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Abstract

Summary

This paper analyses the lost circulation data (rate, instantaneous downhole pressure and operational conditions) of a Southern Iraq oilfield to develop a mechanism based understanding of the reported mud losses.

Mud losses with varying severity have been reported in all the 27 development wells drilled in the field since 2012. Lost circulation during drilling was identified as the primary cause of Non Productive Time (NPT) for the development wells. Besides cost escalation in terms of lost mud and rig time, uncontrolled mud losses can trigger shale collapse, lead to loss of well control and safety risks.

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/content/papers/10.3997/2214-4609.201414354
2015-11-16
2020-07-07
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References

  1. Rai, U. B., Ghodke, N., Schutjens, P., & Shete, K.
    (2014, March 4). Fracture Gradient From Leak-Off Test: Pitfalls of Using LOT Data From Non-Vertical Wells. Society of Petroleum Engineers. doi:10.2118/167963‑MS
    https://doi.org/10.2118/167963-MS [Google Scholar]
  2. Sissakian, V. K. and Al-Mousawi, H.A.
    , 2007. Karstification and related problems, Examples from Iraq. Iraqi Bull. Geol. Min., 3 (1), p. 1 – 12.
    [Google Scholar]
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