| 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) |
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| 05/21/2013 | US8443889 Telescoping conduits with shape memory foam as a plug and sand control feature |
| 05/21/2013 | US8443661 High pressure and high temperature linear swell measurement method |
| 05/21/2013 | CA2712798C Methods and apparatus for analysis of downhole compositional gradients and applications thereof |
| 05/16/2013 | WO2013070445A1 Completion method for stimulation of multiple intervals |
| 05/16/2013 | WO2013070345A1 Real time downhole sensor data for controlling surface stimulation equipment |
| 05/16/2013 | US20130118734 Method and apparatus for estimating a downhole fluid property using a rare earth doped laser |
| 05/16/2013 | CA2854117A1 Real time downhole sensor data for controlling surface stimulation equipment |
| 05/16/2013 | CA2853932A1 Completion method for stimulation of multiple intervals |
| 05/15/2013 | EP2591383A1 Method and system of determining constituent components of a fluid sample |
| 05/15/2013 | CN202937259U Inter-well electromagnetic transient monitoring system |
| 05/15/2013 | CN202937251U Testing pulley |
| 05/15/2013 | CN202937249U Stopper |
| 05/15/2013 | CN202937246U Multilateral well experimental model and edge water stimulation device and multilateral well experimental system thereof |
| 05/15/2013 | CN103104255A Device and method for measuring downhole liquid production profile flow and water holding capacity |
| 05/15/2013 | CN103104254A Multifunctional oil reservoir simulation experiment device and experiment method thereof |
| 05/15/2013 | CN103104243A Processing method for vibrating screen mud parameter signals |
| 05/15/2013 | CN102094645B Small-bore microspherically-focused logging instrument |
| 05/15/2013 | CN102031956B Built-in method of oil deposit physical model mineshaft |
| 05/15/2013 | CN101666228B Hydraulic accumulating device of telescoping ram |
| 05/14/2013 | US8439111 Hydrocarbon recovery process |
| 05/14/2013 | US8439110 Single packer system for use in heavy oil environments |
| 05/14/2013 | US8438917 Methods of long-term gravimetric monitoring of carbon dioxide storage in geological formations |
| 05/14/2013 | CA2787510C Control valve assembly |
| 05/14/2013 | CA2752135C Method of retreiving a mobilty enhanced formation fluid sample |
| 05/14/2013 | CA2585061C Method and apparatus for well treatment |
| 05/10/2013 | WO2013016669A3 Active equivalent circulating density control with real-time data connection |
| 05/10/2013 | WO2013016095A3 Apparatus and method for retrieval of downhole sample |
| 05/10/2013 | WO2013012906A3 Viscosity measurement in a fluid analyzer sampling tool |
| 05/09/2013 | US20130113468 Method and apparatus for measuring linear displacment |
| 05/08/2013 | EP2588716A1 Method for in situ fluid assessment and optimization during wellbore displacement operations |
| 05/08/2013 | EP2588703A1 Remotely operable underwater drilling system and drilling method |
| 05/08/2013 | CN202926324U Polymer injection well environmental protection sampler |
| 05/08/2013 | CN202926323U Direction sound wave well logging device while drilling |
| 05/08/2013 | CN202926322U Drill vibration signal collection short section |
| 05/08/2013 | CN202926321U Storage type position energy spectrum logging instrument |
| 05/08/2013 | CN202926315U Sand-filled pipe |
| 05/08/2013 | CN202926311U Well logging exploring tube |
| 05/08/2013 | CN202926306U Oil gas sampling separation drum |
| 05/08/2013 | CN103097657A Machine, computer program product and method to generate unstructured grids and carry out parallel reservoir simulation |
| 05/08/2013 | CN103089255A Multi-phase flow logging instrument adopting full flow-collecting dynamic interface tracking method |
| 05/08/2013 | CN103089254A Physical simulation test tube of multi-field coupling coalbed methane exploitation |
| 05/08/2013 | CN103089253A Method using wavelet transformation to calculate formation pore pressure |
| 05/08/2013 | CN103089252A Ruling method for three-dimensional induction logger |
| 05/08/2013 | CN103089251A Front end water and gas release device used for exploration |
| 05/08/2013 | CN103089250A Dual gamma ray and neutron detector in a multi-sensor apparatus and related methods |
| 05/08/2013 | CN103089241A Heat insulation and preservation device |
| 05/08/2013 | CN103089233A Installation structure of radioactive source for radioactivity logging device |
| 05/08/2013 | CN102182454B Mechanism for quickly forming ice valve and improving strength of same |
| 05/08/2013 | CN102155215B Horizontal well dual caliper |
| 05/08/2013 | CN102080539B Mineral exploration method adopting rotaary and crossed type mineral exploration network |
