IJSTR >> Volume 9 - Issue 3, March 2020 Edition

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AUTHOR(S)

Rizki Akbar, Rini Setiati, Abdul Hamid

KEYWORDS

cement, slurry, nitrogen, zonal isolation, foam, engineering.

ABSTRACT

Cementing is the most important part of well construction and requires effective compatibility with nitrogen (N2) additives. Some of the challenges associated with this process are high temperatures, brine corrosion, and CO2 gas. The cementing process in geothermal wells is similar to oil and gas with high displacement efficiency to ensure adequate processing during low velocity. This study, therefore, aims to determine the function of foam cement using nitrogen to improve zonal isolation. The low use of variable density and relatively high strength of the foamed cement help operators to achieve long-term hydraulic bonds and zonal isolation by preventing hydrostatic pressure damage. In Indonesia, geothermal wells are developed with the fracture and low temperature gradients using lightweight foamed cement. This ensures job success, proper engineering, and control.. The results foam cementing are to establish good bonds and zonal isolation, the engineering process allows operators to adjust slurry density during cementing as needed. It is first mixed then pumped into a hole, and stabilized to create foam. This study concludes foam pumping has the ability to improve zonal isolation in oil and gas drilling wells.

REFERENCES

[1] Nelson, E.B, Guillot, D., Well Cementing, 2nd edition, Schlumberger, Sugar Land, 2006.
[2] de Rozeries . J. and Ferrkre. R.: '' Foamed Cement Characterization under Downhole Conditions and its Impaction Job Design” paper lADC/SP6 10035 (1991)
[3] Davies, D.R., Hartog, J.J., and Cobbett, J.S.: “Foamed Cement—A Cement with Many Applications,” paper SPE 9598 presented at the SPE Middle East Oil Technical Conference, Manama, Bahrain (March 9–12, 1981).
[4] Davies, J.T., and Rideal, E.K.: Interfacial Phenomena, New York, New York, USA, Academic Press (1963).
[5] Ross, S.: “Bubbles and Foam,” Industrial & Engineering Chemistry (1969) 61, No. 10, 48–57.
[6] D.J. Guillot, and E. Le Bastard, 2012, “Learnings from Foamed Cement Job Simulations”, paper OTC 23666, presented at Offshore Technology Conference 2012, Houston, April 30 – May 3, 2012.
[7] D.J. Guillot, book “Well Cementing – Second Edition”, Chapter 4: “Rheology and Flow of Well Cement Slurries”, pages 93-142,2006
[8] Beirut, R.M. s.l., 1987, “A Technique for Onsite Diagnosis of Cement Job Problems: The Concept of Job Signature”, SPE paper 16649.
[9] Piot, Bernard, and Loizzo, Matteo, 1998, “Reviving the Job Signature Concept for Better Quality Cement Jobs”, paper IADC/SPE 39350, presented at IADC/SPE Drilling Conference, Dallas, March 3 – 6, 1998.
[10] R.M. Ahmed, N.E. Takach, U.M. Khan, S. Taoutaou, S. James, A. Saasen and R. Godoy, 2009, Rheology of Foamed Cement” technical article published in Cement and Concrete Research Journal 39, pages 353 – 361, 2009 doi:10.1109/TVCG.2007.70405. (IEEE Transactions ).
[11] Anya, A, “lightweight and Ultraweight Cements for Well Cementing – A Review”, SPE-190079-MS, 2018.
[12] Fomenvov, A., Pinigin, I, et.al,, “Foam Cementing in the Volga-Ural Region : Case Study”, SPE-191507-18RPTC-MS. 2018.
[13] Hamidreza, Budiawan, et.al, “Application of an Innovative Cement Spacer to Improve Zonal Isolation – Indonesia Case Histories”, SPE-171490-MS, 2014.
[14] Kutchko, B, Crandall, et.al; “Assessment of Pressurized Foamed Cement Used in Deep Offshore Well”, OTC-25994-MS, 2015.
[15] Kutchko, B, Crandall, et.al., “A Look at Processes Impacting Foamed Cements’, SPE-180337-MS, 2016.
[16] Kumar, A, Gupta, G, et.al., “Flexible Cement Extends Wellbore Life with an Integrated Approach to Zonal Isolation”, SPE-186930-MS, 2017.
[17] Antunes, T, Blanc, R., et.al., “First Application of Foamed Cement for production Operation in Ultradeep Well: Case History”, OTC-27970-MS, 2017.
[18] Cunningham, E, Heathman, J., et.al., “Defining the Difference Between Laboratory and Field Generated Foamed Cement”, OTC-27581-MS, 2017.
[19] Santos, L, Taleghani, A., “Smart Expandables polymer Cement Cement Additive to Improve Zonal Isolation”, SPE-191822-18ERM-MS, 2018.
[20] Yugay, A., Nestyagin, A., “Consolidated Approach for Effective Zonal Isolationm Evaluation and Remediation”, SPE-197807-MS, 2019.