Hybrid Ultradeepwater-Riser Configuration Saves Costs, Pushes Depths
The single independent riser (SIR) is a hybrid riser configuration optimized for ultradeepwater field development. The SIR is composed of a flexible jumper and a rigid part vertically tensioned by means of distributed or continuous buoyancy.
Machine-Learning Approach Improves Deepwater Facility Uptime
This paper describes an automated work flow that uses sensor data and machine-learning (ML) algorithms to predict and identify root causes of impending and unplanned shutdown events and provide actionable insights.
Equinor Makes First Discovery in Gulf of Mexico Since 2015
The Monument well represents the Norwegian operator’s first deepwater drilling project in US waters in 5 years.
Transocean's Backlog Signals A Deepwater Revival
Transocean reported a long list of reasons why the deepwater drilling business is coming back strong. Making money is still not one of them.
Eni Makes Another Discovery Offshore Mexico, Expects Several More
The Italian oil and gas company has found its second big well offshore Mexico and is setting its sights on several more in the near future.
Diagnostic Tool Identifies Factors in Well-Productivity Decline
Wells in deepwater reservoirs show significant rate decline with time as the result of various causes. A diagnostic tool for quantification of factors influencing well-productivity decline is presented in this paper.
Global Deepwater Production Hits 10 Million BOE/D
The depth of the world’s offshore projects has steadily increased over the past 30 years—and so has its production base. The growth trend will continue thanks to new fields offshore Brazil, Guyana, and the US.
Shale, Tight Oil Investments to Fall 12% in 2020; Global Deepwater Rising
Lower oil prices and capital discipline are expected to result in a double-digit drop in shale and tight oil spending, while deepwater momentum is seen continuing. This comes as “massive investments” will be needed in the next decade to meet growing oil demand.
Colombia’s New Ambitions Include Caribbean and Shale Development, But Are They Achievable?
Colombia is walking a thin line between becoming another fading petroleum province and Latin America’s next big success story. Its aces in the hole: unleashing its nascent offshore and unconventional sectors.
Murphy Oil to Buy Deepwater US Gulf Assets for up to $1.625 Billion
The El Dorado, Arkansas-based Murphy has quickly found a home for some of the cash it will receive from the sale of its Malaysia business. The company has been rapidly expanding its US gulf footprint while simplifying its portfolio and targeting more oil.
Shell Partners with Startup to Get a Better Taste of the Reservoir
Wireline formation tests are a critical piece of the exploration and appraisal process, yet they come with a degree of uncertainty. The supermajor has tapped a new software developer to see if it can clear things up.
Isolation Barrier Valves Installed Successfully in Deepwater Gulf of Guinea
A major operator manages multiple deepwater projects in the Gulf of Guinea. This paper describes one of these, a recent 44-well project.
Blacktip: Shell’s New Discovery in the Gulf of Mexico
The explorer has so far encountered 400 ft of reservoir pay zone in an area where it has three other producing fields.
Brazil’s Lula Field a Step Closer to Producing 1 Million B/D of Oil
Petrobras and Shell have brought online the Lula field’s seventh FPSO as the firms continue to ramp up production from the pre-salt Santos Basin.
Total Begins Production From Nigeria’s Giant Egina Field
The French major is racking up barrels of deepwater production as part of its large-scale West African push.
Managed-Pressure-Drilling Equipment Augments Deepwater Well Control
This paper describes how a technique known as applied-surface-backpressure managed-pressure drilling (ASBP-MPD) can alleviate the limitations of conventional deepwater well control.
BP, Chevron Bring Two More Offshore Projects on Stream
Majors BP and Chevron have overcome development challenges and delays to launch their respective Clair Ridge and Big Foot projects.
Petrobras, Shell Start Production From Eighth Lula Field FPSO
The unit is flowing oil and gas from the Lula Extremo Sul area, 290 km off Rio de Janeiro state in 2150 m of water.
Total's Deepwater Output To Hit 500,000 BOE/D by 2020
Despite a trend toward renewables and low-carbon energy production among European majors, Total remains wholeheartedly committed to deepwater production.
BHP Affirms Devotion to Oil and Gas Despite US Shale Exit
BHP Billiton lost billions during its foray into US shale, but that doesn’t mean it has soured on oil and gas—particularly when it comes to deepwater development.
Looking for a Lot More Deepwater Production? Fix Your Old Wells
BP has seen enormous payoff from a program to intervene in underperforming subsea wells in the Gulf of Mexico.
Guyana and Suriname: What’s Next on the Horizon?
ExxonMobil’s hot streak of offshore discoveries have sparked investor interest in the Guyana-Suriname basin. How did the company get there, and why do industry representatives feel optimistic about future deepwater prospects in the region?
