Adaptive drilling vibration diagnostics

Patent metadata

Field	Value
Publication number	US-2016115778-A1
Application number	US-201514920712-A
Country	US
Kind code	A1
Filing date	Oct 22, 2015
Priority date	Oct 27, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

The disclosure relates to an adaptive system for diagnosing vibrations during drilling including a drilling assembly at least partially located in a wellbore, a sensor located in the wellbore, and a data processing unit. The drilling assembly may drill the wellbore. The sensor may detect high frequency data reflecting vibrations in the drilling assembly. The data processing unit may execute a classification model based on machine learning techniques which uses features extracted from the high frequency data to diagnose the type or intensity of a vibration or both in the drilling assembly. The disclosure further relates to an adaptive method of diagnosing vibrations during drilling by collecting high frequency data reflecting vibrations in a drilling assembly, extracting at least one feature from the high frequency data, and diagnosing the type of vibration using the at least one extracted feature and a classification model based on machine learning techniques.

First claim

1 . An adaptive system for diagnosing vibrations during drilling comprising:
a drilling assembly at least partially located in a wellbore; a sensor located in the wellbore; and a data processing unit, wherein the drilling assembly is operable to drill the wellbore and the sensor in the wellbore is operable to detect high frequency data reflecting vibrations in the drilling assembly; wherein the data processing unit is operable to execute a classification model based on machine learning techniques which uses features extracted from the high frequency data to diagnose the type or intensity of a vibration or both in the drilling assembly.

2 . The system of claim 1 , wherein the drilling assembly comprises a drill string and the sensor is located on or in the drill string.

3 . The system of claim 1 , wherein the sensor is located on an exterior surface of the drill string.

4 . The system of claim 1 , wherein the sensor comprises an accelerometer.

5 . The system of claim 1 , wherein the data processing unit is located at a surface of the wellbore.

6 . The system of claim 1 , wherein the data processing unit is located in the wellbore.

7 . The system of claim 1 , wherein the type of vibration diagnosed is lateral, torsional, or axial.

8 . The system of claim 1 , wherein the features are extracted by the data processing unit.

9 . The system of claim 1 , wherein the system comprises an additional data processing unit the features are extracted by the additional data processing unit.

10 . The system of claim 1 , wherein the classification model based on machine learning techniques has been trained using visually classified data.

11 . The system of claim 1 , wherein the classification model based on machine learning techniques has been trained using classified data generated by a simulation model.

12 . The system of claim 5 , further comprising a mud pulse telemetry system or a wired drill string, wherein the sensor is operable to communicate data to the data processing unit using the mud pulse telemetry system or the wired drill string.

13 . The system of claim 6 , further comprising a mud pulse telemetry system or a wired drill string, wherein the data processing unit is operable to communicate the type of a vibration to a surface of the wellbore using the mud pulse telemetry system or the wired drill string.

14 . The system of claim 6 , further comprising a mud pulse telemetry system or a wired drill string, wherein the data processing unit is operable to also communicate the intensity of a vibration to a surface of the wellbore using the mud pulse telemetry system or the wired drill string.

15 . The system of claim 1 , further comprising a control unit operable to automatically take a corrective action based on the type or intensity of a vibration or both.

16 . The system of claim 1 , further comprising an alarm that activates a signal in response to the type or intensity of a vibration or both.

17 . The system of claim 1 , wherein the high frequency data is used to diagnose vibrations in real time.

18 . An adaptive method of diagnosing vibrations during drilling comprising:
collecting high frequency data reflecting vibrations in a drilling assembly located at least partially in a wellbore using a sensor located in the wellbore; extracting at least one feature from the high frequency data; and diagnosing the type of vibration using the at least one extracted feature and a classification model based on machine learning techniques.

19 . The method of claim 18 , further comprising additionally diagnosing the intensity of vibration using the at least one extracted feature and a classification model based on machine learning techniques.

20 . The method of claim 18 , wherein the classification model based on machine learning techniques has been trained using visually classified data.

21 . The method of claim 18 , wherein the classification model based on machine learning techniques has been trained using classified data generated using a simulation model.

22 . The method of claim 18 , further comprising further training the classification model based on machine learning techniques using the high frequency data or at least one feature and the results of the diagnosing step.

23 . The method of claim 18 , wherein diagnosing is performed in real time.

24 . The method of claim 18 , wherein the vibration diagnosed is lateral, torsional, or axial.

25 . The method of claim 18 , further comprising reducing the amount of data using intelligent data reduction.

Assignees

• Univ Texas

Inventors

• Van Oort Eric
• Baumgartner Theresa
• Ashok Pradeepkumar

Classifications

• E21B47/18

  through the well fluid {, e.g. mud pressure pulse telemetry} · CPC title

• E21B7/00

  Special methods or apparatus for drilling · CPC title

• E21B2200/22

  Fuzzy logic, artificial intelligence, neural networks or the like · CPC title

• E21B12/02

  Wear indicators · CPC title

• E21B44/04

  in response to the torque of the drive {; Measuring drilling torque (E21B44/06 takes precedence; measuring stresses in a well bore pipe E21B47/007)} · CPC title