Research of Influences on Second Interface Cementation Performance in Well Cementation of Adding Metakaolin into Drilling Fluid

Abstract:

It is difficult for conventional drilling fluid filter cake to form integration cementation with cement sheath, which causing weak cementation of the second interface. Therefore the following researches on improving the second interface cementation strength were carried out based on alkali activation mechanism of metakaolin. Cementation strength between metakaolin drilling fluid filter cake and cement sheath has been observed; the mechanism has been analyzed through SEM, XRD and FT-IR; engineering application performance of metakaolin drilling fluid has been studied; and circulation time of the technology has been researched. The results of the experiments showed that: 1) adding metakaolin into drilling fluid was helpful to improve the second interface cementing performance; 2) calcium hydroxide produced by cement hydration inspired metakaolin to generate C-S-H gel and realized overall cementation of filter cake and cement sheath; 3) through select particle size of metakaolin matched with other solids in drilling fluid, drilling fluid performance index could meet requirements of engineering application; 4) and for best results, the circulation time of metakaolin drilling fluid should be more than 40 minutes. The results prove that metakaolin drilling fluid can improve the second interface cementation performance, showing feasibility on flied using and practical values on improving wellbore integrity.

• Periodical: Materials Science Forum (Volume 847)
• Pages: 519-526
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.847.519
• Online since: March 2016
• Authors: Yu Kun Mei, Ming Li, Lu Liu, Biao Zhou, Xiao Yang Guo
• Keywords: Cementation Strength, Drilling Fluid, Filter Cake, Metakaolin, Second Interface

References

[1] J. Wu, Research on the cement sheath seal an integrity, Yangtze University, (2013).

[2] J.N. Yan, Drilling fluid technology. Shandong: China University of Petroleum Press, 2014 1-17.

[3] B.Z. Shi, Y.X. LIN, Drilling fluid technology progress and development direction of SINOPEC. Drilling Fluid & Completion Fluid, 2(2013) 77-82.

[4] Z.G. Peng, Q. Feng, Y.R. He, C.J. Liu, Study on performance of filter cake solidified by cinder MTC. Natural Gas Industry, 4(2006) 74-76.

[5] J. Gu, J.B. He, S.J. Qiao, J.C. Pu, F. Zhou, W.P. Zhang, Application of the MTA method to gas-channeling prevention in well cementing in the Sebei gas field. Qaidam Basin [J]. Natural Gas Industry, 4(2014) 83-89.

[6] Z.G. Peng, The BFS MTC cementing technology research. Southwest Petroleum Institute, (2004).

[7] R.C. Cheng, Y. H Bu, R.H. Wang, Experimental study on blast furnace slag (BFS) to improve cement bonding quality of cementing operation. Natural Gas Industry, 2(2007) 63-66.

[8] Y.F. Duan, P.M. Wang, K.R. Yang, Research on mechanism of alkali excitation metakaolin cementitious material hydration hardening. New Building Materials, 1(2006) 22-24.

[9] J.B. Lv. Preparation and performance analysis of the fly ash geopolymer system. Northwestern University, (2009).

[10] J.C. Jian, Z. Liu, L.Y. Lai, H.B. Yang, H.X. Huang, Preparation conditions and hydration processor metakaolin geopolymer. Journal of Guilin University of Technology, 3(2014) 544-548.

[11] Y. Han, Study on the influence mechanism of metakaolin on the cement hydration product. Wuhan University of Technology, (2013).

[12] GB/T15783-2006, Petroleum and natural gas industries field testing of drilling fluids.

[13] Y. Ma, M.R. Cui, X.Y. Guo, Effect of wall building of drilling muds on the cement job quality. Drilling Fluid & Completion Fluid, 2(2007) 37-38, 47.

[14] C.H. Zhou, M.R. Cui, X.J. Huang, J. Li, Conventional rheological models and optimization methods of drilling fluids. China Science and Technology Information, 22(2005) 86-87.

[15] Drilling manual, editorial committee. Drilling handbook (second edition), Beijing: Petroleum Industry Press, (2013).

[16] F.S. Zhou, W.X. Ni, M.F. Zhao, C.S. Pu, F.J. Lu, A Study on the factors influencing the strength of drilling fluid filter cake. Journal of Xi'an Petroleum Institute. 4(1997) 22-25.