本文選題：含水易凝原油 + 流變實(shí)驗(yàn)�。� 參考：《東北石油大學(xué)》2015年博士論文

【摘要】：對(duì)高凝、高黏和高含蠟原油,其常規(guī)集油工藝是耗能較高的伴熱工藝。為了節(jié)能降耗,可以在集輸管道中添加流動(dòng)改進(jìn)劑,以改善流動(dòng)特性和降低集輸溫度。本文給出了含水易凝原油在圓管中流動(dòng)特性和流變特性測(cè)量的相關(guān)理論,通過(guò)油田地面集輸管道流動(dòng)和流變特性測(cè)試實(shí)驗(yàn),利用優(yōu)選的流動(dòng)改進(jìn)劑和加劑濃度,進(jìn)行了管道中含水易凝原油加入流動(dòng)改進(jìn)劑后的流動(dòng)特性研究,并將研究成果應(yīng)用于大慶油田現(xiàn)場(chǎng)實(shí)驗(yàn)。首先給出了含水易凝原油在圓管中的流動(dòng)特性分析和流變特性測(cè)量的相關(guān)理論,得到了油水混合物在圓管中層流和紊流兩種流動(dòng)狀態(tài)下流動(dòng)特性規(guī)律,并給出了室內(nèi)細(xì)竹道流動(dòng)和旋轉(zhuǎn)圓筒黏度計(jì)測(cè)得含水易凝原油流變參數(shù)的方法。根據(jù)上述含水易凝原油流變測(cè)量相關(guān)理論對(duì)大慶油田易凝原油和含水易凝原油的流變性進(jìn)行了實(shí)驗(yàn)研究。用流變儀測(cè)量了易凝原油和含水易凝原油的屈服應(yīng)力特性、黏滯特性和觸變特性,得到溫度、剪切速率和含水率對(duì)其屈服值和表觀黏度的影響規(guī)律。根據(jù)加入流動(dòng)改進(jìn)劑后大慶油天含水易凝原油的乳狀液轉(zhuǎn)相點(diǎn)、油珠聚并溫度、凝油黏壁量、流動(dòng)改進(jìn)劑的破乳性能和凝油黏壁溫度等指標(biāo),評(píng)價(jià)DODE系列流動(dòng)改進(jìn)劑的性能,該流動(dòng)改進(jìn)劑可以明顯降低集油溫度。為研究加入流動(dòng)改進(jìn)劑后含水易凝原油的流動(dòng)特性和優(yōu)選加劑濃度,進(jìn)行了加DODE流動(dòng)改進(jìn)劑大慶油田含水易凝原油的室內(nèi)流動(dòng)實(shí)驗(yàn),實(shí)驗(yàn)管道采用三種直徑的圓管,實(shí)驗(yàn)介質(zhì)為含水率30%～90%的大慶油田含水易凝原油,在流動(dòng)改進(jìn)劑不同加入濃度和實(shí)驗(yàn)溫度條件下進(jìn)行流動(dòng)特性實(shí)驗(yàn)。依據(jù)細(xì)管道流動(dòng)特性實(shí)驗(yàn)測(cè)得流變特性的相關(guān)理論,應(yīng)用羅賓諾維奇—莫納(Robinowitsch-Mooney)方程,利用管道流動(dòng)實(shí)驗(yàn)參數(shù)確定加DODE流動(dòng)改進(jìn)劑含水易凝原油的流變性。結(jié)果表明,加流動(dòng)改進(jìn)劑的含水易凝原油為冪律流體,其流性指數(shù)小于1,屬于剪切稀化流體。進(jìn)行加流動(dòng)改進(jìn)劑含水易凝原油停輸再啟動(dòng)的室內(nèi)實(shí)驗(yàn),給出了大慶油田含水易凝原油集輸管道停輸再啟動(dòng)過(guò)程中啟動(dòng)壓力梯度與流動(dòng)改進(jìn)劑加入量、冷凝時(shí)間、原油含水率和管道直徑的相關(guān)規(guī)律。實(shí)驗(yàn)結(jié)果表明,添加流動(dòng)改進(jìn)劑可以明顯降低啟動(dòng)壓力梯度。在大慶油田10個(gè)采油廠,37座轉(zhuǎn)油站上進(jìn)行了加入DODE流動(dòng)改進(jìn)劑現(xiàn)場(chǎng)實(shí)驗(yàn),實(shí)驗(yàn)總油井?dāng)?shù)為2331口。實(shí)驗(yàn)結(jié)果表明,集輸管道中含水易凝原油加入流動(dòng)改進(jìn)劑明顯改善流動(dòng)特性,降低油井摻水溫度和回油溫度,應(yīng)用期間集油系統(tǒng)的平均輸送噸油耗氣量大幅度下降,節(jié)能降耗效果明顯。
[Abstract]:For high coagulability, high viscosity and high waxy crude oil, the conventional oil gathering process is a heat tracing process with high energy consumption. In order to save energy and reduce consumption, the flow improver can be added to the gathering pipeline to improve the flow characteristics and reduce the gathering temperature. In this paper, the theory of measuring the flow and rheological characteristics of water-containing and easily condensed crude oil in circular pipes is presented. Through the experiments of flow and rheological characteristics of oil field surface gathering and transportation pipeline, the optimal flow improver and concentration of additive are used. The flow characteristics of easily coagulable crude oil with water cut in pipeline were studied after adding flow improver, and the results were applied to the field experiment of Yu Daqing oilfield. Firstly, the flow characteristic analysis and rheological characteristics measurement of water-soluble crude oil in circular pipe are presented. The flow characteristics of oil-water mixture in laminar flow and turbulent flow in circular pipe are obtained. The rheological parameters of porous crude oil with water content and easy to coagulate are obtained by