Understanding Tubing Anchors Within Oil Drilling, Part 1

At Oilfield Equipment & Manufacturing, we’re proud to specialize in a few specific products related to downhole drilling within the oil drilling world. We offer a wide variety of rod and pump components, including subsurface pump parts, but perhaps our most well-known service is our production of tubing anchor products.

Also referred to in some cases by the overall component name, tubing anchor catcher (TAC), this product is a vital tool for efficient pumping operation in modern oil pumping fields. In this multi-part blog series, we’ll go over everything you need to know about tubing anchor products, the role they play in the oil drilling world, and some of the specifics to be aware of when it comes to installing and operating our high-quality tubing anchors.

tubing anchors oil drilling

Tubing Anchor Basics

Broadly speaking, a tubing anchor catcher is a device meant to anchor the tubing spring to your casing at any required depth for drilling. The device maintains a constant tension rate during pumping, stopping components from breaking off or parting pipe from falling into the well during use.

For this reason, tubing anchor catchers are used in nearly all rod pumping applications when tubing tension is an important factor. It goes a long way toward limiting breathing or buckling, which in turn limits your operating costs in areas like rod and tubing wear. This means you’ll have fewer pulling jobs, plus a more efficient production method by lengthening the pump stroke and volumetric efficiency.

Specific Benefits

Some of the direct features and benefits associated with tubing anchors:

  • Increasing efficiency, as noted above
  • Limiting operating costs based on maintenance needs caused by casing, tubing or rod wear by limiting such wear to begin with
  • Prevents upward and downward movement with a double-grip slip
  • Is easy to operate, with a simple left-right rotation
  • Safe due to a straight pull emergency release, one that comes with adjustable shear pin force
  • Simply and affordable to redress

Why Tubing Anchors Are Needed

So why are tubing anchors needed in an oil drilling application? To answer, here are some of the results for systems that do not use TACs, instead allowing their tubing to hang free with no support:

  • Major wear-and-tear risk on rods, tubing, casing and even the pump itself
  • Limited pumping efficiency, especially as the issues worsen
  • As a result, increasing operating costs, from repairs to power consumption
  • Buckling based on piston effects like breathing, buoyancy and ballooning

When a TAC is installed, however, these effects are limited or eliminated entirely through the creation of tension. The tubing string is anchored, allowing it to stretch further without any damage while the TAC holds it straight.

For more on tubing anchors and related products, or to learn about any of our oil rig component manufacturing, speak to the staff at Oilfield Equipment & Manufacturing today.