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 Wadsworth
Ranch
The Wadsworth Ranch Prospect is located in the
northwest part of Matagorda County . Geologically the prospect
is a low relief closure on the southwest flank of Midfields field.
Both subsurface data and 3-D seismic data confirm this structure.
Three key wells are located on the flank of the structure; the
Bay Rock Operating #1 Wadsworth , the Cico #1 Wadsworth , and
the Union Producing #1 Wadsworth .
The Union Producing #1 Wadsworth conventionally
cored the 9150' sand and had oil odor, fluorescence, and cut.
An open-hole DST recovered oily salt water, oily mud and salt
water.
The Bay Rock well had a formation test in the
9150' sand (top at 9139') at 9146.5 feet that recovered 35 cu.
ft. gas, 5000 cc oil and no water. ISIP was 3044 psi and final
SIP of 3165 psi . The seismic data indicates the proposed well
will encounter this sand approximately 15 to 20 feet high to this
well.
The Cico well ran 4' structurally low to the
Bay Rock well at the 9150' sand and attempted a formation test
at 9153', which was unsuccessful (mud run). However, their formation
test in the Collup sand (above the 9150' sand) recovered 42 cu.
ft. of gas and 2000 cc filtrate. ISIP was 3632 psi and final SIP
was still building when shut in. They perforated the sand and
produced gas at rates ranging from 85-120 Mcf per day for approximately
two weeks. After attempting a deeper completion, they came back
up to the Collup sand and attempted a frac , which screened out
immediately.
Additionally, the four Union Producing McDowell
wells across the syncline produced over 1,000,000 BO from the
9150' sand.
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