measuring the flow of fine bamboo channel and the viscosity of rotating cylinder. Based on the rheological measurement theory, rheological properties of easily condensable crude oil and water-cut crude oil in Daqing oilfield are studied experimentally. The yield stress, viscosity and thixotropic properties of easily coagulable crude oil and water-bearing crude oil were measured by rheometer. The effects of temperature, shear rate and water content on yield value and apparent viscosity were obtained. The properties of DODE series flow improvers were evaluated according to the emulsion phase transition point of Daqing oil with water cut and easily coagulable crude oil after the addition of flow improver, the aggregation temperature of oil beads, the amount of condensed oil viscosity wall, the demulsification performance of flow improver and the viscosity wall temperature of condensing oil. The flow improver can obviously reduce the temperature of oil collector. In order to study the flow characteristics and concentration of water-soluble easily coagulant crude oil after adding flow improver, the laboratory flow experiment of water-cut easily coagulable crude oil in Daqing oilfield with DODE flow improver was carried out. The experimental medium is 30% water cut and 90% water cut crude oil in Daqing Oilfield. The flow characteristics of the crude oil are tested under the conditions of different concentration of flow improver and experimental temperature. Based on the theory of rheological properties measured by the flow characteristics experiment of fine pipes, the rheological properties of crude oil with DODE flow improver were determined by using Robinowitsch-Mooneyy equation and the experimental parameters of pipeline flow. The results show that the water-bearing crude oil with flow improver is a power law fluid, and its flowability index is less than 1, which is a shear-thinning fluid. The laboratory experiment of stopping and restarting of crude oil with water cut and easy coagulant with flow improver was carried out, and the starting pressure gradient, the amount of flow improver and the time of condensing during the shutdown and restarting process of gathering and transporting pipeline of water cut and easy coagulable crude oil in Daqing Oilfield were given. Correlation between water cut of crude oil and diameter of pipeline. The experimental results show that the starting pressure gradient can be significantly reduced by adding flow improver. The field experiment of adding DODE flow improver to 37 transfer stations in 10 oil production plants of Daqing Oilfield was carried out. The total number of oil wells was 2331. The experimental results show that the addition of water-containing and easily condensable crude oil to flow improver can obviously improve the flow characteristics and reduce the water and return temperature of oil wells. During the application, the average gas consumption of the oil gathering system per ton of oil is greatly reduced. The effect of saving energy and reducing consumption is obvious.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TE832

