CAJ | 학술논문

基于岩心描述和镜下观察,分析了研究区下古生界硅化岩溶储集层的岩性特征.通过对沟通潜山断块和古近纪洼陷的边界断层产状、潜山断块内下古生界产状的分析,认为下古生界碳酸盐岩具备埋藏岩溶作用条件,提出了古近纪沉积物压释酸性水向潜山断块运移的3种方式,即:翘倾端断面补给畅流运移模式、倾没端断面补给畅流运移模式和背斜凸起两侧双向入渗补给对流循环模式.利用这3种模式可以合理解释研究区下古生界潜山硅化岩溶储集层空间分布的特点和规律.翘倾端断面补给畅流运移模式可以解释潜山断块高部位硅化岩溶层段储集层的发育情况,倾没端断面补给畅流运移模式和背斜凸起两侧双向入渗补给对流循环模式,可以解释潜山断块的低部位硅化岩溶层段储集层的发育情况.该模式还可以合理地解释硅化岩溶储集层在下古生界赋存层位的"穿层性"特点,同时也能够合理解释潜山断块周缘发育硅化岩溶层段,而潜山断块中心地带很少出现硅化岩溶层段等现象.
기우암심묘술화경하관찰,분석료연구구하고생계규화암용저집층적암성특정.통과대구통잠산단괴화고근기와함적변계단층산상、잠산단괴내하고생계산상적분석,인위하고생계탄산염암구비매장암용작용조건,제출료고근기침적물압석산성수향잠산단괴운이적3충방식,즉:교경단단면보급창류운이모식、경몰단단면보급창류운이모식화배사철기량측쌍향입삼보급대류순배모식.이용저3충모식가이합리해석연구구하고생계잠산규화암용저집층공간분포적특점화규률.교경단단면보급창류운이모식가이해석잠산단괴고부위규화암용층단저집층적발육정황,경몰단단면보급창류운이모식화배사철기량측쌍향입삼보급대류순배모식,가이해석잠산단괴적저부위규화암용층단저집층적발육정황.해모식환가이합리지해석규화암용저집층재하고생계부존층위적"천층성"특점,동시야능구합리해석잠산단괴주연발육규화암용층단,이잠산단괴중심지대흔소출현규화암용층단등현상.
By core description and micro-observation, the characteristic of the silicified karst reservoir of the Lower Paleozoic were analyzed in Zhuanghai area of Jiyang Depression. By analyzing the burial condition, source and hydrodynamic characteristic8 of the groundwater of the Lower Paleozoic, the authors proposed that the silicified karst process occurred in the deeply buried condition. The authors put forward 3 migration models of the press release water of the Paleogene 8ediments on the basis of exploring the boundary fault occurrence connecting the buried-hill with the Paleogene subsag and the strata occurrence of the Lower Paleozoic carbonate. The 3 migration models include: 1) open-fluid migration model of the tilted side faulted-block supply, 2) open-fluid migration model of the down-dip faulted-section supply, 3) convective circulation model of the two-way infiltration supply along two sides of the anticline block. Migration models of the press release water can be used to explain the distribution characteristics of the silicified karst reservoir in buried hills. Open-fluid migration model of the tilted side faulted-section supply can explain that the silicified karst reservoir is well developed in high position of some buried hills, while the other two models of the press release water can explain that silicified karst reservoir is well developed in low position of some buried hills. These 3 migration models together can also explain the " cross-layer character" of the silicified karst in the Lower Paleozoic carbonate rationally. The characters that silicified karst reservoir is well developed around the peripheral buried hills faulted blocks while not developed in the core zone of buried hills faulted block can be interpreted by these 3 migration models of the press release water.