Sucker Rod and Carbon Fibre Rod at a Glance

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Sucker Rod and Carbon Fibre Rod at a Glance
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• When it comes to sucker rods, you have two
  main options a conventional sucker rod or a
  carbon fibre rod. By understanding what each is
  and what it is used for, you can make an informed
  decision about which would be better-suited for
  your situation.

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Conventional Sucker Rod

• A conventional sucker rod is a steel rod
  measuring between 7 and 9 metres. Sucker rods
  come in an array of sizes, making them suitable
  for various RRP and PCP applications.

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• Sucker rods are usually used in conjunction
  with sucker rod guides. These are made from
  plastics with high-performance additives to
  increase strength, reliability, and production
  performance. Guides decrease contact of the metal
  of the sucker rod with the metal of the tubing,
  therefore increasing the lifespan of the tubing.

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• Rod guides come in a few different forms,
  allowing you to choose the right option for you
  according to application and whether you need
  paraffin removal or protection against wear.
  Options include

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• High flow twisted, for highly-deviated wells.
  This minimizes paraffin buildup.
• Straight vane, for reciprocating in low corrosion
  environments. It reduces fluid turbulence.

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• Extended straight vane, for reciprocating in
  high-volume wells. This features a wider vane to
  better distribute load and improve protection
  from wear.
• ShurSpin, for cavity pumping. This is able to
  lower hydraulic resistance and mechanical
  friction, leading to less torque.

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Carbon Fibre Rod

• A carbon fibre rod uses modern technology to
  improve upon the design of the conventional
  sucker rod. This results in lighter, smaller rods
  that offer a higher level of protection from
  corrosion, temperature, and fatigue. Carbon fibre
  rods also have steel end fittings to increase
  strength and reliability further. These steel end
  fittings are extensively tensile tested before
  assembly.

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• A top benefit of a carbon fibre rod is its
  increased production capabilities. Thanks to the
  greater strength and lower weight, there is less
  demand on the pumping unit. This means that pump
  size and speed as well as stroke length are able
  to increase. Plus, you can lower the pump for
  increased inflow.

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• If you decide to opt for a carbon fibre rod,
  there is no need to change your existing service
  equipment. You can install a carbon fibre rod
  with a conventional rod rig and it is easy to
  fish the carbon fibre rod with common overshot
  tools. In fact, you may even be able to downsize
  your surface equipment to decrease expenses.

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• Conventional sucker rods may be sufficient
  for your needs, particularly if there is a
  suitable sucker rod guide available to prevent
  any potential problems. However, if you want to
  increase production from deeper wells, carbon
  fibre rods are something that you need to
  consider.