A Study On Drilling And Completion Technology Of Fishbone Well

Fishbone-shaped branch horizontal well is a kind of multilateral well.lt is a new technology of distribution of eye space science well design and drilling and completion.The main connotation of the technology is based on structural reservoir fine description,combined with horizontal well drilling and completion experiences,by using fishbone type horizontal branches.Fishbone-shaped branch horizontal well can greatly improve the efficiency of oil and gas wells,reduce the costs of oil production of every ton,increase every well production,and achieve more outputs with less wells.With the development of the oil and gas fields,fishbone-shaped branch horizontal well has been paid more and more attention.Because it can develop the residual oil of old oil and gas fields eficiently,and make the development of heavy oil recovery in the economy and technology feasible.This article put forward a new fishbone branch wellbore supporting technology by researching the stability of the fishbone wells,preferring drilling and completion technology.It put a screen pipe into branch borehole.,and an anchor is connected at the top of the inscreen pipe.The anchor can be anchored to prevent the screen pipe to decline for the force of gravity.The screen pipe play a supporting role in branch borehole so as to extend the branch wells life,improve single well production purposes.lt forms the leading domestic technology with independent intellectual property rights of fishbone well completion technology,and got the field application successfully.