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METHOD FOR PROCESSING bottomhole formation zone of oil wells

机译:油井井底成藏带的处理方法

摘要

1. A method for pressure processing oil well bottom zone formation comprising injection of an acid aqueous solution over 5 MPa into the formation with subsequent exposure process, characterized in that the acidic aqueous solution is a 0.5-1% aqueous solution of the agent with phosphonic acids (AFC), the injection for 7-10 days under a pressure of 8 MPa in a volume of 1 to 2 m mna dissected effective reservoir thickness, followed by the process soaking for 7-10 dney.2. A method according to claim 1, characterized in that when injected at least 1 m 0.5 mna dissected effective thickness formation within 10 days of exposure process is carried out while maintaining the pressure in the well MPa.3 5-8. A method according to claim 1, characterized in that when injecting mna 1 m 2 effective thickness of the exposed layer earlier than 7 days, the remaining time until the process extracts produce prodavku into the formation an aqueous solution of the AFC process fluid (for example water, salt water, oil and so on. f.) under a pressure of 5-8 MPa.
机译:1。一种对油井底部区域地层进行压力处理的方法,包括将5 MPa以上的酸性水溶液注入地层中,然后进行暴露步骤,其特征在于,酸性水溶液是该试剂与膦酸的0.5-1%水溶液。酸(AFC),在8 MPa的压力下以1-2 m mna的体积注入7-10天,分析有效储层厚度,然后将过程浸泡7-10 dney。 2.根据权利要求1所述的方法,其特征在于,当注入至少1m 0.5mna时,在保持井中压力MPa.3 5-8的情况下,在暴露过程的10天内进行了有效厚度的形成。 2.根据权利要求1所述的方法,其特征在于,当在7天之前注入mna 1m 2有效厚度的暴露层时,直到所述方法提取物的剩余时间将prodavku注入到所述AFC过程流体的水溶液中(例如f。)在5-8 MPa的压力下。

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