Analysis of Influencing Factors of Pumping Perforation in Horizontal Well

It is very important to determine key treatment data parameters such as pumping rate when a horizontal well is perforated with pumping perforation technique. This paper has analyzed effection of parameters on pumping rate with the new model which considers perforating gun string,pump fluid and method to calculate the impact force of the fluid. These influencing parameters include buoyancy of pumping fluid,coefficient of friction resistance between perforation gun and case,cable head,inclining of gun,pumping fluid density,bridge plug,calculation of impact force and weight of gun. The results imply that pumping change quickly when buoyancy of pumping fluid, coefficient of friction resistance,pumping fluid density,calculation of impact force and weight of gun vary while cable head,inclining of gun and bridge plug do not effect a mostly pumping rate. These factors such as buoyancy of pumping fluid can not be neglected while pumping rate can be determined without considering cable head,inclining of gun and bridge plug.