中国石油大学学报（自然科学版）2016，Vol.40Issue(5)：1-9,9.DOI:10.3969/j.issn.1673-5005.2016.05.001
伊拉克HF油田Mishrif组厚壳蛤滩相储层沉积与早期成岩特征
Reservoir and early diagenesis characteristics of rudist shoal of Mishrif Formation in HF Oilfield of Iraq
摘要
Abstract
Based on observations of cores and thin sections, and measurements of trace elements and isotope, the microfacies and early diagenesis of MB2-MC1 member in Mishrif Formation, HF Oilfield of Iraq were studied. The sedimentary facies of MB2-MC1 member were open platform and shelf margin. There were two layers of abundant rudists deposited in rudists shoal, and two other layers deposited by storm. The rudist shoal was deposited in shelf margin, where the Sr/Ba vaule was 5. 74, higher than that of the rudist layers deposited by storm. The rudist shoal shows the characteristics of nonindigenous growth and strong synsedimentary breakup, which are very different from other reefs. The main lithofacies of rudist shoals were composed of rudist rudstone, rudist grainstone and rudist packstone, without reef limestone. The rudist shoals alternate with open shelf shoals. The meteoric water leaching of rudist shoals was strong during exposure, with weak cementation. The pore assembly of rudist shoals was composed of intergranular pores, intergranular dissolved pores, cave and dissolved microfractures.关键词
HF油田/白垩系/厚壳蛤/台缘滩/储层沉积/成岩特征Key words
HF Oilfield/Cretaceous/rudist/shelf-edge shoal/reservoir sedimentology/diagenesis characteristics分类
天文与地球科学引用本文复制引用
伏美燕,赵丽敏,段天向,周文,刘磊..伊拉克HF油田Mishrif组厚壳蛤滩相储层沉积与早期成岩特征[J].中国石油大学学报（自然科学版）,2016,40(5):1-9,9.基金项目
中国石油股份有限公司“十二五”重大专项(2011E-2501) （2011E-2501）
