Analysis of pressure data from a restricted-entry well in a multilayer reservoir

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:7076415

Yeh, N S; Reynolds, A C

This work presents new semilog type curves for analyzing data obtained at a restricted-entry well completed in a multilayer reservoir where crossflow occurs between reservoir layers. Effective use of the type curve requires that wellbore storage effects become negligible prior to the time when pseudoradial flow begins, or, that the total sandface rate is measured so that wellbore storage effects can be removed by methods based on Duhamel's principle. By using the new type curve in conjunction with standard semilog analysis of pseudoradial flow pressure data, a complete analysis of pressure data is possible. Specifically, standard semilog analysis of pseudoradial flow pressure data yields estimates of the total flow capacity and the total skin factor. The new type curve can then be used to estimate the real skin factor due to damage or stimulation, the flow capacity adjacent to the open (perforated) interval and the effective average vertical permeability.

• Research Organization: Univ. of Tulsa
• OSTI ID: 7076415
• Report Number(s): CONF-861080-
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CAPACITY
FLUID FLOW
FORMATION DAMAGE
GEOLOGIC DEPOSITS
LAYERS
MATHEMATICS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS WELLS
OIL WELLS
PERFORATION
PERMEABILITY
PETROLEUM DEPOSITS
PRESSURE MEASUREMENT
RESERVOIR PRESSURE
RESOURCES
STATISTICS
STORAGE
WELL COMPLETION
WELL PRESSURE
WELLS