CAJ | 학술논문

举岚盆地位于华南褶皱系闽西北隆起带，为燕山早期断坳陷盆地与燕山晚期火山盆地的叠加盆地。该区早白垩世坂头组二段、三段是主要烃源岩，总厚度达231.9~330.1 m，地化分析表明生烃指标较好，干酪根类型以Ⅲ型为主，处于高熟-过熟热演化阶段；坂头组的砂岩是主要储集层，砂岩累计厚度208.1~444.3 m，储集空间主要为裂缝型和孔隙型，与坂头组暗色泥岩形成自生自储型储盖组合。目前已发现三个出油气点，J1井、J9井通过储层改造捞获原油4.1 m3。
거람분지위우화남습추계민서북륭기대，위연산조기단요함분지여연산만기화산분지적첩가분지。해구조백성세판두조이단、삼단시주요경원암，총후도체231.9~330.1 m，지화분석표명생경지표교호，간락근류형이Ⅲ형위주，처우고숙-과숙열연화계단；판두조적사암시주요저집층，사암루계후도208.1~444.3 m，저집공간주요위렬봉형화공극형，여판두조암색니암형성자생자저형저개조합。목전이발현삼개출유기점，J1정、J9정통과저층개조로획원유4.1 m3。
Julan Basin,which was formed by the stacking of early Yanshan fault basin and late Yanshan volcanic ba-sin,is located in the northwest uplift of Fujian Province in South China fold system. The main hydrocarbon source rocks of the basin are the second and third members of Bantou Formation of early Cretaceous,with the total thickness of 231. 9 m to 330. 1 m. The geochemical analysis shows that the hydrocarbon index is better,the kerogen type is dominated by type III, which is at high mature to overmature thermal evolution stage. The main reservoirs in Bantou Formation are sandstones with the accumulative thickness of 208. 1m to 444. 3 m. The reservoir spaces are mainly fractures and pores,which formed a good reservoir - cap assemblage with dark mudstone of Bantou Formation. Up to now,we have found three oil wells,in which J1 well and J9 well have got 4. 1 m3 crude oil through reservoir reconstruction.