EP2317069A1 - Système de télémetrie par magnétisme pour contrôler un procès de forage - Google Patents

Système de télémetrie par magnétisme pour contrôler un procès de forage Download PDF

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Publication number
EP2317069A1
EP2317069A1 EP09174667A EP09174667A EP2317069A1 EP 2317069 A1 EP2317069 A1 EP 2317069A1 EP 09174667 A EP09174667 A EP 09174667A EP 09174667 A EP09174667 A EP 09174667A EP 2317069 A1 EP2317069 A1 EP 2317069A1
Authority
EP
European Patent Office
Prior art keywords
tool
drilling
magnetic field
ranging system
borehole
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP09174667A
Other languages
German (de)
English (en)
Inventor
Jørgen HALLUNDBAEK
Mathias Francke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welltec AS
Original Assignee
Welltec AS
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
Application filed by Welltec AS filed Critical Welltec AS
Priority to EP09174667A priority Critical patent/EP2317069A1/fr
Priority to CA2774292A priority patent/CA2774292A1/fr
Priority to AU2010311357A priority patent/AU2010311357A1/en
Priority to US13/500,085 priority patent/US20120193144A1/en
Priority to EP10773066A priority patent/EP2494148A1/fr
Priority to MX2012004930A priority patent/MX2012004930A/es
Priority to PCT/EP2010/066443 priority patent/WO2011051431A1/fr
Priority to BR112012009224A priority patent/BR112012009224A2/pt
Priority to CN2010800490265A priority patent/CN102782250A/zh
Publication of EP2317069A1 publication Critical patent/EP2317069A1/fr
Withdrawn legal-status Critical Current

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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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor

Definitions

  • the present invention relates to a ranging system for controlling a drilling process downhole.
  • the ranging system has a longitudinal direction and comprises a drilling tool for drilling a first borehole, the drilling tool having a tool axis and comprising a magnetic field source generating a magnetic field and having a magnetic field source axis.
  • the ranging system comprises a sensing tool arranged in a second borehole for measuring the magnetic field by means of a sensor unit.
  • the purpose is to meet the existing well or borehole at a certain position and, in other cases, the purpose is to drill a new borehole at an exact distance to the existing borehole or well with, ensuring that the distance between the two is substantially the same along a certain stretch.
  • Known tools comprise different solutions to determine this distance.
  • the tools are used to detect magnetic fields for the purpose of determining the distance. Some tools use current in a wire in the existing borehole while others use a magnet rotating in the drilling head.
  • the magnet in the drilling head needs to rotate in order to be able to detect the magnetic field and thus the distance of the drilling head in relation to a known position.
  • the drilling heads stops, making it impossible to detect the magnetic field and thus determine the distance and the drilling direction of the drilling head.
  • the magnetic field sensing device is positioned in the drilling tool. Since the drilling head of the drilling tool is driven by high-pressurised fluid delivered through the drill string, transmittal of data from the measurements conducted by the sensing device is very difficult. These tools produce waves in the fluid as a means of communicating data, which is a very slow means of communication and may moreover inhibit the drilling process.
  • a ranging system for controlling a drilling process downhole having a longitudinal direction and comprising:
  • the magnetic field source axis may be substantially coincident with the tool axis.
  • the magnetic field source may be an electromagnet or a permanent magnet.
  • the sensor unit may comprise at least two magnetometers measuring the strength of the magnetic field.
  • the second borehole may be an existing borehole.
  • the sensor unit and/or the drilling tool may be driven by a driving unit.
  • the ranging system may further comprise a positioning tool for determining the position of the sensing tool in the second borehole or the position of the drilling tool in the first borehole.
  • This sensing tool may also have means for controlling the position of the sensing tool.
  • the magnetic field source may have a through hole, allowing fluid for driving a drilling head of the drilling tool to pass through the magnetic field source.
  • the ranging system may also comprise a calculation unit for processing strength measurements of the magnetic field measured by the sensing tool.
  • the ranging system may comprise a second drilling tool, and the sensing tool may be arranged in or in connection with the second drilling tool so that the first drilling tool comprises the magnetic field source and the second drilling tool comprises the sensing tool.
  • the invention further relates to a method for using the ranging system according to the invention, comprising the steps of:
  • the method may comprise the step of calculating the direction of the drilling head.
  • the method may comprise the step of adjusting the drilling direction based on the calculated relative position of the drilling tool in relation to the sensing tool.
  • the invention relates to any use of the ranging system according to the invention.
  • the present invention relates to a ranging system 1 for controlling a drilling process downhole, the ranging system having a longitudinal direction.
  • a ranging system 1 for controlling a drilling process downhole, the ranging system having a longitudinal direction.
  • SAGD steam assisted gravity drainage
  • the ranging system comprises a drilling tool 2 for drilling a new borehole near an existing borehole as shown in Fig. 1 .
  • the drilling tool 2 comprises a drilling head 14 for drilling into the formation, and it further comprises a magnetic field source 5 generating a magnetic field 6, which can be detected by the sensing tool 8 in order to determine the distance between the drilling tool 2 and the sensing tool 8 while drilling and to determine the orientation of the drilling head.
  • one of the drilling tool or the sensing tool may also have a positioning tool.
  • the ranging system 1 may also be used while drilling two new boreholes.
  • the magnetic field source 5 is arranged in one drilling tool 2 and the sensor unit 10 of the sensing tool 8 is arranged in, or in connection with, another drilling tool 2.
  • the drilling direction of the drilling tools 2 can be adjusted to ensure that the distance between the two boreholes remains substantially the same.
  • one of the drilling tools 2 may comprise a positioning tool which is able to determine the position of the drilling tools in relation to the starting point or another known position.
  • the drilling tool 2 has a tool axis 4 and the magnetic field source 5 has a magnetic field source axis 7 which is substantially coincident with the tool axis 4.
  • the magnetic field source 5 and thereby the drilling tool 2 do not have to rotate in order for the sensor unit 10 to conduct measurements.
  • the conducting of measurements is dependent on the magnetic field source rotating while conducting the measurements.
  • the sensing tool 8 of the present invention is still capable of sensing the magnetic field 6 and thus of continuing to conduct measurements because the magnetic field source axis 7 is parallel to the tool axis 4.
  • the magnetic field source 5 may be any suitable electromagnet or permanent magnet. By using an electromagnet, the north and south poles can switch, and the sensor unit 10 is thereby able to conduct measurements, without interference from the earth magnetic field.
  • the sensor unit 10 comprises at least two magnetometers and, in Fig. 1 , the sensing tool 8 has three magnetometers, enabling it to calculate an exact position and direction of the drilling head 14 in relation to the sensing tool as well as the direction in which the drilling head 14 is drilling.
  • Each magnetometer measures the strength of the magnetic field 6 as three vectors.
  • the drilling direction of the drilling head 14 is adjusted so that the distance becomes the same again, and the drilling direction is then restored.
  • the sensing tool 8 comprises a driving unit 11 for driving the tool in the longitudinal direction of the second borehole 9.
  • the sensing tool 8 may comprise means 12 for adjusting the position of the sensing tool, enabling the sensing tool to move back and forth in the borehole to be as close as possible to the drilling tool.
  • the drilling tool 2 may also comprise a driving tool if the drilling process is not performed by means of coiled tubing or drill pipes.
  • the first borehole 3 is the borehole to be drilled
  • the second borehole 9 is an existing borehole, but may also be a well or another kind of hole in the formation.
  • the magnetic field source 5 has a through hole 13, allowing high-pressurised fluid running in the centre of the drilling tool for driving the drilling head 14 of the drilling tool 2 to pass through the magnetic field source 5 without being diverted and thereby lose energy. This is especially convenient when the drilling tool 2 is driven by pressurised fluid through drill pipes or coiled tubing.
  • the ranging system 1 comprises a calculation unit 15 for processing strength measurements of the magnetic field 6 measured by the sensor unit 10.
  • the position of the magnet, relative to the sensor, r is calculated as the solution to a minimisation problem.
  • the dipole vector can be calculated directly by insertion into equation 1.
  • fluid or well fluid any kind of fluid which may be present in oil or gas wells downhole, such as natural gas, oil, oil mud, crude oil, water, etc.
  • gas is meant any kind of gas composition present in a well, completion, or open hole
  • oil is meant any kind of oil composition, such as crude oil, an oil-containing fluid, etc.
  • Gas, oil, and water fluids may thus all comprise other elements or substances than gas, oil, and/or water, respectively.
  • a casing any kind of pipe, tubing, tubular, liner, string, etc. used downhole in relation to oil or natural gas production.
  • a downhole tractor can be used to push the tools all the way into position in the well.
  • a downhole tractor is any kind of driving tool capable of pushing or pulling tools in a well downhole, such as a Well Tractor®.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP09174667A 2009-10-30 2009-10-30 Système de télémetrie par magnétisme pour contrôler un procès de forage Withdrawn EP2317069A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP09174667A EP2317069A1 (fr) 2009-10-30 2009-10-30 Système de télémetrie par magnétisme pour contrôler un procès de forage
CA2774292A CA2774292A1 (fr) 2009-10-30 2010-10-29 Systeme de telemetrie magnetique pour controler un processus de forage
AU2010311357A AU2010311357A1 (en) 2009-10-30 2010-10-29 Magnetic ranging system for controlling a drilling process
US13/500,085 US20120193144A1 (en) 2009-10-30 2010-10-29 Magnetic ranging system for controlling a drilling process
EP10773066A EP2494148A1 (fr) 2009-10-30 2010-10-29 Système de télémétrie magnétique pour contrôler un processus de forage
MX2012004930A MX2012004930A (es) 2009-10-30 2010-10-29 Sistema de determinacion de distancias para controlar un proceso de perforacion.
PCT/EP2010/066443 WO2011051431A1 (fr) 2009-10-30 2010-10-29 Système de télémétrie magnétique pour contrôler un processus de forage
BR112012009224A BR112012009224A2 (pt) 2009-10-30 2010-10-29 sistema variante
CN2010800490265A CN102782250A (zh) 2009-10-30 2010-10-29 用于控制钻进过程的磁测距系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09174667A EP2317069A1 (fr) 2009-10-30 2009-10-30 Système de télémetrie par magnétisme pour contrôler un procès de forage

