Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 49 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Patents for E21B 49 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells (11,875)
04/2010
04/14/2010CN201437727U Multifunction oil-well sampling device
04/14/2010CN201437726U Adjustable device for limit switch of backup arm of lithology density logging tool
04/14/2010CN101694163A Determination method of deep tunnel roof support forms and support depth
04/14/2010CN101694157A Method for shortening length of log tool and dual laterolog tool with electrode probe internally provided with electronic circuit
04/13/2010US7695629 Microfluidic separator
04/08/2010WO2010039061A1 Method for determining the current condensate saturation in the bottomhole zone of a well in a gas condensate reservoir bed
04/08/2010WO2010039060A1 Method for determining the current gas saturation in the bottomhole zone of a well in a volatile oil deposit
04/08/2010US20100084193 Air hammer coring apparatus and method
04/08/2010US20100083749 Probe for pressure meter
04/08/2010US20100083748 Elongated probe
04/08/2010DE102009041750A1 Elektrisch nicht leitende Büchse zur Verwendung bei der Bohrlochinstrumentierung Electrically non-conductive sleeve for use in the downhole instrumentation
04/07/2010EP2171209A1 Method and apparatus for controlling precession in a drilling assembly
04/06/2010US7690423 Downhole tool having an extendable component with a pivoting element
04/06/2010CA2680958A1 Reservoir management linking
04/06/2010CA2396168C Wellbore logging system
04/01/2010WO2010036258A1 Multi-probe pressure test
04/01/2010WO2010006329A3 Monte carlo method for laplace inversion of nmr data
04/01/2010WO2009135172A3 Method and system for annular region evaluation in sequestration wells
04/01/2010US20100078166 Tubing expansion
03/2010
03/31/2010EP2167789A2 Method and apparatus for geobaric analysis
03/31/2010CN201433761Y Original soil sample collecting device
03/31/2010CN201433760Y Gas inlet and outlet mechanism of online sampling device
03/31/2010CN101688438A Running tool for expandable liner hanger and associated methods
03/30/2010CA2352103C Method and system for extracting, analysing and measuring constituents transported by a bore fluid
03/25/2010WO2010033751A2 Method and apparatus for formation evalution after drilling
03/25/2010WO2010032152A1 Single packer system for fluid management in a wellbore
03/25/2010WO2010001216A3 Methods and apparatus for removing deposits on components in a downhole tool
03/25/2010WO2008157474A3 Method and apparatus for geobaric analysis
03/25/2010US20100071898 Single Packer System for Fluid Management in a Wellbore
03/25/2010US20100071895 System and Method of Controlling Surge During Wellbore Completion
03/25/2010CA2736516A1 Single packer system for fluid management in a wellbore
03/24/2010CN201428453Y Underground artificial radioactivity reservoir fluid analyzer
03/24/2010CN201428452Y Module intelligentized drilling type borehole wall coring device
03/24/2010CN201428451Y Ground control panel of stratum testing evaluation instrument
03/24/2010CN201428444Y Dual-lateral and micro-lateral combined logging instrument
03/24/2010CN101680869A Method and apparatus for obtaining heavy oil samples from a reservoir sample
03/24/2010CN101680862A High accuracy contamination estimation in hydrocarbon samples using GCxGC
03/24/2010CN101676521A Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system
03/24/2010CN101676520A Horizontal guiding drill while-drilling acoustic wave imaging detection early warning system and detection method thereof
03/24/2010CN101676519A Wake-up and management module of horizontal guiding drill while-drilling detection early warning power supply
03/24/2010CN101676518A Horizontal guiding drill while-drilling detection early warning system
03/23/2010US7681662 Water bottom ore sampler and method of using the same
03/18/2010WO2009139992A3 Methods and apparatus to control a formation testing operation based on a mudcake leakage
03/18/2010US20100070182 Method in an oil and/or a gas production system
03/18/2010US20100064795 Downhole fluid property chromatography
03/17/2010EP2163724A2 Measuring properties of low permeability formations
03/17/2010EP2163723A1 Method and tool for performing a pilot fluid injection and production test in a well
03/17/2010CN101672197A Processing method for high-pressure water-enriched filling karst cavity
