Pressure transient analysis of two-phase flow problems

Journal Article · Tue Apr 01 04:00:00 EST 1986 · SPE (Society of Petroleum Engineers) Format. Eval.; (United States)

DOI:https://doi.org/10.2118/10223-PA· OSTI ID:5560079

Chu, W C; Reynolds, A C; Raghavan, R

This paper considers the analysis of pressure drawdown and buildup data for two-phase flow problems. Of primary concern is the analysis of data influenced by saturation gradients that exist within the reservoir. Wellbore storage effects are assumed to be negligible. The pressure data considered are obtained from a two-dimensional (2D) numerical coning model for an oil/water system. The authors consider constant-rate production followed by a buildup period and assume that the top, bottom, and outer boundaries of the reservoir are sealed. First, they consider the case where the producing interval is equal to the total formation thickness. Second, they discuss the effect of partial penetration. In both cases, they show that average pressure can be estimated by the Matthews-Brons-Hazebroek method and consider the computation of the skin factor. They also show that a reservoir limit test can estimate reservoir PV only if the total mobility adjacent to the wellbore does not vary with time.

• Research Organization: Univ. of Tulsa
• OSTI ID: 5560079
• Journal Information: SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Format. Eval.; (United States) Vol. 1:2; ISSN SFEVE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CALCULATION METHODS
DATA ANALYSIS
DIMENSIONS
FLUID FLOW
FORMATION DAMAGE
GROUND WATER
HYDROGEN COMPOUNDS
MATHEMATICAL MODELS
OIL WELLS
OXYGEN COMPOUNDS
PRESSURE DROP
PRESSURIZING
RESERVOIR PRESSURE
SATURATION
TESTING
THICKNESS
TIME DEPENDENCE
TWO-PHASE FLOW
VOLUME
WATER
WELL PRESSURE
WELLS