新疆油田TAML4级分支井钻完井技术

DRILLING AND COMPLETION TECHNOLOGY FOR TAML LEVEL 4 MULTILATERAL WELLS IN XINJIANG OILFIELD

分支井技术是油田提高采收率、提高油气开采经济效益的前沿钻、完井技术,是继水平井技术之后发展起来的在一个井眼里钻出若干个支井的钻井新技术。由于其在大幅度提高油气开采效率及降低油藏开采费用等方面所具有的无可比拟的优势,近年来在国内外油田得以迅速发展。本文主要是结合新疆克拉玛依钻井工艺研究院依靠自主研发工具成功实施的LUHW 301Z双分支水平井,对目前应用最为广泛的TAML 4级分支井钻井完井所涉及的关键技术以及LUHW 301Z双分支水平井现场施工情况进行介绍。

Multilateral Technology has been becoming an important method of increasing production and improving the economic exploitation for oil and gas reservoirs, and it is a new technique of drilling some branch wells in one well bore and returning to the main well bore after the horizontal well developed technology. Due to substantial increase in its oil and gas production efficiency and cost reduction in areas in the exploitation of oil, this technology has the unparalleled advantage, and has developed rapidly at home and abroad in the oil fields in recent years. Combined with the successful implementation of the LUHW301Z two-branch horizontal well drilled by Xinjiang Karamay Drilling Technology Research Institute which relies on the independent tool developed by themselves, the related key technology involved in the drilling and completion of the current most widely used TAML 4 branches and the in-site construction of the LUHW301Z two-branch horizontal wells are introduced in the paper.