阿姆河右岸B区西部中上侏罗统卡洛夫-牛津阶储层特征及主控因素  

RESERVOIR CHARACTERISTICS AND MAIN CONTROLLING FACTORS OF CALLOVIAN- OXFORDIAN, WESTERN RIGHT BANK OF THE AMU DARYA

作　　者：李菡韵 杨洪志[1] 钟兵[1] 徐建亭[1] 刘勇[1] 吴建发[1] 

机构地区：[1]中国石油西南油气田公司勘探开发研究院

出　　处：《天然气勘探与开发》2016年第2期13-17,35,共6页Natural Gas Exploration and Development

摘　　要：利用单井取心及分析资料对阿姆河右岸B区西部中上侏罗统卡洛夫-牛津阶储层特征进行研究,明确了该区主要储层岩性以砂屑及生屑等类型的灰岩为特征,次生溶孔、残余原生空隙与裂缝共同作为有利储集空间,储层物性整体表现为低孔低渗。纵向上储层主要分布于XVac层、XVp层以及XVm层,但储层各单层厚度较薄,横向上分布不连续,平面上主要以加登、北加登及东伊利吉克区域最为发育。综合分析认为,该区储层的发育特征主要受到沉积期相控、成岩期溶蚀作用与后期构造裂缝的共同影响。For the Callovian-Oxfordian reservoir, western right bank of the Amu Darya, its characteristics were studied by some core analysis. Moreover, many favorable reservoir zones were determined on the basis of seismic result. Our study demonstrates that in this area,(1)the reservoir is mainly composed of calcarenite and bioclastic limestone;(2)its space includes secondary dissolution pore, residual primary pore, and fracture;(3)it is wholly characterized by low porosity and low permeability;(4)in longitudinal, affected by facies control in the sedimentary stage, dissolution in the diagenetic stage, and structural fracture in the later stage, this reservoir can be found in three strata, containing XVac, XVp, and XVm, their individual thickness is thinner;(5)horizontally, this reservoir is discontinuous; and(6)in planar, it can be found mainly in three areas of Gadyn, North Gadyn, and Westkishtuwan.

关 键 词：控制因素 储层特征 卡洛夫-牛津阶 土库曼斯坦 阿姆河右岸 

分 类 号：P618.13[天文地球—矿床学]