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首页> 外文会议>SPE Middle East Oil Gas Show and Conference >Hybrid Drill Bit Technology Achieves Breakthrough Performance in Challenging 16-in. Section - Gas Wells in Saudi Arabia
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Hybrid Drill Bit Technology Achieves Breakthrough Performance in Challenging 16-in. Section - Gas Wells in Saudi Arabia

机译：混合钻头技术在挑战16-IN方面取得了突破性。 Section - 沙特阿拉伯的煤气井

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Use of 16-in. vertical sections in onshore deep gas drilling operations in Saudi Arabia presents challenges with a high risk of total drilling fluid loss in interbedded formations. The formations comprise carbonates, limestones, shales, anhydrites, and abrasive sandstone with pyrite inclusions, where the rock hardness is 10 to 15 kpsi unconfined compressive strength (UCS). To minimize the risk of loss, the high bentonite mud system is implemented. The bit consumption averages two tungsten carbide insert (TCI) bits per section, and high average dull grading conditions are observed (IADC 3-4-WT), coupled with low rate of penetration (ROP) performance across the whole section. Though an in-depth offset well study, including bottom-hole assembly (BHA) analysis, bit dull condition review, evaluating the high bentonite mud effect, and the UCS formation trend, the potential to drill the 16-in. section in a pilot well in a satellite field (using hybrid bit technology) was determined. This paper outlines the development of the best drill bit technical solution, optimizing the use of crushing (TCI inserts) and shearing effect (polycrystalline diamond compact – PDC) cutting structure configuration to drill the section in the minimal time and cost possible. The results observed in the pilot well confirmed that one hybrid bit had the ability to drill the total section. A 138-percent increase in the rate of penetration (ROP) versus relevant offsets, and a decrease 2.3 operational days and 50% cost per foot reduction. The hybrid bit reached the total depth (TD) section without any operational issues, where the risk of losses was minimized, and a proportionate normal dull condition in the cutting structure was observed. The technical compatibility of the hybrid technology was demonstrated with outstanding performance for the operator.
机译：使用16英寸。沙特阿拉伯陆上深气钻井业务的垂直部分呈现出堵塞地层总钻井液损失风险的挑战。该地层包含碳酸盐，石灰岩，Shales，无水砂岩和磨料砂岩，其中岩石硬度为10至15kPSI不包含抗压抗压强度（UC）。为了最大限度地减少损失风险，实现了高膨润土泥浆系统。比特消耗平均每段平均两个碳化钨插入物（TCI）比特，观察到高平均钝化分级条件（IADC 3-4-WT），整个截面上均具有低渗透率（ROP）性能。虽然深入偏移井研究，包括底孔组件（BHA）分析，比特钝化条件评论，评估高膨润土泥浆效应，以及UCS形成趋势，潜力钻16 in。确定了在卫星场中的试验领域（使用混合比特技术）。本文概述了最佳钻头技术解决方案的开发，优化了粉碎（TCI刀片）和剪切效果（多晶硅钻石 - PDC）切割结构配置，以最小的时间和成本钻头。在试点中观察到的结果确认了一个混合位有能力钻取总部分。渗透率（ROP）与相关抵消的速度增加138％，减少2.3运行日，每股50％减少50％。杂交位达到总深度（TD）部分而没有任何操作问题，其中损耗的风险最小化，并且观察到切割结构中的比例正常钝化条件。混合动力技术的技术兼容性对操作员的出色表现。

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