CAJ | 학술논문

针对扶余油田泉四段储层地质研究现状及不足，综合利用地震、测井、钻井、化验分析资料，以储层地质学及沉积岩石学为指导，首先开展小层划分与对比、沉积微相、微构造、储层特征等方面的基础工作，并在此基础上进行剩余油分布规律研究并预测了有利挖潜区带。研究表明研究区泉四段可划分为13个小层，主要储集砂体为三角洲平原分支河道和三角洲前缘水下分支河道，储层经历了机械压实、胶结等成岩作用，次生孔隙不发育，总体上属于中孔-中渗性储层。沉积微相展布及储层的岩性、物性、非均质性是研究区泉四段剩余油分布的主控因素，正向微构造，断阶及河道侧翼等区域剩余油潜力较大，I 类潜力区是下一步挖潜工作的重点区域。
침대부여유전천사단저층지질연구현상급불족，종합이용지진、측정、찬정、화험분석자료，이저층지질학급침적암석학위지도，수선개전소층화분여대비、침적미상、미구조、저층특정등방면적기출공작，병재차기출상진행잉여유분포규률연구병예측료유리알잠구대。연구표명연구구천사단가화분위13개소층，주요저집사체위삼각주평원분지하도화삼각주전연수하분지하도，저층경력료궤계압실、효결등성암작용，차생공극불발육，총체상속우중공-중삼성저층。침적미상전포급저층적암성、물성、비균질성시연구구천사단잉여유분포적주공인소，정향미구조，단계급하도측익등구역잉여유잠력교대，I 류잠력구시하일보알잠공작적중점구역。
Basic researches on the reservoir geology of Quan 4th Member in Fuyu oilfield are insufficient. In this paper, based on the integrated information of seismic data, logging data, drilling data and chemical examination data, guided by the reservoir geology and sedimentary petrology, the strata classification and contrast were carried out as well as study on sedimentary microfacies, microtectonics, reservoir characteristics;On the basis of previous research, the distribution of remaining oil and favorable potential zone prediction were analyzed. The research results show that the Quan 4th Member can be divided into 13 substratums in detail on isochrono stratigraphic correlation. The major reservoir sand bodies were deposited in distributary channels of delta plain subfacies and subaqueous distributary channels of delta front subfacies. Mechanical compaction, cementation and other effects are chief diageneses of the reservoir. Primary pores are the main ones of the reservoir, which are totally a middle porosity and permeability sandstone reservoir. Sedimentary microfacies distribution, reservoir lithology and physical property, and reservoir heterogeneity have main effect on the remaining oil distribution. Normal microtectonics, fault terrace, river channel flank are favorable potential zones. The I class potential area is the next key point of exploration area.