Plunger lift monitoring via a downhole wireless network field

Patent metadata

Field	Value
Publication number	US-10697287-B2
Application number	US-201715665952-A
Country	US
Kind code	B2
Filing date	Aug 1, 2017
Priority date	Aug 30, 2016
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A real-time system for monitoring plunger properties in a gas producing well is provided. The system includes a plunger comprising a substantially cylindrical body; at least one sensor disposed along a tubular body; at least one sensor communications node placed along the tubular body and affixed to a wall of the tubular body, the sensor communications node being in electrical communication with the at least one sensor and configured to receive signals therefrom; a topside communications node placed proximate a surface; a plurality of intermediate communications nodes spaced along the tubular body and attached to a wall of the tubular body; wherein the intermediate communications nodes are configured to transmit signals received from the at least one sensor communications node to the topside communications node in substantially a node-to-node arrangement; a receiver at the surface configured to receive signals from the topside communications node; and a plunger control system structured and arranged to communicate with the topside communications node. A method of monitoring plunger properties and controlling plunger performance, and a hydrocarbon well are also provided.

First claim

What is claimed is:

1. A real-time system for monitoring plunger properties in a gas producing well, comprising:
at least one sensor disposed along a tubular body;
a plunger located and conveyed within the tubular body,the plunger comprising a
substantially cylindrical body;
at least one sensor communications node placed along the tubular body and affixed to a wall of the tubular body, the sensor communications node being in electrical communication with the at least one sensor and configured to receive signals therefrom;
a topside communications node placed proximate a surface;
a plurality of intermiediate communications nodes spaced along the tubular body and attached to the wall of the tubular body; wherein the intermediate communications nodes are configured to acoustically transmit signals received from the at least one sensor communications node to the topside communications node in substantially a node-to-node arrangement, wherein the acoustically transmitted signals are propagated along the tubular body between adjacent intermediate communications nodes;
a receiver at the surface configured to receive signals from the topside communications node; and
a plunger control system structured and arranged to communicate with the topside communications node.

2. The system of claim 1 , wherein the plurality of intermediate communications nodes are configured to transmit acoustic waves in combination with one or more of radio waves, low frequency electromagnetic waves, inductive electromagnetic waves, or light.

3. The system of claim 1 , wherein the at least one sensor communications node is configured to transmit acoustic waves, radio waves, low frequency electromagnetic waves, inductive electromagnetic waves, light, or combinations thereof.

4. The system of claim 3 , wherein the plurality of intermediate communications nodes and the at least one sensor communications node are configured to transmit acoustic waves, providing real-time plunger lift information to the plunger control system.

5. The system of claim 4 , wherein each of the plurality of intermediate communications nodes comprises: a sealed housing; a power source residing within the housing; and an electro-acoustic transducer.

6. The system of claim 5 , wherein each of the plurality of intermediate communications nodes further comprises a transceiver or a separate transmitter and receiver associated with the electro-acoustic transducer structured and arranged to receive and re-transmit the acoustic waves.

7. The system of claim 6 , wherein the a east one sensor communications node comprises: a sealed housing; a power source residing within the housing; and an electro-acoustic transducer.

8. The system of claim 7 , wherein the at least one sensor communications node further comprises a transceiver or a separate transmitter and receiver associated with the electro-acoustic transducer that is structured and arranged to communicate with the at least one sensor and transmit acoustic waves in response thereto.

9. The system of claim 8 , wherein the acoustic waves represent asynchronous packets of information comprising a plurality of separate tones, with at least some of the acoustic waves being indicative of a property of the plunger.

10. The system of claim 1 , wherein the at least one sensor is selected from a plunger position sensor, a plunger wear sensor, plunger velocity sensor, a fluid density sensor, a fluid resistivity sensor, a fluid velocity sensor, a pressure drop sensor or a combination thereof.

11. The system of claim 1 , wherein the at least one sensor comprises a plurality of sensors.

12. The system of claim 1 , wherein the at least one sensor employs passive acoustic monitoring, electromagnetic signature detection, sonar monitoring, radar monitoring, or radiation monitoring to detect plunger properties.

13. The system of claim 1 , wherein data transmitted topside is utilized by the plunger lift control system for plunger surveillance and optimization.

14. A method of monitoring plunger properties and controlling plunger performance in a gas producing well having a tubular body comprising:
sending a plunger responsive to pressure changes into the gas producing well and within
the tubular body;
sensing one or more plunger properties via one or more sensors positioned along the tubular body;
receiving signals from the one or more sensors;
transmitting those signals via a transmitter to an intermediate communications node attached to a wall of the tubular body;
acoustically transmitting signals received by the intermediate communications node to at least one additional intermediate communications node via a transmitter associated with the intermediate communications node, wherein the acoustically transmitted signals are propagated along the tubular body between adjacent intermediate communications nodes;
transmitting signals received by one of the at least one additional intermediate communications node to a topside communications node via a transmitter associated with said one of the at least one additional intermediate communications node; and
controlling plunger performance to minimize hydrostatic pressure within the tubular body in response to signals received from the topside communications node.

15. The method of claim 14 , wherein the intermediate communications nodes are configured to transmit acoustic waves in combination with one or more of radio waves, low frequency electromagnetic waves, inductive electromagnetic waves, or light.

16. The method of claim 14 , wherein the step of transmitting the signals received from the one or more sensors via a transmitter employs at least one sensor communications node configured to transmit acoustic waves, radio waves, low frequency electromagnetic waves, inductive electromagnetic waves, light, or combinations thereof.

17. The method of claim 16 , wherein the intermediate communications nodes and the at least one sensor communications node are configured to transmit acoustic waves, providing real-time plunger lift information to a plunger control system.

18. The method of claim 17 , wherein each of the intermediate communications nodes comprises: a sealed housing; a power source residing within the housing; and an electro-acoustic transducer.

19. The method of claim 18 , wherein each of the intermediate communications nodes further comprises a transceiver or a separate transmitter and receiver associated with the electro-acoustic transducer structured and arranged to receive and re-transmit the acoustic waves.

20. The method of claim 19 , wherein the at least one sensor communications node comprises: a sealed housing; a power source residing within the housing; and an electro-acoustic transducer.

21. The method of claim 20 , wherein the at least one sensor communications node further comprises a transceiver or a separate transmitter and receiver associated with the electro-acoustic transducer that is structured and arranged to communicate with the at least one sensor and transmit acoustic waves in response thereto.

22. The method of claim 21 , wherein the acoustic waves represent asynchronous packets of information comprising a plurality of separate tones, with at least some of the acoustic waves being indicative of a property of the plunger.

23. The method of claim 14 , wherein the one or more sensors are selected from a plunger position sensor, a plunger wear sensor, plunger velocity sensor, a fluid density sensor, a fluid resistiv

Assignees

• Romer Michael C
• Tolman Randy C
• Morrow Timothy I
• Exxonmobil Upstream Res Co

Inventors

• Romer Michael C
• Tolman Randy C
• Morrow Timothy I

Classifications

• E21B47/18

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

• E21B47/017

  Protecting measuring instruments · CPC title

• E21B43/121

  Lifting well fluids (monitoring of down-hole pump systems E21B47/008) · CPC title

• G01V1/52

  Structural details · CPC title

• G01V1/22

  Transmitting seismic signals to recording or processing apparatus · CPC title