Do you have custom sizing available for special circumstances such as going through a patch?
Yes. Due to the increased annular area provided by our Slimline® tubing anchor catchers, we are able to customize our tools to operate in several unique downhole conditions, such as setting in a liner or below a casing patch. We modify the tools to the exact, well-specific dimensions needed in order to provide a tubing anchor catcher solution.
What if I’m using a pump larger than the ID of the TAC?
If a pump larger than the ID of the Slimline® is desired, the anchor should be placed below the seating nipple. This placement has generally not been an ideal location within the wellbore, but with the reduced OD of the Slimline®, the risk of material building up on top of the anchor has been greatly reduced or eliminated.
Can the tool be cut over if it gets stuck?
Absolutely. As with any downhole tool, in worst-case scenarios it may be necessary to cut over a Slimline® anchor. A conventional tubing anchor catcher can take several days to cut over, because the conventional anchor’s OD requires that the entire length of the tool must be milled to be removed. In contrast, our TechTAC® Slimline® tubing anchor catchers can dramatically reduce that cut over time because only the slip protectors and slips need to be cut. The rest of the tool fits inside a mill shoe or washover pipe. We have testimonials of our anchors being cut over in as little as 20 minutes. This benefit alone allows you to set the tubing anchor catcher deeper in the well with less worry about retrieving it.
What is the emergency release procedure?
If it is impossible to release the Slimline® Tubing Anchor Catcher in the designated manner, all tools are equipped with emergency shear pins. An up-strain greater than the total shear strength of the shear pins plus the weight of the tubing will shear the pins and release the tubing anchor catcher.
We want to keep using our current distributor.
TechTAC® sells through local pump shops and service companies and will happily contact the service company of your choice. This allows operators to continue using the service companies they know and trust while expanding the inventory of the service company. Contact us today to find an authorized dealer near you!
Where do you set the tool?
The Slimline® anchor can be set above, in or below the perforations, depending on the size of the sucker-rod pump installed. With the decreased overall diameter and tapered flow deflectors, our tools can greatly reduce the tubing anchor restriction in the annulus.
We’ve run traditional tubing anchor catchers for decades, why change now?
You will still get the safe, reliable setting procedure of a conventional tubing anchor catcher, only now you have less restriction, better flow-by, and more options on where to set the tool. With such a small area between the tool and casing, a conventional tubing anchor catcher can act as a choke, restricting gas flow up the annulus or gathering sediment on top of the anchor that can harden over time. With our patented Slimline® design, flow-by capacity up the annulus has been shown to increase by as much at 244% when compared to a conventional anchor. This increased capacity allows for fluids to more easily fall past the tool, allowing gas to break out easier and reduce the risk of a stuck string. In addition, the Slimline® QuickSet™ TAC only needs 1-to-3 counter-clockwise turns to set the tool versus 6 to 8, thereby allowing for a much more reliable set in deviated wells.
Will a Slimline® help minimize gas locking?
Yes. The smaller diameter of the patented Slimline® Tubing Anchor Catcher increases flow-by capacity and reduces the overall restriction, or “choke,” provided by a conventional tubing anchor catcher. This allows natural gas to break out easier up the annulus and not be forced through the pump, thereby greatly reducing the occurrence of gas locking.
What sizes are available?
We currently offer 4″, 4.5″, 5″, 5.5″, 7″, and 7-5/8″ Slimline® Tubing Anchor Catchers, with other sizes available upon request, including unique or custom-built tools.
How do they set/release?
Our Slimline® tubing anchor catchers set and release the same as most conventional tubing anchor catchers: left-hand set, right-hand release. Complete instructions are provided on our Resources page.
How much tension can be pulled?
Our tools utilize emergency shear pins which provide 5000 lbs of shear per pin. The max shear allowed on our 4.5” Slimline® is 50,000 lbs. On the 5.5” and 7”, it is 60,000 lbs.
Are they available in both right and left-hand set?
Yes. Typically tools are left-hand set but right-hand set tools are available upon request.
What are the benefits of running a Slimline® vs. a standard or conventional anchor?
Check out the benefits and more on our Resources page.
In some cases, the trajectory of a well not only exhibits high dog-leg severity (DLS) but also has a “cork-screw” geometry present in the wellbore direction. How does the Slimline® anchor overcome these challenges better than a conventional anchor?
In deviated and cork-screwed wells, it’s difficult to get the torque from surface turns down to the anchor, especially in deeper wells. The Slimline® QuickSet™ TAC, however, only requires 1-to-3 turns to fully set versus 6 to 8, thereby reducing the required torque that builds up in the tubing string.
How does the “slim” design of the Slimline® reduce the precipitation of scale, paraffin or iron sulfide at and near the anchor?
The Slimline’s increased flow area compared to a standard anchor provides for less velocity around the anchor, thus resulting in less pressure drop. Scale and other plugging agents tend to form at areas where there is a pressure drop.