NO923132L - PROCEDURE FOR AA CORRECT MAGNETIC MEASUREMENTS MADE IN A BROWN WITH A MEASURING DEVICE, FOR AA DETERMINE ITS ASIMUT - Google Patents

PROCEDURE FOR AA CORRECT MAGNETIC MEASUREMENTS MADE IN A BROWN WITH A MEASURING DEVICE, FOR AA DETERMINE ITS ASIMUT

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Publication number
NO923132L
NO923132L NO92923132A NO923132A NO923132L NO 923132 L NO923132 L NO 923132L NO 92923132 A NO92923132 A NO 92923132A NO 923132 A NO923132 A NO 923132A NO 923132 L NO923132 L NO 923132L
Authority
NO
Norway
Prior art keywords
drill string
asimut
brown
procedure
measuring device
Prior art date
Application number
NO92923132A
Other languages
Norwegian (no)
Other versions
NO923132D0 (en
Inventor
Gilles Nicolle
Michel Hourcard
Didier Gazaniol
Calude Mabile
Original Assignee
Inst Francais Du Petrole
Total Sa
Elf Aquitaine
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 FR9015656A external-priority patent/FR2670532B1/en
Application filed by Inst Francais Du Petrole, Total Sa, Elf Aquitaine filed Critical Inst Francais Du Petrole
Publication of NO923132D0 publication Critical patent/NO923132D0/en
Publication of NO923132L publication Critical patent/NO923132L/en

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Abstract

Et måleverktøy som omfatter en enhet (4), for å måle jor- dens magnetfelt, fores inn i en borestreng (2) som forbinder et boreverktøy (3) med en overflateinstallasjon. Fremgangs- måten gjer det mulig å skille ut forstyrrelser som påvirker det målte jordmagnetfeltet, og som skyldes f.eks. borestren- gen. Den omfatter stegene å stoppe verktøyet i løpet av dettes fremdrift i brønnen i suksessive stopp-posisjoner plassert i avstand fra hverandre langs borestrengens akse, hvor vinkelposisjonen av måleenheten (4) i disse posisjonene er tilfeldig, og ved å benytte en statistisk beregningsmetode for å kombinere de forskjellige målingene og bestemme det forstyrrende feltet. Mulige anvendelser er f.eks. bestemmelse av en brønns asimut og helningsvinkel.A measuring tool comprising a unit (4), for measuring the earth's magnetic field, is fed into a drill string (2) connecting a drilling tool (3) to a surface installation. The method makes it possible to distinguish disturbances affecting the measured earth magnetic field, which are due, for example, to the drill string. It comprises the steps of stopping the tool during its progress in the well in successive stop positions spaced apart along the axis of the drill string, where the angular position of the unit of measurement (4) in these positions is random, and by using a statistical calculation method to combine the various measurements and determine the interfering field. Possible uses are e.g. determination of a well's azimuth and inclination angle.

NO92923132A 1990-12-12 1992-08-11 PROCEDURE FOR AA CORRECT MAGNETIC MEASUREMENTS MADE IN A BROWN WITH A MEASURING DEVICE, FOR AA DETERMINE ITS ASIMUT NO923132L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9015656A FR2670532B1 (en) 1990-12-12 1990-12-12 METHOD FOR CORRECTING MAGNETIC MEASUREMENTS MADE IN A WELL BY A MEASURING APPARATUS FOR THE PURPOSE OF DETERMINING ITS AZIMUT.
PCT/FR1991/001000 WO1992010642A1 (en) 1990-12-12 1991-12-11 Method for correcting magnetic measurements made to determe the azimuth of a well

Publications (2)

Publication Number Publication Date
NO923132D0 NO923132D0 (en) 1992-08-11
NO923132L true NO923132L (en) 1992-10-12

Family

ID=26228382

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92923132A NO923132L (en) 1990-12-12 1992-08-11 PROCEDURE FOR AA CORRECT MAGNETIC MEASUREMENTS MADE IN A BROWN WITH A MEASURING DEVICE, FOR AA DETERMINE ITS ASIMUT

Country Status (1)

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NO (1) NO923132L (en)

Also Published As

Publication number Publication date
NO923132D0 (en) 1992-08-11

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