Abstract: Techniques according to the present disclosure include moving an untethered downhole tool through a wellbore between a terranean surface and a particular depth in the wellbore; during the moving the untethered downhole tool through the wellbore, acquiring a set of sensed data from one or more sensors in the untethered downhole tool in a time domain; transforming the plurality of data values associated with the wellbore parameter in the time-domain into a plurality of data values associated with the wellbore parameter in a depth-domain based at least in part on at least one accelerometer output and the locations of a plurality of casing collars; and preparing the plurality of data values associated with the wellbore parameter in the depth-domain for presentation on a graphical user interface (GUI).

Abstract: A system and method map a borehole using LIDAR. The system comprises a tool and a mapping sub-system. The tool includes an intermediate LIDAR sub-system and a distal LIDAR sub-system. The intermediate LIDAR sub-system has an intermediate emitter and an intermediate receiver. The intermediate emitter emits light and the intermediate receiver receives reflected light from the intermediate object. The distal LIDAR sub-system has a distal emitter and a distal receiver. The distal emitter emits light, and the distal receiver receives reflected light from the distal object. The mapping sub-system determines a position of the tool, determines an inner surface of the borehole, and generates and outputs a map of the borehole from the position and the inner surface. A method comprises steps performed during operation of the system.

Abstract: A system and method use a sensor embedded in flexible tape to monitor for corrosion of a structure, such as a conveyance line in a well. The system comprises the structure, a spool, a flexible tape, a sensor, a spool driver, and a processor. The structure includes a window adjacent to an element under test. The flexible tape is retained by the spool. The sensor is embedded in the tape, with the sensor being configured to detect a corrosion of the element and to generate corresponding sensor data. The spool driver is coupled to the spool and advances the tape from the spool to position the sensor adjacent to the window, thereby to position the sensor adjacent to the element to detect the corrosion. The processor is configured by code stored therein to receive the sensor data and to generate and output an alert of the detected corrosion.

Abstract: A method for well log data interpretation includes obtaining well data by a well log interpreter and determining, automatically by the well log interpreter, a plurality of machine-learning models corresponding to the well data based on a plurality of well data type. Additionally, the method includes determining, by the well log interpreter and in real-time, preview data regarding a well operation using the machine-learning models, and transmitting, by the well log interpreter to a user device, an interpretation report comprising the preview data. A system for well log data interpretation includes a logging system coupled to a plurality of logging tools, a logging system coupled to a plurality of logging tools, a drilling system coupled to the logging system, and a well log interpreter comprising a computer processor. The well log interpreter is coupled to the logging system and the drilling system. The well log interpreter comprising functionality for performing the well log data interpretation method.

Abstract: A method and a system for well log data quality control is disclosed. The method includes obtaining a well log data regarding a geological region of interest, verifying an integrity and a quality of the well log data, determining the quality of the well log data based on a quality score of the well log data and making a determination regarding the access to the databases based on the quality of data. Additionally, the method includes performing the statistical analysis and the classification of well log data, a predictive and a prescriptive analysis of trends and predictions of the well log data, and generating an action plan for datasets with unsatisfactory quality scores.

Abstract: A downhole tool includes a body configured to move in a wellbore formed from a terranean surface to a subterranean formation in a direction downhole of the terranean surface independent of a downhole conveyance attached to the body; one or more sensors positioned in the body, the one or more sensors configured to measure a value associated with at least one of the wellbore or the terranean surface; and at least one mass positioned in the body and configured to adjust an orientation of the body in response to one or more forces acting on the body as the downhole tool moves in the wellbore in the direction downhole of the terranean surface.

Abstract: A method for configuring a logging module for logging sensors deployment based on a sensing data acquisition objective includes selecting a tool body, selecting at least one type of sensor, and selecting at least one type of roller. The method also includes incorporating the at least one selected type of sensor onto the at least one selected type of roller to provide at least one sensor roller, and mounting the at least one sensor roller into a compressible mounting assembly provided in the tool body to provide the logging module.

Abstract: Fluids are pumped into the wellbore by pulsing the fluids at a variable, positive pressure relative to the geologic formation until a first pressure threshold in the first fracture zone is satisfied. The pumping results in a first pressure profile in the first fracture zone representing pressures in the first fracture zone over time responsive to the pumping, and a second pressure profile in the second zone representing pressures in the second zone over time responsive to the pumping. In response to determining that the first pressure threshold is satisfied, the fluids are ceased to pump into the wellbore for a duration of time. After the duration of time, the fluids are re-pumped into the wellbore by pulsing the fluids at the variable, positive pressure relative to the geologic formation until a second pressure threshold in the first fracture zone in the first fracture zone is satisfied.

