CAJ | 학술논문

通过岩心与测井相研究，方正断陷大罗密—兴旺地区古近系发育扇三角洲、湖泊、水下扇三种主要的沉积相类型。新安村+乌云组时期，北西方向为主要物源区，南东方向为次要物源区，沿断裂发育规模较大的扇三角洲沉积，向湖泊方向渐变为滨浅湖沉积，研究区中心以半深湖相沉积为主。在方D4及方D7井附近发育一定规模的湖底扇沉积；宝泉岭组时期，物源供给能力比新安村+乌云组时期减小，沉积相带展布依然受断裂控制。扇三角洲沉积规模较小，这一时期以湖相沉积为主体，滨浅湖相沉积范围扩大，中部发育半深湖沉积，湖底扇沉积规模进一步缩小，仍集中在方D4、方D7井区。伊汉通断裂和其它一些次级断裂对沉积相带的展布起到控制作用。自下向上，扇三角洲沉积规模不断减小，湖泊相沉积规模在加大。反应基准面不断上升，以欠补偿沉积为主，全区以发育湖相暗色泥岩为主导岩相类型。
통과암심여측정상연구，방정단함대라밀—흥왕지구고근계발육선삼각주、호박、수하선삼충주요적침적상류형。신안촌+오운조시기，북서방향위주요물원구，남동방향위차요물원구，연단렬발육규모교대적선삼각주침적，향호박방향점변위빈천호침적，연구구중심이반심호상침적위주。재방D4급방D7정부근발육일정규모적호저선침적；보천령조시기，물원공급능력비신안촌+오운조시기감소，침적상대전포의연수단렬공제。선삼각주침적규모교소，저일시기이호상침적위주체，빈천호상침적범위확대，중부발육반심호침적，호저선침적규모진일보축소，잉집중재방D4、방D7정구。이한통단렬화기타일사차급단렬대침적상대적전포기도공제작용。자하향상，선삼각주침적규모불단감소，호박상침적규모재가대。반응기준면불단상승，이흠보상침적위주，전구이발육호상암색니암위주도암상류형。
Through research of core and log facies, in the Fangzheng fault depression Daluomi-Xingwang area Paleogene developed three main sedimentary facies types: fan delta, lakes, underwater fan. Xin'an village + Wuyun formation period, the main provenance is NW direction, the secondary one is SE direction, the larger scale fan delta sediment developed along faults, shore-shallow lacustrine sediment to gradient direction of lakes, in the center of the study area was mainly in the semi deep lacustrine facies. Near Well Fang D4 and D7, certain scale sublacustrine fan developed; Baoquanling formation period, sediment supply capacity less than Xin'an village + Wuyun formation period, sedimentary facies distribution is still controlled by faults. Fan delta is smaller scale sediment, lacustrine deposits as the main in this period, shore-shallow lacustrine facies sediment expanded, developed semi deep lake sediments in the central, sublacustrine fan sedimentary further reduced scale, is still concentrated in the Fang D4, Fang D7 well area. Yihantong fault and other secondary faults controlled the distribution of sedimentary facies. From the bottom to up, fan delta sediment scale reduced while lacustrine facies sediment expanded. The reaction base level rising, undercompensated sediment is mainly, In the region, dominent lithofacies type is developed lacustrine facies dark mudstone.