US 12,601,250 B2 · Monitoring a well barrier

Abstract

A system for wireline service planning and advising includes a receiver, one or more computing system processors, and a transmitter. The receiver is configured to receive, from a user of the system, an objective parameter for interpreting a state of a well barrier. The one or more computing system processors is in communication with the receiver and configured to generate a plurality of candidate services based on the objective parameter and a model of the well barrier, each candidate service specifying sensor data to be acquired using wireline tools, select at least one wireline service from the wireline candidate services based on a selection logic or input by the user, and generate an execution plan specifying operational parameters of the selected wireline service. The transmitter is in communication with the one or more computing system processors and configured to transmit the execution plan to execute the selected wireline service at a wellsite.

A method for monitoring a well barrier of a wellbore formed in a geological formation at a resource site, wherein the well barrier includes at least a casing and an annulus situated between the casing and the geological formation, the method comprising:

receiving, using one or more computing system processors, a model of the wellbore, the model of the wellbore including a plurality of wellbore model parameters, and each wellbore model parameter having a wellbore parameter value and a wellbore parameter value uncertainty;
obtaining an objective parameter having an objective parameter value and an objective parameter uncertainty;
simulating, using the one or more computing system processors, variations of the plurality of wellbore model parameters according to a plurality of scenarios;
computing, using the one or more computing system processors, based on the variations of the plurality of wellbore model parameters, a forecast of the objective parameter associated with each of the plurality of scenarios;
determining, using the one or more computing system processors, sensitivity data regarding respective contributions of the plurality of wellbore model parameters to the objective parameter uncertainty based on the forecast;
identifying, using the one or more computing system processors, a plurality of candidate well integrity services based on the sensitivity data;
simulating, using the one or more computing system processors, variations of the plurality of wellbore model parameters corresponding to simulated performance of the plurality of candidate well integrity services;
computing, using the one or more computing system processors, based on the variations of the plurality of wellbore model parameters, a second forecast of the objective parameter associated with each of the plurality of candidate well integrity services;
ranking, using the one or more computing system processors, based on the second forecast of the objective parameter, the plurality of candidate well integrity services in order of the objective parameter uncertainty;
identifying, using the one or more computing system processors, based on the ranking, at least one recommended well integrity service, from the plurality of candidate well integrity services, that minimizes the objective parameter uncertainty, to perform in the wellbore with a downhole tool, wherein performing the at least one recommended well integrity service comprises capturing sensor data associated with the well barrier;
generating, using the one or more computing system processors, an execution plan comprising one or more operations including at least one operation associated with performing the at least one recommended well integrity service;
executing the execution plan at the resource site, wherein the execution plan includes a control operation of one or more equipment at the resource site;
updating at least one of the plurality of wellbore model parameters to generate an updated model of the wellbore;
and
determining a state of the well barrier based on the updated model of the wellbore.

12 more elements

Facts

Application

17/753,488Filed 4 Sep 2020 · us provisional application

Priority

4 Sep 2019

Published

US 2022/0333477 A120 Oct 2022

Granted

14 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

E21B 47/005
Survey of boreholes or wells: monitoring or checking of cementation quality or level
E21B 44/00
Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which
E21B 47/14
Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging…
E21B 47/16
Using acoustic waves: through the drill string or casing , e.g. by torsional acoustic waves

Monitoring a well barrier

Life of this patent

Monitoring a well barrier

Life of this patent

Abstract

Claims23