Mac-Seal
Two Part Product. Time Activated. Solid yet Flexible Once/When Cured. Various Viscosities
Mac-Seal Technical Data
Contact KCI to request the most up to date version
Mac-Seal SDS
Contact KCI to request the most up to date version
MS-Sealant
Two Part Product. Time Activated. Solid yet Flexible Once/When Cured. Various Viscosities. Formulated for Hotter Climates.
What is Control Line Plugging and why might it be required?
Control Line Plugging is used to reduce rig time and increase safety when pulling completions
For one major Oil and Gas Operator in the UK, KCI was requested to support their Well Abandonment project on two North Seas Platforms covering thirteen Wells in total
In another case, KCI was requested to provide isolations on three severed control lines on one well which operate downhole injection valves
How does Control Line Plugging work?
Each Control Line is flushed with Test Fluid to remove any obstructions to ensure injectivity and to determine if the lines held any pressure or not
Mac-Seal is used on Control Lines, creating plugs to totally plug and isolate the lines
Once completely cured, the lines are pressure tested to ensure no leaks are reported
What are the benefits of KCI’s Control Line Plugging?
KCI’s sealant can be deployed at the same time as ongoing Deep Set plugging operations
Deploying Mac-Seal into the Control Line saves rig time due to “Sim Ops”
There is a more reliable outcome due to no wireline miss runs etc.
This method is much less time-consuming than other operations, preventing a costly workover or long-term suspension
This value-adding, Rigless Isolation Operation saved the Well owner in the first case mentioned a significant amount of Rig time and potentially saved the project around £400k
Read more about our Control Line Plugging success stories here..
MS-Sealant/Mac-Seal FAQs
Click each question below to reveal the answer:
- Is MS-Sealant resin?
No, the resin will be cured into a high-strength solid, but MS-Sealant will be cured into a solid but flexible rubber material, like an eraser.
- What is the composition and activation principle?
The sealant is provided in two: a base compound and an activator. It is a time activated sealant that is mixed for 5 minutes before deployment.
- What effect does temperature have on sealants?
Temperature will affect the curing time: the higher temperature, the faster the curing. After mixing, there are 1 to 1.5 hours for deployment. Standard curing time is normally between 6-8hrs but 24hrs will ensure it is fully matured.
- What is the effective sealing life of this sealant?
The sealant itself can remain the same for at least 25 years, so the sealing life actually depends on the client’s requirement. It can be used for temporary or long-term use.
- How much sealant do you supply for each operation? Any contingency?
We have included a contingency volume of sealant so there are two opportunities to deploy the sealant on site. This is to cover any unknown activities or unplanned events, like a GPA sounding just after we have activated and mixed the sealant ready to deploy. By the time we got back to the well site after a muster or similar, the sealant may have cured to a point which we can’t inject.
Having a contingency sealant volume on-site would allow a second attempt without delay. This hasn’t actually happened as yet but it was identified as part of a Risk Assessment a few years ago so this is what we now recommend.
We have supplied a backup sealant volume to a customer for the last few years.
- If we were to pump KCI's sealant into a control line to block it off for pulling completion, does it need to be on a chemical permit?
Mac-Seal/MS-Sealant meets the exemption list for CEFAS Registration i.e. Maintenance Lubricants and Greases is therefore not required. Mac-Seal/MS-Sealant is classed as an emergency sealant material.
The function and use of Mac-Seal/MS-Sealant is a “Leak Sealing Compound”. It may be deployed into leaking Wellhead Seals or DHSV Hydraulic Control Lines as a product to provide a seal or isolation to support environmental-related issues.
It is designed to be used in a closed system and the scale of use is as an occasional or emergency compound and not a daily operational chemical.
There is no intentional discharge of the Mac-Seal/MS-Sealant Compound during all identified applications or uses.
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