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The technology will provide Equinor a continual feed of updated reservoir information from its Johan Castberg and Johan Sverdrup fields with the aim of improving well placement, production, injection, and—ultimately—recovery. Statoil has submitted a long-awaited development plan for what will become Norway’s northernmost development.
Africa (Sub-Sahara) Eni announced an oil discovery in Block 15/06 offshore Angola in the Kalimba exploration prospect that is estimated to contain between 230 and 300 million bbl of light oil in place. The Kalimba-1 NFW well, which led to the discovery, is located approximately 150 km off the coast. The well was drilled in a depth of 458 m and reached a total depth of 1901 m. The data acquired in the well indicate a production capacity in excess of 5,000 B/D. The discovery creates opportunities for exploration in the southern part of Block 15/06, so far considered mainly gas-prone. The joint venture, with stakes held by Eni (operator, 36.8421%), Sonangol (36.8421%), and SSI Fifteen Limited (26.3158%), will work to appraise the updip of the discovery and will begin studies to fast-track its development.
While the ongoing trends in data science and engineering analytics are going to show more benefits in lowering production costs and increasing efficiencies, the well-established reservoir and production engineering disciplines will continue to be critical for reservoir performance improvements. Unconventional producers around the world have been hamstrung by expensive and cumbersome options when it comes to obtaining reservoir data. Among the latest ways to break past these barriers is a new method developed by Canadian researchers and field tested in Australia’s unconventional frontier. The proposed restructuring plan aims to eliminate about $74 million of the company’s debt. The complete paper presents a technical discussion of a new microsampling technique for LWD and a corresponding wellsite technique to provide compositional interpretation, contamination assessment, reservoir-fluid compositional grading, and reservoir compartmentalization assessment.
Automated image-processing algorithms can improve the quality and speed in classifying the morphology of heterogeneous carbonate rock. Several commercial products have produced petrophysical properties from 2D images and, to a lesser extent, from 3D images. Duri Field in Indonesia is the largest active steamflood project in the world. The field produces 73,000 BOPD, and 10,000 optimization jobs are executed annually to support base production. Fluid saturation isn't what it used to be when it comes to unconventional reservoirs.
This paper presents the basic concepts and architecture of the Eni Reservoir Electromagnetic Mapping borehole electromagnetic mapping system that integrates borehole EM methodology with surface EM methods to provide real-time mapping of reservoir-fluid distribution during production or injection. An intelligent drilling optimization application performs as an adaptive autodriller. In the Marcellus Shale, ROP improved 61% and 39% and drilling performance, measured as hours on bottom, improved 25%. With their gee-whiz—albeit artificial—intelligence, robots may be the industry’s answer to jobs deemed dangerous, dirty, distant, or dull. A test showing that it’s possible to automate the billing process for produced water hauling has opened the door for tracking a wide range of field activities.
A new licensing round will open up 136 blocks in the Arctic Barents Sea. The complete paper describes the overall project execution of the Aasta Hansteen field development on the Norwegian Continental Shelf (NCS) north of the Arctic Circle. It is the deepest field yet developed on the NCS in 1300 m of water. Many forms of remote sensing imagery can be used, along with data sets and the resultant products, to improve the efficiency and safety of upstream oil and gas operations on the North Slope of Alaska. The $5.6-billion deal includes the Prudhoe Bay field and the Trans Alaska Pipeline and vaults Hilcorp to be the second-largest Alaska producer and reserves holder, behind only ConocoPhillips. The green light comes 4 years after the privately-held firm filed its development and production plan.
Before the giant Johan Sverdrup field had produced even one barrel of oil, operator Equinor and its license partners set a recovery ambition of greater than 70% for the field. The complete paper describes the development of the “digital field worker” at Johan Sverdrup, an initiative that has changed the approach toward not only construction and completion but also operations. Offshore facilities are typically powered from onsite gas turbines but efforts to become “carbon efficient” are pushing oil and gas companies toward an onshore alternative. The technology will provide Equinor a continual feed of updated reservoir information from its Johan Castberg and Johan Sverdrup fields with the aim of improving well placement, production, injection, and—ultimately—recovery. By creating a different sort of partnership for a drilling project with close cooperation and greater efficiency built into every detail, including the contracts, Statoil was able to halve the cost of drilling eight wells at its Johan Sverdrup field.
The objective of this paper is to describe the process technology and construction of the world's first seawater sulphate removal plant using membranes for the key treatment stages.
SUEZ and Techouse have jointly developed the water injection module for the Equinor FPSO Johan Castberg. The vessel will be stationed in the Barents Sea, north of the Arctic Circle in 360-390m of water. The water injection capacity is specified by the client as 180,000 barrels per day with a sulphate content of <40ppm and an oxygen content of <20ppb. The environmental challenges of this location meant that a fresh design perspective was required to operate the water injection plant to this specification. NORSOK engineering standards are also required.
The traditional treatment process for this type of installation is pre-filtration by multi-media, cartridge filtration, nanofiltration membranes for sulphate removal, followed by vacuum tower deoxygenation. This paper will describe the alternative process solutions proposed, using an all-membrane process train and describe the benefits in terms of weight, footprint and operability, plus progress with construction to date.
The water injection module is structurally complete as at September 2019 and is unique in that it is fully enclosed. Construction has been optimised by using the walls as a structural component rather than just cladding, thus keeping weight and structural complexity to a minimum.
Unique features of this plant are:
A fully enclosed water injection module
An all-membrane process train
The world's first full scale offshore membrane deoxygenation plant
Kvaerner is currently working on the delivery of an FPSO for the Equinor-operated Johan Castberg field. As part of a plan to boost revenue to more than $1 billion over the next four years, Kvaerner announced its plans to push for more floating production, storage, and offloading (FPSO) vessel manufacturing contracts. The engineering and construction company also said it would expand its operations into the offshore wind market as it anticipates a significant boost in wind power projects to come into development. Kvaerner president and CEO Karl-Petter Løken said Kvaerner has already delivered more than 50 units for offshore wind projects and is involved in early phase work for other operators. The company is looking to expand its wind operations into other regions, particularly offshore Europe and North America.