E21B

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Description

EARTH OR ROCK DRILLING (mining, quarrying E21C; making shafts, driving galleries or tunnels E21D); OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

Subclasses

Not Available
Subclass Title
1/00 Percussion drilling (drives used in the borehole E21B 4/00)
1/02 Percussion drilling (drives used in the borehole E21B 4/00) Surface drives for drop hammers, e.g. with a cable
1/04 Percussion drilling (drives used in the borehole E21B 4/00) Surface drives for drop hammers, e.g. with a cable Devices for reversing the movement of the rod or cable at the surface
1/12 Percussion drilling (drives used in the borehole E21B 4/00) with a reciprocating impulse member (E21B 1/02, E21B 1/38 take precedence)
1/14 Percussion drilling (drives used in the borehole E21B 4/00) with a reciprocating impulse member (E21B 1/02, E21B 1/38 take precedence) driven by a rotating mechanism

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Recent Patents

Not Available

Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2020/0024,903 MATRIX BODY PDC DRILL BIT Feb 02, 19 Jan 23, 20 , SEED TECHNOLOGIES CORP., LTD.
2020/0024,921 CORE BARREL HEAD ASSEMBLY WITH AN INTEGRATED SAMPLE ORIENTATION TOOL AND SYSTEM FOR USING SAME Sep 30, 19 Jan 23, 20 , Not available
2020/0024,928 Reducing Erosional Peak Velocity of Fluid Flow Through Sand Screens Jun 05, 19 Jan 23, 20 , Not available
2020/0024,508 METHODS AND TREATMENT FLUIDS FOR MICROFRACTURE CREATION AND MICROPROPPANT DELIVERY IN SUBTERRANEAN FORMATIONS Apr 04, 17 Jan 23, 20 , Not available
2020/0024,942 Wellbore Inflow Detection Based on Distributed Temperature Sensing Jun 27, 19 Jan 23, 20 , Not available
2020/0024,098 WIRELINE SYSTEM AND METHODS OF USING SAME Jul 09, 19 Jan 23, 20 , Not available
2020/0024,915 PROPULSION UNIT FOR WELLBORE TRACTOR TOOL Jul 20, 18 Jan 23, 20 , Not available
2020/0024,503 SURFACTANT ADDITIVE TO INCREASE RESIN PIPE BONDING Dec 07, 18 Jan 23, 20 , Not available
2020/0024,922 TOOL ASSEMBLY WITH A FLUIDIC AGITATOR Sep 27, 19 Jan 23, 20 , Not available
2020/0024,505 MITIGATION OF CONDENSATE BANKING USING SURFACE MODIFICATION Aug 22, 19 Jan 23, 20 , Not available
2020/0024,905 POLYCRYSTALLINE DIAMOND COMPACT, AND RELATED METHODS AND APPLICATIONS Aug 26, 19 Jan 23, 20 , Not available
2020/0024,498 METHODS AND SYSTEMS FOR USING ELASTOCALORIC MATERIALS IN SUBTERRANEAN FORMATIONS Oct 31, 16 Jan 23, 20 , Not available
2020/0024,931 CONTROL SYSTEM FOR HYDROCARBON RECOVERY TOOLS Aug 05, 19 Jan 23, 20 , Not available
2020/0024,506 BI-MODAL ANALYSIS AGENT Jul 18, 19 Jan 23, 20 , UTI LIMITED PARTNERSHIP
2020/0024,939 USE OF NATURAL LOW-LEVEL RADIOACTIVITY OF RAW MATERIALS TO EVALUATE GRAVEL PACK AND CEMENT PLACEMENT IN WELLS Jul 08, 19 Jan 23, 20 , Not available
2020/0024,937 METHOD OF REFRACTURING IN A HORIZONTAL WELL Feb 08, 17 Jan 23, 20 , Not available
2020/0024,919 APPARATUS AND METHODS FOR HANDLING DRILL STRING Jul 17, 18 Jan 23, 20 , Not available
2020/0024,938 ENHANCED WELLBORE DESIGN AND METHODS Jan 05, 18 Jan 23, 20 , Not available
2020/0025,719 SLUG FLOW MONITORING AND GAS MEASUREMENT Sep 11, 19 Jan 23, 20 , Saudi Arabian Oil Company
2020/0024,509 PROPPANTS FOR SEQUESTERING A TARGET SPECIES Jun 21, 19 Jan 23, 20 , Not available

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Patents Issued To Date - By Filing Year

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