초록 ▼

Low density composite particles made of a binder and filler material are provided for use in subterranean formations. The filler includes low density filler and optionally other filler. The binder includes a polymer and optionally cement. The particles may be employed as proppants useful to prop ope

Low density composite particles made of a binder and filler material are provided for use in subterranean formations. The filler includes low density filler and optionally other filler. The binder includes a polymer and optionally cement. The particles may be employed as proppants useful to prop open subterranean formation fractures. The particles are also useful for gravel packing in subterranean formations, water filtration and artificial turf for sports fields. Methods of making the composite particles are also disclosed.

대표청구항 ▼

Low density composite particles made of a binder and filler material are provided for use in subterranean formations. The filler includes low density filler and optionally other filler. The binder includes a polymer and optionally cement. The particles may be employed as proppants useful to prop ope

Low density composite particles made of a binder and filler material are provided for use in subterranean formations. The filler includes low density filler and optionally other filler. The binder includes a polymer and optionally cement. The particles may be employed as proppants useful to prop open subterranean formation fractures. The particles are also useful for gravel packing in subterranean formations, water filtration and artificial turf for sports fields. Methods of making the composite particles are also disclosed. r et al.; US-4942544, 19900700, McIntosh et al.; US-4956295, 19900900, Sudoma; US-4968607, 19901100, Dower et al.; US-4984158, 19910100, Hillsman; US-4995385, 19910200, Valentini et al.; US-5011678, 19910400, Wang et al.; US-5017372, 19910500, Hastings; US-5026566, 19910600, Roser; US-5027806, 19910700, Zoltan et al.; US-5033463, 19910700, Cocozza; US-5035237, 19910700, Newell et al.; US-5048514, 19910900, Ramella; US-5049388, 19910900, Knight et al.; US-5081228, 19920100, Dower et al.; US-5093316, 19920300, Lezdey et al.; US-5098893, 19920300, Franks et al.; US-5099833, 19920300, Michaels; US-5113855, 19920500, Newhouse; US-5124162, 19920600, Boskovic et al.; US-5139016, 19920800, Wager, 128/200.14; US-5149543, 19920900, Cohen et al.; US-5149653, 19920900, Roser; US-5161524, 19921100, Evans; US-5180812, 19930100, Dower et al.; US-5186164, 19930200, Raghuprasad; US-5192528, 19930300, Radhakrishnan, 424/045; US-5200399, 19930400, Wettlaufer et al.; US-5204108, 19930400, Illum; US-5206200, 19930400, Bush et al.; US-5230884, 19930700, Evan et al.; US-5253468, 19931000, Raymond; US-5254330, 19931000, Garderton et al., 424/046; US-5260306, 19931100, Boardman et al., 514/291; US-5290765, 19940300, Wettlaufer et al.; US-5295479, 19940300, Lankinen; US-5302581, 19940400, Sarin et al.; US-5309900, 19940500, Knoch et al.; US-5320094, 19940600, Laube et al.; US-5320714, 19940600, Brendel; US-5331953, 19940700, Andersson et al.; US-5354562, 19941000, Platz et al., 424/046; US-5354934, 19941000, Pitt et al., 514/008; US-5364838, 19941100, Rubsamen; US-537