TOPICS OF INTEREST
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.
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.
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.
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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16 April 2018