BR9911307A - Process to determine an azimuth angle of a well formed in a geological formation - Google Patents

Process to determine an azimuth angle of a well formed in a geological formation

Info

Publication number
BR9911307A
BR9911307A BR9911307-4A BR9911307A BR9911307A BR 9911307 A BR9911307 A BR 9911307A BR 9911307 A BR9911307 A BR 9911307A BR 9911307 A BR9911307 A BR 9911307A
Authority
BR
Brazil
Prior art keywords
well
magnetic field
magnetometric
drilling column
tool
Prior art date
Application number
BR9911307-4A
Other languages
Portuguese (pt)
Inventor
Robin Adrianus Hartmann
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of BR9911307A publication Critical patent/BR9911307A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Abstract

"PROCESSO PARA DETERMINAR UM âNGULO AZIMUTAL DE UM POçO FORMADO EM UMA FORMAçãO GEOLóGICA". Proporciona-se um processo para determinar um ângulo azimutal de um poço formado em uma formação geológica, usando-se uma ferramenta magnetométrica disposta em uma coluna de perfuração que se estende no poço, a ferramenta magnetométrica tendo uma orientação selecionada em relação à coluna de perfuração. O processo compreende a) selecionar pelo menos duas localizações ao longo do poço em que dito poço tenha diferentes inclinações selecionadas, b) para cada localização selecionada, dispor a coluna de perfuração no poço, de um tal modo que a ferramenta magnetométrica fique posicionada na localização selecionada, e operar a ferramenta magnetométrica de modo a medir o campo magnético local, incluindo o campo magnético terrestre e um campo de magnetização da coluna de perfuração que tenha um componente em um plano substancialmente vertical através do eixo longitudinal da coluna de perfuração na localização selecionada, c) determinar, a partir do campo magnético medido e das inclinações do poço selecionadas, o dito componente do campo de magnetização da coluna de perfuração, d) corrigir o campo magnético medido para o dito componente do campo de magnetização da coluna de perfuração, e e) determinar, a partir do campo magnético corrigido, o azimute do poço."PROCESS TO DETERMINE AN AZIMUTAL ANGLE OF A WELL FORMED IN A GEOLOGICAL FORMATION". A process is provided to determine an azimuthal angle of a well formed in a geological formation, using a magnetometric tool arranged in a drilling column that extends into the well, the magnetometric tool having a selected orientation in relation to the drilling column . The process comprises a) selecting at least two locations along the well where said well has different selected slopes, b) for each selected location, arrange the drilling column in the well, in such a way that the magnetometric tool is positioned at the location selected, and operate the magnetometric tool in order to measure the local magnetic field, including the terrestrial magnetic field and a magnetization field of the drill string that has a component in a substantially vertical plane through the longitudinal axis of the drill string at the selected location , c) determine, from the measured magnetic field and the selected slopes of the well, said component of the magnetization field of the drilling column, d) correct the measured magnetic field for said component of the magnetization field of the drilling column, and e) determine, from the corrected magnetic field, the azimuth of the p hollow.

BR9911307-4A 1998-06-18 1999-06-14 Process to determine an azimuth angle of a well formed in a geological formation BR9911307A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98304821 1998-06-18
PCT/EP1999/003940 WO1999066173A1 (en) 1998-06-18 1999-06-14 Method of determining azimuth of a borehole

Publications (1)

Publication Number Publication Date
BR9911307A true BR9911307A (en) 2001-03-13

Family

ID=8234883

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911307-4A BR9911307A (en) 1998-06-18 1999-06-14 Process to determine an azimuth angle of a well formed in a geological formation

Country Status (9)

Country Link
EP (1) EP1088152B1 (en)
CN (1) CN1305565A (en)
AU (1) AU748917B2 (en)
BR (1) BR9911307A (en)
CA (1) CA2334920C (en)
DE (1) DE69923179T2 (en)
ES (1) ES2237113T3 (en)
NO (1) NO320686B1 (en)
WO (1) WO1999066173A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6854192B2 (en) 2001-02-06 2005-02-15 Smart Stabilizer Systems Limited Surveying of boreholes
GB0102900D0 (en) * 2001-02-06 2001-03-21 Smart Stabiliser Systems Ltd Surveying of boreholes
GB0221753D0 (en) 2002-09-19 2002-10-30 Smart Stabilizer Systems Ltd Borehole surveying

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8504949D0 (en) * 1985-02-26 1985-03-27 Shell Int Research Determining azimuth of borehole
US4709486A (en) * 1986-05-06 1987-12-01 Tensor, Inc. Method of determining the orientation of a surveying instrument in a borehole
EG20489A (en) * 1993-01-13 1999-06-30 Shell Int Research Method for determining borehole direction
US5321893A (en) * 1993-02-26 1994-06-21 Scientific Drilling International Calibration correction method for magnetic survey tools
AU7190294A (en) * 1994-07-14 1996-02-16 Baker Hughes Incorporated Method of correcting for error components in wellbore survey data

Also Published As

Publication number Publication date
NO20006450D0 (en) 2000-12-18
NO320686B1 (en) 2006-01-16
CN1305565A (en) 2001-07-25
AU748917B2 (en) 2002-06-13
AU4509399A (en) 2000-01-05
EP1088152B1 (en) 2005-01-12
EP1088152A1 (en) 2001-04-04
DE69923179T2 (en) 2006-01-05
DE69923179D1 (en) 2005-02-17
CA2334920A1 (en) 1999-12-23
CA2334920C (en) 2008-04-29
NO20006450L (en) 2001-02-16
WO1999066173A1 (en) 1999-12-23
ES2237113T3 (en) 2005-07-16

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law

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B08K Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87)

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1871 DE 14/11/2006.