三轴地应力作用下固井二界面的稳定性

doi:10.7623/syxb2019S2015

石油学报 ›› 2019, Vol. 40 ›› Issue (S2): 152-159.DOI: 10.7623/syxb2019S2015

三轴地应力作用下固井二界面的稳定性

杨浩

中国地质大学(北京)工程技术学院北京 100083

收稿日期:2019-10-08 修回日期:2019-12-11 出版日期:2019-12-25 发布日期:2020-04-24
通讯作者: 杨浩
作者简介:杨浩,男,1978年2月生,2002年获西南石油学院石油工程专业学士学位,2009年获中国石油大学(北京)油气田开发工程专业博士学位,现为中国地质大学(北京)工程技术学院副教授、博士生导师,主要从事钻井、固井、完井、钻井液、增产改造、非常规能源、岩石力学、提高采收率、石油工程测试分析等专业技术研究工作。Email:yanghao@cugb.edu.cn
基金资助:
国家自然科学基金面上项目"高温、高压、低弹性模量复合固井材料研究"（No.51474192）资助。

Stability of cement-formation interfaces under triaxial ground stress

Yang Hao

School of Engineering and Technology, China University of Geosciences, Beijing 100083, China

Received:2019-10-08 Revised:2019-12-11 Online:2019-12-25 Published:2020-04-24

摘要/Abstract

摘要：

目前地层—水泥环—套管组合体稳定性研究主要基于平面，没有考虑组合体三维状态下受三轴地应力作用时组合体固井二界面的稳定；同时测试胶结强度普遍采用压剪切方法，测试数据重复性差。通过建立三维地层—水泥环—套管线弹性组合体模型，研究固井第一界面（水泥环—套管）、第二界面（地层—水泥环）的分离（没有胶结）和不分离（胶结良好）情况下的间距和接触压力，以及分离情况下摩擦力（即压剪切强度）变化及垂直主应力对称、非对称变化对组合体稳定的影响。研究结果可以看出，在接触面光滑、不存在窜流通道的情况下，组合体固井二界面分离后界面存在间距，当窜流压力大于接触压力，固井二界面就发生窜流，且固井第二界面比第一界面更容易窜流。固井二界面的摩擦力对组合体稳定性没有影响；垂直主应力较小时固井二界面的间距较小，但对固井二界面的接触压力没有影响，采用压剪切方法测试胶结强度评价固井二界面稳定性没有意义。因此，固井二界面的防窜主要通过三轴应力施加的接触压力实现；固井二界面的胶结强度相对三轴地应力较低，不起主要防窜作用。

关键词: 固井第一界面, 固井第二界面, 三维, 地层, 水泥环, 套管, 摩擦力, 地应力

Abstract:

Currently, there are mxainly planar-based researches on the stability of formation-cement sheath-casing combination body, without considering the stability of the cement-formation interface of the combination body under triaxial ground stress in the three-dimensional state. Moreover, the cementing strength is generally tested by the method of compressional shear, and the repeatability of test data is poor. Through establishing a three-dimensional model for the linear elastic formation-cement sheath-casing combination body, a study is performed on the spacing and contact pressure in the case of separation (no cementation) and non-separation (good cementation) at the cementing first interface (cement sheath-casing) and the cementing second interface (formation-cement sheath) and the effect of the changes in friction (i.e., compressional shear strength) and the symmetrical and asymmetric changes in the vertical principal stress on the stability of the combination body. The research results show that when the contact surface is smooth and there is no channel for cross flow, a gap exists between the cement-formation interfaces of the combination body after separation. When the pressure of cross flow is greater than the contact pressure, cross flow occurs at the cement-formation interfaces, expecially at the second interface. The friction of the cement-formation interface has no effect on the stability of the combination body. The spacing between the cement-formation interfaces is small when the vertical principal stress is small, but it has no effect on the contact pressure at the cement-formation interface. It is insignificant to evaluate the stability of cement-formation interface using cementation strength tested by the method of compressional shear. Therefore, Anti-channeling at the cement-formation interfaces is mainly achieved by the contact pressure exerted by triaxial stress; the cementation strength of the cement-formation interface is lower than the triaxial ground stress, and it does not play the main role in anti-channeling.

Key words: cementing first interface, cementing second interface, three-dimensional, formation, cement sheath, casing, friction, ground stress

中图分类号:

TE256

杨浩. 三轴地应力作用下固井二界面的稳定性[J]. 石油学报, 2019, 40(S2): 152-159.

Yang Hao. Stability of cement-formation interfaces under triaxial ground stress[J]. Acta Petrolei Sinica, 2019, 40(S2): 152-159.

