复杂油气藏
複雜油氣藏
복잡유기장
COMPLEX HYDROCARBON RESERVOIRS
2013年
2期
35-40
,共6页
卞杨地区%阜二段%地应力%裂缝%数值模拟
卞楊地區%阜二段%地應力%裂縫%數值模擬
변양지구%부이단%지응력%렬봉%수치모의
Bian -Yang region%Fu 2 member%ground stress%fracture%numerical simulation
经过岩心裂缝观测,获得了卞杨地区阜二段储层裂缝的性质、充填、开度、密度、走向、倾角等裂缝参数。采用莫尔-库仑准则和格里菲斯准则相结合的方法建立了物理模型,按照能量守恒原理建立了应力和应变的数学关系,根据前人古应力场、现今应力场研究成果,数值模拟了卞东区块阜二段、杨家坝区块阜二段储层裂缝的开度、密度、孔隙度和渗透率。对比认为,研究结果可靠。
經過巖心裂縫觀測,穫得瞭卞楊地區阜二段儲層裂縫的性質、充填、開度、密度、走嚮、傾角等裂縫參數。採用莫爾-庫崙準則和格裏菲斯準則相結閤的方法建立瞭物理模型,按照能量守恆原理建立瞭應力和應變的數學關繫,根據前人古應力場、現今應力場研究成果,數值模擬瞭卞東區塊阜二段、楊傢壩區塊阜二段儲層裂縫的開度、密度、孔隙度和滲透率。對比認為,研究結果可靠。
경과암심렬봉관측,획득료변양지구부이단저층렬봉적성질、충전、개도、밀도、주향、경각등렬봉삼수。채용막이-고륜준칙화격리비사준칙상결합적방법건립료물리모형,안조능량수항원리건립료응력화응변적수학관계,근거전인고응력장、현금응력장연구성과,수치모의료변동구괴부이단、양가패구괴부이단저층렬봉적개도、밀도、공극도화삼투솔。대비인위,연구결과가고。
By the core observation,the fracture parameters of Fu 2 member in Bian -Yang region,such as its nature, packing,aperture,density,strike,dip and so on,is acquired.With Coulumb -Mohr principle and Griffith principle,the me-chanical model and the relationship between stress and fracture parameter are established.On the basis of earlier research results of paleo -stress and present stress,the aperture,density,porosity and permeability of rock fracture in Fu 2 member of Biandong Oilfield and Yangjiaba Oilfield are numerically calculated.The study shows that the results are reliable.