LORD Corporation — a developer of motion and vibration control systems for the oil and gas industry — has deployed the Generation 3.0 prototypes of the SoftShoe product line for field testing. 

According to Jonathan Owens, director, Oil and Gas Downhole Systems at LORD Corporation, this advanced version another example of the company’s continual expansion of its multistage downhole isolation system product family. Previously commercialized products include the LORD Axial Isolator and LORD Snubbers.

The next generation SoftShoe, developed to protect probe-style MWD tool strings from high-energy axial shock, offers improved performance over Generation 2.0 tools. Specifically, this new generation is designed with a dual compression compliance element, as compared to single compression in previous versions, to provide additional longevity. Offering the same high performance as the patent-pending Generation 2.0 prototypes, the improved innovative design ensures that whether a net compressive or a net tensile load is applied, the proprietary-working elastomer section is put into compression.

Design features and benefits include:

  • Dual compression operation
  • Adapts to Muleshoe Sleeve
  • Snubber for the entire tool string
  • Replaceable elastomeric package
  • Natural Frequency: 80 Hz
  • Isolates instantaneous shocks at critical electronic frequencies (200+ Hz)
  • Attenuates high-energy transient shocks (duration ≤ 3ms)
  • Low operating cost

Customers from the previous model have reported greater than 50 percent reduction in shock events over 30g’s with more than 500 circulating hours below rotary table. The same rigorous field testing plan used in the development of the LORD axial isolator will be used to validate the ruggedness and reliability of the SoftShoe product line, ensuring minimal product variations and a stable product line. 

“The LORD Engineering team uses a scientific approach to collect and compile downhole run parameters to develop robust solutions since no two runs or wells are identical,” says Owens. “We work with customers to drill in as many different conditions as possible to prove superior shock mitigation before we consider a product commercialized.”

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