Abstract: Shaximiao gas pool of Xinchang Formation is a gas pool mainly developed in Xinchang gas field.It is the major method that applies directional cluster wells to develop the gas pool.However,there have been seven sticking accidents happened during the mid stage of development,which has great effect on the exploration and development of the region.Based on the exact survey and study of the sticking problems of the region,the property of sticking is identified as differential pressure sticking.Then the causes of differential pressure sticking are analyzed by using relevant numerical modeling techniques.Finally,the main causes of sticking are identified,that is,the big operation pressure differential,the unstable drilling fluid properties,the poor borehole cleaning,poor trajectory control and construction operation.Some techniques are brought forward to prevent the differential pressure sticking in the construction field,such as rational design of the density of drilling fluid,optimal control of bottom-hole pressure differential,optimization of the types and performance of drilling fluid,strict control of the time of drilling tool stopped in wells,the monitoring and recording the friction and torque during drilling,and optimization of downhole drilling assemblage.Through field application,a set of non-wall-stick technologies suitable for safe and fast drilling of the mid-deep directional cluster wells in Xinchang region are developed.Good results are obtained from the field application,which accelerates the exploration and development of the region.What’s more,it may be a good reference to preventing sticking accidents in western Sichuan and other old oil and gas fields.