Characteristics and Development Strategies of Mound-Shoal Reservoirs With Bottom Water

doi:10.7657/XJPG20210113

Abstract

Abstract:

Carbonate gas reservoirs with bottom water are characterized by complex and diverse lithologies. Fractures are developed in these reservoirs, resulting in water production from gas wells and poor reservoir development effects. Taking the BTU carbonate gas field in the Amu Darya basin of Turkmenistan as an example, by analyzing the geology of the study area, the characteristics of the fractures were clarified, and the favorable factors for the high yield of gas wells were revealed. Based on the results of the water energy evaluation and the physical features of the reservoir, the water-invasion mound-shoal reservoirs were subdivided into different reservoir types, and the risks of water invasion were evaluated for different types of gas reservoirs. The water production performance and the production decline law were summarized through analyzing the production performances of different types of gas wells. Based on the water control and gas production experience at home and abroad, efficient development strategies for the reservoirs with different water invasion characteristics were proposed.

Key words: Turkmenistan, carbonate rock, mound-shoal reservoir, reservoir with bottom water, fracture, productivity decline law, water invasion, development strategy

CLC Number:

TE371

CHEN Pengyu, CHENG Muwei, CHEN Huailong, WEN Guangyao, ZHANG Liangjie, HE Yingxu, LI Yunzhu. Characteristics and Development Strategies of Mound-Shoal Reservoirs With Bottom Water[J]. Xinjiang Petroleum Geology, 2021, 42(1): 94-99.

Figures/Tables 7

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