本文選題：儲(chǔ)層評(píng)價(jià) + 滲流特征��； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：K95斷塊是華北油田南部區(qū)域的主力油氣生產(chǎn)油藏,在達(dá)到產(chǎn)量高峰后逐漸進(jìn)入高含水開(kāi)發(fā)階段,注水井注水難度大,穩(wěn)產(chǎn)形勢(shì)非常嚴(yán)峻。本文針對(duì)油藏開(kāi)發(fā)過(guò)程中暴露的突出問(wèn)題,深入分析本斷塊地質(zhì)儲(chǔ)層特征、流體物性以及開(kāi)發(fā)歷程與現(xiàn)狀。本文進(jìn)行了儲(chǔ)層滲流特征評(píng)價(jià),完成了儲(chǔ)層巖石的X-射線(xiàn)衍射分析、敏感性評(píng)價(jià)、滲流特征評(píng)價(jià)室內(nèi)實(shí)驗(yàn)和研究工作:7塊樣品的儲(chǔ)層巖石X-衍射和粘土礦物分析實(shí)驗(yàn);15塊樣品的儲(chǔ)層敏感性評(píng)價(jià)(3塊樣品酸敏、3塊樣品水敏、3塊樣品速敏、3塊樣品堿敏和3塊樣品鹽敏實(shí)驗(yàn));儲(chǔ)層滲流特征評(píng)價(jià)(7塊巖樣相滲實(shí)驗(yàn),9塊巖樣水驅(qū)油實(shí)驗(yàn))。儲(chǔ)層屬中低孔低滲儲(chǔ)層,非均質(zhì)性強(qiáng),Ⅱ油組更加嚴(yán)重。儲(chǔ)層表現(xiàn)為強(qiáng)水敏~(yú)極強(qiáng)水敏,強(qiáng)鹽敏~(yú)極強(qiáng)鹽敏,中等偏強(qiáng)酸敏~(yú)強(qiáng)酸敏,中等偏強(qiáng)堿敏~(yú)強(qiáng)堿敏特征,無(wú)速敏。相滲實(shí)驗(yàn)數(shù)據(jù)表明,Ⅰ油組油相滲透率隨含水飽和度的增加下降較快,Ⅰ、Ⅱ油組兩相滲流區(qū)較窄,儲(chǔ)層殘余油飽和度相對(duì)較高。在上述研究的基礎(chǔ)上,開(kāi)展了注采系統(tǒng)的適應(yīng)性研究,主要包括合理注采井?dāng)?shù)比、注采比、合理井距、合理壓力水平及水驅(qū)開(kāi)發(fā)效果評(píng)價(jià)研究。油藏開(kāi)發(fā)初期注采井網(wǎng)能夠滿(mǎn)足油藏開(kāi)發(fā)的需要,大部分油井均見(jiàn)到較好的注水效果。進(jìn)行了措施效果及適應(yīng)性的評(píng)價(jià),包括壓裂、酸化解堵、卡堵水、注水井等措施分析,包括油井和水井的措施適應(yīng)性分析。進(jìn)行了剩余油潛力評(píng)價(jià)研究。經(jīng)過(guò)構(gòu)造精細(xì)解釋與地層對(duì)比,與原構(gòu)造發(fā)生變化,在K95主斷塊高部位、K95-2x井與K95-4x井間具有無(wú)井控制區(qū),具備進(jìn)一步鉆井完善的潛力。K95斷塊構(gòu)造復(fù)雜,經(jīng)過(guò)多年的開(kāi)采過(guò)程之后,地下油水關(guān)系更加復(fù)雜,后備油層少,調(diào)整挖潛難度大,目前油田處于開(kāi)發(fā)中后期,應(yīng)加大油藏動(dòng)態(tài)監(jiān)測(cè)力度,進(jìn)行更為詳細(xì)的地質(zhì)認(rèn)識(shí),以保證油田的高效生產(chǎn)。通過(guò)進(jìn)行儲(chǔ)層滲流特征評(píng)價(jià),研究?jī)?chǔ)層巖石礦物敏感性對(duì)注水、酸化開(kāi)發(fā)的影響,探求注采系統(tǒng)的適應(yīng)性規(guī)律以及保障措施的效果與適應(yīng)性規(guī)律,結(jié)合剩余油潛力找到合理的調(diào)整方案,相關(guān)成果通過(guò)在現(xiàn)場(chǎng)實(shí)施,達(dá)到了減緩遞減、提高油藏開(kāi)發(fā)的效果,有效地指導(dǎo)油田生產(chǎn),并為同類(lèi)型油藏穩(wěn)產(chǎn)、減緩遞減開(kāi)發(fā)提供了借鑒。
[Abstract]:K95 fault block is the main oil and gas production reservoir in the southern region of North China Oilfield. After reaching the peak of production, it has gradually entered the stage of high water cut development, the injection well is difficult to be injected and the stable production situation is very serious. In this paper, the geological reservoir characteristics, fluid physical properties, development history and present situation of the fault block are deeply analyzed in view of the outstanding problems exposed during reservoir development. In this paper, the reservoir percolation characteristics are evaluated, and the X ray diffraction analysis and sensitivity evaluation of the reservoir rock are completed. Laboratory experiment and Research work on percolation characteristics Evaluation of reservoir sensitivity of 15 samples (3 samples, acid sensitive, 3 water sensitive) and clay mineral analysis experiment, X- diffraction of reservoir rocks and clay mineral analysis of 7 samples Alkali sensitivity and salt sensitivity of 3 samples and reservoir percolation characteristics evaluation (7 rock samples and 9 rock samples water flooding experiments). The reservoir is a low porosity and low permeability reservoir with strong heterogeneity and more serious oil group 鈪，

本文編號(hào)：2084536