Feasibility analysis of drilling fluid technology for ultra large displacement wells in Bozhong 29-6 oilfield
Bozhong 29-6 oilfield is rich in oil and gas resources and has high development value.Due to the limitation of the development location area,only super-large displacement drilling can be used for development.However,the main oil storage problems include loose formation,short instability cycle,easy well wall collapse,many faults,small safety density window,high requirements for cleaning the hole,high leakage risk and high friction torque.From the perspective of drilling fluid in this paper,29-6 large displacement well wall stability,hole cleaning,leakage prevention,reservoir protection,combining the bohai sea and the existing drilling fluid technology,give solutions,illustrate the technical feasibility of 29-6 oilfield large displacement drilling fluid,and provide new drilling fluid technology.
万方数据
维普
