Water-yielding Laws and Patterns of Volcanic Condensate Gas Reservoir in Kalameili

doi:10.11885/j.issn.1674-5086.2021.04.10.01

Abstract

Abstract: Kelameili volcanic condensate gas reservoir is rich in resources, but due to the variable lithofacies, developed fracture and active edge and bottom water, the gas wells generally produce water in the process of development. Accurate identification of water invasion laws, water production characteristics and water production patterns of gas wells has important reference value for the development of new gas reservoirs and the adjustment of old gas reservoirs. Based on the comprehensive analysis of the geological and development data of typical gas reservoirs in Kelameili, we find that the conventional method suitable for water invasion identification of fractured water-producing gas reservoirs has some limitations, and the combination of numerical simulation technology is more beneficial to recognize the water production laws. The curves of water invasion and water production of gas reservoir show that the main source of water production are edge and bottom water, which seriously affect the gas well productivity. According to the results of numerical simulation, the water production modes of gas wells are divided into five categories. The actual water production curves of 98 gas wells in typical gas reservoirs in the study area are qualitatively divided into five categories by statistical analysis. The results of simulation curves are basically consistent with the actual production curves. The results of water production mode division based on numerical simulation are highly reliable, which can provide reference for the deployment and real-time control of gas wells in volcanic condensate gas reservoirs.

Key words: volcanic, condensate gas reservoir, numerical simulation, water-yielding laws, water-yielding patterns

CLC Number:

TE372

GUO Qiaozhen, LI Daoqing, QIU Peng, YAN Liheng, LUO Jianxin. Water-yielding Laws and Patterns of Volcanic Condensate Gas Reservoir in Kalameili[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(5): 106-114.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2021.04.10.01

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