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The Patented kwik-ZIP® inert centraliser system was originally invented for the commercial Water Well Drilling industry by the operators of Western Australia's largest privately owned specialist Water Well Drilling Company.

kwik-ZIP® centralisers were first used to centralize fiberglass casing on high temperature, highly corrosive artesian wells up to 2,800 ft deep, constructed for the Western Australian Department of Environment.

Since then kwik-ZIP has obtained quality certification to ISO 9001:2000 and has further developed kwik-ZIP products for the wider Drilling Industry.

Applications and clients in vertical drilling are now very diverse and include the following examples;

  • Large diameter fiberglass water wells for The Great Man Made River Authority in Libya
  • High pressure injection wells at Barrow Island, Western Australia for Chevron
  • Coal bed methane wells in the USA
  • In-Situ Leach Uranium Production & Injection Wells for the Beverly Uranium Mine in South Australia.
  • Aquifer Storage & Recovery (ASR) Wells in Florida, USA

In addition, many non vertical applications are emerging including cased crossings and rock-bolts and soil nails.

Today, many well construction standards around the World require the use of inert casing centralizers to help protect the casing or screen from the effects of corrosion, and to ensure that a grout seal is not compromised by carbon steel centralizers that corrode over time, potentially leaving cavities behind in the grout.

It is also extremely important that inert centralizers are utilized on gravel packed screens to ensure an even gravel pack that does not produce sand, and to avoid the possibility of a steel centralizer promoting corrosion in the stainless steel screen as water passes over the dissimilar metals at high velocity.

Among the Standards either requiring the use of centralizers and/or recomending the use of inert centralizers on production wells and/or monitor wells are;

  • The National Ground Water Association (NGWA) Manual of Water Well Construction Practices, 2nd Edition, NGWA Press. USA
  • The Minimum Construction Standards for Water Bores in Australia, 2nd Edition, National Minimum Bore Specifications Committee, Australia

Further details of specific applications are listed under the Industries Served page. Also refer to the animation on the Home Page for demonstration of the system.