This week the SubseaIQ team added 4 new projects and updated 13 projects. You can see all the updates made over any time period via the Project Update History search. The latest offshore field development news and activities are listed below for your convenience.
Africa – West
Oct 24, 2013 – Lukoil completed drilling the Savannah-1X wildcat in the Sl-5-11 license offshore Sierra Leone. The well was drilled on schedule by the Eirik Raude (UDW semisub) to a depth of 14,519 feet. Several oil-bearing reservoirs were confirmed and oil samples were taken from Turonian sands. Drilling data will be evaluated through the end of the year to advance the company’s geological understanding of the area.
Project Details: Savannah
Asia – Far East
CNOOC Announces Additional Bohai Bay Discoveries
Oct 24, 2013 – CNOOC announced an oil discovery at its Luda 5-2 North field in Bohai Bay. The Luda 5-2N-2 and Luda 5-2N-4 wells were each drilled to a depth of 3,740 feet and encountered gross pay zones of 390 and 280 feet respectively. Luda 5-2N-2 tested oil at a rate 1,040 barrels per day. Additionally, the company announced the successful appraisal of the Kenli 9-5/9-6 oil field. The Kenli 9-5-2D and 9-6-2 wells were drilled in the southern part of Bohai Bay. Kenli 9-6-2 flowed at a rate of 200 barrels per day.
S. America – Brazil
Petrobras-led Consortium to Develop Pre-Salt Libra Field
Oct 24, 2013 – A group of companies comprised of Petrobras, Shell, Total, CNPC and CNOOC won a 35-year production sharing contract to develop the Libra pre-salt oil field in the Santos Basin offshore Brazil. Libra is located in block BM-S-11 in 6,500 feet of water and is estimated to hold as much at 12 billion barrels of oil. Additional appraisal will be needed to determine the best development scenario and to confirm production rates that are currently estimated at 1.4 MMbopd. Petrobras will serve as the operator with a 40 percent stake on behalf of its partners Shell (20 percent), Total (20 percent), CNPC (10 percent) and CNOOC (10 percent).
Europe – North Sea
Oct 24, 2013 – Drilling results at Eni’s Bonna prospect in the Barents Sea proved to be disappointing. Well 7016/2-1 was drilled by the Scarabeo 8 (UDW semisub) to a depth of 13,205 feet. The well was drilled to investigate the possibility of gas in the Eocene and Paleocene reservoirs of the Sotbakken Group. No reservoir-quality rocks were encountered and the well has been declared dry.
Project Details: Bonna
Asia – SouthEast
Oct 24, 2013 – Neon Energy announced the spud of the Ca Ngu-1 exploration well in Block 120 offshore Vietnam. The objective of the well is to prove the presence of hydrocarbons in Pliocene clastic and Miocene carbonate reservoirs. Block operator ENI secured the Songa Mercur (mid-water semisub) to drill the well in 885 feet of water to a target depth of around 4,900 feet. If successful, the well could de-risk the nearby Rua Bien and Ca Lang prospects. Block 120 partners consist of ENI (50%), Neon Energy (25%) and KrisEnergy (25%).
Project Details: Ca Ngu
Oct 24, 2013 – Subsea tree installation, well clean-up and flow testing of the Galoc-6H development well have successfully been completed at the Otto Energy-operated Galoc field. Galoc-6H flowed at a stable rate of 3,800 bopd on a 56/64-inch choke with a flowing tubing pressure of ~570 psi. These results were constrained by the testing equipment onboard the Ocean Patriot (mid-water semisub). Once tied into production facilities, Otto expects normal production from the well to reach 4,000 to 6,000 bopd. The 5H and 6H wells were drilled as part of the Phase II development plan which aims to increase field production to 12,000 bopd. Phase II production is scheduled to begin in November 2013.
Project Details: Galoc
S. America – Other & Carib.
Oct 25, 2013 – French supermajor Total announced its decision to move forward with the development of the Vega Pleyade gas and condensate field offshore Argentina. The field is located in the Cuenca Marina Austral 1 (CMA-1) concession that Total has operated since 1978. Development consists of installing a new production platform in about 160 feet of water. Three production wells will be drilled from the platform and produced gas will flow through 48 miles of subsea pipeline to a treatment plant at Rio Cullen. In a separate initiative, Total will begin a drilling campaign in 2014 aimed at boosting production from the Carina field and providing additional appraisal in CMA-1. Total owns a 37.5 percent stake in the concession. Its partners include Wintershall (37.5 percent) and Pan American Energy (25 percent).
Project Details: Vega Pleyade
Oct 25, 2013 – Drilling operations are complete at the Eni-operated Evans Shoal North-1 appraisal well. The well, located in the Timor Sea, was drilled by the Ensco 104 (400′ ILC) to a depth of almost 13,000 feet. Results indicate that the Evans Shoal North-1 reservoir is in communication with the reservoir encountered while drilling Evans Shoal-2. Eni conducted a production test and achieved a constrained rate of 30 MMscfd. The operator estimates the Evans Shoal field to contain at least 8 Tcf of in place gas resources and remains committed to establishing a fast-track development in the area. Eni’s partners in the field include Shell (32.5 percent), Petronas (25 percent) and Osaka Gas (10 percent).
