[1] Zhao, F., Wang, P.Q. and Li, X. (2008) Recent advance in Aphron drilling fluids. Drilling & Production Technology, 31, 123-124.
[2] Wang, H.J., Zhen, J., Zheng, X.H., et al. (2007) Research and application of micro-foam drilling fluid in Daqing Oilfield. Drilling & Production Technology, 29, 88-92.
[3] Sun, J.S. (2006) Drilling fluid technology anthology. Petroleum Industry Press, Beijing, 135-150.
[4] Li, G.Q., Wang, H.J., Liu, J.T., et al. (2009) Micro-bubble drilling fluid technology. Petroleum Geology & Oilfield Development in Daqing, 28, 203-207.
[5] Zhang, Z.H., Yan, J.N. and Fan, S.Z. (2003) Low-density drilling fluid technology. Petroleum University Press, Dongying, 51-54.
[6] Xu, J.F., Qiu, Z.S. and He, Q. (2010) Anti-sloughing mechanism study and application of circulating microfoam drilling fluid. Drilling Fluid & Completion Fluid, 27, 7-9.
[7] Wang, W., Jia, L.Y. and Su, Y. (2005) Oil/gas layer protecting techniques in the course of drilling and completion in Hailaer exploration area. Petroleum Geology & Oilfield Development in Daqing, 24, 69-71.