Analysis of buildup tests with short producing time

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · SPE (Society of Petroleum Engineers) Format. Eval.; (United States)

DOI:https://doi.org/10.2118/11083-PA· OSTI ID:5213325

Soliman, M Y

Pressure buildup data with short producing time are often difficult to analyze. Although the semilog method, known as the Horner method, can be used, the drawdown type curve should not. Thus it is difficult to determine whether the semilog plot actually includes the correct straight line. In this paper, a new log-log graph specially designed for a pressure buildup test with short producing time is suggested. This graph allows the user to determine easily the type of flow regime (linear, bilinear, or radial). Consequently, it can be used to detect the presence of the correct semilog straight line. The new graph can also be used to calculate the formation permeability or fracture conductivity in a fashion similar to the semilog method. The analytical models used to develop the new technique are presented. The models consider both well-bore storage and skin effect. A field example is presented and discussed. Use of the new technique to analyze a buildup test with short producing time is presented and briefly compared with the existing techniques.

• Research Organization: Halliburton Services Research Center, Duncan, OK
• OSTI ID: 5213325
• Journal Information: SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Format. Eval.; (United States) Vol. 1:4; ISSN SFEVE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DATA ANALYSIS
DRAWDOWN
FLOW RATE
FLUID FLOW
FORMATION DAMAGE
GRAPHS
HYDRAULIC CONDUCTIVITY
NATURAL GAS WELLS
OIL WELLS
PERMEABILITY
PRESSURIZING
PRODUCTION
PRODUCTION LOGGING
TESTING
TIME DEPENDENCE
WELL LOGGING
WELLS