Patents for E21B 47 - Survey of boreholes or wells (31,352)
12/2011
12/01/2011WO2011146987A1 Translating electrical connection
12/01/2011WO2011146986A1 Down hole surveying tool
12/01/2011WO2011100509A3 Passive micro-vessel and sensor
12/01/2011WO2011097445A4 Spoolable signal conduction and connection line and method
12/01/2011US20110295509 Wellbore fluid testing apparatus and methods
12/01/2011US20110291854 Obtaining data from an underwater component
12/01/2011US20110290494 Method for circulating a fluid entry out of a subsurface wellbore without shutting in the wellbore
12/01/2011US20110290480 Surface detection of failed open-hole packers using tubing with external tracer coatings
12/01/2011US20110290479 System and method for enhancing oil recovery from a subterranean reservoir
12/01/2011US20110290478 Method For Predicting Fluid Flow
12/01/2011US20110290477 Method for monitoring deformation of well equipment
12/01/2011US20110290326 Flow control device and flow control method
12/01/2011US20110290012 Method and apparatus for fluid loss measurements of wellbore fluids
12/01/2011CA2800402A1 Processing geophysical data
12/01/2011CA2800356A1 Sensor device for a down hole surveying tool
12/01/2011CA2800355A1 Down hole surveying tool
12/01/2011CA2799618A1 Assembly and method for multi-zone fracture stimulation of a reservoir using autonomous tubular units
11/2011
11/30/2011EP2390461A1 Wellbore surveillance system
11/30/2011EP2389498A1 Method and apparatus for in-situ wellbore measurements
11/30/2011CN202055820U Mechanical type automatic gas-water separating and pressure measuring device
11/30/2011CN202055819U 一种旋挖钻机及测深系统 One kind of rotary drilling rig and sounding system
11/30/2011CN202055818U 一种基于3g通信技术的石油测井数据传输系统 Oil well logging data transmission system based on communication technology 3g
11/30/2011CN202055817U 深井和高温高压井测试装置 Deep and HPHT testing device
11/30/2011CN202055816U 一种加工井中磁梯度三分量探头基座的工装 A process for the three-component borehole magnetic gradient probe base tooling
11/30/2011CN202055815U 氚水投注装置 HTO betting system
11/30/2011CN202055814U 一种新型压裂仪表车便携数据采集系统 A new car dashboard fracturing portable data acquisition system
11/30/2011CN202055813U 石油测井车及其集成通信接口单元 Oil logging trucks and integrated communications interface unit
11/30/2011CN202055796U 井下温、压组合测试密封装置 Downhole temperature, pressure seal combination test
11/30/2011CN202055268U 送电线路扩底锚杆扩底内径测量装置 Transmission Line belled bolt inside diameter measuring device belled
11/30/2011CN102261242A 低压油井液面自动监测装置 Low oil level automatic monitoring devices
11/30/2011CN102261241A 矿井瓦斯抽采系统中单孔计量的装置和方法 Mine gas drainage system apparatus and method for the measurement of hole
11/30/2011CN102261240A 精确监控牙轮钻机钻孔深度的装置及其监控方法 Accurate monitoring of rotary drill drilling depth monitoring device and method
11/29/2011US8066058 System, method, and apparatus for breaking fracturing fluids
11/29/2011US8065907 Apparatus and method for continuous measurement of a physical property of a drilling fluid
11/29/2011US8065813 Excavation device and profile analyses of the excavation itself and associated method
11/29/2011CA2530521C Downhole data communication
11/24/2011WO2011146866A2 Method and apparatus for deploying and using self-locating downhole devices
11/24/2011WO2011146170A1 System and method for controlling one or more fluid properties within a well in a geological volume
11/24/2011WO2011145985A1 A method of real time diagnostic of fracture operations with combination of tube waves and microseismic monitoring.
