本文選題：關(guān)草澗油區(qū) + 沉積微相��； 參考：《西安石油大學(xué)》2017年碩士論文

【摘要】：研究區(qū)位于楊米澗關(guān)草澗鄉(xiāng),由于該區(qū)地質(zhì)條件復(fù)雜,從而導(dǎo)致對(duì)地質(zhì)的認(rèn)識(shí)情況不足,影響后期的開采。因此針對(duì)上述問題,本文在前人的研究基礎(chǔ)上掌握了研究區(qū)的構(gòu)造背景和地層特征,在區(qū)域標(biāo)志層的控制下,以沉積旋回為基礎(chǔ),參考地層厚度,對(duì)研究區(qū)的兩個(gè)主力層段長(zhǎng)4+5,長(zhǎng)6進(jìn)行了劃分。通過單井相、沉積微相剖面圖及平面圖,對(duì)研究區(qū)沉積特征進(jìn)行了全面分析。從儲(chǔ)層的巖石學(xué)特征入手,通過物性分析和成巖作用了解儲(chǔ)層的物性,非均質(zhì)性,敏感性等特征。并在此基礎(chǔ)上對(duì)儲(chǔ)層做出了分類與評(píng)價(jià)。研究表明研究區(qū)主要發(fā)育為三角洲前緣水下分流河道砂體,平面上發(fā)育有多支河道并且具有一定的繼承性;儲(chǔ)集層以細(xì)砂巖、粉砂巖為主,儲(chǔ)層砂巖孔隙類型主要是粒間孔,其次是溶蝕孔,裂隙基本不發(fā)育。長(zhǎng)4+5儲(chǔ)層多屬于中-小孔隙,喉道類型為片狀和彎片狀,孔隙結(jié)構(gòu)為Ⅰ和Ⅱ類;長(zhǎng)6儲(chǔ)層為中-大孔隙,喉道類型為縮頸型,孔隙結(jié)構(gòu)為Ⅱ類和Ⅲ類。研究區(qū)的非均質(zhì)性較強(qiáng)。在對(duì)儲(chǔ)層進(jìn)行分析的基礎(chǔ)上通過主要參數(shù)對(duì)儲(chǔ)層進(jìn)行了分類與評(píng)價(jià),將其分為A,B,C三類,并以B類儲(chǔ)層為主。本論文的研究進(jìn)一步加深了對(duì)該儲(chǔ)層特征和沉積相的研究,這對(duì)油田產(chǎn)量持續(xù)穩(wěn)定增加,提高油田的開采效率將有著重要指導(dǎo)意義。
[Abstract]:The study area is located in Yangmijian Guancaojian Township. Because of the complex geological conditions in this area, the understanding of geology is insufficient, which affects the later mining.Therefore, in view of the above problems, this paper grasps the tectonic background and stratigraphic characteristics of the study area on the basis of previous studies. Under the control of the regional marker layer, based on the sedimentary cycle, the paper refers to the thickness of the stratum.The two main layers of the study area are divided into 4 5 and 6 sections.Based on the single well facies, sedimentary microfacies profile and plane diagram, the sedimentary characteristics of the study area are comprehensively analyzed.Based on the petrological characteristics of the reservoir, the physical properties, heterogeneity and sensitivity of the reservoir are studied through physical property analysis and diagenesis.On this basis, the reservoir is classified and evaluated.The study shows that the study area is mainly developed into delta front underwater distributary channel sand body, there are many river channels developed on the plane and have certain inheritance, the reservoir is mainly composed of fine sandstone and siltstone, and the pore type of reservoir sandstone is mainly intergranular pore.The second is the corrosion hole, the crack is basically not developed.Chang 45 reservoir mostly belongs to medium-small pore, throat type is flaky and curved, pore structure is 鈪，

本文編號(hào)：1736656