Prior to 1995, sand production from the non-gravel packed wells and low productivity from a gravel packed well were factors which impacted the potential development of the Ewan Field, offshore Nigeria. To make the field a more attractive development candidate, horizontal and frac-pack completions were recommended. This paper compares the results of the first frac-packed well, which was expected to improve both production rates and ultimate recovery, with the previous gravel pack completion. Pressure build-up and production data show the improved productivity obtained after frac-packing. The results from the first frac-pack were so encouraging that field development includes frac-pack completions for all non-horizontal wells.

Keywords:
reservoir, completion, flow condition, chevron nigeria, frac-pack completion, fracture, flow period, nitrogen gas lift, offer development advantage, drillstem/well testing
Subjects:
Hydraulic Fracturing, Artificial Lift Systems, Reservoir Characterization, Formation Evaluation & Management, Frac and pack, Gas lift, Drillstem/well testing, Sand Control, Completion Operations
Copyright 1996, Society of Petroleum Engineers
You can access this article if you purchase or spend a download.