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Class Information
Number: 175/65
Name: Boring or penetrating the earth > Processes > Boring with specific fluid
Description: Processes comprising providing a liquid or gaseous material in a borehole to facilitate the making of such borehole.










Sub-classes under this class:

Class Number Class Name Patents
175/68 Anti-agglomeration treatment of gaseous drilling fluid 6
175/67 Boring by fluid erosion 278
175/69 Combined liquid and gaseous fluid 93
175/71 Gaseous fluid or under gas pressure 81
175/70 Plural distinguishable liquids 38
175/72 Prevention of lost circulation or caving 315
175/66 Treating spent or used fluid above ground 391


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8703658 Drilling fluid and methods Apr. 22, 2014
8672057 Method for controlling loss of drilling fluid Mar. 18, 2014
8627889 Drilling and fracturing fluid Jan. 14, 2014
8623790 Method of drilling a subterranean well with crosslinked polyacrylic acid Jan. 7, 2014
8607895 Drilling fluid additive for reducing lost circulation in a drilling operation Dec. 17, 2013
8592349 Method to prevent salt crystal agglomeration and settling in a drilling fluid Nov. 26, 2013
8569213 Drilling fluids having reduced sag potential and related methods Oct. 29, 2013
8563483 Mineral-based drilling fluid and drilling method Oct. 22, 2013
8544565 Lost circulation control fluids for naturally fractured carbonate formations Oct. 1, 2013
8541346 Methods of degrading subterranean filter cakes Sep. 24, 2013
8479817 Method and composition for curing lost circulation Jul. 9, 2013
8469118 Drilling fluid containing carbon nanotubes Jun. 25, 2013
8453735 Method and biodegradable water based thinner composition for drilling subterranean boreholes with aqueous based drilling fluid Jun. 4, 2013
8424619 Drilling fluid Apr. 23, 2013
8413745 Water-based mud lubricant using fatty acid polyamine salts and fatty acid esters Apr. 9, 2013
8393411 Method for controlling loss of drilling fluid Mar. 12, 2013
8357639 Nanoemulsions Jan. 22, 2013
8347983 Drilling with a high pressure rotating control device Jan. 8, 2013
8293686 Emulsified polymer drilling fluid and methods of preparation Oct. 23, 2012
8288324 Wellbore fluids comprising poly(trimethylene ether) glycol polymers Oct. 16, 2012
8281859 Methods and compositions comprising cement kiln dust having an altered particle size Oct. 9, 2012
8272455 Methods for forming wellbores in heated formations Sep. 25, 2012
8252728 Drilling fluids comprising hydroxylated polymers Aug. 28, 2012
8235119 Drilling fluid and method for reducing lost circulation Aug. 7, 2012
8227382 Breaker fluids and methods of using the same Jul. 24, 2012
8220565 Treatment of subterranean formations Jul. 17, 2012
8193124 Emulsifier free oil-based wellbore fluid Jun. 5, 2012
8183181 Oil field treatment fluids comprising zwitterionic betaine-group-containing polymers May. 22, 2012
8176981 Fluorinated surfactants and methods of using the same May. 15, 2012
8163675 Emulsifier based on polyamines and fatty acid/maleic anhydride Apr. 24, 2012
8148303 Surfactant additives used to retain producibility while drilling Apr. 3, 2012
8141661 Enhanced oil-based foam drilling fluid compositions and method for making and using same Mar. 27, 2012
8141660 Excavator apparatus for underground excavation Mar. 27, 2012
8138124 Drilling fluid with circulation loss reducing additive package Mar. 20, 2012
8122959 Methods and materials for zonal isolation Feb. 28, 2012
8105984 Reduced abrasion drilling fluid Jan. 31, 2012
8091653 Methods of formulating weighting agents using processed waste waters Jan. 10, 2012
8071510 Method of increasing lubricity of brine-based drilling fluids and completion brines Dec. 6, 2011
8071509 Glycerol based drilling fluids Dec. 6, 2011
8053394 Drilling fluids with redispersible polymer powders Nov. 8, 2011
8047305 Vacuum feed supply system for drilling fluid additives Nov. 1, 2011
8048827 Kinetic gas hydrate inhibitors in completion fluids Nov. 1, 2011
8043996 Method for treatment of underground reservoirs Oct. 25, 2011
8026198 Shale hydration inhibition agent(s) and method of use Sep. 27, 2011
8006761 Wellbore fluid comprising a base fluid and a particulate bridging agent Aug. 30, 2011
8002049 Well treating method to prevent or cure lost-circulation Aug. 23, 2011
7998905 Drilling fluid containing chlorosulfonated alpha-olefin copolymers Aug. 16, 2011
7992653 Foamed fluid additive for underbalance drilling Aug. 9, 2011
7992654 Dual gradient drilling method and apparatus with an adjustable centrifuge Aug. 9, 2011
7985717 Methods of using drilling fluids containing biodegradable organophilic clay Jul. 26, 2011

1 2 3 4 5 6 7 8










 
 
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