本文關(guān)鍵詞：碎屑巖儲(chǔ)集層中綠泥石包膜的研究現(xiàn)狀　出處：《古地理學(xué)報(bào)》2017年01期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 綠泥石包膜 石英次生加大 火山巖巖屑 成巖作用

【摘要】：綠泥石包膜在國(guó)內(nèi)外碎屑巖儲(chǔ)集層中常有發(fā)現(xiàn),其對(duì)石英次生加大的抑制及對(duì)儲(chǔ)集層物性的影響一直是國(guó)內(nèi)外學(xué)者的研究熱點(diǎn)。本文回顧了綠泥石包膜的研究歷史,總結(jié)了其研究成果,包括微觀賦存狀態(tài)、形成時(shí)間和機(jī)理、控制因素、對(duì)石英次生加大的抑制和對(duì)儲(chǔ)集層物性的影響等。結(jié)果表明:(1)儲(chǔ)集層中綠泥石包膜主要偏富鐵,具連續(xù)生長(zhǎng)的雙層結(jié)構(gòu),符合"Ostwald"熟化過(guò)程,始于早期富鐵黏土包膜,早成巖期轉(zhuǎn)化為平行或斜切顆粒表面的內(nèi)層包膜,逐漸向外生長(zhǎng)為垂直顆粒表面的孔隙襯里綠泥石,并可在埋藏成巖過(guò)程持續(xù)生長(zhǎng);(2)富含鐵鎂礦物的火山物質(zhì)(火山巖巖屑和火山灰)及暗色礦物(黑云母和角閃石等)是形成綠泥石包膜的主要物質(zhì)來(lái)源,并主要富集在三角洲入海(湖)的高能水動(dòng)力相帶,如三角洲前緣水下分流河道及河口壩等沉積微相中,烴類(lèi)充注影響孔隙襯里綠泥石的生長(zhǎng)形態(tài);(3)中低溫環(huán)境綠泥石包膜明顯抑制石英次生加大的生長(zhǎng),高溫環(huán)境抑制效果減弱;(4)綠泥石包膜的發(fā)育有利于粒間孔隙的保護(hù),但易降低孔隙喉道的連通性。最后指出了綠泥石包膜在目前研究中存在的問(wèn)題和今后的研究趨勢(shì)。
[Abstract]:Chlorite coating is often found in clastic rock reservoirs at home and abroad. The inhibition of quartz secondary growth and the effect on reservoir physical properties have been the hot research topics of domestic and foreign scholars. This paper reviews the research history of chlorite coating and summarizes its research results including microscopic occurrence state. The formation time and mechanism, the controlling factors, the inhibition of quartz secondary growth and the effect on reservoir physical properties, etc. The results show that the chlorite coating in the reservoir is mainly rich in iron and has a continuous growth bilayer structure. The "Ostwald" maturation process begins with the early iron rich clay coating, and during the early diagenesis stage it is transformed into an inner coating on the surface of parallel or oblique particles. It gradually grows out as pore lining chlorite on vertical grain surface and can continue to grow during buried diagenesis. (2) volcanic materials (volcanic rocks and ash) and dark minerals (biotite and hornblende) rich in iron and magnesium minerals are the main material sources for forming chlorite coating. And it is mainly concentrated in the high-energy hydrodynamic facies belt of delta entering sea (lake), such as delta front underwater distributary channel and estuary dam. Hydrocarbon filling affects the growth pattern of pore lining chlorite. (3) chlorite coating obviously inhibited the secondary growth of quartz in the medium and low temperature environment, but the inhibition effect in the high temperature environment was weakened. 4) the development of chlorite coating is beneficial to the protection of intergranular pores, but it is easy to reduce the connectivity of pore throat. Finally, the existing problems and future research trends of chlorite coating are pointed out.
【作者單位】： 中國(guó)石油大學(xué)(華東)地球科學(xué)與技術(shù)學(xué)院;中國(guó)石油大學(xué)(華東)山東省油藏地質(zhì)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家油氣重大專(zhuān)項(xiàng)子課題(編號(hào):2011ZX05006-004) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專(zhuān)項(xiàng)資金項(xiàng)目(編號(hào):16CX06037A)聯(lián)合資助~~
【分類(lèi)號(hào)】：P618.13;P578.962
【正文快照】： 1引言隨著中深層碎屑巖儲(chǔ)集層異常高孔帶研究的不斷深入,學(xué)者們對(duì)其成巖作用特征、異常高孔隙度的成因及分布開(kāi)展了大量研究(遠(yuǎn)光輝等,2015)。其中,Enrenberg(1993)、Bloch等(2002)、Anjos等(2003)均發(fā)現(xiàn),中深層碎屑巖儲(chǔ)集層異常高孔帶的存在常與綠泥石包膜的發(fā)育有關(guān),其對(duì)石

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