1887

Abstract

Summary

Drilling in geothermal wells is always the most expensive part of operation. Also, we know when go deep in layers, we always can absorb more heat and energy. This case can make some part of operation more expensive to go from shallow geothermal reservoirs to deep geothermal reservoirs. Managed pressure drilling (MPD) is an effective solution to obviate the drilling problems of narrow drilling window between the pore and fracture pressure, such as well kick and loss and well collapse and stuck. The Constant Bottom Hole Pressure (CBHP) technique, one of the MPD variants, was selected to freeze bottom hole pressure in narrow area between pore and fracture pressure as a safe method to drill without loss and gain. In this paper tried to control the ECD in upper sections to be able to drill in narrow drilling margin. Drilling window between collapse and fracture pressure is normally closed due to geological reasons, which in turn leads to creation of a boundary at which the dynamic formation losses could not be properly controlled.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201702135
2017-09-03
2024-04-20
Loading full text...

Full text loading...

References

  1. Gudmundsson, A.
    2003. Surface stresses associated with arrested dykes in rift zones. Bulletin volcanol. Original article. n.65. pp.606–619.
    [Google Scholar]
  2. 2009. Toughness and failure of volcanic edifices. Tectonophysics471, 27–35.
    [Google Scholar]
  3. 2011. Rock Fractures in Geological Process. 1st. ed. Cambridge. London. UK. 578p.
    [Google Scholar]
  4. Gudmundsson, A., Brenner, S.L.
    2001. How hydrofractures become arrested, Terra Nova, 13, No. 6, 456–462.
    [Google Scholar]
  5. Gudmundsson, A. and Mohajeri, Nahid
    . 2013. Relations between the scaling exponents, entropies, and energies of fractures networks. Bull. Soc. géol. France, 2013, t. 184, no 4, pp. 377–387.
    [Google Scholar]
  6. Gudmundsson, A., Kusumoto, S., Simmenes, T.H., Philipp, S.L., Larsen, B., Lotveit, I.F.
    2012. Effects of overpressure variations on fracture apertures and fluid transport. Tectonophysics, Volume 581, 18 December 2012, pp. 220–230.S. Tian, et al. (2007). Parametric Analysis of MPD Hydraulics. SPE/IADC 108354.
    [Google Scholar]
  7. J.Zare and S. R.Shadizadeh
    (2014). Managed Pressure Drilling to Increase Rate of Penetration and Reduce Formation Damage. Petroleum Science and Technology, Doi: 10.1080/10916466.2010.540618.
    https://doi.org/10.1080/10916466.2010.540618 [Google Scholar]
  8. E.Tercan, M. V.Kok
    , (2012). Managed Pressure Drilling Techniques, Equipments and Applications. Energy Sources, Doi: 10.1080/15567036.2010.516319.
    https://doi.org/10.1080/15567036.2010.516319 [Google Scholar]
  9. V.Tavakoli, et al.
    (2010). Diagenetic Controlled reservoir Quality of South Pars Gas Field an Integrated Approach. Comptes Rendus Geoscience, Doi: 10.1016/j.crte.2010.10.004.
    https://doi.org/10.1016/j.crte.2010.10.004 [Google Scholar]
  10. Wellbore instability during plasma torch drilling in geothermal reservoirs’, Mohsen Bazargan, Philip Meredith, Nathaniel Forbes Inskip Agust Gudmundsson, M.Soliman, M.Habibpour, A.Rezaei, J.Browning, June 28—July 1, 2015, 49th US Rock Mechanics / Geomechanics Symposium held in San Francisco, CA, USA,+
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201702135
Loading
/content/papers/10.3997/2214-4609.201702135
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error