参考文献

[1] 秦文政.固井二界面关联相相互作用机理研究[D].武汉:中国地质大学,2009.
QIN Wenzheng.Study on interaction mechanism of correlative phases at cement/formation interface[D].Wuhan:China University of Geosciences,2009.
[2] 何吉标.固井二界面泥饼活化机理研究[D].武汉:中国地质大学,2014.
HE Jibiao.Research on activation mechanism of mud cake at cement-formation interface[D].Wuhan:China University of Geosciences,2014.
[3] 刘浩亚.固井二界面水泥浆泥饼胶结网络结构作用机制研究[D].武汉:中国地质大学,2012.
LIU Haoya.Study on mechanism of network structure of cementation at cement-formation interface[D].Wuhan:China University of Geosciences,2012.
[4] 聂臻.水泥环密封失效机理研究及应用[D].北京:中国地质大学,2011.
NIE Zhen.Research and application for cement sheath isolation failure mechanism[D].Beijing:China University of Geosciences,2011.
[5] 徐璧华,卢翔,谢应权.高温高压下油井水泥环胶结强度测试新方法[J].天然气工业,2016,36(11):65-69.
XU Bihua,LU Xiang,XIE Yingquan.A new bonding strength measurement method for oil well cement sheath under high temperatures and high pressures[J].Natural Gas Industry,2016,36(11):65-69.
[6] 唐世忠,董云龙,王海滨,等.固井水泥界面胶结强度评价技术及在沈家铺油田的应用[J].石油地质与工程,2016,30(5):100-103.
TANG Shizhong,DONG Yunlong,WANG Haibin,et al.Cementing strength evaluation technology of cementing cement interface and its application in Shenjiapu oilfield[J].Petroleum Geology and Engineering,2016,30(5):100-103.
[7] 刘健,郭小阳,李早元.储气库固井水泥石关键力学参数测试方法研究[J].西南石油大学学报:自然科学版,2013,35(6):115-121.
LIU Jian,GUO Xiaoyang,LI Zaoyuan.Study of the test method of key mechanical parameters of set cement in the gas storage well[J].Journal of Southwest Petroleum University:Science & Technology Edition,2013,35(6):115-121.
[8] 初纬,沈吉云,杨云飞,等.连续变化内压下套管-水泥环-围岩组合体微环隙计算[J].石油勘探与开发,2015,42(3):379-385.
CHU Wei,SHEN Jiyun,YANG Yunfei,et al.Calculation of micro-annulus size in casing-cement sheath-formation system under continuous internal casing pressure change[J].Petroleum Exploration and Development,2015,42(3):379-385.
[9] PATTERSON D,INGRAM S,MATUSZYK P J,et al.Enhanced cement bond evaluation in thick casing utilizing guided acoustic modes generated by electromagnetic acoustic transducers[R].OTC 27968,2017.
[10] HEATHMAN J,FULLER G,TAYLOR R,et al.Development of nanotechnology pipe treatment to improve acoustic cement evaluation[R].OTC 27893,2017.
[11] CAI Jun,GAO Yongde,ZHANG Mingjie,et al.Solution to cement integrity evaluation in long extended reach wells:new record in South China Sea[R].OTC 25027,2014.
[12] ALBAWI A,DE ANDRADE J,TORSÆTER M,et al.Experimental set-up for testing cement sheath integrity in arctic wells[R].OTC 24587,2014.
[13] ACOSTA J,BARROSO M,MANDAL B,et al.New-generation,circumferential ultrasonic cement-evaluation tool for thick casings:case study in ultradeepwater well[R].OTC 28062,2017.
[14] GARNIER A,SAINT-MARC J,BOIS A P.An innovative methodology for designing cement-sheath integrity exposed to steam stimulation[J].SPE Drilling & Completion,2010,25(10):58-69.
[15] MIERSEMANN U,ARCHINA P,PRINET C,et al.Improved stress-anisotropy characterization through casing in a 42-year-old well using sonic and cement/borehole imaging data[R].SPE 139515,2010.
[16] OPEDAL N,TODOROVIC J,TORSAETER M,et al.Experimental study on the cement-formation bonding[R].SPE 168138,2014.
[17] THOMAS S J,SMITH C,WILLIAMS B W,et al.Ultrasonic log response in lightweight cement conditions[R].SPE 171612,2014.
[18] TIMONIN A,LUNGERSHAUSEN D,KRAVETS P.Microannulus and cement evaluation:effectiveness of cement evaluation using sonic and ultrasonic technologies in wells with microannulus between casing and cement sheath[R].SPE 172309,2014.
[19] CONTRAIRES S,LOIZZO M,LECAMPION B,et al.Long-term well bore integrity in Otway:integrating ultrasonic logs,cement petrophysics,and mechanical analysis[J].Energy Procedia,2009,1(1):3545-3552.
[20] NAIR S D,PATZEK T W,VAN OORT E.Detecting poor cement bonding and zonal isolation problems using magnetic cement slurries[R].SPE 187047,2017.
[21] CARTER L G,EVANS G W.A study of cement-pipe bonding[J].Journal of Petroleum Technology,1964,16(2):157-160.
[22] 郭辛阳,步玉环,沈忠厚,等.井下复杂温度条件对固井界面胶结强度的影响[J].石油学报,2010,31(5):834-837.
GUO Xinyang,BU Yuhuan,SHEN Zhonghou,et al.The effect of downhole complex temperature conditions on the interfacial bonding strength in cementing[J].Acta Petrolei Sinica,2010,31(5):834-837.
[23] 李早元,柳洪华,郭小阳,等.套管表面润湿性对固井界面胶结强度的影响[J].油田化学,2016,33(1):20-24.
LI Zaoyuan,LIU Honghua,GUO Xiaoyang,et al.Effects of casing surface wetting on interfacial bonding strength of cement[J].Oilfield Chemistry,2016,33(1):20-24.
[24] 赵宝辉,高永会,谭文礼.影响水泥环第二界面胶结质量的因素分析[J].钻采工艺,2009,32(5):16-18.
ZHAO Baohui,GAO Yonghui,TAN Wenli.Analysis of the influence factors on bonding quality of the second cementing interface[J].Drilling & Production Technology,2009,32(5):16-18.
[25] 杨丹.影响套管水泥环界面胶结性能的因素研究[D].成都:西南石油大学,2014.
YANG Dan.Factors affecting the cementation performance of casing cement ring interface[D].Chengdu:Southwest Petroleum University,2014.
[26] 吕斌.黏弹性固井封隔材料的室内研究[J].钻井液与完井液,2015,32(1):60-64.
LV Bin.Laboratory study of viscoelastic isolation additive for use in oil well cementing[J].Drilling Fluid & Completion Fluid,2015,32(1):60-64.

