钻井液用淀粉微球降滤失剂的制备及性能评价

陈思琪; 邱正松; 钟汉毅; 张倩; 闫峰; 刘书杰

doi:10.3969/j.issn.1001-5620.2019.04.003

钻井液用淀粉微球降滤失剂的制备及性能评价

doi: 10.3969/j.issn.1001-5620.2019.04.003

1. 中国石油大学(华东), 石油工程学院, 山东青岛 266580;
2. 辽河油田公司钻采工艺研究院, 辽宁盘锦 124010;
3. 中海油研究总院, 北京 100028

基金项目:

十三五国家科技重大专项中海油研究总院牵头的重大专项子课题“环保钻井液与防漏堵漏新技术研究”（2017ZX05032-004-005），国家自然科学基金青年基金“基于压力控制靶向释放的微胶囊化钻井液润滑剂制备及作用机理”（51704322），山东省自然科学基金“超支化聚合物修饰的纳米二氧化硅设计、制备及稳定页岩作用机理”（ZR2017QEE011）

详细信息

作者简介:
陈思琪,现在主要从事钻井液技术研究。电话18782920177;E-mail:674959313@qq.com

中图分类号: TE254.4
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- 被引次数: 22
出版历程
- 收稿日期: 2019-04-26
- 刊出日期: 2019-08-30

Preparation and Performance Evaluation of a Drilling Fluid MicrosphereStarch Filter Loss Reducer

1. School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266580;
2. Research Institute of Drilling and Production Technology, Liaohe Oilfield, Panjin, Liaoning 124010;
3. Research Center of CNOOC, Beijing 100028

摘要

摘要: 针对常规的淀粉类处理剂抗温能力不足的缺点，以可溶性淀粉为原料，N-羟基琥珀亚酰胺（NHC）为交联剂，采用乳液聚合方法，合成了一种环保型淀粉微球。采用傅立叶红外光谱仪（FT-IR）、扫描电镜（SEM）、热重分析仪、Nanobrook粒度-Zeta电位测试仪等对其进行表征。实验分别评价了，其在淡水基浆、盐水基浆和氯化钙基浆中的降滤失性能，并考察其抗温能力。实验表明，新研制的淀粉微球颗粒大小较均匀，呈圆球状，粒径约为50 nm，热稳定性好；150℃热滚后，加入1%淀粉微球，可分别使4%膨润土基浆、10%盐水基浆、1% CaCl₂基浆的API滤失量分别下降70%、55%和60%。且对钻井液流变性影响较小，在降滤失能力、抗温和抗盐方面均优于常规的淀粉类降滤失剂。
- 水基钻井液 /
- 降滤失剂 /
- 淀粉微球 /
- 抗高温
Abstract: To address the poor temperature resistance of conventional starches, a novel environmentally friendly microspherestarch has been synthesized through emulsion polymerization using soluble starch as the raw material and N-hydroxysuccinimide (NHC) as the crosslinking agent. The microspherestarch was characterized with FT-IR, SEM, TGA and Nanobrook particle-zeta potential tester. The microspherestarch was evaluated for its filtration control performance and temperature resistance in fresh water drilling fluid, saltwater base drilling fluid and calcium chloride treated water base drilling fluid. It was found that the particles of the microsphere starch have uniform particle size distribution (ca. 50 nm) and are in a shape of sphere. It has good thermal stability; after hot rolled at 150℃, a 4% bentonite slurry, a 10% saltwater mud and a 1% CaCl₂ mud treated with 1% microsphere starch respectively had their API filter loss reduced by 70%, 55% and 60% respectively. This microsphere starch has only minor effect on the rheology of a drilling fluid, it is superior to conventional starch in filtration control, high temperature resistance and salt resistance.
- Water base drilling fluid /
- Filter loss reducer /
- Microsphere starch /
- High temperature resistant

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参考文献(20)

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施引文献

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