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Title: Interdisciplinary study of reservoir compartments and heterogeneity. Final report, October 1, 1993--December 31, 1996

Abstract

A case study approach using Terry Sandstone production from the Hambert-Aristocrat Field, Weld County, Colorado was used to document the process of integration. One specific project goal is to demonstrate how a multidisciplinary approach can be used to detect reservoir compartmentalization and improve reserve estimates. The final project goal is to derive a general strategy for integration for independent operators. Teamwork is the norm for the petroleum industry where teams of geologists, geophysicists, and petroleum engineers work together to improve profits through a better understanding of reservoir size, compartmentalization, and orientation as well as reservoir flow characteristics. In this manner, integration of data narrows the uncertainty in reserve estimates and enhances reservoir management decisions. The process of integration has proven to be iterative. Integration has helped identify reservoir compartmentalization and reduce the uncertainty in the reserve estimates. This research report documents specific examples of integration and the economic benefits of integration.

Authors:
Publication Date:
Research Org.:
Colorado School of Mines, Golden, CO (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
OSTI Identifier:
594530
Report Number(s):
DOE/BC/14891-14
ON: DE98004778; TRN: 98:001928
DOE Contract Number:
AC22-93BC14891
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jan 1998
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 58 GEOSCIENCES; PROGRESS REPORT; RESERVOIR ROCK; HETEROGENEOUS EFFECTS; OIL FIELDS; COLORADO; PETROLEUM DEPOSITS; EXPLORATION; GEOLOGIC MODELS

Citation Formats

Van Kirk, C. Interdisciplinary study of reservoir compartments and heterogeneity. Final report, October 1, 1993--December 31, 1996. United States: N. p., 1998. Web. doi:10.2172/594530.
Van Kirk, C. Interdisciplinary study of reservoir compartments and heterogeneity. Final report, October 1, 1993--December 31, 1996. United States. doi:10.2172/594530.
Van Kirk, C. 1998. "Interdisciplinary study of reservoir compartments and heterogeneity. Final report, October 1, 1993--December 31, 1996". United States. doi:10.2172/594530. https://www.osti.gov/servlets/purl/594530.
@article{osti_594530,
title = {Interdisciplinary study of reservoir compartments and heterogeneity. Final report, October 1, 1993--December 31, 1996},
author = {Van Kirk, C.},
abstractNote = {A case study approach using Terry Sandstone production from the Hambert-Aristocrat Field, Weld County, Colorado was used to document the process of integration. One specific project goal is to demonstrate how a multidisciplinary approach can be used to detect reservoir compartmentalization and improve reserve estimates. The final project goal is to derive a general strategy for integration for independent operators. Teamwork is the norm for the petroleum industry where teams of geologists, geophysicists, and petroleum engineers work together to improve profits through a better understanding of reservoir size, compartmentalization, and orientation as well as reservoir flow characteristics. In this manner, integration of data narrows the uncertainty in reserve estimates and enhances reservoir management decisions. The process of integration has proven to be iterative. Integration has helped identify reservoir compartmentalization and reduce the uncertainty in the reserve estimates. This research report documents specific examples of integration and the economic benefits of integration.},
doi = {10.2172/594530},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1998,
month = 1
}

Technical Report:

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  • The major project objective is to help move small American businesses (oil and gas independent operators) from traditional practices in oil and gas reservoir management to an unproved integrated team approach making better use of information and the expertise of people. This objective is being accomplished in two ways: (1) Specific examples resulting from our field study, and (2) A general manual documenting the process of integrating data and people from the disciplines of geology, geophysics, and petroleum engineering. An actual oil field in the Denver Julesburg Basin in Colorado was selected to test the methods of integration. Efforts duringmore » this quarter were dedicated to history matching of the simulation model and to planning for various forecast runs. The geologic model and the engineering analysis resulted in a reservoir simulation model that is representative of the main features of the reservoir, such as the compartments and differing gas-oil contacts in each compartment. As a result of the history matching process, changes were made in the model. The economic significance of these changes, if any, will be addressed in the final report.« less
  • A case study approach using Terry Sandstone production from the Aristocrat-Hambert Field, Weld County, Colorado is being used to document the process of integration. One specific project goal is to demonstrate how a multidisciplinary approach can be used to detect reservoir compartmentalization. Teamwork is the norm for the petroleum industry. Teams of geologists, geophysicists, and petroleum engineers work together to improve profits through a better understanding of reservoir size, compartmentalization, and orientation as well as reservoir flow characteristics. In this manner, integration of data narrows the uncertainty in reserve estimates and enhances reservoir management decisions. The process of integration hasmore » proven to be an iterative process. Integration has helped identify reservoir compartmentalization and reduce the uncertainty in the reserve estimates. The goal during the final phase of the project will be to quantify the value of integration and provide a template for making decisions.« less
  • This DOE research project was established to document the integrated team approach for solving reservoir engineering problems. A field study integrating the disciplines of geology, geophysics, and petroleum engineering will be the mechanism for documenting the integrated approach. This is an area of keen interest to the oil and gas industry. The goal will be to provide tools and approaches that can be used to detect reservoir compartments, reach a better reserve estimate, and improve profits early in the life of a field. Brief summaries are provided for the following six tasks: reservoir selection and data gathering; outcrop/core/log analysis/and correlations;more » internal architecture description; seismic analysis; detailed reservoir engineering evaluation; and permeability experimental work. Where appropriate reports by the research professors and the research assistants are included in the appendix.« less
  • This United States Department of Energy (DOE) research project was established to document the integrated team approach for solving reservoir engineering problems. A field study integrating the disciplines of geology, geophysics, and petroleum engineering will be the mechanism for documenting the integrated approach. This is an area of keen interest to the oil and gas industry. The goal will be to provide tools and approaches that can be used to detect reservoir compartments, reach a better reserve estimate, and improve profits early in the life of a field.
  • This is the final report of a three year research project on the use of tracers for reservoir characterization. The objective of this research was to develop advanced, innovative techniques for the description of reservoir characteristics using both single-well backflow and interwell tracer tests. (1) The authors implemented and validated tracer modeling features in a compositional simulator (UTCOMP). (2) They developed and applied a new single well tracer test for estimating reservoir heterogeneity. (3) They developed and applied a new single well tracer test for estimating reservoir wettability in-situ. (4) They developed a new, simple and efficient method to analyzemore » two well tracer tests based upon type curve matching and illustrated its use with actual field tracer data. (5) They developed a new method for deriving an integrated reservoir description based upon combinatorial optimization schemes. (6) They developed a new, interwell tracer test for reservoir heterogeneity called vertical tracer profiling (VTP) and demonstrated its advantages over conventional interwell tracer testing. (7) They developed a simple and easy analytical method to estimate swept pore volume from interwell tracer data and showed both the theoretical basis for this method and its practical utility. (8) They made numerous enhancements to our compositional reservoir simulator such as including the full permeability tensor, adding faster solvers, improving its speed and robustness and making it easier to use (better I/0) for tracer simulation problems. (9) They applied the enhanced version of UTCOMP to the analysis of interwell tracer data using perfluorocarbons at Elks Hill Naval Petroleum Reserve. All of these accomplishments taken together have significantly improved the state of reservoir tracer technology and have demonstrated that it is a far more powerful and useful tool for quantitative reservoir characterization than previously realized or practiced by the industry.« less