Compositions and methods for sealing formations
Patent 6739414 Issued on May 25, 2004. Estimated Expiration Date: 
April 30, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 30, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsApplicationNo. 10135794 filed on 04/30/2002US Classes:175/72, Prevention of lost circulation or caving166/283, Specific low fluid loss feature for fracturing fluid or cement causes fracture166/292, Using specific materials166/294, Cement or consolidating material is organic or has organic ingredient507/202, Contains intended gaseous phase at entry into wellbore507/212, Polysaccharide is starch or derivative thereof507/213, Polysaccharide is a xanthan (e.g., scleroglucans, etc.)507/269, Contains inorganic component other than water or clay507/925COMPLETION OR WORKOVER FLUIDExaminersPrimary: Suchfield, George A.Attorney, Agent or FirmForeign Patent References
International ClassesC09K 702E21B 33138 E21B 4312 AbstractThe present invention generally relates to compositions of matter and methods of using those compositions. More particularly, and as part of one of the preferred embodiments, the present invention relates to compositions and methods of use of fluids useful for sealing formation fractures and/or inhibiting downhole fluid loss. The present invention is useful as a pill or series of pills that can be formulated and spotted to a particular formation zone.Other References
Field of SearchPrevention of lost circulation or cavingSeparate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking formation Specific low fluid loss feature for fluid attacking formation Specific low fluid loss feature for fracturing fluid or cement causes fracture Using specific materials Cement or consolidating material is organic or has organic ingredient Contains intended gaseous phase at entry into wellbore Organic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, xanthan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons Carbohydrate is starch or derivative thereof Contains inorganic component other than water or clay Contains intended gaseous phase at entry into wellbore Polysaccharide is starch or derivative thereof Polysaccharide is a xanthan (e.g., scleroglucans, etc.) Contains inorganic component other than water or clay COMPLETION OR WORKOVER FLUID |
| ||||||||||||||
