Orthogonal Test Design for Optimization of Dispersive Type Cement Slurry Fluid Loss Control Additive Used in Petroleum Drilling

Abstract:

The fluid loss control additive plays a key role in reducing reservoir damage and improving the cementing quality of an oil well. Aiming at good fluid loss control ability and excellent dispersibility, a new dispersive type fluid loss control additive was synthesized through orthogonal experiment with 2-acrylamido-2- methyl propane sulfonic acid, acrylamide, N, N-dimethylacrylamide and maleic anhydride. The orthogonal experiment result shows that the influence on the properties of FLCA decreases in the order: PH value > monomer concentration > monomer mole ratio > initiator concentration > temperature. The result indicates that the optimal conditions for FLCA were 4/2.5/2.5/1 of mole ratio of AMPS/AM /NNDMA/MA, 32.5% total monomer concentration in deionized water, 1.0% (by weight of monomer) ammonium persulfate/sodium bisulfite, 4 of PH value, 40°Cof temperature. The synthesized copolymer was identified by FTIR analysis. The results show the dispersive type fluid loss control additive has excellent dispersibility, fluid loss control ability, thermal resistant and salt tolerant ability. As the temperature increases, the thickening time of the slurry containing the synthesized additive reduces. The copolymer is expected to be a good fluid loss control additive.

• Periodical: Advanced Materials Research (Volumes 361-363)
• Pages: 487-492
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.361-363.487
• Online since: October 2011
• Authors: Sheng Lai Guo, Yu Huan Bu
• Keywords: Cementing Quality, Dispersive Type, Fluid Loss Control Additive, Oil Well Cement, Orthogonal Experiment, Working Mechanism

References

[1] Bannister, C.E., Lawson, V.M. SPE The 60th Annual Technical Conference and Exhibition, Las Vegas, SPE 14433 (1985).

[2] J. Gu, X. Chen: Petroleum Science and Technology.Vol.27 (2009).

[3] Chongjian Liu, Bozong Huang, Tongtai Xu, et al.. Theory and Application of Well Cementation (Petroleum Industry Press, Beijing 2002).

[4] J. Plank, A. Brandl, Y.N. Zhai, et al.: Journal of Applied Polymer Science.Vol.102 (2006).

[5] J. Plank, F. Dugonjic-Bilic, L.N. Recalde, et al.. SPE International Symposium on Oilfield Chemistry, Woodlands, Texas, SPE 121542 (2009).

[6] Aiping Liu, Jingen Deng: Oil Drilling & Production Technology.Vol.28 (2006). In Chinese.

[7] American Petroleum Institute. Recommended Practice for Testing Well Cements, 23nd, April 2002.

[8] Kaitai Fang, Changxing Ma. Orthogonal and Uniform Experiment Design (Science Press, Beijing 2001).

[9] Ruihua Hui, Chongxin Guan, Dongyan Hou: Journal of Anshan Teachers College.Vol.3 (2001). In Chinese.

[10] R.R. Jones, R.B. Carpenter, M.W. Conway. SPE The 60th Annual Technical Conference and Exhibition, Dallas, TX, SPE 22777 (1991).