Determination of the Apparent Viscosity of Oil-Based Drilling Fluid by Using Marsh Funnel Viscosity
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摘要: 为了研究油基钻井液漏斗黏度与表观黏度之间存在的联系，从马氏漏斗黏度计的结构出发，在水基钻井液研究成果的基础上，分析了油基钻井液在马氏漏斗黏度计中的流动规律，研究了利用油基钻井液马氏漏斗黏度预测表观黏度的可行性，推导了流体漏斗黏度计算公式，建立了油基钻井液马氏漏斗黏度与表观黏度函数之间的数学模型，并对该模型分别进行了室内试验和现场试验的验证。试验结果显示，室内和现场计算的表观黏度与实测表观黏度的最大相对误差分别为6.8%和8.2%，均在合理范围内；现场试验中，油水比从70：30增大到91：9，预测结果没有受到影响。研究结果表明，基于马氏漏斗黏度的表观黏度预测模型能够较准确地估测油基钻井液的表观黏度，钻井现场可以利用油基钻井液的马氏漏斗黏度估算其表观黏度，这为现场预测油基钻井液的表观黏度提供了方便。Abstract: To study the relationship between the funnel viscosity and the apparent viscosity of oil-based drilling fluid, the flow patterns of oil-based drilling fluids in the marsh funnel viscometer were analyzed. Based on the structure of the marsh funnel viscometer, research was conducted to determine the possibility of apparent viscosity determination for oil-based drilling fluid by using the marsh funnel viscometer. In addition, the equations for funnel viscosity of fluids were highlighted and mathematic models for marsh funnel and apparent viscosity of oil-based drilling fluids were established. Lab and field tests were performed to verify the accuracy of the newly developed models. Research results showed that the maximum relative errors between the calculated apparent viscosity and the measured apparent viscosity of indoor and field tests were 6.8% and 8.2%, respectively. Both of these errors were in a reasonable range. During field tests, the oil-water ratio was increased from 70/30 to 91/9 with no observable impact on final results. Lab and field test results showed the apparent viscosity of oil-based drilling fluids could be determined accurately by using the newly developed prediction model. In fact, funnel viscosity could be used on the drilling site to facilitate the determination of the apparent viscosity of the oil-based drilling fluid on site.
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[1] PITT M J.The Marsh funnel and drilling fluid viscosity:a new equation for field use[J].SPE Drilling and Completion,2000,15(1):3-6.
[2] 金业权.非牛顿流体漏斗黏度与塑性黏度的实验研究[J].西部探矿工程,2004,16(2):37-38. JIN Yequan.Experimental study of funnel viscosity and plastic viscosity of non-Newtonian fluid[J].West-China Exploration Engineering,2004,16(2):37-38. [3] 杨莉,李家学,刘会锋.钻井液马氏漏斗黏度与表观黏度的关系[J].钻井液与完井液,2012,29(1):12-14. YANG Li,LI Jiaxue,LIU Huifeng.Study on the relationship between Marsh funnel viscosity and apparent viscosity of drilling fluids[J].Drilling Fluid Completion Fluid,2012,29(1):12-14. [4] 刘扣其,邱正松,罗洋,等.应用马氏漏斗测定钻井液流变参数[J].钻井液与完井液,2014,31(5):60-62. LIU Kouqi,QIU Zhengsong,LUO Yang,et al.Measure rheology of drilling fluids with Marsh funnel viscometer[J].Drilling Fluid Completion Fluid,2014,31(5):60-62. [5] 吕开河,高锦屏,孙明波.多元醇钻井液高温流变性研究[J].石油钻探技术,2000,28(6):23-25. LYU Kaihe,GAO Jinping,SUN Mingbo.Study on high temperature rheological properties of polyol drilling fluid[J].Petroleum Drilling Techniques,2000,28(6):23-25. [6] 刘孝良,刘崇建,舒秋贵,等.应用漏斗黏度计测定幂律流体的流变参数[J].天然气工业,2003,23(4):47-50. LIU Xiaoliang,LIU Chongjian,SHU Qiugui,et al.Measuring rheological parameters of power law fluid by funnel viscometer[J].Natural Gas Industry,2003,23(4):47-50. [7] GURIA C,KUMAR R,MISHRA P.Rheological analysis of drilling fluid using Marsh Funnel[J].Journal of Petroleum Science and Engineering,2013,105:62-69.
[8] 汤凤林,加里宁,段隆臣,等.岩心钻探学[M].武汉:中国地质大学出版社,2009:369-370. TANG Fenglin,КАЛИНИН,DUAN Longchen,et al.Core drilling[M].Wuhan:China University of Geosciences Press,2009:369-370. [9] 乌效鸣,胡郁乐,董红梅,等.钻井液与岩土工程浆液实验原理与方法[M].武汉:中国地质大学出版社,2010:24-25. WU Xiaoming,HU Yule,DONG Hongmei,et al.Experimental principle and method of drilling fluid and rock and soil engineering[M].Wuhan:China University of Geosciences Press,2010:24-25. [10] 赵怀珍,薛玉志,李公让,等.抗高温水基钻井液超高温高压流变性研究[J].石油钻探技术,2009,37(1):5-9. ZHAO Huaizhen,XUE Yuzhi,LI Gongrang,et al.Rheological properties of high-temperature water based drilling fluids at high temperature and high pressure[J].Petroleum Drilling Techniques,2009,37(1):5-9. [11] 鄢捷年,李志勇,张金波.深井油基钻井液在高温高压下表观黏度和密度的快速预测方法[J].石油钻探技术,2005,33(5):35-39. YAN Jienian,LI Zhiyong,ZHANG Jinbo.Methods for quickly predicting apparent viscosity and density of oil-based drilling fluids under HTHP conditions[J].Petroleum Drilling Techniques,2005,33(5):35-39. [12] 江延明,李传宪.W/O乳状液的流变性研究[J].油气储运,2000,19(1):10-12,19. JIANG Yanming,LI Chuanxian.Research on rheologieal properties of W/O emulsion[J].Oil Gas Storage and Transportation,2000,19(1):10-12,19. [13] 赵建兴.对原油乳状液黏度变化规律的认识[J].油田地面工程,1985,4(4):15-21. ZHAO Jianxing.Some cognition on viscosity variation rule of crude emulsion[J].Oil-Gas Field Surface Engineering,1985,4(4):15-21.
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