This study investigates shale–fluid interactions through experimental approaches under simulated in situ conditions to determine the effects of bedding plane orientation on fluid flow through shale. Current wellbore stability models are developed based on isotropic conditions, where fluid transport coefficients are only considered in the radial direction. This paper also presents a novel mathematical method, which takes into account the three-dimensional coupled flow of water and solutes due to hydraulic, chemical, and electrical potential imposed by the drilling fluid and/or the shale formation. Numerical results indicate that the presence of microfissures can change the pore pressure distribution significantly around the wellbore and thus directly affect the mechanical strength of the shale.

References

References
1.
Lyons
,
K. D.
,
Honeygan
,
S.
, and
Mroz
,
T.
,
2008
, “
NETL Extreme Drilling Laboratory Studies High Pressure High Temperature Drilling Phenomena
,”
ASME J. Energy Resour. Technol.
,
130
(
4
), p.
043102
.10.1115/1.3000139
2.
Hamayun
,
R.
,
2011
, “
Remote Workflows Put Digital Resources to Work to Reduce NPT
,”
Drill. Contract.
,
67
(
2
). Available at: http://www.drillingcontractor.org/remote-workflows-put-digital-resources-to-work-to-reduce-npt-8783
3.
Reid
,
P. I.
, and
Minton
,
R. C.
,
1992
, “
New Water-Based Muds for Tertiary Shale Control
,”
SPE Drill. Eng.
,
7
(
4
), pp.
237
240
.10.2118/23077-PA
4.
Clark
,
D. E.
, and
Saddok
,
Benaissa.
,
1993
, “
Aluminum Chemistry Provides Increased Shale Stability With Environmental Acceptability
,”
SPE
Asia Pacific Oil and Gas Conference
, February 8–10, Singapore, China.10.2118/25321-MS
5.
Patel
,
A. D.
,
2009
, “
Design and Development of Quaternary Amine Compounds: Shale Inhibition With Improved Environmental Profile
,”
SPE
International Symposium on Oil Field Chemistry
, April 20–22, The Woodlands, Texas.10.2118/121737-MS
6.
Nasiri
,
M.
,
Ashrafizadeh
,
S. N.
, and
Ghalambor
,
A.
,
2009
, “
Synthesis of a Novel Ester-based Drilling Fluid Applicable to High Temperature Conditions
,”
ASME J. Energy Resour. Technol.
,
131
(
1
), p.
013103
.10.1115/1.3066367
7.
Taner
,
S.
,
Chenevert
,
M. E.
, and
Sharma
,
M.
,
2009
, “
Minimizing Water Invasion in Shales Using Nanoparticles
,”
SPE
Annual Technical Conference
, October 4–7, New Orleans, LA.10.2118/124429-MS
8.
Abdo
,
J.
, and
Haneef
,
M. D.
,
2012
, “
Nano-Enhanced Drilling Fluids: Pioneering Approach to Overcome Uncompromising Drilling Problems
,”
ASME J. Energy Resour. Technol.
,
134
(
1
), p.
014501
.10.1115/1.4005244
9.
Chenevert
,
M.
,
1970
, “
Shale Alteration by Water Adsorption
,”
J. Pet. Technol.
,
22
(
9
), pp.
1141
1148
.10.2118/2401-PA
10.
Ewy
,
R. T.
, and
Stankovich
,
R. J.
,
2002
, “
Shale-Fluid Interactions Measured Under Simulated Downhole Conditions
,”
SPE/ISRM
Rock Mechanics Conference
, October 20–23, Irving, TX.10.2118/78160-MS
11.
Fjær
,
E.
,
Holt
,
R. M.
,
Nes
,
O.-M.
, and
Sønstebø
,
E. F.
,
2002
, “
Mud Chemistry Effects on Time-Delayed Borehole Stability Problems in Shales
,”
SPE/ISRM
, October 20–23 Irving, TX.10.2118/78163-MS
12.
Van Oort
,
E.
,
Hale
,
A. H.
,
Mody
,
F. K.
, and
Roy
,
S.
,
1996
, “
Transport in Shales and the Design of Improved Water-Based Shale Drilling Fluids
,”
SPE Drill. Completion
,
11
(
3
), pp.
137
146
.10.2118/28309-PA
13.
Lomba
,
R. F. T.
,
Chenevert
,
M. E.
, and
Sharma
,
M. M.
,
2000
, “
The Role of Osmotic Effects in Fluid Flow Through Shales
,”
J. Pet. Sci. Eng.
,
25
(
1
), pp.
25
35
.10.1016/S0920-4105(99)00029-7
14.
Yu
,
M.
,
Chenevert
,
M. E.
, and
Sharma
,
M. M.
,
2003
, “
Chemical–Mechanical Wellbore Instability Model for Shales: Accounting for Solute Diffusion
,”
J. Pet. Sci. Eng.
,
38
(
3
), pp.
