CAJ | 학술논문

　　应用地震综合解释技术，对四川盆地大川中地区21000 km二维地震和近3000 km2三维地震进行深层断裂体系的系统解译研究。研究表明，深层断裂具有以下3个特征：（1）控制沉积盖层构造变形；（2）纵向上规模大，下部断入基底，上部断入飞仙关组，同时伴有花状断裂产生；（3）深、浅层断裂特征明显不同，深层断裂角度陡，以走滑断裂为主，浅层断裂角度相对较缓，以逆断层为主。在大川中地区共解释断裂172条，断裂平面延伸长度3～79 km不等。深层断裂平面展布具有明显的分区和分带性，威远—资阳—遂宁—大足一带，以北东向和近东西向为主；巴中—仪陇—广安一带，以北西向和近东西向为主；平昌—达州一带，以近南北向为主。深层断裂对该区沉积相带和有利沉积体的分布有控制作用，可以沟通低孔隙和致密储层，有效改善储层物性，提高油气产能。深层断裂可以控制局部构造圈闭的形成；同时可以作为油气运移的通道，有效沟通烃源岩和储集层，控制异源型烃源体系的油气成藏。
　　응용지진종합해석기술，대사천분지대천중지구21000 km이유지진화근3000 km2삼유지진진행심층단렬체계적계통해역연구。연구표명，심층단렬구유이하3개특정：（1）공제침적개층구조변형；（2）종향상규모대，하부단입기저，상부단입비선관조，동시반유화상단렬산생；（3）심、천층단렬특정명현불동，심층단렬각도두，이주활단렬위주，천층단렬각도상대교완，이역단층위주。재대천중지구공해석단렬172조，단렬평면연신장도3～79 km불등。심층단렬평면전포구유명현적분구화분대성，위원—자양—수저—대족일대，이북동향화근동서향위주；파중—의롱—엄안일대，이북서향화근동서향위주；평창—체주일대，이근남북향위주。심층단렬대해구침적상대화유리침적체적분포유공제작용，가이구통저공극화치밀저층，유효개선저층물성，제고유기산능。심층단렬가이공제국부구조권폐적형성；동시가이작위유기운이적통도，유효구통경원암화저집층，공제이원형경원체계적유기성장。
To research the deep-rooted fault system in Dachuanzhong area of Sichuan Basin ,2D seismic data of 21 000 km and 3D seismic data of 3 000 km2 were interpreted applying the integrated seismic interpretation technique .Three charac-teristics of the deep-rooted faults were revealed .The deep-rooted faults control the tectonic deformation of the seals .They cut downward into the basement and upward into the Feixianguan Formation and are associated with flower -shaped faults . The deep faults and the shallow ones have distinct characteristics ,with the former being high in angle and dominated by strike-slip faults while the latter being relatively low in angle and dominated by reverse faults .A total of 172 faults were interpreted in Dachuanzhong area and their lateral extensions range from 3 to 79 km.The areal distribution of deep faults shows distinct zonation .The first zone is Weiyuan-Ziyang-Suining-Dazu area where the faults are NE-trending or nearly EW-trending.The second is Bazhong-Yilong-Guang’ an area where the faults are NW-trending or nearly EW-trending. The third is Pingchang-Dazhou area where the faults are SN-trending .The deep faults control the sedimentary faces belts and the distribution of favorable sedimentary body ,communicate the low porosity and tight reservoirs ,effectively improve the reservoir properties and increase oil and gas production capacity .They also control the formation of local structural traps and can act as effective migration pathways for hydrocarbons from source rocks to reservoirs and control hydrocarbon accumulation of allogenic source systems .