CAJ | 학술논문

以石油地质理论为基础，应用含油气系统评价方法，分析了俄罗斯东萨哈林—鄂霍茨克盆地的构造沉积演化特征和油气地质条件。盆地主要经历了裂谷期、转换拉伸期和反转期三个构造演化阶段。转换拉伸期形成了上渐新统达耶组—胡林组泥页岩、下中新统威宁组—达吉组煤系地层和中—上中新统奥科贝凯组—努托瓦组下段泥页岩等3套海相优质烃源岩，同时发育了钻井已证实的3套有利储盖组合。储层以海相三角洲砂岩为主，储集物性好。反转期构造运动使得盆地发育了构造、构造-地层等多种类型的圈闭。盆地生储盖组合和油气的生成、运移、聚集形成了较好的匹配格局，成藏条件优越。目前已发现的油气田主要分布在盆地西部地区，指出盆地东部海上的奥道普金凸起、南奥道普金凸起、柴沃坳陷内凸起带以及陆上的奥哈凸起、塔姆列夫凸起为盆地的有利勘探方向。
이석유지질이론위기출，응용함유기계통평개방법，분석료아라사동살합림—악곽자극분지적구조침적연화특정화유기지질조건。분지주요경력료렬곡기、전환랍신기화반전기삼개구조연화계단。전환랍신기형성료상점신통체야조—호림조니혈암、하중신통위저조—체길조매계지층화중—상중신통오과패개조—노탁와조하단니혈암등3투해상우질경원암，동시발육료찬정이증실적3투유리저개조합。저층이해상삼각주사암위주，저집물성호。반전기구조운동사득분지발육료구조、구조-지층등다충류형적권폐。분지생저개조합화유기적생성、운이、취집형성료교호적필배격국，성장조건우월。목전이발현적유기전주요분포재분지서부지구，지출분지동부해상적오도보금철기、남오도보금철기、시옥요함내철기대이급륙상적오합철기、탑모렬부철기위분지적유리감탐방향。
East Sakhalin-Okhotsk Basin has experienced three tectonic evolution stages, rifting, extension and inversion stages. It is shown that during the extension stage, three sets of excellent source rocks developed, including Upper Oligocene Dae-Khurye mudstone, Lower Miocene Uyni-Dagi coal series and Middle-Upper Miocene Okobykai-Nutovian mudstone source rocks. Confirmed by drilling data, three favorable reservoir-cap assemblages are then distinguished. Most of reservoirs consist of marine deltaic sandstones with good reservoir property. Tectonic movements during the inversion stage made a group of structural traps, structural-lithological traps and other typed traps develop in the basin. Good match of the source-reservoir-cap assemblages with hydrocarbon generation and migration decides good conditions of hydrocarbon accumulation for the basin. Excepting most of discovered fields in the western part of the basin, it is suggested that the prospective structural areas are offshore Audopukin Uplift, South Audopukin Uplift and the uplift zone in Chayvo Depression in the eastern part of the basin, as well as onshore Aukha Uplift and Tamlev Uplift.