Tiefenpositionsbestimmung mittels Gammastrahlenkorrelation und differenziellen Bohrlochparametern
Anmelder: Services Pétroliers Schlumberger, Schlumberger Holdings Limited, Schlumberger Technology B.V., Services Petroliers Schlumberger 🇫🇷
Details
- Veröffentlichungs-Nr.
- EP2966258
- Aktenzeichen
- EP14290206
- Anmeldetag
- 10. Juli 2014
- Veröffentlichung
- 21. November 2018
- Erteilung
- 21. November 2018
- Rechtsraum
- EP
- IPC
- E21B47/06E21B47/09E21B47/12E21B49/00E21B47/04
Abstract
A method for determining the location of a tubular string or downhole component in a wellbore including placing a tubular string (315) into a wellbore (310) having at least one radioactive source (400), the tubular string having a depth measurement module (102) and obtaining a plurality of downhole parameter measurements, wherein at least one downhole parameter is a function of depth. The method also includes obtaining a plurality of radiation intensity measurements and determining a length change, L , of the tubular string in the wellbore utilized in order to obtain the plurality of downhole parameter measurements and the plurality of radiation intensity measurements. The method also includes determining the location of the depth measurement module in the wellbore based on a correlation of the plurality of downhole parameter measurements, the plurality of radiation intensity measurements, and the length change L of the tubular string in the wellbore.
Anmelder
- Firmen
- Services Pétroliers Schlumberger
Schlumberger Holdings Limited
Schlumberger Technology B.V.
Services Petroliers Schlumberger - Land
- 🇫🇷 Frankreich
Weltweit führendes Öl- und Gasdienstleistungsunternehmen mit Wurzeln in Frankreich, operativ heute vor allem aus Houston und Paris geführt (unter der Marke SLB). Aktiv in Bohrtechnik, Reservoirmanagement, Seismik und digitalen Lösungen für die Energiebranche.
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Schlumberger Intellectual Property Department
Schlumberger Intellectual Property Department · Den Haag