Baker Hughes Corporation

Saudi Arabian Oil Company

Western Atlas International, Inc.

Aramco Services Company

Baker Hughes, a Ge Compnay, LLC

Core Holdings B.v.

Geomechanics International, Inc.

Daniel T Georgi

Hui-Hai Liu

Jinhong Chen

Songhua Chen

Anuj Gupta

Carl M Edwards

Alberto F Marsala

Rocco DiFoggio

Stacey Marie Althaus

Katherine Leigh Hull

Bitao Lai

Huseyin Onur Balan

Ali Alkhatib

James J Sheng

Lorne Arthur Davis, Jr

Michael Rabinovich

Jilin Jay Zhang

Antonius M Loermans

Xinwo Huang

Danny Eugene Scott

Anthony Albert DiGiovanni

Otto N Fanini

Tsili Wang

Martin E Poitzsch

Jason R Cox

Hooisweng Ow

Alexandre N Bespalov

Feyzi Inanc

David J Jacobi

Robert Alan Estes

Daniel Moos

David Alexander Curry

W Allen Gilchrist, Jr

Rashid W Khokhar

Gamal A Hassan

David A Castillo

Juergen S Schoen

Mikhail N Gladkikh

Artem V Manakov

John Fabian

Aleksandr A Kashevarov

Stanislav W Forgang

Martin Paul Coronado

Gregory Boris Itskovich

Leonty Abraham Tabarovsky

Roger W Fincher

Sebastian Csutak

David R Beard

David M Chace

Sheng Fang

John M Michaels

Paul Allan Bergren

Stanley C Jones

Richard R Pemper

Michael J Moody

Yuliy Aleksandrovich Dashevsky

Andrew Kirkwood

Bill H Corley

Xiaogang Han

Jorge Maxit

Huangye Chen

Francisco Galvan-Sanchez

Alexandr Nikolaevich Vasilevskiy

Baoyan Li

Shanhong Song

Gigi Zhang

Larry M Hall

Alfred I Khisamutdinov

Mark S Franks

Homer A Robertson

Jian C Zhang

Jianrong Wang

Lorne Davis

Li Baoyan

Anthony A Digiovanni

David A Curry

Systems and methods of surface logging a well use a plurality of polymeric taggants distinguishable from each other. The systems and methods can include adding each of the plurality of polymeric taggants in a repeating sequence to a circulating drilling fluid while drilling the well and taking a sample drill cuttings carried by the circulating drilling fluid. The systems and methods can also include measuring concentrations of individual polymeric taggants attached to the drill cuttings in the sample and identifying a depth associated with the sample based on the measured concentrations of individual polymeric taggants and on the sequence.

Surface logging wells using depth-tagging of cuttings

Nuclear magnetic resonance (NMR) well logs are obtained from a well in the reservoir measures of the total fluid, including both water and hydrocarbon, in the shale of the reservoir. NMR measurement at the surface of shale subsurface samples obtained in the form of drill cuttings or core samples from the same well provide measures of total water content of the shale. At the surface, pressure on the subsurface sample becomes that of atmospheric pressure, and hydrocarbon gas contained in the shale cuttings bleeds off. The remaining fluid within the shale cuttings is then only water, which can be measured using NMR techniques. Compensation for the effect of drilling fluids (drilling mud) on the NMR measures from the fluid cuttings is also performed. The hydrocarbon gas content of the formation shale can be determined from the difference between formation NMR well log readings and NMR measurements from subsurface sample.

Data processing system for measurement of hydrocarbon content of tight gas reservoirs

Computer implemented method for measurement of hydrocarbon content of tight gas reservoirs

Data storage device with stored instructions for measurement of hydrocarbon content of tight gas reservoirs

The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole; directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, where the irradiating is performed by irradiating a first portion of the rocks by using the EM wave for a first duration and after irradiating the first portion of the rocks for the first duration, refraining from irradiating the first portion of the rocks for a second duration.

