Laboratory and Field Validation of a Sealant System for Critical Plug-and-Abandon Applications
- Alexander Nagelhout (Well Engineering Partners B.V.) | Martin G.R. Bosma (NAM) | Paul Mul (NAM) | Gerbrand Krol (NAM) | Hans van Velzen (NAM) | Jason Joldersma (NAM) | Simon G. James (Schlumberger) | Bernard Dargaud (Schlumberger) | Ron Schreuder (Schlumberger) | Frederic Théry (Schlumberger)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- September 2010
- Document Type
- Journal Paper
- 314 - 321
- 2010. Society of Petroleum Engineers
- 1.6.11 Plugging and Abandonment, 1.14 Casing and Cementing, 4.3.4 Scale
- expansion, flexible, cement, abandon, plug
- 3 in the last 30 days
- 910 since 2007
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This paper presents case histories and discusses the laboratory validation of a sealant system for plug-and-abandon (P&A) operations in critical gas wells close to habitations. To ensure long-term isolation both inside and outside the original casing, the plan was to mill out the casing and cement and to place the plug from rock face to rock face. The milled-out section was planned so that in the worst-case scenario, the differential gas pressure would have to be supported by 25 m of cement plug, even though a greater height of cement would be placed inside the original casing above the milled-out section.
Two cement systems were designated as candidates for the plugging operation with slurry properties suitable for the application. The gas-sealing ability of the selected systems was validated with both small-scale and large-scale tests. One system, exhibiting both high flexibility and expansion, met the stringent specifications and did not leak until a differential pressure of more than four times the specification was applied. The paper will discuss the parameters of the selected system, thus providing guidelines for system selection for critical plugging operations. A detailed case history of one well (two plugs) is given along with the results from four other wells.
|File Size||769 KB||Number of Pages||8|
Adisoma, G.S. 1996. Dynamic Loading Impact on Cement Borehole Seals. InSealing of Boreholes and Underground Excavations in Rock, ed. K.Fuenkajorn and J.J.K. Daemen, Chap. 4, 40-64. London: Chapman & Hall.
API BULL 5C3, Formulas and Calculations for Casing, Tubing, Drill Pipeand Line Pipe Properties, sixth edition amendment. 1999. Washington, DC:API.
API TR 10TR2, Shrinkage and Expansion in Oilwell Cements, firstedition. 1997. Washington, DC: API.
ASME B16.5-1996--Pipe Flanges and Flanged Fittings NPS ½ through NPS 24Metric/Inch Standard, Addenda (a). 1998. New York: ASME.
Barclay, I., Pellenbarg, J., Tettero, J., Pfeiffer, J., Slater, H., Staal,T., Stiles, D., Tilling, G., and Whitney, C. 2001. The Beginning of the End: AReview of Abandonment and Decommissioning Practices. Oilfield Review 13 (4): 28-41.
Barclay, I.S., Johnson, C.R., Staal, T.W., Choudhary, S., and Al-Hamandani,A. 2004. Utilizing InnovativeFlexible Sealant Technology in Rigless Plug and Abandonment. Paper SPE89622 presented at the SPE/IcoTA Coiled Tubing Conference and Exhibition,Houston, 23-24 March. doi: 10.2118/89622-MS.
Bosma, M.G.R., Cornelissen, E.K., and Schwing, A. 2000a. Improved ExperimentalCharacterisation of Cement/Rubber Zonal Isolation Materials. Paper SPE64395 presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition,Brisbane, Australia, 16-18 October. doi: 10.2118/64395-MS.
Bosma, M.G.R., Cornelissen, E.K., and Schwing, A. 2000b. Improved ExperimentalCharacterization of Cement/Rubber Zonal Isolation Materials. Paper SPE64762 presented at the International Oil and Gas Conference and Exhibition inChina, Beijing, 7-10 November. doi: 10.2118/64762-MS.
Bosma, M.G.R., Cornelissen, E.K., Reijrink, P.M.T., Mulder, G.S., and deWit, A. 1998. Development of aNovel Silicone Rubber/Cement Plugging Agent for Cost Effective Through-TubingWell Abandonment. Paper SPE 39346 presented at the IADC/SPE DrillingConference, Dallas, 3- 6 March. doi: 10.2118/39346-MS.
Boukhelifa, L., Moroni, N., James, S.G., Le Roy-Delage, S., Thiercelin,M.J., and Lemaire, G. 2005. Evaluation of Cement Systems for Oil-and Gas-Well Zonal Isolation in a Full-Scale Annular Geometry. SPE Drill& Compl 20 (1): 44-53. SPE-87195-PA. doi:10.2118/87195-PA.
Brufatto, C., Cochran, J., Conn, L., Power, D., El-Zeghaty, S.Z.A.A.,Fraboulet, B., Griffin, T. et al. 2003. From Mud to Cement--Building Gas Wells.Oilfield Review 15 (3): 62-76.
Le Roy-Delage, S., Baumgarte, C., Thiercelin, M., and Vidick, B. 2000. New Cement Systems for Durable ZonalIsolation. Paper SPE 59132 presented at the IADC/SPE Drilling Conference,New Orleans, 23-25 February. doi: 10.2118/59132-MS.