现代地质2012，Vol.26Issue(1)：145-153,9.
阿尔及利亚X区块泥盆系Siegenian组储层微观特征及成岩作用对其影响
Microcosmic Characteristics and the Effect of Diagenesis on the Siegenian Formation Reservoir of Devonian in X Block, Algeria
摘要
Abstract
The microcosmic characteristics of the Siegenian Formation reservoir in X block are analyzed by studying the effect of lithology, diagenesis, pore types and clay minerals on pore structure based on cores, well-logs , and formation test data including the rock thin sections and cast thin sections, the observation of scanning electron microscopy, pressured-mercury testing and X-ray diffraction analysis of clay minerals. Reservoir lithology is mainly quartz fine sandstone with high compositional maturity. Six pore types including primary intergranu-lar pores, intragranular dissolved pores, intergranular dissolved pores, moldic pores, cement dissolved pores and microfractures, are identified in the Siegenian Formation reservoir. The quartz intergranular dissolved pores and the quartz overgrowth cement dissolved pores are found for the first time in this area. The secondary dissolution pore is the main pore type in X block. Pore structure is mainly micro-pore with thin to micro-throat association, beside a few medium pores with thin throat and micro-pores with micro-throat. The diagenesis types are various. Compaction and cementation is the main reasons for the pores and pore throats decreasing. In the opposite , dissolution is important in improving the quality of reservoir. This study of the reservoir will guide the future exploration of this area.关键词
阿尔及利亚/泥盆系/Siegenian组/孔隙类型/孔隙结构/成岩作用Key words
Algeria/ Devonian/ Siegenian Formation/ pore type/ pore structure/ diagenesis分类
能源科技引用本文复制引用
张春明,姜在兴,张元福,陈琪,赵伟..阿尔及利亚X区块泥盆系Siegenian组储层微观特征及成岩作用对其影响[J].现代地质,2012,26(1):145-153,9.基金项目
中国石油天然气勘探开发公司重点基础研究项目(B3Y10S0060). （B3Y10S0060）
