DeadSet™ technology is a no-access active ranging system that is designed for plug and abandonments and relief wells applications (wellbore intercept). This technology can be used to locate a target wellbore safely and accurately in the event of a well control incident or a wellbore obstruction.
DeadSet™ works by injecting current into the formation from an electrode in the wireline assembly.
The current injected into the formation collects on the nearby target well casing, and a magnetic field is created around the target well. This field is sampled by the active ranging sensor in the open hole wireline assembly and analyzed through proprietary software to produce a distance and direction from the drilling well to the target well.
The accuracy of the DeadSet™ is such that the drilling well can be aligned with the precision required to contact, mill into and re-enter the target well. This allows for a deep cement plug to be placed with confidence on the inside of the target well casing, thereby guaranteeing a permanent and durable abandonment.
Wellbore Intersection
This is the process of intentionally connecting two wellbores. DeadSet™ can be used to accurately locate the target wellbore and ensure a safe and successful intersection.
Plug and Abandonment
This is the process of permanently closing a well. DeadSet™ can be used to locate the wellhead and ensure that the plug is properly placed.
Fishing Operations
This is the process of retrieving a lost or damaged object from a wellbore. DeadSet™ can be used to locate the object and safely retrieve it.
Safety
No-access system, therefore removing the need for the use of wireline tools and eliminating the risk of wellbore kicks and blowouts.
Accuracy
Typical accuracy of ±1 foot. This accuracy is essential for drilling operations that require precise wellbore placement, such as wellbore intersection and plug and abandonment.
Efficiency
Can be performed on short notice and done remotely. This saves time and money and allows for more efficient drilling operations.
- Carbon capture, Use and sequestration (CCUS)
- Complex plug and abandonment
- Relief Well
- Collision avoidance
- Open hole re-entry below a fish
- Complex completions