System and method for processing and transmitting information from measurements made while drilling
AssigneeSchlumberger Technology Corporation
InventorBenjamin Peter Jeffryes
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Abstract
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.
Claims27
A system for making measurements in a wellbore during the construction of the wellbore comprising:
- a first sensor located downhole adapted to measure a first downhole parameter;
- a second sensor located downhole adapted to measure a second downhole parameter;
- a downhole processor in communication with the first and second sensors configured to calculate a statistical relationship between the first and second downhole parameters;
- and
- a transmitter located downhole and in communication with the downhole processor the transmitter adapted and configured to transmit the calculated statistical relationship to the surface.
A method for making measurements in a wellbore during the construction of the wellbore comprising the steps of:
- measuring downhole a first parameter;
- measuring downhole a second parameter;
- calculating a statistical relationship between the first and second downhole parameters;
- and
- transmitting the calculated statistical relationship to the surface.
Dependencies are inferred from the claim text.