Wellbore interval densities
WO2013055706A1 (en) 2011-10-09 2013-04-18 Intelliserv, Llc Wellbore influx detection with drill string distributed measurements
AU2012346426B2 (en) 2011-11-30 2015-07-16 Halliburton Energy Services, Inc. Use of downhole pressure measurements while drilling to detect and mitigate influxes
EP2639565A1 (en) 2012-03-14 2013-09-18 Sustained AS Method and device for determining pressure in a cavity
US8973433B2 (en) 2012-06-04 2015-03-10 Baker Hughes Incorporated Dual differential pressure multiphase flow meter
US9016119B2 (en) 2012-06-27 2015-04-28 Schlumberger Technology Corporation Pore pressure measurement in low-permeability and impermeable materials
CA2878468C (en) 2012-07-06 2020-06-23 Technological Resources Pty Ltd A method of, and a system for, drilling to a position relative to a geological boundary
CN108561118B (zh) 2012-07-20 2022-06-24 默林科技股份有限公司 地埋操作、系统、通信及相关装置和方法
US9404333B2 (en) 2012-07-31 2016-08-02 Schlumberger Technology Corporation Dual barrier open water well completion systems
EP2898171B1 (en) 2012-09-21 2021-11-17 Halliburton Energy Services Inc. System and method for determining drilling parameters based on hydraulic pressure associated with a directional drilling system
US9091774B2 (en) 2012-10-04 2015-07-28 Schlumberger Technology Corporation Method of determining an element value
RU2015118171A (ru) 2012-10-15 2016-12-10 Конокофиллипс Компани Способ и использование идентификации времени падения плунжера
EA033474B1 (ru) 2012-11-13 2019-10-31 Exxonmobil Upstream Res Co Способ обнаружения нарушений нормального хода бурения
BR112015012280A2 (pt) 2012-12-28 2017-07-11 Halliburton Energy Services Inc mitigação dos efeitos do pistão com oscilação e pistoneio através do motor de perfuração
EP2912262A4 (en) 2012-12-31 2016-07-13 Halliburton Energy Services Inc MONITORING OF A CONDITION OF A COMPONENT IN A ROTATION CONTROL DEVICE OF A DRILLING SYSTEM WITH EMBEDDED SENSORS
CA2912437C (en) 2013-05-13 2019-03-05 Weatherford Technology Holdings, Llc Method and apparatus for operating a downhole tool
MX361795B (es) 2013-05-24 2018-12-17 Schlumberger Technology Bv Registro de produccion en pozos multilaterales.
US9593571B2 (en) * 2013-05-30 2017-03-14 Schlumberger Technology Coproration Determining correct drill pipe length and formation depth using measurements from repeater subs of a wired drill pipe system
GB2515283A (en) 2013-06-17 2014-12-24 Guy Wheater Mud sensing hole finder (MSHF)
US9359883B2 (en) 2013-07-22 2016-06-07 Schlumberger Technology Corporation Zonal compositional production rates in commingled gas wells
US10087751B2 (en) 2013-08-20 2018-10-02 Halliburton Energy Services, Inc. Subsurface fiber optic stimulation-flow meter
GB2517502B (en) 2013-08-23 2015-08-26 Statoil Petroleum As Method of calculating depth of well bore
WO2015038179A1 (en) 2013-09-16 2015-03-19 Halliburton Energy Services, Inc. Well fluid sampling confirmation and analysis
US9534491B2 (en) 2013-09-27 2017-01-03 Rosemount Inc. Detection of position of a plunger in a well
GB201319553D0 (en) 2013-11-05 2013-12-18 Optasense Holdings Ltd Monitoring of steam injection
WO2015074101A1 (en) 2013-11-19 2015-05-28 Deep Exploration Technologies Cooperative Research Centre Ltd Borehole logging methods and apparatus
CN103821505B (zh) * 2014-02-28 2016-10-05 中国石油大学(北京) 砂岩油气输导层地球物理-地质-地球化学检测方法及装置

Also Published As

Publication number Publication date
BR112016011163A2 (https=) 2017-08-08
US10415378B2 (en) 2019-09-17
CA2929973A1 (en) 2015-05-28
EP3071789B1 (en) 2020-02-26
WO2015074101A1 (en) 2015-05-28
BR112016011163B1 (pt) 2022-03-03
ES2792981T3 (es) 2020-11-12
AU2018279062B2 (en) 2019-12-05
US20180245462A1 (en) 2018-08-30
CA2929973C (en) 2022-05-10
WO2015074101A9 (en) 2017-02-02
EP3071789A4 (en) 2017-08-09
AU2014353871B2 (en) 2018-10-25
AU2014353871A1 (en) 2016-07-07
EP3071789A1 (en) 2016-09-28
CN105829647B (zh) 2020-05-12
CN105829647A (zh) 2016-08-03
ZA201603318B (en) 2019-10-30
US20160273352A1 (en) 2016-09-22
AU2018279062A1 (en) 2019-01-17
CL2016001211A1 (es) 2017-01-06
US9970290B2 (en) 2018-05-15

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