海上增韧防窜固井水泥浆体系研究及应用

张海山; 王永松; 宫吉泽; 赵军; 张敬涛

doi:10.3969/j.issn.1001-5620.2015.04.016

海上增韧防窜固井水泥浆体系研究及应用

doi: 10.3969/j.issn.1001-5620.2015.04.016

1.
中海石油(中国)有限公司上海分公司,上海
2. 中海油田服务股份有限公司,河北燕郊

基金项目: 中国海洋石油总公司重大科研项目“东海低孔渗油气田勘探开发工程技术研究及应用”(CNOOCKJ125ZDXM07LTD06SH2012)。

详细信息

作者简介:
张海山,教授级高级工程师,1994年毕业于石油大学(北京)油气钻井工程专业获硕士学位,一直从事海上油气勘探开发的钻完井工程技术工作。地址:上海市徐汇区零陵路583号海洋石油大厦2316室;邮政编码200030;E-mail:zhanghsh@cnooc.com.cn。

中图分类号: TE256.6
计量
- 文章访问数: 821
- HTML全文浏览量: 158
- PDF下载量: 270
- 被引次数: 0
出版历程
- 收稿日期: 2015-02-05
- 刊出日期: 2015-07-31

Study and Application of Toughness Enhanced and Anti-Channeling Cement Slurry Used in Offshore Well Cementing

Haiyang Petroleum Building, No. 583 Lingling Lu, Xuhui District, Shanghai 200030, China

摘要

摘要: 针对海上高压低孔渗油气田固井注水泥候凝时气窜、储层压裂后水泥环破裂等问题,经数值模拟分析压裂作业所需水泥石的性能参数,通过加入胶乳、纤维和膨胀剂等材料,降低弹性模量,增加抗拉强度,达到防收缩防产生间隙的目的,研制了海上增韧防窜固井水泥浆体系。室内评价结果表明,该水泥浆体系的密度为1.65～1.85 g/cm³,API 失水量小于50 mL;稠化时间在3～6 h 可调;游离液为0,具有良好的施工性能,满足作业要求。水泥石24 h 抗压强度大于14 MPa;杨氏模量为3～5 GPa;泊松比为0.13～0.20,满足了压裂对水泥石韧性的要求。该体系弹性模量较常规水泥石降低了约50%,抗拉强度提高了10% 左右,增韧防窜性能优良。该体系在东海多口井现场应用,固井质量优良,满足了防气窜和压裂作业的需要。
- 水泥浆 /
- 固井 /
- 防窜 /
- 增韧
Abstract: High pressure offshore wells with low porosity and low permeability reservoirs always encountered gas channeling during wait-on-cementing (WOC) and cement sheath breakdown after fracturing. A new cementing slurry with enhanced toughness and antichanneling capacity was developed to deal with these problems. The preparation of this new cement slurry was based on the numerical analysis of the properties of set cement necessary for fracturing operation, and other improvement such as the use of latex, fiber and expansion agent. The set cement thus had elastic modulus reduced by 50% and tensile strength increased by 10%, and had improved anti-channeling capacity. This cement slurry formulation had been successfully used in well cementing in Donghai block, satisfying the need for gas channeling prevention and fracturing operation.
- Cement slurry /
- Well cementing /
- Anti-channeling /
- Toughness enhancing

HTML全文

参考文献(13)

Zhu Haijin,Qu Jiansheng, Liu Aiping, et al. A new method to evaluate the gas migration for cement slurries[R]. SPE 131052,2010.

Gray K E,Podnos E,Becker E.Finite-element studies of near wellbore region during cementing operations :Part 1[J]. SPE 106998,2009.

郭进忠,罗霄,华苏东,等. 抗冲击防窜水泥浆体系性能研究[J]. 钻井液与完井液,2010,27(4):59-65. Guo Jinzhong, Luo Xiao, Hua Sudong, et al. Study on tough and anti-channeling cement slurry[J]. Drilling Fluid & Completion Fluid,2010,27(4):59-65.

许加星,邹建龙,朱海金,等. 胶乳水泥浆的防气窜性能评价及应用[J]. 钻井液与完井液,2010,28(S0):20-22. Xu Jiaxing, Zou Jianlong, Zhu Haijin, et al. Anti-migration evaluation and application of latex cement slurry[J]. Drilling Fluid & Completion Fluid,2010,28(S0):20-22.

聂臻. 水泥环密封失效机理研究及应用[D]. 中国地质大学,2011. Nie Zhen. Research and application on failure of cement sheath seal[D].China University of Geosciences,2011.

齐奉忠,杨成颉,刘子帅. 提高复杂油气井固井质量技术研究-保证水泥环长期密封性的技术措施[J]. 石油科技论坛,2013(1):21-22. Qi Fengzhong, Yang Chengjie, Liu Zishuai. Improve cementing quality of complicated oil and gas wells-ensure long-term sealing performance of cement sheath[J].Oil Forum,2013(1):21-22.

汪汉花, 高莉莉. 固井水泥石力学性能研究现状浅析[J]. 西部探矿工程,2010(4):70-74. Wang Hanhua, Gao Lili.Analysis of present situation of study on mechanic property of set cement[J].West-China Exploration Engineering, 2010(4):70-74.

Fallahzadeh H S, Shadizadeh R S. Modeling the perforation stress profile for analyzing hydraulic fracture initiation in a cased hole[C]. SPE 136990, 2010.

姚晓. 油井水泥膨胀剂研究(Ⅱ)——膨胀机理及影响因素[J]. 钻井液与完井液,2004,21(5):43-48. Yao Xiao. Study on expandant for oil well cement (Ⅱ): Expanding mechanism[J]. Drilling Fluid & Completion Fluid,2004,21(5):43-48.

赵琥,宋茂林,郭晓军,等,防窜增强剂对深水低温水泥石三轴力学性能的影响[J]. 钻井液与完井液,2012,29 (1):66-68. Zhao Hu, Song Maolin, Guo Xiaojun,et al. Research on effect of anti-channeling enhancer pc-gs12l on triaxial mechanical performances of deepwater cement stone[J]. Drilling Fluid & Completion Fluid, 2012,29(1):66-68.

石油钻井工程专业标准化委员会.《固井作业规程》释义[M]. 北京:石油工业出版社,2009. Petroleum Drilling Engineering Speciality Standardization Commi t t e e .The c ement ing ope r a t ion proc edur e s paraphrase[M]. Beijing :Petroleum industry press,2009.

Williams H, Keese KhatriR D ,Flexible S, et al. Expanding cement system(fecs) successfully provides zonal isolation across marcellus shale gas trends[C]. SPE 149440,2011.

刘崇建. 油气井注水泥理论与应用[M]. 北京:石油工业出版社,2001. Liu Chongjian. Theory and application of oil and gas well cementing[M]. Beijing :Petroleum industry press,2001.

施引文献

资源附件(0)

访问统计