SKIN FACTOR COMPUTATION METHOD FOR DIRECTIONAL WELL IN ANISOTROPIC RESERVOIR

doi:10.3863/j.issn.1000-2634.2007.06.022

西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (6): 93-96.DOI: 10.3863/j.issn.1000-2634.2007.06.022

• 石油与天然气工程 • Previous Articles Next Articles

SKIN FACTOR COMPUTATION METHOD FOR DIRECTIONAL WELL IN ANISOTROPIC RESERVOIR

AN Yong-sheng WU Xiao-dong HAN Guo-qing ZHANG Yu-feng

MOE Key Laboratory of Petroleum Engineering in China University of Petroleum，Changping Beijing 102249，China

Received:2006-12-11 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20
Contact: AN Yong-sheng

Abstract

Abstract:

A computation model for calculating the skin factor of directional wells in the anisotropic reservoir is developed based on the theory of coordination conversion in order to study the influence of the law of flow on skin factor. Based on this model, the skin factor caused by well deviation and formation damage varying with deviation angle and azimuth angle is studied. It is found that the well bore track of directional well plays an important role on skin factor in the anisotropic reservoir. The decrease of deviation angle will result in the increase of skin factor caused by well deviation. The decrease of deviation or azimuth angle will result in the increase of skin factor caused by formation damage. This model has wide applicability and may provide some information for studying the productivity of directional well.

Key words: anisotropy, directional well, skin factor, formation damage, well bore track

CLC Number:

TE257

AN Yong-sheng WU Xiao-dong HAN Guo-qing ZHANG Yu-feng. SKIN FACTOR COMPUTATION METHOD FOR DIRECTIONAL WELL IN ANISOTROPIC RESERVOIR[J]. 西南石油大学学报(自然科学版), 2007, 29(6): 93-96.

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SKIN FACTOR COMPUTATION METHOD FOR DIRECTIONAL WELL IN ANISOTROPIC RESERVOIR

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