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Keywords: underbalanced drilling
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Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1280
... ABSTRACT: This paper presents a new efficient rock breaking method of Coiled Tubing Partial Underbalanced Drilling (CT-PUBD). Unlike conventional underbalanced drilling, it can achieve a partial underbalanced condition near the bit rather than the whole borehole. The rate of penetration...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0282
... pressure drilling mechanism shear failure drilling operation cleavage fracture Upstream Oil & Gas particle experiment underbalanced drilling tensile failure Wang diameter jet nozzle failure mechanism round sc-co 2 crystal particle round jet erosion hole characteristic fracture...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-205
... geomechanics single pdc cutter balanced pressure condition drilling response Reservoir Characterization Upstream Oil & Gas regime MSE mechanical specific energy pore space underbalanced drilling pore pressure experiment balanced condition annular pressure drilling rotary speed rock sample...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-260
... ABSTRACT Understanding borehole collapse mechanisms during underbalanced drilling (UBD) in shale is becoming increasingly important for the petroleum industry, due in particular to the implementation of the UBD technique in operational practices. However, it is challenging to determine...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-433
...). Underbalanced drilling in shale usually increases the risk of borehole instability due to yielding or failure of the rock adjacent to the borehole. In addition, shale has both a ductile and brittle nature. Material plasticity is strongly influenced by the consolidation and material dilation process...
Proceedings Papers

Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-097
... Abstract Theoretical development of the rock strength correlation needed in the ROP modeling where both the overbalanced and underbalanced drilling condition is considered. Prediction of bottom hole pressure for UBD operations with aerated or foam drilling Correlation from...

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