RLWI Crown Plug Pulling with Well Stroker®
Deviation over zone of Packer53.80° to 57.89°
Max. temperature143°C (290°F)
Max. pressure2,992 psi
The Well Stroker is a proven, reliable contingency solution to remove the plugs and proceed with the operation as it can apply a significantly higher, non-jarring force, up to 60,000 lbs, exactly where needed downhole.
On a recent RLWI operation in the Gulf of Mexico, the Well Stroker was put into action when the upper crown plug failed to release despite hundreds of jarring attempts on slickline. Over the course of two days, several slickline runs were performed.
On the first slickline attempt, 148 jarring attempts failed to free the plug. On the second run another 199 jar impacts yielded the same result. It was believed that these attempts may have broken the seal, which would then have resulted in saltwater inflow creating hydrates. 25% Methanol Ethanol Glycol (MEG) was pumped while jarring, but when no progress was made Welltec® was called upon to assist.
The Well Stroker was then activated, setting the anchors in the pre-planned location and applying sufficient force to pull the plug free. Then the entire assembly and the SSL were retrieved to surface. Although the Well Stroker has a bi-directional ram, only up-strokes were performed in this operation as down-strokes would have resulted in releasing from the plug.
The alternative to the Well Stroker contingency would have been to bring in a workover rig with full surface riser capability. This would have increased the operational costs significantly as well as delaying any production. However, the use of an e-line solution facilitated the continuation of the RLWI operation with minimal NPT and at a much lower costs.
The Well Stroker can be fitted with the Well Key® for further mechanical services and combined with a number of other e-line intervention tools. Together they offer a perfect solution for contingency planning on RLWI operations.
In just 14 strokes, the Well Stroker accomplished what 347 slickline pulling attempts couldn’t; freeing the upper crown plug.
The Well Tractor was regarded as a revolution in the industry when it was introduced in the 1990’s. It enables operators to extend the reach of traditional e-line deployment into highly deviated and horizontal wells.
The Well Stroker can push or pull multiple times in the same run irrespective of the depth and deviation. It delivers up to 100,000 lbs of axial force downhole using a bi-directional hydraulic ram.
Welltec Release Device (WRD®) is a simple tool which adds versatility and risk reduction to the operation. It provides predetermined locations in the toolstring where it can be parted, should it become stuck.