| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 05/01/2014 | US20140118157 Communication Using a Spacer Fluid |
| 05/01/2014 | US20140116726 Downhole Sensor and Method of Coupling Same to A Borehole Wall |
| 05/01/2014 | US20140116684 Coiled Tubing Packer System |
| 04/30/2014 | EP2725186A1 Sheath for incorporating an optical fibre in a flexible pipe |
| 04/30/2014 | EP2723985A2 Downhole signalling systems and methods |
| 04/30/2014 | EP2723984A2 On-site real time detection of tracers |
| 04/30/2014 | EP2723983A1 Horizontal directional drilling system including sonde position detection using global positioning systems |
| 04/30/2014 | EP2723982A2 Adaptive pump control for positive displacement pump failure modes |
| 04/30/2014 | EP2723981A1 Device and method for measuring torque and rotation |
| 04/30/2014 | EP2723980A2 Systems and methods for determining the moments and forces of two concentric pipes within a wellbore |
| 04/30/2014 | EP2723979A2 Power system for high temperature applications with rechargeable energy storage |
| 04/30/2014 | EP2723971A2 Tool and method for locking and releasing a plug |
| 04/30/2014 | EP2723970A2 Tubular device with radiofrequency communication for well head |
| 04/30/2014 | EP2723963A1 Positioning method for a drilling head |
| 04/30/2014 | EP2723827A1 Tracer fluids with a memory effect for the study of an oil deposit |
| 04/30/2014 | CN203570306U Composite emitting short joint of acoustic logging instrument |
| 04/30/2014 | CN203570305U Combined type electromagnetic wave transmission measurement-while-drilling device |
| 04/30/2014 | CN203570304U Rotating magnetic field ranging guiding simulation test stand in SAGD (steam assisted gravity drainage) technology |
| 04/30/2014 | CN203570303U Rock core geologic body occurrence condition calibration instrument for inclined shaft |
| 04/30/2014 | CN203570302U Device for detecting temperature of front circuit board of comprehensive logging instrument |
| 04/30/2014 | CN203570301U Optionally bent weighing rod |
| 04/30/2014 | CN203570300U Angle indicator for coal mine drilling jig |
| 04/30/2014 | CN203570299U Differential pressure flow meter |
| 04/30/2014 | CN203570298U Cable head flexible weighing rod for annular space logging |
| 04/30/2014 | CN203570297U Well testing test flexible weighted lever |
| 04/30/2014 | CN203570260U Shaft device for simulating cementing |
| 04/30/2014 | CN203570219U Quick pressure test female joint |
| 04/30/2014 | CN103758510A Current signal emission source down-hole three-electrode system |
| 04/30/2014 | CN103758509A Non-contact electromagnetic coupling digital differential communicating device suitable for well drilling rod |
| 04/30/2014 | CN103758508A Down hole drilling depth detecting instrument |
| 04/30/2014 | CN103758507A Signal transmission structure and method of drill pipe |
| 04/30/2014 | CN103758506A Flowmeter for single well flow of pumping unit |
| 04/30/2014 | CN103758455A Drilling method and device using deflecting tools |
| 04/30/2014 | CN102505934B Method for detecting throughness of filling drill hole |
| 04/30/2014 | CN102287184B Micro mud floating electronic pressure gauge, working method thereof, and pressure measurement device |
| 04/30/2014 | CN102287180B Self-positioning underground flow metering and adjusting instrument |
| 04/30/2014 | CN101985876B 磁源发生器 Magnetic source generator |
| 04/30/2014 | CN101761331B Automatic telemetering and drillhole inclination survey device |
| 04/29/2014 | US8711045 Downhole telemetry system |
| 04/29/2014 | US8711002 Monitoring of undesirable fluid ingress into subsea control modules |
| 04/29/2014 | US8710844 Electronic time stamping apparatus for use with an inground transmitter |
| 04/29/2014 | US8708052 Riser lifecycle management system, computer readable medium and program code |
| 04/29/2014 | US8708041 Method and system for using wireline configurable wellbore instruments with a wired pipe string |
| 04/29/2014 | CA2498602C System for imparting mechanical impulse energy to the ground |
| 04/24/2014 | WO2014062858A1 Subsea processor for underwater drilling operations |
| 04/24/2014 | WO2014062855A1 Communications systems and methods for subsea processors |
| 04/24/2014 | WO2014062818A2 Systems and methods for managing hydrocarbon material producing wellsites using clamp-on flow meters |
| 04/24/2014 | WO2014062593A1 Remote downhole actuation device |
| 04/24/2014 | WO2014062528A1 Method and apparatus for producing sound pulses within bore holes |
| 04/24/2014 | WO2014062325A1 Plunger fall time identification method and usage |
| 04/24/2014 | WO2014062298A2 Downhole time domain reflectometry with optical components |
| 04/24/2014 | WO2014062066A1 Tracer particle for monitoring processes in at least one fluid phase and methods and uses thereof |
