Class 166/234 - Strip or rod

Subclass of Class 166 - Wells
Definition: Devices comprising elongated solid elements which provide
No. of patents: 25
Last issue date: 12/04/2007

Number	Title	Issue Date
7303078	Screen panel A method and apparatus for altering the reflectivity of a screen when light is supplied to a portion of the screen is disclosed. The orientation and shape of wires disposed on at least one bar of the screen is controlled to alter the reflectivity of the screen. Also...	12/04/2007
7278479	Downhole cable protection device A device for an underground well, typically a petroleum well (1), wherein, in the uncased inflow portion (2, 4, 6) of the well, there is placed an inflow pipe, possibly in the form of a strainer pipe (8) comprising a strainer/perforated outer ma...	10/09/2007
7108060	Fracturing different levels within a completion interval of a well Method and apparatus for fracturing different levels of a completion interval in a well. A workstring lowers a fracturing string which, in turn, is comprised of a base pipe which is blank except for perforated sections spaced along its length. Screen may be provided...	09/19/2006
7093653	Downhole filter A downhole filter comprises a tubular member having a wall defining a plurality of openings. The openings have an outer width less than an inner width. The parts of the opening defining the smaller width are defined by radially outer parts of the openings, such that...	08/22/2006
6745843	Base-pipe flow control mechanism A completion assembly for use in a lateral well bore has a base pipe with a plurality of holes through the sidewall of the base pipe. Flow through the holes is regulated to produce an influx difference between the ends of the base pipe. Flow can be regulated by vari...	06/08/2004
6675901	Use of helically wound tubular structure in the downhole environment A system that is useable in a subterranean well includes a tubular structure that is formed from a spirally wound strip, and the tubular structure is provided downhole in the subterranean well....	01/13/2004
6581689	Screen assembly and method for gravel packing an interval of a wellbore A screen assembly (60) comprises a base pipe (62) having perforated and nonperforated sections (66, 68), ribs (70) circumferentially spaced therearound and a filter medium (84) positioned around the ribs (70) having voids (92, 94) therethrough. The screen...	06/24/2003
6352111	Filter for subterranean wells A subterranean filter to remove particles from production fluid in a well includes a perforated inner member, at least one filter membrane made of a non-woven polymer material and a metal braided layer installed around the membrane and inner member to pro...	03/05/2002
6073659	Method and apparatus of removing liquid from underground cavity by directional drilling Underground cavities containing liquid contaminants are remediated by drilling directionally through the cavity and then pulling back pipe with a slotted section extending through the cavity. The pipe is supplied on reels in lengths much longer than in th...	06/13/2000
5823260	Well screen A well screen is disclosed for positioning in a well bore to screen solid particles from the fluid produced by the well comprising a base pipe, a portion of the wall of which is perforated, and having threaded connections for connecting the base pipe into...	10/20/1998
5794722	Gumbo removal The invention features an assembly for use in a system used to drill a well. The system is capable of receiving a mixture of drilling fluid (e.g., liquid mud) and gumbo from downhole of the well. The assembly has a grating having at least one opening exte...	08/18/1998
5476143	Well screen having slurry flow paths A well screen having slurry flow paths enclosed therein includes support rods extending in the axial direction of the screen disposed cylindrically at a predetermined interval in the circumferential direction of the screen, a wire wound on the outer perip...	12/19/1995
5311942	Well screen having a protective frame for a horizontal or high-angle well A well screen for a horizontal or high-angle well includes a screen main body and a protective frame. The screen main body has screen rods arranged in the circumferential direction of the well screen and a screen wire wound on the screen rods. The protect...	05/17/1994
5293935	Sintered metal substitute for prepack screen aggregate A prepack well screen assembly has a resistance welded outer screen concentrically mounted in radially spaced relation on a perforated mandrel, thereby defining an annulus in which a sintered metal prepack sleeve is loaded. The longitudinal spacing distan...	03/15/1994
5069279	Well structure having a screen element with wire supporting rods A well structure suitable for use as a shallow well having a large diameter includes a well curb, and one or more water intake segments mounted in a part of the well curb. Each water intake segments includes a frame made of a vertically arranged pair of f...	12/03/1991
5064536	Wedgewire filter and method of manufacture An improved filter of the type including closely spaced wedgewire windings defining a permanent filter media by allowing liquid flow through the gaps, in which the outer face of the wedgewire strands are ground away to eliminate the radiused corners on ea...	11/12/1991
5046892	Apertured pipe segment An apertured pipe segment is disclosed which is of injection moulded plastics construction and can be used to form a well screen or sub-soil drainage pipe. Each aperture comprises a longitudinally extending inner slot which extends from a slot mouth inwar...	09/10/1991
4657079	Screen A screen particularly suitable for use in deep well comprises a reinforcing member (2) of a generally cylindrical configuration, a plurality of support rods (3) arranged on the outside of the reinforcing member (2) in the axial direction thereof and a wir...	04/14/1987
4599172	Flow line filter apparatus An apparatus for filtering drilling mud that is being recirculated out of the drill hole. A flow conveying tubular section has at its first lower end a flanged base portion sealably attachable to the well casing or blow out preventer and is open-ended at ...	07/08/1986
4550778	Well screen A well screen is provided, for insertion into a well, for screening out sand and other particles from the well, and for connection at its upper end to a pipe for delivering water or other liquid up from the well, with the well screen having a skin with sl...	11/05/1985
4434054	Filter for separating discrete solid elements from a fluid stream A filter element which is physically capable of withstanding adverse operating conditions in a subterranean environment. The filter element comprises a durable, yet fluid pervious casing through which a particulate carrying fluid is radially passed after ...	02/28/1984
4299283	Strip structure for well screen A well screen formed of an extruded wedge shaped plastic strip wound about cylindrically disposed supporting rods in which the flexible strip is extruded of dual durometer dissimilar materials in the form of a unitary strip having complementary characteri...	11/10/1981
4133379	Foraminous screening device and method for making same A foraminous screening device comprising a cylindrically tubular body having a plurality of spaced apart apertures therethrough and including a network of helically shaped ribs. The network includes first and second rib sets both having a plurality of mut...	01/09/1979
4102395	Protected well screen The well screen assembly disclosed includes a perforated pipe joint having a well screen mounted internally of the pipe joint. The well screen includes a plurality of rods positioned parallel to and spaced from the longitudinal axis of the pipe joint with...	07/25/1978
4096911	Channel base well screen Well screen having a base made of formed channels provides the strength of a pipe base screen but weighs less, costs less, and provides greater vertical flow area. The channels are perforated and are in continuous contact around the screen with the contig...	06/27/1978

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Class 166/234 - Strip or rod