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EP1882809B1 - Procédés et appareil de micro-imagerie - Google Patents

Procédés et appareil de micro-imagerie Download PDF

Info

Publication number
EP1882809B1
EP1882809B1 EP06291222A EP06291222A EP1882809B1 EP 1882809 B1 EP1882809 B1 EP 1882809B1 EP 06291222 A EP06291222 A EP 06291222A EP 06291222 A EP06291222 A EP 06291222A EP 1882809 B1 EP1882809 B1 EP 1882809B1
Authority
EP
European Patent Office
Prior art keywords
drill bit
optical probe
probe
hole
formation
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.)
Not-in-force
Application number
EP06291222A
Other languages
German (de)
English (en)
Other versions
EP1882809A1 (fr
Inventor
Fadhel Rezgui
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.)
Services Petroliers Schlumberger SA
Gemalto Terminals Ltd
Prad Research and Development NV
Schlumberger Technology BV
Schlumberger Holdings Ltd
Original Assignee
Services Petroliers Schlumberger SA
Gemalto Terminals Ltd
Prad Research and Development NV
Schlumberger Technology BV
Schlumberger Holdings 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
Application filed by Services Petroliers Schlumberger SA, Gemalto Terminals Ltd, Prad Research and Development NV, Schlumberger Technology BV, Schlumberger Holdings Ltd filed Critical Services Petroliers Schlumberger SA
Priority to DE602006021294T priority Critical patent/DE602006021294D1/de
Priority to AT06291222T priority patent/ATE505623T1/de
Priority to EP06291222A priority patent/EP1882809B1/fr
Priority to PCT/EP2007/006478 priority patent/WO2008012035A1/fr
Priority to US12/374,706 priority patent/US20100026998A1/en
Publication of EP1882809A1 publication Critical patent/EP1882809A1/fr
Application granted granted Critical
Publication of EP1882809B1 publication Critical patent/EP1882809B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B49/00—Testing 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
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/10—Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers
    • 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
    • E21B47/002—Survey of boreholes or wells by visual inspection

Definitions

  • This invention relates to methods and apparatus for imaging underground formations and fluids such as are commonly encountered in the drilling of wells such as oil and gas wells.
  • the invention provides apparatus for use as a tool for making measurements in such wells.
  • This invention is aimed at solving the problem of investigating the formation in a regions that are less effected by the drilling process and in a manner that avoids problems with contaminant coming between the imaging tool and the formation preventing an image being obtained.
  • the optical surface of the probe can be held close enough to the formation in the drilled hole that the level of degradation due to material between the probe and the formation is sufficiently low as to allow effective investigation of the formation. Drilling into the formation means that the formation 'viewed' by the tool is less affected by the drilling process.
  • the drill bit is provided with a liquid pathway to direct any formation fluid entering the drilled hole back along the probe unit.
  • the liquid path typically leads to a capillary trap in the probe unit at which the fluid can be analysed.
  • Apparatus according to the invention preferably further comprises a tool body in which are located the drive mechanism, a light source and a detector and at least part of the optical system.
  • the body can also include arms which can be operated to bear against the borehole wall so as to urge the tool body against the part of the borehole wall into which the hole is to be drilled.
  • the optical probe can be used to turn the drill bit such that as the drill bit drills into the formation, the optical probe is inserted into the drilled hole.
  • the drill bit is withdrawn from the hole and the optical probe subsequently inserted.
  • a drive mechanism 22 comprising a motor and gear arrangement is mounted in the body 10.
  • the drive mechanism includes a drive head 24 in which is mounted a drill and probe unit 26.
  • the unit 26 comprises at its outer end a drill bit 28 and at its inner end an optical probe 30 formed from a sapphire fibre having an outside diameter that is substantially the same as, but no larger than that of the drill bit.
  • the drive mechanism 24, which is provide with power and control signals from the wireline cable, operates to rotate the drill unit 26 and provide an axial drive to either drill into the borehole wall 18 or withdraw the unit from a drilled hole.
  • Figure 1 shows the configuration of the tool when it is positioned in the borehole 12 adjacent a formation of interest.
  • Figure 2 shows the configuration of the tool once a hole has been drilled and the drill and probe unit 26 advanced into the drilled hole such that at least the lower part of the optical probe 30 is located in the hole.
  • the drill and probe unit 26 to analyse formation fluids as is shown in Figure 4 . Because of the close fit between the outside of the probe unit 26 and the wall of the drilled hole, when the probe unit 26 is withdrawn from the hole, a pressure drop is created at the end of the hole 52 by the swabbing effect such that fluids can flow in from the formation 18. The fluids can flow back along the groves 44 and 44' to the region of the fibre 46 near the mirror 48 where they can be trapped in a capillary chamber 54 and optically analysed in a similar fashion to that described above for the formation wall.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (19)

