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US 8,620,636 B2Granted
Interpreting well test measurements
AssigneeSchlumberger Technology Corporation
InventorsLang Zhan, Fikri J. Kuchuk, James G. Filas, Dhandayuthapani Kannan
Life of this patent
Estimating the term…
Abstract
Based on measurements that are obtained from a well test, a pressure in the well is modeled as a function of at least a skin effect factor that varies with time. The results of the modeling may be used to estimate at least one well parameter, such as a formation parameter and/or a well pressure, as examples.
Claims19
A method comprising:
- based on measurements obtained in a well during a dynamic fluid flow, modeling a pressure in the well as a function of at least a skin effect factor that varies with time;
- and
- performing a test in the well to obtain the measurements, wherein performing the test comprises closing off a surge chamber in response to a downhole parameter measured in connection with the test.
Dependencies are inferred from the claim text.