油田化学

石墨烯纳米片延长阻垢剂挤压处理的寿命

本研究提出使用石墨烯纳米片作为预冲洗系统，以延长传统阻垢剂挤压处理的使用寿命。

GNP 与 P-GNP 的 TEM 图像。
图1——GNP与P-GNP的EM图像。
来源：SPE 215228。

阻垢剂挤压 (SISQ) 处理是海上油田的一种成熟方法，可延长阻垢剂在防止沉积方面的有效性。SISQ 活动的主要问题之一是挤压寿命短，不到 1 年。完整论文中详细介绍的研究提出使用石墨烯纳米片 (GNP) 作为预冲洗系统来延长传统 SISQ 处理的寿命。这种碳基纳米材料可以增强膦酸盐基阻垢剂的吸附。

GNP 作为预冲洗系统

选择了高表面积 GNP 预冲洗系统来调节岩石表面，以克服 SISQ 处理期间缺乏可用于阻垢剂吸附的合适表面的问题。

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Oilfield chemistry

Graphene Nanoplatelets Extend Life of Scale-Inhibitor Squeeze Treatment

This study proposes graphene nanoplatelets as a preflush system to extend the lifetime of a conventional scale-inhibitor squeeze treatment.

TEM image of GNP vs. P-GNP.
Fig. 1—TEM image of GNP vs. P-GNP.
Source: SPE 215228.

Scale-inhibitor squeeze (SISQ) treatment is an established method for offshore fields that allows an extended effectiveness of scale inhibitors in preventing deposition over time. One of the primary issues in SISQ campaigns is the short squeeze lifetime of less than 1 year. The study detailed in the complete paper proposed graphene nanoplatelets (GNP) as a preflush system to extend the lifetime of a conventional SISQ treatment. This carbon-based nanomaterial allowed enhanced adsorption of the phosphonate-based scale inhibitor.

GNP as a Preflush System

A high-surface-area GNP preflush system was chosen to condition the rock surface to overcome the apparent lack of suitable surfaces available for scale-inhibitor adsorption during SISQ treatment.

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