There is provided a wellbore measuring apparatus including a tubular outer body connectable in line with a drill string. The apparatus includes arms pivotally coupled to the body. Each arm has a retracted position and is moveable from the retracted position to an extended position so that a free end portion thereof is radially away from an outer surface of the body. The free end portions of the arms have rounded configurations. The arms are angularly spaced apart around the body and arranged in a plurality of tiers. Each tier includes three or more of the arms. The tiers are spaced apart axially from one another along the body. Each arm of a first tier is angularly offset relative to the arms of a second tier. The apparatus includes sensors operatively connected to the arms, respectively, and via which a profile of a wellbore is measured.
There is provided a wellbore measuring apparatus according to one aspect. The wellbore measuring apparatus includes an outer body that is tubular and connectable in line with a drill string. The wellbore measuring apparatus includes a plurality of sensors angularly spaced relative to the outer body and arranged in a plurality of tiers. Each said tier includes two or more said sensors. The tiers are spaced-apart axially from one another along the outer body. Each said sensor is arranged to measure at least one characteristic of a wellbore. The sensors are contactless and/or acoustic sensors according to one non-limiting embodiment. The sensors are radially inwardly spaced from an outer surface of the outer body according to one example. The sensors are positioned in a helical arrangement according another example.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 47/10 - Locating fluid leaks, intrusions or movements
E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
E21B 47/085 - Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
There is provided a wellbore measuring apparatus according to one aspect. The wellbore measuring apparatus includes an outer body that is tubular with spaced-apart ends threaded for connection in line with a drill string. The outer body has a plurality of recesses extending around the outer surface thereof in one or more helical patterns. The wellbore measuring apparatus includes a plurality of sensors operatively coupled to and each positioned within a respective said recess of the outer body. Each sensor is arranged to measure at least one characteristic of a wellbore. The wellbore measuring apparatus may include at least one rib coupled to and extending radially outwards from the outer surface of the outer body. The at least one rib is helical in shape and with the plurality of sensors extending along and being adjacent to the at least one rib.
Apparatus for measuring the profile of a wellbore includes a cylindrical body having first and second ends threaded for connection in line with a drill string. A passage extends through the body between the first and second ends. A plurality of arms are pivotally coupled on an outer surface of the cylindrical body. Each of the arms is biased to pivot so as to move a free end thereof radially away from the outer surface of the body. The plurality of arms are angularly spaced apart around the cylindrical body and arranged in a plurality of tiers. Each of the tiers comprises three or more of the arms. The tiers are spaced apart axially from one another along the cylindrical body. Sensors are operable to directly or indirectly measure radial extension of each of the arms from the cylindrical body. A holding mechanism is operable to hold the arms in a retracted configuration and to selectively release the arms to pivot away from the cylindrical body. The arms may be extended while withdrawing a drill string containing the apparatus from a wellbore to monitor a profile of a wall of the wellbore.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Analysis instruments for photogrammetric purposes; Calipers; Computer software for calculation of operational and status data collected from mining tools for use in determining the driving accuracy and efficiency of well-bore engineering and for optimizing the production and life of oil and gas wells; Computer software for oil and gas well drilling analysis; Computer software for the collection of statistical production data for oil and gas well-bore engineering; Computer software for two or three-dimensional simulation for use in oil and gas well-bore engineering; Computer software for use in three-dimensional mapping of well-bores; Data loggers; Electronic data recorders for calipers; Programmable electronic data acquisition and control apparatus for use in determining the driving accuracy and efficiency of well-bore engineering and for optimizing the production and life of oil and gas wells; Software for the integration of artificial intelligence and machine learning in the field of big data; Surveying instruments; (1) Business intelligence consulting services; Business data management consultancy in information analysis; Compilation of statistical data for use in scientific and oil and gas research; Data processing services in the mining industry; Providing business intelligence services in the field of oil and gas mining exploration;
