Class 73/19.09 - Of mud

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the substance whose gas content is
No. of patents: 29
Last issue date: 08/24/2010

Number	Title	Issue Date
7779667	Device for extracting at least one gas contained in a drilling mud and associated analysis assembly The inventive device (53) comprises an enclosure (63), means (65) for supplying the drilling mud into the enclosure (63), and means (67) for discharging the drilling mud from the enclosure (63). The device also comprises mea...	08/24/2010
7421881	Method and system for degassing a fluid Disclosed herein is a system for degassing a fluid including a sample probe in operable communication with a pump which is in operable communication with a gas trap wherein one or more nozzles are located to accelerate and expel the fluid into the gas trap thereby l...	09/09/2008
7395691	Method and apparatus for determining gas content of subsurface fluids for oil and gas exploration A process to analyze fluid entrained in well boreholes. The process includes gathering trap gas samples from return of drilling mud at multiple depths. The process also includes the steps of subjecting the samples to mass spectrometry in order to determine mass to c...	07/08/2008
7318343	System for detecting gas in a wellbore during drilling A system is provided for detecting the presence of formation gas in a stream of drilling fluid flowing through a wellbore during drilling of the wellbore. The system has at least one sensor chamber connectable to a drill string for drilling the wellbore, each sensor...	01/15/2008
7269993	Gas detecting apparatus, gas detecting method and fuel cell vehicle The gas detecting system of the present invention is equipped with a catalytic combustion type gas sensor 1a and a semiconductor type gas sensor 1b, in a gas detecting system 1 having an operating sate in which generation of electr...	09/18/2007
7240535	Method and apparatus for gas measurement at substantially constant pressure A system which enables the presentation of alternating gas samples to a gas sensor in a detection zone without substantial change of the sample pressure at the sensor in the zone, whereby pressure variations that can produce unwanted sensor signals are mitigated; al...	07/10/2007
7210342	Method and apparatus for determining gas content of subsurface fluids for oil and gas exploration A process to analyze fluid entrained in well boreholes. The process includes gathering trap gas samples from return of drilling mud at multiple depths. The process also includes the steps of subjecting the samples to mass spectrometry in order to determine mass to c...	05/01/2007
7111493	Combustible gas detection system A system is provided for monitoring the levels of combustible gas in a gas stream. The system includes means for controlling the relative humidity of the gas stream and maintain a humidity level in the performance range of combustible gas sensors. A number of method...	09/26/2006
7063456	Container for a blender A container (15) for a blender (10) includes a bottom surface (16) having a non-symmetrically shaped perimeter. A side wall (17) extends upwardly from the perimeter of the bottom surface (16). A mixing blade assembly (20) ha...	06/20/2006
7032444	Module for extracting gas from an underground liquid and installation equipped therewith This invention concerns a module for extracting samples in gas phase of compounds present in an underground working liquid, the extractor module including a receptacle for the liquid, associated with a device for stirring the liquid, a liquid inlet duct, a liquid ev...	04/25/2006
6938458	Acoustic doppler downhole fluid flow measurement An apparatus and system are disclosed for in situ measurement of downhole fluid flow using Doppler techniques. First, a baseline speed of sound is established as close to the desired measurement point as possible. This speed of sound measurement is then used in Dopp...	09/06/2005
6666067	Visual gas show identification method The abundance of methane, from a rock sample recovered from a subsurface formation, is determined by submerging the rock sample in a container with aqueous acid solution for release of natural gas from the rock sample and then determining the amount of re...	12/23/2003
6389878	Gas trap for drilling mud A gas trap liberates subterranean gases entrained in drilling muds. The trap introduces a stripping gas into a flow of mud gas for liberating mud gases. The trap comprises a pair of opposing truncated right circular vessels and having a concentric bottom ...	05/21/2002
6374668	Gas analyzer A gas analyzer for an oil drilling rig normally flows gas captured from a mud pit source through parallel paths from the gas source to a total gas analyzer. One of the paths is a loop path. Periodically the loop path is switched from the source to the tot...	04/23/2002
