TRUE-TAPER XR Enhancement

TRUE-TAPER XR coiled tubing string comprises individually tapered strips of steel, facilitating the welding of equal gauge material. This reduces stress concentrations, yielding improved fatigue performance.

True-Taper coiled tubing string used on job site
Description

TRUE-TAPER XR is currently available for QT-900 through QT-1400 conventional grades and all ATP grades.

Recently, we have worked closely with our steel suppliers to develop shorter TRUE-TAPER XR taper sections that allows us to more precisely distribute the coiled tubing string weight in the lateral. Horizontal wells with long laterals require heavy-wall tubing in the vertical section to beyond the heel into the lateral. Once in the lateral, the string wall transition needs to go from heavy to light wall as quickly as possible. Quicker transitions may also result in a reduction of overall string weight, which is always welcome in today's ever-changing and demanding market.

As horizontal wells are consistently being drilled with longer laterals, it has become more challenging for coiled tubing to reach total depth (TD). Changes in coiled tubing string designs have shown that the use of shorter taper sections is essential in getting better results.

Working closely with a customer, we were able to reduce the total tapered section lengths of a 2⅜-in. QT-900 coiled tubing string design by 64.5% compared to a conventionally tapered design.

With conventional tapers, going from 0.224 to 0.134 in. would require four taper sections, and the total average length of the tapers going from 0.224 to 0.156 in. is approximately 4,315 ft.

  • Taper one: 0.224 to 0.203 in.
  • Taper two: 0.203 to 0.175 in.
  • Taper three: 0.175 to 0.156 in.
  • Taper four: 0.156 to 0.134 in.

With our new TRUE-TAPER XR tapers, going from 0.224 to 0.134 in. only requires two taper sections, and the total average length of the XR tapers going from 0.224 to 0.156 in. is approximately 1,530 ft.

  • Taper one: 0.224 to 0.156 in.
  • Taper two: 0.156 to 0.134 in

Advantages

  • Internal wall steps at the bias weld eliminated, producing a smoother inside diameter (ID)
  • Welding similar gauge material eliminates stress concentrations
  • Higher usage to pipe in high-cycle and deviated well conditions due to fewer bias welds needed
  • Achieves better reach in longer laterals
  • Lighter overall coiled tubing string weight
Resources
  • TRUE-TAPER XR Flyer

  • Bakken Oil Report Fall 2019 - Optimized coiled tubing string design extends lateral length, improves time to bottom

  • True-Taper XR Helps Achieve Record Depth Case Study

Related Products

ATP Coiled Tubing

The Quality Tubing ATP coiled tubing uses state-of-the-art thermal processing throughout the manufacturing process to achieve the most advanced coiled tubing product available on the market.

Learn more

Conventional Coiled Tubing

Our conventional coiled tubing is manufactured from high-strength, low-alloy steel (HSLAS) with alloying additions to provide resistance to atmospheric corrosion.

Learn more

Cerberus Modeling Software

Accurately predict and analyze cumulative forces at each stage of a coiled tubing, wireline, slickline, or jointed pipe job with Cerberus.

Learn more

ES Series Ram Type WCE

Our ES Series ram type well control equipment (WCE) is smaller and lighter than any other comparable WCE on the market today.

Learn more

Intervention and Stimulation Aftermarket Solutions

Reduce total cost of ownership of your coiled tubing, stimulation, acidizing, wireline, sand handling, and cementing equipment with our aftermarket solutions.

Learn more

Related Tools

Silhouette of Hydra Rig Injector

Coiled Tubing Calculator

Manually calculating coiled tubing specifications can be challenging, so we've been working on a solution.
Learn more

Intervention and Stimulation In stock Inventory

Coiled tubing, nitrogen, pressure pumping, cementing, and wireline in-stock inventory ready to ship worldwide
Learn more