Using radio waves to fracture rocks in a hydrocarbon reservoir

A method for correcting low permeability laboratory measurements for leaks. A pulse-decay permeability (PDP) experiment is performed on a core sample retrieved from a formation. The PDP experiment includes flowing fluid through the core sample in a sealed enclosure. In response to flowing the fluid through the core sample, a change in fluid pressure is measured over time. Based on the change in fluid pressure over time, a leakage of fluid from the sealed enclosure is determined. In response to determining the leakage of fluid from the sealed enclosure, an analytical model of the leakage is determined based on the change in fluid pressure over time.

Method for correcting low permeability laboratory measurements for leaks

A method for surface logging a well uses a plurality of polymeric taggants distinguishable from each other. The method includes selecting the polymeric taggants that have ceiling temperatures that do not interfere with pyrograms from source rock decomposition and adding each of the plurality of polymeric taggants to a circulating drilling fluid in a sequence while drilling the well. A sample of drill cuttings carried by the circulating drilling fluid is then taken. The method also includes measuring, using pyrolysis-gas chromatographymass spectrometry, concentrations of individual polymeric taggants attached to the drill cuttings in the sample and analyzing, using pyrolysis-gas chromatographymass spectrometry, properties of the drill cuttings. A depth associated with the sample is identified based, at least in part, on the measured concentrations of individual polymeric taggants and on the sequence.

The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole: directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, wherein irradiating the rocks elevates pore-water pressure in the rocks causing fracturing of the rocks.

Techniques for controlling hydrocarbon production includes (i) identifying a plurality of reservoir measurements of a subterranean hydrocarbon reservoir located between at least one injection wellbore and at least one production wellbore; (ii) processing the identified plurality of reservoir measurements to generate a petrophysical model of the subterranean hydrocarbon reservoir; (iii) determining, based on the petrophysical model, a flow of an injectant from the injection wellbore toward the production wellbore; and (iv) adjusting an inflow control device (ICD) positioned about the production wellbore based on the determined flow of the injectant.

Controlling hydrocarbon production

The present invention relates to methods for analyzing and modeling natural gas flow in subterranean shale reservoirs. In preferred embodiments, methodologies and techniques for determining and modeling natural gas flow in shale formations using methodologies and techniques capable of determining natural gas properties related to dual-continuum flow, permeability and pressure within a subterranean shale reservoir. In some embodiments, the natural gas properties are determined by subjecting a subterranean shale reservoir sample to pulse-decay analysis. In certain embodiments, the methodologies and techniques described herein may be used in various reservoirs exhibiting macroporosity and/or microporosity, such as fractured reservoirs and carbonate reservoirs composed of reservoir fluids.

Methods for analyzing natural gas flow in subterranean reservoirs

Methods and systems for determining permeability, as a function of pore pressure, and porosity of a subsurface formation. The method includes positioning a sample in a sample assembly comprising of a gas and a pressure gauge, inside a pressure vessel comprising gas or liquid and a pressure gauge, measuring a first gas pressure, p, of the sample inside the pressure vessel, applying a second gas pressure, p, to the pressure vessel, the second gas pressure being greater than the first gas pressure, measuring a third gas pressure, p, at time, t, at location, x, from the inlet of sample inside the pressure vessel, determining a total gas mass per unit volume of the subsurface formation, m, and determining the permeability, k, of the subsurface formation as a function of pore pressure based at least in part on the first gas pressure, the second pressure, the third gas pressure, and the gas density, with a single test run.

Methods and systems for determining gas permeability of a subsurface formation

Nuclear magnetic resonance (NMR) well logs are obtained from a well in the reservoir measures of the total fluid, including both water and hydrocarbon, in the shale of the reservoir. NMR measurement at the surface of shale subsurface samples obtained in from drill cuttings or core samples of the same well provide measures of total water content of the shale. At the surface, pressure on the subsurface sample becomes that of atmospheric pressure, and hydrocarbon gas contained in the shale cuttings bleeds off. The remaining fluid within the shale cuttings is then only water, which can be measured using NMR techniques. Compensation for the effect of drilling fluids (drilling mud) on the NMR measures from the fluid cuttings is also performed. The hydrocarbon gas content of the formation shale can be determined from the difference between formation NMR well log readings and NMR measurements from subsurface sample.

Method for measurement of hydrocarbon content of tight gas reservoirs

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Houston, TX, United States of America

Daniel T Georgi