深海疏松沉积物变形模拟仪器研究  

A Design of Simulation Instrument Research of Deep Soft Sediment Deformation

作　　者：王浩宇[1] 易雪斐[1] 李康[1] 李君[1] 

机构地区：[1]长江大学地球科学学院油气资源与勘探技术教育部重点实验室,湖北荆州434023

出　　处：《重庆科技学院学报（自然科学版）》2015年第1期81-84,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家"十二五"重大专项(2011ZX05023-002)

摘　　要：疏松沉积物变形构造是指深水沉积砂体受到外界的触发,并在一定条件下形成超压,致使上覆弱渗透性沉积物发生破裂,砂体以流化和液化的形式向周围沉积物侵入。目前可通过露头和地震资料识别了各种疏松沉积物变形构造,然而,对于这些变形构造的形成机制的认识还很有限。设计了一套模拟疏松沉积物变形的实验装置,该装置可模拟砂岩液化、流化、变形、侵入的完整过程,对于探讨非黏结性的层状地层中疏松沉积物的形成机理提供很好的技术支持。Soft sediment deformation structure are liquefied fluidized deep water sand bodies,which intrude into the surrounding sediments when the hydraulic fracture occurs under certain overpressure formation conditions and some trigger mechanisms. At present the various soft sediment deformation structures are identified through outcrop and seismic data. However,understanding of the formation mechanism of the deformation structure is still very limited. This paper designed a set of experimental device simulating the deformation of soft sediments,16 parts of the whole device can be successfully show the general processes associated with the development of sandstone injective complexes including elevation of pore pressure,hydro fracture of sealing strata,liquefaction fluidization and injection of sand. It would provide a good technical support to explore the caking property of layered strata and the formation mechanism of soft sediments.

关 键 词：非黏性 露头 流化 疏松沉积物 

分 类 号：TH122[机械工程—机械设计及理论]