本文關(guān)鍵詞：偏心條件下水泥漿二界面的切應(yīng)力和膠結(jié)強(qiáng)度的研究及應(yīng)用　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 水泥漿 偏心環(huán)空 二界面 切應(yīng)力數(shù)值計(jì)算 膠結(jié)強(qiáng)度室內(nèi)實(shí)驗(yàn)

【摘要】：在石油完井過(guò)程中,二界面的封固質(zhì)量關(guān)系著油井的使用壽命、壓裂施工和采油效率,而不同偏心度下的二界面水泥漿沖刷能力和膠結(jié)強(qiáng)度是影響二界面整體膠結(jié)質(zhì)量的兩個(gè)重要因素,因此開(kāi)展針對(duì)不同偏心度水泥漿二界面切應(yīng)力的數(shù)值計(jì)算和膠結(jié)強(qiáng)度的實(shí)驗(yàn)研究,對(duì)于油田優(yōu)選水泥漿體系,提高固井質(zhì)量,具有工程實(shí)際意義。在水泥漿偏心環(huán)空中層流流動(dòng)控制方程的基礎(chǔ)上,給出了偏心條件下水泥漿二界面切應(yīng)力的計(jì)算公式及相應(yīng)的數(shù)值計(jì)算方法。以吉林油田韌性、微膨脹、防竄三種水泥漿為例,數(shù)值計(jì)算了不同偏心度下上述三種水泥漿二界面切應(yīng)力,通過(guò)切應(yīng)力的分析,評(píng)價(jià)了上述三種水泥漿的井眼凈化能力。用自制的天然砂巖井眼模型,進(jìn)行了偏心條件下水泥漿二界面膠結(jié)強(qiáng)度室內(nèi)實(shí)驗(yàn),并通過(guò)實(shí)驗(yàn)結(jié)果分析,評(píng)價(jià)了上述三種水泥漿二界面整體膠結(jié)強(qiáng)度。通過(guò)偏心條件下上述三種水泥漿二界面切應(yīng)力的數(shù)值計(jì)算和膠結(jié)強(qiáng)度的室內(nèi)實(shí)驗(yàn)結(jié)果分析和評(píng)價(jià),實(shí)現(xiàn)了上述三種水泥漿的優(yōu)選,其優(yōu)選次序分別為微膨脹、防竄、韌性水泥漿。
[Abstract]:In the process of oil completion, the sealing quality of the two interfaces is related to the service life of the well, the fracturing operation and the oil recovery efficiency. At different eccentricity, the two interface cement slurry scouring ability and cementing strength are two important factors that affect the quality of the two interface integral cementing. Therefore, the numerical calculation of the shear stress at the second interface of the cement slurry with different eccentricity and the experimental study of the cementing strength are carried out to improve the cementing quality for the selected cement slurry system in the oilfield. Based on the governing equation of laminar flow in eccentric annulus of cement slurry. The calculation formula of shear stress at the second interface of cement slurry under eccentric condition and the corresponding numerical calculation method are given. Taking three kinds of cement slurry in Jilin Oilfield as examples: toughness, micro-expansion and anti-channeling. Through the analysis of shear stress, the borehole purification ability of the three kinds of cement slurry is evaluated. The self-made natural sandstone wellbore model is used to calculate the shear stress of the three kinds of cement slurry with different eccentricity. The cementing strength of cement slurry with two interfaces was tested in laboratory under eccentric condition, and the results were analyzed. The overall cementing strength of the two interfaces of the three kinds of cement slurry is evaluated. The numerical calculation of the shear stress at the two interfaces of the three kinds of cement slurry under eccentric conditions and the analysis and evaluation of the experimental results of the cementing strength in laboratory are carried out. The optimal selection of the three kinds of cement slurry mentioned above is realized, and the optimal selection order is micro-expansion, anti-channeling and ductile cement slurry respectively.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE256

【參考文獻(xiàn)】

中國(guó)期刊全文數(shù)據(jù)庫(kù) 前1條

1 賀成才;冪律流體在偏心環(huán)空中流動(dòng)的數(shù)值模擬[J];石油學(xué)報(bào);2002年06期

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本文編號(hào)：1394814