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Unlocking unconventional resources with managed pressure drilling

机译：用管理压力钻探解锁非传统资源

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摘要

In the strategic quest for more sustainable and secure gas supplies,operators worldwide are working around the clock to commercially validate and extract unconventional gas resources.This is being done in both deep and shallow plays,using the most efficient and environmentally sustainable methods.In one Middle Eastern field,attempts to validate unconventional gas resources were faced with numerous challenges.The gas-bearing formations were unconsolidated,increasing hole instability risk,and the constant presence of gas in the mud returns often triggered well control respons es from the driller.This led to further increases in the Mud Weight(MW)and resulted in drilling challenges,such as slow rate of penetration(ROP);formation damage;poor logs quality;drilling fluid circulation losses;well control incidents;and differential stuck pipe.
机译：在战略追求更可持续和安全的天然气供应中，全球运营商正在全天候努力，以商业验证和提取非传统的天然气资源。这是在深层和浅薄的戏剧中进行，使用最有效和环境可持续的方法。 中东地区，试图验证非传统气体资源面临着许多挑战。含气体的形成是未巩固的，增加空穴不稳定风险，并且泥浆返回的气体恒定存在通常从钻子触发井控制反应。这 导致泥浆重量（MW）进一步增加，导致钻孔挑战，例如渗透速度（ROP）;形成损伤;较差的日志质量;钻井液循环损失;井控制事件;和差动卡管。

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