新型井壁稳定剂DLF-50的研制与应用

林常茂; 张永青; 刘超; 王志明; 商鹏辉; 陈祖红; 刘建广; 熊亚萍

doi:10.3969/j.issn.1001-5620.2015.04.005

新型井壁稳定剂DLF-50的研制与应用

doi: 10.3969/j.issn.1001-5620.2015.04.005

渤海钻探第四钻井工程分公司,河北任丘

详细信息

作者简介:
林常茂,工程师,1971年生,2005年毕业于中国石油大学资源勘查工程专业,现从事钻井液技术管理工作。地址:河北省任丘市潜山道钻四工程技术中心;邮政编码062552;电话18032225262;E-mail:1070873661@qq.com。

中图分类号: TE254.3
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出版历程
- 收稿日期: 2015-05-05
- 刊出日期: 2015-07-31

Development and Application of the New Shale Stabilizer DLF-50

Engineering Technology Center of the Fourth Drilling Company, Qianshan Road, Renqiu City, Hebei 062552, China

摘要

摘要: 冀中地区第三系油藏东营组与沙河街组地层微裂缝和层理发育良好,硬脆性较强,易剥落掉块,现用防塌剂已不能满足钻井要求。通过以下反应,研制出一种新型井壁稳定剂DLF-50 :首先利用分子修饰原理在磺化酚醛树脂分子上引入AMPS、阴离子单体甲基丙烯酸MAA、非离子单体DMAM(N-二甲基丙烯酰胺)和某阳离子单体进行缩合共聚,形成四元共聚物降滤失剂C-P-SMP;然后将其与纳米改性沥青混配,并添加一定量的分散剂,形成该产品。性能评价结果表明,该产品兼具物理和化学双重作用,热稳定性好,在150 ℃时仍有显著的降滤失效果;同时纳米改性沥青显著提高了泥饼强度和泥饼质量,初始软化温度为 80～95 ℃,最佳使用温度为80～120 ℃。泽10-108x 和宁93x 井试验应用加有该处理剂的钻井液后,井眼畅通,井径规则,起下钻无阻卡,无井塌和掉块现象发生,长裸眼条件下井壁稳定。
- 井眼稳定 /
- 防塌剂 /
- 四元共聚 /
- 纳米改性沥青 /
- 降滤失 /
- 泥饼强度 /
- 抗盐 /
- 抗温
Abstract: A new shale stabilizer, DLF-50, was developed for use in the drilling operations in Jidong area, where micro-fractures and beddings are developed in the brittle Tertiary formations such as the Dongying formation and Sahejie formation. The DLF-50 was synthesized with AMPS, methacrylic acid (MAA), n-dimethylacrylamide (DMAM), a cationic monomer, a nano modified asphalt, and a dispersant. DLF-50 has good filtration control capacity even at 150 ℃. In field applications of DLF-50 in Well Ze10-108x and Well Ning93x, gauge holes were drilled, with no drag and resistance ever met during tripping, and no borehole collapse and cave-in ever encountered in long open hole drilling.
- Quadri-polymerization /
- Nano modified asphalt /
- Effect of filtration control /
- Strength of mud cake /
- Salt tolerant /
- High temperature resistance /

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参考文献(5)

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