有机无机杂化触变剂的研究与应用

史野; 穆剑雷; 朱峰; 李秀妹; 杨贺卫; 常庆露; 马春晖; 郭锦棠

doi:10.12358/j.issn.1001-5620.2023.03.017

有机无机杂化触变剂的研究与应用

doi: 10.12358/j.issn.1001-5620.2023.03.017

史野^{1, 2,},
穆剑雷^{1, 2},
朱峰^{1, 2},
李秀妹^{1, 2},
杨贺卫^{1, 2},
常庆露^{3, 4},
马春晖⁵,
郭锦棠^{3, 4, ,}

1.
天津市复杂条件钻井液企业重点实验室, 天津300280
2.
中国石油集团渤海钻探泥浆技术服务分公司, 天津300280
3.
天津大学化工学院, 天津 300350
4.
天津大学浙江研究院 (绍兴), 浙江绍兴312300
5.
中国石油集团渤海钻探工程技术研究院, 河北任丘062552

基金项目: 天津市科技计划项目“非常规和深层油气资源开发钻井液关键技术研究”（19PTSYJC00120）

详细信息

作者简介:
史野，博士，1987年生，毕业于吉林大学应用化学专业，从事钻井液漏失治理技术研究与应用。电话（022）25922500；E-mail：shi_ye@cnpc.com.cn

通讯作者:
郭锦棠，电话13821341810；E-mail：jtguo@tju.edu.cn

中图分类号: TE256.6
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- 文章访问数: 673
- HTML全文浏览量: 213
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- 被引次数: 0
出版历程
- 收稿日期: 2022-12-08
- 修回日期: 2023-01-31
- 网络出版日期: 2023-07-21
- 刊出日期: 2023-05-30

Research and Application of Organic and Inorganic Hybrid Thixotropic Agents

SHI Ye^{1, 2
,},
MU Jianlei^{1, 2},
ZHU Feng^{1, 2},
LI Xiumei^{1, 2},
YANG Hewei^{1, 2},
CHANG Qinglu^{3, 4},
MA Chunhui⁵,
GUO Jintang^{3, 4
, ,}

1.
Tianjin Key Laboratory of Complicated Conditions Drilling Fluids, Tianjin 300280
2.
CNPC Bohai Drilling Engineering Company Limited，Tianjin 300280
3.
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350
4.
Zhejiang Institute of Tianjin University, Shaoxing, Zhejiang 312300
5.
Research Institute of Engineering Technology of CNPC Bohai Engineering Company Limited, Renqiu , Hebei 062552

摘要

摘要: 在解决恶性井漏、薄弱地层固井问题时，可加入触变剂形成触变水泥浆。目前触变水泥浆体系存在触变性不够强、对温度敏感以及综合性能欠佳等问题，限制了现有触变剂的应用。为了提高水泥浆体系的触变性，选择异戊烯醇聚氧乙烯醚TPEG、N,N-二甲基丙烯酰胺DMAA、丙烯酸AA等单体合成有机聚合物TDA-1，利用杂化的方式将有机聚合物与无机膨润土复配，研制出一种触变性良好的新型触变剂CBJ-1。并研究了该新型触变剂对水泥浆性能的影响。利用红外光谱、XRD表征触变剂的结构，采用初终切实验测试了水泥浆的触变性。结果证明，该新型触变剂CBJ-1合成成功，温度适用范围较广，改善了其温度敏感问题。将其加入水泥浆后，触变水泥浆的初终切差值较大，具备良好的触变性，且水泥浆的失水及稠化性能不受影响，综合性能优异。
- 油井水泥 /
- 触变剂 /
- 聚合物 /
- 膨润土 /
- 堵漏
Abstract: A thixotropic cement slurry can be obtained by adding thixotropic agent into a common cement slurry, and this thixotropic cement slurry can be used to deal with severe mud losses and difficulties in cementing a well penetrating weak formations. Thixotropic cement slurries presently in use have several shortages such as weak thixotropy, sensitive to temperature changes and poor overall performance etc., limiting their use in dealing with downhole problems. To improve the thixotropy of a cement slurry, a new thixotropic agent was developed by combining an organic polymer TDA-1 and the inorganic bentonite. TDA-1 is a polymer synthesized from isopentenol polyoxyethylene ether (TPEG), N, N -dimethyl acrylamide (DMAA) and acrylic acid (AA). TDA-1 and bentonite were then hybridized to produce the new thixotropic agent CBJ-1. The effects of the new hybridized inorganic thixotropic agent CBJ-1 on the performance of cement slurries were studied. Using IR and XRD, the molecular structure of CBJ-1 was characterized. Using gel strength test, the thixotropy of the cement slurry was measured. The experimental results show that the new thixotropic agent was successfully synthesized. It has wide range of work temperature, thus can be used to mitigate the temperature sensitivity problem of a thixotropic cement slurry. A cement slurry treated with CBJ-1 has big difference between the initial gel strength and the final gel strength, meaning that the cement slurry has good thixotropy. CBJ-1 has no negative effect on the filtration rate and thickening performance of the cement slurry. The experimental results show that CBJ-1 has excellent general performance.
- Oil well cement /
- Thixotropic agent /
- Polymer /
- Bentonite /
- Plugging

HTML全文

图 1 TDA-1的红外光谱图

下载: 全尺寸图片幻灯片

图 2 TDA-1的¹H-NMR谱图

下载: 全尺寸图片幻灯片

图 3 有机无机杂化触变剂的XRD谱图

下载: 全尺寸图片幻灯片

图 4 加有触变剂的水泥浆不同温度下的稠化曲线

下载: 全尺寸图片幻灯片

表 1 加有不同触变剂水泥浆在50 ℃及90 ℃养护后的静切力

水泥浆	50 ℃			90 ℃
水泥浆	初切/Pa	终切/Pa	初终切之差/Pa	初切/Pa	终切/Pa	初终切之差/Pa
纯水泥	0.87	2.40	1.53	1.53	5.11	3.58
水泥+TDA-1	1.02	3.07	2.05	1.64	9.20	7.56
水泥+膨润土	11.67	39.60	27.93	19.42	60.43	41.01
水泥+CBJ-1	17.26	51.02	33.76	25.62	74.10	48.48
注：水泥浆配方为600 g水泥+1.2%触变剂+4%降失水剂BXF-200L+46%水。

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