Underbalance Criteria for Minimum Perforation Damage

Autor:	L.A. Behrmann
Rok vydání:	1996
Předmět:	Viscosity Permeability (earth sciences) Petroleum engineering Drag Mechanical Engineering Compressibility Energy Engineering and Power Technology Porosity Calculation methods Geology
Zdroj:	SPE Drilling & Completion. 11:173-177
ISSN:	1930-0204 1064-6671
DOI:	10.2118/30081-pa
Popis:	Summary A simple viscous drag force equation has been applied to single-shot laboratory perforation/flow experimental data to obtain perforation damage skin vs. underbalance. The equations are applicable for oil wells in consolidated, nonsanding formations and are a function of reservoir porosity, permeability, and diameter of the perforation tunnel in the rock. The equations are independent of oil compressibility and viscosity. The dependency on perforation diameter suggests that larger charges are more damaging than small charges and that big hole charges are more damaging than equal-size deep penetrating charges. The equations can be used to calculate an optimum underbalance or a single-shot perforation skin for less than optimum underbalance. The single-shot skin can be used in well-flow analysis simulators to obtain a well perforation skin.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4c842106865407a15791dba6f64fd3e8 https://doi.org/10.2118/30081-pa Zobrazit plný text záznamu