發(fā)布時(shí)間：2018-03-26 18:28

  本文選題：延安組　切入點(diǎn)：儲(chǔ)層　出處：《西安石油大學(xué)》2015年碩士論文

【摘要】：本文以石油地質(zhì)學(xué)、沉積巖石學(xué)和儲(chǔ)層地質(zhì)學(xué)等理論為指導(dǎo),以實(shí)驗(yàn)測(cè)試技術(shù)為依托,綜合應(yīng)用鉆井、測(cè)井及生產(chǎn)動(dòng)態(tài)資料,從沉積相和砂體展布研究入手,對(duì)延10儲(chǔ)層的巖石學(xué)特征、物性特征、孔隙結(jié)構(gòu)特征以及宏觀非均質(zhì)性進(jìn)行了研究和分析,取得了以下成果和認(rèn)識(shí)。根據(jù)巖心觀察、沉積構(gòu)造及測(cè)井相分析表明,延10期主要發(fā)育曲流河相,主要包括河道滯留、邊灘、天然堤、決口扇、泛濫平原等微相沉積。通過(guò)巖心描述及巖石薄片鑒定,研究區(qū)延10油層組儲(chǔ)層主要為灰色、灰白色粗粒長(zhǎng)石巖屑砂巖,砂巖的成分成熟度和結(jié)構(gòu)成熟度均較低。根據(jù)常規(guī)物性資料分析,延101儲(chǔ)層的平均孔隙度為9.63%,平均滲透率為8.94×10-3μm2;延102儲(chǔ)層砂巖平均孔隙度為9.97%,平均滲透率為7.02×10-3μm2;延103儲(chǔ)層砂巖平均孔隙度為9.43%,平均滲透率為6.08×10-3μm2。本區(qū)延10油層組砂巖儲(chǔ)層孔隙類(lèi)型主要為粒間孔,總面孔率為3.7%;其次為粒內(nèi)孔、鑄�？�、長(zhǎng)石溶孔,三者總面孔率為4.5%,各類(lèi)孔隙所占的總面孔率平均值為7.5%。研究區(qū)延101~延103儲(chǔ)層砂體間存在較明顯的差異,其中102砂巖密度最大,說(shuō)明其砂體發(fā)育程度最優(yōu),其次為延103,101的砂巖密度最小。延10儲(chǔ)層各個(gè)小層層間非均質(zhì)性均相對(duì)較弱。
[Abstract]:Under the guidance of the theories of petroleum geology, sedimentary petrology and reservoir geology, and based on experimental test technology, this paper comprehensively applies drilling, well logging and production dynamic data to study the distribution of sedimentary facies and sand bodies. The petrological characteristics, physical properties, pore structure characteristics and macroscopic heterogeneity of Yan 10 reservoir are studied and analyzed, and the following results and understandings are obtained. According to core observation, sedimentary structure and log facies analysis show that, The meandering river facies are mainly developed in Yan10 period, including channel retention, banks, natural levees, crevasse fans, flood plains and other microfacies. Through core description and identification of rock thin sections, the reservoir of Y10 oil formation in the study area is mainly gray. The grayish white coarse feldspathic sandstone has low compositional maturity and structural maturity. The average porosity of Yan 101 reservoir is 9.63, the average permeability is 8.94 脳 10 -3 渭 m 2, the average porosity of Yan 102 sandstone is 9.97, the average permeability is 7.02 脳 10 -3 渭 m 2, and the average porosity of Yan 103 sandstone is 9.43 and the average permeability is 6.08 脳 10 -3 渭 m 2. The pore type is mainly intergranular pore. The total face rate was 3.7, followed by the intragranular pore, mold hole, feldspar solution pore, the total face rate of the three groups was 4.5 and the average of the total porosity was 7.5. There were obvious differences between the sand bodies of 101-Yen103 reservoirs in the study area, among which the density of 102 sandstone was the largest. The results show that the sand body has the best development degree, the sandstone density of Yan 103101 is the lowest, and the heterogeneity among the small layers of Yan 10 reservoir is relatively weak.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：P618.13

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 殷瀟;南泥灣油田高含水井區(qū)開(kāi)發(fā)動(dòng)態(tài)分析與評(píng)價(jià)[D];西安石油大學(xué);2017年

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本文編號(hào)：1669054