Research On Horizontal Well Muds Of Complex Area

With oil and gas development continues to advance,hypotonic difficult recoverable reserves have become an important resource for the development of Jilin Oilfield proceed.Horizontal well technology is the development of low permeability reservoir effective technical means thin,dry Ann Jilin Oilfield,Haituozi,Honggang other areas easily collapse leaky,the construction of horizontal wells to bring great difficulties.Jilin Oilfield complex areas for drilling horizontal wells in the presence of technical problems,by studying the formation of:1,effective leak-proof sealing technology;2,sloughing drilling fluid technology;3,severe collapse zone Haituozi sloughing drilling performance enhanced technology;4,long horizontal section horizontal well drilling protection technology.Drilling supporting technologies through field application form:1,Qian An,Haituozi,Honggang region smooth horizontal wells construction,construction of 156 horizontal wells in 2012,site construction smoothly,no leakage complex collapse happens;2,well structure was further optimized simplified by a conventional three open optimized for two open and promote the use of scale in the dry Ann Heidimiao development,greatly reducing drilling costs.3,fluid technology to meet the complex area of??three horizontal wells open slimhole construction needs,and multi-stage packer sleeve smoothly into the next to provide technical support.By drilling technology research,to achieve a highly efficient,large-scale development of Jilin Oilfield complex areas difficult mining reserves.