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7281577 |
Downhole measurement system and method
One aspect of the present invention is a system and method to measure a pressure or other measurement at a source (e.g. a hydraulic power supply) and in or near a downhole tool and compare the...
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7270179 |
Method for stimulation of liquid flow in a well
An improved method of controlled energy delivery utilizing solid, liquid, and gaseous carbon dioxide (CO 2 ) into a water well and the surrounding aquifer to remove deposited material which may...
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7234517 |
System and method for sensing load on a downhole tool
A system and method for determining load on a downhole tool according to which one or more sensors are embedded in one or more components of the tool or in a material on one or more of the...
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7231972 |
Integral flush gauge cable apparatus and method
The present invention includes a communications system to measure and transmit date from a zone of interest below a downhole assembly to a remote location. The communications system preferably...
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7216703 |
Method and apparatus for testing and treatment of a completed well with production tubing in place
A method and apparatus is used to test and/or treat individual production zones of a well in conjunction with a conventional coiled tubing unit. This method and apparatus allows testing and...
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7201226 |
Downhole measurement system and method
A system and method measures a pressure or other measurement at a source (e.g. a hydraulic power supply) and in or near a downhole tool and compares the measurements to verify that, for example,...
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7178591 |
Apparatus and method for formation evaluation
Techniques for reduced contamination formation evaluation are provided. The techniques relate to drawing fluid into a downhole tool positionable in a wellbore penetrating a subterranean formation...
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7108067 |
Method and apparatus for wellbore fluid treatment
A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing...
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7096976 |
Drilling formation tester, apparatus and methods of testing and monitoring status of tester
An integrated drilling and evaluation system includes a drill string having an interior portion and a drill bit, carried on a lower end, that includes ports for communicating fluid between the...
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7093674 |
Drilling formation tester, apparatus and methods of testing and monitoring status of tester
An integrated drilling and evaluation system includes a drill string having an interior portion and a drill bit, carried on a lower end, that includes ports for communicating fluid between the...
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7083009 |
Pressure controlled fluid sampling apparatus and method
A formation fluid sampling tool including at least one sample tank mounted in a tool collar. The tool collar includes a through bore and is disposed to be operatively coupled with a drill string...
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7073580 |
Inflation tool with real-time temperature and pressure probes
Embodiments of the present invention generally provide a method, apparatus, and system for monitoring conditions in wellbore in real time prior to setting an inflatable element in the wellbore. The...
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7040402 |
Instrumented packer
A technique that is usable with a subterranean well includes communicating a fluid into a region of the well and monitoring a level of the fluid communicated via a downhole sensor. The...
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7021375 |
Methods of downhole testing subterranean formations and associated apparatus therefor
Methods and apparatus are provided which permit well testing operations to be performed downhole in a subterranean well. In various described methods, fluids flowed from a formation during a test...
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7000697 |
Downhole measurement apparatus and technique
A system that is usable with a subterranean well that has a casing includes an apparatus that is associated with production of fluid from the well and is located downhole in the well in a...
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6995683 |
System and method for transmitting downhole data to the surface
A system and method are disclosed that provide for transmitting data from a downhole location to the surface. In one embodiment, a communications medium provides data transfer capabilities to the...
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6964301 |
Method and apparatus for subsurface fluid sampling
The apparatuses and methods herein relate to techniques for extracting fluid from a subsurface formation. A downhole sampling tool is provided with a probe having an internal wall capable of...
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6959763 |
Method and apparatus for integrated horizontal selective testing of wells
Integrated horizontal selective testing of production flow from individual perforations or individual lateral branches of a highly deviated or horizontal multilateral branch well is accomplished by...
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6959762 |
Method and apparatus for formation damage removal
A method for evaluating the permeability and formation damage in the porous rock around a well bore. This method relates to the use of a single string coiled tubing and a down hole assembly which...
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6924745 |
System and method for monitoring packer slippage
A system and method for monitoring a device in a well, according to which a sensor associated with the device monitors any movement of the device in the well and outputs a corresponding signal. The...
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6896074 |
System and method for installation and use of devices in microboreholes
The present invention provides methods and systems for making measurements associated with a rock formation including a main borehole, a microborehole extending from the main borehole into the rock...
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6896064 |
Compression set packer and method of use
A downhole packer for providing a seal in a well bore to allow integrity testing of the well bore. The packer is set by a sleeve movable on a body of the packer being set down on a formation in the...
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6886631 |
Inflation tool with real-time temperature and pressure probes
Embodiments of the present invention generally provide a method, apparatus, and system for monitoring conditions in wellbore in real time prior to setting an inflatable element in the wellbore. The...
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6782946 |
Method and apparatus for injecting one or more fluids into a borehole
A method and an apparatus for injecting a fluid into a borehole. The method includes the step of injecting an injection fluid into a primary injection zone in a borehole at an injection fluid...
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6763883 |
Method and apparatus for improved communication in a wellbore utilizing acoustic signals
A method and apparatus for acoustically actuating wellbore tools using two-way acoustic communication is disclosed.
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6745834 |
Complete trip system
The present invention discloses apparatus and methods for perforating, completing, testing, and abandoning a wellbore in a single trip. One embodiment of the invention is a method that comprises...
