Evaluation of Single-Well Gas Production Capacity of Shuang-6 Gas Storage in Liaohe Oilfield

Abstract

Abstract: Shuang-6 Gas Storage in Liaohe oilfield is the largest gas cap and oil ring gas storage with edge and bottom water in China and there is no mature experience. Gas production capacity of injection-production wells is the key to peak shaving of the gas storage. Taking Well X as an example, a method suitable for Shuang-6 Gas Storage is established to evaluate gas production capacity of injection-production wells. The critical differential pressure of reservoir sand production was determined through indoor sand production experiment of cores. A binomial productivity equation for injection-production wells was established through systematic well testing. The critical differential pressure of reservoir sand production was substituted into the binomial productivity equation for injection-production wells to obtain the gas production capacity that reservoirs can support. The gas production capacity was constrained according to the erosion flow rate in injection-production strings of different sizes. The comprehensive evaluation results show that in Well X the upper limit of gas production rate that the reservoir can support reaches 282×10⁴ m³/d, but constrained by erosion flow rate, the upper limit of gas production rate is determined as 122×10⁴ m³/d.

Key words: Liaohe oilfield, underground gas storage, reservoir, sand production experiment, systematic well testing, erosion flow rate, gas production capacity

CHEN Xianxue, WEN Haibo. Evaluation of Single-Well Gas Production Capacity of Shuang-6 Gas Storage in Liaohe Oilfield[J]. Xinjiang Petroleum Geology, 2017, 38(zk(English) ): 94-97.

References

[1] XIAO Xuelan.Construction technologies for underground gas storage tank farm[J]. Natural Gas Industry, 2012, 32(2): 79-82.
[2] DUAN Hehai, SHI Huandian, LI Xiaoliang et al. Sand production prediction during the development of sandstone oilfields[J]. Petroleum Geology & Experiment, 2004, 26(5): 479-483.
[3] WANG Bin, CHEN Chao, LI Daoqing et al. A method for full-cycle alternative injection-production performance evaluation of Hutubi underground gas storage[J]. Xinjiang Petroleum Geology, 2016, 37(6): 709-714.
[4] LI Jianzhong, LI Qi.Related technologies in the construction of underground gas storage upon oil and gas reservoirs[J]. Natural Gas Industry, 2013, 33(10): 100-103.
[5] YANG Jisheng, LIU Jianyi.Practical calculation of gas production[M]. Beijing: Petroleum Industry Press, 1994.
[6] YANG Shuhe, HE Shumei, YANG Bo et al. The operation practice and evaluation for Dazhangtuo underground gas storage[J]. Natural Gas Geoscience, 2003, 14(5): 425-428.
[7] ZHAO Shudong, WANG Jieming.Preferring technology of natural gas underground has storage[M]. Beijing: Petroleum Industry Press, 2000: 66-82.
[8] WANG Jieming, JIANG Fengguang.A prediction model on dynamic injection and production for underground gas storages[J]. Natural Gas Industry, 2009, 29(2): 108-110.
[9] Flanigano, ZHANG Shouliang, CHEN Jianjun et al. Underground gas storage facilities design and implementation[M]. Beijing: Petroleum Industry Press, 2004.
[10] TANG Hongming, MENG Yingfeng, HE Shiming et al. Discussion on the mechanisms of sand production and sand control in unconsolidated sand gas reservoirs in east Chaidamu basin[J]. Natural Gas Industry, 2002, 22(1): 52-54.
[11] Vazquze M, Beggs H D.Correlations for fluid physical property prediction[J]. Journal of Petroleum Technology, 1980, 3(1): 968-970.
[12] Van horn H G, Wienecke D R. A method for optimizing the design of gas storage system[J]. SPE 2966, 1970.
[13] SUN Hedong, ZHU Zhongqian, SHI Ying et al. A note on the Blasingame type curve plotting of production decline analysis[J]. Natural Gas Industry, 2015, 35(10): 71-77.
[14] SUN Hedong.Advanced production decline analysis and application[M]. Beijing: Petroleum Industry Press, 2013: 20-25
[15] WANG Bin, CHEN Chao, LI Daoqing et al. Evaluation method of injection and production gas capacity of H type gas storage of Xinjiang[J]. Special Oil & Gas Reservoirs, 2015, 22(5): 78-81.