Open AccessOpen Access


Optimization of Anti-Collapse Drilling Fluid Systems with High Potassium Content

Yu Xia1, Jian Guan4, Yong Gao5, Shanfa Tang1,2,3,*, Jialuo Rong1

1 School of Petroleum Engineering, Yangtze University, Wuhan, 430100, China
2 Key Laboratory of Drilling and Production Engineering for Oil and Gas, Wuhan, 430100, China
3 School of Petroleum Engineering, Yangtze University: National Engineering Research Center for Oil & Gas Drilling and Completion Technology, Wuhan, 430100, China
4 Engineering Technology Research Institute of PetroChina Great Wall Drilling Engineering Co., Ltd., Panjin, 124000, China
5 PetroChina Fushun Petrochemical Branch, Fushun, 113006, China

* Corresponding Author: Shanfa Tang. Email:

Fluid Dynamics & Materials Processing 2023, 19(6), 1609-1622.


The ash mudstone in some oil formations is highly water-sensitive. The oil formation is fractured, and the risk of well leakage and collapse is not negligible. This study presents a countermeasure for well collapse prevention, based on a “force-chemistry synergistic balance” approach and the utilization of environmentally friendly and efficient hydration inhibitors. The relevance of this approach is demonstrated considering a drilling fluid system with the high potassium content. The analysis shows that the system can maintain good rheological properties, filtration loss and suspension stability even after aging at 130°C for 16 h. The primary roll recovery of rock chips is better than 98%. The secondary rolling recovery rate is 89%. The rapid water loss is close to zero. The effects of carrying rock, sand, hydration inhibition and dispersion of drill chips are all noticeable.


Cite This Article

Xia, Y., Guan, J., Gao, Y., Tang, S., Rong, J. (2023). Optimization of Anti-Collapse Drilling Fluid Systems with High Potassium Content. FDMP-Fluid Dynamics & Materials Processing, 19(6), 1609–1622.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 2049


  • 783


  • 1


Share Link