發(fā)布時(shí)間：2018-01-24 12:45

  本文關(guān)鍵詞： 底流 等深流沉積儲集層 加的斯灣 佛羅里達(dá)海流 牽引構(gòu)造 過程沉積學(xué)　出處：《石油勘探與開發(fā)》2017年02期 　論文類型：期刊論文

【摘要】：主要闡述與等深流沉積以及其他底流沉積相關(guān)的基本原理。深海底流分為溫鹽引起的自轉(zhuǎn)型等深流、風(fēng)力驅(qū)動(dòng)底流、潮汐驅(qū)動(dòng)底流(大多在海底峽谷)、內(nèi)波/內(nèi)潮汐驅(qū)動(dòng)的斜壓流4種基本類型,均常見牽引構(gòu)造。等深流沉積是溫鹽引起的自轉(zhuǎn)型等深流沉積體,粒級可為泥級或細(xì)砂級,含硅質(zhì)或鈣質(zhì)碎屑。在古代等深流與其他等深流的區(qū)分方面,目前尚無沉積學(xué)或地震學(xué)診斷標(biāo)準(zhǔn)。在巖心和露頭上,雙黏土層是識別深海潮汐沉積的可靠指標(biāo)。加的斯灣雖然是泥質(zhì)等深流沉積相模式的代表,但并無真正的等深流沉積,僅受與地中海流出水(MOW)有關(guān)的短暫等深流影響,并受內(nèi)波和內(nèi)潮汐、濁流、海嘯、颶風(fēng)、泥火山、煤成氣滲漏、沉積物供給、孔隙水排出和海底地形等其他復(fù)雜因素的影響。在加的斯灣綜合大洋鉆探(IODP)339項(xiàng)目巖心中沒有發(fā)現(xiàn)能用于解釋沉積過程的原生沉積構(gòu)造,因此等深流沉積相模式應(yīng)予廢棄。4類底流改造砂體均具備成為油氣儲集層的潛力。在佛羅里達(dá)海峽大巴哈馬淺灘(Great Bahama Bank)附近的等深流沉積,因?yàn)槠渲械哪噘|(zhì)成分被強(qiáng)烈的等深流從粒間原生孔隙中簸選出來,最大測量孔隙度為40%,最大滲透率達(dá)9 881×10~(-3)μm~2�，F(xiàn)代等深流的實(shí)證數(shù)據(jù)也顯示其具有發(fā)育蓋層和烴源巖的潛力。因此,未來石油勘探與開發(fā)應(yīng)重點(diǎn)關(guān)注這些經(jīng)常被忽視的深海硅質(zhì)和鈣質(zhì)碎屑等深流沉積儲集層。
[Abstract]:This paper mainly describes the basic principles related to isothermal current deposition and other bottom-flow deposits. Deep seabed flows are divided into self-transformed iso-deep currents caused by temperature and salt, wind driven bottom currents and tidal driven bottom currents (mostly in submarine canyons). There are four basic types of baroclinic flow driven by internal wave / internal tide, all of which are common traction structures. Isochron deposition is a self-transformed isobaric sedimentary body caused by temperature and salt, and the grain level can be mud or fine sand. Siliceous or calcareous clastic. There are no sedimentological or seismological diagnostic criteria for the distinction between the ancient isobaric and other isochymal flows in cores and outcrops. The double clay layer is a reliable index to identify the deep-sea tidal deposits. Although the Cadiz Bay is the representative of the muddy and other deep-current sedimentary facies model, there is no real isoprofundity deposition. It is affected only by the transient isoprofundity associated with the Mediterranean outflow of water (mow), and by internal waves and internal tides, turbidity currents, tsunamis, hurricanes, mud volcanoes, coal-formed gas seeps, sediment supplies. The influence of other complex factors such as pore water discharge and submarine topography. No primary sedimentary structure can be found in the core of the IODPN339 project of integrated ocean drilling in the Gulf of Cadiz to explain the sedimentary process. Therefore, the iso-deep flow sedimentary facies model should be abandoned. 4 class bottom flow remolding sand bodies have the potential to become oil and gas reservoirs. Great Bahama Bank in the Grand Bahamian Shoal of the Florida Strait. The isobaric deposition nearby. Because the muddy components were picked out of the intergranular primary pores by a strong isodyne current, the maximum measured porosity was 40%. The maximum permeability is 9 881 脳 10 ~ (-1) 渭 m ~ (-3) 渭 m ~ (-2). The data of modern isothermal flow also show that it has the potential of developing caprock and source rock. In the future oil exploration and development should focus on these often neglected deep-sea siliceous and calcareous detritus and other deep-current sedimentary reservoirs.
【作者單位】： Department
【分類號】：P618.13;P512.2
【正文快照】： 1研究背景及思路 一直以來,深海底流及其沉積領(lǐng)域(見圖1)對物理海洋學(xué)和過程沉積學(xué)研究具有重大的貢獻(xiàn),過去42年中,Shanmugam對深海沉積各個(gè)方面(包括底流)進(jìn)行了研究探討。與順坡沉積過程不同,等深流平行 于區(qū)域斜坡,砂體展布和儲集層發(fā)育均受其影響。因此,等深流沉積研究

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10 劉寶s，

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