The Use of Nanoaccelerator in Cement Slurries in Low Temperature Well Conditions

Document Type: Research Paper


Division of Petroleum Engineering, Faculty of Upstream Petroleum Industry, Research Institute of Petroleum Industry (RIPI), Tehran, Iran


It has long been known that temperature during circulation and after cement placement is one of the most important parameters for slurry design and the success in cement production. Conventional cements and low density cement slurries usually take a long time to set and cannot provide significant compressive strength. Therefore, it is important to design appropriate low density cement slurries for low temperature conditions during surface casing cementation. In well cementing procedures, the slurry must be fluid for a sufficient time to allow the task to be completed. One of the problems that frequently happens in cementing a low temperature formation is a long setting time, in which the cement is influenced by low temperatures and the thickening time increases. To solve this problem, a unique cement system, which contains nanosilica, hollow spherical material, and class-G oil well cement, was developed for the first time. For this purpose, some additives such as; dispersants and fluid loss control agents were used in the cement system. The laboratory tests show that this slurry has a low density, excellent fluid loss control, no free fluid, right-angle-set, and a short thickening time (47 minutes) at low temperatures. The experimental results presented herein can help resolving problems in surface casing cementing


[1] Chengwen W., Ruihe W., Yuhuan B., and Weidong Z., Unique Cement Slurry Overcoming Low Temperature, Shallow Water/Gas Flows in Deepwater Cementing,” Paper SPE/IADC 125405, Presented at SPE/IADC Middle East Drilling Technology Conference & Exhibition, Manama, Bahrain, 2009.

[2] Dasgupta D., “Lightweight Slurries: a Success Story of Application in Low Fracture Gradient and Depleted Fields for Improved Cementation,” SPE paper 101810 presented at the SPE/IADC Indian Drilling Technology Conference and Exhibition held in Mumbai, India, 2006.

[3] Dean R., Andrey P., and Alexander K., “Lightweight Cement Slurry Design Optimization for Cementing High Flow-Rate Wells in Low-temperature Ranges,” Paper SPE 114773, Presented at the SPE Russian Oil & Gas Technical Conference and Exhibition, Moscow, Russia, 2008.

[4] Eirik S. and Rodrigo V., “Solution for a Long-Standing Cementing Challenge Engineered Cement Set Control Additive,” Paper SPE 106964, Presented at Offshore Europe, Aberdeen, Scotland, UK, 2007.

[5] Ghosh S. N. “Cement and Concrete Science & Technology,” Volume I, Part I, ABI Books Private Limited, New Delhi, 110019, 1991.

[6] Henry S. and Paul W., “World-wide Deepwater Exploration and Production: Past, Present and Future,” Paper OTC 14024, presented at the Offshore Technology Conference, Houston, TX, 2002.

[7] Jim O. L., Juan C. F., and Greg G., “Cementing Deepwater, Low-temperature Gulf of Mexico Formations Prone to Shallow Flows,” Paper SPE87161, presented at the IADC/SPE drilling conference, Dallas, Texas, 2004.

[8] Konstantin S. and Surendra P., “Nanotechnology of Concrete: Recent Developments and Future Perspectives,” 2008, 152-168.

[9] Mueller D. T. and Eid R. N., “Characterization of the Early-time Mechanical Behavior of Well Cements Employed in Surface Casing Operations,” Paper IADC/SPE 98632, Presented at IADC/SPE Drilling Conference, Miami, Florida, USA, 2006. Journal of Petroleum Science and Technology H. Soltanian and A. R. Mortazavi Journal of Petroleum Science and Technology 2016, 6(1), 109-114 © 2016 Research Institute of Petroleum Industry (RIPI) 114 |

[10] Ravindra K., Moray D., and Laszlo J., “Applications of Nanotechnology in Concrete Design,” 2005, 113-130.

[11] Satinath B. and Debasish D., “Smart Cementing Solutions for Low-BHCT Wells Case Studies for Successful Field Implementation,” Paper SPE 105217, Presented at SPE Middle East Oil & Gas Show and Conference, Bahrain, Kingdom of Bahrain, 2007.

[12]Stale H., Scoggins W. C., Stuart L. J., and Rikke P., “Meeting the Environmental Challenges in Cementing,” Paper SPE106644, presented at the SPE E&P Environmental and Safety Conference, Galveston, Texas, 2007.