黄骅坳陷白唐马地区下第三系深层碎屑岩储层裂缝分析  

A FRACTURE ANALYSIS OF PALEOGENE DEEP CLASTIC RESERVOIR ROCK IN BAITANGMA AREA, HUANGHUA DEPRESSION

作　　者：王光奇[1] 岳云福[1] 漆家福[2] 李健[3] 

机构地区：[1]石油大学油气成藏机理教育部重点实验室,北京,102200,大港油田滩海勘探开发公司,天津,300280 [2]石油大学油气成藏机理教育部重点实验室,北京,102200 [3]大港油田滩海勘探开发公司,天津,300280

出　　处：《中国海上油气（地质）》2002年第6期384-388,共5页China Offshore Oil and Gas(Geology)

基　　金：国家重点基础研究发展计划(973计划)

摘　　要：根据岩心裂缝观测、岩心微裂缝电镜扫描、裂缝包裹体测试、测井裂缝解释等多项资料分析了渤海湾盆地黄骅坳陷白唐马地区下第三系深层碎屑岩储层裂缝特征.研究表明,本区裂缝主要包括高角度倾斜、走向NEE和NNW的两组构造裂缝,此外还发育有不规则的超压裂缝.裂缝主要在东营组沉积期和明化镇组沉积期形成.构造应力作用、流体压力和岩性是控制裂缝形成和演化的主要因素.预测白唐马地区下第三系深层裂缝发育的深度范围主要为3800～4000m,北大港断裂带东南侧港深39-港深78井区是裂缝相对发育区.For the Paleogene deep clastic reservoir rock in Baitangma area, Huanghua Depression, a fracture analysis has been completed by core description, scanning electron microscopy of core microfracture, fracture inclusion testing and logging fracture interpretation. In the clastic reservoir rock, there are two dominated sets of structural fractures with high dip, trending ENE and NNW respectively, with some overpressured fractures developed unevenly. These fractures formed mainly during deposition of Dongying and Minghuazhen Formations, and their formation and evolution were largely controlled by structural stress, fluid pressure and lithology. It can be predicted that the main fractured zone is from 3800m to 4000m in depth in the Paleogene reservoir rock, and that areas of Gangshen 39 to Gangshen 78 in the eastsouthern Beidagang Fault may contain more fractures.

关 键 词：黄骅坳陷 白唐马地区 下第三系 深层碎屑岩储层 裂缝 孔隙流体压力 构造应力场 油气地质 

分 类 号：P618.130.2[天文地球—矿床学] T[天文地球—地质学]