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Class Information
Number: 166/292
Name: Wells > Processes > Cementing, plugging or consolidating > Using specific materials
Description: A process using a specifically claimed material in at least one of the steps of the process.










Sub-classes under this class:

Class Number Class Name Patents
166/293 Cement or consolidating material contains inorganic water settable and organic ingredients 697
166/294 Cement or consolidating material is organic or has organic ingredient 544


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
8703657 Inverse emulsion polymers as lost circulation material Apr. 22, 2014
8689869 Method for providing thixotrophy to fluids downhole Apr. 8, 2014
8689894 Method and composition for zonal isolation of a well Apr. 8, 2014
8684081 Zero-leakoff gel Apr. 1, 2014
8672028 Settable compositions comprising interground perlite and hydraulic cement Mar. 18, 2014
8672057 Method for controlling loss of drilling fluid Mar. 18, 2014
8668019 Dissolvable barrier for downhole use and method thereof Mar. 11, 2014
8662173 Plugging thief zones and fractures by in-situ and in-depth crystallization for improving water sweep efficiency of sandstone and carbonate reservoirs Mar. 4, 2014
8657005 Systems and methods for hydraulic barrier formation to improve sweep efficiency in subterranean oil reservoirs Feb. 25, 2014
8622127 Olefin reduction for in situ pyrolysis oil generation Jan. 7, 2014
8607895 Drilling fluid additive for reducing lost circulation in a drilling operation Dec. 17, 2013
8602099 Process for the production of mineral oil Dec. 10, 2013
8596356 Method of producing synthesis gas by the underground gasification of coal from a coal seam Dec. 3, 2013
8596363 Oil and gas well cement systems using elemental sulfur Dec. 3, 2013
8598091 Use of seeds as a cement set retarder Dec. 3, 2013
8585328 Underground filling and sealing method Nov. 19, 2013
8584756 Methods of isolating annular areas formed by multiple casing strings in a well Nov. 19, 2013
8567499 Gelled liquid hydrocarbon treatment fluids and their associated methods of use Oct. 29, 2013
8555967 Methods and systems for evaluating a boundary between a consolidating spacer fluid and a cement composition Oct. 15, 2013
8550162 Compositions and methods for well cementing Oct. 8, 2013
8551244 Self adaptive cement systems Oct. 8, 2013
8544543 Consolidating spacer fluids and methods of use Oct. 1, 2013
8536101 Expoxy acid based biodegradable set retarder for a cement composition Sep. 17, 2013
8530393 Methods to characterize fracture plugging efficiency for drilling fluids Sep. 10, 2013
8522872 In situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals Sep. 3, 2013
8522873 Spacer fluids containing cement kiln dust and methods of use Sep. 3, 2013
8524638 Method to characterize fracture plugging efficiency for drilling fluids Sep. 3, 2013
8519016 Lightweight foamed fly ash based binders and method Aug. 27, 2013
8517103 Oil or gas treatment fluid containing a chelate or coordination complex that sets Aug. 27, 2013
8517102 Provision of viscous compositions below ground Aug. 27, 2013
8517101 Cementing composition comprising within un-reacted cement Aug. 27, 2013
8505629 Foamed spacer fluids containing cement kiln dust and methods of use Aug. 13, 2013
8505630 Consolidating spacer fluids and methods of use Aug. 13, 2013
8499833 Zero-leakoff emulsified acid Aug. 6, 2013
8499835 Well service compositions for consolidation of particulates in subterranean coal seams Aug. 6, 2013
8492317 Slag compositions and methods of use Jul. 23, 2013
8486868 Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations Jul. 16, 2013
8479817 Method and composition for curing lost circulation Jul. 9, 2013
8481463 Oil-based grouting composition with an insulating material Jul. 9, 2013
8459354 Self-sealing method Jun. 11, 2013
8453733 Method to control driving fluid breakthrough during production of hydrocarbons from a subterranean reservoir Jun. 4, 2013
8443890 Methods of stimulating liquid-sensitive subterranean formations May. 21, 2013
8434553 Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations May. 7, 2013
8430165 Increasing the viscosity of viscoelastic fluids Apr. 30, 2013
8418762 Method of using gelled fluids with defined specific gravity Apr. 16, 2013
8413719 Relative permeability modification Apr. 9, 2013
8408303 Compositions for improving thermal conductivity of cement systems Apr. 2, 2013
8403045 Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations Mar. 26, 2013
8404622 Lost circulation material for oilfield use Mar. 26, 2013
8399387 Settable compositions comprising cement kiln dust and rice husk ash and methods of use Mar. 19, 2013

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