Richard Steven Reese

US Patent:

7894991, Feb 22, 2011

Filed:

Jan 29, 2009

Appl. No.:

12/361623

Inventors:

Yanil Del Castillo - Sugar Land TX, US
Joo Sitt Tan - Cypress TX, US
Richard Reese - Houston TX, US

Assignee:

Schlumberger Technology Corp. - Sugar Land TX

International Classification:

E21B 47/00

US Classification:

702 9, 702 11, 702 12, 702 13, 702 14, 166313, 166369, 16625001, 16625015, 703 10

Abstract:

A method, system, and computer program product for performing oilfield surveillance operations. The oilfield has a subterranean formation with geological structures and reservoirs therein. The oilfield is divided into a plurality of patterns, with each pattern comprising a plurality of wells. Historical production/injection data is obtained for the plurality of wells. Two independent statistical treatments are performed to achieve a common objective of production optimization. In the first process, wells and/or patterns are characterized based on Heterogeneity Index results and personalities with the ultimate goal of field production optimization. In the second process, the history of the flood is divided into even time increments. At least two domains for each of the plurality of wells are determined. Each of the at least two domains are centered around each of the plurality wells.