Features and Forecast of Water Output in Fractured Vuggy Carbonate Condensate Reservoir

doi:10.11885/j.issn.1674-5086.2015.07.24.01

Abstract

Abstract: With increase in production, the number and water production rate of gas wells producing water in the carbonate gascondensate reservoir increases, which reduces the recovery ratio of condensate and natural oils, and impacts the overall effect of condensate gas reservoir development. This article, based on summarizing the features of the carbonate gas-condensate wells in terms of production and water production, makes an energy evaluation of the producing test wells through the flow material balance method, and studies forecast of the water output from producing test wells, with abundant supply of formation energy, according to the changing pattern of production gas-oil ratio and natural gas hydrocarbons. The results of the evaluation prove that the production gas-oil ratio reduces significantly before water output of the carbonatite gas-condensate well; the percentage of light natural gas hydrocarbon components reduces, while that of intermediate and heavy components increases.

Key words: fractured vuggy formation, carbonate, condensate reservoir, gas-oil ratio, hydrocarbons, forecast of water output

CLC Number:

TE348

KANG Bo, ZHANG Liehui, WANG Jian, FAN Kun, WANG Hong. Features and Forecast of Water Output in Fractured Vuggy Carbonate Condensate Reservoir[J]. 西南石油大学学报(自然科学版), 2017, 39(1): 107-113.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2015.07.24.01

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2017/V39/I1/107

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