| 摘要 |
<p>A method for fracturing and propping a thick and/or non-homogeneous fracture interval (12) of a subterranean formation which is traversed by a wellbore (11). A workstring (20) is lowered into the wellbore and a fracturing fluid (30) is flowed into one end of the fracture interval annulus (33a), i.e., that portion of the well annulus (33) which lies adjacent the fracture interval, to initiate a fracture. The flow of fracturing fluid is ceased and a slurry (31) containing proppants is flowed into said one end of the fracture interval annulus. During flow of fracturing fluid and slurry into said one end of the annulus, both are delivered through alternate flowpaths (24), to different levels within said fracture interval. Alternate slugs of fracturing fluid and slurry is continued through the same end of the annulus until all of the levels or zones within the fracture interval have been fractured and propped and in some instances, also gravel-packed.</p> |
