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7624806 |
Pipe cleaning tool and method
A method of cleaning a pipe provides a tool within the pipe. The tool has a body of smaller diameter than the pipe such that the body and pipe define an annulus and a fluid guiding member located...
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7598208 |
Filter cake degradation compositions and methods of use in subterranean operations
The present invention relates to methods and compositions for degrading filter cakes in subterranean formations, and more specifically, to improved methods and compositions for degrading filter...
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7578968 |
Microbiological control in oil or gas field operations
Processes for effecting biocidal activity in subterranean oil and gas wells being drilled, completed, worked over or produced are described. In general the process comprises blending with aqueous...
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7571768 |
Method and apparatus for perforating a casing and producing hydrocarbons
A perforating gun and one or more volume-receiving surge canisters can be actuated at a time delay after perforation for creating a dynamic underbalance condition to aid in directing debris out of...
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7571766 |
Methods of fracturing a subterranean formation using a jetting tool and a viscoelastic surfactant fluid to minimize formation damage
A method of fracturing a production interval of a subterranean formation adjacent a wellbore that is open hole or has an uncemented liner is provided. The method comprises the steps of: (a)...
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7559374 |
Dual function cleaning tool
A cleaning tool and method of cleaning a liner top in a well bore. The tool includes cleaning elements, typically scrapers, which are arranged eccentrically to an axial bore through the tool. The...
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7549477 |
System and method for unloading water from gas wells
A system, apparatus and method are useful for lifting water in a gas-producing wellbore through the application of a differential between pressure of the gas in the wellbore's gas-production...
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7546878 |
Chemical deployment canisters for downhole use
An apparatus for deployment of a reagent downhole includes a housing configured to move in a borehole; a chamber for storing the reagent, wherein the chamber is disposed in the housing and has one...
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7534745 |
Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic acid ester or an organophosphinic acid and methods of use and manufacture
The present invention relates to emulsion compositions and associated methods. More particularly, the present invention relates to gelled invert emulsion compositions and their associated methods...
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7533726 |
Method of increasing gas well production
A method of increasing the production of a formation gas from a well bore penetrating a gas producing formation wherein the formation gas has a water content that results in the formation of...
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7527103 |
Procedures and compositions for reservoir protection
A flow conduit having at least one orifice is placed in the vicinity of a flow source, which in one non-limiting embodiment may be a hydrocarbon reservoir. The flow pathway between the orifice and...
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7513299 |
Magnetic tool for retrieving metal objects from a well bore when using coil tubing
A magnetic tool for retrieval of metal debris from a well bore particularly adapted for use in coil tubing systems. The tool has a cylindrical body and a plurality of separate magnet assemblies...
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7451813 |
System and method for bleeding off pressure following servicing a well
A technique facilitates release of pressure from a well, and/or surface treating lines, via a bleed-off mechanism. The bleed-off mechanism is in fluid communication with a flow path extending from...
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7451819 |
Openhole perforating
An underbalanced perforating system is disclosed for use in openhole completions to maximize the wellbore and matrix cleanup efficiency, to connect natural fracture patterns, and/or to enable...
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7409995 |
Apparatus and method for washing tubular conduits during trip out of a conduit string from within a subterranean well
An apparatus for washing undesirable matter off of the exterior of tubular conduits forming a conduit string during trip out of the conduit string within a subterranean well. The tubular conduits...
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7395865 |
Gas lift plunger arrangement
A plunger in a plunger lift system in an oil and gas well includes shaped grooves spaced along the plunger body, angled fins or below the grooves, an elongated interior cavity open at the bottom,...
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7380597 |
Deployment of underground sensors
A method of installing a sensor located in a chamber on the out-side of a casing, comprising the steps of positioning the casing in a well, cementing the casing in position, positioning a drilling...
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7377283 |
Coiled tubing wellbore cleanout
A method and apparatus for substantially cleaning fill from a borehole is described variously including running a coiled tubing assembly into the wellbore, creating a fluid vortex by circulating...
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7371289 |
Cleaning and doping of tubulars
Apparatus for cleaning and doping a pin 2 of a tubular 3 during the making or breaking of a string on a well platform. The apparatus comprises a housing 4 having first and second conosed ends...
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7360998 |
Method of cleaning out blockages which prevent operation of a reciprocating downhole tubing pump
A method of cleaning out blockages which prevent operation of a reciprocating downhole tubing pump. A first step involves mechanically displacing and disabling, without removing, a ball from a ball...
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7347259 |
Downhole oilfield erosion protection by using diamond
A device for use with components for a downhole tool—such as a throat, a nozzle, or a diffuser—used for cleaning a wellbore, are disclosed which decreases the erosion of the components. The...
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7316268 |
Method for conditioning wellbore fluids and sucker rod therefore
Invention refers to a method for conditioning wellbore fluids and to a sucker rod to accomplish the method used in the field of petroleum production. The method the invention refers to involves...
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7314083 |
Slow rotation fluid jetting tool for cleaning a well bore
A rotary jetting tool for connection to a hollow, fluid conducting workover string has a main tool body with a hollow central passageway and a rotatable jet carrier mounted on a depending central...
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7311150 |
Method and system for cleaning a well bore
A method for extracting accumulated material from a well bore includes pressurizing gas recovered from the well bore and disposing an extraction string in communication with a sump. The sump is...
