Synthesis and drilling fluid performance of polymer based nano-silica composite

被引：3

作者：

Mao, Hui ^{[1
]}

Qiu, Zhengsong ^{[1
]}

Fu, Jianguo ^{[2
]}

Shen, Zhonghou ^{[1
]}

Huang, Weian ^{[1
]}

Liu, Junyi ^{[1
]}

Ma, Yongle ^{[3
]}

机构：

[1] School of Petroleum Engineering, China University of Petroleum (Huadong), Qingdao

[2] Zhundong Drilling Mud Company of CNPC Xibu Drilling Engineering Company Limited, Zhundong

[3] Tianjin Bo-Xing Engineering Science and Technology Company of CNPC, Tianjin

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2015年 / 46卷 / 07期

关键词：

Composite; Drilling fluid; Micro-nano; Nano-scilica; Polymer based nano materials;

D O I：

10.11817/j.issn.1672-7207.2015.07.025

中图分类号：

学科分类号：

摘要：

The P(AMD) terpolymer was compounded by acrylamide (AM), maleic anhydride (MAH) and N,N-dimethyl acrylamide as reactive monomer. This terpolymer was used as matrix, and nano-scilica as filler to synthetize a new micro-nano drilling fluid additives SDNP with Core-shell structure. The microstructure identities and relative molecular mass of this polymer were tested by experiments including TEM, measurement of the diameter distribution and GPC. And the influence of SNDP on rheological property and filtration of water-based drilling fluid was also discussed. Furthermore, the characters and mechanism of SNDP were evaluated and analyzed by evaluating experiments of temperature resistance, particle size distribution, inhibitory and lubricity. The results show that SNDP can improve the rheology of drilling fluid and dynamic plastic ratio significantly, that size grading is reasonable, that filtration volume is reduced obviously, and that heat-resistant can reach above 180 ℃. What's more, inhibition and lubrication performance are outstanding. At the mass fraction of 0.5%, shale recovery rate is as high as 94%, shale inflation rate is only 2.3%, and the reduced rates of extreme pressure lubrication coefficient relative to base slurry can reach 93.4%. ©, 2015, Central South University of Technology. All right reserved.

引用

页码：2564 / 2570

页数：6

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