E21B47/007

CALIBRATION OF DRILLSTRING WEIGHT WITH DRAG FOR FRICTION FACTOR ESTIMATION
20230054050 · 2023-02-23 ·

A method comprises determining a value of at least one oppositional force for a drillstring at multiple depths in the wellbore, determining a value of a drag force for the drillstring at the multiple depths, determining a value of hook load for the drillstring at the multiple depths based on the value of the at least one opposition force and the value of the drag force at the multiple depths, and determining a calibrated drillstring weight based on a change in the value of the hook load over the multiple depths. From the calibrated drillstring weight, an adjusted estimated hook load can be determined. The drag force can be calculated based on a drag per centralizer and the number of centralizers in the wellbore. A centralizer friction factor can be determined and used to calibrate the value of the drag per centralizer.

Methods, systems, and storage media for predicting physical changes to a wellhead in an aquatic volume of interest
11499413 · 2022-11-15 · ·

Methods, systems, and storage media for predicting physical changes to a wellhead coupled to a riser in an aquatic volume of interest are disclosed. Exemplary implementations may: obtain training data; obtain a machine learning algorithm; generate a riser response model by applying a machine learning algorithm to the training data; store the riser response model, obtain target environmental data, target tension data, and target mud data, generate predicted riser response data, transform predicted riser response data, generate a representation, and display the representation.

Methods, systems, and storage media for predicting physical changes to a wellhead in an aquatic volume of interest
11499413 · 2022-11-15 · ·

Methods, systems, and storage media for predicting physical changes to a wellhead coupled to a riser in an aquatic volume of interest are disclosed. Exemplary implementations may: obtain training data; obtain a machine learning algorithm; generate a riser response model by applying a machine learning algorithm to the training data; store the riser response model, obtain target environmental data, target tension data, and target mud data, generate predicted riser response data, transform predicted riser response data, generate a representation, and display the representation.

Devices, systems, and methods for wireless data acquisition during drilling operations

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.

Apparatus and method for predicting a deformed shape of a structure

An apparatus for predicting a deformed shape of a structure, and method of operating and forming the same. In an embodiment, the apparatus is formed with a riser with ends coupled respectively to an upper location and a lower location. The apparatus includes sensors configured to sense an inclination of the riser at riser nodes positioned on the riser between the upper location and the lower location. The apparatus further includes a data processing system configured to produce an estimate of a deformed shape of the riser employing deformed shaped functions to represent, respectively, the estimate of the deformed shape of the riser above and below the riser nodes.

Apparatus and method for predicting a deformed shape of a structure

An apparatus for predicting a deformed shape of a structure, and method of operating and forming the same. In an embodiment, the apparatus is formed with a riser with ends coupled respectively to an upper location and a lower location. The apparatus includes sensors configured to sense an inclination of the riser at riser nodes positioned on the riser between the upper location and the lower location. The apparatus further includes a data processing system configured to produce an estimate of a deformed shape of the riser employing deformed shaped functions to represent, respectively, the estimate of the deformed shape of the riser above and below the riser nodes.

Drilling system having wireless sensors

An example method for monitoring drilling includes releasing a wireless data retrieval device within a drill string in a wellbore, forcing fluid downhole through the drill string such that the data retrieval device travels in the fluid through a fluid outlet in a drill bit connected to the drill string, receiving data in the data retrieval device from a wireless sensor disposed on or in a body of the drill bit, and transferring the data from the data retrieval device after the data retrieval device travels in the fluid through the fluid outlet. An example wellbore drilling system includes a drill bit that includes a body, a fluid outlet, one or more wireless sensors disposed on or in the body, and a waterproof data retrieval device configured to receive data wirelessly from the wireless sensor(s), the data retrieval device having a size smaller than an opening in the fluid outlet.

Drilling system having wireless sensors

An example method for monitoring drilling includes releasing a wireless data retrieval device within a drill string in a wellbore, forcing fluid downhole through the drill string such that the data retrieval device travels in the fluid through a fluid outlet in a drill bit connected to the drill string, receiving data in the data retrieval device from a wireless sensor disposed on or in a body of the drill bit, and transferring the data from the data retrieval device after the data retrieval device travels in the fluid through the fluid outlet. An example wellbore drilling system includes a drill bit that includes a body, a fluid outlet, one or more wireless sensors disposed on or in the body, and a waterproof data retrieval device configured to receive data wirelessly from the wireless sensor(s), the data retrieval device having a size smaller than an opening in the fluid outlet.

Inventory system

A method and system for conducting a subterranean operation that can include storing, via a rig controller, pre-determined characteristics of a piece of equipment, for supporting the subterranean operation, in a unique data record associated with the piece of equipment; scanning, via one or more sensors, the piece of equipment on a rig; determining, via the rig controller, actual characteristics of the piece of equipment in response to the scanning via the one or more sensors; comparing, via the rig controller, the actual characteristics to the pre-determined characteristics; and verifying whether or not the piece of equipment is an expected piece of equipment needed to support the subterranean operation based on the comparing.

COMBINED SOFT AND STIFF-STRING TORQUE AND DRAG MODEL
20230100038 · 2023-03-30 · ·

Aspects of the disclosed technology provide techniques for determining frictional forces bearing on a downhole drill string. In some implementations, a method of the disclosed technology can include steps for segmenting a plurality of continuous nodes of the drilling string into a first segment and a second segment, computing a first set of values corresponding with one or more nodes in the first segment using a first model, computing a second set of values corresponding with one or more nodes in the second segment using a second model, and determining a torque of the drill string based on the first set of values and the second set of values. In some aspects, the method can further include steps for determining a drag force on the drill string based on the first set of values and the second set of values. Systems and machine-readable media are also provided.