E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 44/00 (2006.01) E21B 47/12 (2006.01) E21B 47/00 (2006.01)
Patent
CA 2451632
Methods and systems are disclosed for downhole processing of measurements made in a wellbore during the construction of the wellbore. The system includes a sensors located downhole adapted to measure a two downhole parameters. The system uses a downhole processor to calculate a statistical relationship, preferably covariance, between the two downhole parameters. A transmitter located downhole and in communication with the downhole processor is used to transmit the calculated statistical relationship to the surface. At the surface the statistical relationship is compared with surface acquired data and surface drilling operating parameters are altered based on the statistical relationship.
La présente invention concerne des méthodes et des systèmes de traitement des mesures effectuées dans un puits pendant la construction du puits de forage. Le système comprend un capteur situé au fond du puits et adapté de façon à mesurer deux paramètres de fond de forage. Le système comporte un processeur de fond de forage pour calculer une relation statistique, de préférence la covariance, entre deux paramètres de fond de forage. Un transmetteur situé au fond du puits, et qui communique avec le processeur de fond, transmet à la surface la relation statistique calculée. € la surface, cette relation statistique est comparée avec les données acquises en surface, et les paramètres de fonctionnement du forage en surface sont modifiés en fonction de cette relation statistique.
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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