公开(公告)号：US20210310480A1

公开(公告)日：2021-10-07

申请号：US16153570

申请日：2018-10-05

Applicant: KELVIN INC.

Inventor： David Bangor ,  Logan Duffy ,  Adam Guetz ,  Tim Jackson ,  Robbie Pratt ,  Peter Harding

IPC: F04B49/22 ,  F04B49/06 ,  F04B47/02 ,  G01H1/00 ,  E21B47/008 ,  E21B43/12 ,  F04B47/12 ,  G01V1/52

Abstract: A method of probabilistically estimating a velocity of a plunger of a beam pump may comprise continuously monitoring well acoustics using a plurality of passive acoustic sensors attached to external structures of the beam pump; digitizing outputs of the plurality of passive acoustic sensors and sending the digitized outputs to a computing device for storage and processing; and using the digitized outputs of the plurality of passive acoustic sensors, estimating a probability of the velocity of the plunger using a hidden Markov model (HMM) to represent a probability of a position and the probability of the velocity of the plunger, the HMM comprising a state space model and an observational model.

公开(公告)号：US10883491B2

公开(公告)日：2021-01-05

申请号：US15338350

申请日：2016-10-29

Applicant: KELVIN, INC.

Inventor： David Bangor ,  Logan Duffy ,  Adam Guetz ,  Tim Jackson ,  Robbie Pratt ,  Peter Harding ,  Niall Wells

IPC: F04B49/22 ,  F04B49/06 ,  F04B47/02 ,  G01H1/00 ,  E21B47/008 ,  E21B43/12 ,  F04B47/12 ,  G01V1/52

Abstract: A method of probabilistically estimating a velocity of a plunger of a beam pump may comprise continuously monitoring well acoustics using a plurality of passive acoustic sensors attached to external structures of the beam pump; digitizing outputs of the plurality of passive acoustic sensors and sending the digitized outputs to a computing device for storage and processing; and using the digitized outputs of the plurality of passive acoustic sensors, estimating a probability of the velocity of the plunger using a hidden Markov model (HMM) to represent a probability of a position and the probability of the velocity of the plunger, the HMM comprising a state space model and an observational model.

公开(公告)号：US11519259B2

公开(公告)日：2022-12-06

申请号：US16153570

申请日：2018-10-05

Applicant: KELVIN INC.

Inventor： David Bangor ,  Logan Duffy ,  Adam Guetz ,  Tim Jackson ,  Robbie Pratt ,  Peter Harding

IPC: F04B49/22 ,  F04B49/06 ,  F04B47/02 ,  G01H1/00 ,  E21B47/008 ,  E21B43/12 ,  F04B47/12 ,  G01V1/52 ,  E21B47/009 ,  E21B34/08 ,  E21B49/08 ,  G01V1/46 ,  F04B51/00 ,  E21B47/107

Abstract: A method of probabilistically estimating a velocity of a plunger of a beam pump may comprise continuously monitoring well acoustics using a plurality of passive acoustic sensors attached to external structures of the beam pump; digitizing outputs of the plurality of passive acoustic sensors and sending the digitized outputs to a computing device for storage and processing; and using the digitized outputs of the plurality of passive acoustic sensors, estimating a probability of the velocity of the plunger using a hidden Markov model (HMM) to represent a probability of a position and the probability of the velocity of the plunger, the HMM comprising a state space model and an observational model.