DRILLING FLUID ADDITIVE AND METHOD FOR IMPROVING LUBRICITY OR INCREASING RATE OF PENETRATION IN A DRILLING OPERATION
    261.
    发明申请
    DRILLING FLUID ADDITIVE AND METHOD FOR IMPROVING LUBRICITY OR INCREASING RATE OF PENETRATION IN A DRILLING OPERATION 审中-公开
    钻井液添加剂和改善钻孔作业渗透率或增加渗透率的方法

    公开(公告)号:WO2009000068A1

    公开(公告)日:2008-12-31

    申请号:PCT/CA2008/001130

    申请日:2008-06-13

    Abstract: The present invention relates to a drilling fluid additive for improving lubricity or rate of penetration (ROP) in a drilling operation, such as an oil and gas drilling operation. The additive comprises particles of wax or waxy substance, or a mixture of two or more types of said particles having distinct properties, such as particle size, type of wax or waxy substance, melt point, solubility, dissolution rate, hardness, shape, blocking ability, or a combination thereof. In certain embodiments, the additive is environmentally friendly and biodegradable. The invention also relates to a drilling fluid comprising the drilling fluid additive of the invention. A method of improving lubricity or increasing ROP in a drilling operation is also provided, as well as a use of particles of wax or waxy substance or mixture thereof as a drilling fluid additive for improving lubricity or increasing ROP in a drilling operation.

    Abstract translation: 本发明涉及一种用于提高钻井作业(如油气钻井作业)中的润滑性或渗透率(ROP)的钻井液添加剂。 添加剂包括蜡或蜡质物质的颗粒,或两种或更多种类型的具有不同性质的颗粒的混合物,例如粒度,蜡或蜡质物质的类型,熔点,溶解度,溶解速率,硬度,形状,阻塞 能力或其组合。 在某些实施方案中,添加剂是环境友好的和可生物降解的。 本发明还涉及包含本发明的钻井液添加剂的钻井液。 还提供了一种在钻井操作中提高润滑性或增加ROP的方法,以及使用蜡或蜡质物质或其混合物的颗粒作为用于在钻井操作中改善润滑性或增加ROP的钻井液添加剂。

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