Project Details: Evans Shoal
Oct 25, 2013 – ExxonMobil announced the start of production from its Kipper Tuna Turrum (KTT) project in the Bass Strait. Gas is now being produced at the Tuna field and oil is flowing from Turrum to the Marlin B production platform. At $4.3 billion, KTT is the largest domestic oil and gas development on Australia’s eastern seaboard. Production startup from the Kipper field is expected to commence in 2016.
Project Details: Kipper Tuna Turrum (KTT)
Drilling contractor Pacific Drilling S.A. has announced that Total S.A. has elected to exercise a one-year option to extend the firm contract term for the Pacific Scirocco to January 2015.
The contract provides for a further option, to be exercised at the client’s discretion by April 7, 2014, which could result in two additional years of contract term at a higher dayrate.
The additional one year term increases the drillship’s backlog by approximately $180 million, bringing the company’s total contract backlog as of April 9, 2013, to approximately $3.4 billion. The additional extension for two years would add a further $364 million backlog if exercised.
The Pacific Scirocco is capable of operating in water depths of up to 12,000 feet and drilling wells 40,000 feet deep.
Total announces a significant oil discovery at its North Platte prospect on Garden Banks Block 959 in the deepwater Gulf of Mexico. The discovery well encountered several hundred feet of net oil pay in Lower Tertiary sands which included several high-quality intervals.
Total estimates this discovery can have a potential of several hundred million barrels of oil. Further appraisal will be needed to confirm its size and commerciality.
“The North Platte discovery represents another example of Total’s bold exploration strategy targeting large exploration opportunities. It also demonstrates the efficiency of our alliance with Cobalt signed in 2009,” said Marc Blaizot, Total’s Senior Vice President Exploration.
Total is in a strategic alliance with Cobalt International Energy to explore for oil in the Deepwater Gulf of Mexico. The North Platte discovery is the first Lower Tertiary Wilcox formation well drilled by the Alliance. The results of the well confirm the northern extension of the Wilcox formation and the presence of liquid hydrocarbons. Therefore, this validates the major potential of this new exploration area of the Gulf of Mexico in which Total holds a substantial acreage position with several follow-on prospects.
North Platte is located in a water depth of approximately 4,400 feet (1,340 m) and was drilled to a total depth of approximately 34,500 feet (10,520 m). Total holds a 40% interest in the North Platte discovery along with Cobalt (60%, operator).
TOTAL E&P Australia (Total) has signed up to use AGR’s Riserless Mud Recovery (RMR®) system. The contract is for two exploration wells to be drilled over the next year in the Browse Basin off North West Australia.
Bernt Eikemo, AGR’s Vice President of the Enhanced Drilling Solutions (EDS) division (Asia Pacific), said: “AGR is delighted to be part of Total’s drilling team during the forthcoming exploration campaign. We hope that this is the start of a long, successful relationship with Total E&P Australia.”
He added: “Our previous experiences with several operators in the Browse Basin and the North West Shelf have shown that unconsolidated sand formations become much more benign when drilled with RMR® using a proper mud system.”
RMR® has been used by Total on several other projects internationally but this is the first time that the operator has used the system in Australia.
The main reason for using RMR® on these wells is to be able to drill through the unconsolidated sands of the Grebe Formation. It is renowned for stuck-pipe problems when drilling riserless using seawater and sweeps.
RMR® (system example attached) enables the use of weighted, engineered mud in the top-hole section. All mud and cuttings are returned to the rig with no discharge to the seabed. The top-hole section can be drilled more safely, quickly and with less impact on the environment.
RMR®, together with its sister technology the Cutting Transportation System (CTS™), has been deployed on more than 500 wells worldwide to date.
According to the Seadrill’s Fleet Status Report for May, Total has hired the rig on a three-month contract. The contract, expiring in mid-July, will bring approximately $12 million to Seadrill.
Total operates the Yadana field (31.2%). Located on offshore Blocks M5 and M6, this field produces gas that is delivered mainly to PTT (the Thai state-owned company) to be used in Thai power plants.
The Yadana field also supplies the domestic market via a land pipeline and, since June 2010, via a sub-sea pipeline built and operated by Myanmar’s state-owned company MOGE.
Following the completion of drilling operations in Myanmar, the rig will leave south-east Asia in which it has been operating since 2010. West Callisto will move to Middle East to commence drilling operations offshore Saudi Arabia under a three-year contract with Saudi Aramco. The drilling program is scheduled to start in September 2012
- Seadrill Secures Contract for Jack-Up Rig West Callisto Offshore Saudi Arabia (worldmaritimenews.com)
- Seadrill Expects Stronger Second Quarter after Robust 1Q 2012 (mb50.wordpress.com)
- South Korea: Seadrill Confirms Samsung Drillships Contracts (mb50.wordpress.com)
- Strong Demand for UDW Drillships Spurs Seadrill to Order One More from SHI (South Korea) (mb50.wordpress.com)
- Seadrill Orders Harsh Environment Rig in South Korea (mb50.wordpress.com)
- Ezion to Provide Service Rig for Operations Offshore Myanmar (mb50.wordpress.com)