A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.

A contactless orientation system coupled with an inner core tube to one or more record carriers on or associated with a core sample held in the core tube having a longitudinal core axis and a core face accessible from an end of the inner core tube. An instrument guide is coupled to the end of the core tube from which the core face is accessible with an axis of the guide parallel to the core axis. Correlation information is generated between a rotational orientation of a known point P on the instrument guide about the guide axis and core orientation data known to the contactless orientation system. The instrument acts as the record carrier or generates the record carrier provided with the correlation information enabling orientation of the core sample to its in-situ orientation when released from the core tube.

An NMR based wettability index determination method for CO.sub.2-liquid-solid system for CO2 and liquid phase wettability assessment may comprise acquiring .sup.1H NMR relaxation time measurements, analyzing brine signals for the comparable brine-filled pores from various step, applying a wettability index model constructed with NMR alone and calibrated with another wettability measurement, and applying the wettability index model to interpret wettability of CO2-containing rock system from corresponding NMR measurements.

A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.

A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.

A coring tool includes a coring bit to cut and detach a core sample from a subsurface formation formed in a borehole. The coring tool includes a pressure vessel that includes a core chamber to store the core sample at a pressure and a piston positioned adjacent to the core chamber. The pressure vessel includes a chamber adjacent to the piston and a gas reservoir to store a gas that expands as the gas is moved to a surface of the borehole. The pressure vessel includes a valve coupled to an inlet of the chamber and an outlet of the gas reservoir, wherein the gas is to flow into the chamber when the valve is open to move the piston to cause an increase in the pressure of the core chamber.

A method and apparatus for recovering cores from downhole environments where down hole environmental parameters are measured during coring operations to maximize the success of core recovery.

A method and apparatus for recovering cores from downhole environments where down hole environmental parameters are measured during coring operations to maximize the success of core recovery.

A system for generating artificial permeability during the completion phase may include sensors that capture real-time data pertaining to a reservoir parameter, a formation parameter, or a tool condition parameter. The system may also include a drilling tool arranged in a wellbore to drill, using side drill bits, paths into a formation zone based on a drilling program. The system may also include an access module to access the real-time data captured by the sensors inside the well. The system may also include one or more processors configured to arrange the drilling tool in the wellbore, in proximity to the formation zone. The one or more processors may also be configured to cause an operation of the drilling tool based on the drilling program, update the drilling program based on the real-time sensor data, and cause an adjustment of the drilling of the paths based on the updated drilling program.

A system for generating artificial permeability during the completion phase may include sensors that capture real-time data pertaining to a reservoir parameter, a formation parameter, or a tool condition parameter. The system may also include a drilling tool arranged in a wellbore to drill, using side drill bits, paths into a formation zone based on a drilling program. The system may also include an access module to access the real-time data captured by the sensors inside the well. The system may also include one or more processors configured to arrange the drilling tool in the wellbore, in proximity to the formation zone. The one or more processors may also be configured to cause an operation of the drilling tool based on the drilling program, update the drilling program based on the real-time sensor data, and cause an adjustment of the drilling of the paths based on the updated drilling program.