| 04/24/2014 | WO2014036245A3 Analysis of enhanced oil recovery (eor) processes for naturally-fractured reservoirs |
| 04/24/2014 | WO2014027322A3 Enhanced materials investigation |
| 04/24/2014 | US20140112100 Air hammer optimization using acoustic telemetry |
| 04/24/2014 | US20140111349 Methods and apparatus for evaluating downhole conditions with rfid mems sensors |
| 04/24/2014 | US20140110170 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 04/24/2014 | US20140110169 Method and system for identifying a self-sustained influx of formation fluids into a wellbore |
| 04/24/2014 | US20140110124 Wellbore leak detection systems and methods of using the same |
| 04/24/2014 | US20140110106 System and Method for Downhole Communication |
| 04/24/2014 | US20140110105 Systems and Methods of Monitoring a Multiphase Fluid |
| 04/24/2014 | DE102012219100A1 System for measuring size of space e.g. sewer channel, has evaluation unit that determines topographic characteristics of channel, based on photographs of track of channel obtained from cameras |
| 04/23/2014 | EP2721253A2 Control system for downhole operations |
| 04/23/2014 | EP2721252A1 System, method, and computer program for predicting borehole geometry |
| 04/23/2014 | CN203559900U Oil pipe pressure test device |
| 04/23/2014 | CN203559899U Loading system for high pressure water-pressure test in borehole |
| 04/23/2014 | CN203559898U Logging instrument protective shell |
| 04/23/2014 | CN203559897U Underground hanging-piece corrosion test unit |
| 04/23/2014 | CN203559896U Gas-lift oil production distribution metering device |
| 04/23/2014 | CN203559873U Injection-production allocation metering structure for gas storage |
| 04/23/2014 | CN103748320A Fracturing process to enhance propping agent distribution to maximize connectivity between the formation and the wellbore |
| 04/23/2014 | CN103748319A Apparatus and method for controlling a completion operation |
| 04/23/2014 | CN103748318A Horizontal directional drilling system including sonde position detection using global positioning systems |
| 04/23/2014 | CN103742131A Method for extracting time difference in real time for logging-while-drilling acoustic underground signal acquisition and processing system |
| 04/23/2014 | CN103742130A High permeability band characterization method based on time varying |
| 04/23/2014 | CN103742129A Method for drilling holes on soft coal seam to measure coal seam gas pressure |
| 04/23/2014 | CN103742128A System for testing pressure of capillary tube of coal bed gas |
| 04/23/2014 | CN103742127A Drill-hole television detection determination method for heights of overlying-strata caving zone and diversion fissure zone |
| 04/23/2014 | CN103742126A Storage type stratum fracturing string shift measurement instrument |
| 04/23/2014 | CN103233723B Small-diameter electromagnetic flow comprehensive logging instrument |
| 04/23/2014 | CN102418515B Method for performing shaft orientation survey by using optical plummet |
| 04/22/2014 | US8706463 System and method for completion optimization |
| 04/22/2014 | US8705318 Data aggregation for drilling operations |
| 04/22/2014 | US8704677 Reliable downhole data transmission system |
| 04/22/2014 | US8701762 Method of determination of fluid influx profile and near-wellbore space parameters |
| 04/22/2014 | US8701761 System and method for triggering a downhole tool |
| 04/22/2014 | US8701481 Borehole sensing and clamping systems and methods of using the same |
| 04/22/2014 | US8701480 Downhole pressure and vibration measuring device integrated in a pipe section as a part of a production tubing |
| 04/22/2014 | CA2782897C Control line space out tool |
| 04/17/2014 | WO2014058745A2 System and method for monitoring fracture treatment using optical fiber sensors in monitor wellbores |
| 04/17/2014 | WO2014058425A1 Fracture sensing system and method |
| 04/17/2014 | WO2014058335A1 Method and apparatus for evaluating the cementing quality of a borehole |
| 04/17/2014 | WO2013154420A3 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus |
| 04/17/2014 | WO2013093445A3 Acoustic telemetry |
| 04/17/2014 | US20140107929 Electromagnetic Method For Obtaining Dip Azimuth Angle |
| 04/17/2014 | US20140105760 Sensor assembly for determining fluid properties in a subsurface well |
| 04/17/2014 | US20140104073 Tubular device with radiofrequency communication for well head |
| 04/17/2014 | US20140102806 Tubular component for drill stem capable of being cabled, and method for mounting a cable in said component |
| 04/17/2014 | US20140102794 Core orientation systems and methods |
| 04/17/2014 | US20140102793 System and method for acquiring information during underground drilling operations |