In situ treatment analysis mixing system

Patent metadata

Field	Value
Publication number	US-11261706-B1
Application number	US-201916283901-A
Country	US
Kind code	B1
Filing date	Feb 25, 2019
Priority date	Oct 23, 2015
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

The present invention describes methods, systems, and apparatuses for controlled delivery of wellbore fluids including analysis and treatment within the methods, systems, and apparatuses themselves.

First claim

The invention claimed is:

1. A method for controlled delivery of a fluid for well bore operations comprising:
a) providing a plurality of pressurized sources of an aqueous base fluid having respective flow rates, and providing at least one target predetermined physical and/or chemical characteristic value;
b) blending at least two of the pressurized sources of aqueous base fluid creating a blended pressurized source of aqueous base fluid at an overall target blended flow rate;
c) testing the blended pressurized source of aqueous base fluid to determine the blended source's at least one physical and/or chemical characteristic value;
d) comparing the tested at least one physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid of step “b” to the target at least one target predetermined physical and/or chemical characteristic value to identify if they match;
e) based on the comparison made in step “d” altering the flow rates of at least two of the plurality of pressurized sources of aqueous base fluid of step “a” while maintaining substantially the same target overall blended flow rate; and
f) repeating steps “c” through “e” until the blended pressurized source of aqueous base fluid matches the at least one target predetermined physical and/or chemical characteristic value.

2. The method of claim 1 , wherein the testing of step “c” occurs at predetermined time intervals, and wherein the predetermined time intervals range from 0.01 seconds to 30 minutes.

3. The method of claim 1 , wherein the testing of step “c” occurs at predetermined time intervals, and wherein the predetermined time intervals range from 1 minute to 5 minutes.

4. The method of claim 2 , wherein steps “d” and “e” occur within the predetermined time intervals.

5. The method of claim 1 , wherein the at least one target predetermined physical and/or chemical characteristics is an indicator of chlorine content blended pressurized source of aqueous base fluid, after step “f”, further comprising the step of providing the blended pressurized source of aqueous base fluid to a wellbore for use in fracking operations.

6. The method of claim 1 , wherein the at least one target predetermined physical and/or chemical characteristics fall within a range of less than five percent deviation from a set of base targets of predetermined physical and/or chemical characteristics.

7. The method of claim 1 , wherein step “e” is performed without comparing the at least one physical and/or chemical characteristic data for the at least two pressurized sources of aqueous base fluid.

8. The method of claim 1 , wherein:
(i) one of the at least two pressurized sources of aqueous base fluid has a first flow rate and another of the at least two pressurized sources of aqueous base has a second flow rate;
(ii) during step “d” a first differential value is calculated for the at least one tested physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid of step “b” and the at least one predetermined target physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid,
(iii) after the first differential value is calculated, the first flow rate is reduced and the second flow rate increased, and step “d” is repeated and a second differential value is calculated for the at least one tested physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid of step “b” and the at least one predetermined target physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid, and if, the second differential value is smaller than the first differential value then the first flow rate is reduced again and the second flow rate increased again, but if the second differential value is larger than the first differential value then the first flow rate is increased and the second flow rate decreased.

9. The method of claim 1 , wherein
(i) one of the at least two pressurized sources of aqueous base fluid has a first flow rate and another of the at least two pressurized sources of aqueous base has a second flow rate;
(ii) during step “d” a first differential value is calculated for the at least one tested physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid of step “b” and the at least one predetermined target physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid,
(iii) after the first differential value is calculated, the first flow rate is reduced and the second flow rate increased, and step “d” is repeated and a second differential value is calculated for the at least one tested physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid of step “b” and the at least one predetermined target physical and/or chemical characteristic data of the blended pressurized source of aqueous base fluid, and where the second differential value has less than a one percent change from the first differential value a warning is generated.

10. A method of creating a source of blended aqueous base fluid comprising the steps of:
a) providing a plurality of pressurized sources of an aqueous base fluid having first and second flow rates for creating a blended pressurized flow having a blended target flow rate and at least one target predetermined physical and/or chemical characteristic data;
b) blending the pressurized sources fluid creating a blended pressurized stream of aqueous base fluid of the target flow rate;
c) testing the blended pressurized stream aqueous base fluid to determine the blended stream's physical and chemical characteristics;
d) comparing the at least one tested physical and/or chemical characteristic data of the blended stream of step “b” to the at least one target physical and/or chemical characteristic data;
e) based on the comparison made in step “d” a controller altering the first and second flow rates while maintaining substantially the same target blended flow rate; and
f) repeating steps “c” through “e” until the blended pressurized stream of aqueous base fluid achieves the predetermined physical and chemical characteristics.

11. The method of claim 10 , wherein the testing of step “c” occurs at predetermined time intervals, and wherein the predetermined time intervals range from 0.01 seconds to 30 minutes.

12. The method of claim 10 , wherein the testing of step “c” occurs at predetermined time intervals, and wherein the predetermined time intervals ranges from 1 minute to 5 minutes.

13. The method of claim 11 , wherein steps “d” and “e” occur within the predetermined time intervals.

14. The method of claim 10 , wherein the at least one target predetermined physical and/or chemical characteristic is an indicator of chlorine content in the blended pressurized stream source of aqueous base fluid, after step “f”, further comprising the step of providing the blended pressurized source of aqueous base fluid to a wellbore for use in fracking operations.

15. The method of claim 10 , wherein the at least one target predetermined physical and/or chemical characteristic data falls within a range of less than five percent deviation from a base at least one target of predetermined physical and/or chemical characteristic data.

16. The method of claim 10 , wherein step “e” is performed without comparing physical and/or chemical characteristic data for the plurality of pressurized sources of aqueous base fluid.

17. The method of claim 1

Assignees

• Tetra Tech

Inventors

• Lee David A
• Harvey Yannick

Classifications

• E21B43/2607

  Surface equipment specially adapted for fracturing operations · CPC title

• E21B21/062 Primary

  by mixing components · CPC title

• B01F23/405

  Methods of mixing liquids with liquids (B01F23/4105 takes precedence) · CPC title

• G05D21/02

  characterised by the use of electric means · CPC title

• G05D11/00

  Control of flow ratio (control of chemical or physico-chemical variables, e.g. pH-value, G05D21/00; control of humidity G05D22/00; control of temperature by varying the mixing ratio of two fluids having different temperatures G05D23/13; control of viscosity G05D24/00) · CPC title