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 呂涯;邢付雷;翁惠新;;柴油流動(dòng)改進(jìn)劑作用機(jī)理的探究[J];石油煉制與化工;2005年08期

2 許濤;;柴油低溫流動(dòng)改進(jìn)劑綜述[J];貴州化工;2008年05期

3 劉凡;;國(guó)內(nèi)外原油流動(dòng)改進(jìn)劑的實(shí)用研究概況[J];油田化學(xué);1985年01期

4 李炯;張帆;張衍禮;;馬惠寧管輸原油添加流動(dòng)改進(jìn)劑試驗(yàn)研究[J];油田化學(xué);1989年01期

5 張富強(qiáng);王萬(wàn)里;;柴油低溫流動(dòng)改進(jìn)劑在油品調(diào)和上的應(yīng)用[J];河南化工;2013年15期

6 呂涯,談兵,嚴(yán)正澤;影響柴油低溫流動(dòng)改進(jìn)劑作用的因素[J];華東理工大學(xué)學(xué)報(bào);2001年06期

7 陳衛(wèi)紅,王國(guó)良,鄧先梁,吳辰捷,張凡;柴油低溫流動(dòng)改進(jìn)劑的研究——國(guó)外添加劑適應(yīng)性的研究[J];天然氣與石油;2001年03期

8 張崢,嚴(yán)正澤,呂涯,翁惠新,宮偉軍,徐文清;新型柴油低溫流動(dòng)改進(jìn)劑的研究[J];華東理工大學(xué)學(xué)報(bào);2002年01期

9 呂涯,袁小軍,翁惠新;柴油對(duì)流動(dòng)改進(jìn)劑感受性差異的原因表征與分析[J];燃料化學(xué)學(xué)報(bào);2005年03期

10 楊現(xiàn)玲,韓仁暉;原油流動(dòng)改進(jìn)劑在油田中的應(yīng)用[J];節(jié)能技術(shù);1998年04期

相關(guān)會(huì)議論文 前4條

1 袁勇;;柴油低溫流動(dòng)改進(jìn)劑在調(diào)和-10#柴油中的應(yīng)用[A];蘇、冀、皖、贛、鄂石油學(xué)會(huì)第22屆學(xué)術(shù)年會(huì)論文集[C];2004年

2 宋玉萍;楊紅玲;;新型丙烯酸酯類(lèi)柴油低溫流動(dòng)改進(jìn)劑構(gòu)效關(guān)系的研究[A];中國(guó)化工學(xué)會(huì)2005年石油化工學(xué)術(shù)年會(huì)論文集[C];2005年

3 王進(jìn);范時(shí)俊;涂健;景振禹;賈瑞盤(pán);;柴油低溫流動(dòng)改進(jìn)劑的一種新的合成方法[A];第三屆丙烯酸科技發(fā)展與應(yīng)用研討會(huì)論文集[C];1996年

4 張建民;江成明;張彥臣;;流動(dòng)改進(jìn)劑在薩北油田北部過(guò)渡帶現(xiàn)場(chǎng)試驗(yàn)[A];中華教育理論與實(shí)踐科研論文成果選編（第2卷）[C];2010年

相關(guān)重要報(bào)紙文章 前4條

1 浙江大學(xué) 陳安國(guó)教授;“放心肉”生產(chǎn)與安全型肉質(zhì)改進(jìn)劑的應(yīng)用[N];中國(guó)畜牧報(bào);2004年

2 浙江大學(xué) 陳安國(guó)教授;“放心肉”生產(chǎn)與安全型肉質(zhì)改進(jìn)劑的應(yīng)用[N];中國(guó)畜牧報(bào);2004年

3 饒興鶴;歐盟：MTBE不構(gòu)成健康威脅[N];中國(guó)化工報(bào);2007年

4 張軍 孫新國(guó);YG－1801柴油安定性改進(jìn)劑[N];中國(guó)石化報(bào);2003年

相關(guān)博士學(xué)位論文 前1條

1 韓雪松;集輸管道中含水易凝原油加入流動(dòng)改進(jìn)劑后的流動(dòng)特性[D];東北石油大學(xué);2015年

相關(guān)碩士學(xué)位論文 前10條

1 王鵬;新型柴油六烷值改進(jìn)劑的合成[D];青島科技大學(xué);2015年

2 李蕊;動(dòng)改進(jìn)劑在抽油機(jī)井免清蠟及地面集輸過(guò)程中的應(yīng)用[D];東北石油大學(xué);2016年

3 杜道林;柴油低溫流動(dòng)改進(jìn)劑的應(yīng)用研究[D];天津大學(xué);2004年

4 呂志敏;新型柴油低溫流動(dòng)改進(jìn)劑的實(shí)驗(yàn)研究[D];北京交通大學(xué);2006年

5 董峰;改進(jìn)劑在抽油機(jī)井上的應(yīng)用[D];大慶石油學(xué)院;2009年

6 劉秀梅;新型柴油流動(dòng)改進(jìn)劑的開(kāi)發(fā)研制[D];遼寧師范大學(xué);2004年

7 楊智勇;柴油低溫流動(dòng)改進(jìn)劑的制備和應(yīng)用研究[D];天津大學(xué);2005年

8 西曉麗;大慶柴油冷濾性能改進(jìn)劑的研制[D];大慶石油學(xué)院;2005年

9 楊新華;柴油低溫流動(dòng)改進(jìn)劑的合成及其性能研究[D];新疆大學(xué);2006年

10 王晶晶;柴油低溫流動(dòng)改進(jìn)劑的合成及性能研究[D];新疆大學(xué);2007年

，

本文編號(hào)：1784841