三轴地应力作用下固井二界面的稳定性

Stability of cement-formation interfaces under triaxial ground stress

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	狄勤丰, 王楠, 陈锋, 陈涛, 王文昌, 陈薇. 磨损套管螺纹接头密封面力学特性[J]. 石油学报, 2021, 42(5): 669-676.
[2]	张磊, 王永科, 倪军, 乔向阳, 辛翠平, 张涛, 康宇龙, 石军太, 吴克柳. 气藏平均地层压力跟踪计算新方法[J]. 石油学报, 2021, 42(4): 492-499,522.
[3]	杨海军, 李勇, 唐雁刚, 雷刚林, 周鹏, 周露, 许安明, 郇志鹏, 朱文慧, 陈维力, 胡春雷, 杨敬博. 塔里木盆地克深气田成藏条件及勘探开发关键技术[J]. 石油学报, 2021, 42(3): 399-414.
[4]	印森林, 高阳, 胡张明, 熊亭, 冯文杰, 赵俊威, 程乐利. 基于无人机倾斜摄影的露头多点地质统计模拟——以山西吕梁坪头乡石盒子组为例[J]. 石油学报, 2021, 42(2): 198-216.
[5]	洪迪峰, 唐雪平, 高文凯, 吕海川. 圆弧型井眼轨道设计模型的综合求解法[J]. 石油学报, 2021, 42(2): 226-232.
[6]	李勇, 纪宏飞, 邢鹏举, 苏义脑, 刘硕琼, 魏风奇. 气井井筒温度场及温度应力场的理论解[J]. 石油学报, 2021, 42(1): 84-94.
[7]	胡婧, 郭辽原, 孙刚正, 吴晓玲, 宋永亭, 林军章, 汪卫东, 曹嫣镔, 王增林. 动态驱替内源微生物生长代谢与驱油效率关系[J]. 石油学报, 2020, 41(9): 1127-1134.
[8]	高建申, 宋阳, 刘彦萍, 朱凯然, 刘昕. 低电阻率地层基于凹陷电极对的油基泥浆电成像测井四参数计算方法[J]. 石油学报, 2020, 41(8): 960-968.
[9]	王千, 杨胜来, 拜杰, 钱坤, 李佳峻. 非均质多层储层中CO₂驱替方式对驱油效果及储层伤害的影响[J]. 石油学报, 2020, 41(7): 875-884,902.
[10]	陈雪莲, 唐晓明. 套管中周向传播准SH波的传播特征[J]. 石油学报, 2020, 41(7): 895-902.
[11]	聂海宽, 李东晖, 姜涛, 颜彩娜, 杜伟, 张光荣. 基于笔石带特征的页岩等时地层测井划分方法及意义——以四川盆地及其周缘五峰组—龙马溪组为例[J]. 石油学报, 2020, 41(3): 273-283.
[12]	齐宁, 陈国彬, 李振亮, 梁冲, 何龙. 基于分步算法的裂缝性碳酸盐岩油藏大尺度酸化数值模拟[J]. 石油学报, 2020, 41(3): 348-362,371.
[13]	林日亿, 李端, 王新伟, 杨正大, 张立强. 水平井配汽三维物理模拟实验[J]. 石油学报, 2020, 41(12): 1649-1656.
[14]	鲁港, 习伟东, 来建强. 三维圆弧型井眼轨道设计模型的拟解析解[J]. 石油学报, 2020, 41(12): 1679-1685.
[15]	李思亦, 唐晓明, 何娟, 许松, 孙福亭, 苏远大. 基于声波远探测和岩石力学分析的井旁裂缝有效性评价方法[J]. 石油学报, 2020, 41(11): 1388-1395.