Update on New York TrentonBlack River Play andIntroduction to Matejka #1 Core
Taury Smith and Richard NyahayNew York State Museum
Acknowledgments
• John Martin, NYSERDA• Tom Mroz, NETL, DOE• Dave Harris, KGS
Trenton BlackRiver Fields
Matejka #1 Core
• Drilled in 1975 by Shell Oil Co.• Missed gas reservoir by less than 1/2 mile• Cored several intervals in Utica, Trenton,
and Black River• Only core we have from TBR play to date
Matejka #1 Trenton Group Core
Abundant fractures/brecciation. Nomatrix dolomite, common fracturefilling dolomite
Mat 9704
Dolomite-cementedbreccia in thin-beddedmudstone and shalylimestone
Mat 9781.5 Mat 9787.5
Open porosity inextensional dolomiteand calcite-filledfracture
LimeMudstone
ShalyLimestone
Open pore
Small fault mineralized with dolomiteand calcite
Mat 9790
Mat 9796 1 mmFractal miniature of dilational structures
Mat 9797.5 Multiple calcite-filled fracture episodes 1 mm
Mat 9800.5 1 mmBitumen in calcite fracture fills in limestone
Mat 9820 Porosity in very coarse dolomite
Pore
1 mm
Mat 9829 1 mmBitumen in fracture and pores
Gloades Corners Road Field
1 mmMat 9831 Very coarse saddle dolomite fills vein,finer dolomite replaces matrix
Mat 9834 0.5 mmDolomite-filled fracture with strange“brushed” fabric
Mat 9845 0.5 mmBitumen in interparticle pores
Matejka #1 Black River Core:
No fractures, little dolomite
Stable Isotopes
-1.00
0.00
1.00
2.00
3.00
4.00
5.00
6.00
-14.00 -12.00 -10.00 -8.00 -6.00 -4.00 -2.00 0.00
δ18O
13C
Limestone (<50% dolomite) Dolomite (>90% dolomite) 50-90% dolomite
Seaw
ater
dolo
mite
Ongoing Work
• Sr isotopes• Fluid inclusions• Cuttings• Sequence-stratigraphic correlation, isopachs
of each sequence in study area• Work with KGS on hydrothermal dolomite
outcrops and link to New York