| 前陆冲断带构造应力场与裂缝发育关系 |
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| 引用本文： | 宋勇,冯建伟,戴俊生,刘旭,卞保力,李明.前陆冲断带构造应力场与裂缝发育关系[J].地质力学学报,2010,16(3):310-324. |
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| 作者姓名： | 宋勇 冯建伟 戴俊生 刘旭 卞保力 李明 |
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| 作者单位： | 中国石油新疆油田分公司勘探开发研究院;中国石油大学(华东)地球资源与信息学院;中国石油辽河油田公司勘探开发研究院海洋所南海室; |
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| 摘 要： | 针对前陆冲断带地层裂缝预测难的现状,在选择适合于研究区破裂准则的基础上,确立了造缝时期古地应力和现今地应力与裂缝参数之间的关系;通过构造特征研究确定了造缝时期古地应力的性质和方向,用断层和裂缝走向统计法、声速法、水力压裂法和声发射法计算了现今地应力的方向和大小;将古、今地应力场的数值模拟结果代入到裂缝参数计算模型中,计算出了乌夏前陆冲断带二叠系火山岩—沉积岩混杂地层裂缝的开度、密度、孔隙度和渗透率,并分析了分布趋势。研究表明,构造应力和岩性对裂缝发育起决定性作用,构造应力差异大的地区容易产生裂缝,且裂缝各项参数较大;靠近主断层的构造高部位裂缝发育程度较高;凝灰质和泥质含量越大,粒度越细,裂缝越发育。
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| 关 键 词： | 乌夏前陆冲断带 混杂地层 破裂准则 应力场 裂缝参数 |
| 收稿时间： | 2010/3/9 0:00:00 |
RELATIONSHIP BETWEEN STRUCTURAL STRESS FIELD AND DEVELOPMENT OF FRACTURES IN FORELAND THRUST BELT |
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| SONG Yong,FENG Jian-wei,DAI Jun-sheng,LIU Xu,BIAN Bao-li and LI Ming.RELATIONSHIP BETWEEN STRUCTURAL STRESS FIELD AND DEVELOPMENT OF FRACTURES IN FORELAND THRUST BELT[J].Journal of Geomechanics,2010,16(3):310-324. |
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| Authors: | SONG Yong FENG Jian-wei DAI Jun-sheng LIU Xu BIAN Bao-li and LI Ming |
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| Institution: | SONG Yong1,FENG Jian-wei2,DAI Jun-sheng2,LIU Xu1,BIAN Bao-li1,LI Ming3(1.Scientific Research Institute of Petroleum Exploration and Development,PetroChina Karmy Oilfield Company,Karamy 834000,China,2.Faculty of Geo-Resource and Information,China University of Petroleum(East China),Qingdao 255666,3.Exploration and Development Research Institute,PetroChina Liaohe Oilfield Company,Panjin 124010,China) |
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| Abstract: | Aiming at the difficulties in predicting the fractures in strata in thrust belt,by selecting the fracture criteria suitable for the Wuxia foreland thrust belts under study,this paper has defined a relation of mechanical parameters with the current stress field and the paleostress field during the formation of the fractures,Based on the study on the Permian reservoir fracture,we have finished a quantitative calculation for fracture aperture and other parameters and drawn a map of distribution of each formati... |
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| Keywords: | Wuxia foreland thrust belt strata of sedimentation and volcanic fracture criteria stress field fracture parameters |
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