Publications (1)

Publication Number Publication Date
EP2317069A1 true EP2317069A1 (fr) 2011-05-04

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EP09174667A Withdrawn EP2317069A1 (fr) 2009-10-30 2009-10-30 Système de télémetrie par magnétisme pour contrôler un procès de forage
EP10773066A Withdrawn EP2494148A1 (fr) 2009-10-30 2010-10-29 Système de télémétrie magnétique pour contrôler un processus de forage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10773066A Withdrawn EP2494148A1 (fr) 2009-10-30 2010-10-29 Système de télémétrie magnétique pour contrôler un processus de forage

Country Status (8)

Country Link
US (1) US20120193144A1 (fr)
EP (2) EP2317069A1 (fr)
CN (1) CN102782250A (fr)
AU (1) AU2010311357A1 (fr)
BR (1) BR112012009224A2 (fr)
CA (1) CA2774292A1 (fr)
MX (1) MX2012004930A (fr)
WO (1) WO2011051431A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104919136A (zh) * 2012-12-21 2015-09-16 哈利伯顿能源服务公司 使用第三井参照来执行距离测量的系统和方法
CN115949388A (zh) * 2023-02-20 2023-04-11 四川轻化工大学 一种套管防碰测距预警方法及测量单元

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CN103573248B (zh) * 2012-07-25 2017-02-08 中国石油化工股份有限公司 钻井的磁干扰测量装置
BR112015005664B1 (pt) * 2012-09-18 2021-06-08 Shell Internationale Research Maatschappij B.V. método para criar um segundo furo de sondagem em uma formação terrestre
MY180111A (en) * 2012-12-07 2020-11-23 Halliburton Energy Services Inc Surface excitation ranging system for sagd application
CN104343438B (zh) * 2014-09-10 2018-07-31 北京纳特斯拉科技有限公司 测量钻井相对距离的旋转磁场测距仪及其测量方法
SG11201701017RA (en) * 2014-09-11 2017-03-30 Halliburton Energy Services Inc Rare earth alloys as borehole markers
CA2969321C (fr) 2014-12-31 2020-09-08 Halliburton Energy Services, Inc. Procedes et systemes employant des capteurs a fibres optiques pour telemetrie
CN107989601B (zh) * 2017-12-22 2020-12-15 西安石油大学 一种用于同时钻多口垂直井的磁测距方法
CN108166972A (zh) * 2017-12-22 2018-06-15 西安石油大学 一种控制平行井钻进的磁测距系统及方法
EP3725998A1 (fr) * 2019-04-18 2020-10-21 Sandvik Mining and Construction Oy Appareil et procédé pour déterminer la position d'un outil de forage pendant le forage
US11781421B2 (en) 2020-09-22 2023-10-10 Gunnar LLLP Method and apparatus for magnetic ranging while drilling

