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Wednesday, 18 October 2017 01:24

Shearwater delivers Eastern Med 3D data

Shearwater GeoServices has delivered a 3D Fast Track Pre-Stack Depth Migration (PreSDM) product for Edison International, following the efficient acquisition of a high quality 3D SHarp broadband dataset in the Eastern Mediterranean.

Simon Telfer, VP Processing and Imaging of Shearwater, stated that "Edison required a PreSDM volume within weeks of completing the 3D acquisition. We delivered to Edison a full 3D Pre-Stack Depth Migration product, including broadband processing and iterative model-building in just over four weeks from the final acquired shot record. We are excited to be able to offer high-end Depth Imaging as part of our Fast-Track products across our vessels."

Bruno Garcea, Seismic Supervisor of Edison’s Egypt branch, affirmed "Depth Imaging and Broadband technology are key elements to achieve a better seismic image of sub-salt plays in the Eastern Mediterranean. So we required, for the first time, to obtain a quick depth volume immediately after acquisition. Shearwater took up the challenge and, just a few weeks after the last shot, delivered us a good quality and robust FT PreSDM product."

Tuesday, 05 September 2017 02:21

OE17: Aker launching MultiBooster

Aker Solutions (stand 5C100) is launching its MultiBooster, a new, up to 6MW subsea multiphase pump to help operators maximize production from existing oil and gas fields, at SPE Offshore Europe this week.

Aker Solutions says the now qualified, standardized and modular design pump is more powerful than any other pump currently available, making it ideal for increasing the pressure on long step-outs and tie-backs.

The centrifugal pump is driven by new subsea induction motors, which can boost from 1-6 MW with the same mechanical platform by varying the pump impellers and the number of stages.  

The system is fitted with advanced condition monitoring, including proximity probes to accurately measure radial and axial displacements of the rotor, with integrated software and data analytics, to maintain efficiency and for cost effectiveness.

The industry is looking to get more out of the assets they already have. In many cases, these assets include older fields which require more pressure—that’s where the MultiBooster comes in, said Marco Gabelloni, business development director at Aker Solutions.

Aker Solutions says the MultiBooster’s combination of generated pressure and boost capacity means it can be deployed in a wide range of oil fields with various flow rates, water depths (down to 3000m) and long tie-back distances.

System performance has been proven through an extensive testing campaign in a full-scale multiphase test loop at Tranby, Norway, with varying mixtures of water and gas to demonstrate the MultiBooster’s gas handling capabilities.

Together with the POWERJump, which was qualified earlier this year, the MultiBooster complements Aker Solutions portfolio of subsea multiphase pumps by providing solutions for all types of boosting applications.

Monday, 28 August 2017 05:06

Harvey continues to wreak havoc

Tropical storm Harvey continues to wreak havoc in North America after bringing much of Houston to a halt following torrential rain over the weekend, leading to record "catastrophic" flooding. 

Transport across the city, a key hub for the oil industry, has been halted by floodwaters, due to more than 30in of rain falling on the city in some areas, with up to 50in expected in areas, according to Bloomberg. The city's George R. Brown Convention Center has been opened to those forced out of their homes. Thousands of flights have been cancelled, public transport was halted and schools will shut for a week, says Bloomberg. 

Harvey is being described as the strongest storm to hit the US since 2004. This morning, the National Oceanic and Atmospheric Administration (NOAA) said the flooding was "catastrophic and life threatening." NOAA says, on the forecast track, the center of Harvey is forecast to move off the middle Texas coast this morning, and remain just offshore through Tuesday.

Many oil firms have shut their offices today, including Baker Hughes, a GE company, ConocoPhillips, which tweeted today that its offices would be shut today and tomorrow. Refineries are also being shut-in.

Operators in the Gulf of Mexico had started to evacuate offshore failities mid-week, before the storm hit. By Sunday, personnel had been evacuated from 105 production platforms, amounting to 14.25% of the 737 manned platforms in the Gulf of Mexico, says the Bureau of Safety and Environmental Enforcement (BSEE). 

Personnel had also been evacuated from five rigs (non-dynamically positioned, or DP), equivalent to 50% of the 10 rigs of this type currently operating. One DP rig, out of 21 operating in the Gulf, had moved off location as a precaution, said BSEE yesterday. A further update is expected at 1pm CDT today.

According to operator reports, it is estimated that about 21.64% of the current oil production of 1.75 MMbbl b/d in the Gulf of Mexico has been shut-in, equating to 378,633 b/d. It is also estimated that approximately 25.71%, or 827.89 MMcf/d of the natural gas production in the Gulf of Mexico has been shut-in. 

Image: NOAA rainfall forecast, for 28 August through 4 September.

Wednesday, 23 August 2017 03:13

SNE FPSO tendering later this year

Tendering for a floating production unit and subsea systems for the SNE project offshore Senegal is set to start later this year, Cairn Energy says. 

The project, which has seen 2C resources increase from 473 MMbbl to 563 MMbbl, with 1 Tcf of gas resource, is set to be a phased development, starting with up to 25 wells, including water and gas injectors, targeting 240 MMbbl, with first oil targeted for 2021-23. Subsequent phases would add a further 40 wells, with 20 producers and 20 water injectors. 

The first phase, in the Sangomar Deep Offshore, would target the S500 lower reservoirs with an initial target plateau of 75,000-125,000 b/d. The subsequent development phases will target the S400 upper reservoirs and additional areas.

The current SNE development plans assume gas re-injection during initial development with the potential for gas export in later phases. It is estimated that the SNE field holds more than 1 TcF recoverable non-associated gas and 0.3 TcF of associated gas.

Partner Woodside is due to take over operatorship for the development phase next year, with Cairn continuing exploration activities on the acreage. The pair plan to submit an evaluation report and exploitation plan to the Government of Senegal in 2018, with front end engineering and design planned to start next year and a final investment decision targeted before the end of 2018.

Cairn says it is also continuing to focus on exploration potential around SNE. On the Rufisque and Sangomar offshore blocks, the pair are maturing multiple prospects on newly processed 3D seismic data with a view to potential further exploration drilling, which in a success case could potentially support a standalone development.

Cairn (Operator) has a 40% WI in three blocks offshore Senegal (Sangomar Deep, Sangomar Offshore and Rusique Offshore) alongside partners, Woodside (35%), FAR (15%) and the Senegal National Oil Company, Petrosen (10%). 

“With the upcoming Kraken and Catcher cashflow and debt funding, Cairn can probably fund the development of these projects,” says GMP Research. 

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