The efficiency of drilling is very important for oil companies. One of the most important areas of application of rock mechanics in drilling is the solution of the problem of failure of the walls of the wellbore. In this work, the case is considered when, at different depths, the shape of the wellbore breakouts changes from elliptical to toroidal. Based on the results of the analysis of the geomechanical model, it was shown that the change in the shape of the breakouts is associated with a change in the inclination of the well and the redistribution of stresses.


Article metrics loading...

Loading full text...

Full text loading...


  1. BanikN, KoesoemadinataA, and El-KaseehKG
    . “Young’s modulus from point-receiver surface seismic data.” SEG. Denver: SEG Denver, 2010. 1.
    [Google Scholar]
  2. FjaerE, HoltRM, HorsrudP, RaaenAM, RisnesR
    . Petroleum Related Rock Mechanics. Amsterdam: Elsevier, 1992.
    [Google Scholar]
  3. GuoB, YuX, KhoshgahdamM
    . “A simple analytical model for predicting productivity of multifractured horizontal wells.” SPE, 2009: 1–7.
    [Google Scholar]
  4. J.Kumar
    . “The effect of Poisson’s ratio on rock properties.” SPE of AIME, 0615, 1976: 1–5.
    [Google Scholar]
  5. M, Zoback
    . Reservoir Geomechanics. Stanford: Cambridge University Press, 2007.
    [Google Scholar]
  6. PA, Charlez
    . Rock Mechanics. Paris: Editions Technip, 1991.
    [Google Scholar]
  7. SubhashNS, VincentMC, RodriquesR, PalishT
    . “Fracture orientation and proppant selection for optimizing production in horizontal wells.” SPE, 2010: 2–3.
    [Google Scholar]
  8. TurkN, DearmanWR
    . “Estimation of friction properties of rocks from deformation measurements.” ARMA. Tuscaloosa: ARMA Conference Paper, 1986. 5.
    [Google Scholar]
  9. YaleDP, JamiesonWH
    . “Static and dynamic mechanical properties of carbonates.” ARMA. Rotterdam: ARMA Conference Paper, 1994. 4–5.
    [Google Scholar]

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