深水固井液体减轻低密度水泥浆体系

冯颖韬; 宋茂林; 张浩; 李厚铭

doi:10.3969/j.issn.1001-5620.2017.04.015

深水固井液体减轻低密度水泥浆体系

doi: 10.3969/j.issn.1001-5620.2017.04.015

中海油田服务股份有限公司油田化学研究院, 河北燕郊 065201

详细信息

作者简介:
冯颖韬,工程师,硕士,1986年生,毕业于西南石油大学石油与天然气工程,现在从事固井技术研究工作。电话15075694569;E-mail:fengyt@cosl.com.cn。

中图分类号: TE256
计量
- 文章访问数: 734
- HTML全文浏览量: 210
- PDF下载量: 140
- 被引次数: 0
出版历程
- 收稿日期: 2017-02-11
- 刊出日期: 2017-07-31

Liquid Cementing Fluid Reduced Lightened Deep Water Light-weight Cement Slurry

Oilfield Chemistry R & D Institute, COSL, Yanjiao, Sanhe, Hebei 065201

摘要

摘要: 与传统的表层固井技术不同，深水表层固井由于受到深水环境和现场条件限制，对固井作业提出了新的要求。针对深水表层固井的难点，开发了一种新型液体减轻剂PC-P81L，并以其为主体构建出了深水固井液体减轻低密度水泥浆体系。室内实验结果表明，PC-P81L作为减轻剂对水泥浆具有密度调节作用，可在1.30~1.70 g/cm³之间调节水泥浆密度；具有高悬浮性，最高可悬浮水灰比为2的水泥浆；具有增强作用，还可以应用于常规密度水泥浆中作为增强剂；具有促凝作用，可在深水低温环境下缩短水泥浆稠化时间。构建的深水固井用液体减轻低密度水泥浆体系，通过增大水灰比降低水泥浆密度，提高了水泥浆的造浆率，减少现场水泥用量；且配方简单，易于调节，外加剂以全液体形式添加，减小了现场工作人员的劳动强度；同时满足深水低温环境下的水泥浆性能要求，为下部钻进提高保障；液体减轻水泥浆体系作业成本较漂珠体系也大幅度降低，满足深水低温条件的性能要求，可适用于深水表层固井。
- 深水 /
- 表层固井 /
- 低密度水泥浆 /
- 液体减轻剂
Abstract: Contrary to the surface hole cementing operation, deep water surface hole cementing imposes new requirements on well cementing operation because of the deep water environment and the operation condition. A new liquid light weight agent PC-P81L has been developed for use in cementing the surface hole in deep water drilling, and a cementing fluid was formulated with PC-P81L. Laboratory experimental results showed that PC-P81L can be used to adjust the density of cement slurry between 1.30 g/cm³ and 1.70 g/cm³. PC-P81L has strong suspending capacity; it can suspend cement slurries with water/cement ratio of 2. PC-P81L is not only a light weight agent, it is also a strength enhancer in cement slurries with conventional densities. PC-P81L can accelerate the setting of cement slurry in deep water low temperature environment. By increasing the water/cement ratio, the density of the deep water low density cement slurry can be reduced, and the yield of the cement slurry increased, thereby reducing the consumption of cement in field application. The formulation of the cement slurry is simple and the properties of the cement slurry are easy to adjust. The additives used are added in liquid form, thereby lightening the field labor intensity. The use of the cement slurry has satisfied the needs for deep water low temperature operation, providing insurance for drilling the deeper formation. Compared with hollow microsphere, the operation cost of the light weight cement slurry is quite lower.
- Deep water /
- Surface casing cementing /
- Low density cement slurry /
- Liquid light weight agent

HTML全文

参考文献(8)

[1]	席方柱,屈建省,吕光明,等. 深水低温固井水泥浆的研究[J]. 石油钻采工艺,2010,32(1):40-44. XI Fangzhu,QU Jiansheng,LYU Guangming,et al. Study of deepwater low-temperature cement slurry[J]. Oil Drilling & Production Technology,2010,32(1):40-44.
[2]	王瑞和,王成文,步玉环,等. 深水固井技术研究进展[J]. 中国石油大学学报,2008,32(1):77-81. WANG Ruihe,WANG Chengwen,BU Yuhuan, et al. Research development of deepwater cementing technique[J]. Joumal of China University of Petroleum, 2008,32(1):77-81.
[3]	罗杨,陈大钧,许桂莉,等. 高强度超低密度水泥浆体系实验研究[J]. 石油钻探技术,2009,37(5):66-71. LUO Yang,CHEN Dajun,XU Guili,et al. Lab experriment on high-intensity ultra-low-density cement slurry[J].Petroleum Drilling Techniques,2009,37(5):66-71.
[4]	DROCHON B. Rheology modifier for cement slurries:U.S. Patent 7896076[P]. 2011-3-1.
[5]	符军放, 张浩, 项先忠, 等. 硅溶胶在固井水泥浆中的应用性能研究[J]. 西安石油大学学报,2013,28(3):78-82. FU Junfang,ZHANG Hao,XIANG Xianzhong,et al. Study on the performance of colloidal silica for cementing slurry[J]. Joumal of Xi'an Shiyou University,2013,28(3):78-82.
[6]	刘景丽,郝惠军,李秀妹,等. 油井水泥降失水剂接枝改性聚乙烯醇的研究[J]. 钻井液与完与液,2014, 31(5):78-80. LIU Jingli,HAO Huijun,LI Xiumei,et al. Research on oil well fluid loss agent by graft modification of polyvinyl alcohol[J]. Drilling Fluid & Completion Fluid, 2014,31(5):78-80.
[7]	伍勇华,李国新,申富强,等. 无机盐早强剂对高效减水剂与水泥相容性的影响[J]. 四川建筑科学研究, 2006,32(6):166-169. WU Yonghua,LI Guoxin,SHEN Fuqiang,et al. The influence of inorganic salt early strength agent on the compatibility between superplasticizer and cement[J]. Building Science Research of Sichuan,2006,32(6):166-169.
[8]	岳前升,马保国,穆松,等. 偏高岭土及其对油井水泥性能的影响[J]. 钻井液与完与液,2006,23(6):47-49. YUE Qiansheng,MA Baoguo,MU Song,et al. Metakaolin and its influence on performances of oil well cement[J]. Drilling Fluid & Completion Fluid,2006,23(6):47-49.