ClassID:

135556

E21B37/06 - page 3 - CPC Classification

Classification description:

Methods or apparatus for cleaning boreholes or wells using chemical means for preventing, limiting or eliminating the deposition of paraffins or like substances

Recent Application in this class:
#601
20130126179
2013-05-23

Sampling skid for subsea wells

#602
20130098623
2013-04-25

Low dosage kinetic hydrate inhibitors for natural gas production systems

#603
20130087328
2013-04-11

Downhole species selective optical fiber sensor systems and methods

#604
20130017347
2013-01-17

SCALE INHIBITING SURFACE TEXTURE

#605
20130014950
2013-01-17

Methods of Well Cleanout, Stimulation and Remediation and Thermal Convertor Assembly for Accomplishing Same

#606
20130000916
2013-01-03

Recyclable cleanout fluids

#607
20120325489
2012-12-27

APPARATUS AND METHODS FOR USE IN ESTABLISHING AND/OR MAINTAINING CONTROLLED FLOW OF HYDROCARBONS DURING SUBSEA OPERATIONS

#608
20120325488
2012-12-27

Chemical-injection management system

#609
20120322693
2012-12-20

SYSTEM AND METHOD FOR CREATING FLOWABLE HYDRATE SLURRIES IN PRODUCTION FLUIDS

#610
20120318367
2012-12-20

VALVING SYSTEM AND METHOD OF INJECTING CHEMICALS

#611
20120273216
2012-11-01

METHODS OF ESTABLISHING AND/OR MAINTAINING FLOW OF HYDROCARBONS DURING SUBSEA OPERATIONS

#612
20120261129
2012-10-18

Electromagnetic wave treatment method and promoter

#613
20120255737
2012-10-11

APPARATUS, SYSTEM, AND METHODS FOR GENERATING A NON-PLUGGING HYDRATE SLURRY

#614
20120234548
2012-09-20

Oil well cleaning compositions

#615
20120217012
2012-08-30

METHOD OF INTRODUCING TREATMENT AGENTS INTO A WELL OR FLOW CONDUIT

#616
20120190592
2012-07-26

Method and system for removing organic deposits

#617
20120160362
2012-06-28

Articles and methods for reducing hydrate adhesion

#618
20120152558
2012-06-21

Heat transport dead leg

#619
20120125599
2012-05-24

Artificial simultaneous production and maintenance system assisted by mechanical pumping with flexible tubing for fluid extraction

#620
20120103456
2012-05-03

ARTICLES AND METHODS FOR REDUCING HYDRATE ADHESION

#621
20120103431
2012-05-03

Pipeline hydrate inhibitor and method of reducing hydrates using the hydrate inhibitor

#622
20120090686
2012-04-19

Deadleg

#623
20120080232
2012-04-05

Emulsion-based cleaning composition for oilfield applications

#624
20120032093
2012-02-09

TAGGED SCALE INHIBITOR COMPOSITIONS AND METHODS OF INHIBITING SCALE

#625
20120012326
2012-01-19

Method of using shaped compressed pellets in treating a well

#626
20120006556
2012-01-12

System and method of providing high pressure fluid injection with metering using low pressure supply lines

#627
20110308625
2011-12-22

System and method for transporting hydrocarbons

#628
20110297392
2011-12-08

Sub-sea chemical injection metering valve

#629
20110253375
2011-10-20

Apparatus and methods for removing mercury from formation effluents

#630
20110240131
2011-10-06

System and method for scale inhibition

#631
20110205079
2011-08-25

FLOW ASSURANCE MONITORING

#632
20110162841
2011-07-07

Continuous Slow Dissolving Chemical Treatment for Oil and Gas Wells

#633
20110158824
2011-06-30

Subsea technique for promoting fluid flow

#634
20110155390
2011-06-30

Apparatus and method for pumping a fluid and an additive from a downhole location into a formation or to another location

#635
20110155384
2011-06-30

Subsea fluid separator

#636
20110146992
2011-06-23

Controllable Chemical Injection For Multiple Zone Completions

#637
20110114323
2011-05-19

Heat generation process for treating oilfield deposits

#638
20110079398
2011-04-07

Multi-point chemical injection system for intelligent completion

#639
20110079392
2011-04-07

Additives to suppress silica scale build-up and methods of use thereof

#640
20110079382
2011-04-07

CHEMICAL INJECTION OF LOWER COMPLETIONS

#641
20110067881
2011-03-24

SYSTEM AND METHOD FOR DELIVERING MATERIAL TO A SUBSEA WELL

#642
20110067876
2011-03-24

Method and apparatus for injecting fluid in a wellbore

#643
20110056694
2011-03-10

Methods For Removing Paraffinic Hydrocarbon Or Bitumen In Oil Producing Or Disposal Wells

