Instead, very distinct mound-like structures are seen
associated with seeps at two locations east of Hudson Strait. The presence of significant cold water coral
in close proximity to the active seepage sites may show a link between seafloor petroleum seepage and
coral reef development similar to that observed offshore Norway.
Close examination of the near surface seismic character led to the interpretation of what was originally
seen as seismic noise in vintage data, as likely being fluid escape chimneys or gas pipes, along the eastern
edge of the Hekja structural complex, where favourable hydrocarbon trapping conditions are present.
No active seeps were seen there; this may be due to other factors, such as the nature of the fluids that
are escaping or the possibility of self sealing activity by biological agents such as bacterial matting with
associated carbonate hard-ground formation.
One seep anomaly was noted relatively close to the major basaltic eruptive complex near the Gjoa G-
37 well. This may be due to the presence of volcaniclastic- hosted hydrocarbons similar in style to those
recently discovered at the Rosebank field in Paleocene volcanics in the Faroe-Shetland Basin. The
occurrence of an active seep in a volcanically-dominated terrain raises the potential for a radical shift in
accepted types of petroleum leads and where they may occur.
The presence of apparent oil seepage versus the past history of finding only gas-prone accumulations
is a strong indicator that a second, oil-prone petroleum system exists in the Saglek Basin. The signs of
active petroleum systems as shown by oil seep anomalies with confirming seismic evidence of discrete
sea floor structures in close proximity makes a compelling argument for re-examining these areas with
an eye towards stratigraphic instead of structural plays
Instead, very distinct mound-like structures are seenassociated with seeps at two locations east of Hudson Strait. The presence of significant cold water coralin close proximity to the active seepage sites may show a link between seafloor petroleum seepage andcoral reef development similar to that observed offshore Norway.Close examination of the near surface seismic character led to the interpretation of what was originallyseen as seismic noise in vintage data, as likely being fluid escape chimneys or gas pipes, along the easternedge of the Hekja structural complex, where favourable hydrocarbon trapping conditions are present.No active seeps were seen there; this may be due to other factors, such as the nature of the fluids thatare escaping or the possibility of self sealing activity by biological agents such as bacterial matting withassociated carbonate hard-ground formation.One seep anomaly was noted relatively close to the major basaltic eruptive complex near the Gjoa G-37 well. This may be due to the presence of volcaniclastic- hosted hydrocarbons similar in style to thoserecently discovered at the Rosebank field in Paleocene volcanics in the Faroe-Shetland Basin. Theoccurrence of an active seep in a volcanically-dominated terrain raises the potential for a radical shift inaccepted types of petroleum leads and where they may occur.The presence of apparent oil seepage versus the past history of finding only gas-prone accumulationsis a strong indicator that a second, oil-prone petroleum system exists in the Saglek Basin. The signs ofactive petroleum systems as shown by oil seep anomalies with confirming seismic evidence of discretesea floor structures in close proximity makes a compelling argument for re-examining these areas withan eye towards stratigraphic instead of structural plays
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