本文選題：湖相白云巖 + 非常規(guī)儲(chǔ)層��； 參考：《地質(zhì)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(zhǔn)噶爾盆地二疊系風(fēng)城組均已形成工業(yè)化油氣開發(fā),預(yù)示國內(nèi)該類儲(chǔ)層良好評價(jià)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(zhì)白云巖儲(chǔ)層取得油氣勘探新發(fā)現(xiàn),儲(chǔ)層由泥質(zhì)白云巖與白云質(zhì)泥巖呈紋層不等厚交互構(gòu)成,室內(nèi)分析化驗(yàn)證實(shí)為弱還原半深水湖相沉積,具有裂縫與基質(zhì)雙重孔隙介質(zhì)的特點(diǎn),微介孔率在50%以上,為新型納米級非常規(guī)碳酸鹽儲(chǔ)層。以該類油藏巖芯觀察及試油試采資料為基礎(chǔ),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?dú)獾蜏匚綔y試等技術(shù)手段,對該類特殊巖性油藏的含油氣影響因素進(jìn)行探討。研究結(jié)果表明塘沽油田沙河街組三段五亞段泥質(zhì)白云巖含油性影響因素與成巖礦物組分及發(fā)育,儲(chǔ)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(guān),所總結(jié)的湖相泥質(zhì)白云巖儲(chǔ)層含油氣性綜合評價(jià)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(zhì)研究所;
【基金】：中國石油科技重大專項(xiàng)”渤海灣盆地精細(xì)勘探技術(shù)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(shù)研究”(編號:2008E-0600)的成果
【分類號】：P618.13

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