The Time Factor Effects of the Drilling Cement Pastes on its Working Characteristics by Increasing Temperature

Abstract:

By drills realization in order to obtain petroleum and natural gas, the isolation of the individual layers along the height of drilling activity is the most important factor for judging the serviceability and follow-existence of the finished work. The special cements for drilling are used as plugging material suited according to API Spec. 10A (American Petroleum Institute).Recently, in the institute we have dealt with the impact of the time factor on the pressure characteristics and stress-strain diagrams of samples from the drilling mud additives [1], due to the time factor for composites containing drilled and subsequently in practice applied aggregates [2] and also the characteristics of a drilling cement made for lower and laboratory increased temperatures [3]. In the article we deal with a similar topic. Results for tension and pressure characteristics gathered in time up to 120 hours were used to generate the stress-strain diagrams, static and dynamic modules in compression. Heat background of tests answers the real terms of drilling activities up to 1200 m. In conclusion, we will compare the results with available foreign results.

• Periodical: Key Engineering Materials (Volume 677)
• Pages: 17-22
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.677.17
• Online since: January 2016
• Authors: Martin Krizma*, Marián Kišac, Dušan Svoboda
• Keywords: Cement Paste, Drilling Cements – Petroleum, Experimental Verification Working Characteristics in Pressure, Experimental Verification Working Characteristics in Tension, Increased Temperature, Laboratory, Natural Gas, Thermal Water

References

[1] M. Križma, J. Petržala: Influence of time factor for the resistance of the pressures and working diagrams (stress / strain) samples from the drilling mud and other drilling wastes containing the proposed amount of additives. Final report of expertise, the role of the NAFTA joint stock company, Bratislava, ICASA SAS Bratislava, (2014).

[2] M, Križma, M. Kišac: Determination of relevant operative compression working characteristics and stress-strain diagrams of cement composite samples based on fine crushed abyssal rocks aggregate. Final report of expertise, the role of the GA Drilling joint stock company, Trnava, ICASA SAS Bratislava, (2015).

[3] M. Križma, J. Petržala: Influence of time factor for the resistance of the pressures and working diagrams (stress / strain) samples of the cement stone cement paste taken on the basis of cement Dyckerhoff,. Final report of expertise, the role of the NAFTA joint stock company, Bratislava, ICASA SAS Bratislava, (2014).

[4] DYCKERHOFF GmbH Germany: Report of testing – Dyckerhoff Well Cements – API Class G HSR, Batch/Ref. No 3461 Oil Well, April 2014, Wiesbaden, Germany.

[5] W. H. Price: Factors influencing concrete strength, Proc. Amer. Concr. Inst., 47, 8, (1951), 417-432.

[6] B. Lothenbach, F. Winnenfeld, C. Alder, E. Wieland, P. Lunk: Effect of temperature on the pore-solution, miscro-structure and hydration products of Portland cement pastes, Cem. Concr. Res. 37, 2007, 483-491.

DOI: 10.1016/j.cemconres.2006.11.016

[7] P. Huňka, J. Kolísko, S. Reháček,M. Vokáč: Test and technological influences on the modulus of elasticity of concrete – recapitulation, Beton TKS, 2012, 12 (4) 62 – 67.

[8] P. Cikrle, D. Kocáb, O. Pospíchal: Testing concrete ultrasonic pulse method, Beton TKS, 2013, 13(3), 74–79.

[9] STN EN 12504-4: Testing concrete. Part 4: Determination of velocity of the ultrasonic pulse, (2005).

[10] STN 73 1371: Method of ultrasonic pulse testing of concrete, (1981).

[11] STN ISO 6784: Determination of static modulus of elasticity in compression, (1993).

[12] STN EN 12390-5: Testing hardened concrete. Part-5: Flexural strength of test specimens, (2001).

[13] Yee. Guangt al: A micro mechanic model for characterization of cement paste at early age validated with experiments, Proc. RILEM Int. Symp. Advances in Concrete through Science and Engineering, Evanston, III, 2004, 11p.

[14] Zhao. Haitao, Huang. Donghui, Wang. Xiaojun, Xudong. Wang Chen: Dynamic Elastic Modulus of Cement Paste at Early Age based on Non-destructive Test and Multiscale Prediction Model, Journal of Wuhan University of Technology - Mater. Sci. Ed.: Materials Science Edition (V. 29, No. 2), 2014, 321 – 328.

DOI: 10.1007/s11595-014-0915-6

[15] M. Bourissai et al: Evolution of the Elastic Properties of an Oilwell Cement Paste at Very Early Age under Downhole Conditions: Characterization and Modelling, Oil & Gas Science and Technology – Rev. IFP Energies nouvelles, Vol. 68 (2013).

DOI: 10.2516/ogst/2012087