Vast Resource Potential in Australia

Deep Coals ● Shales ● Basin-Centered Gas ● Coal-Seam Gas Cooper Basin ● Perth Basin ● Canning Basin ● Arckaringa Basin ● Surat Basin
Come see and hear for yourself why 15,000+ executives and professionals attended DUG conferences last year. Learn more about DUG.
First-Movers Advantage Learn from the U.S. Shale Pioneers Hart Energy, the producer of the DUG conference series, is bringing DUG Australia to Brisbane, QLD 27-29 August 2013. Visit stand #362 at the APPEA annual meeting in May to learn more about Hart Energy and the DUG Australia event. Only DUG can bring together pioneering executives from North America with industry leading executives in Australia. From the C-suite speakers and expert presentations to the leading technology providers' exhibits and highly qualified audience, "the DUG experience" is like no other. U.S. Shale Pioneers: Learn more about these industry leaders Bruce H. Vincent President Swift Energy Richard Stoneburner Retired President BHP Billiton Petroleum Gary Evans Chairman and CEO Magnum Hunter Resources The next frontier in unconventional resources The International Energy Administration estimates Australia unconventional recoverable resources to be some 700 Tcf, larger than the combined recoverable resources of North America's vast Haynesville and Marcellus shale plays. Read more. Driven by growing activity of unconventional resources and current and future forecasts of LNG exports, Australia is poised for even greater prominence in the global unconventionals market. The DUG Australia conference and exhibition provides an ideal opportunity for your company to secure an early position in the Australian market. Conference speakers and attendees will share insights on the technical, logistical and financing needs to develop this emerging market to its full potential. DUG Australia provides access to an international audience and opportunities including: In-depth discussions on best practices from the U.S. shale pioneers for developing and operating in such resource plays as the Eagle Ford, Barnett and Marcellus First-hand insight into how North American leaders addressed the myriad challenges presented by community and environmental issues The chance to be part of a high-level and diverse audience that only Hart Energy conferences can attract Other featured speakers include: View full speaker line-up Diana Hoff Vice President Santos Ltd. Vidar Skjaeveland Vice President Statoil ASA Cheryl Cartwright Chief Executive Australia Pipeline Industry Association David Breeze Executive Director Advent Energy Ltd. David Wrench Manager Director Strike Energy Ltd. Relevant conference sessions include: *Click the link below for more details Australasia's Resource Plays CSG: Ongoing Challenges and Opportunities Shale, Deep Coals and Tight Gas: Today and Going Forward Cooper Basin Unconventionals Western Australia Plays: The Perth and Canning Basins Identifying Australia's Shale-Oil Resources Make plans to attend – Register now Make your travel plans and register today to exchange knowledge with the pioneers of the North American shale gas boom. Visit dugaustralia.com to learn more. Supported by: The Queensland Government and Australian American Chamber of Commerce	New to DUG? Hear what our attendees have to say... Proud member of See us at the APPEA annual meeting in May. Stop by stand #362 to receive a complimentary copy of the The North American Shale Revolution: Analogues For Australian Success Advisory Board Member Companies View advisory board Need a place to stay? Brisbane Marriott Hotel

For all account related inquiries (including change of address, email, or other subscription details) please contact Customer Service at custserv@hartenergy.com or call +1.713.260.6442 or +1.800.874.2544. © 2013 Hart Energy

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Wellhead Maintenance & Integrity Management

Wellhead Maintenance & Integrity Management Safeguarding against the unknown

N. Dale, D. Heskins, M. Bolton 

Claxton Engineering Services Ltd.

Abstract

Technological and procedural advances in flow assurance and reservoir management have resulted in an increase in the estimated field lifetime and subsequently field hardware utilisation. In order to safeguard asset structural integrity, it is becoming increasingly important to adequately service and maintain wellhead and tree assemblies to confirm the well integrity is fit for purpose and ensure the surface barrier against hydrocarbon leakage can be relied upon in the event of an emergency situation. 

Continuous high-quality and efficient production can lead to complacency about the integrity of the wellhead and a lack of focus on routine maintenance – but what if a catastrophic failure occurs which requires an emergency shutdown? 

Lack of critical component maintenance and exposure to the elements can take its toll on mechanical assemblies, increasing the likelihood of production downtime caused by equipment failure. 

