Case History of Cost Reduction Optimization Efforts in a Mature Field

摘要

Application of technically sound well and reservoirrnmanagement (WRM) principles together with cost reductionrnmeasures utilising the latest technologies are the key tornmaximising economic recovery from mature reservoirs. Thernfields are in one cluster in Petroleum Development Oman.rnMore than 250 major well entries are executed each year. Thernmain measures that are applied to improve production andrnreduce costs are: integrated reservoir surveillance plans, betterrnsequencing of the workover units, muli-disciplinary input tornworkover proposals, ESP monitoring and the introduction ofrnnew technology such as one-rig-up coiled tubing for cleanout,rnsaturation-logging, perforation & stimulation. Together thesernprocesses have reduced well intervention costs by 20% andrnincreased net oil gains by 10%. This paper aims torndemonstrate that the application of intensive WRM techniquesrnand appropriate technologies can reduce the unit cost for wellrninterventions.