Quebec Anticosti Island drillable structures identified

Junex Inc., Quebec City, Que., said processed 2D seismic data clearly indicate drillable structural and stratigraphic elements associated with the Macasty shale and deeper conventional reservoir targets on the company’s acreage on Anticosti Island in the Gulf of St. Lawrence offshore Quebec.

Junex plans to select the top five drilling locations in coming weeks from the 224 line-km of 2D seismic that it shot in mid-2012 on its 233,275-acre block of exploratory permits on the island (OGJ Online, July 16, 2012). Junex said its interpretation of the data is well advanced and that it has identified a number of prospective structures.

The operator noted that consulting engineers have previously issued a best estimate of undiscovered shale oil initially in place in the Macasty on its acreage at 12.2 billion bbl.

Each prospect’s primary objectives include conventional reservoirs in geological formations underlying the Macasty, including the Trenton-Black River and Romaine (Ellenburger-equivalent) carbonate sequences. The secondary objective is the overlying Macasty, whose oil potential the company intends to further evaluate via a combination of coring, specialized core analysis, and other analytical methods during and after future drilling.

Drilling permits will be sought in preparation for the drilling of five conventional vertical wells as early as the next drilling season in mid-2013.

Geologically, Junex said, its acreage on Anticosti is principally situated to the south of and on the deeper side of the major Jupiter Fault Zone. With respect to the Macasty, it is the stratigraphic equivalent of the Utica shale in the St. Lawrence Lowlands and the oil-rich Utica/Point Pleasant shale in Ohio.

Junex’s acreage is dominantly situated in the Deep Macasty Fairway, where, based on available information, the company’s mapping indicates that the Macasty averages 80 m thick or twice the thickness encountered in earlier wells drilled by others north of the Jupiter fault outside the Deep Fairway.

Junex’s interpretation of pertinent geochemical lab data indicates that the organic-rich Macasty on its Deep Fairway acreage places it well within the oil window, which compares much more favorably with published findings for the oil-rich Utica/Point Pleasant shale in Ohio and the Eagle Ford shale in Texas than currently does the less thermally mature Macasty outside the Deep Fairway.

Based on its direct experience with the Utica shale in the St. Lawrence Lowlands at varying formation depths and more specifically with the oil it recovered from the Utica shale in the Junex St-Augustin-1 well in 2009, Junex considers that the greater formation depth of the Macasty on its acreage in the Deep Fairway should translate into greater formation pressure or reservoir energy that could yield a greater oil production potential than the Macasty in shallower areas outside the Deep Fairway.

Furthermore, based on the consulting engineers’ best estimate, the Macasty on Junex’s acreage has an average potential original oil in place of 33.5 million bbl/sq mile, which appears to be much superior to that calculated for areas of the island controlled by other operators.

With respect to the deeper conventional reservoirs including the Trenton-Black River and Romaine, other operators drilled many wells the past 15 years that targeted these formations in areas north of the Jupiter fault. Available well data and published results show that those wells were not commercially successful. Where porous reservoir rock was encountered, formation water was dominantly present and only minor hydrocarbon shows were observed.

In Junex’s opinion, the Jupiter fault could have acted as a sealing barrier to the migration of oil from mature source rocks on the south side of the fault into these geological sequences on the north side. On the basis of this geological concept and its recently-acquired seismic data Junex intends to drill the five new conventional vertical wells on its acreage south of the fault, targeting mainly the Trenton-Black River and Romaine formations.

Related Articles

Repsol to acquire Talisman in $13 billion deal

12/16/2014 Spain’s Repsol SA has agreed to acquire all shares of Talisman Energy Inc. of Calgary for $8.3 billion along with assumed debt of $4.7 billion. The...

Eni reports flow test rates for well offshore Congo (Brazzaville)

12/15/2014 A production test conducted by Eni SPA on the Minsala Marine 1 NFW well offshore Congo (Brazzaville) flowed 5,000 b/d of 41° gravity oil and 14 MMs...

Cook to head DONG Energy E&P group

12/15/2014 David B. Cook has been named group executive vice-president and chief executive officer for exploration and production at DONG Energy, Fredericia, ...

Security takes center stage

12/15/2014

Thwarting terrorists, repelling pirates, and routing organized crime: sounds like themes of familiar, big-budget Hollywood movies.

