Remedial systems designed to restore casing or tubing integrity by sealing leaks, corroded sections, or damaged connections.
Patch-thru-patch systems are remedial solutions designed to restore casing or tubing integrity by sealing leaks, corroded sections, or damaged connections. These expandable patches are engineered to deliver a slim, high-pressure seal while preserving access and production efficiency.
Their unique design enables multiple patches to be installed within the same section, making them a cost-efficient, rigless alternative to heavy workovers.
Isealate Springblade Patch
The Isealate Springblade Patch is a unique downhole repair solution, utilizing a pre-rolled laminate steel sheet to remediate leaking or damaged tubing.
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.
Welltec® Delta Xpander — Internal Patch (WDX-IP)
The Welltec® Delta Xpander Internal Patch (WDX-IP) is a wireline-deployed, metal expandable sleeve designed to restore full well integrity by restricting inflow and/or outflow in damaged or corroded well casings, covering perforated zones, and protecting downhole hardware.
With no more than a 6-7 mm effect on the tubing's inner diameter (ID), the WDX-IP allows for patch-thru-patch operations with 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.
This utra-slim profile addresses two of the most common pain points associated with leak remediation and the installation of patch solutions:
1) Access beyond an installed WDX-IP is retained
2) Flow rate is largely unaffected
Compatible with a range of tubing types (5.5"), the WDX-IP enables rapid, rigless remediation by sealing off problem zones and protecting downhole hardware — all without the need for heavy intervention or prolonged downtime.
Patch-thru-Patch solutions simplify complex well repairs, delivering quick, efficient, and rigless remediation.