Research On Supporting Technology For Quick Drilling Of Directional Cluster Wells In Large Platform Of Pu47 Block

In the past drilling construction,the platform well group generally does not exceed 10 wells,and the 4 large platform wells in the Kuli bubble platform are all above 20,and the well trajectory is difficult to prevent;the platform is arranged on the artificial island and with the Songhua River.Connected,the safety and environmental risks are high,and the drilling fluid is difficult to reuse;the construction period is long,and the average well construction period of the first round well is 10.14 days.If the construction is carried out at this speed,the task will not be completed as required.Therefore,the research on “Superior & Quick Drilling of Directional Cluster Wells in Large Platform of Pu47 Block” was carried out in time to ensure the development of oilfields.In view of the above problems,this paper has carried out research on optimization of production methods to promote “factory” construction and improve production efficiency.In the aspect of excellent speed of drilling technology,the main technology of screw drilling tool+ MWD composite drilling technology was used to study the rapid drilling technology of directional wells.Based on the anticollision technology of the straight well section,the research on the anti-collision technology of the large platform cluster well was carried out.Corresponding safety and environmental protection measures,as well as research on drilling fluid recycling technology,and field tests were carried out,which achieved good test results and laid a good foundation for further promotion of the technology.With the need of oilfield development,in order to reduce land occupation and reduce land cost,the demand for drilling directional well groups is increasing,especially for large platform well groups to control larger areas.This technology provides important basis and technical support for subsequent drilling construction,which can effectively reduce drilling accidents,improve drilling efficiency,help reduce costs and improve the overall development effect of oil fields,so it has a good market prospect.