  1. Appareil pour examiner des formations souterraines entourant un trou de forage, comprenant :
    - un outil de forage (28) ;
    - une sonde optique (30) ayant sensiblement le même diamètre externe que l'outil de forage ;
    - un mécanisme d'entraînement (22) pouvant être utilisé pour amener l'outil de forage à forer un trou dans la formation lorsque l'appareil est dans le trou de forage, et pour avancer la sonde optique dans le trou foré ; et
    - un système optique, agencé de sorte que, lorsque la sonde optique est dans le trou foré, la lumière provenant d'une source de lumière (32) soit dirigée dans la sonde optique, la lumière entrant dans la sonde à partir de la source soit dirigée vers la formation autour du trou foré, et la lumière entrant dans la sonde à partir de la formation autour du trou foré soit dirigée vers un détecteur.
  2. Appareil selon la revendication 1, dans lequel l'outil de forage et la sonde optique forment une seule unité de sonde allongée.
  3. Appareil selon la revendication 2, dans lequel l'outil de forage est monté sur l'extrémité de la sonde optique.
  4. Appareil selon la revendication 3, dans lequel le système optique comprend un miroir (48) conique situé au niveau de la jonction entre l'outil de forage et la sonde optique.
  5. Appareil selon l'une quelconque des revendications 2 à 4, dans lequel le mécanisme d'entraînement agit sur la sonde optique pour amener l'outil de forage à forer le trou.
  6. Appareil selon l'une quelconque des revendications 2 à 5, dans lequel l'outil de forage est pourvu d'un passage de liquide pour diriger tout fluide de formation réentrant dans le trou foré le long de l'unité de sonde.
  7. Appareil selon la revendication 6, dans lequel le trajet de liquide conduit à un piège capillaire dans l'unité de sonde où le fluide peut être analysé.
  8. Appareil selon la revendication 1, dans lequel l'outil de forage et la sonde optique sont deux unités discrètes.
  9. Appareil selon la revendication 8, dans lequel le système optique comprend un miroir (48) conique situé dans la sonde optique.
  10. Appareil selon la revendication 8 ou 9, dans lequel le mécanisme d'entraînement comprend des moyens pour aligner l'outil de forage ou la sonde optique avec la position du trou foré.
  11. Appareil selon l'une quelconque des revendications précédentes, comprenant en outre un corps d'outil dans lequel sont situés le mécanisme d'entraînement, une source de lumière et un détecteur et au moins une partie du système optique.
  12. Appareil selon la revendication 11, dans lequel le corps comprend également des bras (14) qui peuvent être mis en oeuvre pour s'appuyer contre la paroi du trou de forage de manière à pousser le corps d'outil contre la partie de la paroi du trou de forage dans laquelle le trou doit être foré.
  13. Appareil selon l'une quelconque des revendications précédentes, dans lequel la sonde optique comprend en outre un alésage à travers lequel des fluides peuvent être retirés du trou foré ou pompés dans celui-ci.
  14. Procédé d'examen de formations souterraines entourant un trou de forage, comprenant :
    - le forage d'un trou dans la formation à examiner en utilisant un outil de forage (28) ;
    - l'insertion d'une sonde optique (30) ayant sensiblement le même diamètre externe que l'outil de forage dans le trou ;
    - le fait de diriger la lumière provenant d'une source de lumière vers la sonde ;
    - le fait de diriger la lumière entrant dans la sonde optique vers la formation autour du trou foré ;
    - le fait de diriger la lumière entrant dans la sonde optique à partir de la formation vers un détecteur ; et
    - l'analyse de la lumière reçue dans le détecteur.
  15. Procédé selon la revendication 14, comprenant l'utilisation de la sonde optique pour faire tourner l'outil de forage de sorte que, alors que l'outil de forage fore dans la formation, la sonde optique soit insérée dans le trou foré.
  16. Procédé selon la revendication 15, comprenant en outre le retrait au moins partiellement de l'outil de forage dans le trou foré de manière à retirer les fluides de la formation dans le trou foré.
  17. Procédé selon la revendication 16, comprenant en outre le retrait des fluides le long de l'outil de forage vers la sonde optique et l'analyse des fluides en utilisant la sonde optique.
  18. Procédé selon la revendication 14, comprenant, après le forage du trou en utilisant l'outil de forage, le retrait de l'outil de forage du trou et d'insertion ensuite de la sonde optique.
  19. Procédé selon la revendication 14, lorsqu'il est effectué en utilisant un appareil selon l'une quelconque des revendications 1 à 13.
EP06291222A 2006-07-24 2006-07-24 Procédés et appareil de micro-imagerie Not-in-force EP1882809B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE602006021294T DE602006021294D1 (de) 2006-07-24 2006-07-24 Verfahren und Vorrichtung für Mikrobildgebung
AT06291222T ATE505623T1 (de) 2006-07-24 2006-07-24 Verfahren und vorrichtung für mikrobildgebung
EP06291222A EP1882809B1 (fr) 2006-07-24 2006-07-24 Procédés et appareil de micro-imagerie
PCT/EP2007/006478 WO2008012035A1 (fr) 2006-07-24 2007-07-19 Procédé et dispositif pour micro-imagerie
US12/374,706 US20100026998A1 (en) 2006-07-24 2007-07-19 Methods and apparatus for micro-imaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06291222A EP1882809B1 (fr) 2006-07-24 2006-07-24 Procédés et appareil de micro-imagerie

