Anthony D Allison

US Patent:

20200018151, Jan 16, 2020

Filed:

Sep 26, 2019

Appl. No.:

16/584465

Inventors:

- Houston TX, US
Anthony P. ALLISON - Kingwood TX, US
Jeremy M. GOMES - Houston TX, US

International Classification:

E21B 47/00
G05D 7/06
G05B 19/042
F04B 49/22
F04B 49/06
F04B 47/02
E21B 43/12

Abstract:

Techniques and apparatus are provided for improved diagnostics of downhole dynamometer data for control and troubleshooting of reciprocating rod lift systems. A method for pump fillage determination for a reciprocating rod lift system is provided. The method generally includes measuring downhole data during a pump cycle, wherein the downhole data comprises a first plurality of data points associated with an upstroke of the pump cycle and a second plurality of data points associated with a downstroke of the pump cycle, each data point comprising a rod position value and an associated rod load value; converting the data points to non-dimensional data points, calculating non-dimensional slope values between non-dimensional data points; and determining pump fillage based, at least part, on the calculated non-dimensional slope values.

US Patent:

20170016313, Jan 19, 2017

Filed:

Jul 14, 2016

Appl. No.:

15/210319

Inventors:

- Houston TX, US
Anthony P. ALLISON - Kingwood TX, US
Jeremy M. GOMES - Houston TX, US

International Classification:

E21B 47/00
F04B 49/06
G05D 7/06
F04B 49/22
G05B 19/042
E21B 43/12
F04B 47/02

Abstract:

Techniques and apparatus are provided for improved diagnostics of downhole dynamometer data for control and troubleshooting of reciprocating rod lift systems. A method for pump fillage determination for a reciprocating rod lift system is provided. The method generally includes measuring downhole data during a pump cycle, wherein the downhole data comprises a first plurality of data points associated with an upstroke of the pump cycle and a second plurality of data points associated with a downstroke of the pump cycle, each data point comprising a rod position value and an associated rod load value; converting the data points to non-dimensional data points, calculating non-dimensional slope values between non-dimensional data points; and determining pump fillage based, at least part, on the calculated non-dimensional slope values.