Study on Preparation of Drilling Mud Auxiliary by Upgrading and Modifying Low-grade Bentonite

YU Yuanyuan; JING Qiangshan; YU Xuehua; YU Yongsheng

doi:10.13779/j.cnki.issn1001-0076.2022.04.007

2022 Vol. 42, No. 4

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(4): 60-67

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YU Yuanyuan, JING Qiangshan, YU Xuehua, YU Yongsheng. Study on Preparation of Drilling Mud Auxiliary by Upgrading and Modifying Low-grade Bentonite[J]. Conservation and Utilization of Mineral Resources, 2022, 42(4): 60-67. doi: 10.13779/j.cnki.issn1001-0076.2022.04.007

Citation:

YU Yuanyuan, JING Qiangshan, YU Xuehua, YU Yongsheng. Study on Preparation of Drilling Mud Auxiliary by Upgrading and Modifying Low-grade Bentonite[J]. Conservation and Utilization of Mineral Resources, 2022, 42(4): 60-67. doi: 10.13779/j.cnki.issn1001-0076.2022.04.007

Study on Preparation of Drilling Mud Auxiliary by Upgrading and Modifying Low-grade Bentonite

1.
College of Chemical and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
2.
Xinyang Shangtianti Yihe Mineral Resources Development Co. LTD, Xinyang 464117, China
3.
Engineering Research Center of Nano-Geo Materials of Ministry of Education, China University of Geosciences, Wuhan 430074, China

More Information

Corresponding author: JING Qiangshan, 9jqshan@163.com

Received Date: 02 May 2022

Publish Date: 25 August 2022

Abstract

Abstract

There are a lot of low-grade calcium bentonite in Shangtianti area of Xinyang, Henan Province. The Φ600 of mud was 2 mPa·s and the filter loss was 89 mL, which can not meet the technical requirements of drilling grade bentonite(GB/T 5005-2010, Φ600 ≥ 30 mPa·s, filter loss ≤ 16 mL). Sodium modified bentonite was prepared by semi-dry modification process, when the dosage of sodium carbonate was 2.5% and sodium time for 1.5 hours, the mud filter loss decreased to 31 mL. Then, the influence of synergist on the properties of bentonite slurry was studied by single factor experiment. XRD, FTIR and SEM potential were used to investigate the mechanism of the effect of the synergist on the slurry-making properties of Bentonite. Finally, the synergist was optimized and regulated through orthogonal experiment. The results showed that the synergist facilitated the formation of network structures. when the composite synergist composed of 1% MgO and 1% APAM, the viscosity reached 34 mPa·s and the filter loss could be reduced to 12 mL, which could meet the technical requirements of bentonite for drilling.
- bentonite /
- semi-dry sodium /
- synergist /
- drilling mud

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References

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