Cemented monobore wells offer operators an economically viable method of completing wells with life expectancies of three to five years. These wells have become the mainstay in the Gulf of Thailand and are prevalent throughout the Asia Pacific Region. The concept of disposable wellbores is also growing in popularity in other Regions worldwide. Because they preclude the use of packers and positive seals, disposable wellbores have, until now, posed a problem with regard to environmental impact and personnel safety. Additionally, because industry-standard gas lift devices are not cement tolerant, there has been no reliable method to gas lift these wells as production levels decrease.
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