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Matches 1 - 50 out of 2,965

Document Document Title
WO/2018/185095A1
The present invention relates to a method of estimating the region of damage due to collapse in the wall of a well during the drilling operation, normally using drilling fluid, where said well can, for example, be intended either for the...  
WO/2018/185099A1
The present invention relates to a drilling method suitable for wells for the injection and production of a gas or oil reservoir. Other uses are in mining and civil engineering work. This method is characterized by the use of the estimat...  
WO/2018/178045A1
The present invention is related to computer implemented method for characterizing a target fluid of a hydrocarbon reservoir under uncertainty providing a set of fluid properties from a limited amount of information.  
WO/2018/176976A1
A transmitter (3) of a trough-bit dipole acoustic logging device, the transmitter (3) comprises a substrate (32) and two piezoelectric ceramic plates (31) respectively located on two sides of the substrate (32); each of the piezoelectric...  
WO/2018/182632A1
A method to produce reconstituted structures that recreate the chemical, geological, and structural characteristics of a portion of a target reservoir formation by using drill cuttings material from the target reservoir formation. The me...  
WO/2018/182673A1
Viscosity assemblies may be used to determine the viscosity of a sample fluid at a surface location under one or more downhole conditions prior to pumping or flowing of the sample fluid downhole. A viscosity assembly may include a bob as...  
WO/2018/175404A1
A compressive load is exerted with a test apparatus across a rock sample that has a specified length-to-diameter ratio. A strain on the rock sample is measured during the compressive loading with a strain gauge. A mechanical property of ...  
WO/2018/170082A1
A determination of the free water level for a hydrocarbon-bearing reservoir is provided that accounts for the different classified rock types (that is, facies) in the reservoir. The free water level for each unique combination of facies ...  
WO/2018/170500A1
A testable back pressure valve for controlling fluid flow through a bore of a component installed in a well bore is disclosed. The back pressure valve includes a valve body which is configured to be secured in the bore, a flow bore which...  
WO/2018/161649A1
An inclined shaft well wall concrete floor prestress loading apparatus (1), comprising two end bearing members (4), a corrugated pipe (5), a bearing rod member (6), and two anchor heads (7), the bearing rod member (6) being composed of a...  
WO/2018/165095A1
Methods and systems for delivering EOR substances and determining their efficiency in real time, or near real time, are disclosed. The systems and methods of the present disclosure are especially important in determining petrophysical in...  
WO/2018/164880A1
Techniques for determining an amount of chert in a rock formation include identifying first logging data for a selected zone of a first subterranean formation that includes chert, quartz, and zircon; identifying second logging data for a...  
WO/2018/165063A1
A portable sensing system for nanomaterial tracers used in oil producing wells is provided. The portable sending system includes a separation device such as a hydrocyclone or carboy, a filtration device having filtration media, a waste c...  
WO/2018/160259A1
A method, system, and apparatus for using and testing chemically tagged drilling fluid additives. In one embodiment, the method comprises: circulating a drilling fluid in a wellbore, wherein the drilling fluid comprises a chemically tagg...  
WO/2018/160328A1
An array of sensors provided on the outside of a tubular string for measuring a property within the tubular string. The array of sensors may include a plurality of connected sensors, wherein at least one of the plurality of connected sen...  
WO/2018/160340A1
A tubular string formed by one or more tubulars with a central flow passage for an internal fluid therethrough and an external surface. The tubular having a wall thickness defined between external surface and the central flow passage and...  
WO/2018/160388A1
Described herein are methods and techniques for utilizing a multiple metal isotope signature as an internal tracers for hydrocarbon source, alteration, and mixing. The multiple metal isotope signature may comprise a ratio of a at least t...  
WO/2018/160347A1
A spoolable array of sensors may be deployed within a wellbore and external a tubular string for measuring properties of a fluid in the central flow passage of the tubular string. A flow port may be made in the tubular string passing fro...  
WO/2018/156142A1
Methods and system to calculate a skin effect using wellbore temperature measurements are described herein. In a generalized method, data corresponding to wellbore characteristics, reservoir characteristics, and a preliminary pressure dr...  
WO/2018/152615A1
Methods and apparatus of pressure activated completion tools for hydraulic fracturing and related processes are provided. In some embodiments, the hydraulic fracturing apparatuses for well testing and accessing subterranean formations ca...  
WO/2018/156115A1
Methods of wellbore cementing are provided. A method of analyzing a solid particulate including: measuring a water requirement of the solid particulate; and determining an approximation of specific surface area of the solid particulate f...  
WO/2018/152313A1
A gamma ray scintillation spectrometer is disclosed in which an inorganic scintillation crystal has a channel extending therethrough for receiving a sample into, and disposing a sample out of, the scintillation crystal. The spectrometer ...  
WO/2018/152468A1
This disclosure describes a novel method for predicting or estimating rock mechanical properties from cuttings at a particular depth based on determining the facies, plotting the facies on a ternary diagram with clay, silica and carbonat...  
WO/2018/148840A1
A coreless injectivity method. Drill cuttings from drilling a well into a subterranean formation rock are pressed into a compressed core plug and the compressed core plug subjected to injectivity testing. The injectivity testing of the c...  
WO/2018/144606A1
Disclosed are systems and methods for performing a contamination estimation of a downhole sample comprising at least a formation fluid and a filtrate. A plurality of downhole signals are obtained from the downhole sample and one or more ...  
