本文選題：砂礫巖 + 儲層質(zhì)量��； 參考：《特種油氣藏》2017年04期

【摘要】：昆北油田切12區(qū)塊第三系下干柴溝組沉積時期砂礫巖儲層厚度大,內(nèi)部砂體多期疊置,非均質(zhì)性極強。對影響儲層質(zhì)量的主控因素認識不清導致了油藏動用狀況和生產(chǎn)效果不佳�；谌⌒木畮r心觀察,并結合薄片鑒定、壓汞分析、核磁共振及物性等資料,從巖石學、物性及孔隙結構方面分析厚層塊狀砂礫巖的儲層特征及儲層質(zhì)量主控因素,建立了切12區(qū)塊砂礫巖"甜點"儲層識別標準。研究表明:切12區(qū)塊第三系下干柴溝組儲層質(zhì)量受巖石粒度分選、泥質(zhì)體積分數(shù)、成巖作用等主控因素影響。根據(jù)巖性、物性指數(shù)、排驅(qū)壓力、日產(chǎn)液能力等參數(shù)建立"甜點"儲層識別標準,并提出尋找油井"甜點"儲層段補孔、注水井"甜點"儲層水竄段封堵調(diào)剖等油藏開發(fā)調(diào)整措施,為厚層塊狀砂礫巖油藏提高采收率提供有力的技術支持。該研究方法對其他類型的儲層質(zhì)量主控因素研究有一定適用性。
[Abstract]:In the Tertiary Lower Ganchaigou formation of Lower Ganchaigou formation in Block 12 of Kunbei Oilfield, the thickness of sandy gravel reservoir is large, the internal sand body is superimposed in many stages, and the heterogeneity is very strong. Unclear understanding of the main control factors affecting reservoir quality leads to poor reservoir production conditions and production results. Based on the core observation of coring wells, combined with the data of sheet identification, mercury injection analysis, nuclear magnetic resonance (NMR) and physical properties, the reservoir characteristics and reservoir quality control factors of thick layer massive conglomerate are analyzed from the aspects of petrology, physical properties and pore structure. In this paper, the criteria for identifying sand and gravel reservoir in block 12 are established. The results show that the reservoir quality of Lower Ganchaigou formation of Tertiary system in Block 12 is affected by the main controlling factors such as rock granularity separation, mudstone volume fraction, diagenesis and so on. According to the parameters such as lithology, physical property index, displacement pressure, daily liquid production capacity and so on, the identification standard of "dessert" reservoir is established, and the finding of filling hole in oil well "dessert" reservoir is put forward. The measures of reservoir development adjustment such as plugging and profile control in water channeling section of water injection well provide strong technical support for enhancing recovery factor of thick layer massive sandy gravel reservoir. The method is applicable to other types of reservoir quality control factors.
【作者單位】： 中國石油勘探開發(fā)研究院;中國石油青海油田分公司;中國石油大學(北京);
【基金】：中國石油科技重大專項“低/超低滲透油田有效開發(fā)關鍵技術研究”(2016B-1201)
【分類號】：P618.13;TE311

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