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Patent No. 6711769

Pillow with retractable umbrella

A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.

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Class 166/155 - With downflow past piston


Subclass of Class 166 - Wells
Definition: Devices which are so constructed that fluid may flow downwardly
No. of patents: 74
Last issue date: 02/03/2009


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NumberTitleIssue Date
7484559Method for drilling and casing a wellbore with a pump down cement float
A cement float collar is disclosed that can be positioned downhole and used in a wellbore completion operation after drilling a well-bore with casing. A wellbore drilling and completion method is also disclosed. The cement float collar is made for pumping downhole a...
02/03/2009
7350578Diverter plugs for use in well bores and associated methods of use
Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a...
04/01/2008
7322432Fluid diverter tool and method
The present invention relates to a diverter tool used in a pipe string used to lower a liner and a cutting apparatus on the end thereof into a partially cased wellbore. The diverter tool has a diverter body that defines a longitudinal flow passage and has the divert...
01/29/2008
7275592Oil 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
7275595Method and apparatus to isolate fluids during gravel pack operations
The present invention provides for an apparatus and method to displace fluids and to prevent the mixing or bypassing of fluids used in gravel pack operations. A moveable plug is used to create a physical partition between fluids. ...
10/02/2007
7252142Annular isolators for expandable tubulars in wellbores
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the...
08/07/2007
7182135Plug systems and methods for using plugs in subterranean formations
A method and plug for separating fluids in subterranean wells is provided. The plug enters a passage at an interface of successively introduced fluids. The plug comprises an outer body and a detachable inner mandrel attached to the outer body. An Assembly comprising...
02/27/2007
7165634Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des...
01/23/2007
7147068Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des...
12/12/2006
7128154Single-direction cementing plug
The present invention generally relates to apparatus and methods for completing a well. Particularly, the present invention relates to a single-direction plug for use with cementing applications and with drilling with casing applications. One embodiment comprises a ...
10/31/2006
7100693Process for pressure stimulating a well bore through a template
One or more templates are provided for circulating fluids in a main well bore and for drilling and completing at least one offset well bore from the main well bore. Each template has a body, an inlet leg, a main outlet leg, and an offset outlet leg. A straddle assem...
09/05/2006
7055610Plug concealment and diversion tool
A tool for capturing and retaining a pump down plug or ball which has been released from equipment above in a well bore, concealing the pump down plug from subsequent flow of fluid or other material through the tool, and diverting flow from a normal circulation port...
06/06/2006
7051587Traction apparatus
The present invention generally relates to a method and apparatus for performing an operation in a tubular. In one aspect, a method comprises positioning an apparatus in the tubular, the apparatus having a tractor portion and an auxiliary module. The method further ...
05/30/2006
7048050Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des...
05/23/2006
7044226Method and a device for removing a hydrate plug
A method and a device for removing a hydrate plug (38) from a pipeline (16), wherein a pig (1), which is connected to an umbilical (2) extending to surface, is displaced down into the pipeline (16) until proximity of the hydrate pl...
05/16/2006
7036610Apparatus and method for completing oil and gas wells
A method of drilling and completing a wellbore in a geological formation to produce hydrocarbons from a well comprising at least the following four steps: drilling the well with a retrievable drill bit attached to a casing; removing the retrievable drill bit from th...
05/02/2006
7032668Cementing system and method for wellbores
The present invention provides a cementing system and method for wellbores by cementing an annulus between a wellbore casing and a wellbore. In at least one embodiment, the invention includes a landing collar defining a restricted passage, a wellbore casing defining...
04/25/2006
7017650Earth loop energy systems
Wellbore heat loop systems, fillers for bores in the systems, and methods of the use of such systems; the systems in certain aspects having a heat loop wellbore in the earth having heat loop pipe extending down to one side of a bottom member and up therefrom on anot...
03/28/2006
6997253Anti-rotation method and apparatus for limiting rotation of cementing plugs
An apparatus for preventing or limiting the rotation of cementing plugs in a casing string during drillout. The apparatus includes an outer housing with a sleeve disposed therein. The sleeve has an inner surface configured to engage cementing plugs received therein ...
02/14/2006
6945326Non-rotating cement wiper plugs
A non-rotating cement wiper plug has an insert, with inner and outer telescoping sleeves, within a resilient outer body. The outer body has annular fins which bear against a casing wall. The inner sleeve has a tapering nose within a tapered cavity in the outer sleev...
09/20/2005
6923255Activating ball assembly for use with a by-pass tool in a drill string
A by-pass tool to be incorporated in a drill string, in combination with an activating ball assembly operative to adjust the tool between an activated mode and a de-activated mode. The tool has a valve seat engageable by the activating ball assembly to move its slee...
08/02/2005
6920933Platform for delivery of downhole tools