WO/2018/140322A1
An embodiment of a system for estimating a parameter of an earth formation includes at least one formation parameter sensor disposed at a first downhole component and configured to measure a parameter of an earth formation to generate fo...  
WO/2018/136998A1
Disclosed is a method for validating logging data for a mineral sample which has been obtained from a region of interest. The method comprises obtaining logging data associated with a composition of the mineral sample, the logging data i...  
WO/2018/134633A1
The method comprises: (a) obtaining (300) a first time series of a first well parameter from the first well and a second time series of a second well parameter from the second well, (b) processing (310) the first time series to obtain a ...  
WO/2018/132180A1
Systems and methods for assessing physical properties of a geological formation are disclosed. The systems and methods may use electrodes that include two conductive portions separated by an isolation gap positioned along a casing in a w...  
WO/2018/126395A1
A method of sensing hydrocarbons in a subterranean rock formation (104), including advancing a drilling assembly (100) within the subterranean rock formation (104). The drilling assembly (100) is configured to discharge a first fluid (16...  
WO/2018/125168A1
Systems and methods for subterranean formation testing. A method may include: lowering a formation testing tool into a subterranean formation, wherein the formation testing tool may include memory, a pump, a formation probe, at least two...  
WO/2018/121046A1
A method for determining the conductivity distribution of acid-fractured fractures of a carbonate rock oil and gas reservoir by experimentation, comprising: simulating, by means of the acid-fracturing simulator, FracproPT, the extension ...  
WO/2018/125138A1
A downhole tool including a tube having an inner bore that receives a sample of fluid from a subterranean formation, a vibration source and a vibration receiver each at least partially coupled to the tube, and a controller coupled to the...  
WO/2018/125918A1
A downhole assembly includes a drill collar, the drill collar having an outer wall and an insert, the insert positioned within drill collar. The insert has a bore therethrough. The downhole assembly further includes at least one sensor w...  
WO/2018/123269A1
In the present invention, from the shape of a measurement cross-section, which is set in a direction orthogonal to the longitudinal direction, of a boring core (BC1) acquired by excavating crust or ground in the excavation direction of a...  
WO/2018/125100A1
Downhole tool is provided that includes a body, an intake port for receiving fluid from external the body, a pump, a filtration device, and an exit port. The pump is in fluid communication with the intake port for withdrawing fluid throu...  
WO/2018/118020A1
A method may include drilling a deviated wellbore penetrating a subterranean formation according to bottom hole assembly parameters and surface parameters; collecting real-time formation data during drilling; updating a model of the subt...  
WO/2018/119130A3
Methods, systems, devices, and products for downhole operations. Embodiments include downhole tools comprising an outer member configured for conveyance in the borehole; a pressure barrel positioned inside the outer member; a substantial...  
WO/2018/118017A1
Downhole tools for isolating and analyzing one or more gases include a gas separation assembly in fluid communication with a gas specific analyzer. The gas separation assembly includes a piston disposed within a housing and a separation ...  
WO/2018/118044A1
This disclosure provides a method of determining a pore throat size distribution of reservoir rock, comprising injecting a set of different-sized probe particles through a portion of reservoir rock and measuring retention volumes or time...  
WO/2018/119130A2
Methods, systems, devices, and products for downhole operations. Embodiments include downhole tools comprising an outer member configured for conveyance in the borehole; a pressure barrel positioned inside the outer member; a substantial...  
WO/2018/111281A1
Contamination estimation of a mud filtrate or reservoir sample requires a robust handle on the properties of mud filtrate at downhole conditions. Coupling acquired data with downhole measured data provides a robust estimation of contamin...  
WO/2018/108662A1
The invention relates to methods for determining a soil class, in which an earth drilling is introduced into the ground by means of a ground drilling device with a drill head, wherein a parameter of the ground drilling device and/or an o...  
WO/2018/111945A1
Methods for determining the hardness and/or ductility of a material by compression of the material are provided as a first aspect of the invention. Typically, compression is performed on multiple sides of a geologic material sample in a ...  
WO/2018/112116A1
Methods may include emplacing a downhole tool within a wellbore, sampling a fluid downhole with the downhole tool; analyzing the fluid, and calculating an interfacial tension (IFT), wherein calculating the acid-base IFT contribution comp...  
WO/2018/103426A1
A wellbore and formation crack coupled flow simulation experiment device, the device consisting of a simulation wellbore flow system, a simulation formation system, a simulation crack system and a data acquisition system. Further disclos...  
WO/2018/106585A1
A method for estimating a chemical composition of hydrocarbons of interest includes: performing a measurement for each physical property of a plurality of physical properties of the hydrocarbons of interest using a sensor to provide a va...  
WO/2018/103324A1
Provided are a laser rangefinder-based measurement while drilling device and method for determining a rock mass grade of a tunnel roof. The device comprises a pulse-type laser rangefinder (1), a roof reflector (2), a tightening device (3...  
WO/2018/103326A1
Provided are a measurement while drilling device and method for determining lithological characteristics of a tunnel roof. The measurement while drilling device comprises a rock debris collection device (1), an individual roof bolter (2)...  
WO/2018/103325A1
Provided is a sound level meter-based measurement while drilling device for obtaining a Protodikonov's hardness coefficient of a rock of a tunnel roof, characterized in comprising: a bearing type measurement while drilling device (1); an...  

Matches 1 - 50 out of 2,965