Spatial Variability of Produced Water Quality In Permian Basin Binod K Chaudhary May 24, 2016 New Mexico State University Plant and Environmental Science
Spatial Variability of Produced Water Quality
In Permian Basin
Binod K Chaudhary
May 24, 2016
New Mexico State University Plant and Environmental Science
Study Area
• Western parts of Permian Basin
• Southeastern part of New Mexico and Western part of Texas
• Covers 4 counties in New Mexico and 12 counties in Texas
Delaware Basin
Central Basin Platform
Northwest Shelf
Permian BasinTexas
New Mexico
USGS National Produced Water Database v2.2
Clipped datasets of study area using ArcGIS
Sorted out dataset based on availability of TDS and formation names
Geostatistical analysis
Interpretation of Results
Methodology
Histo
gram
of
TDS
Cont
our
Map
of
TDS
Delaware Basin Central Basin Platform Northwest Shelf
Grou
p-1
Grou
p-2
Grou
p-3 Dep
th a
nd A
ge
Group-1
Group-2
Group-3
Depth
Variability of Water Constituents
Summary • High salinity (~400 g/L) of produced water was found to be
localized within the study area, and the salinity variation characterized both in lateral and vertical directions.
• Lower salinity was found in both the more shallow and deeper formations in Delaware Basin and Central Basin Platform.
• Highest salinity in Northwest Shelf was found in the more shallow formations.
• The observed variability in salinity can be attributed to variability in the history/evolution of the pore water (e.g., different rock and oil/gas exposure, sea water source composition, evaporation, and intrusion of meteoric water).
Acknowledgements
• Dr. Kenneth C Carroll
• Willman Spencer
Thank You!
(Questions?)
Meteoric : TDS <
75 g/L and Cl/SO4
< 50
Brines : TDS > 125
g/L and Cl/SO4 >
50
Mix: TDS = 75-125
g/L and Cl/SO4 <
50
Classification of Produced Water
Met
eoric
Brines
Mix
Stratigraphic Column of Geological FormationsAge
(group) Delaware Basin
Central Basin Platform
Northwest Shelf
Guadalupian (Artesia)
Tansill Yates Seven Rivers Queen Penrose Grayburg
Yates Seven Rivers Queen Penrose Grayburg
Yates Seven Rivers Penrose Queen Grayburg
Guadalupian (San Andres) San Andres San Andres San Andres
Guadalupian (Delaware)
Bell Canyon Brushy Canyon Cherry Canyon Delaware
Cherry Canyon Delaware
Leonardian
Glorieta Avalon Shale Bone Spring Yeso
Glorieta Blinebry Clear Fork Yeso Drinkard Abo
Glorieta Paddock Blinebry Clear Fork Tubb Yeso Drinkard Abo
(Wolfcamp) Wolfcamp Wolfcamp Wolfcamp
Pennsylvanian
Cisco Canyon Strawn Atoka Morrow
Cisco Canyon Strawn
Cisco Canyon Strawn Atoka Morrow
Devonian
Devonian Fusselman
Devonian Fusselman
Devonian Fusselman
Ordovician Ellenburger
Mckee Simpson Ellenburger
Ellenburger