Advances in 4D Seismic and Geophysical Monitoring of Deepwater Fields
Integrated surveillance is critical for understanding reservoir dynamics and improving field management. A key component of the surveillance is areal monitoring of subsurface changes by use of time-lapse geophysical surveys such as 4D seismic.
Modeling of Production Decline Caused by Fines Migration in Deepwater Reservoirs
The complete paper presents a numerical work flow to simulate the effect of flow-induced fines migration on production decline over time in deepwater reservoirs.
Shell Dominates Mexico’s ‘Very Successful’ Second Deepwater Auction
Mexico’s Round 2.4 deepwater auction surpassed expectations as 19 of 29 blocks were awarded to 11 firms from 10 countries.
Chevron, Total Log Big Discovery in Deepwater Gulf of Mexico
The two supermajors and offshore powerhouses are assessing the latest Gulf of Mexico discovery.
Total Ups Its US Gulf of Mexico Game Through Buy-In to Anchor Discovery
Total just strengthened its presence in United States deepwater plays through an acquisition from Samson that gives the French company a 12.5% interest in blocks covering the Anchor discovery, one of the most significant recent finds in the Gulf of Mexico.
Petrobras, Total Complete Major Presalt Deals
Petrobras and Total have executed two major transactions involving deepwater, presalt development assets offshore Brazil, with Total becoming the first major international company to operate a Brazil presalt field.
Transocean Makes Latest Move Toward Offshore Consolidation
This new deal marks the second major acquisition of an offshore drilling company since the onset of the industry downturn.
Systematic Coiled-Tubing-Efficiency Improvement Reduces Operational Time
Deepwater coiled-tubing (CT) well interventions can benefit from significant rig-time reduction and cost savings associated with improved efficiencies of surface processes.
Want To Make Deepwater More Profitable? Shell Says Listen to the Facility Staff
One of the oldest deepwater platforms in the Gulf of Mexico has become a profit-leader for the oil major during this downturn and is now a model for the company’s other floating assets.
OTC: Competitive Strategies Bring Projects to FID
Companies are rethinking offshore developments and in a very tough market are finding innovative ways of bringing some projects forward.
OTC: To Compete With Shale, Deepwater Must Think Like Shale
The quick turnaround times and low-risk nature of shale developments need to be replicated in the deepwater business, according to the CEO of Murphy Oil.
Deepwater Hydraulic Well Intervention: A Creative Hybrid Solution
This technical paper describes the planning and execution of a multiservice-vessel (MSV) -based hydraulic-intervention campaign in Chevron’s Tahiti field in the US Gulf of Mexico.
Deepwater-Structure-Installation Challenges Offshore Australia
This paper provides an insight into the challenges encountered and overcome during installation of 20 subsea structures, some close to 1000 t in weight and in water depths of up to 1350 m, for the Gorgon project offshore Western Australia.
Sustainable Building Blocks for Cost-Effective Deepwater-Field Development
This paper reviews clusters of information that will be termed “building blocks” for deepwater-field-development planning, discussing how they are currently used and exploring more-affordable, but technically robust, alternatives.
US Gulf of Mexico Hits Record Production
New figures show that the facilities working in the Gulf of Mexico achieved higher crude output in 2016 than at any other period.
Shell: New Deepwater Project Can Break Even Below USD 40 Oil Price
The international major's low-cost development plan calls for a subsea tieback that will transport oil and gas through a single flowline to an existing floating production facility.
Offshore Drillers Attack Costs and Downtime With Data-Driven Deals
New long-term contracts between offshore drillers and equipment makers reduce downtime and risks associated with key components, from blowout preventers to risers.
Mexico Awards Its First Deepwater Blocks; What Comes Next?
Mexico’s long awaited deepwater auction saw 8 out of 10 blocks awarded but there remains plenty of work to be done before activity ramps up, including finalizing regulatory rules, upgrading ports, and optimizing the bid rules for future auctions.
Retrofitting MPD Systems to Deepwater Rigs Aids Drilling, Efficiency, and Process Safety
The unique properties of deepwater formations pose significant challenges to the capabilities of conventional drilling rigs. Using automated drilling equipment, including MPD, efficiency and cost savings can accompany safety.
Mexico’s Deepwater Auction a Success; Now What?
Mexico’s historic public tender for its deepwater real estate resulted in the awarding of eight out of 10 blocks on offer.
Operators Begin Considering Pumps on Older Subsea Fields
The sharp downturn in the offshore oil business has sparked interest in using subsea pumps to add production. If those conversations turn into orders, it may convert this rarely used option into a commonly used tool for extending the life of offshore fields.
Standardization and Replication in Redevelopment-Project Subsea-Tree Design
Successful rejuvenation of two declining fields was enabled through innovation in both engineering and procurement strategy.
Offshore Development Slump Likely To Cause Long-Lasting Pain
Offshore exploration will be slow to come back as companies have delayed billions in projects through 2020. Exploration projects also must complete for funds with brownfields developments like EOR that potentially provide a shorter time to show a return.
