本文選題：歧口凹陷 + 板橋斜坡�。� 參考：《特種油氣藏》2017年01期

【摘要】：通過測錄井、巖心、粒度分析等資料,綜合研究了歧口凹陷板橋斜坡濱Ⅰ油組主要沉積相類型、富集高產(chǎn)相帶及其展布規(guī)律。研究表明,歧口凹陷板橋斜坡濱Ⅰ油組以發(fā)育扇三角洲前緣為主,局部見遠岸水下扇重力流沉積,可識別出水下分支河道(包括主水下分支河道、水下分支河道2種二級微相)、河口壩、席狀砂、前緣遠端滑塌濁積體等沉積微相。統(tǒng)計分析表明,不同沉積微相儲集物性差異明顯,對含油氣性及油氣產(chǎn)量具有明顯的控制作用,其中,主水下分支河道砂巖單層厚度大、粒度粗、分選好、泥質含量低,儲集物性好,含油氣性好,油氣產(chǎn)量高,是最有利的儲集相帶;水下分支河道、河口壩次之,席狀砂、濁積體相對較差。該研究為油氣勘探部署及井位優(yōu)選提供了依據(jù)。
[Abstract]:Based on logging, core and particle size analysis, the main sedimentary facies types, enrichment and high yield facies belts and their distribution in Banqiao slope of Qikou depression are studied.The results show that the BinI formation of Banqiao slope in Qikou sag is dominated by the development of fan delta front, and the gravity flow deposition of underwater fan on the far shore can be seen locally, which can identify the underwater branch channel (including the main underwater branch channel).There are two kinds of secondary microfacies, such as estuarine dam, table-shaped sand, and the distal sloughing turbidite in the subaqueous branch channel.The statistical analysis shows that the reservoir properties of different sedimentary microfacies are obviously different, which can control the oil and gas bearing property and oil and gas production obviously. Among them, the sandstone of the main underwater branch channel has large monolayer thickness, coarse grain size, good sorting and low muddy content.It is the most favorable reservoir facies belt with good reservoir physical property, good oil and gas bearing property and high oil and gas production, while the subaqueous branch channel, estuarine dam is the second, sheet sand and turbidite are relatively poor.The research provides a basis for oil and gas exploration and well location selection.
【作者單位】： 中國石油大港油田分公司;
【基金】：國家科技重大專項“渤海灣盆地北部油氣富集規(guī)律與增儲領域研究”(2011ZX06005)
【分類號】：P618.13

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