| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 07/07/2010 | CN201521290U Mechanical hydraulic inclinometer while drilling |
| 07/07/2010 | CN201521289U Signal recognition device for realizing repeated downhole function of oilfield downhole tool |
| 07/07/2010 | CN201521288U Simple integrated logging instrument |
| 07/07/2010 | CN201521287U Multi-well type oil gas metering device |
| 07/07/2010 | CN201521286U Anti-dredging resistance-accounting concentric switch of water injection well |
| 07/07/2010 | CN201521273U Encountering resistance drifting device adopting acoustic variable density logging method |
| 07/07/2010 | CN101769150A Downhole ejector rod with quick-change connectors for sound wave (television) logging instrument |
| 07/07/2010 | CN101769149A CO2 injection profile well logging method |
| 07/07/2010 | CN101769143A Skid-mounted device for switching and monitoring process flows of water dissolving method mining |
| 07/06/2010 | US7751677 Optical fiber feedthrough using axial seals for bi-directional sealing |
| 07/06/2010 | US7751038 Apparatus and method for obtaining images of a borehole |
| 07/06/2010 | US7750808 Data retrieval tags |
| 07/06/2010 | US7748466 Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus |
| 07/06/2010 | US7748450 Gas wellhead extraction system and method |
| 07/06/2010 | US7748449 Tubingless electrical submersible pump installation |
| 07/06/2010 | US7748448 Wellhead plunger inspection arrangement |
| 07/06/2010 | CA2604810C Method for selecting and using drilling operating parameters for a drilling unit |
| 07/01/2010 | WO2010075264A2 Apparatus and methods for gas volume retained coring |
| 07/01/2010 | WO2010074678A2 Azimuthal at-bit resistivity and geosteering methods and systems |
| 07/01/2010 | WO2010036832A3 Downhole vibration monitoring for reaming tools |
| 07/01/2010 | US20100169052 Apparatus And Method For High Resolution Measurements For Downhole Tools |
| 07/01/2010 | US20100165790 Method for determination of the oil formation's water-flooding area radius in the wellbore zone |
| 07/01/2010 | US20100165789 Method for determination of the oil formation water-flooding area pattern and size in the wellbore zone |
| 07/01/2010 | US20100164748 Method, System, and Apparatus of Downhole Time Interlaced Communications |
| 07/01/2010 | US20100163242 "Removing Air Wave Noise From Electromagnetic Survey Data" |
| 07/01/2010 | US20100163235 Efficient single trip gravel pack service tool |
| 07/01/2010 | US20100163225 System, Method, and Apparatus for Post-Fracture Treatment |
| 07/01/2010 | US20100163224 Downhole Tool Delivery System |
| 07/01/2010 | US20100163223 Method for determining reservoir properties in a flowing well |
| 07/01/2010 | CA2747806A1 Apparatus and methods for gas volume retained coring |
| 06/30/2010 | CN201517427U Wireless transmission sludge liquid level alarm device |
| 06/30/2010 | CN201517417U Centralizer for wireless drilling inclinometer |
| 06/30/2010 | CN201517416U Auxiliary device for diagram test |
| 06/30/2010 | CN201517415U Mobile single well metering device with jack |
| 06/30/2010 | CN201517374U Gas production well completion column jacket |
| 06/30/2010 | CN201517369U Multi-angle horizontal branch well natural gas extraction simulator |
| 06/30/2010 | CN101765716A Well jet device |
| 06/30/2010 | CN101765698A System and method for sensing pressure using an inductive element |
| 06/30/2010 | CN101765697A Tool face sensor method |
| 06/30/2010 | CN101761335A Measurement method capable of effectively discriminating underground slurry state |
| 06/30/2010 | CN101761334A Logging telemetry communication device |
| 06/30/2010 | CN101761333A Multi-functional true triaxial stress cinder heart clamp holder |
| 06/30/2010 | CN101761332A Up-running-proof pipe string sealing check device |
| 06/30/2010 | CN101761331A Automatic telemetering and drillhole inclination survey device |
| 06/30/2010 | CN101761330A Ultrasonic logging system using self-orienting device of ultrasonic logging instrument |
| 06/30/2010 | CN101761329A Waterproof sealing structure of mine electronic instrument |
| 06/30/2010 | CN101761328A Stratum geology interface instrument drilling induction recognition system |
| 06/30/2010 | CN101761327A Gas metering-separating device |
| 06/29/2010 | US7747388 Systems and methods for acquiring data in thermal recovery oil wells |
| 06/29/2010 | US7743854 Well jet device and the operating method thereof |
| 06/29/2010 | US7743848 Boring tool tracking fundamentally based on drill string length, pitch, and roll |
| 06/29/2010 | US7743654 System, method and apparatus for petrophysical and geophysical measurements at the drilling bit |
