TOPICS OF INTEREST
What Damage Is Wrought by the Rush to Shut In Wells?
The Permian Basin is now influencing the upstream water market on the way down, while many questions swirl around the implications of unprecedented shut-ins.
Interview With George King: Better Practices for Well Shut In and Startup
The industry has very limited experience in shuttering production on a large scale in unconventional reservoirs. Many questions remain on how stimulated, nanodarcy shale reservoirs may respond. George King discusses the paradigm shifts needed in the industry.
KLX Energy Services To Merge with Quintana Energy Services
The merged companies will offer large-diameter coiled-tubing, directional drilling, snubbing, wireline services, and pressure pumping services.
Managing Risk and Reducing Damage From Well Shut-Ins
A technical synopsis of major considerations for unconventional wells facing prolonged shut-ins. The review includes deciding factors for kill fluid selection and risks of incompatible fluid mixing.
The Great Shale Shut-In: Uncharted Territory for Technical Experts
As tight-oil producers move to curtail production, hard-to-answer questions are being raised about how shuttered wells will come back. The issue reveals key uncertainties about the delicate flow paths that define unconventional reservoirs.
New OGA Wells Strategy Focuses on Improving Economics of UKCS Oil and Gas
The strategy supports the Maximise Economic Recovery from UK Oil & Gas Strategy and Vision 2035, whose goal is to achieve £140 billion additional gross revenue from UKCS production by that time.
Looking Inside the Well: An Interview With Visuray CEO Kambiz Safinya
Visuray is using its unique X-ray technology to improve downhole imaging.
Fiber Optic Diagnostics and a Vanishing Act
A company is selling a new well testing tool designed to be a cheaper, simpler way to do fiber optic sensing, and then it fades away.
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.
Real-Time, Single-Run CT System Provides Selective Perforating and Activation
A coiled-tubing selective perforating and activation system that transmits critical downhole data and measurements in real time is enabling well interventions that previously could not have been executed.
Disappearing Downhole Tools Eliminate Need for Intervention
Development of a new polymer composite that degrades via hydrolysis in hot water or brine holds potential for use in structural applications for intervention-less downhole tools.
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.
Thermal Effects on Subsea-Wellhead Fatigue During Workover Operations
Intervention and workover operations can significantly affect the structural integrity and fatigue life of subsea-wellhead systems. Methodologies for wellhead-fatigue analysis have improved, but have yet to account for thermal effects along the well. This study analyzes those thermal effects.
New Tool and Sealant Technology Expedites Annular Isolation Tasks
A new well intervention tool can solve annular isolation problems using a proprietary epoxy sealant placed at predefined locations, which can result in significant rig time savings. Field trial results are shared in this article.
Payoff Still Possible in Refracturing Conventional Wells
A refracturing campaign in the Permian yielded a production gain that allowed payback on the investment within 6–12 months.
Controlling Losses When Recompleting Low-Pressure Reservoirs
A challenge in many permeable, water-sensitive, subhydrostatic reservoirs is avoiding the loss of completion fluid when completing or working over wells.
Formation-Damage Diagnosis Facilitates Successful Remediation in Sandstone
Well-control fluids were used during a routine overbalanced workover operation in an offshore well completed in high-permeability sandstone.
Refracturing: A Second Chance To Get It Right Through Diagnostics
The surge in unconventional completions has created a substantial accumulation of previously hydraulically fractured wells that are candidates for hydraulic refracturing.
Conditioning Mature Vertical Wells To Stimulate and Test Shale Productivity
One of the most promising targets for resource-rock stimulation in South America is the Vaca Muerta (VM) shale in western Argentina.
Leveraging Subsurface Insight, Screening, and Diversion Technology in Refracturing
A challenging commodity price environment has forced operators to seek methods for sharply lowering recovery cost per barrel of oil equivalent (BOE) in unconventional plays.
ICD Well History and Future Use in a Giant Oil Field Offshore Abu Dhabi
As part of a project that involves the use of four artificial islands to drill and complete more than 300 extended-reach-drilling (ERD) wells in a giant offshore oil field, several completion designs have been piloted for brownfield development.
Halliburton Reveals Refracturing Strategy
Although refracturing is a topic that has gained a lot of interest, many shale producers have been sitting on the sidelines because early results did not justify the spending
Crown-Plug Pulling Performed as Riserless Light Well Intervention in the Gulf of Mexico
In a riserless-light-well-intervention (RLWI) operation in the Gulf of Mexico (GOM), a crown plug failed to release.
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15 September 2020
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15 September 2020