135317 ⎘
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Wear protectors; Centralising devices, e.g. stabilisers; Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations
CONTROLLING LOGGING TOOL ORIENTATION IN A WELLBORE
#2LOCATOR FOR SURVEY APPARATUS
#3Centralizer having internal stop collar
#4PRECISION-CUT CASING TUBULAR FOR CENTRALIZER ASSEMBLY
#5Snake-skin-inspired in-hole bow spring centralizer
#6Centralizer with opposing hollow spring structure
#7Pressure modulating multi-diameter thrust cup arrangement and positioning system
#8Variable stiffness centralizer
#9Methods of pre-testing expansion charge for selectively expanding a wall of a tubular, and methods of selectively expanding walls of nested tubulars
#10MULTI-DIAMETER THRUST CUPS
#11Artificial lift systems utilizing high speed centralizers
#12High speed rotor dynamics centralizer
#13Multi-diameter thrust cups
#14Precision-cut casing tubular for centralizer assembly
#15Heat sources and alloys for use in down-hole applications
#16Centraliser
#17CENTRALIZER HAVING ATMOSPHERIC CHAMBER FOR EXPANSION IN RESPONSE TO HYDROSTATIC PRESSURE
#18DEPLOYABLE CASING CENTRALISER WITH LATCH FOR BOW SPRINGS
#19Centralizer with dissolvable retaining members
#20Downhole apparatus and associated methods
#21Method and apparatus for wellbore centralization
#22Centralizer
#23Composite bow centralizer
#24Method for manufacturing a turned-down centralizer sub assembly
#25Apparatus for use in well abandonment
#26CENTRALISER
#27Heat sources and alloys for use in down-hole applications
#28Spring system for high workloads
#29Easy-start centralizer with asymmetrical bow springs
#30Tilt-based view scrolling with baseline update for proportional and dynamic modes
#31Stop collar attachment
#32Self retracting wall contact well logging sensor
#33Deployable bow spring centralizer
#34Low profile stop collar
#35APPARATUS FOR AND METHOD OF SECURING A CENTRALIZER TO A TUBULAR
#36A CENTRALIZER WITH LOW FRICTION BUTTONS AND METHOD OF FABRICATION THEREOF
#37THIN BOW-STRING CENTRALIZER FOR WELLS
#38Friction reducing wear band and method of coupling a wear band to a tubular
#39Centralizer device and method for deployment of a bore hole component in a borehole
#40Composite centralizer blade
#41Radially and axially-compressed ceramic sealing method and apparatus
#42Apparatus for securing a centralizer to a tubular
#43Deployable bow spring centralizer
#44Centraliser
#45Composite bow centralizer
#46Devices and methods for forming bow springs of one-piece centralizers
#47Centralizer with collaborative spring force
#48Tilt-based view scrolling with baseline update for proportional and dynamic modes
#49Centraliser
#50Turned-down centralizer sub assembly
#51Apparatus for use in well abandonment
#52Centralizers for centralizing well casings
#53Centralizer and associated devices
#54Method and device for multi-sensor electromagnetic defectoscopy of well casings
#55Centralizer and associated devices
#56Shifting tool collet with rolling component
#57Non-marring shifting tool collet
#58Shifting tool collet with axial ridge and edge relief
#59Method for making pipe centralizer having low-friction coating
#60Centralizer
#61Well centralizer
#62Centralizer with collaborative spring force
#63System and method of using heat sources and alloys in down-hole applications
#64Easy-start centralizer with asymetrical bow springs
#65Apparatus for use in well abandonment
#66Wireless downhole tool positioning control
#67Centraliser
#68Centralizer for expandable liner
#69Centralizer preconditioning and testing apparatus and method
#70Wrap-around stop collar and method of forming
#71Multi-vane centralizer and method of forming
#72Centralizer
#73Motion-based view scrolling with proportional and dynamic modes
#74Centralizers for centralizing well casings
#75Centralizer assembly and method for attaching to a tubular
#76Friction reducing wear band and method of coupling a wear band to a tubular
#77Composite bow centralizer
#78Composite bow centralizer
#79Pipe Centralizer Having Low-Friction Coating
#80Low-clearance centralizer
#81Rolled tubular centralizer
#82Centraliser
#83Tubing centralizer
#84Wireless downhole tool positioning control
#85Pull through centralizer
#86Pull through centralizer
#87Centraliser
#88Well centralizer
#89Composite centralizer with expandable elements
#90Clamp
#91Composite limit collar
#92Performance centralizer for close tolerance applications
#93Expandable centralizer for expandable pipe string
#94Composite bow centralizer
#95Composite bow centralizer
#96Downhole apparatus with a swellable support structure
#97Integral pull-through centralizer
#98CENTRALISING TOOL AND METHOD OF FORMING
#99Expandable centralizer for expandable pipe string
#100Downhole apparatus with a swellable support structure
#101Low clearance centralizer
#102Centraliser
#103METHOD OF AND KIT FOR INSTALLING A CENTRALIZER ON A PIPE SEGMENT
#104Downhole device
#105Reduced Drag Centralizer
#106Friction reducing wear band and method of coupling a wear band to a tubular
#107Casing centralizers having flexible bow springs
#108Instrument centralizer configurable for use with cement evaluation well logging instruments
#109Tubing centralizer
#110Modular Low-Clearance Centralizer and Method of Making Modular Low-Clearance Centralizer
#111Downhole apparatus with a swellable support structure
#112Downhole apparatus with a swellable seal
#113Downhole apparatus with a swellable connector
#114Downhole apparatus with a swellable centraliser
#115Stop collar friction clamping device
#116Wellbore pipe centralizer having increased restoring force and self-sealing capability
#117Caisson system
#118Apparatus for and method of deploying a centralizer installed on an expandable casing string
#119Methods and apparatus for well construction
#120Expandable centralizer for expandable pipe string
#121Low clearance centralizer and method of making centralizer
#122Field-Assemblable Bow-Spring Casing Centralizer and Method of Making A Centralizer
#123Cleaning apparatus
#124Passive centralizer
#125Centralizer tool, a centralizing method and a method of making a centralizer tool
#126EPOXY SECURED STOP COLLAR FOR CENTRALIZER
#127Methods and apparatus for actuating a downhole tool
#128Expandable wellbore assembly
#129Auto entry guide
#130Dual diameter and rotating centralizer/sub and method
#131Decentralizer tool for use with wireline logging operations
#132Device for centering a sensor assembly in a bore
#133Deployable centralizers