摘要
在岩心观察和成像测井资料分析的基础上，对贝尔凹陷布达特群潜山裂缝发育特征进行描述，得到贝尔凹陷布达特群潜山裂缝以张性和剪切缝为主，线密度主要为5～15条／m，倾角以50°～60°为主，宽度为0．1～5m，以小缝为主，中缝次之。56％的裂缝被充填，44％的裂缝半充填和开启。主要发育3期裂缝。通过裂缝发育及分布特征与其影响因素叠合研究，得到贝尔凹陷布达特群潜山裂缝发育和分布主要受活动强度大的长期继承性断裂、岩性和单层厚度的控制。利用活动强度大的长期继承性断裂分布密度对贝尔凹陷布达特群潜山裂缝有利区进行了预测，得到凹陷中西部地区是布达特群潜山裂缝发育的有利地区，其中苏德尔特潜山构造带中部及其以北地区、呼和诺仁断鼻构造带南部和贝西洼槽南部交界处是布达特群潜山断裂发育的最有利地区。
Based on core observation and image logging data analysis,this paper described fracture development characteristics of Budatequn Buried hill in Beier Depression.Fractures are mainly extension and shear with linear density of 5-15/m,dip of 50°-60°,width of 0.1-5m,micro fractures being dominant ones,and medium fractures the second,56% fractures have been filled and 44% is half-unfilled or opened,where fracture for 3 periods are mainly developed.Integrate research on fracture development,distribution characteristic and effects etc.,have indicated that Budatequn development and distribution are controlled by long inherited fault with strong activity,lithology and single bed thickness.Using distribution density of fault,this paper predicts favorable area in Budatequn Buried hill.It also concludes that central west area is favorable for Budatequn Buried hill,among which central part and its north area of Sudernter Buried hill as well as border between south area of Huhenuoren faulted nose structural and south of Beixi depression and trough both are the most favorable area for fault development of Budaterqun Buried hill.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2006年第4期21-23,共3页
Petroleum Geology & Oilfield Development in Daqing
基金
国家973重点基础研究项目:高效大气田形成与分布研究(2001CB209104)
关键词
贝尔凹陷
布达特群潜山
裂缝
发育与分布
预测
Beier Depression,Budatequn Buried hill
fractures
development and distribution
predication
