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

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