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8122954 |
Downhole depth computation methods and related system
A method for determining depth in a wellbore uses inertial navigation in conjunction with a database having one or more measured parameters correlated with depth. The measured parameter may be the...
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8109333 |
Indicator and method
An indicator comprising a band having a first radial dimension; one or more protectors having a greater radial dimension and disposed sufficiently proximate the band to substantially avoid wear of...
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8066058 |
System, method, and apparatus for breaking fracturing fluids
A method for breaking a fracturing fluid includes identifying application parameter(s) including a subterranean formation temperature, and determining an acid precursor concentration in response to...
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8020614 |
Apparatus for the decomposition of hydrogen peroxide
A method and apparatus for the decomposition of hydrogen peroxide, particularly for use as a hydrocarbon well bore and pipeline cleaning and maintenance aid. The apparatus includes a decomposition...
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8016037 |
Drilling rigs with apparatus identification systems and methods
Generally, the subject matter disclosed herein is directed to devices and methods for energizing and detecting a wave-energizable apparatus on an item movable with respect to a working surface of a...
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7963328 |
Process and apparatus for release and recovery of methane from methane hydrates
A process and system for release and recovery of methane from subterranean methane hydrate deposits in which heated CO2 is used to displace methane from the methane hydrate deposits and a portion...
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7921909 |
Method for breaking fracture fluids
A method includes identifying application parameter(s) including a subterranean formation temperature, determining a breaker particle size in response to the application parameter(s), providing a...
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7857046 |
Methods for obtaining a wellbore schematic and using same for wellbore servicing
Methods are described for determining or estimating a wellbore schematic, one embodiment comprising running one or more measured distances of coiled tubing into a wellbore while pumping a fluid at...
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7857048 |
Method for breaking fracturing fluids
A method for breaking a fracturing fluid includes identifying application parameter(s) including a subterranean formation temperature, and determining an acid precursor concentration in response to...
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7762327 |
Acoustically measuring annulus probe depth
A casing annulus is remediated by inserting a hose into a casing annulus, the hose having a nozzle on its lower end. An acoustic signal is directed into the annulus. A sensor in the hose receives...
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7610960 |
Depth correlation device for fiber optic line
A correlation system is provided to allow association of readings from a cable that is supported by a string but that is coiled around or has slack in one or many locations to a specific location...
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7600566 |
Collar locator for slick pump
A method and apparatus for actuating a downhole tool at a desired location. A reciprocating hydraulic slickline pump with a locator is provided. The pump comprises a pump member. The pump member is...
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7575053 |
Low temperature monitoring system for subsurface barriers
A system for monitoring temperature of a subsurface low temperature zone is described. The system includes a plurality of freeze wells configured to form the low temperature zone, one or more...
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7424912 |
Wellbore treatment apparatus and method
A treatment apparatus and method for wellbore instability is described including a caliper with one or more radially extending arms which are capable of extending and retracting movement in a...
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7328741 |
System for sensing riser motion
A riser monitoring assembly is provided to monitor and manage a riser extending between subsea well equipment and a floating vessel. A riser measurement instrument module is connected adjacent a...
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RE39583 |
Multiple well tool control systems in a multi-valve well testing system having automatic control modes
A multi-valve well testing system adapted to be disposed downhole in a borehole, includes a plurality of valves and a plurality of well tool control systems connected, respectively, to the...
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7201221 |
Wellbores utilizing fiber optic-based sensors and operating devices
This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about...
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7159654 |
Apparatus identification systems and methods
A member having a body, the body having two spaced-apart ends, wave energizable identification apparatus which, in one aspect, is radio frequency identification apparatus with integrated circuit...
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7055601 |
Method and system for estimating the position of a movable device in a borehole
A method is provided for estimating the position of a movable device in a borehole. The method comprises the steps of: (a) providing a prior location probability distribution associated with a...
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6953088 |
Method and system for controlling the production rate of fluid from a subterranean zone to maintain production bore stability in the zone
A system and method for controlling the production rate of fluid from a subterranean zone includes monitoring a production stream from the subsurface zone for an amount of particulate matter. The...
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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...
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6883606 |
Differential pressure controller
In a production system for producing oil or gas from a well, the production system including a plunger in well tubing, and a motor valve in a sales line connected to a plunger lubricator which...
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6802375 |
Method for plugging a well with a resin
A method for carrying out well construction, repair and abandonment operations, the method involves introducing a resin into a well and curing the same to form a seal, plug or connection, wherein...
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6715551 |
Apparatus and methods for applying time lapse VSP to monitor a reservoir
Subterranean reservoir monitoring method, computer system with programming code for implementing the method, and computer readable media and data signal embodying such programming code, the method...
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6644403 |
Method and device for the measuring physical parameters in a production shaft of a deposit of underground fluid storage reservoir
An operating well of a fluid storage reserve, includes an outer wall delimiting, with a central operating tubing of the well, an annular space in which is placed a protective sheath of an...
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6640896 |
Mechanical oil recovery method and system with a sucker rod pump
This invention relates to a mechanical oil recovery method and system with a sucker-rod pump. The method calculates the lowest power loss or the lowest cost. The method comprises sequentially...
