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Title: Evaluation of flow characteristics of perforations including nonlinear effects using finite-element method

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6640280

This study presents results of finite element modelling of steady-state flow in perforated natural completions. Use of a carefully chosen mesh based on grid sensitivity analysis permits evaluation of flow with more precision than achieved by previous investigators. Also, for the first time, evaluation of flow characterstics of perforated completion is made taking into account the non-Darcy effect due to converging flow around the perforation. The results indicate: (1) confirmation of Locke's findings qualitatively but 5-10% overprediction by the nomograph (2) importance of angular phasing between adjacent perforations, (3) untenability of generally accepted severe permeability impairment in the compacted zone, and (4) significant reduction in productivity due to non-Darcy effect around the perforation for high-rate wells.

Research Organization:
Flopetrol Johnson/Schlumberger
OSTI ID:
6640280
Report Number(s):
CONF-840495-
Journal Information:
Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE 12781; Conference: Society of Petroleum Engineers California regional meeting, Long Beach, CA, USA, 11 Apr 1984
Country of Publication:
United States
Language:
English