Schlumberger

Tech Report: @balance Control MPD System Saves USD 1.5 Million on Permian Basin Well

Operator reduces drilling-related costs and eliminates contingency liner while reaching target section by using MPD system in saltwater disposal well

@balance Control MPD System Saves USD 1.5 Million on Permian Basin Well

Publication Date: 10/24/2017

A well-specific MPD design was engineered to overcome problems an operator encountered during conventional drilling operations, which included losses at a rate between 10,500 and 12,600 galUS/h [39.74 and 47.69 m3/h]. The MPD plan called for reducing surface mud weight from 12.7 to 11.8 lbm/galUS [1,522 to 1,414 kg/m3] Additionally, surface backpressure would be applied and adjusted as needed to maintain a downhole pressure profile within the identified drilling window during all drilling activities. The MPD operating matrix would permit small influxes to be circulated through the MPD system at full circulating rate without having to shut in the well, significantly reducing NPT related to gas influx.




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