本文選題：微地震　切入點：壓裂　出處：《石油物探》2017年05期 　論文類型：期刊論文

【摘要】：應用水平井H1,H2和H3的微地震、壓裂及地震數據綜合分析了四川盆地W地區(qū)下志留統(tǒng)龍馬溪組頁巖儲層特征。由微地震監(jiān)測數據分析可知,H1井的壓裂主要以激活先期天然裂縫為主,H2井的壓裂以形成人工壓裂裂縫網絡為主,H3井的壓裂則以激活先期天然裂縫和人工壓裂裂縫網絡共同出現(xiàn)為主。分析了有無天然裂縫以及天然裂縫與井筒不同產狀關系情況下不同的壓裂效果,進而評價了3口水平井的壓裂效果,H2井壓裂效果最好,H3井次之,H1井較差。最后,利用神經網絡技術建立了頁巖四大主控因素(總含氣量、孔隙度、脆性指數和裂縫密度)地質模型,獲得頁巖產能數據并將其與具有生產測井數據的H1水平井進行了對比,結合微地震壓裂數據對H2井、H3井產能進行了預測,預測結果為H2井產能是H3井的2倍,實際生產測試為2.3倍,吻合性好,頁巖產能剖面優(yōu)化了水平井部署、井軌跡設計、壓裂方案參數以及更好的完井設計。
[Abstract]:Using microearthquakes of horizontal well H1H2and H3, Fracturing and seismic data analysis of shale reservoir characteristics of Lower Silurian Longmaxi formation in W area, Sichuan Basin. From the analysis of microseismic monitoring data, we can see that the fracturing of H1 well mainly depends on the activation of pre-natural fractures and the fracturing of H _ 2 well. The fracturing of H3 well mainly formed artificial fracturing fracture network mainly by activating preexisting natural fracture and artificial fracturing fracture network. This paper analyzes whether there are natural fractures and the relationship between natural fractures and different occurrence of wellbore. Different fracturing effects, Furthermore, the fracturing effect of 3 horizontal wells is evaluated. The best fracturing effect of H _ 2 well is that of H _ 3 well. Finally, four main controlling factors (total gas content, porosity) of shale are established by using neural network technology. The brittle index and fracture density) geological model are used to obtain shale productivity data and compare them with H1 horizontal wells with production logging data. Combined with micro-seismic fracturing data, the productivity of H _ 2 well and H _ 3 well is predicted. The prediction results show that the productivity of H 2 well is 2 times that of H3 well, and the actual production test is 2.3 times. The shale productivity profile is optimized for horizontal well deployment, well trajectory design, fracturing parameters and better completion design.
【作者單位】： 成都理工大學能源學院;中國石油物探重點實驗室-頁巖氣地球物理研究室;中國石油集團川慶鉆探工程有限公司地球物理勘探公司;中國石油集團川慶鉆探工程有限公司頁巖氣勘探開發(fā)項目經理部;
【基金】：國家科技重大專項“大型油氣田及煤層氣開發(fā)”(2016ZX05023004)資助~~
【分類號】：P631.4;TE37

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