6286375	Apparatus for facilitating headspace sampling An apparatus for facilitating vapor extraction from the headspace of a septum-sealed vial containing a sample to be analyzed. The vial is heated, driving dissolved volatile organics out of solution and into the vapor headspace. A first end of a hollow pro...	09/11/2001
6276190	Differential total-gas determination while drilling Apparatus and process is provided for establishing values of the quality of gaseous hydrocarbons in gas extracted from mud while drilling. Two rare earth sensors, without a coating, are exposed to the extracted gas. The first sensor is pre-calibrated and ...	08/21/2001
5447052	Microwave hydrocarbon gas extraction system A method and apparatus for extracting hydrocarbon gas from drilling fluid samples utilizes microwave energy as the source for heating a sample, containing water, sufficiently to cause the extraction of the hydrocarbon gases therefrom. Either a batch or a ...	09/05/1995
5115666	Method of detecting halogen gas in a liquid A method for discovering amounts of halogen in a liquid is provided wherein a reservoir comprising the liquid and suspected halogen is heated to a temperature characteristic of the solubility of halogen in the liquid to provide a vapor. After condensing, ...	05/26/1992
4887464	Measurement system and method for quantitatively determining the concentrations of a plurality of gases in drilling mud A system for the quantitative analysis of one or more evolving gases exiting a borehole includes a Venturi ejector for substantially capturing liberated gases in the bell nipple and return line, a rotating disk extractor for substantially extracting gases...	12/19/1989
4786804	Means for measuring radon gas in the soil A device for measuring radon gas in the soil, consisting of a continuous-acting radon meter operating on through-flow principle. The meter comprises an enclosed volume, the gas therein being measured with the radon meter....	11/22/1988
4573354	Apparatus and method for geochemical prospecting An apparatus and method for detecting and mapping volatile species emanating from an underground source. A mass spectrometer is used for species identification and multivariate statistics are employed to determine the character of the source. The characte...	03/04/1986
4565086	Method and apparatus for detecting entrained gases in fluids Apparatus and method for detecting the level of gases entrained within a circulating drilling fluid used in subterranean well operations are disclosed. Detection of incipient gas kicks during drilling operations is accomplished by detecting the level of e...	01/21/1986
4546640	Positive air gas detector Disclosed is an apparatus for continually monitoring for the presence of suspended or dissolved gas within a viscous material, such as in the material accumulated in the mud reservoir of a mud system used in an oil or gas drilling operation. Pressurized a...	10/15/1985
4250142	Volatile hydrocarbon detector apparatus This invention is a volatile hydrocarbon detector apparatus to continuously sample methane gas in an oil well drilling mud. The detector apparatus includes 1) a gas sampler assembly to gather the methane gas from the drilling mud; 2) a control module asse...	02/10/1981
4215567	Method and apparatus for testing a production stream A method and apparatus for testing a production stream comprised of oil, water, and gas flowing through a conduit to determine the percentages of oil, water, and gas in the stream. A sample portion of the production stream is pumped through a sample line ...	08/05/1980
4201082	Process and equipment for determining the density of a loaded drilling fluid from a deep well, in particular an oil well Process and apparatus for determining the density of oil well drilling fluid, particularly, the gas content of the fluid. The density of the drilling fluid is determined under a known pressure. The drilling fluid is compressed and the density of the compr...	05/06/1980
4130010	Bubble detector Apparatus for detecting bubbles in drilling mud so that appropriate corrective action may take place prior to a possible blowout. A low frequency acoustic field is transmitted through the drilling mud which causes the displacement of any bubbles rising th...	12/19/1978
3943750	Probe collector for subterranean gases A gas probe for penetrating the earth to sample gasses therefrom such as gases of putrefaction in a suspected burial area. A cylindrical sampling conduit extends from an outlet at the top to a sampling manifold having at least one outwardly opening at the...	03/16/1976
3937060	Mud gas content sampling device The gas content of well drilling mud under pressure is determined by extracting or isolating a sample of the pressurized mud, as for example at a down-hole location, reducing the pressure of the sample, and sensing the fluid pressure of the sample prior t...	02/10/1976

PatentStorm

Famous Patents

PatentStorm News

Class 73/19.09 - Of mud