books.google.co.jp - Many aspects of hydraulic proppant fracturing have changed since its innovation in 1947. The main significance of this book is its combination of technical and economical aspects to provide an integrated overview of the various applications of proppants in hydraulic fracturing, and gravel in sand control....http://books.google.co.jp/books/about/Hydraulic_Proppant_Fracturing_and_Gravel.html?hl=ja&id=FyGcOI42oBMC&utm_source=gb-gplus-shareHydraulic Proppant Fracturing and Gravel Packing
