Downhole Systems for Communicating Data
AssigneeHalliburton Energy Services, Inc.
InventorGordon L. Moake
Life of this patent
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Abstract
Systems and methods are presented for communicating data representing formatted characteristics of a borehole from a downhole location to a surface location. A sensor array downhole produces a first data set from which a plurality of coefficients for use in a one-dimensional angular function are determined. The coefficients are transmitted to the surface to allow a second data set to be prepared representing the first data set. Other systems and methods are presented.
Claims20
A system for communicating data representing formation characteristics of a borehole from a downhole location to a surface location, the system comprising:
- a borehole assembly for moving by rotation or sliding within the borehole;
- a sensor array coupled to the borehole assembly and having one or more sensors to measure a formation property along a sweep of the borehole, wherein data is measured for angles relative to a reference direction, and wherein the sensor array produces a first data set characterizing the formation property along an angular sweep;
- a computational unit, which includes one or more processors and one or more memories, wherein the one or more memories are coupled to the sensor array for storing the first data set, and wherein the computational unit is configured to conduct a regression analysis on the first data set to determine a plurality of coefficients for use in a predetermined, one- dimensional angular function;
- and
- a telemetry unit coupled to the computational unit, wherein the telemetry unit receives and transmits the plurality of coefficients.
A method for communicating data representing formation characteristics of a borehole from a downhole location to a surface location, the method comprising:
- disposing a sensor array into a borehole;
- measuring a formation property along a sweep of the borehole;
- storing a first data set of measurements that characterize the formation property along an angular sweep;
- conducting a regression analysis on the first data set using a predetermined, one-dimensional angular function to determine a plurality of coefficients;
- and
- communicating the plurality of coefficients from the downhole location to the surface location.
A method for communicating data representing formation characteristics of a borehole from a downhole location to a surface location, the method comprising:
- disposing a sensor array into a borehole;
- measuring a formation property along a sweep of the borehole;
- storing a first data set of measurements that characterize the formation property along the angular sweep;
- selecting a one-dimensional, angular function from two or more predetermined, one-dimensional angular functions based on goodness of fit;
- and
- communicating a plurality of coefficients of the selected predetermined, one-dimensional angular function from the downhole location to the surface location.
Dependencies are inferred from the claim text.