--> Abstract: Petroleum System Modeling Application to Assessment of Anadarko Basin Resources, Debra Higley, #90097 (2009)
[First Hit]

Datapages, Inc.Print this page

Petroleum System Modeling Application to Assessment of Anadarko Basin Resources

Debra Higley1

1United States Geological Survey

The U. S. Geological Survey is conducting a petroleum systems-based assessment of conventional and continuous (unconventional) oil and gas resources for the Anadarko Basin province. This area includes most of southwestern Kansas and western Oklahoma, the panhandle of Texas, and the Las Animas Uplift of Colorado. Formations are assigned to reservoir, source, and seal categories and grouped based on common petroleum source rock(s). Timing of oil and gas generation and migration is determined primarily from Previous Hit1-DNext Hit and 2-D petroleum system models composed of wells and reservoir layers across the province. Modeled petroleum migration flow paths are primarily radial northward from the faulted southern boundary of the basin. Migration on the Wolfcampian Chase Group is somewhat more complex. One path starts in the deep basin and radiates outward toward the Central Kansas Uplift and the Hugoton Embayment. The other migration pathway is north-northeast from the Texas panhandle to the Hugoton Embayment. These patterns suggest multiple migration pathways for petroleum in the Hugoton Field. Corrected borehole-temperature and measured vitrinite-reflectance data were used to calibrate wells used in Previous Hit1-DTop modeling of wells in the basin. Onset of petroleum generation from the Devonian Woodford Shale calculated from the Bertha Rogers 1 well (T. 10 N., R. 19 W., Sec. 27) in the deep Anadarko Basin was about 310 Ma and overmaturity was reached about 295 Ma using Woodford hydrous pyrolysis kinetics. Basing maturity history on vitrinite reflectance (Ro) resulted in onset of maturity at 310 Ma (Ro 0.55 percent) and overmaturity (Ro 4.0 percent) at 260 Ma.

 

 

������������������������������������������������������� �������������������������������������������������������������������������������������������������������������������������������