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随着油田开发进入后期,套管损坏、井内落物、单井产量下降等原因造成部分油井形成低产井或停产报废。为此老井小井眼侧钻技术是老井修复盘活、提高采收率的重要手段,特别是开采薄层油层、裂缝型、尖灭型等油藏。针对目前塔河油田老区块在老井基础上进行套管内开窗或裸眼侧钻(中)短半径水平井,本文从套管开窗或裸眼侧钻开始,对老眼侧钻过程中存在技术难题从钻井提速方面进行探讨研究。
With the oilfield development into the late, casing damage, downhole objects, single well production decline and other causes of some wells to form low production wells or discontinued scrapped. For this reason, the old well slim hole sidetrack drilling technology is an important method for old wells to repair and improve the recovery rate, especially for the exploitation of thin-bed reservoirs, fractures and pinch-out reservoirs. In view of the old block in the old Tahe oilfield based on the existing open-hole or open-hole or open-hole (medium) short radius horizontal well, this article from the casing window or open hole side of the eye, there are technical problems in the old eye sidetracking Study on drilling speed improvement.