Cormorant: Development of a complex field

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:7159998

Stiles, J H; McKee, J W

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.

• Research Organization: Esso E and P
• OSTI ID: 7159998
• Report Number(s): CONF-861080-
• 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

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
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GEOLOGY
MONITORING
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