徐芳,邢玉忠,张兴阳,程木伟,陈昶旭,江艳平
XU Fang,XING Yuzhong,ZHANG Xingyang,CHENG Muwei,CHEN Changxu,JIANG Yanping

• 1:中国石油勘探开发研究院
• 2:中国石油吐哈油田分公司
• 3:中国石油大港油田分公司勘探开发研究院

摘要(Abstract)：

阿姆河右岸中区中上侏罗统卡洛夫-牛津阶储层为缓坡礁滩沉积,储层基质物性差,但受多期构造运动的影响构造裂缝较为发育。根据露头剖面、单井岩性组合特征等,对单井进行了力学地层单元划分,探讨了力学地层单元对裂缝发育的控制作用。研究认为:力学地层单元对裂缝的控制作用主要体现在岩性与厚度两个方面;不同岩相裂缝密度具有明显差异,生物丘中裂缝密度最高,其次为生屑滩,丘滩间最低;力学地层厚度越大,裂缝密度越低,反之,裂缝密度越高;建立了不同岩相裂缝密度与力学地层单元厚度的定量关系,并实现了不同力学地层单元裂缝密度的预测。
Callovian-Oxfordian stage reservoirs of Middle-Upper Jurassic series in the central region of the right bank of Amu Darya are deposited on the slope reef flat and characterized by rather poorer physical properties for the reservoir matrix,but well-developed for the structural fractures influenced by multi-period tectonic movements.According to the characteristics of the outcrop section,individual-well lithological combination and so on,the division of the mechanical stratigraphic units is conducted for these single wells,and moreover the unit controls on the fracture development are explored and discussed.The study shows that the controls stated above are mainly displayed in the two aspects:lithology and thickness—the fracture intensity is obviously different for different Hthofacies,the highest intensity is in the bioherms,the next is in biodetritus banks and the lowest is in inter-reef shoal;the thicker the mechanic thickness is,the lower the fracture intensity will be,vice versa;the quantitative relationships between the fracture intensity and thickness is established for different hthofacies,and furthermore the predictions of the fracture intensity for different mechanical stratigraphic units are conducted.

关键词(KeyWords)： 力学地层单元;裂缝;阿姆河右岸;裂缝预测
mechanical stratigraphic unit;fracture;the right bank of Amu Darya;fracture prediction

Abstract:

Keywords:

基金项目(Foundation): 国家重大科技专项大型油气田及煤层气开发项目“阿姆河右岸中区天然气开发示范工程”(2011ZX05059)

作者(Author): 徐芳,邢玉忠,张兴阳,程木伟,陈昶旭,江艳平
XU Fang,XING Yuzhong,ZHANG Xingyang,CHENG Muwei,CHEN Changxu,JIANG Yanping

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