--> --> Abstract: The Aliso Canyon Gas Storage Field 3-D Geologic Model, Los Angeles, County, California, by D. S. Kunitomi and C. Ikonte; #90904 (2001)
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The Aliso Canyon Gas Storage Field 3-D Geologic Previous HitModelNext Hit, Los Angeles, County, California

D. S. Kunitomi1 and C. Ikonte2
1Camarillo, CA
2Southern California Gas Co, Chatsworth, CA

The Aliso Canyon gas storage field is among the 10 largest fields in the United States and is one of five operated by Southern California Gas Co. Currently operating are 89 injection/withdrawal wells, 16 storage zone oil-producing wells and 8 observation wells. The field has cushion gas and working gas capacity of 91.5 and 70 billion cubic feet respectively. Natural gas from fields in Texas, Oklahoma and New Mexico is injected from April 1 to November 1 for winter demand.

The subsurface geology of Aliso Canyon field is typical of many large California oil fields in that it is structurally complex. The field has numerous fault-bounded blocks, three unconformities, reservoir sand discontinuities and varying fluid contacts. The subsurface data available ranged in age from 62 years to 5 years old and there were no digital records of any kind. The geologic Previous HitmodelNext Hit was created to replicate the 2D maps and sections from earlier studies.

A number of previous geologic and petrophysical studies were integrated to obtain a geologic Previous HitmodelNext Hit of the field. 3-D computer generated modeling enable us to achieve a field-wide view of both the shallow oil and deep storage zones. Advantages of this approach included the systematic organization of vast quantities of data, visualization of the role of faulting in reservoir pressure and well performance and testing the validity of reservoir sand continuity. The information generated as a result of the study was incorporated into an integrated computerized geologic and engineering Previous HitmodelNext Hit, which served as a tool for better understanding the field and was input into a reservoir simulation Previous HitmodelNext Hit. Results of this project resulted in identification of future drilling locations, optimum base-load determination, storage inventory Previous HitverificationTop and oil production and gas injection/ withdrawal optimization.

AAPG Search and Discovery Article #90904©2001 AAPG Pacific Section Meeting, Universal City, California