These very real possibilities can be greatly reduced through a programme of planned and efficiently managed well maintenance including valve servicing, pressure testing, function testing and monitoring of general wellhead condition and operational trends. This can lead to more efficient production and will increase the asset life whilst reducing the costs associated with work-over programmes. 

This paper details the most critical failure mechanisms of the wellhead-tree assembly and describes the benefits of a typical externally-managed long-term well maintenance 

programme delivering full traceability and integrity assurance to the operator. 

Read full article in the following link:

http://www.claxtonengineering.com/assets/uploads/resources/2010/11/615b2538-4f6d-476b-8c34-91977d04eb69.pdf

Flange Slide Rule

Simply put in the size and pressure rating and all the relevant dimensions appear in the boxes. A very handy tool. You will see from this that you 10M and 15M flanges are in fact quite different.

http://www.flangesliderule.com/

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Containing the leak

BP worked with experts from the industry, government and academia to develop and implement efforts to stop the leak, contain the oil and permanently kill the well

Within days of the incident occurring, the US federal government established a Unified Area Command to manage the response effort and communications. The Unified Area Command members included BP, the states of Alabama, Florida, Louisiana and Mississippi, and the US Coast Guard. These members worked closely with the Department of the Interior, the US National Oceanic and Atmospheric Administration, the US Environmental Protection Agency and many other US federal departments and agencies.

BP, working under the direction of the federal government and closely with specialists from peer companies, governmental agencies and academia, tackled the leak in multiple, parallel ways. After the accident, teams immediately set to work to stop the leak at the source, plan relief wells and develop a suite of options to stop or contain and recover the flow. Within weeks, we had begun work on the drilling of two relief wells. We also employed multiple techniques to expedite the containment of the leak, including fitting caps on the well, using containment systems that pipe oil to vessels on the surface, and sealing the well through the static kill procedure.

How much oil was spilled?

Before the well was contained on 15 July 2010, a substantial amount of oil spilled into the Gulf of Mexico. The US government and third parties have announced various estimates of the flow rate or total volume of oil spilled from the Deepwater Horizon incident. The multi-district litigation proceedings pending in New Orleans will address the amount of oil spilled. While we understand that an estimate of flow rate or total volume spilled is of interest to many of our stakeholders, BP's efforts to address the potential environmental and social impacts have not been limited by the precise volume of the spill.

How the leak was contained

Installing the sealing cap involved a multiple stage process with several vessels and remotely operated vehicles over a four to seven day period. The sealing cap had the potential to increase oil and gas collection capacity and was designed to improve collection efficiency during the hurricane season by allowing shorter disconnect and reconnect times. The new cap assembly was also designed to have a positive impact on any potential well kill and cementing procedures required during relief well operations. In addition, the new cap enabled testing of well integrity and, depending on pressure measurements, could have been used to shut in the well.

Below are several items that should help you learn more about the sealing cap:

Sealing cap installation overview (video)

Sealing cap installation overview (animation)

3 Ram capping stack construction and testing (video)

Media briefing (audio) - 10 July 2010, 1730 CDT

 Media briefing (transcript) - 10 July 2010, 1730 CDT (pdf, 22KB)

Media briefing (audio) - 10 July 2010, 1000 CDT

 Media briefing (slides only) - 10 July 2010, 1000 CDT (pdf, 3979KB)

 Media briefing (transcript) - 10 July 2010, 1000 CDT (pdf, 46KB)

Sealing cap operation

Footage from ROV cameras, during the installation of the sealing cap.

Sealing Cap Installation 1 - Remove LMRP Cap - 14 July 2010

Sealing Cap Installation 2 - Remove Bolts and Flange - 14 July 2010

Sealing Cap Installation 3 - Drill Pipe Inspection - 14 July 2010

Sealing Cap Installation 4 - Flange Transition Spool Install - 14 July 2010

Sealing Cap Installation 5 - 3 Ram Stack Install - 14 July 2010

In addition, here are several ROV clips showing the free standing riser installed subsea which were connected to the Helix Producer vessel. The Helix Producer collection system, combined with the sealing cap, created a more efficient operation if needed during a hurricane.

ROV clip part 1 – suction pile install

ROV clip part 2 – free standing riser overview

ROV clip part 3 – flexible jumper connection

Attestation

The information on this page forms part of the information reviewed and reported on by Ernst & Young as part of BP's 2012 sustainability reporting.

View Ernst & Young's assurance statement

Source: http://www.bp.com/sectiongenericarticle800.do?categoryId=9048919&contentId=7082604