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Home > KOSUN News >
Advantages of Oil Base Drilling Fluid and Its Development History in China
Sep 23, 2019
Oil-based drilling fluid has such remarkable advantages as strong inhibitive ability, high temperature tolerance, good pollutant resistance, oil & gas reservoir protection, good lubricating property, strong corrosion resistance, etc., has experienced the development history from crude oil, water-free oil base (diesel), water in oil (diesel), low colloid water in oil, low toxicity water in oil and water-free oil base (white oil), and presently serves as a primary means in drilling deep well, highly-deviated well, horizontal well and various complex strata.
Since 1980s, oil-based mud is successively used at oilfields of Huabei, Xinjiang, Zhongyuan, Daqing, etc. Oil-based mud has a rather limited application in China due to its high cost, but many foreign countries have always been using oil-based mud in drilling deep well, ultra-deep well, highly-deviated directional well, horizontal well and water-sensitive complex strata, as well as in protecting oil & gas reservoirs.
From 1950s to 1960s, water-free oil-based drilling fluid
Water-in-oil emulsion drilling fluid with diesel as base oil
In the 1970s, activity-balanced water-in-oil emulsion drilling fluid
Low colloid water-in-oil emulsion drilling fluid
In the 1980s, low toxicity water-in-oil emulsion drilling fluid with mineral oil as base oil
Since the 1990s, with the purpose of further improving the cuttings carrying ability of oil-based drilling fluid, increasing the rate of penetration and mitigating the damage to environment, some new systems have been launched and oil-based mud technology makes new progress.
At present, along with further exploration and development, there will more and more complex wells, such as deep well, highly-deviated well, extended reach well, complex stratum well, etc. and oil-based drilling fluid will be the primary means in solving these complicated problems. Water-free oil-based drilling fluid is still in the stage of study, test and improvement in China. Although oil-based drilling fluid is high in cost, it can solve difficult problems that are hard for water-based drilling fluid to settle, and will reduce complex situations, increase the rate of penetration and lower the total drilling cost, so it has an extensive application prospect.
Since 1980s, oil-based mud is successively used at oilfields of Huabei, Xinjiang, Zhongyuan, Daqing, etc. Oil-based mud has a rather limited application in China due to its high cost, but many foreign countries have always been using oil-based mud in drilling deep well, ultra-deep well, highly-deviated directional well, horizontal well and water-sensitive complex strata, as well as in protecting oil & gas reservoirs.
From 1950s to 1960s, water-free oil-based drilling fluid
Water-in-oil emulsion drilling fluid with diesel as base oil
In the 1970s, activity-balanced water-in-oil emulsion drilling fluid
Low colloid water-in-oil emulsion drilling fluid
In the 1980s, low toxicity water-in-oil emulsion drilling fluid with mineral oil as base oil
Since the 1990s, with the purpose of further improving the cuttings carrying ability of oil-based drilling fluid, increasing the rate of penetration and mitigating the damage to environment, some new systems have been launched and oil-based mud technology makes new progress.
At present, along with further exploration and development, there will more and more complex wells, such as deep well, highly-deviated well, extended reach well, complex stratum well, etc. and oil-based drilling fluid will be the primary means in solving these complicated problems. Water-free oil-based drilling fluid is still in the stage of study, test and improvement in China. Although oil-based drilling fluid is high in cost, it can solve difficult problems that are hard for water-based drilling fluid to settle, and will reduce complex situations, increase the rate of penetration and lower the total drilling cost, so it has an extensive application prospect.