Numerical Simulation of Sour Gas Fractured Wells with the Effects of Sulfur Deposition Considered
With the decreasing of temperature and pressure, precipitated elemental sulfur may deposit and block pore during sour gas reservoir development. Based on carbonate core damage experiences, combined with solubility theory of elemental sulfur, gas percolation numerical models are established when the effects of sulfur deposition are considered. The effect of deposited sulfur on pressure decline and the necessity of acid fracturing treatment to sour wells development are analyzed. The results show that the more volume of sulfur deposition is, the quicker the pressure decreases. Acid fracturing can not only increase flow capacity, but also slow pressure fall and delay sulfur precipitation.
high sulfur acid fracturing sulfur deposition numerical simulation pressure drop curve
HU Jinghong HE Shunli ZHAO Jinzhou
China University of Geosciences, Beijing, 100083 CMOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing, 102249 Key Laboratory of Oil and Gas Reservoir Geology and Exploitations, Southwest Petroleum University, C
国际会议
成都
英文
378-381
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）