Abstract: A method for locating a casing collar in a well is disclosed. The method includes lowering an accelerometer into the well to slide along a casing wall of the well, generating a data log by measuring an accelerometer signal from the accelerometer as the accelerometer slides along the casing wall, analyzing, by a computer processor, the data log with respect to a predetermined data feature to detect an accelerometer signal event, and determining, by the computer processor and based on the accelerometer signal event, a location of the casing collar in the well.

Abstract: Techniques for testing a wellbore tubular system include positioning a primary wellbore tubular that includes an inner volume on at least one fixed mount positioned to support the primary wellbore tubular; positioning a secondary wellbore tubular concentrically or eccentrically within at least a portion of the inner volume of the primary wellbore tubular; coupling the secondary wellbore tubular on an adjustable stand positioned to support the secondary wellbore tubular; running a logging tool within an inner volume of the secondary wellbore tubular; detecting at least one defect of at least one of the primary wellbore tubular or the secondary wellbore tubular; and moving the secondary wellbore tubular within the inner volume of the primary wellbore tubular on a roller of the at least one adjustable stand.

Abstract: Fluids are pumped into the wellbore by pulsing the fluids at a variable, positive pressure relative to the geologic formation until a first pressure threshold in the first fracture zone is satisfied. The pumping results in a first pressure profile in the first fracture zone representing pressures in the first fracture zone over time responsive to the pumping, and a second pressure profile in the second zone representing pressures in the second zone over time responsive to the pumping. In response to determining that the first pressure threshold is satisfied, the fluids are ceased to pump into the wellbore for a duration of time. After the duration of time, the fluids are re-pumped into the wellbore by pulsing the fluids at the variable, positive pressure relative to the geologic formation until a second pressure threshold in the first fracture zone in the first fracture zone is satisfied.

Abstract: Fluids are pumped into the wellbore by pulsing the fluids at a variable, positive pressure relative to the geologic formation until a first pressure threshold in the first fracture zone is satisfied. The pumping results in a first pressure profile in the first fracture zone representing pressures in the first fracture zone over time responsive to the pumping, and a second pressure profile in the second zone representing pressures in the second zone over time responsive to the pumping. In response to determining that the first pressure threshold is satisfied, the fluids are ceased to pump into the wellbore for a duration of time. After the duration of time, the fluids are re-pumped into the wellbore by pulsing the fluids at the variable, positive pressure relative to the geologic formation until a second pressure threshold in the first fracture zone in the first fracture zone is satisfied.

Abstract: Fluids are pumped into the wellbore by pulsing the fluids at a variable, positive pressure relative to the geologic formation until a first pressure threshold in the first fracture zone is satisfied. The pumping results in a first pressure profile in the first fracture zone representing pressures in the first fracture zone over time responsive to the pumping, and a second pressure profile in the second zone representing pressures in the second zone over time responsive to the pumping. In response to determining that the first pressure threshold is satisfied, the fluids are ceased to pump into the wellbore for a duration of time. After the duration of time, the fluids are re-pumped into the wellbore by pulsing the fluids at the variable, positive pressure relative to the geologic formation until a second pressure threshold in the first fracture zone in the first fracture zone is satisfied.

Abstract: Fluids are pumped into the wellbore by pulsing the fluids at a variable, positive pressure relative to the geologic formation until a first pressure threshold in the first fracture zone is satisfied. The pumping results in a first pressure profile in the first fracture zone representing pressures in the first fracture zone over time responsive to the pumping, and a second pressure profile in the second zone representing pressures in the second zone over time responsive to the pumping. In response to determining that the first pressure threshold is satisfied, the fluids are ceased to pump into the wellbore for a duration of time. After the duration of time, the fluids are re-pumped into the wellbore by pulsing the fluids at the variable, positive pressure relative to the geologic formation until a second pressure threshold in the first fracture zone in the first fracture zone is satisfied.

Abstract: Fluids are pumped into the wellbore by pulsing the fluids at a variable, positive pressure relative to the geologic formation until a first pressure threshold in the first fracture zone is satisfied. The pumping results in a first pressure profile in the first fracture zone representing pressures in the first fracture zone over time responsive to the pumping, and a second pressure profile in the second zone representing pressures in the second zone over time responsive to the pumping. In response to determining that the first pressure threshold is satisfied, the fluids are ceased to pump into the wellbore for a duration of time. After the duration of time, the fluids are re-pumped into the wellbore by pulsing the fluids at the variable, positive pressure relative to the geologic formation until a second pressure threshold in the first fracture zone in the first fracture zone is satisfied.