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Title: Cormorant: Development of a complex field

Abstract

The Cormorant Field provides an example of the numerous changes which are required to the development plan for a large, complex field as the nature of its complexity becomes better known. Changes in the basic development and displacement pattern, the number and spacing of wells, and completion method have occurred as the structural, stratigraphic and diagenetic nature of the field has been uncovered. In addition, a better understanding of a key development constraint, the drilling reach, has allowed changes with significant cost savings. While a well thought out initial development plan was formulated for the field, close surveillance of geological results and field performance has been necessary to allow its almost continuous updating. This paper discusses studies and evaluations undertaken by Esso Exporation and Production U.K. to evaluate such changes. In addition to a discussion of each of the four fault blocks comprising the field, the following are addressed: (1) the role of detailed reservoir description work, (2) use of partial perforation techniques for waterflood control, and (3) the tailoring of reservoir monitoring to the specific problems of Cormorant. These studies were done to complement work done by the operator, Shell U.K. Exploration and Production, who prepared the base developmentmore » plan and subsequent updates.« less

Authors:
;
Publication Date:
Research Org.:
Esso E and P
OSTI Identifier:
7159998
Report Number(s):
CONF-861080-
Resource Type:
Conference
Resource Relation:
Conference: Society of Petroleum Engineers annual technical conference and exhibition, New Orleans, LA, USA, 5 Oct 1986
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; NATURAL GAS WELLS; RESERVOIR ENGINEERING; OIL WELLS; UNITED KINGDOM; NATURAL GAS FIELDS; OIL FIELDS; COST; FIELD TESTS; GEOLOGY; MONITORING; PERFORATION; PERFORMANCE TESTING; PETROLEUM INDUSTRY; RESEARCH PROGRAMS; STRATIGRAPHY; WATER RESERVOIRS; WELL COMPLETION; WELL DRILLING; DRILLING; ENGINEERING; EUROPE; GEOLOGIC DEPOSITS; INDUSTRY; MINERAL RESOURCES; NATURAL GAS DEPOSITS; PETROLEUM DEPOSITS; RESOURCES; SURFACE WATERS; TESTING; WELLS; WESTERN EUROPE; 020300* - Petroleum- Drilling & Production; 030300 - Natural Gas- Drilling, Production, & Processing

Citation Formats

Stiles, J H, and McKee, J W. Cormorant: Development of a complex field. United States: N. p., 1986. Web.
Stiles, J H, & McKee, J W. Cormorant: Development of a complex field. United States.
Stiles, J H, and McKee, J W. 1986. "Cormorant: Development of a complex field". United States.
@article{osti_7159998,
title = {Cormorant: Development of a complex field},
author = {Stiles, J H and McKee, J W},
abstractNote = {The Cormorant Field provides an example of the numerous changes which are required to the development plan for a large, complex field as the nature of its complexity becomes better known. Changes in the basic development and displacement pattern, the number and spacing of wells, and completion method have occurred as the structural, stratigraphic and diagenetic nature of the field has been uncovered. In addition, a better understanding of a key development constraint, the drilling reach, has allowed changes with significant cost savings. While a well thought out initial development plan was formulated for the field, close surveillance of geological results and field performance has been necessary to allow its almost continuous updating. This paper discusses studies and evaluations undertaken by Esso Exporation and Production U.K. to evaluate such changes. In addition to a discussion of each of the four fault blocks comprising the field, the following are addressed: (1) the role of detailed reservoir description work, (2) use of partial perforation techniques for waterflood control, and (3) the tailoring of reservoir monitoring to the specific problems of Cormorant. These studies were done to complement work done by the operator, Shell U.K. Exploration and Production, who prepared the base development plan and subsequent updates.},
doi = {},
url = {https://www.osti.gov/biblio/7159998}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}

Conference:
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