Matches 1 - 50 out of 92 1 2 >


Match Document Document Title
9008971 Measurement of hydraulic head profile in geologic media  
A system for measuring a profile of a hydraulic head. A flexible liner is everted down the borehole. The profile of the transmissivity of the geologic media is obtained during (and indirectly...
8991245 Apparatus and methods for characterizing a reservoir  
An apparatus comprising a downhole tool configured for conveyance within a borehole penetrating a subterranean formation, wherein the downhole tool comprises: a probe assembly configured to seal a...
8928322 Method and apparatus for determining formation water saturation during drilling  
A method for determining water saturation in a subsurface formation include determining an invasion depth in the formation from a plurality of measurements made within a wellbore drilled through...
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,...
8583378 Method of estimating physical parameters of a geological formation  
A well passing through a geological formation is fitted with a tube, open at its bottom end, that is filled with a fluid. Another fluid is in the annular space between the tube and the wall of the...
8191416 Instrumented formation tester for injecting and monitoring of fluids  
An example instrumented formation tester for injecting fluids and monitoring of fluids described herein includes a downhole tool which can be deployed in a wellbore via a wireline or a drill...
8087292 Method of miscible injection testing of oil wells and system thereof  
A method of determining reservoir permeability and geometry of a subterranean formation having a reservoir fluid including oil that has not been previously water-flooded includes isolating the...
7944211 Characterization of formations using electrokinetic measurements  
A method for characterization of a formation that includes inducing fluid motion in a formation while making electronic measurements.
7886591 Method for improving the determination of earth formation properties  
Methods and apparatus for improving the determination of at least one multiphase flow parameter of an earth formation comprising propagating within the formation a first salinity front,...
7472594 Fluid level indication system and technique  
A technique that is usable with a well includes disposing a distributed temperature sensor in a conduit that traverses a region of the well. The region contains at least two different well fluid...
7281422 Method for borehole conductivity profiling  
A method of using an everting borehole liner to perform fluid conductivity measurements in materials surrounding a pipe, tube, or conduit, such as a borehole below the surface of the Earth. A...
7229593 Portable vapor diffusion coefficient meter  
An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the...
7197924 Apparatus and method for evaluating subterranean environments  
A subterranean environment evaluating apparatus and method, which measure, e.g., the geologic distribution coefficient in a subterranean environments using, e.g., a pit formed by boring. The...
7178391 Insertion tube methods and apparatus  
A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string...
7013724 Method for characterizing parameters of wells, well bottom zone and formation, and device for carrying out said method  
The invention is related to the oil industry and can be used in well intake capacity testing and well bottom zone treatment. On injection line in front of the wellhead it is set a measuring...
6976386 Tensiometer methods  
A method for collecting data regarding a matric potential of a media includes providing a tensiometer having a stainless steel tensiometer casing, the stainless steel tensiometer casing comprising...
6910374 Borehole conductivity profiler  
A method of using an everting borehole liner to perform fluid conductivity measurements in materials surrounding a pipe, tube, or conduit, such as a borehole below the surface of the Earth. A...
6886632 Estimating formation properties in inter-well regions by monitoring saturation and salinity front arrivals  
A method and system of monitoring the movement of at least one front in an inter-well region is comprised of: providing a first well representing the origination of at least one front (such as a...
6843118 Formation tester pretest using pulsed flow rate control  
The present invention is directed to methods and apparatus for using a formation tester to perform a pretest, in a formation having low permeability, by intermittently collecting a portion of...
6810755 Permeameter system and method to determine soil hydraulic capacity for onsite wastewater systems  
A permeameter having a hollow tube with a second tube slidably disposed within an internal chamber of the hollow tube, used in combination with one or more tables each of which correlates a...
6786086 Determining the in situ effective mobility and the effective permeabilty of a formation  
A method for determining the in-situ effective mobility of hydrocarbons in a formation layer, in which a formation test tool, having a fluid analyzer, induces sample fluid to flow from the...
6772621 Tensiometer methods and apparatus  
A method for collecting data regarding a matric potential of a media includes providing a tensiometer having a stainless steel tensiometer casing, the stainless steel tensiometer casing comprising...
6761062 Borehole testing system  
A self-contained, transportable system for conducting any of hydrologic tests or water sampling techniques without the need for retooling or readjusting the system. The system includes a borehole...
H002052 Small drill-hole, gas mini-permeameter probe  
The distal end of a basic tube element including a stopper device with an expandable plug is positioned in a pre-drilled hole in a rock face. Rotating a force control wheel threaded on the tube...
6321595 Characterization of organic contaminants and assessment of remediation performance in subsurface formations  
Characterization of organic contaminants in subsurface formation is performed by methods for detecting the presence of nonaqueous phase liquid in a subsurface formation, and for determining the...
6263726 Sidewall tensiometer and method of determining soil moisture potential in below-grade earthen soil  
A sidewall tensiometer to in situ determine below-grade soil moisture potential of earthen soil includes, a) a body adapted for insertion into an opening in earthen soil below grade, the body...
