定邊地區(qū)侏羅系延安組延9儲層成巖作用特征
發(fā)布時間:2019-02-17 18:43
【摘要】:通過巖石薄片、鑄體薄片、物性、高壓壓汞、陰極發(fā)光、掃描電鏡及X射線衍射等測試手段,對定邊地區(qū)延9砂巖儲層成巖作用進行研究。結(jié)果表明,研究區(qū)延9儲層經(jīng)歷了壓實作用、膠結(jié)作用及溶蝕作用,壓實作用、伊利石膠結(jié)及碳酸鹽膠結(jié)破壞原生孔隙,使儲層物性變差;高嶺石對儲層物性的影響具有雙重性;溶蝕作用產(chǎn)生較多的次生孔隙,有利于改善儲層物性。依據(jù)粘土礦物組合及自生礦物分布,認為研究區(qū)延9砂巖成巖演化階段進入了中成巖階段A期。研究為儲層綜合評價及有利區(qū)優(yōu)選提供了地質(zhì)依據(jù)。
[Abstract]:The diagenesis of 9 sandstone reservoirs in Dingbian area was studied by means of rock sheet, cast sheet, physical property, high pressure mercury pressure, cathodoluminescence, scanning electron microscope and X ray diffraction. The results show that the reservoir of Yan-9 has experienced compaction, cementation and dissolution, compaction, Illite cementation and carbonate cementation, which destroy the primary pores and make the reservoir physical properties worse. The effect of kaolinite on reservoir physical properties is dualistic, and dissolution produces more secondary pores, which is helpful to improve reservoir physical properties. According to the clay mineral assemblage and the distribution of authigenic minerals, it is considered that the diagenetic evolution stage of 9 sandstone in the study area has entered the middle diagenetic stage A. The study provides geological basis for reservoir comprehensive evaluation and favorable area selection.
【作者單位】: 克拉瑪依職業(yè)技術(shù)學(xué)院石油工程系;中國石油大學(xué)(北京)克拉瑪依校區(qū)石油學(xué)院;西安石油大學(xué)地球科學(xué)與工程學(xué)院;中國石油吐哈油田分公司勘探開發(fā)研究院;中國石油化工股份有限公司石油勘探開發(fā)研究院無錫石油地質(zhì)研究所;延長油田股份有限公司;
【基金】:國家重大專項(2011ZX05005) 新疆維吾爾自治區(qū)自然科學(xué)基金(2017D01B56) 克拉瑪依市科技計劃項目(SK201532)
【分類號】:P618.13
[Abstract]:The diagenesis of 9 sandstone reservoirs in Dingbian area was studied by means of rock sheet, cast sheet, physical property, high pressure mercury pressure, cathodoluminescence, scanning electron microscope and X ray diffraction. The results show that the reservoir of Yan-9 has experienced compaction, cementation and dissolution, compaction, Illite cementation and carbonate cementation, which destroy the primary pores and make the reservoir physical properties worse. The effect of kaolinite on reservoir physical properties is dualistic, and dissolution produces more secondary pores, which is helpful to improve reservoir physical properties. According to the clay mineral assemblage and the distribution of authigenic minerals, it is considered that the diagenetic evolution stage of 9 sandstone in the study area has entered the middle diagenetic stage A. The study provides geological basis for reservoir comprehensive evaluation and favorable area selection.
【作者單位】: 克拉瑪依職業(yè)技術(shù)學(xué)院石油工程系;中國石油大學(xué)(北京)克拉瑪依校區(qū)石油學(xué)院;西安石油大學(xué)地球科學(xué)與工程學(xué)院;中國石油吐哈油田分公司勘探開發(fā)研究院;中國石油化工股份有限公司石油勘探開發(fā)研究院無錫石油地質(zhì)研究所;延長油田股份有限公司;
【基金】:國家重大專項(2011ZX05005) 新疆維吾爾自治區(qū)自然科學(xué)基金(2017D01B56) 克拉瑪依市科技計劃項目(SK201532)
【分類號】:P618.13
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