Origin Energy, Apache make Bass Strait gas discoveries

Rick Wilkinson
OGJ correspondent

MELBOURNE, Dec. 7 -- Origin Energy Ltd., Sydney, has made a gas discovery with its Trefoil-1 wildcat on Bass basin Permit T/18P off Tasmania. It's one of two recent gas finds in Bass Strait.

In Trefoil-1, wireline logs, formation testing, and sampling confirmed 50 m of net gas pay over eight zones in the well in the Eastern View Coal Measures formation productive in Origin's nearby Yolla field.

Analysis so far indicates high-quality gas with a carbon dioxide content of about 3%, which is less than one sixth of the CO2 level at Yolla. Liquids content is 50-100 bbl/MMcf of gas.

Initial estimates suggest an in situ resource of 100-300 bcf of gas and 7-21 million bbl of associated liquids.

Origin will test production over two intervals: 3,040-47 m and 3,141-50 m. The company says these are across lower-quality reservoir sands.

In addition to Yolla field, which is nearing completion as part of the BassGas project to pipe gas to onshore facilities in Victoria, Origin has a smaller gas find in the White Ibis vicinity. Good results from Trefoil could see it developed along with White Ibis, with both fields' production funneled through Yolla and the BassGas system.

Holding interests in Trefoil-White Ibis-Yolla are Origin 41.4%, Sydney-based Australian Worldwide Exploration Ltd. 22.6%, the UK's CalEnergy Gas (Aust) Ltd. 23.5%, and Mitsui subsidiary Wandoo Petroleum Pty. Ltd. 12.5%.

Apache group discovery
Apache Energy Ltd., Perth, and partners made the second significant gas find in Bass Strait with its Longtom-2 appraisal well on Gippsland basin Permit Vic/P54 to the north of the Esso-BHP Billiton main producing area.

Longtom-2 flowed gas on test at the rate of 18-19 MMcfd gas from intervals 2,184-2,192.5 m deep and 2,212.5-2,243.5 m. The gas flowed through a 1 in. choke for 11 hr.

This is the first significant gas flow from the Tertiary Emperor formation in the Gippsland basin, and it confirms the potential of this zone, which had been a major concern before drilling.

The Longtom-2 well appraises an old Esso-BHP Petroleum Pty Ltd. discovery from the 1980s that was then considered noncommercial.

Apache is revisiting the well in light of recently more-favorable economics for gas production in southeastern Australia.

The well is being prepared for a production test of a separate zone in the reservoir section.

Apache holds a 62.5% interest, and Nexus Energy Ltd., Melbourne, 37.5%.

Related Articles

PHMSA proposes pipeline accident notification regulations

07/02/2015 The US Pipeline and Hazardous Materials Safety Administration has proposed new federal oil and gas pipeline accident and notification regulations. ...

FourPoint Energy to acquire Anadarko basin assets from Chesapeake

07/02/2015 FourPoint Energy LLC, a privately owned Denver company, plans to acquire oil and gas assets from Chesapeake Energy Corp. subsidiaries Chesapeake Ex...

BP to settle federal, state Deepwater Horizon claims for $18.7 billion

07/02/2015 BP Exploration & Production Inc. has agreed in principle to settle all federal and state claims arising from the 2010 Deepwater Horizon inciden...

API to issue recommended practice to address pipeline safety

07/01/2015 The American Petroleum Institute expects to issue a new recommended practice in another few weeks that addresses pipeline safety issues, but the tr...

Shell makes FID on Appomattox deepwater development in Gulf of Mexico

07/01/2015 Royal Dutch Shell PLC has taken a final investment decision (FID) on the Appomattox deepwater development, authorizing construction and installatio...

BHP, Woodside move to decommission Stybarrow field

07/01/2015 BHP Billiton Ltd. and Woodside Petroleum Ltd. have started preparations for decommissioning of the Stybarrow group of oil fields in production lice...

Tullow Oil provides production update on Jubilee, other fields

07/01/2015 Tullow Oil PLC reported that gross production for the Jubilee field offshore Ghana averaged 105,000 b/d in this year’s first half, up from 102,000 ...