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6634426 |
Determination of plunger location and well performance parameters in a borehole plunger lift system
Plunger lift operations are difficult to optimize due to lack of knowledge of tubing pressure, casing pressure, bottom-hole pressure, liquid accumulation in the tubing and location of the plunger....
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6585042 |
Cementing plug location system
An apparatus for locating cement plugs and other devices downhole in a wellbore. A cement plug is moved downhole into a wellbore through a casing, and a transmitter sends a signal to a receiver. A...
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6540021 |
Method for detecting inflow of fluid in a well while drilling and implementing device
A method for detecting inflow of fluid in a well while drilling, wherein the drilling is carried out using an installation including a hollow cylindrical drill string (3) wherein is injected fresh...
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6536519 |
Downhole tool to generate tension pulses on a slickline
A downhole tool that is connectable to a line to be run downhole with the tool includes a housing, a sensor and a mechanism that is located inside the housing. The mechanism is coupled to the...
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6508310 |
Bladder-type sampling pump controller
A method for using a controller to control a fluid pump by controlling the rate at which the pump fills with fluid and subsequently discharges fluid. The pump includes a chamber for collecting...
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6371206 |
Prevention of sand plugging of oil well pumps
A method and apparatus for unblocking particulate plugs that develop in a well that produces fluid laden with suspended particles when a pump in the well is idled are described. In order to remove...
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6343656 |
System and method for optimizing production from a rod-pumping system
A method for optimizing production from a rod-pumping system includes the steps of providing a well having a rod-pumping system for pumping a fluid from a downhole location of the well to a surface...
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6305467 |
Wireless coiled tubing joint locator
A wireless coiled tubing joint locator for locating joints or collars in a production tubing string. An electromagnetic coil assembly or giant magnetoresistive digital field sensor senses the...
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6269882 |
Method for ignition of flameless combustor
A combustor method and apparatus is provided. The method utilizes flameless combustion with one or more of three improvements to enhance ignition of the flameless combustor. A catalytic surface can...
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6253849 |
Method of distinguishing the raising and lowering of tubing and sucker rods
A self-contained mobile repair unit for repairing wells includes the hydraulic and pneumatic tooling required to do a variety of jobs including the installation and removal of an inner pipe string,...
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6218959 |
Fail safe downhole signal repeater
A system and method of fail safe communication of information between surface equipment and downhole equipment are disclosed. The system comprises two or more repeaters (34, 35, 36) disposed within...
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6216782 |
Apparatus and method for verification of monophasic samples
A formation fluid sampling apparatus (40) for verification of monophasic samples is disclosed. The apparatus (40) comprises a housing (42) having a sampling chamber (48) and a sampling port (50)...
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6213207 |
Method of distinguishing between installing different sucker rods
A self-contained mobile repair unit for repairing wells includes the hydraulic and pneumatic tooling required to do a variety of jobs including the installation and removal of an inner pipe string,...
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6206093 |
System for pumping viscous fluid from a well
A system allows the pumping of viscous fluids from a wellbore. The system includes a submergible pump and a pump intake through which a fluid may be drawn. A submergible electric motor powers the...
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6182756 |
Method and apparatus for optimizing production from a gas lift well
A method for optimizing production from a gas lift well includes the steps of: obtaining a statistical model of production behavior of a gas lift well, the production behavior including known...
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6176313 |
Method and tool for fracturing an underground formation
A method for fracturing an underground formation surrounding an oil and/or gas well comprises positioning a fracturing tool in a selected orientation in the borehole and expanding the tool such...
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6102122 |
Control of heat injection based on temperature and in-situ stress measurement
The invention is a method to operate a heat injection well, the method comprising the steps of: providing a heat injection well comprising a metal casing and a controllable source of heat within...
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6006832 |
Method and system for monitoring and controlling production and injection wells having permanent downhole formation evaluation sensors
A system and method for monitoring a formation surrounding a borehole in a production well. The method encompasses the use of a downhole sensor permanently mounted in the well to sense at least one...
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5942990 |
Electromagnetic signal repeater and method for use of same
A downhole electromagnetic signal repeater (76) for communicating information between surface equipment and downhole equipment and a method for use of the repeater (76) is disclosed. The repeater...
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5927401 |
Method and apparatus for remote control of multilateral wells
A method and apparatus for selectively producing fluids from multiple lateral wellbores that extend from a central wellbore. The apparatus comprises a fluid flow assembly with a selectively...
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5901788 |
Well fluid sampling tool and well fluid sampling method
A well fluid sampling tool and method for retrieving reservoir fluid samples from deep wells. The sampling tool is lowered to the required depth, an internal sample chamber is opened to admit well...
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5871048 |
Determining an optimum gas injection rate for a gas-lift well
A method is provided for automatically determining an optimum gas injection rate for a gas-lifted oil well. The optimum gas-lift slope for the oil well is initially provided and stored in the...
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5740860 |
Side pocket mandrel for a measuring instrument
A side pocket mandrel arranged to receive a measuring instrument such as a pressure gauge in the open-bottomed side pocket thereof includes an electrical contact mounted at the top of the side...
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5730219 |
Production wells having permanent downhole formation evaluation sensors
A downhole control system for a production well is associated with permanent downhole formation evaluation sensors which remain downhole throughout production operations. These formation evaluation...
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