發(fā)布時間：2019-01-26 14:36

【摘要】：綜合利用巖心、測井及地震資料,對T區(qū)塊D-F油田M1油藏進(jìn)行了層序劃分,并建立等時層序地層對比格架,認(rèn)為M1層為1個四級層序,可劃分為M1-Zone、M1SS-1、M1SS-2和M1SS-3共4個五級旋回。在層序劃分的基礎(chǔ)上,根據(jù)巖心中的潮汐韻律層理、交錯層理等沉積構(gòu)造特征及構(gòu)造演化、生物遺跡等證據(jù),對研究區(qū)沉積相類型及特征、沉積相平面及縱向展布特征和沉積相演化模式進(jìn)行研究。結(jié)果表明,地區(qū)整體為海侵體系域,沉積相類型為潮控河口灣沉積和陸棚相沉積,潮控河口灣沉積主要發(fā)育在M1SS-1、M1SS-2和M1SS-3旋回,微相類型主要有潮汐砂壩沉積、潮汐砂坪沉積、混合坪沉積及潮汐水道沉積等。陸棚相沉積發(fā)育在M1-Zone旋回,微相類型包括陸棚砂沉積和陸棚泥沉積。進(jìn)一步分析沉積相展布和沉積環(huán)境特點(diǎn),推斷其沉積模式為河流相和潮控河口灣相—完整的潮控河口灣相—潮控河口灣相和小規(guī)模的陸棚相—發(fā)育含海綠石砂巖和泥巖的陸棚相。
[Abstract]:Based on the core, logging and seismic data, the M 1 reservoir in T block D-F oilfield is sequenced and the isochronous sequence stratigraphic correlation framework is established. It is considered that M1 is a four order sequence, which can be divided into M 1 Zone M 1 SS-1. There are four five-stage cycles in M1SS-2 and M1SS-3. On the basis of sequence division, the types and characteristics of sedimentary facies in the study area are analyzed according to the characteristics of sedimentary structures, such as tidal rhythmic bedding, staggered bedding and other evidences of structural evolution, biological relics, etc. The plane and longitudinal distribution characteristics of sedimentary facies and the evolution model of sedimentary facies were studied. The results show that the whole area is transgressive system tract, the sedimentary facies type is tidal estuary bay deposit and shelf facies deposit, the tidal controlled estuary bay deposit is mainly developed in M1SS-1M1SS-2 and M1SS-3 cycle, and the microfacies type is mainly tidal bar deposit. Tidal sand flat deposits, mixed flat deposits and tidal channel deposits. Shelf facies deposits developed in the M1-Zone cycle, and the microfacies types include shelf sand deposits and shelf mud deposits. Further analyzing the distribution of sedimentary facies and the characteristics of sedimentary environment, It is inferred that the sedimentary models are fluvial facies and tidal controlled estuarine facies, integrated tidal control estuarine facies, tidal controlled estuarine facies and small-scale shelf facies, which contain marine turquoise sandstone and mudstone.
【作者單位】： 中國石油大學(xué)(華東)地球科學(xué)與技術(shù)學(xué)院;中國石油大學(xué)(華東)非常規(guī)油氣與新能源研究院;中國石油勘探開發(fā)研究院;
【基金】：國家自然科學(xué)基金項目“擬海底反射層BSR的地震精細(xì)描述和數(shù)值模擬研究”(編號:41406050) 中國石化科技攻關(guān)項目(編號:P15028) 高校自主創(chuàng)新科研計劃項目(編號:15CX05046A,15CX07004A)
【分類號】：P618.13

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