--> --> ABSTRACT: The Impact of Dynamic Behavior of Fault Zone to Field's Production and Development Strategies, by Onyeagoro, U.O., S. J. Naruk; #90026 (2004)
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Onyeagoro, U.O.1, S. J. Naruk1 
(1) Shell International Exploration and Production, Houston, TX

ABSTRACT: The Impact of Dynamic Behavior of Previous HitFaultNext Hit Zone to Field's Production and Development Strategies

In greenfield or new-field wildcat exploration for Previous HitfaultNext Hit traps, it is of course critical to be able to predict the static, or geologic-time, seal capacity of the prospect-bounding faults. In contrast, in brown-field or near-field exploration, and in field development, it is critical to be able to predict dynamic Previous HitfaultNext Hit-seal capacities, i.e., whether or not existing production from one Previous HitfaultNext Hit block has “broken-down” a Previous HitfaultNext Hit, caused cross-Previous HitfaultNext Hit flow, and depleted a nearby Previous HitfaultNext Hit block. This is especially important in complexly faulted Deep Water developments, where individual wells cost on the order of 50-100 million USD. 
Even in relatively less costly but complexly faulted fields like those in the onshore settings of the Niger Delta, dynamic Previous HitfaultNext Hit seal prediction is critical to well optimization. In particular, estimation of cross-Previous HitfaultNext Hit flow and Previous HitfaultNext Hit transmissibility in these influences well counts, well placements, and ultimate recoveries of individual wells and the entire field. 
For faulted reservoirs, significant cross-Previous HitfaultNext Hit production of hydrocarbons appears to be the exception rather than the rule. The real challenge is to find those faults that will allow adequate cross-Previous HitfaultNext Hit oil production and thereby save the cost of additional wells. 
The dynamic Previous HitfaultNext Hit seal prediction techniques have been applied in the Niger delta, Gulf of Mexico and North Sea to drill high angle wells, design pressure interference tests and obtain better history matches and forecast scenarios in reservoir simulations. These applied results have yielded a producing 20,000bbls/day well, proposed well trajectory that will drain about 80MMSTB connected volume of oil and drilling of an additional well to recover by-passed reserves trapped under a Previous HitfaultTop compartment.

 

AAPG Search and Discovery Article #90026©2004 AAPG Annual Meeting, Dallas, Texas, April 18-21, 2004.