Cased Hole Casing Patches
Developed to offer robust and reliable protection against everything from pinhole perforations to collar leaks, the product range includes expandable casing patches and tubular expandable liners.
Open Hole Expandable Liners
Our range of metal expandables encompasses all relevant sizes required to cater for applications both in Open Hole & for conventional Drilling Liner tie backs, resulting in minimal loss in diameter.
Casing Patches
For operators trying to isolate unwanted production, re-instate well integrity or boost the productivity of an existing well, expandable casing patches offer a reliable and cost-effective alternative to traditional solutions like cement squeezes or synthetic rubber packers.
Capable of rapidly isolating problem zones within the open hole with minimal loss of internal diameter (ID), they also allow you to effectively repair damaged casing and maintain the integrity of mission-critical wells, minimising downtime and protecting your ROI.
To date, over 300,000ft of our "Core" family of expandable casing patches have been successfully deployed to over 300 wells – facilitating cost-effective remediation and prolonging the life of productive wells all over the world.
Long-Lasting Seals
As well as remedying unexpected failures, our "Core" family of casing patches can also be used to optimise production in mature or underproducing wells.
Systems like our OnePatch, Reline WL and Reline MNS expandable solutions provide a life of well seal enabling the isolation of the ingress of unwanted water, gas or sand; sealing corroded or leaky casing and isolating compromised components like old sliding side doors (SSD) or gas lift valves (GSV).
These products are a popular choice for operators under pressure to deliver more for less; enabling you to stimulate and preserve production rates across the lifespan of your wells.
Our casing patches are also designed to seal problem zones with minimal loss of internal diameter; providing an optimised ID so that bridge plugs, drop balls, testing and perforation systems can be safely deployed through the patch.
This ensures that you can easily carry out further interventions or improvements in future, without compromising the integrity of your well.
It's never been more important to optimise the efficiency of your downhole operations. These are uncertain times for the O&G industry and operators all over the globe are struggling to extract extra value out of older, pre-established wells.
If you find yourself in the same position, get in touch with a member of our engineering team today. They'll be able to help you identify a product that’s suitable for your well - irrespective of whether you’re working with an openhole section of an old exploration well or a production well appears past its prime.
Case Study
A client operating in Alaska wanted to bring a temporarily-abandoned production well back online. Unfortunately, water had infiltrated the well from pre-existing perforations across a shallow formation. We deployed our 36ft 7” 26# OnePatch to isolate the problem zone and recomplete the well, with 0% water ingress from the isolated zone.
Environmental Protection
Some operators are also under a lot of pressure to ensure that their wells don’t leach drilling fluids, oil or formation water into the surrounding environment. Unfortunately, corrosion, pressure and wear caused by extended drilling operations can take their toll on new and old casing; causing hairline fractures and larger ruptures that allow contaminants to seep out of the wellbore.
In these situations, an expandable casing patch is an ideal way to isolate a problem zone that threatens to compromise your ability to produce gas or oil while complying with the necessary environmental regulations.
Providing a long-lasting alternative to traditional methods of sealing a section of wellbore, our casing patches form a steel seal that prevents any unwanted contaminants from leaching into the ground around your well – without compromising efficiency or reducing productivity.
Systems like our Reline WL, Reline MNS and Reline HYD casing patches are designed for deployment that minimise rig time and the associated costs, and systems like our OnePatch can also be deployed in live wells; allowing you to seal leaks without halting production.
In the past, cement squeezes or straddle / swellable packers were used to shore up leaky or perforated wells. While these methods are cheap and relatively effective, they do have some obvious shortcomings: Cement squeeze workovers have a high failure rate, and synthetic rubber packers cannot withstand the vagaries of hostile downhole environments.
Designed to provide a permanent seal in a variety of environments, they’re more than capable of withstanding harsh or hostile conditions. Compared to traditional rig workovers, casing patch solutions are also up to 50% cheaper, require less rig time and have a much higher success rate, making them ideal for any operator trying to restore well integrity without compromising their bottom line.
Following the acquisition of Mohawk Expandables and Churchill Drilling Tools in 2019, we’ve been working hard to perfect a process that allows us to assist oil and gas operators all over the globe; working closely with their teams to identify a specialist product that’s ideally suited to the target environment, and then deploying it in good time to seal off any unwanted perforations and restore full functionality with minimal downtime.
If you’d like to learn more about our expandables or talk to a member of our team about a well integrity issue, please get in touch using the contact form below.
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