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浅薄层稠油热采新工艺关键技术研究

China Petroleum Machinery(2012)

Cited 22|Views13
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Abstract
稠油热采新工艺应用中前期先导试验时采用光油管注汽,出现注汽热效率低、部分井套管和固井水泥环被破坏等问题。为此,研制了Y341-115热采封隔器等配套工具。配套工具与井筒隔热技术相结合,使浅薄层稠油油藏得到了有效动用和开发。此外还根据现场工艺管柱的特点,配套开发了张力油管锚、大流道单流阀等工具,解决了隔热和反洗井等问题,实现了隔热注采合一的功能。Y341-115隔热封隔器配套工艺技术现场共应用500多井次,其工艺成功率达98%以上,累计节约作业井次400多次,累计增加产油量8 312 t。
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Key words
thermal recovery,large channel check valve,heavy oil,well bore heat insulation,heat insulation packer,tension tubing anchor
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