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前言 填砂裂缝的几何尺寸及其导流能力是影响压裂效果的基本因素,二者都与砂子在缝中的分布有密切关系。加砂程序与携砂工艺是控制砂子在缝中分布的主要因素。 虽然在当前的压裂设计中有加砂程序,但在施工中却很少考虑用什么办法才能将砂子放置在预定位置并处于预定状态,以保证到得最大的裂缝支撑面积及最好的导流能力。问题的焦点是采取什么措施与已有的加砂程序相配合以得到最有效的加砂效果。
Preface The geometry of sand-fissured fractures and their diversion ability are the basic factors that affect the fracturing effect. Both of them are closely related to the distribution of sand in the fractures. Sanding process and sand carrying process are the main factors controlling sand distribution in the seam. Although there are gravel programs in current fracturing design, little consideration has been given to how to place the sand in a predetermined position and to be in a predetermined state during construction, so as to ensure the maximum crack support area and the best guide Flow capacity. The focus of the question is what steps to take to complement the existing sand addition process to achieve the most effective sand addition.