In-situ calibration of tools

Patent metadata

Field	Value
Publication number	US-9568641-B2
Application number	US-201314769817-A
Country	US
Kind code	B2
Filing date	Mar 28, 2013
Priority date	Mar 28, 2013
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A tool sensor calibration system and tool calibration method are disclosed herein. A tool sensor calibration system ( 200 ) comprises a flow pipe ( 206 ), an isolation cell ( 214 ) in fluid communication with the flow pipe, a sensor ( 210 ) positioned proximate to the isolation cell, a fluid chamber ( 213 ) containing a reference fluid ( 212 ) with a known property value, and a first valve ( 222 a ) coupled to the fluid chamber that provides selective fluid communication between the fluid chamber and the flow pipe. A tool calibration method comprises introducing a first fluid ( 208 ) into a flow pipe, introducing a reference fluid into the flow pipe from a fluid chamber in fluid communication with the flow pipe through a valve, wherein the first fluid and the reference fluid mix to form a composite fluid, and detecting a property of the composite fluid at an isolation cell in fluid communication with the flow pipe.

First claim

What is claimed is:

1. A tool sensor calibration system, comprising:
a flow pipe;
an isolation cell in fluid communication with the flow pipe, wherein the isolation cell comprises a first window and a second window, and wherein the isolation cell contains a composite fluid, wherein the composite fluid comprises a mixture of a first fluid comprising a fluid from a hydrocarbon reservoir and a reference fluid having a known property value;
a sensor positioned proximate to the isolation cell;
a fluid chamber coupled to the isolation cell via the flow pipe, wherein the fluid chamber contains the reference fluid; and
a first valve coupled to the fluid chamber to provide selective fluid communication between the fluid chamber and the flow pipe.

2. The system of claim 1 , wherein the sensor comprises an optical sensor.

3. The system of claim 2 , further comprising an integrated computational element (ICE) in optical communication with the optical sensor.

4. The system of claim 1 , wherein the flow pipe is coupled to a reservoir through a second valve, wherein the reservoir contains the first fluid.

5. The system of claim 4 , further comprising a reciprocating pump coupled to the flow pipe.

6. The system of claim 5 , wherein the sensor is operable to measure at least one physical or chemical property of the composite fluid.

7. The system of claim 1 , wherein the known property value includes at least one of the following: chemical concentration, phase, density, temperature, resistance, capacitance, viscosity, bubble point, petroleum formation factor, and reservoir continuity.

8. A tool calibration method, comprising:
introducing a first fluid comprising a fluid from a hydrocarbon reservoir into a flow pipe;
introducing a reference fluid into the flow pipe;
mixing the first fluid and the reference fluid to form a composite fluid at an isolation cell in fluid communication with the flow pipe; and
detecting a property of the composite fluid at the isolation cell.

9. The method of claim 8 , wherein the first fluid is introduced into the flow pipe at a known volume.

10. The method of claim 8 , wherein the reference fluid is introduced to the flow pipe at a known volume and known property value.

11. The method of claim 10 , wherein the known property value includes at least one of the following: chemical concentration, phase, density, temperature, resistance, capacitance, viscosity, bubble point, petroleum formation factor, and reservoir continuity.

12. The method of claim 10 , wherein detecting a property of the composite fluid at the isolation cell comprises:
outputting a signal relating to a property of the composite fluid from a sensor to a processor;
performing at least one mathematical operation on the output signal.

13. The method of claim 12 , wherein performing at least one mathematical operation comprises performing standard addition.

14. The method of claim 10 , further comprising:
passing electromagnetic radiation through the composite fluid at the isolation cell; and
detecting the electromagnetic radiation passed through the composite fluid at the sensor.

15. The method of claim 14 , further comprising:
directing the detected electromagnetic radiation from the isolation cell to an integrated computational element (ICE).

16. The method of claim 14 , further comprising:
distinguishing electromagnetic radiation relating to the concentration of the first fluid from electromagnetic radiation related to other components of the composite fluid.

17. The method of claim 14 , further comprising:
providing an output at the sensor, wherein the output is correlated to a property of interest of the first fluid.

18. The method of claim 17 , further comprising:
employing the sensor output in a feedback loop;
controlling the property or concentration of interest of the first fluid based on the sensor output.

19. The method of claim 8 , wherein the property of the composite fluid includes at least one of the following: chemical concentration, phase, density, temperature, resistance, capacitance, viscosity, bubble point, petroleum formation factor, and reservoir continuity.

Assignees

• Halliburton Energy Services Inc

Inventors

• Simcock Michael Neil
• Perkins David L

Classifications

• G01N21/276

  with alternation of sample and standard in optical path · CPC title

• G01N21/85

  Investigating moving fluids or granular solids · CPC title

• G01V8/12 Primary

  using one transmitter and one receiver · CPC title

• E21B47/102

  Fixed Constructions · mapped topic

• E21B49/087

  Well testing, e.g. testing for reservoir productivity or formation parameters · CPC title