FWS issues Shell letter of authorization on Chukchi Sea lease

07/01/2015 The US Fish & Wildlife Service issued Shell Gulf of Mexico Inc. a letter of authorization (LOA) related to the potential disturbance of polar b...

USGS: Water usage for fracturing varies widely across shale plays

07/01/2015 The volume of water required to hydraulically fracture wells varies widely across the country, according to the first national analysis and map of ...
White Papers

2015 Global Engineering Information Management Solutions Competitive Strategy Innovation and Leadership Award

The Frost & Sullivan Best Practices Awards recognise companies in a variety of regional and global...
Sponsored by

Three Tips to Improve Safety in the Oil Field

Working oil fields will always be tough work with inherent risks. There’s no getting around that. Ther...
Sponsored by

Pipeline Integrity: Best Practices to Prevent, Detect, and Mitigate Commodity Releases

Commodity releases can have catastrophic consequences, so ensuring pipeline integrity is crucial for p...
Sponsored by

AVEVA’s Digital Asset Approach - Defining a new era of collaboration in capital projects and asset operations

There is constant, intensive change in the capital projects and asset life cycle management. New chall...
Sponsored by

Transforming the Oil and Gas Industry with EPPM

With budgets in the billions, timelines spanning years, and life cycles extending over decades, oil an...
Sponsored by

Asset Decommissioning in Oil & Gas: Transforming Business

Asset intensive organizations like Oil and Gas have their own industry specific challenges when it com...
Sponsored by

Squeezing the Green: How to Cut Petroleum Downstream Costs and Optimize Processing Efficiencies with Enterprise Project Portfolio Management Solutions

As the downstream petroleum industry grapples with change in every sector and at every level, includin...
Sponsored by

7 Steps to Improve Oil & Gas Asset Decommissioning

Global competition and volatile markets are creating a challenging business climate for project based ...
Sponsored by
Available Webcasts


Driving Growth and Efficiency with Deep Insights into Operational Data

When Wed, Aug 19, 2015

Capitalizing on today’s momentum in Oil & Gas requires operational excellence based on a clear view of what your business data is telling you. Which is why nearly half* of oil and gas companies have deployed SAP HANA or have it on their roadmap.

Join SAP and Red Hat to learn more about using data to drive process improvements and identify new opportunities with the SAP HANA platform running on Red Hat Enterprise Linux. This webinar will also show how your choice of infrastructure impacts the performance of core business applications and your ability to achieve data-driven insights quickly and reliably.

*48% use SAP, http://go.sap.com/solution/industry/oil-gas.html

register:WEBCAST



On Demand

OGJ's Midyear Forecast 2015

Fri, Jul 10, 2015

This webcast is to be presented by OGJ Editor Bob Tippee and Senior Economic Editor Conglin Xu.  They will summarize the Midyear Forecast projections in key categories, note important changes from January’s forecasts, and examine reasons for the adjustments.

register:WEBCAST


Predictive Analytics in your digital oilfield - Optimize Production Yield and Reduce Operational Costs

Tue, Jul 7, 2015

Putting predictive analytics to work in your oilfield can help you anticipate failures, plan and schedule work in advance, eliminate emergency work and catastrophic failures, and at the same time you can optimize working capital and improve resource utilization.  When you apply analytic capabilities to critical production assets it is possible to reduce non-productive time and increase your yield.

Learn how IBM's analytics capabilities can be applied to critical production assets with the goal of reducing non-productive time, increasing yield and reducing operations costs.

register:WEBCAST


Cognitive Solutions for Upstream Oil and Gas

Fri, Jun 12, 2015

The oil & gas sector is under pressure on all sides. Reserves are limited and it’s becoming increasingly expensive to find and extract new resources. Margins are already being squeezed in an industry where one wrong decision can cost millions. Analyzing data used in energy exploration can save millions of dollars as we develop ways to predict where and how to extract the world’s massive energy reserves.

This session with IBM Subject Matter Experts will discuss how IBM Cognitive Solutions contribute to the oil and gas industry using predictive analytics and cognitive computing, as well as real time streaming for exploration and drilling.

register:WEBCAST


Emerson Micro Motion Videos

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