古地理学报
古地理學報
고지이학보
JOURNAL OF PALAEOGEOGRAPHY
2014年
5期
605-612
,共8页
易雪斐%张昌民%李少华%杜家元%李康%王浩宇%李向阳%周凤娟
易雪斐%張昌民%李少華%杜傢元%李康%王浩宇%李嚮暘%週鳳娟
역설비%장창민%리소화%두가원%리강%왕호우%리향양%주봉연
砂火山%形成机理%物理模拟%切片%模型重构%砂岩侵入体系
砂火山%形成機理%物理模擬%切片%模型重構%砂巖侵入體繫
사화산%형성궤리%물리모의%절편%모형중구%사암침입체계
sand volcano%formation mechanism%physical simulation%slice%model reconstruc-tion%sand injectites
近十年来,从露头、地震、岩心和测井曲线等资料中识别出了越来越多的砂岩侵入体。这些砂岩侵入体对油气勘探和开发既有正面影响,也有负面影响,但由于其发育过程和分布的复杂性,使得对于其成因机制和形成过程探讨较少。笔者建立了一套模拟砂岩侵入体系的实验装置,并设计了完整的实验程序,以模拟砂岩侵入体的形成过程,并探索其形成机理。在此基础上,进行了5组实验,分析了顶层沉积物厚度和进水管结构对砂岩侵入体形成的影响。通过对实验结果进行冷冻、切片和照相,将砂岩侵入体的形成过程分为5个阶段,并借助软件对每次实验的模型进行了三维重构,以期为更好地分析砂岩侵入体系的形成机理提供实验基础。
近十年來,從露頭、地震、巖心和測井麯線等資料中識彆齣瞭越來越多的砂巖侵入體。這些砂巖侵入體對油氣勘探和開髮既有正麵影響,也有負麵影響,但由于其髮育過程和分佈的複雜性,使得對于其成因機製和形成過程探討較少。筆者建立瞭一套模擬砂巖侵入體繫的實驗裝置,併設計瞭完整的實驗程序,以模擬砂巖侵入體的形成過程,併探索其形成機理。在此基礎上,進行瞭5組實驗,分析瞭頂層沉積物厚度和進水管結構對砂巖侵入體形成的影響。通過對實驗結果進行冷凍、切片和照相,將砂巖侵入體的形成過程分為5箇階段,併藉助軟件對每次實驗的模型進行瞭三維重構,以期為更好地分析砂巖侵入體繫的形成機理提供實驗基礎。
근십년래,종로두、지진、암심화측정곡선등자료중식별출료월래월다적사암침입체。저사사암침입체대유기감탐화개발기유정면영향,야유부면영향,단유우기발육과정화분포적복잡성,사득대우기성인궤제화형성과정탐토교소。필자건립료일투모의사암침입체계적실험장치,병설계료완정적실험정서,이모의사암침입체적형성과정,병탐색기형성궤리。재차기출상,진행료5조실험,분석료정층침적물후도화진수관결구대사암침입체형성적영향。통과대실험결과진행냉동、절편화조상,장사암침입체적형성과정분위5개계단,병차조연건대매차실험적모형진행료삼유중구,이기위경호지분석사암침입체계적형성궤리제공실험기출。
More and more sand injectites have been identified from outcrops,seismic data,core ob-servation and logging curves in the last decade.They exert great influence upon exploration and develop-ment of oil and gas,both positively and negatively.But because of their complex formation process and dis-tribution,fewer studies has been focused on soft sediments deformation's formation mechanisms.A set of laboratory simulation device is set up and a whole experimental procedure is designed to discuss their ge-netic mechanisms.On this basis,5 experiments considered the influence of two main variables on the structures formed during fluidization,i.e.,the thickness of the overlying coarse sediment layer and the con-figuration of inlet pipes,are carried out.Each experiment result is freezed,sliced and been taken photos to reconstruct a 3D model.It is hoped to provide an experimental basis for the formation mechanism analy-sis on sand injectites.