Publications (2)

Publication Number Publication Date
EP1882809A1 EP1882809A1 (fr) 2008-01-30
EP1882809B1 true EP1882809B1 (fr) 2011-04-13

Family

ID=37309276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06291222A Not-in-force EP1882809B1 (fr) 2006-07-24 2006-07-24 Procédés et appareil de micro-imagerie

Country Status (5)

Country Link
US (1) US20100026998A1 (fr)
EP (1) EP1882809B1 (fr)
AT (1) ATE505623T1 (fr)
DE (1) DE602006021294D1 (fr)
WO (1) WO2008012035A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2586348C2 (ru) * 2012-01-19 2016-06-10 Халлибертон Энерджи Сервисез, Инк. Устройство распознавания ископаемых, а также соответствующая система и способ

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761186A (en) * 1972-01-17 1973-09-25 Itt Apparatus for optically inspecting the condition of a surface having known variations in the condition
DD100517A1 (fr) * 1972-10-11 1973-09-20
US3992095A (en) * 1975-06-09 1976-11-16 Trw Systems & Energy Optics module for borehole stress measuring instrument
US5004339A (en) * 1979-02-27 1991-04-02 Diffracto Ltd. Method and apparatus for determining physical characteristics of objects and object surfaces
US4281929A (en) * 1979-05-17 1981-08-04 The United States Of America As Represented By The United States Department Of Energy Small diameter, deep bore optical inspection system
DE3232904A1 (de) * 1982-09-04 1984-03-08 Robert Bosch Gmbh, 7000 Stuttgart Sonde zum automatischen pruefen von oberflaechen
DE3422271C2 (de) * 1984-06-15 1987-01-15 Bergwerksverband Gmbh, 4300 Essen Bohrlochuntersuchungsverfahren
US4849626A (en) * 1987-11-13 1989-07-18 The Babcock & Wilcox Company Fiber optic bore inspection probe
US5435176A (en) * 1993-11-01 1995-07-25 Terranalysis Corporation Hazardous waste characterizer and remediation method and system
US5663559A (en) * 1995-06-07 1997-09-02 Schlumberger Technology Corporation Microscopy imaging of earth formations
US5767510A (en) * 1996-04-15 1998-06-16 Schlumberger Technology Corporation Borehole invariant porosity measurement system
US5717455A (en) * 1996-07-02 1998-02-10 Raax Co., Ltd. System and method for three dimensional image acquisition and processing of a borehole wall
US6388251B1 (en) * 1999-01-12 2002-05-14 Baker Hughes, Inc. Optical probe for analysis of formation fluids
WO2004003506A2 (fr) * 2002-06-26 2004-01-08 Well-Dog, Inc. Detection et analyse in situ de formations de methane de gisements houillers a l'aide d'instruments optiques et procedes et appareil facilitant la production et l'analyse de methane
EP1388615A1 (fr) * 2002-08-06 2004-02-11 ABB Immobilien AG Méthode et appareil pour l'étude du sol
DE102004026702B3 (de) * 2004-05-28 2006-02-09 Deutsche Montan Technologie Gmbh Vorrichtung zur Untersuchung von Ankerbohrlöchern
CN1997871B (zh) * 2004-06-08 2011-06-08 微-埃普西龙测量技术有限两合公司 孔内侧表面的检测装置和方法
US20060272392A1 (en) * 2004-12-02 2006-12-07 Construction Technology Laboratories, Inc. Relative humidity probe for concrete

Also Published As

Publication number Publication date
DE602006021294D1 (de) 2011-05-26
US20100026998A1 (en) 2010-02-04
EP1882809A1 (fr) 2008-01-30
ATE505623T1 (de) 2011-04-15
WO2008012035A1 (fr) 2008-01-31

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