|
Match
|
Document |
Document Title |
|
|
8167051 |
Selective agitation
A fluid actuated downhole tool for inducing movement of a downhole apparatus is described. The tool comprises a body for coupling to downhole apparatus, the body being adapted to accommodate now of...
|
|
|
8162078 |
Vibrating downhole tool
Disclosed is an apparatus for vibrating a downhole drill string operable to have a drilling fluid pumped therethrough. The apparatus comprises a tubular body securable to the drill string and...
|
|
|
8122956 |
Magnetic stirrer
A sample tank for receiving and storing sampled connate fluid from a subterranean geological formation. The sample tank includes a piston coaxially disposed within the tank. The piston can be...
|
|
|
8113285 |
Agitated wellbore cleaning tool and method
A wellbore cleaning assembly is run into a wellbore to be cleaned on a work string. The cleaning assembly comprises a number of cleaning elements for cleaning a wall of the wellbore; and an...
|
|
|
7975765 |
Enclosed circulation tool for a well
An enclosed circulation tool for a well including a tubular body having a top end, a bottom end and an interior cavity. A progressive cavity pump positioned at the bottom end of the body, the pump...
|
|
|
7455113 |
Downhole impeller device
A downhole impeller device for use within a well, comprising: a body connectable to a drill string and having an external diameter smaller than the well diameter so as to form an annulus between...
|
|
|
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...
|
|
|
7293608 |
Liquid well stimulator
A stimulator device and associated method is provided for a subterranean liquid well comprising a pump adapted for selectively evacuating vapor from the borehole of the well above a liquid column...
|
|
|
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...
|
|
|
7063141 |
Apparatus for agitated fluid discharge
The pressure reading tool includes a housing with an interior chamber and an orifice extending from the chamber to the exterior of the housing. A pulse member with a magnetostrictive ring and an...
|
|
|
7011158 |
Method and apparatus for well bore cleaning
Apparatus connected to the downhole end of a tubing string for cleaning and flushing wells has a threaded connection to the string and at least one primary jet to direct circulating gases toward...
|
|
|
6959760 |
Downhole pulser
A power generator for use in a wellbore formed in an earth formation, including an internal combustion engine having a cylinder and a piston defining a combustion chamber in the cylinder, the...
|
|
|
6877566 |
Method and apparatus for causing pressure variations in a wellbore
A method and apparatus for causing pressure variations in a wellbore. A valve mechanism and a sealing device are provided in the wellbore. The valve mechanism is part of a valve device which may be...
|
|
|
6863125 |
Device for flow and liftgas production of oil-wells (versions)
The proposed device for operation of free flowing and gas lift oil wells relates to production of gas-liquid mixtures, and particularly of gasified oil, and can be used in wells if either the...
|
|
|
6705396 |
Method and apparatus for producing fluid cavitation
A method and apparatus for producing fluid cavitation is provided. For a given channel cross-section of a pressure line, the flow is accelerated so as to reach a speed at which Re>Recr, where Re is...
|
|
|
6619394 |
Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom
A process and apparatus for treating a wellbore, comprising subjecting a substantially same portion of the wellbore to vibratory waves produced by a plurality of vibratory wave generators. The...
|
|
|
6533035 |
Method and apparatus for stimulating well production
A method and apparatus for enhancing the production of newly developed water wells and existing wells that have suffered a reduction in capacity due to plugging. A gas line directs gas under...
|
|
|
6260628 |
Use of static mixing element in connection with flow of gas and liquids through a production tubing
|
|
|
6250386 |
Process for stimulation of oil wells
|
|
|
6230802 |
Method and apparatus for gravel packing a well
An apparatus for use in gravel packing a well includes a tool body adapted to be lowered into the well, a screen coupled to the tool body, and a resilient member coupled to the screen. The...
|
|
|
6116338 |
Inducer for increasing centrifugal pump efficiency in wells producing high viscosity crude oil
An device for use down-hole in an oil well for inducing heavy crude oil to flow into the inlet of a centrifugal pump by creating a positive pressure on the bottom inlet of the pump. The device...
|
|
|
5285847 |
Water and ground water monitoring well surge block
The invention is a water well surge block for agitation of particles in water wells. The surge block utilizes a novel one way valve comprising a shaft in connection with a rigid perforated cylinder...
|
|
|
5209293 |
Apparatus for fluidizing formation fines entrained in formation fluids entering a production well penetrating an oil-bearing formation
A production well penetrating a subsurface oil-bearing formation utilizes perforations in well casing through which formation fluids enter the well. Production tubing extends from the surface of...
|
|
|
5190114 |
Flow pulsing apparatus for drill string
This invention relates to flow pulsing methods and apparatus for various applications including downhole drilling equipment and in particular to an improved flow pulsing method and apparatus of...
|
|
|
5009272 |
Flow pulsing method and apparatus for drill string
This invention relates to flow pulsing methods and apparatus for various applications including downhole drilling equipment and in particular to an improved flow pulsing method and apparatus of...
|
|
|
4964464 |
Anti-sand bridge tool and method for dislodging sand bridges
An anti-sand bridge tool for dislodging a sand bridge between a liner wall and a casing wall of a gravel packed well completion. The tool comprises a tubular sub pipe having a first end and a...
|
|
|
3583677 |
ELECTRO-MECHANICAL TRANSDUCER FOR SECONDARY OIL RECOVERY
An electromechanical transducer for use in secondary recovery in oil wells which, in effect, produces a dipole-type radiation field of increased magnitude which extends along a single axis...
|
|
|
3372755 |
Apparatus for well flow stimulation
|
|
|
3113621 |
Subterranean well treatments using a vibrational field
|
|
|
3062290 |
Apparatus for periodically back flushing a well
|
|
|
2915128 |
Well developer
|
|
|
2825411 |
Circulating swabs for wells
|