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9038716 Fluid control modules for use with downhole tools  
Downhole tool fluid flow control apparatus including a first fluid valve between a first portion of a first flowline and a second portion of a second flowline. The first and second flowlines are...
9033048 Apparatuses and methods for determining wellbore influx condition using qualitative indications  
Apparatuses and methods useable in drilling installations having a mud loop for detecting ongoing or imminent kick events are provided. An apparatus includes a first sensor configured to measure a...
9029155 Direct measurement of fluid contamination  
The present disclosure relates to apparatuses and methods to detect a fluid contamination level of a fluid sample. The method may comprise providing a fluid sample downhole from a subterranean...
9016369 Downhole piston accumulator system  
A downhole piston accumulator system is disclosed, such as for a formation tester. The soft piston of the system is designed to withstand high pressure downhole fluids in small volume cylinders,...
9010440 Method and apparatus for centrifugal separation  
Embodiments of the present invention generally relate to methods and apparatus for centrifugal separation. In one embodiment, a separator includes an outer tubular having ends sealed from the...
8997861 Methods and devices for filling tanks with no backflow from the borehole exit  
A method for sampling fluid from a subsurface formation includes retrieving fluids from the formation using a plurality of pumps. The method also includes the steps of controlling a flow of the...
8991502 Sampling assembly for a well  
A sampling assembly for taking single or multiphase production fluid samples from a subsea well. The sampling assembly includes a receiving structure that houses a saver sub and a retrievable...
8985218 Formation testing  
An example downhole tool configured for conveyance in a wellbore extending into a subterranean formation comprises a first fluid communicator configured to allow drilling fluid communication with...
8978757 Remote actuation testing tool for high pressure differential downhole environments  
A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated...
8973657 Gas generator for pressurizing downhole samples  
An apparatus for obtaining fluid samples in a subterranean wellbore comprises a carrier assembly configured to be disposed in a subterranean wellbore; a sampling chamber operably associated with...
8967249 Reservoir and completion quality assessment in unconventional (shale gas) wells without logs or core  
Embodiments herein relate to a method for recovering hydrocarbons from a formation including collecting and analyzing a formation sample, drilling operation data, and wellbore pressure...
8967253 Pump control for formation testing  
A downhole formation fluid pumping and a sampling apparatus are disclosed that may form part of a formation evaluation while drilling tool or part of a tool pipe string. The operation of the pump...
8967242 Auxiliary flow line filter for sampling probe  
An apparatus includes a downhole tool for conveyance in a wellbore extending into a subterranean formation. The downhole tool includes a focused sampling probe that includes a piston movable...
8960998 System and method of mixing a formation fluid sample in a downhole sampling chamber with a magnetic mixing element  
A system for mixing a formation fluid sample obtained in a downhole sampling chamber. The system includes a mixing element disposed in the downhole sampling chamber. A support stand is operable to...
8950484 Formation tester tool assembly and method of use  
A formation tester tool can include a longitudinal probe drill collar having a surface, a formation probe assembly located within the probe drill collar, the formation probe assembly including a...
8925636 Sampling skid for subsea wells  
A system for sampling production well production fluids from a manifold interface panel on a subsea production manifold. In some embodiments, the system includes a remotely operated vehicle, a...
8912000 Downhole mass spectrometric hydrocarbon determination in presence of electron and chemical ionization  
Methods and apparatus for obtaining a mass spectrum of a sample and determining a concentration of a component of the sample by utilizing a model of chemical and electron ionization and the...
8910711 Fluid container reloading tool  
A fluid container reloading tool for a downhole fluid sampling tool (114) is described. The reloading tool includes an elongated cylindrical body. The body may include a bottom opening sized to...
8905130 Fluid sample cleanup  
An apparatus having a body including a plurality of packers and a plurality of ports between the packers. The packers and ports are spaced along a longitudinal axis of the body. The apparatus also...
8905128 Valve assembly employable with a downhole tool  
A valve assembly employable with a downhole tool configured for conveyance in a wellbore extending into a subterranean formation and method of operating the same. The valve assembly includes an...
8905131 Probeless packer and filter systems  
An apparatus described herein includes a formation sampling tool having a body; a packer extendibly mounted to the body and having a first inlet, the first inlet having a first rigid insert fixed...
8899323 Modular pumpouts and flowline architecture  
Modular pumpouts and flowline architecture are described. An example apparatus includes a downhole tool to sample fluid from a subterranean formation, and a plurality of fluidly coupled pump...
8899324 Methods and apparatus to sample heavy oil in a subterranean formation  
A method for sampling fluid in a subterranean formation includes reducing a viscosity of the fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample....
8893786 Well tools operable via thermal expansion resulting from reactive materials  
Methods of actuating a well tool can include releasing chemical energy from at least one portion of a reactive material, thermally expanding a substance in response to the released chemical...
8857512 Situ extraction process for the recovery of hydrocarbons  
An in situ extraction process for the recovery of hydrocarbons from a hydrocarbon bearing formation, including the steps of injecting a solvent consisting substantially of one of the group of H2S,...
8849582 Offline analyzer system and method for multivariate characterization of properties in crude and heavy hydrocarbon oils  
A method and apparatus is provided for off-line concentration determination of components liquid hydrocarbon mixtures such as crude or heavy oil. A sampling unit continuously delivers a sample...
