Reservoir characterization of the giant Hugoton gas field, Kansas
- Amoco Production Co., Denver, CO (United States)
- Amoco Production Co., Houston, TX (United States); and others
Hugoton field in Kansas is the largest gas field in North America, with cumulative production over 23 Tcf. Infill and deep drilling activity over the last 10 yr have made it possible to build an extensive database of modern wireline log and core data. Such data formed the basis for a wide-ranging reservoir characterization done to obtain critical information for optimum reservoir management of the field. Reservoir heterogeneity and formation-evaluation problems made it difficult to characterize fluid distribution, estimate gas in place, and determine permeability from wireline log data, but few of the problems in this reservoir characterization study are unique to Hugoton. The techniques described here may be applicable to other reservoirs. Technologies employed to solve the formation-evaluation and lateral-variability problems included artificial neural networks, resistivity modeling, geostatistics, and three-dimensional grid manipulation. The application of new technologies to problems in characterizing the Hugoton reservoir yielded both tools for evaluating specific areas of the field and a better understanding of fieldwide pore volume gas in place (PVGIP) and its distribution. Geologic maps that include sealing faults, plus well plots from new applications of formation evaluation techniques, provide valuable tools to operations teams for increasing production and decreasing costs. PVGIP is estimated to be between 34.5 and 37.8 Tcf. The distribution of, and uncertainty in, the PVGIP values are important because they are also used to better manage the reservoir.
- OSTI ID:
- 563425
- Journal Information:
- AAPG Bulletin, Journal Name: AAPG Bulletin Journal Issue: 11 Vol. 81; ISSN 0149-1423; ISSN AABUD2
- Country of Publication:
- United States
- Language:
- English
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