The Influence Law of Shear Rate on the Thickening Time of Cement Slurry
-
摘要: 剪切速率对水泥浆稠化时间的影响比较大，确定水泥浆真实的稠化时间能够保障固井安全。引用水泥浆在井眼内和室内稠化试验2种状态下的剪切速率数学模型，根据水泥浆在不同剪切速率下的稠化试验结果（30和80℃），分析剪切速率对水泥浆稠化时间的影响规律。30℃时，在22~652/s的剪切速率范围内，稠化时间偏差超过2 h，剪切速率低时稠化时间短；80℃时，在177~885/s的剪切速率范围内，稠化时间偏差在1 h内，剪切速率高时稠化时间短。研究结果表明，选用150 r/min的转速进行稠化试验，能较好地模拟大多数固井情况下的稠化时间，但对于大直径表层套管固井和小间隙固井，应根据实际情况选用合适的剪切速率进行水泥浆稠化试验，才能模拟固井施工时的稠化时间，确保固井施工的安全。Abstract: Shear rate is an important influence on the thickening time of cement slurry, and the determination of the real thickening time is significant for safety in cementing engineering. By establishing mathematical models for the shear rate of cement slurry under two thickening statuses in the borehole and in the lab, the thickening test was conducted under different shear rates (at 30℃ and 80℃) to identify the influence law of shearing rate on the thickening time of cement slurry. At 30℃, the deviation of thickening time is more than 2 h with shear rate of 22-652/s, and the thickening time is shorter at a low shear rate. At 80℃, the deviation of thickening time is less than 1 h with shear rates of 177-885/s, and the thickening time is shorter at a high shear rate. Research results showed that the thickening test at a rotation speed of 150 r/min could effectively simulate the thickening time in most cementing operations. As for cementing operations involving large-sized surface casing and small annulus, suitable shear rates should be used in accordance with specific conditions to perform thickening tests of cement slurry, so as to determine the thickening time in cementing operations accurately and ensure the safety of cementing operations.
-
Keywords:
- cementing /
- shear rate /
- cement slurry /
- thickening time
-
-
[1] 夏村.石油勘查系统固井工程现状分析及对策建议[J].石油钻探技术,1994,22(4):52-55. XIA Cun.Current situation analysis and countermeasures of well cementing in oil exploration system[J].Petroleum Drilling Techniques,1994,22(4):52-55. [2] 何世明,刘崇建,黄桢,等.温度与压力对水泥浆稠化时间的影响规律[J].钻井液与完井液,1999,16(2):22-24. HE Shiming,LIU Chongjian,HUANG Zhen,et al.Influence pattern of temperature and pressure on cement slurry thickening time[J].Drilling Fluid & Completion Fluid,1999,16(2):22-24. [3] ORBAN J A,PARCEVAUX P A,GUILOT D J.Specific mixing energy:a key factor for cement slurry quality[R].SPE 15578,1986.
[4] VIDICK B.Critical mixing parameters for control of cement slurryqualit[J].SPE 18895,1989.
[5] 安本清,于玲玲,豆宁辉,等.沙特B区块固井水泥浆提前稠化规律探讨[J].石油钻探技术,2010,38(5):56-59. AN Benqing,YU Lingling,DOU Ninghui,et al.Investigation of cement slurry thickening in advance in Block B of Saudi Arabia[J].Petroleum Drilling Techniques,2010,38(5):56-59. [6] KWELLE S O,MOFUNLEWI S S.The effect of mixing energy and shear rate on the thickening time of cement slurry[J].Leonardo Journal of Sciences,2008,7(13):78-89.
[7] PURVIS D L,MUELLER D T,DAWSON J C,et al.Thickening time test apparatus provides method of simulation actual shear rate history ofoilwell cements[R].SPE 26576,1993.
[8] PURVIS D L,CLERGY J S.Eliminating the unknowns of primary cementing with on-site verification and post-job analysis[R].SPE 23991,1992.
[9] REED T D,PILEHAVRI A A.A new model for laminar,transitional,and turbulent flow of drilling muds[R].SPE 25456,1993.
[10] ISO 10426-1:2009 Petroleum and natural gas industries:cements and materials for well cementing:specification[S].
[11] KEMBLOWSKI Z,SÈK J,BUDZYŃSKI P.The concept of a rotational rheometer with helical screw impeller[J].Rheologica Acta,1988,27(1):82-91.
[12] LORD D L.Helical screwrheometer:A new tool for stimulation fluid evaluation[R].SPE 182131988.
[13] GB/T 19139-2012油井水泥试验方法[S]. GB/T 19139-2012 Testing of well cements[S]. -
期刊类型引用(8)
1. 陈允禄，李玮健，冯伟风. 净浆搅拌转速对混凝土性能的影响. 建材世界. 2024(01): 30-33 . 
百度学术
2. 蒋祥光，许明标. 纳米氧化铝对油井水泥基复合材料力学性能的影响. 当代化工. 2023(05): 1252-1255 . 百度学术
3. 唐凯，陈小荣，李志宏. 表层套管固井低剪切速率对水泥浆性能的影响——以厄瓜多尔安第斯区块为例. 石油地质与工程. 2023(06): 85-89+96 . 百度学术
4. 宋建建，许明标，王晓亮，张敏，胡顺，杜佳琪. 胶乳粉固井水泥浆体系研究与应用. 油田化学. 2021(03): 406-411 . 百度学术
5. 徐力群，张兴国，王银东，金也，丁辉，刘增，刘开强，郭小阳. 低返速固井对油井水泥浆性能的影响. 钻井液与完井液. 2019(01): 70-76 . 百度学术
6. 寇云鹏，齐兆军，宋泽普，杜加法，杨纪光. 全尾砂高浓度充填料浆流变特性试验研究. 矿业研究与开发. 2018(12): 32-35 . 百度学术
7. 李建山. 泾河油田水平井固井难点与对策研究. 石油钻探技术. 2017(06): 19-23 . 本站查看
8. 刘振通，党冬红，和建勇，王莹，宋元洪，郭文猛，张玉鹏，王洪峰. 委内瑞拉低压高渗漏地层小间隙尾管固井技术. 钻井液与完井液. 2017(06): 83-88 . 百度学术
其他类型引用(5)
计量
- 文章访问数: 8515
- HTML全文浏览量: 116
- PDF下载量: 13254
- 被引次数: 13
下载:
