# US 12,110,786 B1 · Battery-operated position sensor assembly for wellbore intervention > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,786 B1 - Document ID: US12110786B1 - Status: Granted - Kind: B1 - Application number: 18/357,016 - Filed: 2023-07-21 - Granted: 2024-10-08 - Earliest claimed: 2023-07-21 - Assignees: Saudi Arabian Oil Company - Applicants: Saudi Arabian Oil Company - Inventors: Hassan S. Al-Qarni; Mohammed H. Madan; Jawad Zahur; Saud A. Al-Shuwaier - Web page: https://patentgrep.com/patent/US12110786B1 ## CPC - E21B 47/09: Locating or determining the position of objects in boreholes or wells {, e.g. the position of an extending arm}; Identifying the free or blocked portions of pipes - E21B 47/017: Protecting measuring instruments - E21B 47/024: of devices in the borehole (determining slope or direction of the borehole E21B47/022) - E21B 47/04: Measuring depth or liquid level - E21B 47/06: Measuring temperature or pressure - G01V 11/005: {Devices for positioning logging sondes with respect to the borehole wall (centralising devices for drilling rods or pipes E21B17/10; setting or locking tools in boreholes E21B23/00; locating objects in boreholes E21B47/09)} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - G01V: GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B29/02) ## Abstract A sensor assembly includes a position measurement sensor, a slickline, and a processor. The position measurement system measures angular velocity of the sensor assembly inside a wellbore that extends in an axial direction. The slickline raises and lowers the position measurement sensor in the wellbore. The processor executes a series of measurement units including: an inclination measurement unit, a coordinate measurement unit, a depth measurement unit, and a data storage unit. The inclination measurement unit determines an inclination of the position measurement sensor. The coordinate measurement unit determines radial coordinates of the position measurement sensor. The depth measurement unit determines a real-time depth level of the position measurement sensor. Each of the inclination, the radial coordinates, and the real-time depth level are determined from the angular velocity. The data storage unit stores the measured values, including the angular velocity, inclination, radial coordinates, and real-time depth level. ## Claims ### Claim 1 A sensor assembly comprising: a position measurement sensor configured to measure an angular velocity of the sensor assembly inside a wellbore that extends in an axial direction; a slickline configured to raise and lower the position measurement sensor in the wellbore; a processor configured to execute a series of measurement units, the series of measurement units comprising: an inclination measurement unit configured to determine, based upon the angular velocity measured by the position measurement sensor, an inclination of the position measurement sensor inside the wellbore; a coordinate measurement unit configured to determine, based upon the angular velocity measured by the position measurement sensor, radial coordinates of the sensor assembly inside the wellbore, the radial coordinates defining a location of the position measurement sensor in the wellbore for a radial direction orthogonal to the axial direction; a depth measurement unit configured to determine, based upon the angular velocity measured by the position measurement sensor, a real-time depth level of the sensor assembly inside the wellbore, and a data storage unit configured to store a plurality of values, the plurality of values comprising the angular velocity, the inclination, the radial coordinates, and the real-time depth level of the position measurement sensor. ### Claim 2 (depends on 1) The sensor assembly of claim 1, wherein a reference position for the position measurement sensor is a surface where the wellbore originates. ### Claim 3 (depends on 1) The sensor assembly of claim 1, further comprising: a battery configured to provide power to the position measurement sensor. ### Claim 4 (depends on 3) The sensor assembly of claim 3, wherein the battery is disposed on a slickline tool. ### Claim 5 (depends on 1) The sensor assembly of claim 1, wherein the sensor is placed at a predetermined distance from a pressure gauge configured to measure a downhole pressure of the wellbore. ### Claim 6 (depends on 1) The sensor assembly of claim 1, wherein the data storage unit is configured to be detached from the sensor assembly to receive the plurality of values. ### Claim 7 (depends on 1) The sensor assembly of claim 1, wherein the sensor assembly further comprises a casing formed of tempered steel, which is configured to operate in high-temperature environments. ### Claim 8 (depends on 1) The sensor assembly of claim 1, wherein the position measurement sensor is disposed surrounding a fishneck attached to the slickline. ### Claim 9 (depends on 1) The sensor assembly of claim 1, wherein the position measurement sensor comprises a gyroscope. ### Claim 10 (depends on 1) The sensor assembly of claim 1, wherein the series of measurement units are stored on a memory comprising a non-transient storage medium. ### Claim 11 A method to perform a plurality of measurements in a wellbore, the method comprising: measuring, via a position measurement sensor, an angular velocity of a sensor assembly extending inside the wellbore in an axial direction; raising and lowering, via a slickline, the position measurement sensor in the wellbore; executing, via a processor, a series of measurement units, the series of measurement units comprising: determining, via an inclination measurement unit based upon the angular velocity measured by the position measurement sensor, an inclination of the position measurement sensor inside the wellbore; determining, via a coordinate measurement unit based upon the angular velocity measured by the position measurement sensor, radial coordinates of the sensor assembly inside the wellbore, the radial coordinates defining a location of the position measurement sensor in the wellbore for a radial direction orthogonal to the axial direction; determining, via a depth measurement unit configured to determine based upon the angular velocity measured by the position measurement sensor, a real-time depth level of the sensor assembly inside the wellbore, and storing, via a data storage unit, a plurality of values, the plurality of values comprising the angular velocity, the inclination, the radial coordinates, and the real-time depth level of the position measurement sensor. ### Claim 12 (depends on 11) The method of claim 11, further comprising: establishing a reference position for the position measurement sensor is a surface where the wellbore originates. ### Claim 13 (depends on 11) The method of claim 11, further comprising: providing power, via a battery, to the position measurement sensor. ### Claim 14 (depends on 13) The method of claim 13, further comprising: disposing the battery on a slickline tool. ### Claim 15 (depends on 11) The method of claim 11, further comprising: placing the sensor at a predetermined distance from a pressure gauge configured to measure a downhole pressure of the wellbore. ### Claim 16 (depends on 11) The method of claim 11, further comprising: detaching the data storage unit from the sensor assembly and receiving the plurality of values. ### Claim 17 (depends on 11) The method of claim 11, further comprising: protecting the sensor assembly in a casing formed of tempered steel, configured to operate in high-temperature environments. ### Claim 18 (depends on 11) The method of claim 11, further comprising: disposing the position measurement sensor surrounding a fishneck attached to the slickline. ### Claim 19 (depends on 11) The method of claim 11, wherein the position measurement sensor comprises a gyroscope. ### Claim 20 (depends on 11) The method of claim 11, further comprising: storing the series of measurement units on a memory comprising a non-transient storage medium.