11/24/2011WO2011115786A3 Toroid galvanic azimuthal lwd tool
11/24/2011WO2011115683A3 Multi wavelength dts fiber window with psc fibers
11/24/2011WO2011109714A3 Apparatus and method for measuring downhole fluid composition and properties
11/24/2011WO2011103525A3 Systems and methods of a collar bore for a sample bottle assembly
11/24/2011WO2011094082A3 Integrated permanent monitoring system
11/24/2011WO2011067558A3 Method ans apparatus for in-situ wellbore measurement and control with inductive connectivity
11/24/2011WO2011060282A3 Electrode configuration for downhole nuclear radiation generator
11/24/2011WO2011015824A3 Collision avoidance system with offset wellbore vibration analysis
11/24/2011WO2009090494A3 Subsurface tagging system with wired tubulars
11/24/2011US20110288778 Method for estimation of sagd process characteristics
11/24/2011US20110286309 Downlinking Communication System and Method Using Signal Transition Detection
11/24/2011US20110286308 Downlinking Communication System and Method
11/24/2011US20110286307 Acoustic logging while drilling tool having raised transducers
11/24/2011US20110286304 Downhole Acoustic Emission Formation Sampling
11/24/2011US20110284732 Well Flaw Detection System (Embodiments)
11/24/2011US20110284288 Apparatus and process for wellbore characterization
11/24/2011US20110284244 Method And Apparatus For Suspending A Cable In A Pipe
11/24/2011US20110284218 Method for increasing the formation oil yield during crude oil production and apparatus thereof
11/24/2011US20110284217 Method to measure injector inflow profiles
11/24/2011US20110284216 Method and system for producing hydrocarbon fluid through a well with a sensor assembly outside the well casing
11/24/2011CA2800072A1 Detection of tool in pipe
11/24/2011CA2799940A1 Method and apparatus for deploying and using self-locating downhole devices
11/24/2011CA2799719A1 A method of real time diagnostic of fracture operations with combination of tube waves and microseismic monitoring
11/24/2011CA2798850A1 Method for interpretation of distributed temperature sensors during wellbore treatment
11/23/2011EP2291688B1 Flow line electric impedance generation
11/23/2011CN202050094U Compression spring type weight bar contact
11/23/2011CN202047814U Slurry continuous wave generator driven by columnar laminated ceramic
11/23/2011CN202047813U Inner-excited type stress wave generator
11/23/2011CN202047812U Oil-field logging remote transmission control system
11/23/2011CN202047811U Infrasonic-wave echo device
11/23/2011CN202047810U Well logging-testing twin-roll interlocking main machine
11/23/2011CN202047809U Intelligent monitoring circuit for wellhead state
11/23/2011CN202047808U Calibration device for three dimensional induction log instrument
11/23/2011CN202047779U Inner balance electronic sensing cementing head
11/23/2011CN202047757U Layered sand prevention layered testing and layered oil extraction integrated pipe column
11/23/2011CN102257094A Improvement in enhanced oil recovery by polymer without supplementary equipment or product
11/23/2011CN102256561A Method and system for transferring data from a device to a receiving unit
11/23/2011CN102251770A Wireless transmission method for gas drilling underground information while drilling
11/23/2011CN102251769A Electromagnetic wave signal transmission method and system of measurement while drilling
11/23/2011CN102251768A Optic fiber gyroscope inclinometer
11/22/2011US8064289 Measuring device for a drilling apparatus
11/22/2011US8061444 Methods and apparatus to form a well
11/22/2011US8061443 Downhole sample rate system
11/22/2011US8061440 Combining belief networks to generate expected outcome
11/22/2011US8061053 Multiple stage mechanical drift tool
11/22/2011US8061047 Active positioning of downhole devices using spherical motors
11/17/2011WO2011143378A1 Apparatus and method for monitoring corrosion and cracking of alloys during live well testing
11/17/2011WO2011143364A1 Telescoping orientation joint
11/17/2011WO2011143084A1 Multiphase flowmeter with batch separation
11/17/2011WO2011142953A1 Passive monitoring system for a liquid flow
11/17/2011WO2011141687A2 Subterranean flow barriers containing tracers
11/17/2011WO2011141173A2 Transmission system for communication between downhole elements
11/17/2011WO2011115784A3 Multiple depths of investigation using two pairs of toroid transmitters
11/17/2011WO2011097063A3 Measurement devices with memory tags and methods thereof
11/17/2011WO2011094691A3 Lithology pair ratio: a ratio-based lithology indicator using pair production
11/17/2011WO2011094405A3 Time dependent neutron-gamma spectroscopy
11/17/2011WO2011091269A3 Method for determining rock formation fluid interaction properties using nuclear magnetic resonance well logging measurements
11/17/2011WO2011090656A3 Microresistivity anisotropy logging tool employing a monopole current injection electrode
11/17/2011WO2011090531A3 Connection system and method for subsea cables in severe environments
11/17/2011WO2011084828A3 Drop/pump memory through-casing measurement logging tools
11/17/2011WO2011082057A3 Calibration method for a microresistivity logging tool