#644
20110052328
2011-03-03

APPARATUS AND METHOD FOR PERFORMING AN INTERVENTION IN A RISER

#645
20110036750
2011-02-17

COMPOSITION COMPRISING PEROXYGEN AND SURFACTANT COMPOUNDS AND METHOD OF USING THE SAME

#646
20110024107
2011-02-03

DOWNHOLE FLUID INJECTION DISPERSION DEVICE

#647
20110017446
2011-01-27

Downhole Fluid Injection Dispersion Device

#648
20110011589
2011-01-20

Well service compositions for consolidation of particulates in subterranean coal seams

#649
20110005765
2011-01-13

Sampling skid for subsea wells

#650
20100300684
2010-12-02

Continuous downhole scale monitoring and inhibition system

#651
20100230109
2010-09-16

Methods and apparatus for negating mineral scale buildup in flapper valves

#652
20100193194
2010-08-05

Method for managing hydrates in subsea production line

#653
20100190260
2010-07-29

Method for identifying naphthenates in a hydrocarbon containing liquid

#654
20100167963
2010-07-01

Well treatment

#655
20100139924
2010-06-10

Method and apparatus for removing plugs from subsea equipment through the use of exothermic reacting chemicals

#656
20100108309
2010-05-06

Downhole fluid injection dispersion device

#657
20100101773
2010-04-29

Methods of Cleaning Sand Control Screens and Gravel Packs

#658
20100065275
2010-03-18

Compositions and Methods for Hindering Asphaltene Deposition

#659
20100047022
2010-02-25

SUBSEA FLOW LINE PLUG REMEDIATION

#660
20100043897
2010-02-25

Chemical-injection management system

#661
20100032154
2010-02-11

Scale removal assembly

#662
20100022417
2010-01-28

Composition and Method for the Removal or Control of Paraffin Wax and/or Asphaltine Deposits

#663
20100018712
2010-01-28

Method of transitioning to kinetic hydrate inhibitors in multiple tie-in well systems

#664
20090321082
2009-12-31

Method for protecting hydrocarbon conduits

#665
20090288822
2009-11-26

Mitigation of elemental sulfur deposition during production of hydrocarbon gases

#666
20090266547
2009-10-29

Enzyme enhanced oil recovery (EEOR) for near wellbore treatment of oil and gas with greater than 50% barrel of oil equivalent (BOE) gas production

#667
20090266542
2009-10-29

Capillary injector

#668
20090255686
2009-10-15

Method for providing a temporary barrier in a flow pathway

#669
20090240446
2009-09-24

Flow assurance monitoring

#670
20090235730
2009-09-24

METHOD FOR CLEANING AN OIL FIELD CAPILLARY TUBE

#671
20090194272
2009-08-06

APPARATUS AND METHOD FOR TREATING INJECTION FLUID

#672
20090188665
2009-07-30

Monitoring of downhole parameters and tools utilizing fiber optics

#673
20090133882
2009-05-28

METHOD AND APPARATUS FOR DOWNHOLE ARTIFICIAL LIFT SYSTEM PROTECTION

#674
20090114391
2009-05-07

Method for autonomous control of a chemical injection system for oil and gas wells

#675
20090114247
2009-05-07

Method of treating flow conduits and vessels with foamed composition

#676
20090111715
2009-04-30

Method for remediating flow-restricting hydrate deposits in production systems

#677
20090078408
2009-03-26

Apparatus for providing a temporary degradable barrier in a flow pathway

#678
20090071653
2009-03-19

COMPOSITION AND METHOD FOR CLEANING FORMATION FACES

#679
20090050326
2009-02-26

Device and Method for Cleaning a Compressor

#680
20090050325
2009-02-26

Enzyme enhanced oil recovery (EEOR) for near wellboretreatment of oil and gas with greater than 50% barrel of oil equivalent (BOE) gas production

#681
20090025931
2009-01-29

Wellbore treatment for reducing wax deposits

#682
20080308270
2008-12-18

Method for utilizing pressure variations as an energy source

#683
20080217018
2008-09-11

Method for pickling a work string using dispersed solvent-in-acid fluid design

#684
20080217017
2008-09-11

Method of treating well with foamed composition

#685
20080156481
2008-07-03

Ceramic screen

#686
20080142226
2008-06-19

Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation

#687
20080142224
2008-06-19

Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation

#688
20080099199
2008-05-01

Automatic chemical treatment system with integral flush fluid dispenser and method for using the same

#689
20080069961
2008-03-20

Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup

#690
20080067129
2008-03-20

INHIBITION OF PARAFFIN WALL DEPOSITION IN OIL LINES

#691
20080067108
2008-03-20

Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup

#692
20080066784
2008-03-20

Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup

#693
20080023203
2008-01-31

Apparatus and method for delivering chemicals into an underground well

#694
20070289740
2007-12-20

Apparatus and method for managing supply of additive at wellsites

#695
20070284100
2007-12-13

Scale inhibition method

#696
20070254816
2007-11-01

Method for controlled placement of chemicals and composition useful for practicing same

