Application of Extension Hanger in Gas Well Cementation of Narrow Layers Pressure Windows

Abstract:

As a cat well in Mahudang of Burma on anticline structure zone, YH-1 encountered narrow formation pressure window stratum in the process of drilling with the problem that loss of filtration is serious and the speed of air cutting rises rapidly. Application of drilling liner hanger into cementation, combined with expansive slurry system in well YH-1 has met cementing requirements. Well sections are qualified and sealing sections of high quality amount to 49.4 percent. The field application results display that the usage of drilling liner hanger in narrow formation pressure window well section, associated with appropriate slurry system are able to satisfy well cementation requirements.

• Periodical: Advanced Materials Research (Volume 868)
• Pages: 597-600
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.868.597
• Online since: December 2013
• Authors: Yuan Hong Song, Fei Gao*, Fu Hai Zhong, Xuan Yin, Jin Bo Wu, Li Ying Tang
• Keywords: Drilling Liner Hanger, Expansion Cement, Gas Well, Narrow Safe Density Window, Packer

References

[1] Zhang Y., Li X.F., Li J.G. Application of expandable liner hanger in cementing the high-pressure gas wells. Nature Gas Industry. 2009, 29(8): 57-59. (In Chinese).

[2] Wu H.B., Liu Z.T., Zhou J. Cementing Techniques for Gas Well Patolon-2 in Myanmar. Oil Drilling & Production Technology. 2012, 34(1): 43-45. (In Chinese).

[3] Si W.C., Guo C.H. Ma L.R. Application and Technology of Expandable Liner Hanger. Oil Field Equipment. 2006, 35(4): 100~102. (In Chinese).

[4] Zhang M.C., Zhang H.J., Wang X.B. Application of External Casing Packer In Completion of High Pressure, Low Permeability Reservoir. Oil Drilling & Production Technical, 1999, 21(2): 45~47. (In Chinese).

[5] Zhang Z.F., Li Y.S. The Application of the Drilling Fluid technology of Extending the Safe Density Windows in Tuha Oilfield. Drilling fluid & Complete fluid. 2008, 25(3): 55-57. (In Chinese).