The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1999
Filed:
Apr. 06, 1995
Victor Andrew Joyce, Plano, TX (US);
Reinaldo Navarrete, Tulsa, OK (US);
Vernon G Constien, Sperry, OK (US);
Dowell, a division of Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
The invention, in one embodiment, relates to a fluid loss control additive or composition comprising a granular starch composition and fine particulate mica, in specified proportions. The invention further comprises a fracturing fluid containing a starch composition and mica, in a specified ratio. In yet a third embodiment, the invention comprises a method of fracturing a subterranean formation penetrated by a borehole, comprising injecting into the borehole and into contact with the formation, at a rate and pressure sufficient to fracture the formation, a fracturing fluid containing starch and mica, in specified ratios, and in an amount sufficient to provide fluid loss control. In an additional embodiment, a fluid loss additive is used in a low viscosity preliminary sacrificial conditioning stage solution which will condition high permeability formations to provide a substantially uniform, low permeability fracture face leading to longer fracture lengths and more predictable design and execution of fracturing treatments in high permeability formations.