HyPR™ - Cementing Dart
When time is at a premium the cementing dart will give immediate side-tracking in a stuck pipe situation. After it has cut the string free the dart will remain in the fish. With the upper string now free and clear, cementing over the fish can begin right away.
HyPR™ - Fishing Dart
When attempting to fish the BHA is preferred, this dart leaves a clear unrestricted access to the fish after it has cut the string free. An interference added to its tail means that as the cut pipe is withdrawn it collects the fishing dart and carries it back to surface.