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Generation of PVT properties for modified black-oil simulation of volatile oil and gas condensate reservoirs /

This paper presents a discussion of methods for generating

Bibliographic Details
Main Author: McVay, Duane Allen, 1958-
Format: Thesis Book
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1994.
Subjects:
Major petroleum engineering.
Online Access:http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=741965631&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
Description
Summary:This paper presents a discussion of methods for generating
PVT properties for modified black-oil simulation of volatile
oil and gas condensate reservoir fluids. Methods for
generating modified black-oil PVT properties have been
presented previously in the petroleum literature. However,
it is not apparent how the PVT properties generated by these
methods differ, and how the differences affect modified
black-oil simulation results. Modified black-oil PVT
property generation methods are evaluated by comparing the
results of modified black-oil simulation to results of full
equation-of-state (EOS) compositional simulation. The
methods are evaluated using ternary fluid systems and four
actual reservoir fluid systems spanning a wide range of
volatile oil and gas condensate fluid characteristics. The
results indicate that modified black-oil simulation of
reservoir depletion using PVT properties generated with the
Whitson and Torp I method provides better agreement with
full EOS compositional simulation than modified blackoil
simulation using PVT properties generated using the Coats2
method.
This paper also presents a method for generating
modified black-oil PVT properties from laboratory
constant volume depletion (CVD) data without using a
regressed EOS. A K-value model, based on the method of
Hoffman, Crump and Hocott3, is developed to smooth and
extrapolate (to the saturation pressure) K-values
obtained from laboratory CVD data. The smoothed K-
values are used to regenerate mathematically CVD data
from which modified black-oil PVT properties are
reservoir depletion using PVT properties generated from
laboratory data and smoothed with the K-value model
show reasonable agreement with full EOS compositional
simulation.
Item Description:Vita.
"Major Subject: Petroleum Engineering".
Physical Description:xii, 107 leaves : illustrations ; 28 cm.
Issued also on microfiche from University Microfilms Inc.
Bibliography:Includes bibliographical references.