A platform is used to deliver a tool down a hole by controlling the flow of fluid through and around the platform. The platform has a top surface for receiving the tool. The platform also has a bottom surface to provide guidance through and resistance to the flow of...
07/26/2005
6896051Anti-rotation method and apparatus for limiting rotation of cementing plugs
An apparatus for preventing or limiting the rotation of cementing plugs in a casing string during drillout. The apparatus includes an outer housing with a sleeve disposed therein. The sleeve has an inner surface configured to engage cementing plugs received therein ...
05/24/2005
6719060Plunger lift separation and cycling
A plunger lift for a hydrocarbon well includes a multipart piston that is dropped into the well in separate pieces. When the pieces reach the bottom of the well, they fall into an accumulation of the formation liquid in the bottom of the well and unite. Gas from the...
04/13/2004
6712152Downhole plug holder and method
The plug holder sub 110 for being supported on a conveyance tubular temporarily supports a liner wiper plug 150, so that a pump down plug may land in the liner wiper plug and be supported from a generally tubular body 116 of the plug holder sub....
03/30/2004
6513590System for running tubular members
The present invention relates to a wiper plug and internal drop ball mechanism that may be used in conjunction with a downhole surge reduction tool to run, hang, and cement casing liners in a wellbore. The apparatus of the present invention comprises a wi...
02/04/2003
6439321Piston actuator assembly for an orienting device
An actuator for an orienting device for orienting a borehole apparatus in a borehole and an orienting device comprised of the actuator, wherein the orienting device is comprised of an orienting mechanism which is actuated by longitudinal movement. The act...
08/27/2002
6311771Plug for use in wellbore operations and apparatus for launching said plug
An apparatus for launching at least two plugs, said apparatus comprising a mandrel (2), a lower plug (22) and an upper plug (21) releasably disposed with respect to said mandrel (2), wherein said upper plug (21) comprises a body (23) having a flow path (2...
11/06/2001
6056053Cementing systems for wellbores
A new wellbore cementing system has been developed which includes, in certain embodiments, a plug container with a flow diverter for diverting a portion of flowing fluid away from plugs in the plug container; a plug set system with internal sleeves or dar...
05/02/2000
5950724Lifting top drive cement head
A subsea lifting top drive cement head in which cement flows from the top. The cement head includes lower and upper assemblies with a bore for fluid flow, and a body in sure lock connection with the lower and upper assemblies and having a dart cage to pre...
09/14/1999
5909771Wellbore valve
A new fill valve for use in cementing operations in a wellbore extending down into the earth has been invented, the fill valve having a tubular housing having a valve seat, a valve member slidably mounted in said tubular housing, a spring for biasing said...
06/08/1999
5884700Interior coating of gas well tubing
A method and apparatus for treating the production tubing string of a flowing gas well is disclosed. The method includes introducing treatment fluid into the wellhead end of the production tubing string, allowing an applicator fall through the production ...
03/23/1999
5829526Method and apparatus for placing and cementing casing in horizontal wells
Improved methods and apparatus for placing and cementing a casing string in a horizontal well bore section are provided. A float shoe is attached to the end of the casing string and a float collar is connected in the casing string for trapping air in a fi...
11/03/1998
5829523Primary well cementing methods and apparatus
The present invention provides improved primary well cementing methods and apparatus. The methods basically comprise the steps of releasing a displacement plug into the casing to be cemented and pumping a first displacement fluid behind the displacement p...
11/03/1998
5813457Wellbore cementing system
A new wellbore cementing system has been developed which includes, in certain embodiments, a plug container with a flow diverter for diverting a portion of flowing fluid away from plugs in the plug container; a plug set system with internal sleeves or dar...
09/29/1998
5803173Liner wiper plug apparatus and method
An apparatus and method are disclosed for pumping segregated fluids through a tubular member, such as is required when cementing a liner into a well bore. A liner wiper plug has an internal bore formed therethrough, with a flapper valve mounted in the lin...
09/08/1998
5762139Subsurface release cementing plug apparatus and methods
The present invention provides an improved subsurface release cementing plug apparatus for use in a string of pipe during the cementing of the pipe in a well bore. The apparatus includes a hollow cementing plug seat member adapted to be connected in the s...
06/09/1998
5722491Well cementing plug assemblies and methods
An improved well cementing plug assembly adapted to be connected to a string of drill pipe or a circulation tool for use in a pipe during the cementing of the pipe in a well bore is provided. The top and bottom plugs are selectively releasable by activati...
03/03/1998
5673751System for controlling the flow of fluid in an oil well
A device is provided for controlling fluid flow in oil well casings or drill pipes. The device defines a flowpath for fluid through a casing section or drill pipe with the flowpath including a throttling valve which restricts or prevents the flow of fluid...
10/07/1997
5544705Method for injecting fluid into a wellbore
A method for injecting fluid, such as an accelerator, into a wellbore comprises storing the fluid in a reservoir, locating the reservoir downhole in the wellbore, and then transferring the fluid from the reservoir into the wellbore. More particularly, one...
08/13/1996
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