西南石油大学学报(自然科学版)

Previous Articles     Next Articles

Simulation Based on the CFD of Self-propulsion Nozzle’s Flow Field

Hu Kun1, Peng Xu2, Li Jie3, Fu Biwei1, Ai Zhijiu1   

  1. 1. School of Mechanical Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. Henan Petroleum Exploration Bureau,SINOPEC,Nanyang,Henan 473000,China
    3. Well-tech R & D Institute,China Oilfield Services Limited,Sanhe,Hebei 065200,China
  • Online:2013-12-01 Published:2013-12-01

Abstract:

The self-propulsion jet flow is the core component in radial hydraulic deep penetrating production process for low
permeability oil well. Based on the computational fluid dynamics(CFD)approach,we studied the internal and external flow
field of the nozzle,and calculated the propulsive force of the nozzle. The results show:(1)the flow field from the nozzle will
generate the local high pressure area in bottom hole,which help to break rock.(2)Water jet low from the nozzle will form the
symmetrical wall shear force to help to improve the wall rock break at bottom hole.(3)Jet nozzle flow passage of the maximum
speed tends to be concentrated on one side wall surface,which may make the nozzle structure wear,so the optimization of the
nozzle structure will helps to improve the jet nozzle jet flow field,and its life.(4)Calculated nozzle propulsion force by using
CFD approach is consistent the real measured results,so it is feasible to use CFD to prediction nozzle propulsion.

Key words: flow field simulation, computational fluid dynamics(CFD), self-propulsion jet nozzle, multi-jet flows, simulation