Deepwater Future Tied to Technology Innovation
For deepwater development, panelists at OTC emphasized the need for scalable technology, the standardization and simplification of projects, patient capital investment in innovation, greater collaboration, and new perspectives coming from outside the industry.
New Deepwater, High-Pressure GOM Tubular Maximizes Capability, Reduces Cost
A 2-year comprehensive effort to design, test, manufacture, and deploy a new high-pressure completion tubular for Chevron’s deepwater Gulf of Mexico (GOM) operations is presented.
Management: Energizing Worldwide Oil and Gas Deepwater Developments
A panel discussion at the 2016 OTC in Houston focused on the factors that influence deepwater developments, the scenario for the future, and the opportunities available within the industry. One key question asked was: What oil price is required to keep deepwater viable over the long term?
Wireline Method Offers Faster, Cheaper Plugging for Deepwater Wells
A new method for accessing and cementing hard-to-reach spaces around complex offshore wells.
Advancing Deepwater Kick Detection
This paper describes experiences, challenges, and approaches to solving the problems related to creating an advanced early kick-detection system suitable for floating mobile offshore drilling units.
Riser-System Design in Water Depths Greater Than 3000 m
This paper evaluates the feasibility of a number of production- and export-riser configurations for ultradeepwater applications.
Subsea Production Optimization in Field BC-10 Offshore Brazil
The BC-10 asset, located in deep water offshore Brazil, produces heavy oil in the range of 16 to 24 °API. In this article, two examples of production optimization for this field will be provided (further examples are available in the complete paper).
The high costs surrounding deepwater developments and the low price of oil are a challenging combination for operators and service companies today.
In-Well Dual Canned ESP Completion Test To Validate Safe Deployment in Deep Water
Deepwater and ultradeepwater completions use numerous hydraulic control lines for control and actuation of downhole equipment.
Onshore Support for Mexico’s Deepwater Blocks Lacking
The deepwater blocks Mexico plans to lease to international operators in December are among the deepest, most remote, and geologically challenging in the world. But the difficulties of developing these areas will start onshore, where adequate and secure port facilities are few and far between.
New Improvements to Deepwater Subsea Measurement
A RPSEA project identified the gaps in technology that are the most pressing for multiphase-flow measurement.
Single-Gradient Subsea-Mud-Lift-Drilling Technology in Deepwater Gulf of Mexico
As with other MPD systems, SMD technology offers early detection of influxes (kicks) and minimizes downhole losses to weak subsurface formations.
Behind-Pipe-Log-Evaluation Study: Deepwater Subsea Abandonments
Techniques for well-abandonment log evaluations have been studied in the Gulf of Mexico since 2012. The new methods described in this paper consist of adding nuclear sensors to supplement the acoustic measurements and introduce novel processing methods.
Seismic Data: Looking for Oil From More Angles
New seismic data gathering techniques promise better images for less by gathering more data quicker, seeing past obstructions, and seeking out scarce frequencies.
Major Oil and Gas Discoveries Offshore Mexico
In June, Mexico’s national oil company Pemex announced its largest discoveries of oil and gas in 5 years. Located in the shallow-water basin of the Gulf of Mexico offshore Tabasco and Campeche, the four new fields are estimated to hold 350 million bbl of oil.
Drilling Evolves as Exploration Campaign Moves to Deeper Water Offshore Mexico
During the 10-year period between 2003 and 2013, Mexico drilled 30 deep- and ultradeepwater wells in water depths ranging from 512 to 2900 m.
Asia Pacific Deepwater Capabilities Expand To Meet Growing Energy Demand
The Asia Pacific region is expected to be the fastest-growing region in deepwater development in the next 5 years.
Experience and Perspectives of Deepwater Smart Fields Management
This paper describes field experiences and perspectives on a Smart Fields implementation for the Bonga deepwater field and uses the results of a post-implementation study to evaluate the business effects and lessons learned after 5 years.
High-Pressure/High-Temperature BOP Equipment Becoming a Reality
The offshore industry has taken another step toward opening up new deepwater frontiers to exploration with Maersk Drilling ordering the first 20,000-psi blowout preventer (BOP) made by GE Oil and Gas.
Managed-Pressure Drilling Migrates Into Deep Water Offshore Brazil
Two years ago, as drillers approached the bottom of a deepwater well in the Lula field, they were stopped again and again by total drilling fluid losses.
BOP Monitoring Seeks To Reduce Downtime, Increase Insight
Many problems that result in BOP downtime could be prevented if only drilling contractors knew which parts of the subsea system to replace and when. BOP monitoring systems have been developed to increase reliability by enabling preventive maintenance.
Deepwater Developments Driving Technip’s Technology
Record-setting megaprojects are driving innovation at the installation and subsea construction firm.
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12 May 2020