Research and Application of Multifunctional one Trip Ttubing Combined High Efficiency Well Servicing Technology
In order to shorten the operation time,improve workover efficiency,control labor costs,and achieve cost reduction and efficiency increase,an optimization design method of"one trip pipe workover"is proposed,and a series of technologies of"fixed pipe joint operation"are developed to establish a new mode of"multi process integration"operation speed increase.By op-timizing and integrating the design of a single pipe joint operation string,innovative research and development of a multi-functional combination tool string,a total of ten joint operation technolo-gies have been formed,including five categories:perforation pump joint operation,flushing pump joint operation,fracturing pump joint operation,releasing pump joint operation,and well repair single pipe joint operation.By utilizing only one trip of the pipe string,the workload of traditional technology requiring three trips of pipe string operations can be completed.Under the premise of achieving the same operation purpose,technical problems such as wellhead blowout pollution and high risk of well control during pressure pipe tripping can also be solved.The joint operation technology has been promoted a total of 152 wells in Jianghan Oil Region,reducing the number of trips and pipe replacements by 744 000 m.The average operation time for a single well has been shortened by 26 hours,reducing the cost of workover by ¥35 000 yuan,and improving the efficiency of workover by about 30％.
multi functionalone trip managementjoint constructionmulti processblowout preventionjob duration
NETL
NSTL
万方数据
维普