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7306038 |
Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life
The Invention is a Well Cleaning Method and Apparatus using detonating cord having Additional Reliability and a Longer Shelf Life. The method and apparatus employs one or more subassemblies, each...
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7284612 |
Controlling transient pressure conditions in a wellbore
A method and apparatus for use in a wellbore includes running a tool string to an interval of the wellbore, and activating a first component in the tool string to create a transient underbalance...
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7279052 |
Method for hydrate plug removal
A method for removal of deposits such as hydrate plugs from a pipeline is provided including inserting a thruster pig connected to a return flow line into the pipeline The pig is then advanced...
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7273832 |
Alkali metal tungstate compositions and uses thereof
Fluids, such as completion fluids, containing at least one alkali metal tungstate and optionally at least one chelating agent are described. Methods of removing a filter cake from a well bore...
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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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7267169 |
Methods for forming a permeable and stable mass in a subterranean formation
This invention relates to subterranean treatment operations. More particularly, this invention provides methods that may be useful in providing void-free barriers between a subterranean formation...
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7252096 |
Methods of simultaneously cleaning and disinfecting industrial water systems
On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water...
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7213648 |
Pressure-actuated perforation with continuous removal of debris
Openings are created between a wellbore and a formation by firing a perforating gun adjacent a perforating zone in the formation and debris is removed. A tubing string extending to the formation is...
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7210529 |
Casing brush tool
A casing brush tool for cleaning interior walls of a well bore casing. The brush tool has a free rotating sleeve mounted on a mandrel with bearings mounted between the sleeve and the mandrel to...
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7198106 |
Method for enhancing gas well secondary recovery operations
The present invention relates to a process and system for the remediation and enhancement of secondary recovery gas from a natural gas well and geologic formation. The present invention employs the...
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7191835 |
Disengagable burr mill
A downhole tool for use in the removal of burrs or other unwanted material from an inner surface of a pipeline, well casing or other tubular. The tool has a plurality of milling elements, which may...
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7188675 |
Finger boot basket
A boot basket for retrieving debris from a well bore, and a method for retrieving debris from said well bore. The boot basket includes a mandrel having an internal wall and an external wall. The...
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7186673 |
Stability enhanced water-in-oil emulsion and method for using same
A method for enhancing the stability of a water-in-oil emulsion pretreating at least a portion of the oil prior to emulsification. The pretreatment step may consist of adding polymers to the oil,...
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7182138 |
Reservoir communication by creating a local underbalance and using treatment fluid
A method and apparatus for improving reservoir communication includes, in one arrangement, causing creation of tunnels in surrounding formation of a well interval, and applying treatment fluid to...
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7178593 |
Piggable separation system and method
An inline well fluid separator is movable for pigging operations. The separator assembly has a housing with an inlet port and an outlet port. A separation unit is carried within the housing. The...
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7121343 |
Selectively operational cleaning tool
A downhole cleaning tool ( 10 ) for oil and gas wells. Brushes, scraper, wipers ( 32 ) and the like are mounted on a sleeve ( 14 ) over a tubular body ( 12 ), and the members successively moved...
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7104323 |
Spiral tubular tool and method
An expandable device for use in tubulars. The device comprises an outer tubular having a series of slots therein, with the slots being arranged about the exterior of the outer tubular. The device...
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7096950 |
Combined milling and scraping tool
A downhole tool ( 1 ) for providing the dual role of cleaning and milling within a wellbore casing or liner is described. In an embodiment scraper blades ( 6 ) are mounted on a body ( 2 ) together...
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7086470 |
System and method for wellbore clearing
In accordance with one embodiment, a method is provided for clearing the inside of a wellbore including inserting a wellbore clearing system into the wellbore. The wellbore clearing system includes...
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RE39209 |
Production fluid control device and method for oil and/or gas wells
A device and method for selectively controlling the flow of production fluid through a tubing string in an oil and gas well according to which a housing is connected to a tubing string for...
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7081438 |
Drilling fluids, drilling fluids additives and methods useful for limiting tar sands accretion on metal surfaces
Fluids useful in oil well drilling operations are described. The fluids comprise standard viscosifying and fluid loss control additives along with phosphonates or phosphate esters of organic...
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7059411 |
Process of using a propellant treatment and continuous foam removal of well debris and apparatus therefore
A damaged formation is stimulated by igniting a propellant adjacent openings in the wellbore in communication with the damaged formation. Substantially immediately thereafter, low density foam is...
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7048055 |
Packer with integral cleaning device
The present invention generally relates to methods and apparatus for sealing a tubular. In one embodiment, the apparatus includes a packer having a body, a sealing element, and a cleaning device...
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7032674 |
Process for increasing flow capacity of gas wells
The removal of liquids from the reservoir and/or the fracture-proppant pack of gas wells is described. Water that is trapped by capillary and viscous forces in areas of low velocity are mobilized...
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7028769 |
Well bore cleaning and tubular circulating and flow-back apparatus
Several well bore clean-out apparatus' are disclosed that provides a method of cleaning a well bore while the apparatus' are being deployed into a well forcing well bore fluid into a work string...
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7025142 |
Bi-directional thruster pig apparatus and method of utilizing same
A retrievable pig apparatus having a substantially cylindrical body portion, the body portion having a central flow bore therethrough, and secured to coiled tubing, including a central fluid flow...
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