Nowadays, particle systems have been recognized as one of the most successful methods of irregular object simulation, its advantages are direct, effective and stable.

The ESS adopts multi-means such as physical simulation and half-real object simulation and can be used to simulate in-well environment of various geologic and various depth well.

Self collision detection is the most time consuming process in deformable object simulation. In this paper, a novel algorithm is presented for performing self collision using graphics hardware.