| 1. | Sedimentary characteristics of sublacustrine fan of the interval 6 of yanchang formation of upper triassic in southwestern ordos basin
鄂尔多斯盆地西南部上三叠统长6油层组湖底扇特征 |
| 2. | The sublacustrine fan , as an important deposit in actic region of northern chexi sub - sag , is characterized with both source and reservoir in it and favorable hydrocarbon accumulation conditions
摘要湖底扇是车西洼陷北部陡坡带的一种重要的沉积类型，具有自生、自储的特点，成藏条件优越。 |
| 3. | The segment , es32 , is a set of sedimentation deposited by gravity flow of the near - shore steep slope sublacustrine fen , is formed out of granule roundstone and also features coarse lithology and crude grading
Es _ 3 ~ 2段储层属近岸陡坡湖底扇重力流沉积，储层岩性以细砾岩为主，岩性粗、分选性差。 |
| 4. | We suggest that the favorable reservoir facies within ganchaigou formation in west qaidam basin are delta front facies , fan - delta front facies , dam - and - beach facies of the littoral and shallow lake , lacustrine floor fan facies and carbonates facies
强调了三角洲相前缘、扇三角洲相前缘、滨浅湖滩坝、湖底扇以及碳酸盐岩沉积是西部地区干柴沟组有利的储集岩相带。 |
| 5. | The good reservoir facies are braided stream and braided delta in alaer area , fan - delta in arhati area and lake - floor fan in shizigou - ganchaigou area . all of these areas are the main targets for oil exploration , it has discovered that there is an important unconformity between upper youshashan and lower youshashan formation of tertiary , on which there are a large amount of erosion and long time of depositional hiatues
在上述研究的基础上，对区内油气勘探的有利区带进行了预测，指出阿拉尔北东辫状河三角洲相带、阿哈提南东扇三角洲相带和狮子沟一干柴沟湖底扇相带为区内有利的储集相带，是今后勘探的主要目标。 |
| 6. | Member - one of nenjiang group is divided into sa 0 sand - group . the same points of medimentary microfacies types and distribution by developed in many sand groups lies in that they dominate with river delta and shore - shallow lake in west and dominate with deep lake - semi - deep lake and contain gravity flow . the change of sediment scope of each sand - group makes deep lake - semi - deep lake and sublacustrine fan sediment of ga 0 and pu 2 sand - groups not being developed during the lest sediment area , but the deep lake - semi - deep lake and sublacustrine fan sediment during the largest sediment scope of sa 0 is well developed
多数砂组发育的沉积微相类型和分布的共同之处在于，西侧多以河流三角洲和滨浅湖沉积为主，东部以深湖?半深湖为主其中夹有重力流，但由于各砂组沉积范围的变化，造成沉积区最小时期的高0 、葡2砂组深湖?半深湖及湖底扇沉积不发育，而沉积范围最大时期的萨0砂组深湖?半深湖及湖底扇沉积极其发育。 |
| 7. | Besides , the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration . the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings . the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north , the coarse lithology of fan - delta prograded from north to south in fall - hemicycles , and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south , braided stream facies prograded from sorth to north in the fall - hemicycles , but the lacustrine facies and salt lake facies developed in the middle part of the area
详细的沉积相研究发现，红狮地区第三系发育有冲积扇、水下冲积扇、河流、三角洲、扇三角洲、湖泊和湖底扇7种主要沉积相类型，并对作为区内主要勘探目的层系的下干柴沟组和上干柴沟组进行了以超层序为单位的沉积相平面编图，以较高的时间分辨率揭示了区内沉积相带的平面展布及其在不同构造背景中的分布规律，比如在北部的凹陷陡坡背景下，上升半旋回低水位期通常发育有水下扇、湖底扇等陡岸近源特征的沉积体系，下降半旋回高水位期，扇三角洲相粗碎屑岩由北向南进积;在南部的凹陷缓坡背景下，上升半旋回主要发育辫状河流相，下降半旋回辫状河三角洲相由南向北进积;而中部红柳泉一狮子沟一带则为湖泊相沉积和盐类沉积。 |
| 8. | The most favorable reservoirs of study formatioms in study area are delta river mouth bar sand body and sublacustrine fan sand body . the sublacustrine fan sand body region developed in each sand group and the river mouth bar sand body region developed in gao 5 sand - group are the most favorable regions of developing lithologic traps
研究区研究层段的最有利储层是三角洲河口坝砂体和湖底扇砂体，各砂组发育的湖底扇砂体区和高5砂组发育的河口坝砂体发育区是形成岩性圈闭最有利的场所。 |
| 9. | By viewing the cores in cored wells of the research district , combining with the depositional characters of every sand formation and its relevant marks of log facies , the differentiation and sorting of sedimentary microfacies of sublacustrine fan are described systematically ; the planar and vertical changing rules of sedimentary microfacies are studied on this base ; finally the three - dimensional mode of the sublacustrine fan is established , which provides a certain reference action for similar research work
摘要通过对研究区内取芯井的岩芯观察，结合各砂层组的沉积特征及其相应的测井相标志，系统的描述了湖底扇沉积微相的划分及分类，在此基础上研究沉积微相平面及垂向上变化规律，最终建立了湖底扇的立体模型，为以后的类似的研究工作提供了一定的参考作用。 |
| 10. | The sedimentary facies of the jurassic penglaizhen formation in the studied area can be described as follows : from the edge of the basin , the source of deposition , to the center of the sedimentation are alluvial fan facies fluvial facies fan delta facies delta facies lake facies and lake floor fan facies in turn
研究区侏罗世蓬莱镇期沉积盆地的沉积相类型分布，从盆缘近物源区至盆地沉降-沉积中心区依次为冲积扇、河流相、扇三角洲相、河控三角洲相、湖泊相和湖底扇相等沉积体系。 |