#697
20070251693
2007-11-01

Compositions and methods for delivering an organic solvent to a downhole portion of a wellbore or to a portion of a pipeline

#698
20070246426
2007-10-25

Water flooding method

#699
20070227737
2007-10-04

Method and apparatus for downhole artificial lift system protection

#700
20070187095
2007-08-16

Single trip horizontal gravel pack and stimulation system and method

#701
20070187090
2007-08-16

Methods of cleaning sand control screens and gravel packs

#702
20070118303
2007-05-24

Flow assurance monitoring

#703
20070056738
2007-03-15

Stimulation and injection system

#704
20070039739
2007-02-22

Well chemical treatment utilizing plunger lift delivery system with chemically improved plunger seal

#705
20070007004
2007-01-11

Composition and method to enhance recovery from oil wells

#706
20060272809
2006-12-07

Wellbores utilizing fiber optic-based sensors and operating devices

#707
20060162927
2006-07-27

Single trip horizontal gravel pack and stimulation system and method

#708
20060102355
2006-05-18

Automatic chemical treatment system with integral flush fluid dispenser

#709
20060021750
2006-02-02

Method and system for injecting a treatment fluid into a well

#710
20060011345
2006-01-19

Method and apparatus for downhole artificial lift system protection

#711
20050269097
2005-12-08

System and method for the mitigation of paraffin wax deposition from crude oil by using ultrasonic waves

#712
20050217855
2005-10-06

Method and a device for removing a hydrate plug

#713
20050166961
2005-08-04

Closed loop additive injection and monitoring system for oilfield operations

#714
20050150658
2005-07-14

Method and apparatus for enhancing oil and gas flow in a well

#715
20050139356
2005-06-30

Method for enhancing the retention efficiency of treatment chemicals in subterranean formations

#716
20050139138
2005-06-30

Flow assurance monitoring

#717
20050106738
2005-05-19

Method for storing and transporting crude oil

#718
20050092363
2005-05-05

Method for providing a temporary barrier in a flow pathway

#719
20050072570
2005-04-07

Contamination-resistant sand control apparatus and method for preventing contamination of sand control devices

#720
20050061503
2005-03-24

Method for cleaning gravel packs

#721
20050056423
2005-03-17

Methods of removing filter cake from well producing zones

#722
20050034856
2005-02-17

Microbial growth inhibiting material and method of forming

#723
20050034855
2005-02-17

Well having inhibited microbial growth

#724
20050022994
2005-02-03

Well chemical treatment utilizing plunger lift delivery system

#725
20050012036
2005-01-20

Providing a light cell in a wellbore

#726
19204000
2026-03-31

Amphoteric amphiphiles for shale swelling inhibition in oil and gas reservoirs

#727
19094336
2026-01-06

Methods and systems for improving extraction of petrochemicals from petrochemical wells

#728
18913243
2026-01-06

Scale treatment in geothermal or extremely high temperature wells

#729
18815558
2025-08-19

Well rehabilitation method

#730
18812290
2025-12-16

Scale control in oilfield produced waters

#731
18751645
2025-12-23

Dual-acting delayed filtercake breaker fluid

#732
18611712
2025-04-29

Assessing and remediating well clogging from mobile particles, systems, apparatuses, and methods

#733
18545684
2025-03-25

Downhole wash tool with a speed limiting brake

#734
18540786
2025-05-27

Downhole apparatus with cavity for housing chemicals

#735
18365553
2024-04-16

Steam generation system with subcooled water spray for wellbore steam injection

#736
18296281
2024-08-20

Sized bridging agents, low density pill and fluid compositions comprising said agents, and methods of controlling fluid loss and formation damage using said compositions

#737
18072231
2023-08-22

Treatment composition including a polylactic acid for a well and method relating thereto

#738
18069333
2024-05-28

Eliminating sticky materials accumulation on production logging tools

#739
17719442
2023-04-11

Method for enhancing oil recovery from groups of wells

#740
17555381
2023-05-23

System for enhanced oil recovery with solvent recycling using liquid phase propane and butane

#741
17553303
2023-02-21

Acid precursors for enhanced inhibitor placement in scale squeeze treatments

#742
17530170
2023-03-14

Laser and chemical system and methods for well stimulation and scale removal

#743
17399916
2023-08-29

Water well rehabilitation system

#744
17354813
2023-04-04

Well-fouling abatement system and method for wells

#745
16570167
2020-07-21

Thermochemical method for removing organic and inorganic deposits from a wellbore

#746
14473113
2016-01-19

Non-coiled tubing well clean-up

#747
13949145
2015-08-04

Method for chemically treating hydrocarbon fluid in a downhole wellbore

#748
13949142
2015-08-04

Downhole chemical treatment assembly for use in a downhole wellbore