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古41041井是河南油田东部古城区块泌125断块布署的一口浅层大斜度双靶心定向井,该井设计井深837米,井底水平位移333.57米,平均井斜60.44°,针对该井水平位移大、平均井斜大、上部直井段易斜、地层松软易垮、难以造斜、靶区范围小、轨迹难以控制以及施工难度大等特点,通过实行优化设计施工剖面、详细制定钻进参数、分段钻具组合、合理钻井液体系等措施,使该井实现了安全优质快速钻井,准确命中设计目标,井身质量与固井质量合格率100%。
The ancient 41041 well is a shallow shallow double-target directional well with a depth of 837 meters and a horizontal displacement of 333.57 meters and an average well inclination of 60.44 °, which is arranged in the Segment 125 of the ancient city block in the eastern part of Henan Oilfield. The horizontal displacement of well is large, the average well inclination is large, the upper vertical well section is easily inclined, the stratum is soft and easily collapsible, it is difficult to make a slant, the target area is small, the trajectory is difficult to control and the construction is difficult and so on. Through optimizing design and construction section, Into the parameters, sub-assembly drill, rational drilling fluid system and other measures to enable the well to achieve safe and high quality fast drilling, accurate hit design goals, well bore quality and cementing quality pass rate of 100%.