本文選題：湖相白云巖 + 非常規(guī)儲層�。� 參考：《地質論評》2017年01期

【摘要】：湖相白云巖在我國東部泌陽凹陷古近系核桃園組、酒西坳陷白堊統(tǒng)下溝組和西部古—中生界準噶爾盆地二疊系風城組均已形成工業(yè)化油氣開發(fā),預示國內該類儲層良好評價前景。塘沽油田在始新統(tǒng)—漸新統(tǒng)沙河街組三段五亞段湖相泥質白云巖儲層取得油氣勘探新發(fā)現(xiàn),儲層由泥質白云巖與白云質泥巖呈紋層不等厚交互構成,室內分析化驗證實為弱還原半深水湖相沉積,具有裂縫與基質雙重孔隙介質的特點,微介孔率在50%以上,為新型納米級非常規(guī)碳酸鹽儲層。以該類油藏巖芯觀察及試油試采資料為基礎,借助于薄片鑒定、x射線衍射分析、掃描電鏡分析、物性分析、壓汞分析及氮氣低溫吸附測試等技術手段,對該類特殊巖性油藏的含油氣影響因素進行探討。研究結果表明塘沽油田沙河街組三段五亞段泥質白云巖含油性影響因素與成巖礦物組分及發(fā)育,儲集空問及類型,微裂縫發(fā)育,異常超壓空間展布等密切相關,所總結的湖相泥質白云巖儲層含油氣性綜合評價方法對我國該類非常規(guī)油藏開發(fā)具有重要意義。
[Abstract]:The lacustrine dolomite has formed industrialized oil and gas development in the HuiTaoyuan formation of Paleogene, Xiagou formation of Cretaceous in Jiuxi depression and Fengcheng formation of Permian system in Paleozoic and Mesozoic Junggar basin in eastern China. Good evaluation prospect of this kind of reservoirs in China is predicted. Oil and gas exploration was made in the lacustrine shale dolomite reservoir of the third member of the Eocene Oligocene Shahejie formation in Tanggu Oilfield. Laboratory analysis proved that it is a weakly reduced semi-deep water lacustrine deposit with the characteristics of fracture and matrix dual porosity medium. The micromesoporous ratio is over 50%. It is a new type of nanometer unconventional carbonate reservoir. On the basis of core observation and production test data of this kind of reservoir, X ray diffraction analysis, scanning electron microscope analysis, physical property analysis, mercury injection analysis and nitrogen low temperature adsorption test are used in this field by means of thin slice identification, X-ray diffraction analysis, SEM analysis, physical property analysis, mercury injection analysis and nitrogen adsorption test at low temperature. The influencing factors of oil and gas in this kind of special lithologic reservoirs are discussed. The results show that the oil-bearing factors of argillaceous dolomite of the third member of Shahejie formation in Tanggu Oilfield are closely related to the composition and development of diagenetic minerals, the types of reservoir space, the development of micro-fractures, the distribution of abnormal overpressure space, etc. The comprehensive evaluation method of oil and gas content of lacustrine muddy dolomite reservoir is of great significance to the development of this kind of unconventional reservoir in China.
【作者單位】： 中石化華東油氣分公司泰州采油廠;中國石油大港油田分公司第四采油廠地質研究所;
【基金】：中國石油科技重大專項”渤海灣盆地精細勘探技術與灘海地區(qū)大油氣田分布規(guī)律——歧口富油氣凹陷大油氣田勘探及綜合配套技術研究”(編號:2008E-0600)的成果
【分類號】：P618.13

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