新型油井水泥触变剂的研究与应用

卢海川; 燕平; 刘刚; 王春才; 霍明江; 王海平; 艾尔肯&#183;阿布力米提

doi:10.3969/j.issn.1001-5620.2018.01.017

新型油井水泥触变剂的研究与应用

doi: 10.3969/j.issn.1001-5620.2018.01.017

1. 中国石油海洋工程有限公司渤星公司, 天津 300451;
2. 大港油田井下作业公司, 天津 300283;
3. 中石油新疆油田分公司井控培训中心, 新疆克拉玛依 834000

详细信息

作者简介:
卢海川,毕业于天津大学材料学专业获硕士学位,主要从事固井材料和水泥浆体系的研究。电话(022)66310332;E-mail:luhc@cnpc.com.cn。

中图分类号: TE256.6
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出版历程
- 收稿日期: 2017-10-15
- 刊出日期: 2018-01-30

Study and Application of a Novel Thixotropic Additive for Oil Well Cement

1. CPOE Boxing Engineering Technology Co., Ltd., Tianjin 300451;
2. Dagang Oilfield Downhole Operation Company, Tianjin 300283;
3. Well Control Training Center of PetroChina Xinjiang Oilfield Company, Kelamayi, Xinjiang 834000

摘要

摘要: 常规油井水泥触变剂常存在触变性不够强、影响施工安全、综合性能欠佳等问题。为此，通过将合成聚合物和超细无机材料以2∶3的比例复配，开发出一种新型油井水泥触变剂BCJ-200S，研究了其应用性能。结果表明，该触变剂可显著提高水泥浆触变性，且温度影响小，90℃加入1.5% BCJ-200S后水泥静浆静置10 min的胶凝强度从2.3 Pa增加到61.0 Pa，静置前后的φ₃₀₀读数分别为206和210，再静置10 min胶凝强度为61.3 Pa，其触变结构可逆性良好，对水泥浆稠化、失水、强度等性能没有产生不良影响；其还可改善水泥石的力学性能，增强水泥石抗破坏能力；另外，配伍性研究结果表明，该触变剂具有良好的现场适应性。其在大港油田官38-22油井进行了首次应用，该井采用12 m³触变水泥浆封堵Ng2出水井段，一次封堵成功，最高挤注压力达16 MPa，钻塞后对封堵层试压8 MPa合格，解决了该井出水难题。
- 触变剂 /
- 触变性 /
- 力学性能 /
- 配伍性 /
- 封堵
Abstract: Conventional thixotropic additives used in oil well cement have some shortages such as weak thixotropy and poor overall performance which negatively affecting operation safety. A new thixotropic additive BCJ-200S has been developed to overcome these shortages. BCJ-200S is made of a synthetic polymer and an ultra-fine inorganic powder in a ratio of 2:3. Studies on the performance of BCJ-200S showed that it remarkably improves the thixotropy of oil well cement. A cement slurry treated with 1.5% BCJ-200S had 10 min gel strength increased from 2.3 Pa to 61.0 Pa after standing 10 min. The φ₃₀₀ readings of the cement slurry before and after standing were 206 and 210, respectively. The gel strength of the cement slurry became 61.3 Pa after standing 10 min more. These data indicate that the cement slurry treated with BCJ-200S had good reversible thixotropy, and BCJ-200S did not negatively affect the thickening, filtration and strength performances of the cement slurry. Laboratory studies also showed that BCJ-200S helps improve the mechanical performance of set cement and enhance the resistance of set cement to breaking. BCJ-200S is also well compatible with other commonly used oil well cement additives. BCJ-200S was first used on the well Guan38-22 in Dagang oilfield. The Ng2 water section in the wellbore was sealed off with 12 m³ thixotropic cement slurry successfully on the first try. The maximum squeezing pressure used to pump cement slurry was 16 MPa. After drilling out the cement plug, the wellbore section sealed was pressure tested with 8 MPa, with no leaking. With the use of BCJ-200S, water cut was finally suppressed.
- Thixotropic additive /
- Oil well cement /
- Thixotropy /
- Synthesized polymer /
- Ultra-fine inorganic material

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参考文献(12)

[1]	刘崇建, 刘孝良. 触变性水泥的评价方法及其应用[J]. 天然气工业, 2001, 21(2):56-60. LIU Chongjian, LIU Xiaoliang. Evaluation method of thixotropic cement and its application[J]. Natural Gas Industry, 2001, 21(2):56-60.
[2]	卢海川, 张伟, 熊超, 等. 触变水泥浆体系研究综述[J]. 精细石油化工进展, 2016,17(3):21-26. LU Haichuan, ZHANG Wei, XIONG Chao, et al. Review on Thixotropic Cement Slurry[J].Advancesin Fine Petrochemicals, 2016,17(3):21-26.
[3]	步玉环, 尤军, 姜林林. 触变性水泥浆体系研究与应用进展[J]. 石油钻探技术, 2009, 37(4):110-114. BU Yuhuan, YOU Jun, JIANG Linlin. Research and application of thixotropic cement slurry[J]. Petroleum Drilling Techniques, 2009, 37(4):110-114.
[4]	姚晓, 周保中, 赵元才. 国内油气田漏失性地层固井防漏技术研究[J]. 天然气工业, 2005, 26(6):45-48. YAO Xiao, ZHOU Baozhong, ZHAO Yuancai. Leak resistance techniques of thief zone cementing in domestic oil and gas fields[J]. Natural Gas Industry, 2005, 26(6):45-48.
[5]	丁士东, 张卫东. 国内外防气窜固井技术[J]. 石油钻探技术, 2002, 30(5):35-38. DING Shidong, ZHANG Weidong. Domestic & oversea cementing techniques of gas-channeling prevention[J]. Petroleum Drilling Techniques, 2002, 30(5):35-38.
[6]	姜林林, 王瑞和, 步玉环. 新型触变性水泥浆触变剂的研制[J]. 钻采工艺, 2009, 32(6):103-106. JIANG Linlin, WANG Ruihe, BU Yuhuan. Study on thixotropic agent of new thixotropic cement slurry[J]. Drilling & Production Technology, 2009, 32(6):103-106.
[7]	CRABB CR, MICH M. Thixotropiccement compositions:US,4822421[P].1989.
[8]	OST ROOT, GABRI EL W, CHAT T ERJI, et al. Thixotropiccementing compositions:US, 3959003[P].1976.
[9]	HORTON, ROBERT L, PRASEK, et al. Prevention and treatment of lost circulation with crosslinked polymer material:US,7098172[P]. 2006.
[10]	JONES R R, CARPENTER R B. New latex, expanding thixotropic cement systems improve job performance and reduce costs[R]. SPE 21010, 1991.
[11]	卢海川, 李洋, 宋元洪, 等. 新型固井触变水泥浆体系[J]. 钻井液与完井液, 2016,33(6):73-78. LU Haichuan, LI yang, SONG Yuanhong, et al. The study of novel thixotropic cement slurry[J]. Drilling Fluid & Completion Fluid, 2016,33(6):73-78.
[12]	谢承斌, 卢海川, 李洋, 等. 水泥浆触变性评价方法的探索[J]. 钻井液与完井液, 2015, 32(6):57-60. XIE Chengbin, LU Haichuan, LI Yang, et al. Study of thixotropy evaluation method for cement slurry[J]. Drilling Fluid & Completion Fluid,2015,32(6):57-60.