本文選題：扶余油層　切入點：儲層預(yù)測　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：高臺子油田位于松遼盆地北部中央坳陷區(qū)大慶長垣南部,扶余油層在中生界白堊系泉頭組四段地層內(nèi)。本文在綜合前人研究成果和研究區(qū)三維地震、測井和地質(zhì)資料的基礎(chǔ)上,運用高分辨率層序地層學(xué)、地震勘探學(xué)和儲層沉積學(xué)等理論,系統(tǒng)開展了層序地層劃分與對比、地震屬性和儲層反演預(yù)測、沉積微相展布、砂體分布特征等方面的研究。扶余油層為一套具較大水深變化幅度的、彼此間具成因聯(lián)系的地層所組成的區(qū)域性湖進沉積。在層序地層研究基礎(chǔ)上,井震結(jié)合將高臺子油田扶余油層劃分3個油層組、17個小層,完成了工區(qū)內(nèi)109口井層序地層劃分與對比,建立了全區(qū)的等時地層格架。采用了多屬性以及高精度測井約束反演等多種儲層預(yù)測方法,建立了一套以精細標定解釋為基礎(chǔ),巖、電、震敏感性分析一體化的疊后定性一定量聯(lián)合反演預(yù)測描述技術(shù),能精細刻畫砂巖的主要分布范圍及規(guī)律。在區(qū)域沉積背景的基礎(chǔ)上,根據(jù)巖心觀察和測井相,結(jié)合地震剖面相和反射結(jié)構(gòu)分析,確定了研究區(qū)發(fā)育典型的河控淺水河流-三角洲沉積體系,物源方向為齊齊哈爾水系,發(fā)育2類亞相(三角洲平原和三角洲前緣)和8個微相,以水上、水下分流河道微相最為發(fā)育,分流河道砂體是最有利的儲集砂體。綜合沉積特征和儲層預(yù)測成果,從開發(fā)區(qū)以及區(qū)域砂體對比入手,對扶余油層河道砂體發(fā)育及連通特征進行了對比分析,最終落實各小層砂體發(fā)育展布特征。認為扶Ⅰ油層組中部和扶Ⅱ油層組的上部砂體非常發(fā)育,單層連通性較差,砂體的形態(tài)及展布控制了油層的平面分布。同時結(jié)合構(gòu)造斷層、開發(fā)試驗數(shù)據(jù)等因素優(yōu)選出四個有利河道砂區(qū)塊,為進一步評價高臺子油田扶余油層潛力、提交油氣后備儲量及開發(fā)部署提供了地質(zhì)依據(jù)和有利保障。
[Abstract]:The Gaotaizi Oilfield is located in the south of Daqing Placanticline in the central depression of the northern Songliao Basin, and the Fuyu reservoir is in the fourth member of the Quantou formation of the Mesozoic Cretaceous system. Based on the theories of high-resolution sequence stratigraphy, seismic exploration and reservoir sedimentology, the sequence stratigraphic division and correlation, seismic attributes and reservoir inversion prediction, sedimentary microfacies distribution, etc. The Fuyu oil reservoir is a set of regional lacustrine sediments composed of strata with a large range of water depth changes and genetic relations with each other. Based on the study of sequence stratigraphy, Combined with well earthquakes, Fuyu reservoir in Gaotaizi Oilfield was divided into 3 reservoir groups and 17 small layers, and the sequence stratigraphy and correlation of 109 wells in the working area were completed. The isochronous stratigraphic framework of the whole area is established. A set of reservoir prediction methods, such as multi-attribute and high-precision logging constrained inversion, are established, which are based on fine calibration interpretation, rock, electricity, etc. The integrated post-stack qualitative prediction and prediction technique, which is integrated with seismic sensitivity analysis, can accurately describe the main distribution range and law of sandstone. On the basis of regional sedimentary background, according to core observation and logging facies, Based on the analysis of seismic profile facies and reflection structure, a typical fluvial delta sedimentary system of shallow river control in the study area has been determined, and the source direction is Qiqihar water system. Two subfacies (delta plain and delta front) and eight microfacies are developed. The microfacies of distributary channel on water and underwater are the most developed. The sand body of distributary channel is the most favorable reservoir sand body, which synthesizes the sedimentary characteristics and reservoir prediction results. Starting from the contrast of the development zone and the regional sand body, the development and connectivity characteristics of the channel sand body in Fuyu oil reservoir are compared and analyzed. Finally, it is considered that the sand bodies in the middle part of the Fu 鈪，

本文編號：1591634