本文關(guān)鍵詞： 塔里木盆地 輪古地區(qū) 奧陶系 鷹山組 風化殼巖溶 巖溶殘丘 控儲特征　出處：《石油勘探與開發(fā)》2017年05期 　論文類型：期刊論文

【摘要】：基于塔里木盆地輪古地區(qū)奧陶系鷹山組風化殼巖溶古地貌精細刻畫,對巖溶殘丘規(guī)模、數(shù)量及控儲特征進行了量化研究。首先應(yīng)用"印模法"及殘丘體積計算公式,刻畫了各級巖溶微地貌,對巖溶殘丘的數(shù)量、相對幅度、面積、體積等參數(shù)進行定量評價,分析殘丘不同部位儲集層發(fā)育情況。輪古地區(qū)風化殼巖溶高差范圍約140~160 m,厚度由巖溶高地向斜坡和階地減小;共識別出各類殘丘252個,Ⅰ、Ⅱ類殘丘雖數(shù)量較少,但總體體積大,為有利的儲集層發(fā)育區(qū);殘丘與現(xiàn)今構(gòu)造高點重合率高(96.42%),后期構(gòu)造運動基本未改變殘丘形態(tài),具備良好的成藏條件;巖溶殘丘主體部位洞穴型、裂縫孔洞型、孔洞型和裂縫型儲集層均有發(fā)育,且優(yōu)質(zhì)儲集層發(fā)育厚度較大,各項儲集層參數(shù)優(yōu)于殘丘翼部,殘丘相對幅度與單井產(chǎn)量具正相關(guān)性,殘丘規(guī)模和部位與產(chǎn)量關(guān)系密切。
[Abstract]:Based on the fine description of karst paleogeomorphology in weathering crust of Ordovician Yingshan formation in Luangu area of Tarim Basin, the scale of karst residual hills is studied. Quantitative study on quantity and reservoir control characteristics is carried out. Firstly, the number, relative amplitude and area of karst residual mound are described by using the "impression method" and the calculation formula of residual mound volume. The volume and other parameters were quantitatively evaluated to analyze the reservoir development in different parts of the remnant mound. The Karst height difference of weathering crust in Lungu area was about 140 ~ 160 m and the thickness decreased from karst high ground to slope and terrace. A total of 252 mounds of various types were identified. Although the number of type 鈪，

本文編號：1448507