A Production Formula for Fractured Vertical Wells

doi:10.7657/XJPG20230606

Abstract

Abstract:

Fluid flow in the reservoir is no longer merely linear or radial after fracturing, instead, the flow field becomes complex and cannot be directly solved using analytical methods. In order to derive a production formula for fractured vertical wells, the complex flow field in the reservoir was decomposed into three simple flow patterns: outer radial flow, middle linear flow, and fracture linear flow. Each of these flow patterns was separately solved, and by applying the principles of fluid-electric similarity and equivalent flow resistance method, a production formula for fractured vertical wells was analytically derived. This formula can be used to calculate and predict the production of fractured vertical wells, and also to determine the fracture length and fracturing effect.

Key words: fracturing, oil well, production, skin factor, linear flow, radial flow, fluid-electric similarity principle, equivalent flow resistance method

CLC Number:

TE311

LI Chuanliang, PANG Yanming, ZHOU Yongbing, ZHAN Jianfei, ZANG Wei, LU Huimin, ZHU Suyang. A Production Formula for Fractured Vertical Wells[J]. Xinjiang Petroleum Geology, 2023, 44(6): 683-689.

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