CAJ | 학술논문

基于地震地质解释，新西兰坎特伯雷盆地海域可划分为西部斜坡、中央坳陷和东部隆起三个构造单元。盆地经历了裂谷期（早白垩世—晚白垩世早期）、被动陆缘期（晚白垩世晚期—渐新世早期）和挤压沉降期（渐新世晚期至今）三个演化阶段，形成了不同的沉积序列。盆地发育两套成藏组合，上白垩统的Clipper组沼泽相煤系和Pukeiwitahi组平原相煤系为主要烃源岩，Clipper组河流相砂岩、Herbert组（或Broken River组）滨浅海相砂岩为主要储集层。裂谷期的古构造形态及断裂控制了主要圈闭类型及油气运聚方向，中央坳陷和东部隆起的近坳一侧，披覆背斜和断块圈闭成藏条件优越，是有利的勘探区带。
기우지진지질해석，신서란감특백뢰분지해역가화분위서부사파、중앙요함화동부륭기삼개구조단원。분지경력료렬곡기（조백성세—만백성세조기）、피동륙연기（만백성세만기—점신세조기）화제압침강기（점신세만기지금）삼개연화계단，형성료불동적침적서렬。분지발육량투성장조합，상백성통적Clipper조소택상매계화Pukeiwitahi조평원상매계위주요경원암，Clipper조하류상사암、Herbert조（혹Broken River조）빈천해상사암위주요저집층。렬곡기적고구조형태급단렬공제료주요권폐류형급유기운취방향，중앙요함화동부륭기적근요일측，피복배사화단괴권폐성장조건우월，시유리적감탐구대。
Canterbury Basin is a Cenozoic passive margin basin superimposing on a Mesozoic rift basin. The offshore host can be divided into three tectonic units, i.e. Western Slope, Central Depression and Eastern Uplift based on seismic interpretation and dril ing data analysis. The basin has experienced three evolution periods since Cretaceous, the rifting period (K1 to early K2), the passive continental margin period(late K2 to early E3) and the compressed subsidence period (late E3 to now), which brought in different sedimentary sequences. There are two plays in the basin, in which Upper Cretaceous Clipper swamp coal measures and Pukeiwitahi plain coal measures strata are as source rocks and Clipper fluvial sandstone and Herbert and/or Broken River neritic sandstone are as main reservoirs. The paleostructural configuration and the normal faults that formed during the rifting period control the distribution of traps and the direction of hydrocarbon migration. Good conditions of hydrocarbon accumulation are possessed in the draping anticlines and fault-block traps in Central Depression and on the side of Eastern Uplift adjacent to the depression, which are suggested to be the potential exploration areas.