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US4933640A (en) * 1988-12-30 1990-06-12 Vector Magnetics Apparatus for locating an elongated conductive body by electromagnetic measurement while drilling
US5589775A (en) * 1993-11-22 1996-12-31 Vector Magnetics, Inc. Rotating magnet for distance and direction measurements from a first borehole to a second borehole
US20080018334A1 (en) * 2005-01-18 2008-01-24 Baker Hughes Incorporated Method and Apparatus for Well-bore Proximity Measurement While Drilling
US20080041626A1 (en) * 2006-08-16 2008-02-21 Schlumberger Technology Corporation Magnetic ranging while drilling parallel wells
US20080275648A1 (en) * 2007-05-03 2008-11-06 Pathfinder Energy Services, Inc. Method of optimizing a well path during drilling
US20090260878A1 (en) * 2008-04-17 2009-10-22 Schlumberger Technology Corporation Method for drilling wells in close relationship using magnetic ranging while drilling
US20090260879A1 (en) * 2008-04-18 2009-10-22 Schlumberger Technology Corporation Magnetic ranging while drilling using an electric dipole source and a magnetic field sensor

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US7475741B2 (en) * 2004-11-30 2009-01-13 General Electric Company Method and system for precise drilling guidance of twin wells
US7568532B2 (en) * 2006-06-05 2009-08-04 Halliburton Energy Services, Inc. Electromagnetically determining the relative location of a drill bit using a solenoid source installed on a steel casing
US8063641B2 (en) * 2008-06-13 2011-11-22 Schlumberger Technology Corporation Magnetic ranging and controlled earth borehole drilling
CA2729203C (fr) * 2008-06-25 2017-11-21 Schlumberger Canada Limited Systeme et procede d'emploi de regions alternees de cuvelage magnetique et non magnetique dans des applications de telemetrie magnetique
CN101806210B (zh) * 2010-04-13 2014-01-01 中国石油大学(北京) 一种螺线管组随钻电磁测距导向系统
CN101852078B (zh) * 2010-06-08 2013-01-16 中国石油大学(北京) 一种双螺线管组随钻电磁测距导向系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933640A (en) * 1988-12-30 1990-06-12 Vector Magnetics Apparatus for locating an elongated conductive body by electromagnetic measurement while drilling
US5589775A (en) * 1993-11-22 1996-12-31 Vector Magnetics, Inc. Rotating magnet for distance and direction measurements from a first borehole to a second borehole
US20080018334A1 (en) * 2005-01-18 2008-01-24 Baker Hughes Incorporated Method and Apparatus for Well-bore Proximity Measurement While Drilling
US20080041626A1 (en) * 2006-08-16 2008-02-21 Schlumberger Technology Corporation Magnetic ranging while drilling parallel wells
US20080275648A1 (en) * 2007-05-03 2008-11-06 Pathfinder Energy Services, Inc. Method of optimizing a well path during drilling
US20090260878A1 (en) * 2008-04-17 2009-10-22 Schlumberger Technology Corporation Method for drilling wells in close relationship using magnetic ranging while drilling
US20090260879A1 (en) * 2008-04-18 2009-10-22 Schlumberger Technology Corporation Magnetic ranging while drilling using an electric dipole source and a magnetic field sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104919136A (zh) * 2012-12-21 2015-09-16 哈利伯顿能源服务公司 使用第三井参照来执行距离测量的系统和方法
CN104919136B (zh) * 2012-12-21 2018-07-10 哈利伯顿能源服务公司 使用第三井参照来执行距离测量的系统和方法
CN115949388A (zh) * 2023-02-20 2023-04-11 四川轻化工大学 一种套管防碰测距预警方法及测量单元
CN115949388B (zh) * 2023-02-20 2024-05-07 四川轻化工大学 一种套管防碰测距预警方法及测量单元

Also Published As

Publication number Publication date
MX2012004930A (es) 2012-05-22
WO2011051431A1 (fr) 2011-05-05
AU2010311357A1 (en) 2012-04-12
CN102782250A (zh) 2012-11-14
US20120193144A1 (en) 2012-08-02
CA2774292A1 (fr) 2011-05-05
EP2494148A1 (fr) 2012-09-05
BR112012009224A2 (pt) 2016-08-23

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