Class 73/152.25 - With a filter

Subclass of Class 73 - Measuring and testing
Definition: Subject matter including a barrier having interstices, pores,
No. of patents: 25
Last issue date: 11/15/2011

Number	Title	Issue Date
8057755	Constructive disposition applied to sample collector for the purposes of feces parasitological exam The present application is about a new construction disposition applied to sample collector for the purposes of feces parasitological exams, more precisely to one new construction form which is manufactured with a reduced number of parts, helping with its low cost, ...	11/15/2011
7603897	Downhole probe assembly A downhole, extendable apparatus and methods of use are described and claimed herein. In one embodiment, the extendable apparatus includes a piston that extends toward a borehole wall, the piston having an inner sampling member that is also extendable. The sampling ...	10/20/2009
7363829	Drill cutting sampler A device for sampling drill cuttings includes a frame, an inclined perforated member mounted on the frame, a sprayer for washing cuttings down over the perforations, and a removable open-topped cuttings collector mounted under the perforated member, the perforated m...	04/29/2008
7347262	Downhole sampling tool and method for using same Methods and apparatuses for sampling fluid from a subterranean formation penetrated by a wellbore are provided. The subterranean formation has clean formation fluid therein, and the wellbore has a contaminated fluid therein extending into an invaded zone about the w...	03/25/2008
7331223	Method and apparatus for fast pore pressure measurement during drilling operations A method and apparatus for measuring the pressure of a formation penetrated by a wellbore is provided. A downhole tool is positioned in the wellbore and a probe is extended therefrom into sealing engagement with the formation. A piston in the probe is retracted ther...	02/19/2008
7240546	Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents A formation fluid sample is exposed to a rigidly-supported semi-permeable membrane such as silicone rubber to permit diffusion of gases and vapors from the formation fluid into a vacuum chamber, while at the same time, blocking the passage of any liquids. The membra...	07/10/2007
7219541	Method and apparatus for downhole fluid analysis for reservoir fluid characterization A formation fluid sample is exposed to a rigidly-supported semi-permeable membrane such as silicone rubber to permit diffusion of gases and vapors from the formation fluid into a vacuum chamber, while at the same time, blocking the passage of any liquids. The membra...	05/22/2007
7216533	Methods for using a formation tester A method of testing a downhole formation using a formation tester on a drill string. The formation tester is disposed downhole on a drill string and a formation test is performed by forming a seal between a formation probe assembly and the formation. A drawdown pist...	05/15/2007
7198105	Apparatus and method for controlling the pressure of fluid within a sample chamber A formation testing tool and method for providing pressure controlled sampling is provided. A flow line delivers formation fluid to a sample chamber in the testing tool. A first valve controls the flow of formation fluid from the flow line to the sample chamber. A p...	04/03/2007
7155967	Formation testing apparatus and method A method and apparatus for testing formations surrounding an earth borehole. The method includes the following steps: providing a tool movable through the borehole; providing a flow line in the tool; establishing fluid communication between the formations and the fl...	01/02/2007
7152466	Methods and apparatus for rapidly measuring pressure in earth formations Methods and apparatus for rapidly measuring pressure in earth formations are disclosed. According to a first embodiment of the apparatus, a probe is provided with a movable piston having a sensor built into the piston. According to a second embodiment of the apparat...	12/26/2006
7140436	Apparatus and method for controlling the pressure of fluid within a sample chamber A formation testing tool and method for providing pressure controlled sampling is provided. A flow line delivers formation fluid to a sample chamber in the testing tool. A first valve controls the flow of formation fluid from the flow line to the sample chamber. A p...	11/28/2006
7111685	Downhole sampling apparatus and method A method and apparatus for reducing debris in a perforation in a wellbore extending from the wellbore into a subterranean formations is provided. A housing is positioned in the wellbore, and an arm is extended therefrom. One or more plugs are positionable in the per...	09/26/2006
6964301	Method and apparatus for subsurface fluid sampling The apparatuses and methods herein relate to techniques for extracting fluid from a subsurface formation. A downhole sampling tool is provided with a probe having an internal wall capable of selectively diverting virgin fluids into virgin flow channels for sampling,...	11/15/2005
6957709	Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation A borehole wall cleaning apparatus and method for obtaining an improved seal between a fluid sampling device and a portion of the borehole wall. Clean drilling fluid is pumped into a drilling tool using a mud pump. A fluid diverter in the tool diverts all or part of...	10/25/2005
6871532	Method and apparatus for pore pressure monitoring A method of monitoring pore pressure, comprises the steps of: (a) providing downhole in a well a sealable container, (b) sealing in the container a sample of fluid at a baseline pressure and a sample of a formation...	03/29/2005
6543276	Oil well bore hole filter cake breaker fluid test apparatus and method A method and apparatus for determining the effectiveness and reaction time of a breaker fluid in breaking a filter cake on the wall of a wellbore penetrating a subterranean formation is disclosed. The method comprises employing an apparatus, such as for e...	04/08/2003
6101871	In-ground vapor monitoring device and method In an in-ground vapor monitoring device for use with a conventional, hollow stemmed drill rig including a novel swivel assembly which attaches to a drill rod and which has a central passage formed therethrough. A fluid outlet port and an outlet channel jo...	08/15/2000
5686299	Method and apparatus for determining nutrient stimulation of biological processes A method and apparatus for determining the nutrients to stimulate microorganisms in a particular environment. A representative sample of microorganisms from a particular environment are contacted with multiple support means wherein each support means has ...	11/11/1997
5641642	In situ biofilm coupon device An apparatus for characterization of in-situ microbial biofilm populations in subsurface groundwater. The device permits biofilm-forming microorganisms to adhere to packing material while emplaced in a groundwater strata, so that the packing material can ...	06/24/1997
4951749	Earth formation sampling and testing method and apparatus with improved filter means A method for obtaining samples of connate fluids from formations traversed by a borehole, wherein a sample test chamber is brought in communication with an isolated portion of the borehole wall, and is opened so as to allow the connate fluids to fill the ...	08/28/1990
4246782	Tool for testing earth formations in boreholes A tool for testing earth formations in boreholes provides a failsafe function for retracting the sealing pad elements of a formation isolation device, in the form of elements operable in response to failure of downhole power supply for the tool to effect ...	01/27/1981
3952588	Apparatus for testing earth formations In the representative embodiment of the new and improved apparatus for testing earth formations disclosed herein, fluid-admitting means are sealingly engaged with a potentially-producible formation and a selectively-movable chamber is expanded to draw mud...	04/27/1976
3934468	Formation-testing apparatus In the representative embodiment of the new and improved formation-testing apparatus disclosed herein, a wall-engaging sealing pad is arranged around the forward end of a normally open tubular probe which is adapted to be placed in communication with an a...	01/27/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 73/152.25 - With a filter