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2021
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Invention
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Method of and apparatus for determining variations in wall thickness in ferromagnetic tubes. A me... |
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Invention
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Apparatus and method for signalling between downhole and uphole locations. An apparatus can inclu... |
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Invention
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Apparatus and method for signalling between downhole and uphole locations. A downhole tool (12) i... |
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2020
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Invention
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Method of and apparatus for determining component weight and/or volume fractions of subterranean ... |
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Invention
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Downhole connection. A downhole tool connection comprises (i) a tool intended for downhole use an... |
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2019
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Invention
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Improvements in or relating to induction logging tools. An induction logging tool or logging tool... |
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2018
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Invention
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Apparatuses and methods for determining properties of subterranean layers. Apparatus (10) for use... |
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Invention
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Coaxial reflectometer sensor elements. A reflectometer sensor element comprises (i) a recess form... |
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Invention
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Fluid pressure waveform generator and methods of use. An acoustic dipole waveform generator has a... |
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Invention
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Method of and apparatus for carrying out acoustic well logging. In acoustic well logging, for eac... |
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2017
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Invention
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Geological log data processing methods and apparatuses. A method and a resistivity image logging ... |
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2016
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Invention
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Borehole log data processing methods. A method of processing borehole log data to create one or m... |
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Invention
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Downhole tool coupling and method of its use.
A downhole tool coupling (10) comprises first (11)... |
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Invention
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Downhole tool coupling and method of its use. A downhole tool coupling (10) comprises first (11) ... |
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Invention
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Method and apparatus for processing log data. To process geological log data, a two-dimensional s... |
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Invention
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Borehole logging sensor and related methods. A method of optimizing the cross-sectional shape of ... |
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Invention
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Communication methods and apparatuses for downhole logging tools. Logging tool communication appa... |
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2015
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Invention
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Logging tool. A logging tool or sub (10) for downhole use comprises an elongate logging tool body... |
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Invention
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Methods of and apparatuses for identifying geological characteristics in boreholes. A method of d... |
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Invention
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Relating to geological logging.
A method of improving geological log data comprises the steps of... |
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Invention
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Methods of logging geological formations. A method of improving geological log data obtained from... |
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2014
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Invention
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Acoustic logging apparatuses and methods. A transmitter for an acoustic logging tool includes an ... |
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Invention
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Logging tool and method of use. A logging tool or logging tool sub (10) for downhole use comprise... |
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Invention
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Method of correcting mineral ore density logs.
A logging method includes carrying out respective... |
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Invention
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Methods of and apparatuses for improving log data. Disclosed herein is method of computing format... |
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Invention
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Shock absorber, related methods and apparatuses. A shock absorber (29) for downhole use comprises... |
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Invention
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Method of and apparatus for calculating ucs and ccs. (g) using the composite UCS calculation curv... |
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Invention
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Downhole seal element and related apparatuses. A downhole seal element (10) comprises a cup porti... |
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2013
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Invention
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Geological log data processing methods and apparatuses. A method of processing geological log dat... |
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Invention
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Log inversion method for nuclear log data of earth formations. Inverting nuclear log data for a g... |
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2012
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Invention
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Method of establishing formation resistivity. In a method of processing resistivity log data, two... |
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Invention
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Method of logging a borehole and related apparatus.
In a method of logging a geological formatio... |
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2011
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Invention
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Apparatus and methods for orienting, stabilizing, or stably operating a logging tool. A logging t... |
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Invention
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Apparatus and methods for orienting, stabilising or stably operating a logging tool. A logging to... |
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2009
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Invention
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Valve assembly. A valve assembly (10) comprises a drillpipe (11) defining a hollow, generally cyl... |
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Invention
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Method of enhancing attributes of logs of geological formations. A method is disclosed of enhanci... |
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2008
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Invention
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Methods of logging geological formations. A method of processing geological log data obtained fro... |
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Invention
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Methods of logging geological formations. (iv) determining the value of the asymptote.
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2007
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Invention
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Acoustic isolator section. (iv) a movement limiter.
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Invention
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Method of acquiring and processing neutron log data, and related apparatuses. A method and appara... |
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2005
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Invention
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Method of correcting density logs for the presence of the casing. A gas detection method includes... |
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Invention
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Method of compensating a density log. A method of compensating a density log comprises the step o... |
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2003
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Invention
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Method of logging a borehole. In the field of wellbore data logging it is known to use isotopic n... |
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Invention
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Apparatuses and methods for deploying logging tools and signalling in boreholes. The apparatus in... |
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Invention
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Method of through-casing gas detection. A gas detection method includes carrying out respective n... |