| 05/08/2013 | CN102022112B Intelligent oil well simulation experiment system and working method |
| 05/08/2013 | CN102011582B Apparatus for testing rock drillability under stratum condition |
| 05/08/2013 | CN102011575B Method for optimizing structure of annular water retention rate logging sensor array |
| 05/08/2013 | CN101260804B Systems and methods for well data compression |
| 05/07/2013 | US8436743 Method and apparatus for measuring a parameter within the well with a plug |
| 05/07/2013 | US8434357 Clean fluid sample for downhole measurements |
| 05/07/2013 | US8434355 High pressure high temperature linear swell meter |
| 05/07/2013 | US8434354 Apparatus and method for a wireless sensor to monitor barrier system integrity |
| 05/02/2013 | WO2013062879A1 System and method of quantifying an organic material in a sample |
| 05/02/2013 | US20130104641 Apparatus and methods for orienting, stabilizing, or stably operating a logging tool |
| 05/02/2013 | CA2852524A1 System and method of quantifying an organic material in a sample |
| 05/01/2013 | CN202914094U High-strength passing sleeving resistivity logging instrument probe connecting pup joint |
| 05/01/2013 | CN202914093U Natural gamma spectralog service instrument |
| 05/01/2013 | CN202914083U Underground bubbling pressure rapid tester |
| 05/01/2013 | CN202914070U Drilling and logging integrated comprehensive instrument system for supporting remote monitoring |
| 05/01/2013 | CN202914069U Drilling and logging integrated comprehensive instrument system |
| 05/01/2013 | CN202914062U Device for predicting capacity of fractured-porous oil reservoir |
| 05/01/2013 | CN1800578B Apparatus and method for formation evaluation |
| 05/01/2013 | CN103075151A Flow measurement tool for small section |
| 05/01/2013 | CN103075150A In-situ stress testing method of method for relieving stress in original hole site for multiple times |
| 05/01/2013 | CN103075147A Underground environment simulation device and method |
| 05/01/2013 | CN103075143A Method for testing fluid-producing section of horizontal pump well |
| 05/01/2013 | CN103075142A Method for selecting water plugging oil well during development of oilfield through water injection |
| 05/01/2013 | CN101881160B Fixed point sampler |
| 05/01/2013 | CN101806215B Method for judging reservoir fluid type with irreducible water saturation data |
| 05/01/2013 | CN101210492B Formation fluid sampling apparatus and methods |
| 04/30/2013 | US8433551 Machine, computer program product and method to carry out parallel reservoir simulation |
| 04/30/2013 | US8430186 Sealed core |
| 04/30/2013 | US8429961 Wireline conveyed single phase fluid sampling apparatus and method for use of same |
| 04/30/2013 | CA2702020C Modular connector and method |
| 04/30/2013 | CA2667523C High accuracy contamination estimation in hydrocarbon samples using gc x gc |
| 04/30/2013 | CA2663525C Fluid injection management method for hydrocarbon recovery |
| 04/30/2013 | CA2594586C Instrumentation probe for in situ measurement and testing of the seabed |
| 04/25/2013 | WO2013059585A2 Methods, computer readable medium, and apparatus for determining well characteristics and pore architecture utilizing conventional well logs |
| 04/25/2013 | WO2013058976A1 Detection and quantification of isolation defects in cement |
| 04/25/2013 | WO2013056313A1 Autonomous method and system for determining elemental composition of an ore |
| 04/25/2013 | WO2013056301A1 A method for zoning a site for blasting purposes |
| 04/25/2013 | WO2012178214A3 Pump drain arrangements for packer systems and methods for sampling underground formations using same |
| 04/25/2013 | DE102011085192A1 Vorrichtung und Verfahren zur Probenentnahme unter Erhalt eines am Probenahmeort herrschenden Druckes Apparatus and method for sampling to obtain a ruling at the sampling pressure |
| 04/25/2013 | CA2852744A1 Autonomous method and system for determining elemental composition of an ore |
| 04/24/2013 | EP2583080A1 Non-invasive compressibility and in situ density testing of a fluid sample in a sealed chamber |
| 04/24/2013 | CN202900272U Downhole drilling fluid drainage short section device |
| 04/24/2013 | CN202900271U Horizontal well segment production fast electric sampler |
| 04/24/2013 | CN202900270U Output liquid sampling device of natural gas well |
| 04/24/2013 | CN202900269U Oil well simple and easy sampling device |
| 04/24/2013 | CN202900268U A central sampling device |
| 04/24/2013 | CN202900267U Compact self-locking oil test burner boom |
| 04/24/2013 | CN202900266U Portable sampling drilling machine |
| 04/24/2013 | CN202900258U Oilwell underpit pressure testing system |
| 04/24/2013 | CN202900249U Internal connection plug for headstall for testing |