DESIGN OF MODEL SPDS SAND CONTROL RELEASING TOOL FOR USING IN HORIZONTAL WELL

It is very difficult to remove sand from horizontal wells, therefore, sand control at early production stage is extremely important. This paper introduced one of the key tools in sand control strings, model SPDS sand control releasing tool. This paper introduced the structural design and working mechanism of SPDS-120 and SPDS-114 releasing tools,especially the structure, characteristics and relevant design calculation of SPDS-114. Both SPDS releasing tools are controlled by shear pins and locking segments, adopt the form of hydraulic releasing, and have the characteristics of simple structure, convenient operation,stable controlling pressure differential and so on. The design of the tool can provide references for the optimizing design of relevant tools for using in other horizontal wells.