1Exploration Department, Research Institute of Petroleum Industry (RIPI), West Blvd. of Azadi Sports Complex, Tehran, Iran
2Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
Abstract
The main purpose of cementing of the well is to provide effective zonal isolation for the entire life of wells. The standard cements cannot prevent loss of zonal isolation when the stress level in the well cement is severely fluctuated. Since elastic cements improve elastic properties, recently, a number of studies have been done in this area. For this purpose, a nanoparticle, named EX-RIPI, was designed as an additive to improve cement elasticity. A series of experiments were carried out to investigate the effects of this additive on the elastic properties of the cement. The experimental results showed that the addition of EX-RIPI to the cement slurries decreased Young’s modulus from 2.86 GPa to 1.94 GPa but increased Poisson’s ratio from 0.04 to 0.25. Consequently, EX-RIPI can be used as a suitable additive for improving the mechanical properties of cement used for a long time zonal isolation. To illustrate the performance of this additive, the properties of the cement stone was compared with one of available additives in the market (i.e., Flexstone).
Mack J., Dillenbeck L. R., BJ Services Company, “Cement: How Tough is Tough Enough? A Laboratory and Field Study.” SPE 78712-MS, SPE Eastern Regional Meeting, 2002, Lexington, Kentucky, U.S.A., 23-26 October.
[2] Lullo G., Phil Rae, BJ Services Company. “Cements for Long Term Isolation Design Optimization by Computer Modeling and Prediction.” SPE 62745-MS, IADC/SPE Asia Pacific Drilling Technology, Kuala Lumpur, Malaysia . 2000, 11-13 September.
[3] Le Roy-Delage S., Baumgarte C., Thiercelin M., Vidick B., Schlumberger “New Cement Systems for Durable Zonal Isolation.” SPE 59132-MS, IADC/SPE Drilling Conference, 2000, New Orleans, Louisiana, U.S.A., 23-25 February.
[4] Mueller D. T., BJ Services Company, “Producing Stress-Resistant High-Tempera-ture/High-Pressure Cement Formulations through Microstructural Optimization”. SPE 84562-MS, SPE Annual Technical Conference and Exhibition, 2003, Denver, Colorado, U.S.A., 5-8 October.
[5] Ravi K., Halliburton; Bosma M., Shell International E & P; Gastebled O., TNO Building and Construction Research, “Safe and Economic Gas Wells through Cement Design for Life of the Well.” SPE 75700-MS, SPE Gas Technology Symposium, 2002 Calgary, Alberta, Canada, 30 April-2 May.
[6] Morris W., Criado M. A., Robles J., Bianchi G., San Antonio-Pride Int. “Design of High Toughness Cement for Effective Long Lasting Well Isolations.” SPE 81001-MS, SPE Latin American and Caribbean Petroleum Engineering Conference, 2003, Port-of-Spain, Trinidad and Tobago ., 27-30 April.
[7] Feder, J., “Casing and Cementing” 3rd Edition, Petroleum Extension Service, University of Texas, 2001, p. 99.
[8] Boukhelifa L., Schlumberger; Moroni N., ENI SpA; James S. G., Le Roy-Delage S., Thiercelin M. J, Schlumberger, Lemaire G., INSA. Toulouse. “Evaluation of Cement Systems for Oil and Gas Well Zonal Isolation in a Full-Scale Annular Geometry.” SPE 87195-MS, IADC/SPE Drilling Conference, 2004, Dallas, Texas, U.S.A., 2-4 March.
[9] El-Hassan H., Sultan M., and Saeed A. A., ADCO, and Johnson C., SPE, Belmahi A., and Rishmani L., Schlumberger . “Using a Flexible, Expandable Sealant System to Prevent Microannulus Formation in a Gas Well: A Case History.” SPE 92361, SPE Middle East Oil & Gas conference, 2005, Bahrain., 12-15 March.
[10] Wray B., Cimarex Energy, Bedford D., Leotaud L., and Hunter B., Halliburton . “The Application of High-Density Elastic Cements to Solve HP/HT Challenges in South Texas: The Success Story.” SPE 122762-MS, SPE Annual Technical Conference and Exhibition, 2009, New Orleans, Louisiana, U.S.A, 4-7 October.
[11] The University of Texas at Austin-Petroleum Extension services, “Well Cementing (Oil and Gas production)”, The University of Texas at Austin-Petroleum Extension Service, 1983, p. 345.
[12] Montgomery C P., “Oil Well Cementing Practices Materials”, Halliburton Oil Well Cementing Co, 1959, p. 149.
[13] Marlow S R., “Effect of Temperature/ Pressure Cycling on Cement Bonding Characteristics in Gas Injection/Withdrawal Wells”, Southwest Research Institute, 1987, p. 202.
[14] Jacqueline and Cartalos Ulysses “Cementing Technology”, Editions Technip, 1994, p. 116.
[15] Smith, K. D., “Cementing”, Henry L. Doherty Memorial Fund of AIME, 1987, p. 189.
[16] Nelson E., D., “Well Cementing”, 2nd Edition, Schlumberger, 2006, p. 301.
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