|Theme||Visible||Selectable||Appearance||Zoom Range (now: 0)|
Developing an asset requires key investment decisions to be made early in the process, and as a result, some critical cost evaluations—such as abandonment—are often ballpark estimates. Adjusting the parameters for evaluating these costs can lead to more-accurate project valuations. Natural gas has emerged as a potentially major player in the energy mix, but what role will price pressures play in sanctioning gas supply projects and in LNG markets? Industry 4.0, the latest industrial revolution, has hit the manufacturing sector, building upon the adoption of computers and automation into industrial processes. How well suited is the oil and gas industry to leverage the new autonomous systems that could emerge from this transformation?
The complete paper discusses the use of cumulative production ratio curves normalized to a given reference volume in time for different unconventional plays in North America to investigate the median trend for each play and the median ultimate recovery per play. The merged companies will offer large-diameter coiled-tubing, directional drilling, snubbing, wireline services, and pressure pumping services. The amount of uncertainty related to directional drilling makes accurate drilling challenging, leaving much to human know-how and interpretation. Additionally, few path-planning methods in the literature consider the directional steering tool being used. This paper describes the analysis of sidetracks drilled in an open hole by an annular ledge formation method with a downhole motor in multilateral wells.
A number of companies are pushing for alternative approaches to offshore development that seek to access marginal reservoirs. Their differing and unique ideas call for a departure from the usual playbook, but share a common goal of slashing capital costs. Eight of the world’s 10 longest wells have been drilled by ExxonMobil as operator of the Sakhalin-1 project in Russia.
The Novoportovskoye oil and gas condensate field was discovered in 1964 but left undeveloped for decades due to its remote location on the Yamal Peninsula in Siberia. With a production capacity of nearly 20 mtpa, Wood Mackenzie says the project would be the largest single project to reach FID. Novatek plans to spend more than $21 billion to launch the project at full capacity. Startup is scheduled for 2023. The Russian independent will likely sell an ownership stake to an additional partner in the coming weeks, joining Total, CNOOC, and CNPC.
The Novoportovskoye oil and gas condensate field was discovered in 1964 but left undeveloped for decades due to its remote location on the Yamal Peninsula in Siberia. Rutter, Statoil Canada, and the Government of Newfoundland and Labrador completed a collaborative research and development (R&D) project aimed at improving offshore oil and gas operations in harsh environments with ice conditions. Cost and delivery of long-distance natural gas pipelines to a distant liquefaction facility at a warm-water port has become excessive, and environmental restraints have been increasing. An alternative is an offshore ice-resistant LNG port accommodating a new class of LNG transport vessels. As the design methodologies evolve for arctic pipelines, strudel scour, permafrost thaw settlement, and ice gouging need to be factored in with environmental and geotechnical data, limit states, and trenching and backfilling activities.
Africa (Sub-Sahara) Eni started production from the Nené Marine field, which sits in the Marine XII block in 28 m of water, 17 km offshore the Republic of the Congo. The first phase of the field produces from the Djeno pre-salt formation, 2.5 km below the ocean floor at a rate of 7,500 BOEPD. Future development will take place in several stages and will involve the installation of more production platforms and the drilling of at least 30 wells. Eni (65%) is the operator with partners New Age (25%), and Société Nationale des Pétroles du Congo (10%). The well's primary target is the Bunian structure: a four-way, fault-bounded anticline, which was defined by a 3D seismic survey. It will be drilled to a total depth of 1682 m.
Africa (Sub-Sahara) Bowleven said that its extended flow test program at the Moambe and Zingana wells on the Bomono Permit onshore Cameroon is complete. The company said that the results to date continue to support its plans for an initial supply of between 5 MMscf/D and 6 MMscf/D of natural gas for power generation, under a development program established with partners Actis and Eneo. The initial program focuses on production from the shallower gas-prone sands on the permit. Bowleven has a 100% equity interest in the permit. Eni started production from the West Hub development project's Mpungi field in Block 15/06 offshore Angola. The startup follows the project's first oil from the Sangos field in November 2014 and the Cinguvu field last April.
Africa (Sub-Sahara) Shell's new natural gas discoveries in Egypt are estimated in initial quantities at about 500 Bcf with more reserves possible, said Aidan Murphy, chairman and managing director of Shell Egypt. The discoveries, in a concession area of north Alam El-Shawish in the country's western desert, could yield 10% to 15% of the total production of Badr el-Din Petroleum Company, the 50/50 joint venture of Shell and Egyptian General Petroleum Corporation that is expected to manage the operations. Eni reported that the Laarich East-1 oil well in Tunisia has a delivery capacity of approximately 2,000 B/D. Spudded in June, the well discovered hydrocarbons in Silurian and Ordovician sandstones while reaching a final depth of 13,487 ft. The well has now been connected to production. The company continues to drill Tunisian exploration prospects that have been identified on 3D seismic surveys. Eni owns a 50% stake in the Makhrouga-Laarich-Debbech license, where the Laarich East-1 well is located.
Africa (Sub-Sahara) Eni discovered up to 250 million bbl of light oil in the Ndungu exploration prospect in Block 15/06 offshore Angola. A well in 1076 m of water reached TD of 4050 m and proved a single oil column of approximately 65 m with 45 m of net pay of 35 API oil. Well results indicate production capacity in excess of 10,000 B/D. Eni operates Block 15/06 with 36.8421% Joint venture partners are Sonangol P&P (36.8421%) and SSI Fifteen (26.3158%). Eni discovered gas and condensate on the Akoma prospect in CTP-Block 4 offshore Ghana. The Akoma-1X exploration well was drilled in 350 m of water approximately 50 km offshore and 12 km northwest of the FPSO John Agyekum Kufuor.