6098448 In situ measurement apparatus and method of measuring soil permeability and fluid flow  
An apparatus and method for discrete soil gas and saturated liquid permeability measurements with direct push emplacement systems (such as a cone penetrometer rod). A modified direct push...
5974874 Method for testing gas wells in low pressured gas formations  
The "Tank Test" method for determining well tests in low pressured reservoirs or aquifers utilizes gravity drainage from a water storage tank to inject water into the reservoir. The Tank Test...
5789663 Porous medium test with tracer recharging and discharging through a single well  
A method for quantitatively measuring the characteristic physical parameters of a porous medium, such as an aquifer that is initially recharged at a recharge rate and subsequently discharged at a...
5711373 Method for recovering a hydrocarbon liquid from a subterranean formation  
The invention disclosed herein is a method for producing oil from a reservoir after predetermining its residual oil saturation, Sorm. Such a method would displace a hydrocarbon fluid in a...
5672819 Formation evaluation using phase shift periodic pressure pulse testing  
The present invention provides an apparatus and method for determining geologic formation properties. A pressure wave is generated by a reciprocating piston transmitted to the formation by a...
5644076 Wireline formation tester supercharge correction method  
An improved formation testing method increases the accuracy of in-situ formation pressure measurements by characterizing the mudcake properties. Specifically, after a formation tester is lowered...
5501273 Method for determining the reservoir properties of a solid carbonaceous subterranean formation  
A method for determining the reservoir properties of a solid carbonaceous subterranean formation is disclosed. The method uses field data obtained from an injection/flow-back test, which utilizes...
5477922 Method of evaluating the damage to the structure of rock surrounding a well  
Method for evaluating the damage to the structure of rock surrounding a well, comprising the following steps: injection into the rock, which is already saturated with a first fluid having a first...
5458192 Method for evaluating acidizing operations  
A real-time matrix evaluation method based on the line-source solution to the radial-flow transient well testing problem. Skin factor is calculated directly from the bottomhole pressure response...
5219388 Method and apparatus for testing water permeability of concrete  
A method for measuring the water permeability in a concrete structure comprising: (a) pressure sealing a selected length of a borehole in the concrete structure, (b) injecting an aqueous medium...
5168927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation  
A method is disclosed for providing sharp breakthrough of tracers in a two-well tracer test by injecting a relatively small volume of tracer at a high rate into a temporary injection well, and...
4986120 Low-water-pressure controlled hydrologic test method  
A low-water-pressure-controlled hydrologic test using a measurement pipe containing an inner packer which is equipped with a water pressure gage at its tip is disclosed. Some water is poured into...
4961343 Method for determining permeability in hydrocarbon wells  
During oil and gas well drilling operations, at the wellsite surface the percentage by volume of hydrocarbon gas present in the return drilling fluid is monitored in order to determine the...
4936139 Down hole method for determination of formation properties  
The apparatus of the present invention relates to a down hole tool capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool...
4864845 Electronic field permeameter  
For making rapid, non-destructive permeability measurements in the field, a portable minipermeameter of the kind having a manually-operated gas injection tip is provided with a microcomputer...
4860581 Down hole tool for determination of formation properties  
The apparatus of the present invention relates to a down hole tool capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool...
4829817 Soil-percolation testing method and apparatus  
An improved method and apparatus for taking soil percolation tests. In the preferred embodiment the apparatus comprises a threaded shaft; a plurality of marking discs that can be selectively...
4742873 Subterranean flood tracer process  
A method for determining the injection source of an injection fluid which will break through at the production wells of a subterranean flooding project is disclosed in the preferred embodiment....
4742459 Method and apparatus for determining hydraulic properties of formations surrounding a borehole  
A method and apparatus are disclosed for determining hydraulic properties of formations surrounding a borehole. In one embodiment, trial values of hydraulic properties such as vertical and...
4716973 Method for evaluation of formation invasion and formation permeability  
A method is presented for evaluation of formation invasion and formation permeability by conducting a series of formation resistivity loggings in the operation of a measurement while drilling...
4559818 Thermal well-test method  
A well-test method involving injection of hot (or cold) water into a groundwater aquifer, or injecting cold water into a geothermal reservoir. By making temperature measurements at various depths...
4508169 Method for determining connate water saturation and salinity in reservoirs  
A method for determining both connate water saturation and salinity in an oil-bearing reservoir with a single invasive well test is disclosed. In this method, a fluid, miscible with the reservoir...
4495805 In-situ permeability determining method  
A method of determining the permeability of a particular stratum in an earth formation traversed by a borehole includes injecting a liquid into the borehole at a first pressure thereby causing...
4435977 Method for locating low resistivity pay sands using well logs  
A method of identifying potential low water cut hydrocarbon producing zones in a sand or sandstone formation by logging the formation to determine its permeability and porosity values and...

Matches 1 - 50 out of 92 1 2 >