海上干扰试井数值模拟设计及方案优化

doi:10.3969/j.issn.1673-8926.2015.02.015

Lithologic Reservoirs ›› 2015, Vol. 27 ›› Issue (2): 98-102.doi: 10.3969/j.issn.1673-8926.2015.02.015

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Interference well test with numerical simulation design and program optimization at sea

YAN Zhenghe¹， GUO Kangliang²， L I Yanping¹， CHENG Chuchuan¹， Y ANG Yong¹， L IU Yuanzhi¹

1. Department of Production ， Shenzhen Branch ， CNOOC ， Shenzhen 518067 ， Guangdong ， China ；2. School of Geosciences ， Yangtze University ， Wuhan 430100 ， China

Online:2015-03-03 Published:2015-03-03
Supported by:
国家重大科技专项“高含硫气藏安全高效开发技术”（编号： 2011ZX05017-001 ）资助

Abstract

Abstract:

The reservoir of an oilfield located in the eastern South China Sea is characterized by good reservoir permeability, different water content in each well and serious interference between production wells. Aiming at this phenomenon, based on seepage flow mechanics and existing geological data, this paper carried out interference well test numerical simulation and designed construction program to ascertain interwell connectivity and find out interference pressure. Compared with conventional methods, interference well test numerical simulation can realize the combination of fine grid blocks in near bore zones and coarse grid blocks in far bore zones, and then achieved the purpose of describing geological characteristics with least grid blocks and simulated oil and water seepage of multiphase flow at the same time, which has favorable guidance for practical construction tests. The actual interference pressure date collected from optimized interference well test construction matched with the initial designing project, which validates the correctness of this design scheme.

Key words: nonhydrocarbon fluid, cause analysis, distribution, controlling factors, Naiman Sag

YAN Zhenghe， GUO Kangliang， LI Yanping， CHENG Chuchuan， YANG Yong， LIU Yuanzhi. Interference well test with numerical simulation design and program optimization at sea[J].Lithologic Reservoirs, 2015, 27(2): 98-102.

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