8839871 Well tools operable via thermal expansion resulting from reactive materials  
Methods of actuating a well tool can include releasing chemical energy from at least one portion of a reactive material, thermally expanding a substance in response to the released chemical...
8838390 System for gas detection, well data collection, and real time streaming of well logging data  
A system for creating a log during gas detection and monitoring is disclosed herein. The system can include a gas detection and well logging device for sensing and transmitting data, which can...
8826981 System and method for fluid processing with variable delivery for downhole fluid analysis  
Described herein are variable-volume reservoir (e.g., syringe pump) based processes and systems usable to characterize samples of reservoir fluids, without having to first transport the fluids to...
8826978 Method of testing the operation of a producing oil well operated using the formation hydrofracturing process  
This invention relates to oil production, more specifically, oil production using the formation hydrofracturing process, and can be used for monitoring the operation of a producing oil well.
8825408 Using models for equilibrium distributions of asphaltenes in the prescence of GOR gradients to determine sampling procedures  
Methods and systems to characterize a fluid in a reservoir to determine if the fluid is in one of equilibrium or non-equilibrium in terms of one of gravity, solvency power, entropy effect or some...
8820401 Oil-pressure type fixed piston sampler  
The present invention relates to an oil-pressure type fixed piston sampler for sampling a soil sample for site investigation. The oil-pressure type fixed piston sampler comprises a sampling unit...
8814421 Method of mixing a formation fluid sample by rotating a downhole sampling chamber  
A method of mixing a formation fluid sample obtained in a downhole sampling chamber. The method includes positioning the downhole sampling chamber having a longitudinal axis in a rotary stand and...
8794318 Formation evaluation instrument and method  
Subsurface formation evaluation comprising, for example, sealing a portion of a wall of a wellbore penetrating the formation, forming a hole through the sealed portion of the wellbore wall,...
8775087 System for acquiring and displaying in near real time gas analysis, well data collection, and other well logging data  
The system includes a gas processor with gas processor data storage and computer instructions to receive in various device protocols simultaneously information from rig based sensors and gas...
8775088 Method for acquiring and displaying in near real time gas analysis, well data collection, and other well logging data  
The method uses a gas processor, various data collection devices each having a unique device protocol to receive drilling data, calibrate the devices and graphically present the data using both...
8770286 Downhole fluid filter  
An apparatus for testing a subterranean formation penetrated by a wellbore, comprising a tool having a sample flow line an inlet disposed with the tool and configured to establish fluid...
8763696 Formation testing  
Formation testing which may involve circulating mud in a pipe string from a mud pit through a port in the pipe string to a downhole diverter sub, wherein the pipe string is suspended in a wellbore...
8757254 Adjustment of mud circulation when evaluating a formation  
A method for controlling drilling fluid rate in a wellbore is disclosed. A drill string is disposed into the well and connected to a formation testing or sampling tool. Drilling fluid is...
8752620 Systems and methods for single-phase fluid sampling  
An assembly capable of being disposed in a subterranean bore for obtaining a fluid sample is described. The assembly can include an apparatus having a sample chamber and a housing encasing the...
8744774 Cleanup production during sampling  
Cleanup monitoring and prediction in real time targeting estimation of pumpout volume versus final contamination, including detecting breakthrough of formation fluid to a sampling tool and...
8739898 Apparatus and methods for detecting gases during coring operations  
A method for detecting the presence of an acid gas in a formation fluid from a subterranean formation comprises (a) lowering a coring assembly into a wellbore. The coring assembly including an...
8726988 Focused sampling of formation fluids  
An apparatus for obtaining a fluid at a position within a wellbore that penetrates a subterranean formation includes a body adapted to be disposed in the wellbore on a conveyance equipped with one...
8726987 Formation sensing and evaluation drill  
The present disclosure relates methods and apparatuses for testing and sampling of underground formations or reservoirs. The apparatus may include at least one extendable element configured to...
8714246 Downhole measurement of formation characteristics while drilling  
Methods and apparatus for acquiring mud gas logging data, comparing the mud gas logging data to second data associated with a sidewall fluid sample measurement, and adjusting calibration data...
8708042 Apparatus and method for valve actuation  
An apparatus for controlling fluid flow that includes a chamber having a first valve and a second valve; a sensor that senses a pressure parameter associated with the chamber; and a controller...
8672026 Fluid control in reservior fluid sampling tools  
A pumping system comprising: a probe to suction a fluid from a fluid reservoir; a pump in fluid communication with said probe; a sensor for detecting phase changes in said pumping system, said...
8640771 Determination of coal bed natural gas production factors and a system to determine same  
Well fluids in coalbed natural gas reservoirs and other carbonaceous reservoirs are analyzed to determine production factors such as gas content, critical desorption pressure, and/or other...
8636064 Formation evaluation while drilling  
In one embodiment, a sampling while drilling tool includes a drill collar having a first end, a second end, an outer wall extending between the first and second ends, and at least one opening...
8622127 Olefin reduction for in situ pyrolysis oil generation  
Methods for improving the quality of hydrocarbon fluids produced by in situ pyrolysis or mobilization of organic-rich rock, such as oil shale, coal, or heavy oil. The methods involve reducing the...