Frac ban exemption made in Broomfield

12/12/2014 A Colorado District Court judge has ruled that a hydraulic fracturing ban in Broomfield, Colo., does not apply to an operator that entered into an ...

Uncertainty lingers about local content rules as Mexico prepares for competitive bid round

12/12/2014 The energy industry around the world has it eyes on Mexico as the country implements constitutional and legislative reforms that are set to open it...

COGA calls frac fluid study "sound science"

12/12/2014 Chemicals used in fracturing fluid appear to be no more toxic than chemicals commonly found in homes, said an analysis by University of Colorado Bo...

Study links methane contamination in water wells to poor well construction-not fracing-in Marcellus

12/12/2014 A new study found that fugitive gas contamination at eight clusters of water wells in the Marcellus and Barnett shale regions might be linked to we...

WoodMac: US unconventional enters new stage

12/12/2014 The unconventional oil and gas revolution is entering into a new stage with drilling and completion techniques pioneered in unconventional plays no...

White Papers

What is System Level Thermo-Fluid Analysis?

This paper will explain some of the fundamentals of System Level Thermo-Fluid Analysis and demonstrate...

Accurate Thermo-Fluid Simulation in Real Time Environments

The crux of any task undertaken in System Level Thermo-Fluid Analysis is striking a balance between ti...

6 ways for Energy, Chemical and Oil and Gas Companies to Avert the Impending Workforce Crisis

As many as half of the skilled workers in energy, chemical and oil & gas industries are quickly he...
Sponsored by

AVEVA NET Accesses and Manages the Digital Asset

Global demand for new process plants, power plants and infrastructure is increasing steadily with the ...
Sponsored by

AVEVA’s Approach for the Digital Asset

To meet the requirements for leaner project execution and more efficient operations while transferring...
Sponsored by

Diversification - the technology aspects

In tough times, businesses seek to diversify into adjacent markets or to apply their skills and resour...
Sponsored by

Engineering & Design for Lean Construction

Modern marketing rhetoric claims that, in order to cut out expensive costs and reduce risks during the...
Sponsored by

Object Lessons - Why control of engineering design at the object level is essential for efficient project execution

Whatever the task, there is usually only one way to do it right and many more to do it wrong. In the c...
Sponsored by

Available Webcasts



The Future of US Refining

When Fri, Feb 6, 2015

Oil & Gas Journal’s Feb. 6, 2015, webcast will focus on the future of US refining as various forces this year conspire to pull the industry in different directions. Lower oil prices generally reduce feedstock costs, but they have also lowered refiners’ returns, as 2015 begins with refined products priced at lows not seen in years. If lower per-barrel crude prices dampen production of lighter crudes among shale plays, what will happen to refiners’ plans to export more barrels of lighter crudes? And as always, refiners will be affected by government regulations, particularly those that suppress demand, increase costs, or limit access to markets or supply.

register:WEBCAST


Oil & Gas Journal’s Forecast & Review/Worldwide Pipeline Construction 2015

When Fri, Jan 30, 2015

The  Forecast & Review/Worldwide Pipeline Construction 2015 Webcast will address Oil & Gas Journal’s outlooks for the oil market and pipeline construction in a year of turbulence. Based on two annual special reports, the webcast will be presented by OGJ Editor Bob Tippee and OGJ Managing Editor-Technology Chris Smith.
The Forecast & Review portion of the webcast will identify forces underlying the collapse in crude oil prices and assess prospects for changes essential to recovery—all in the context of geopolitical pressures buffeting the market.

register:WEBCAST



On Demand

Optimizing your asset management practices to mitigate the effects of a down market

Thu, Dec 11, 2014

The oil and gas market is in constant flux, and as the price of BOE (Barrel of Oil Equivalent) goes down it is increasingly important to optimize your asset management strategy to stay afloat.  Attend this webinar to learn how developing a solid asset management plan can help your company mitigate costs in any market.

register:WEBCAST


Parylene Conformal Coatings for the Oil & Gas Industry

Thu, Nov 20, 2014

In this concise 30-minute webinar, participants have an opportunity to learn more about how Parylene coatings are applied, their features, and the value they add to devices and components.

register:WEBCAST


Careers at TOTAL

Careers at TOTAL - Videos

More than 600 job openings are now online, watch videos and learn more!

 

Click Here to Watch

Other Oil & Gas Industry Jobs

Search More Job Listings >>
Stay Connected