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Keywords: borehole
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Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 1–5, 2015
Paper Number: SPE-173624-MS
... motion will be different compared to the surface motion due to the stick phase caused by variation of contact force between the drillstring and the borehole in the curved section of the bore hole. In long high deviated boreholes, the movement of the BHA and the corresponding surge and swab pressure...
Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 27–29, 2011
Paper Number: SPE-140753-MS
... Figure 5. Wellbore hoop stress for intact borehole, after fracture initiation, propagation and sealing In this section, we investigate effect of sealing fracture tip to increase fracture propagation pressure using an analytical solution derived by Abe et al., (1976) regarding...
Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 27–29, 2011
Paper Number: SPE-142265-MS
... assemblies in the 1980s created a new method of drilling directional wells. Steerable assemblies work by orienting a bent housing on the downhole mud motor and sliding along the borehole to achieve a change in well trajectory. Alternating between sliding and rotary drilling achieved the desired three...
Proceedings Papers

Paper presented at the Production and Operations Symposium, March 31–April 3, 2007
Paper Number: SPE-106998-MS
... Abstract A wellbore cement sheath is expected to provide zonal isolation and borehole integrity during well construction and well life. Cement sheaths mechanically interact with other elements in the wellbore region to stresses from geological processes and operational activities. Quantifying...
Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 24–27, 2001
Paper Number: SPE-67203-MS
... application amplitude borehole vibrator sensor wellbore dhov reservoir characterization partition log analysis upstream oil & gas rock property spe 67203 downhole orbital vibrator cole well logging geophone patent experiment logger new approach frequency Copyright 2001, Society of...
Proceedings Papers

Paper presented at the SPE Mid-Continent Operations Symposium, March 28–31, 1999
Paper Number: SPE-52188-MS
... input parameter borehole borehole stability modeling wellbore design spe 52188 horizontal stress chemical potential borehole prediction hole angle drilling fluids and materials shale pore pore pressure drilling fluid formulation drilling fluid selection and formulation Copyright 1999...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, April 2–4, 1995
Paper Number: SPE-29495-MS
... SPE Members Abstract This paper addresses the comparison and selection of failure criteria for in-situ rocks in borehole stability analysis. Five commonly used criteria are compared with field cases for mud weight design. The result of case studies indicates that the Mohr-Coulomb criterion...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, March 21–23, 1993
Paper Number: SPE-25504-MS
... stress ratio criterion rock anisotropy upstream oil & gas borehole tensor wellbore pressurization stability horizontal wellbore collapse failure mode borehole wall wellbore design relation pore pressure shear failure drilling anisotropy wellbore integrity spe 25504 matrix...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, April 7–9, 1991
Paper Number: SPE-21661-MS
... paper discusses the empirical modeling of typical downhole conditions that affect the TMD* ratio log and Introduces updated corrections that can be applied to compensate for them. Included In the modeling are effects due to varying borehole fluid salinity, casing and tubing diameter, and cement. A...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, April 7–9, 1991
Paper Number: SPE-21707-MS
... static formation temperatures. P. 701 production time circulation wellbore flow test borehole temperature distribution drillstem/well testing circulation period disturbance dimensionless temperature formation temperature production control determination reservoir surveillance...

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