Formation skin evaluation
AssigneeSchlumberger Technology Corporation
InventorsAbdulrahman Adel Al-Dosary, Ramy Ahmed
Life of this patent
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Abstract
A method can include receiving formation parameter values associated with a bore of a formation via a pressure transient analysis of a test performed by tubing that is operatively coupled to a tool that includes at least one pressure sensor. The method can include receiving a pressure stabilization value for fluid flow at a location in the bore of the formation. And, the method can include, based at least in part on the formation parameter values and the pressure stabilization value, calculating a skin factor value for the location in the bore.
Claims20
A method comprising:
- receiving formation parameter values associated with a bore of a formation as determined at a first location in the bore via a pressure transient analysis of a test performed by tubing that is operatively coupled to a tool that includes at least one pressure sensor;
- receiving a pressure stabilization value for fluid flow via the tubing as measured by the tool at a second location in the bore of the formation;
- and
- based at least in part on the formation parameter values and the pressure stabilization value, calculating a skin factor value for the second location in the bore.
A system comprising:
- a processor;
- memory operatively coupled to the processor;
- and
- instructions stored in the memory and executable by the processor to
- receive formation parameter values associated with a bore of a formation as determined at a first location in the bore via a pressure transient analysis of a test performed by tubing that is operatively coupled to a tool that includes at least one pressure sensor;
- receive a pressure stabilization value for fluid flow via the tubing as measured by the tool at a second location in the bore of the formation;
- and
- based at least in part on the formation parameter values and the pressure stabilization value, calculate a skin factor value for the second location in the bore.
One or more computer-readable media that comprise processor-executable instructions that instruct a computing device wherein the instructions comprise instructions to instruct the computing device to:
- receive formation parameter values associated with a bore of a formation as determined at a first location in the bore via a pressure transient analysis of a test performed by tubing that is operatively coupled to a tool that includes at least one pressure sensor;
- receive a pressure stabilization value for fluid flow via the tubing as measured by the tool at a second location in the bore of the formation;
- and
- based at least in part on the formation parameter values and the pressure stabilization value, calculate a skin factor value for the second location in the bore.
Dependencies are inferred from the claim text.