Systems and methods for drilling a borehole into the earth are provided. The systems and methods include drilling a first portion of a borehole with a drilling system comprising a disintegrating device, the first portion extending from the surface to a subsurface reference point, wherein steering within the first portion is performed based on a first coordinate system with a first origin, creating a second coordinate system, wherein the second coordinate system has a second origin that is related to subsurface reference point, and drilling a second portion of the borehole with the drilling system, wherein steering within the second portion is performed based on the second coordinate system.

The present disclosure describes computer-implemented method for monitoring a well operation, the method including: accessing a plurality of streams of data received from multiple sources during the well operation, wherein: the multiple sources include a well testing process, a biosteering process, a geosteering process, and a drilling process, and the well operation includes sidetracking and drilling one or more laterals from a motherbore; combining the plurality of streams of data on a single montage with a common horizontal axis to track the one or more laterals from the motherbore; and presenting the single montage on a display device to an operator running the well operation.

A method for forming a wellbore in an earth formation includes positioning a drill string in a wellbore; the drill string including a bottom hole assembly (BHA) that includes a steering unit, one or more sensors responsive to one or more formation properties, and one or more sensors responsive to the current orientation of the BHA in a wellbore. The method also includes receiving information from the BHA related to the formation properties and information related to a current orientation of the BHA in the wellbore and processing the information using computing device that is either a programmable optical computing device or a quantum computing device. The computing device calculates the position of formation features with respect to current wellbore position in real time and compare the current position to a prescribed path.

Various embodiments include apparatus and methods of processing and geosteering with respect to well logging. Apparatus and methods may include acquiring signals generated from operating a tool rotating in a borehole of a well, where the tool includes a receiver antenna tilted with respect to the longitudinal axis of the tool and two transmitter antennas. The acquired signals can be processed with respect to a direction in the rotation of the tool to determine properties associated with a formation and/or to determine a geosignal for geosteering a drilling operation.

Various embodiments include apparatus and methods of processing and geosteering with respect to well logging. Apparatus and methods may include acquiring signals generated from operating a tool rotating in a borehole of a well, where the tool includes a receiver antenna tilted with respect to the longitudinal axis of the tool and two transmitter antennas. The acquired signals can be processed with respect to a direction in the rotation of the tool to determine properties associated with a formation and/or to determine a geosignal for geosteering a drilling operation.

The invention relates to a device for determining the depth and orientation of a feature in a wellbore, and to a corresponding method. It also relates to a downhole apparatus for performing an operation in a well comprising a device for determining the depth and orientation of a feature in a wellbore and a device for performing the operation. In an embodiment, a downhole device (42) for determining the depth and orientation of a feature (24, 26, 28) in a wellbore (12) containing a ferrous tubing (14) is disclosed, the device comprising: at least one magnetic field sensor (44) for monitoring the inherent magnetic field of the ferrous tubing so that the presence of the feature can be detected; and at least one orientation sensor (48) for determining the orientation of the device within the wellbore. An output from the at least one magnetic field sensor is correlated with an output from the at least one orientation sensor so that the orientation of the feature detected by the at least one magnetic field sensor within the wellbore can be determined.

The invention relates to a device for determining the depth and orientation of a feature in a wellbore, and to a corresponding method. It also relates to a downhole apparatus for performing an operation in a well comprising a device for determining the depth and orientation of a feature in a wellbore and a device for performing the operation. In an embodiment, a downhole device (42) for determining the depth and orientation of a feature (24, 26, 28) in a wellbore (12) containing a ferrous tubing (14) is disclosed, the device comprising: at least one magnetic field sensor (44) for monitoring the inherent magnetic field of the ferrous tubing so that the presence of the feature can be detected; and at least one orientation sensor (48) for determining the orientation of the device within the wellbore. An output from the at least one magnetic field sensor is correlated with an output from the at least one orientation sensor so that the orientation of the feature detected by the at least one magnetic field sensor within the wellbore can be determined.

An innovative apparatus and computer implemented methods to obtain values for a set of scalars corresponding to each force and displacement, which may be obtained from acoustical signals captured by sensors of a drill bit while drilling, in a material of known mechanical properties, such as a cement from casing the well, such that the application and use of the scalars in relation to measurements of the mechanics while drilling, such as the acceleration of the bit and motion of the bit captured by sensors such as accelerometers, allow for absolute values of mechanical rock properties to be obtained in rock formations, being drilled through, with otherwise unknown mechanical properties prior to drilling.

This disclosure provides a downhole drilling system, which comprises a downhole motor, a universal-joint assembly comprising an upper universal joint and a lower universal and a connecting rod connecting the upper universal joint and the lower universal joint, and a measurement sub. The measurement sub is disposed about the connecting rod and the connecting rod extends through the measurement sub in a longitudinal direction thereof.

Systems and methods are provided for geosteering in directional drilling based on water detection. An exemplary method includes determining a signal-to-noise ratio (SNR) for an electromagnetic communication between devices on a bottom hole assembly, and determining a distance to water based, at least in part, on the SNR. Adjustments to geosteering vectors for the bottom hole assembly are determined based, at least in part, on the distance to water.