Class 166/105.3 - Sediment trap formed in pumping chamber

Subclass of Class 166 - Wells
Definition: Devices in which the sediment collecting means is formed
No. of patents: 23
Last issue date: 02/07/2012

Number	Title	Issue Date
8109331	Slickline conveyed debris management system A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid ...	02/07/2012
8056622	Slickline conveyed debris management system A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid ...	11/15/2011
7891419	Downhole well cleaning tool A downhole well cleaning tool adapted for connection between upper and lower sections of an elongate string includes a pump barrel having at least one fluid outlet proximate its upper end. A swab assembly is connected to a pump mandrel for reciprocation within the p...	02/22/2011
7428923	Top plunger adapter There is provided a top plunger adapter assembly for use in controlling sand fouling of an oil pump system wherein the oil pump system reciprocates between upstrokes and downstrokes within a barrel, and wherein the oil pump system includes as components a sucker rod...	09/30/2008
7377312	Oil well pump apparatus An oil well pumping apparatus for pumping oil from a well to a wellhead provides a tool body that is sized and shaped to be lowered into the production tubing string of the oil well. A working fluid is provided that can be pumped into the production tubing. A prime ...	05/27/2008
7290607	Device for the separation of the gas phase from a mixture of fluid/gas for use in hydrocarbons producing and injection wells An apparatus for separating the gaseous phase from a mixture of fluids used during the subsurface intervention in production or injection wells. The device includes a main pipe (T) provided externally with a helix (E) having a longitudinal opening (F) whose edge (B)...	11/06/2007
7275592	Oil well pump apparatus An oil well pumping apparatus for pumping oil from a well to a wellhead provides a tool body that is sized and shaped to be lowered into the production tubing string of the oil well. A working fluid is provided that can be pumped into the production tubing. A prime ...	10/02/2007
6719050	Method and apparatus for removing solid material from a well using a rotary pump A tool for removing solid particles from a well after sand fracturing, drilling, etc. The tool includes a flapper valve assembly above a drill bit, a sand screen, and a screw pump. Fluid in the well, with the solid particles therein, is pumped into the tool by rotat...	04/13/2004
6619390	Particle separator for a fluid pump intake A particle separator for a fluid pump has a cylindrical body which is attachable to a pump by a flexible sleeve and has tangential slots directing intake fluid in swirling manner about an inlet tube within the cylindrical body. The inlet has an enlarged o...	09/16/2003
6571869	Downhole surge pressure reduction and filtering apparatus The present invention provides a downhole cementing apparatus run into a borehole on a tubular. The apparatus is constructed on the pipe in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilize the fluid p...	06/03/2003
6564865	Oil and gas production with downhole separation and reinjection of gas A system for producing a mixed gas-oil stream which contains solid particulates wherein gas is to be separated and compressed downhole in a turbine-driven compressor before the gas is injected into a subterranean formation. The stream is passed through an...	05/20/2003
6412563	System and method for enhanced conditioning of well fluids circulating in and around artificial lift assemblies An artificial lift assembly is suspended from a string of conduit in a well inside a well casing. An encapsulation module is independently suspended from the conduit and encases the pump assembly with a jacket. A series of well fluid conditioning tools ar...	07/02/2002
6220347	Bore hole clearing An apparatus for removing debris from a bore hole, comprising a housing, and a cylindrical electric motor coupled coaxially to a direct drive pump. The housing includes a debris entry port into which the debris is induced to flow into the housing, and the...	04/24/2001
5810081	Wear structure for bore hole separation device A separation device or desander (18) is positioned in a bore hole for separation of solid particles from well fluids and includes outer and inner concentric members (20 and 22) defining an annulus (30) therebetween. A spiral guide (32) is positioned in an...	09/22/1998
5474601	Integrated floating platform vertical annular separation and pumping system for production of hydrocarbons A VASPS (vertical annular separation and pumping system) is integral with a floating production vessel such as a TLP. The head section of the VASPS is located at the deck level of the vessel. The tail section is located at or near the bottom of the body o...	12/12/1995
5295537	Sand separating, producing-well accessory A sand separator is used in a well from which particulate bearing liquids are extracted into tubing for transport up the tubing. The separator causes the fluid bearing particulate matter to be accelerated. This acceleration in turn causes the particulate ...	03/22/1994
5139089	Well cleanout tool and method A cleanout tool for removing debris from a deep borehole, the borehole being characterized by having a relatively low hydrostatic head or level of liquid in the borehole. A series of unique check valves acting in cooperation with a pumping section are use...	08/18/1992
5119874	Swab cup and swab assembly A swab assembly for use within a pump barrel includes a longitudinal swab bypass mandrel which has a top end connectable to a reciprocating member and at least one longitudinal bypass channel on its circumference and axially spaced stop shoulders at each ...	06/09/1992
4940092	Well clean out tool A well clean out tool installed in a drill string is operable to pump sand and debris from the well bore. A pump portion includes an elongate pump barrel having apertures extending through its side wall at the upper end which is attached at its bottom end...	07/10/1990
4769156	Method and means to pump a well Method and means to pump a well with a hydraulically-driven downhole pump (15) as powered by a hydraulic surface unit (1) are disclosed, including a downhole filter assembly (71) and a flowline mounted oil leach (27) for supplying makeup oil to the surfac...	09/06/1988
4721156	Well clean out apparatus A well clean out apparatus of the reciprocating pump, recirculating, type has two debris entrapment chambers below and one fluid chamber above the pump. The pump piston has a stack of flat washers to function as piston packing. The washers are axially and...	01/26/1988
4515532	Single action pneumatic powered spring retractable pump A downhole reciprocating piston pump is driven pneumatically from a surface facility for producing formation fluid from a well bore. The pump is cycled automatically without the use of electrical controls or components. A piston is received within a pump ...	05/07/1985
3973630	Wash-out tool and method of use thereof A standing valve wash-out tool comprises: A. a vertically elongated tubular body, B. elastomer cup means on the body to engage a well tubing bore as the body travels lengthwise within said bore in response to fluid pressure exertion on the cup means exteriorly...	08/10/1976

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Class 166/105.3 - Sediment trap formed in pumping chamber