03/17/2010CN101672160A Quick well formation device in soft soil layer
03/17/2010CN100594288C Oil pool development simulation system, upper pressure covering system and data processing method
03/16/2010US7677330 Apparatus for in situ testing of a soil sample
03/16/2010US7677306 Hydraulic fracturing
03/16/2010US7677119 System for using a device for picking up samples in a soil or material with powdery or granular nature
03/16/2010CA2434810C Determining the in situ effective mobility and the effective permeability of a formation
03/11/2010WO2010027350A1 Acquiring and concentrating a selected portion of a sampled reservoir fluid
03/11/2010WO2009140400A3 Sonic drill bit for core sampling
03/11/2010WO2009140387A3 Method and apparatus for downhole spectroscopy
03/11/2010US20100059279 Downhole window finder system
03/11/2010US20100059221 Subsea fluid sampling and analysis
03/10/2010CN201420551Y Bidirectional seal antifreezing sampling valve device
03/10/2010CN201420550Y Theft-proof sampler for oil wells
03/10/2010CN101666228A Hydraulic accumulating device of telescoping ram
03/10/2010CN101666227A Method for acquiring natural gamma spectra
03/10/2010CN101666226A Probe sleeve with shock-proof and anti-collision performance
03/09/2010US7673704 Variable positioning deep cutting rotary coring tool with expandable bit
03/09/2010US7673681 Treating tar sands formations with karsted zones
03/09/2010US7673506 Apparatus and method for actuating a pressure delivery system of a fluid sampler
03/09/2010CA2525035C Determining gradients using a multi-probed formation tester
03/04/2010WO2010023517A2 Detecting gas compounds for downhole fluid analysis
03/04/2010WO2009132274A3 Apparatus and method for discharging multiple fluids downhole
03/04/2010WO2009126888A3 Method for characterizing a geological formation traversed by a borehole
03/04/2010US20100051347 In-situ formation strength testing with coring
03/04/2010US20100050761 Detecting gas compounds for downhole fluid analysis
03/04/2010US20100050760 Methods and apparatus for decreasing a density of a downhole fluid
03/04/2010CA2735110A1 Detecting gas compounds for downhole fluid analysis
03/03/2010CN201416445Y Polymer injection well head sampler
03/03/2010CN201416444Y Double-energy X-ray measurement device of multiphase flow indexes in oil-gas fields
03/03/2010CN201416443Y Micro-spheroidal focused logging device
03/03/2010CN201416441Y Cable telemetry logging tool
03/03/2010CN201416414Y Integral combination type electric cable-passing through packer for deep well
03/03/2010CN101660408A Stratification oil production logging instrument of low-yield liquid oil well
03/02/2010US7671983 Method and apparatus for an advanced optical analyzer
03/02/2010US7669469 Method and apparatus for a continuous data recorder for a downhole sample tank
02/2010
02/28/2010CA2675800A1 Methods and apparatus for decreasing a density of a downhole fluid
02/25/2010WO2010020435A1 Universal flash system and apparatus for petroleum reservoir fluids study
02/25/2010WO2009152337A3 Multi-resolution borehole profiling
02/25/2010US20100044044 Controlling transient underbalance in a wellbore
02/25/2010US20100044037 Method and apparatus for obtaining fluid samples
02/25/2010CA2734793A1 Universal flash system and apparatus for petroleum reservoir fluids study
02/24/2010CN201412144Y Underground thick oil sampler
02/24/2010CN201412143Y Oil-stolen-prevention and freeze-prevention sampling device
02/24/2010CN201412142Y Hanging piece device for oil pipe internal corrosion testing
02/24/2010CN201412107Y Hand-hold mobile freeze-proof anti-toxin well head sampler
02/24/2010CN101655009A Method for manufacturing annular test-piece from cylindrical rock-soil material sample
02/23/2010US7666679 Estimating concentration of carbon dioxide in geologic formation; enhanced oil recovery; peteroleum refining
02/23/2010US7665519 System and method for downhole sampling or sensing of clean samples of component fluids of a multi-fluid mixture
02/23/2010US7665354 Method and apparatus for an optimal pumping rate based on a downhole dew point pressure determination
02/19/2010CA2676580A1 Method for calibrating historical data on oil tanks by means of local parametrization
02/18/2010WO2010019900A1 Multiphase drilling systems and methods
02/18/2010WO2009129185A3 Apparatus and method for obtaining formation samples
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