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IADC certification

IADC has a 65-year history, and is the only organization representing global drilling industry. IADC was founded in 1940, and was formerly oil well drilling contractor association of America with only 5 members paying membership fees at that time. The first chairman is J E Brantly, boss of drilling and exploration company. J E Brantly used to be a driller from graduation, he has not only created oil well drilling contractor association of America, but also written rotary drilling technical manual, birth of drilling industry and oil well drilling history.
Drilling industry has been changed greatly in comparison with Brantly times. IADC now has 800 members that own 5 drilling rigs. Average well depth in America in 1941 was about 3000ft, and increased to 3600ft in 1951, and even increased to 5572ft in 2001. The increase of well depth indicates that steam-driven rope drilling rig will be replaced by turntable drilling rig, and the huge technological advancement was also under dispute in drilling industry.
In the end of 20th century, underbalanced drilling was still not mature. At present, IADC has provided the optimal method and standard for underbalanced drilling and pressure-controlled drilling in its development guidance. IADC established underbalanced operation committee in 1989, and renamed it into underbalanced and pressure-controlled drilling committee recently. In 2004, American Petroleum Institute adopted the recommended method for swivel head manufacturing of underbalanced and pressure-controlled drilling committee of IADC, and identified the method as API recommended method of 16RCD. The committee has also published IADC classification system for underbalanced drilling.
Drilling refers to a global industry, but before the 1950s, most of drilling contractors only ran their business on their own rather than in international market. Modern drilling operation has crossed national boundaries. For example, drilling contractors of China has marched into Middle East and South America, drilling contractors of Germany has marched into Africa, Asia and Europe. Offshore mobile drilling rig was put into operation in the world in 1947, bringing about enthusiasm in offshore drilling in particular after petroleum was discovered in North Sea.
Basic documents and methods had been created early in the foundation of IADC, and some documents and methods are still in use today. For example, IADC wrote IADC drilling daily report, IADC manual and IADC safety manual in the 1950s. Drilling daily report was written in 1953, but was still in use in 1999 in the form of soft copy converted by IADC members.
IADC takes safety as the first importance all the time. In 1958, IADC and its partners wrote safety manual jointly, and the manual was renamed as health, safety and environmental protection guidance of IADC in second edition by offshore operation committee.
Drilling industry was still lack of a reliable training system to ensure well control identification, while IADC accepted such challenge, and set up a special task group composed of oil company, contractors, teachers and simulator development personnel as well as colleges and universities. The group completed IADC well control identification procedure in 1995, and completed drilling rig inspection procedure for underbalanced drilling in 2001.

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