Wells – Processes – With indicating – testing – measuring or locating
Patent
1997-09-29
1999-11-30
Suchfield, George
Wells
Processes
With indicating, testing, measuring or locating
166 53, 16625001, E21B 3416, E21B 4312, E21B 4706
Patent
active
059925191
ABSTRACT:
The method for the active or automated control of the reservoir uses a reservoir model with available data such as seismic, log, and core data as inputs, and uses the reservoir model in conjunction with a reservoir simulation tool in order to determine a production strategy which will maximize certain criteria, e.g., profits. The production strategy may include fixed elements which are not easily altered once the wells go into production, and variable elements which can be adjusted without serious effort during production. The production strategy is implemented by drilling wells, etc., and fluids are then controllably produced from the reservoir according to the variable production strategy; i.e., fluid flow rates are monitored by sensors, and, by adjusting control valves, are kept to desired values (which may change over time) set according to the variable production strategy. According to another aspect of the invention, information gleaned as a result of the adjustments to the control means is used to update the reservoir model. As a result, the variable and fixed production strategies can be updated and implemented.
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Ramakrishnan et al., "Testing injection wells with rate and pressure data", Sep. 1994, pp. 228-236.
Baker et al., "Permanent monitoring-looking at lifetime reservoir dynamics", Winter 1995, Oilfield Review, pp. 32-46.
Ramakrishnan, "Integrated Petroleum Reservior Management", Chapter 6, (1994) pp. 101-140.
Ramakrishnan Terizhandur S.
Thambynayagam R. K. Michael
Batzer William B.
Gordon David P.
Schlumberger Technology Corporation
Suchfield George
LandOfFree
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