压裂参数对页岩气井产量递减典型曲线影响分析
Influence of Fracturing Parameters on Typical Shale Gas Well Production Decline Curve
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- 引用格式:
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白玉湖,杨皓,陈桂华,冯汝勇,徐兵祥.压裂参数对页岩气井产量递减典型曲线影响分析[J].天然气与石油,2014,32(4):0.doi:
Bai Yuhu, Yang Hao, Chen Guihua, Feng Ruyong, Xu Bingxiang.Influence of Fracturing Parameters on Typical Shale Gas Well Production Decline Curve[J].Natural Gas and Oil,2014,32(4):0.doi:
- DOI:
- 作者:
- 白玉湖1 杨 皓2 陈桂华1 冯汝勇1 徐兵祥1
Bai Yuhu, Yang Hao, Chen Guihua, Feng Ruyong, Xu Bingxiang
- 作者单位:
- 1.中海油研究总院，2.新兴重工有限公司
1.China National Offshore Oil Corporation Research Institute; 2.Xinxing Heavy Industries Corporation Limited
- 关键词:
- 页岩气；多级压裂；压裂参数；产量；典型曲线
Shale gas; Multistage fracturing; Fracturing parameter; Production decline; Typical curve
- 摘要:
- 为研究页岩气井产量与完井压裂参数之间的关系，通过对美国地质条件相似的某区块27口页岩气井产量递减典型曲线预测，获取典型曲线参数。分析了水平段长度、压裂级数、支撑剂用量、压裂液用量、总射孔数、总簇数等完井压裂参数对典型曲线中初始产气量、递减指数、递减率等的影响。结果表明：初始产气量随完井压裂参数增加而增加，但增加幅度逐渐变小；递减指数随完井压裂参数增加而增大；递减率则随完井压裂参数的增加先快速降低后缓慢降低。研究结果对国内页岩气的压裂有一定参考作用。
To evaluate the relationship between shale gas well production well completion fracturing parameters, obtained are typical curve parameters through prediction of typical curve of production decline of 27 shale gas wells in certain shale gas block similar to American geological conditions. Conducted is analysis on effects of such well completion fracturing parameters as horizontal section length, fracture stages, proppant consumption, fracturing fluid consumption, total shots and total clusters on such several important parameters as initial production, decline index and decline rate. Analysis results show that the initial gas production and decline index increase with increase of well completion fracturing parameters and the increase amplitude will become small gradually, and the decline rate decreases rapidly at first and slowly later with increase of fracturing parameters. The results can provide valuable reference for future shale gas development in China.