| 06/29/2010 | CA2406306C Apparatus to provide pressure pulsations to cement slurry in wells |
| 06/24/2010 | WO2010071626A1 Method and system of determining a value indicative of gas saturation of a formation |
| 06/24/2010 | WO2010070404A1 Microfluidic methods and apparatus to perform in situ chemical detection |
| 06/24/2010 | WO2010070361A1 Method and apparatus for identifying parts used in the construction and maintenance of an oil or gas well |
| 06/24/2010 | WO2010069662A1 Improvement in enhanced oil recovery by polymer without supplementary equipment or product |
| 06/24/2010 | WO2010069623A1 Transmitter and receiver synchronization for wireless telemetry systems |
| 06/24/2010 | WO2010027839A3 Drill bit with weight and torque sensors |
| 06/24/2010 | WO2010022014A3 Processing of azimuthal resistivity data in a resistivity gradient |
| 06/24/2010 | WO2009080284A3 Apparatus for receiving and transmitting signals in electromagnetic telemetry system used in a wellbore |
| 06/24/2010 | WO2009055236A3 Methodology and application of multimodal decomposition of a composite distribution |
| 06/24/2010 | US20100157735 Apparatus for creating pressure pulses in the fluid of a bore hole |
| 06/24/2010 | US20100156403 Method and device for determining the location of the sticking point of a rod made of magnetorestrictive material located in a well |
| 06/24/2010 | US20100155139 Proximity detection system for deep wells |
| 06/24/2010 | US20100155138 Wireline communication system for deep wells |
| 06/24/2010 | US20100155137 Segmented Tubular Body |
| 06/24/2010 | US20100155059 Fiber Optic Slickline and Tools |
| 06/24/2010 | US20100155058 Apparatus and method for monitoring a fracturing operation |
| 06/24/2010 | US20100155057 Apparatus and Method of Monitoring An Alternating Current Component of a Downhole Electrical Imbalance Voltage |
| 06/24/2010 | US20100154530 Rotating flow meter |
| 06/24/2010 | DE102008062754A1 Verfahren und System zur Übertragung von Daten von einem Gerät zu einer Empfangseinheit A method and system for transmitting data from a device to a receiving unit |
| 06/24/2010 | CA2745911A1 Improvement in enhanced oil recovery by polymer without supplementary equipment or product |
| 06/24/2010 | CA2717079A1 Method and system of determining a value indicative of gas saturation of a formation |
| 06/23/2010 | EP2198281A2 Apparatus for determining the concentration of a conductive fluid present in a fluid filled borehole |
| 06/23/2010 | CN201514696U Remote data wire transmission device for oil well measurement |
| 06/23/2010 | CN201513173U Wireless while-drilling pulse generator |
| 06/23/2010 | CN201513172U Layer separation testing device with supporting expansion-sealing electric packers |
| 06/23/2010 | CN201513171U Full-wave train data acquisition and transmission device for CBMT well logging |
| 06/23/2010 | CN201513170U Test string for high-speed pressure controlling and water stabilizing test on horizontal well |
| 06/23/2010 | CN201513169U Depth measuring device for fine blocking and sealing pipe column |
| 06/23/2010 | CN201513168U Device for positioning drilling angles and used for drilling equipment |
| 06/23/2010 | CN201513167U Directional gamma gauging nipple for well drilling |
| 06/23/2010 | CN201513166U Flow switch device while drilling |
| 06/23/2010 | CN201513165U Angular speed measuring and controlling device of wireless while-drilling inclinometer and wireless while-drilling inclinometer |
| 06/23/2010 | CN201513153U Supporting expansion-sealing electric packer |
| 06/23/2010 | CN201513152U Multi-stage pull-type pressure test plug |
| 06/23/2010 | CN1576513B Follow-drilling system and method |
| 06/23/2010 | CN101755106A System and method for an AC powered downhole gauge |
| 06/23/2010 | CN101755104A Orientation sensor for downhole tool |
| 06/23/2010 | CN101749011A Drilling earthquake reference signal collection method and device |
| 06/23/2010 | CN101749010A Testing device of mud pulse generator |
| 06/23/2010 | CN101749009A Method for measuring position of radioactive guide instrument type double sleeve |
| 06/23/2010 | CN101749008A Manufacturing method of insulation bearing shell of oil well logging instrument |
| 06/23/2010 | CN101749007A High-temperature cable direct reading five-parameter logging instrument |
| 06/23/2010 | CN101749006A Tester for producing rate of individual-well for oil extraction |
| 06/22/2010 | US7740064 System, method, and apparatus for downhole submersible pump having fiber optic communications |
| 06/22/2010 | US7740062 System and method for the recovery of hydrocarbons by in-situ combustion |
| 06/22/2010 | CA2688403A1 Fiber optic slickline and tools |
| 06/17/2010 | WO2010068892A2 System and method for downhole voltage generation |