Ultra slim relining and repair solution
With no more than a 4-10 mm effect on the inner diameter (ID), this patch-thru-patch solution offers all the benefits of straddles and larger steel patches, but with a more rapid deployment capability and total flexibility for customized relining, repair, and well integrity.
Featured case
A groundbreaking intervention in a European onshore gas producer, where a shallow leak had developed in the 3-½” (9.3 ppf) tubing, just below the Tubing-Retrievable Surface Valve (TRSV), resulting in tubing to A-annulus communication.
Featured case 2
A gas-lift oil producer well in Alaska encountered a critical tubing connection leak at a depth of 5,000 ft. From its original 2.992”, the inner diameter (ID) of the tubing could not be reduced any further than 2.7” as a result of repair.
Each Isealate Springblade Patch is deployed in a pre-rolled form, held under tension by shearable clamps.
When run in hole, the patch is delivered to the precise location required to cover the leaking or damaged section of tubing, and is quickly expanded by a setting tool controlled at the surface.
The patch immediately conforms to the tubing ID, and a heat-activated resin (pre-applied) further facilities complete sealing.
The slim design allows for subsequent patch-thru-patch deployments and does not interfere in any way with future interventions.
| Applications |
| Eroded/pitted pipe |
| Leaking connections |
| Screens |
| Slotted liner |
| Pre-perforated pipe |
| Features |
| Accurate placement inside the tubing/casing |
| Installed by the purpose built Isealate Patch Activation Tool |
| Material: 4310 spring steel |
| The epoxy cures and hardens by well temperature |
| Can be punched/perforated after being installed |
| Benefits |
| Deployed on standard e-line (monoconductor) |
| Posible to run through restrictions: patch-thru-patch application |
| Minimal loss of flow rate |
| Allows for almost full access for subsequent interventions |
| Specifications* | |
| Running tool OD | 2.68” 4.33” |
| Pipe OD | 3 ½” → 5.5”- (7”)* |
| Patch length | 9.8 ft → 14.4 ft |
| Collapse Pressure | 2.4" 3.4" 1450 → 3625 psi* |
| Burst Pressure | Equivalent to burst rating of pipe |
| One layer thickness | 1/64” |
| Well temperature range (Springblade Patch) | 113 F → 230 F |
| Well temperature range (Running tool) | 50 F → 250 F |
| * Dependent upon application and well conditions |
Talk to your local expert
At Welltec, our team of specialists is experienced in resolving the unique challenges of well drilling and operations across diverse terrain. Whatever your need, we can help you find a solution.