Borehole shape characterization
AssigneeHalliburton Energy Services, Inc.
InventorsPaul Andrew Cooper, George Walter John Stevenson
Life of this patent
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Abstract
The shape and size of a borehole may be characterized downhole, using measurements of the borehole shape in conjunction with a catalog of shapes against which the measured shape is matched. A unique identifier for the measured borehole shape, and optionally a size parameter, may be transmitted to a surface facility, generally saving bandwidth compared with the transmission of the raw measured borehole-shape data. Alternatively or additionally, downhole measurements may be adjusted based on the measured shape. Additional methods, apparatus, and systems are disclosed.
Claims20
A method, comprising:
- measuring a shape of a borehole with a well-logging tool to provide a measured borehole shape;
- using a processor and associated memory located downhole, (i) comparing the measured borehole shape against a catalog of hole shapes stored in the downhole memory so as to identify a matching catalog shape, and (ii) determining a size parameter associated with the measured borehole shape.
A well-logging tool, comprising:
- a caliper device for measuring a borehole shape to provide a measured borehole shape;
- and
- in communication with the caliper device, a processor and memory, the memory storing a catalog of hole shapes and instructions which, when executed by the processor, cause the processor to (i) compare the measured borehole shape against the catalog of hole shapes so as to identify a matching catalog shape, and (ii) compute a size parameter associated with the measured borehole shape.
Dependencies are inferred from the claim text.