Analysis and optimization of gas pipeline networks and surface production facilities for the Waskom Field--Harrison County, Texas

Abstract

This research has developed a computer simulation of the production facilities model of the Waskom Field in order to analyze existing and future production methods. The Waskom Field, located in East Texas, is a redeveloped reservoir sequence that produces primarily natural gas with minor amounts of oil and gas-condensate from the Upper and Lower Cotton Valley Sands as well as Sands in the Travis Peak sequence. The present gas production at Waskom Field averages about 12,000 Mcf/D. We have used data and the current production history to create a model of the surface production facilities, and we will simulate field performance by using a computer simulation package. In particular, all of the field facilities as well as the production history are included in these simulation Surface facilities for the Waskom field include pipelines of varying, sizes, separators, compressors, valves, and production manifolds. After creating and verifying the field model, we determined that the field possesses greater compressor capabilities than it requires. A simulation was performed where by the rental compressor in the Reuben Pierce lease was removed. The computer simulation showed that we can lower the last line pressure to 200 psig from 450 psig (which the operator was eventually able to negotiate) and the remaining compressors can sufficiently compress all of the gas currently produced in the field. Our few additional recommendations are to clean the separators, remove dual separator layouts, and remove several constricting valves that were identified from the simulation.