关键词: 射孔完井, 有限元法, 模型, 网格划分, 孔眼

Abstract:

The basic methods of 2D, 3D finite- element thermal models created and meshed have been introduced in the paper. Simulating fluid-flow field with thermal field, the materials of well hole and perforated tunnel are simulated by the same conductivity material, the thermal conductivity is infinitely great with respect to the conductivity of formation, it can simulate the fluid-flow field of the whole perforated completion. The 2D and 3D models can be used to study the velocity in the perforated tunnel, the fluid - flow velocity of out boundary of crushed zone, fluid-flow pressure field, the flow rate of whole size well and the production rate, with or without drilling dam age and crushed zone. A general program of the meshed models has been written with APDL computer language. it provides practical FEM meshed models for the optimal design and production rate prediction of perforated completion, and also provides a brief method for the research area.

Key words: perforated completion, finite element method, models, meshed