E21B25/00

Subterranean coring assemblies

A subterranean coring assembly can include a body having at least one wall that forms a cavity, wherein the cavity has a top end and a bottom end. The subterranean coring assembly can also include a first flow regulating device movably disposed within the cavity, where the first flow regulating device is configured to move from a first default position to a first position within the cavity based on first flow characteristics of fluid that flows into the top end of the cavity toward the bottom end of the cavity.

Interchangeable dismountable hinged box for storing core samples

An interchangeable dismountable hinged box for storing core samples is provided that is particularly used in the field of the collection of mineral materials, deriving from geological exploration activities, for subsequent analysis. The interchangeable dismountable hinged box has modular walls that can be fitted interchangeably with a base allowing for the hinging of these walls between a parallel position and a position perpendicular to the base. The box has at least one storage compartment for core samples defined between two modular transversal walls and two modular longitudinal walls, and may contain additional storage compartments, obtained by interlocking interchangeable partitions with modular walls. The box is adaptable for meeting the need for storing core samples of varying diameters.

ALL-TERRAIN VEHICLE
20170259633 · 2017-09-14 ·

An all-terrain rover has a ladder frame having one or more crosspieces, two drive units connected on opposite sides of the frame, first and second auger cylinders engaged with the drive units so as to be urged into rotation by the drive units, each cylinder comprising a sealed hollow cylinder; and a spiral auger flange affixed to the exterior of the cylinder, wherein the drive units are in contact with the axes of the auger cylinders are parallel and the flange of the first cylinder is wound in an opposite direction to the flange of the second cylinder, and wherein the cylinders are each counter-rotated to urge the rover forward. In one embodiment sampling equipment is mounted on the frame. In another, each cylinder further comprises a conical end cap at each end. Each cylinder may have a frustaconical end cap at each end, and each cylinder may be buoyant.

MOON-BASED IN-SITU CONDITION-PRESERVED CORING MULTI-STAGE LARGE-DEPTH DRILLING SYSTEM AND METHOD THEREFOR

A moon-based in-situ condition-preserved coring multi-stage large-depth drilling system and method therefor. The system includes a rotary plate provided inside a lander, an in-situ condition-preserved coring tool provided on a surface of the rotary plate, a space frame provided on a surface of the rotary plate, a working platform provided on a top of the space frame, a mechanical arm provided on a bottom surface of the working platform, and a camera provided on the bottom surface of the working platform, the mechanical arm is fixedly connected to the working platform, and the camera is fixedly connected to the working platform. By controlling the mechanical arm to place the in-situ condition-preserved coring tool on the moon surface, and using the in-situ condition-preserved coring tool to sample the lunar soil on the moon surface, the coring operation problem of the lunar soil is solved.

MOON-BASED IN-SITU CONDITION-PRESERVED CORING MULTI-STAGE LARGE-DEPTH DRILLING SYSTEM AND METHOD THEREFOR

A moon-based in-situ condition-preserved coring multi-stage large-depth drilling system and method therefor. The system includes a rotary plate provided inside a lander, an in-situ condition-preserved coring tool provided on a surface of the rotary plate, a space frame provided on a surface of the rotary plate, a working platform provided on a top of the space frame, a mechanical arm provided on a bottom surface of the working platform, and a camera provided on the bottom surface of the working platform, the mechanical arm is fixedly connected to the working platform, and the camera is fixedly connected to the working platform. By controlling the mechanical arm to place the in-situ condition-preserved coring tool on the moon surface, and using the in-situ condition-preserved coring tool to sample the lunar soil on the moon surface, the coring operation problem of the lunar soil is solved.

HYDROCARBON EVALUATION SYSTEMS
20210396134 · 2021-12-23 · ·

Systems and methods for evaluating hydrocarbon properties. At least one of the systems includes: a drilling machine configured to drill a borehole; a plurality of infrared cameras configured to capture infrared image data representing a plurality of infrared images of at least one core sample extracted from the borehole; a computer-readable memory comprising computer-executable instructions; and at least one processor configured to execute the computer-executable instructions, in which when the at least one processor is executing the computer-executable instructions, the at least one processor is configured to carry out operations including: receiving the infrared image data captured by the plurality of infrared cameras; determining, based on the infrared image data, at least one hydrocarbon weight value of the at least one core sample.

Analyzing fluids in core samples contained in pressurized NMR core holders with 1H and 19F NMR

Pressure coring where the core apparatus drills the core sample and seals the core sample at its native downhole pressure (e.g., several thousand psi) may be expanded to include nuclear magnetic resonance (NMR) imaging components to produce a pressurized NMR core holder that allows for NMR imaging of the core samples having been maintained in a downhole fluid saturation state. NMR imaging performed may include 1H and also 19F imaging depending on the chamber fluid used in the pressurized NMR core holder.

Analyzing fluids in core samples contained in pressurized NMR core holders with 1H and 19F NMR

Pressure coring where the core apparatus drills the core sample and seals the core sample at its native downhole pressure (e.g., several thousand psi) may be expanded to include nuclear magnetic resonance (NMR) imaging components to produce a pressurized NMR core holder that allows for NMR imaging of the core samples having been maintained in a downhole fluid saturation state. NMR imaging performed may include 1H and also 19F imaging depending on the chamber fluid used in the pressurized NMR core holder.

METHOD AND SYSTEM OF FRACABILITY MEASUREMENT BASED ON CORE FRACTURE DENSITY
20210389499 · 2021-12-16 · ·

A method for generating a fracability model of a subterranean formation. The method includes coring and collecting rock cores from a plurality of geographical locations in the subterranean formation, capturing a plurality of core images of the rock cores, generating, by a computer processor and based on the plurality of core images, a plurality of artificial fracture counts of the rock cores, computing, by the computer processor and based on the plurality of artificial fracture counts, a first fracture density curve corresponding to a first geographical location of the plurality of geographical locations, generating, by the computer processor and based on the first fracture density curve, a first fracability measure curve of the rock cores, and generating, by the computer processor and based at least on the first fracability measure curve, a fracability model of the subterranean formation.

METHOD AND SYSTEM OF FRACABILITY MEASUREMENT BASED ON CORE FRACTURE DENSITY
20210389499 · 2021-12-16 · ·

A method for generating a fracability model of a subterranean formation. The method includes coring and collecting rock cores from a plurality of geographical locations in the subterranean formation, capturing a plurality of core images of the rock cores, generating, by a computer processor and based on the plurality of core images, a plurality of artificial fracture counts of the rock cores, computing, by the computer processor and based on the plurality of artificial fracture counts, a first fracture density curve corresponding to a first geographical location of the plurality of geographical locations, generating, by the computer processor and based on the first fracture density curve, a first fracability measure curve of the rock cores, and generating, by the computer processor and based at least on the first fracability measure curve, a fracability model of the subterranean formation.