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6729399 |
Method and apparatus for determining reservoir characteristics
A downhole tool for collecting data from a subsurface formation is disclosed. The tool is provided with a probe for testing and/or sampling an adjacent formation. The tool is also provided with a...
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6712141 |
Method and apparatus for deployment, mounting and coupling of downhole geophones
A method and apparatus for placing acoustic devices in wellbores. The method comprises: providing a tubing with at least one anchoring device in the wellbore, where the anchoring device is...
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6684950 |
System for pressure testing tubing
A system and method is provided for pressure testing a tubing string. A valve is utilized within the tubing string to enable selective application of pressure in the tubing above the valve....
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6655458 |
Formation testing instrument having extensible housing
A well logging instrument is disclosed which includes a housing operatively coupled to a well logging conveyance and movable within the wellbore. The housing has therein a formation testing system...
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6655457 |
Method for use in sampling and/or measuring in reservoir fluid
The invention relates to a method for use in sampling, flow measuring, quantity gauging, or possibly other analysis performed in reservoir fluid found in a ground formation. An object of the...
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6609568 |
Closed-loop drawdown apparatus and method for in-situ analysis of formation fluids
An apparatus and method capable of incrementally decreasing the borehole pressure at a variable rate by controlling a test volume within the borehole. The system includes an incrementally...
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6604581 |
Fluid property sensors and associated methods of calibrating sensors in a subterranean well
Fluid property sensors and associated methods of calibrating sensors in a well provide enhanced well monitoring and control. In one described embodiment, an external venturi flowmeter is utilized...
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6588505 |
Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation
A system of downhole communication and control is provided in methods and associated apparatus for data retrieval, monitoring and tool actuation. In a described embodiment, an item of equipment...
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6585045 |
Formation testing while drilling apparatus with axially and spirally mounted ports
An apparatus and method for determining permeability of a subterranean formation is provided. The apparatus and method comprise a work string, at least one selectively extendable member mounted on...
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6575242 |
Method and an apparatus for use in production tests, testing an expected permeable formation
When production testing a permeable first formation, fluid flowing out from the first formation is subjected to a pressure measurement and a flow rate control. In order to avoid bringing up the...
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6530428 |
Method and apparatus for in-situ production well testing
An apparatus for in situ borehole testing having a drill string with drill pipe and drill bit. An upper sleeve and lower sleeve are telescopically coupled together. A valve seat is located in an...
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6491104 |
Open-hole test method and apparatus for subterranean wells
The invention comprises a tubing assembly for use in testing an unconsolidated open-hole portion of a well bore located below a cased portion of the well bore and a method of using the assembly....
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6478086 |
Method for installing a sensor in connection with plugging a well
A method for plugging wells for use in connection with extraction of a fluid. Above a leakage site in the well, from which the fluid flows into the well from a subsurface formation surrounding the...
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6450258 |
Method and apparatus for improved communication in a wellbore utilizing acoustic signals
A method and apparatus for acoustically actuating wellbore tools using two-way acoustic communication is disclosed.
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6446720 |
Methods of downhole testing subterranean formations and associated apparatus therefor
Methods and apparatus are provided which permit well testing operations to be performed downhole in a subterranean well. In various described methods, fluids flowed from a formation during a test...
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6419013 |
Well logging method & apparatus
A method of well logging in which the logging tool is delivered to the bottom of the well within a drill pipe and then the well is logged by withdrawing the drill pipe with the sensor portion of...
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6415864 |
System and method for separately producing water and oil from a reservoir
A system for reservoir control. The system allows segregated production of fluids, e.g. water and oil, to control the fluid-fluid interface. Downhole sensors are utilized in providing data about...
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6386285 |
Flow identification system
A system for determining a characteristic of a stream of gas flowing through a branch wellbore of a multilateral wellbore system including a main wellbore extending from surface into the earth...
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6367545 |
Electronically controlled electric wireline setting tool
An electric wireline setting tool includes a controller and a plurality of sensors sensing pressure, temperature, flow rate, current, etc. The controller communicates with the surface and or makes...
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6347666 |
Method and apparatus for continuously testing a well
One embodiment of my invention comprises a tool string for testing a wellbore formation that includes a production inlet, an injection outlet, and a sampler apparatus. Fluid is taken from a...
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6343650 |
Test, drill and pull system and method of testing and drilling a well
A test, drill and pull system for testing a well formation or zone of interest and further drilling of the well in a single trip into the wellbore. The system includes a surface readout tester...
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6328103 |
Methods and apparatus for downhole completion cleanup
A method of performing a downhole well completion cleanup is provided. In a described embodiment, completion fluids from a first zone are flowed into a tubular string, and then the fluids are...
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6325146 |
Methods of downhole testing subterranean formations and associated apparatus therefor
Methods and apparatus are provided which permit well testing operations to be performed downhole in a subterranean well. In various described methods, fluids flowed from a formation during a test...
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6315041 |
Multi-zone isolation tool and method of stimulating and testing a subterranean well
A tool for isolating segments of a wellbore. The tool includes a packing cup housed in a protective sheath during the insertion of the device into the wellbore. The packing cup is radially outward...
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