(2) Analysis in the field of oil exploration; Analysis of geological mining data namely numerical processing through Big Data analytics applied to mining exploration; Analysis services for oil field exploration; Cartography and mapping services; Computer programming; Data migration services; Geological prospecting; Geophysical exploration for the mining industry; Geophysical exploration for the oil, gas and mining industries; Industrial data mining analysis and research services; Maintenance of computer software; Mine exploration; Consulting services in the field of mining exploration; Consulting services in the field of mining engineering; Consulting services in the field of mining surveying; Mining surveying; Oil and gas well environmental analysis; Oil field analysis; Provision of scientific information, advice and consultancy in relation to mining exploration; Scientific analysis of mining research data and statistics regarding mining exploration sites; Statistical evaluation of geological data from mining research; Surveying of mines; Analysis of mining research data and statistics; Business data analysis for the compilation of big data for use in the mining industry;
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Analysis instruments for photogrammetric purposes; Calipers; Computer software for calculation of operational and status data collected from mining tools for use in determining the driving accuracy and efficiency of well-bore engineering and for optimizing the production and life of oil and gas wells; Computer software for oil and gas well drilling analysis; Computer software for the collection of statistical production data for oil and gas well-bore engineering; Computer software for two or three-dimensional simulation for use in oil and gas well-bore engineering; Computer software for use in three-dimensional mapping of well-bores; Data loggers; Electronic data recorders for calipers; Programmable electronic data acquisition and control apparatus for use in determining the driving accuracy and efficiency of well-bore engineering and for optimizing the production and life of oil and gas wells; Software for the integration of artificial intelligence and machine learning in the field of big data; Surveying instruments; (1) Business intelligence consulting services; Business data management consultancy in information analysis; Compilation of statistical data for use in scientific and oil and gas research; Data processing services in the field of mining; Providing business intelligence services in the field of oil and gas mining exploration;
(2) Analysis in the field of oil exploration; Analysis of geological mining data namely numerical processing through Big Data analytics applied to mining exploration; Analysis services for oil field exploration; Cartography and mapping services; Computer programming; Data migration services; Geological prospecting; Geophysical exploration for the mining industry; Geophysical exploration for the oil, gas and mining industries; Industrial data mining analysis and research services; Maintenance of computer software; Mine exploration; Consulting services in the field of mining exploration; Consulting services in the field of mining engineering; Consulting services in the field of mining surveying; Mining surveying; Oil and gas well environmental analysis; Oil field analysis; Provision of scientific information, advice and consultancy in relation to mining exploration; Scientific analysis of mining research data and statistics regarding mining exploration sites; Statistical evaluation of geological data from mining research; Surveying of mines; Analysis of mining research data and statistics; Business data analysis for the compilation of big data for use in the mining industry;
Apparatus for measuring the profile of a wellbore includes a cylindrical body having first and second ends threaded for connection in line with a drill string. A passage extends through the body between the first and second ends. A plurality of arms are pivotally coupled on an outer surface of the cylindrical body. Each of the arms is biased to pivot so as to move a free end of the arm to move radially away from the outer surface of the body. The plurality of arms are angularly spaced apart around the cylindrical body and arranged in a plurality of tiers. Each of the tiers comprises three or more of the arms. The tiers are spaced apart axially from one another along the cylindrical body. Sensors are operable to directly or indirectly measure radial extension of each of the arms from the cylindrical body. A holding mechanism is operable to hold the arms in a retracted configuration and to selectively release the arms to pivot away from the cylindrical body. The arms may be extended while withdrawing a drillstring containing the apparatus from a wellbore to monitor a profile of a wall of the wellbore.
An apparatus for measuring a well bore wall comprises a casing connectable in line with a tool string having a central passage therethrough and extending between first and second ends and a plurality of longitudinally extending biasing elements extending longitudinally along the casing between first and second ends wherein each of the second end of the biasing elements is connected to the casing. The apparatus further comprises a sensor located along a midpoint of each of the biasing elements and an engagement body located within the central passage of the casing longitudinally displaceable therein between first and second positions, wherein the engagement body is connected to the first end of each of the biasing elements such that displacement of the engagement body within the central passage from the first to the second positions compresses and radially extends the biasing elements so as to engage the sensors against the well bore wall.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
E21B 45/00 - Measuring the drilling time or rate of penetration
E21B 47/022 - Determining slope or direction of the borehole, e.g. using geomagnetism