131
143
.10.1016/S0920-4105(03)00027-5
15.
Lu
,
H.
,
Yu
,
M.
,
Miska
,
S.
,
Takach
,
N.
, and
Bloys
,
J.
,
2011
, “
Modeling Chemically Induced Pore Pressure Alterations in Near Wellbore Region of Shale Formations
,”
SPE
Eastern Regional Meeting, August 17–19, Columbus, OH.10.2118/149415-MS
16.
Rahman
,
M. K.
,
Zhixi
,
C.
, and
Rahman
,
S. S.
,
2003
, “
Modeling Time-Dependent Pore Pressure Due to Capillary and Chemical Potential Effects and Resulting Wellbore Stability in Shales
,”
ASME J. Energy Resour. Technol.
,
125
(
3
), pp.
169
176
.10.1115/1.1595111
17.
Nes
,
O.-M.
,
Fjaer
,
E.
,
Tronvoll
,
J.
,
Kristiansen
,
T. G.
, and
Horsrud
,
P.
,
2012
, “
Drilling Time Reduction Through an Integrated Rock Mechanics Analysis
,”
ASME J. Energy Resour. Technol.
,
134
(
3
), p.
032802
.10.1115/1.4006866
18.
Nguyen
,
V.
, and
Abousleiman
,
Y.
,
2010
, “
Real-Time Wellbore-Drilling Instability in Naturally Fractured Rock Formations With Field Applications
,”
IADC/SPE
Asia Pacific Drilling Technology Conference
, November 1–3, Ho Chi Minh City, Vietnam.10.2118/135904-MS
19.
Edwards
,
S.
,
Matsutsuyu
,
B.
, and
Willson
,
S.
,
2004
, “
Imaging Unstable Wellbores While Drilling
,”
SPE Drill. Completion
,
19
(
4
), pp.
236
243
.10.2118/79846-PA
20.
Wu
,
B.
, and
Tan
,
C. P.
,
2010
, “
Effect of Shale Bedding Plane Failure on Wellbore Stability-Example From Analyzing Stuck-Pipe Wells
,”
Proceedings of the 44th U.S. Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium
, June 27–30, Salt Lake City, UT.
21.
Okland
,
D.
, and
Cook
,
J. M.
,
1998
, “
Bedding-Related Borehole Instability in High-Angle Wells
,”
SPE/ISRM
Rock Mechanics in Petroleum Engineering
, pp. July 8–10, Trondheim, Norway.10.2118/47285-MS
22.
Nguyen
,
V.
, and
Abousleiman
,
Y.
,
2009
, “
Naturally Fractured Reservoir Three-Dimensional Analytical Modeling: Theory and Case Study
,”
SPE
Annual Technical Conference and Exhibition
, October 4–7, New Orleans, LA.10.2118/123900-MS
23.
Nguyen
,
V.
,
Abousleiman
,
Y.
, and
Hemphill
,
T.
,
2009
, “
Geomechanical Coupled Poromechanics Solutions While Drilling in Naturally Fractured Shale Formations With Field Case Applications
,”
SPE
Annual Technical Conference
, October 4–7, New Orleans, LA.10.2118/123901-MS
24.
Holder
,
J.
,
Koelsch
,
T.
,
Fruth
,
L.
, and
Donath
,
F.
,
1998
, “
Laboratory Measurement of Permeability in Rock
,”
Proceedings of the 29th U.S. Symposium on Rock Mechanics (USRMS)
, June 13–15, Minneapolis, MN.
25.
Yu
,
M.
,
2002
, “
Chemical and Thermal Effects on Wellbore Stability of Shale Formations
,” Ph.D. dissertation, The University of Texas at Austin, Austin, TX.
26.
Sinha
,
S.
,
Braun
,
E. M.
,
Passey
,
Q. R.
,
Leonardi
,
S. A.
,
Wood
,
A. C.
, III
,
Zirkle
,
T.
,
Boros
,
J. A.
, and
Kudva
,
R. A.
,
2012
, “
Advances in Measurement Standards and Flow Properties Measurements for Tight Rocks Such as Shales
,”
Proceedings of the SPE/EAGE European Unconventional Resources Conference and Exhibition-From Potential to Production
. Available at: http://www.earthdoc.org/publication/publicationdetails/?publication=58168.
27.
Lakshminarayanaiah
,
N.
,
1969
,
Transport Phenomena in Membranes
,
Academic Press
,
New York
.
28.
Dokhani
,
V.
,
2005
, “
Modeling of Chemically Induced Transient Pore Pressure in Shale Formations
,” M.Sc. thesis, University of Tulsa, Tulsa, OK.
You do not currently have access to this content.