A method for determining the in-situ effective mobility of hydrocarbons in a formation layer, in which a formation test tool, having a fluid analyzer, induces sample fluid to flow from the formation, the sample being analyzed and discarded where it includes fluid from the invaded zone, so as to perform the pressure test on uncontaminated formation fluid.
Retrieving A Sample Of Formation Fluid In As Cased Hole
A method for retrieving a formation fluid sample through a cased borehole utilizing a sampling tool. Sampling tool straddle packers are set about a first set of perforations and annular fluid is drained from the isolated zone, through a central conduit in the tool and discharged above or below the packers. Formation fluid is induced to flow into the central conduit and into sample chambers. The packers are unset, the tool moved to the next set of perforations that are azimuthally offset from the first set of perforations and the sampling process repeated, with subsequent samples being placed in separate sample chambers.
Determining The Viscosity Of A Hydrocarbon Reservoir Fluid
Mohamed Naguib Hashem - New Orleans LA, US Gustavo Antonio Ugueto - New Orleans LA, US
Assignee:
Shell Oil Company - Houston TX
International Classification:
G01V009/04
US Classification:
702 13
Abstract:
Determining the viscosity of a hydrocarbon reservoir fluid that is present in a formation layer traversed by a borehole, which method involves the steps of selecting a location in the formation layer; lowering in the borehole to the location a tool that has a central conduit having an inlet, means for displacing fluids through the central conduit, and an optical fluid analyzer; making an exclusive fluid communication between the formation and the inlet of the central conduit; obtaining a spectrum of the optical density; calculating a first factor that is the maximum optical density in a predetermined short-wavelength range multipled with the length of the short-wavelength range, calculating a second factor which is the integral over the same short-wavelength range of the spectrum, subtracting the second factor from the first factor to obtain a hydrocarbon oil property; and obtaining the magnitude of the in-situ viscosity from the oil property using a relation that has been obtained by fitting a curve through previously obtained data points having the measured magnitude of the actual viscosity as a function of the oil property.
Apparatus And Methods For Acoustically Determining Fluid Properties While Sampling
Michael Tolbert Myers - Sugarland TX, US Donald Keith Love - Humble TX, US Willem J. M. Epping - Houston TX, US Mohamed Naguib Hashem - Mandeville LA, US
Assignee:
Shell Oil Company - Houston TX
International Classification:
G01N 29/02 E21B 44/00
US Classification:
73587, 7315218, 7315228, 7315246
Abstract:
An apparatus and methods for acoustically analyzing a fluid sample and determining one or more properties of the sample are disclosed by the present invention. The apparatus comprises a chamber, a transmitter positioned within the chamber for transmitting an acoustic signal through the fluid, a reflector movably positioned within the fluid inside the chamber for reflecting the acoustic signal, and a receiver positioned within the chamber for detecting reflections of the acoustic signal. The methods employ the use of a transmitter, a reflector movably positioned within the fluid inside the chamber, and a receiver to characterize the fluid sample based on one or more of its acoustic properties.
Measuring The In Situ Static Formation Temperature
Measuring the in situ temperature of a formation traversed by a borehole comprising lowering to a predetermined position in the borehole a tool that comprises a central conduit having an inlet an dbeing provided with a temperature sensor in contact with the fluid, means for analysing the fluid, and means for discharging fluid; allowing only formation fluid to pass through the central conduit; analysing the formation fluid; and measuring the temperature when the formation fluid is substantially uncontaminated.
Determining The Pvt Properties Of A Hydrocarbon Reservoir Fluid
Mohamed Hashem - Mandeville LA, US Gustavo Ugueto - Mandeville LA, US
International Classification:
C09K007/00
US Classification:
507/100000
Abstract:
The invention relates to a coin () which has a metallic surface () and comprises macroscopic reliefs () that serve to visually indicate the value of the coin and as a legitimacy feature. Microscopically fine relief structures () that cause diffraction are placed directly inside at least one of the surfaces (). The relief structures () are preferably recessed and covered with a lacquer (). In addition, it is advantageous when at least one portion of the relief structures () has an asymmetrical profile shape and/or the lattice vectors are radially aligned. The relief structures () can also contain a machine-readable coding which is recognized by cost-effective optical reading devices to be installed in coin examiners. The microscopic relief structure () can be provided on a hard material surface () by removing material effected by exposing the material surface () to a laser beam. The laser beam passes through a mask that determines the shape of the relief structures () and subsequently passes through an optical imaging system for size reduction. The exposure to light can be effected according to the two beam interference method. During an additional method, the microscopic relief structures () are etched into the material surface ().
System And Method For Measuring Compaction And Other Formation Properties Through Cased Wellbores
Frederick Rambow - Houston TX, US Mohamed Hashem - Mandeville LA, US Dennis Dria - Houston TX, US
International Classification:
G01N023/00
US Classification:
073/152140, 073/152520
Abstract:
A system and method are disclosed for efficient and reliable deployment of radioactive markers and remote sensors in earth formations through cased wellbores. The markers and sensors are permanently deployed to obtain data on compaction, pressure and other useful formation properties.
Apparatus And Methods For Tools For Collecting High Quality Reservoir Samples
- Wheeling WV, US Philip Powell - New Alresford, GB Margaret Waid - Houston TX, US Mohamed Hashem - Houston TX, US Paolo Nardi - Milano, IT
Assignee:
Fiorentini USA Inc - Wheeling WV
International Classification:
E21B 49/10 E21B 49/08
Abstract:
Methods and systems for collecting high quality reservoir samples and determining producibility of those samples are disclosed that provide for a non-stop and no shock sampling process. The systems and methods of the present disclosure are especially important collecting samples of reservoir samples in a manner that most closely resembles production fluids and maintains the reservoir at or near the draw down pressure during the pumping and sampling processes.
n Marrakech, I recall the fearless Iraqi-born editor and writer Samuel Shimon baldly stating the core problem: that all Arab governments hate their writers. At the Nile Hilton in Cairo, during a wet January, the jovially intrepid publisher Mohamed Hashem of Dar Merit sipped his red wine, smoked his cigarette and stoically treated state intrusion like another shower of rain.