Calcium carbonate lost circulation material morphologies for use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-11753573-B2
Application number	US-202016904349-A
Country	US
Kind code	B2
Filing date	Jun 17, 2020
Priority date	Nov 5, 2015
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

Methods including precipitated and mined calcium carbonate lost circulation materials for use in subterranean formation operations. The precipitated calcium carbonate lost circulation materials are formed under a chosen set of precipitation conditions, including in situ in a subterranean formation. The mined calcium carbonate lost circulation materials are obtained in a desired morphological form under naturally occurring mined conditions. The precipitated and mined calcium carbonate lost circulation materials may be needle-shaped aragonite having an aspect ratio of about 1.4 to about 15.

First claim

What is claimed is:

1. A method of treating lost circulation in a subterranean formation comprising:
selecting an aspect ratio for a precipitated calcium carbonate lost circulation material (PCCLCM) based at least in part on a type of the subterranean formation;
forming the PCCLCM to have the selected aspect ratio from a reaction mixture comprising a calcium species and a carbonate species;
wherein the calcium species is selected from the group consisting of a calcium ion, a calcium soluble salt, and any combination thereof,
wherein the carbonate species is an ammonium carbonate ion, and
wherein the calcium species and the carbonate species are mixed in a mixing tank fluidically connected to a subterranean formation;

adjusting precipitation conditions to alter morphology of the PCCLCM;
adding non-calcium carbonate fibers to the reaction mixture, wherein the non-calcium carbonate fibers are present in an amount from about 1% to about 30% by weight of the PCCLCM; and
introducing a lost circulation treatment fluid into the subterranean formation, the lost circulation treatment fluid comprising an aqueous base fluid and the PCCLCM, wherein at least a portion of the PCCLCM is deposited in a filter cake across the formation pore throats, and/or fractures to reduce loss of treatment fluids into the subterranean formation.

2. The method of claim 1 , wherein the precipitated calcium carbonate lost circulation material is formed at a surface location.

3. The method of claim 1 , wherein greater than about 95% of the PCCLCM have a unit mesh size of about 1 micrometer to about 100 micrometer.

4. The method of claim 1 , wherein the calcium soluble salt is selected from the group consisting of calcium nitrate, calcium acetate, calcium citrate, calcium gluconate, calcium lactate, calcium bromide, calcium chloride, calcium iodide, calcium nitride, calcium formate, and any combination thereof.

5. The method of claim 1 , wherein the lost circulation treatment fluid is introduced during an operation selected from the group consisting of a drilling operation, a completion operation, a hydraulic fracturing operation, a cementing operation, and any combination thereof.

6. The method of claim 1 , wherein the aqueous base fluid comprises freshwater, saltwater, brine, seawater, produced water, wastewater, or any combination thereof.

7. The method of claim 1 , wherein the mixing rate of the reaction mixture is increased to increase one or more particle sizes of the PCCLCM or decreased to decrease one or more particles sizes of the PCCLCM.

8. The method of claim 1 , wherein the PCCLCM is needle-shaped aragonite having an aspect ratio of about 1.5-15.

9. The method of claim 1 , wherein the non-calcium carbonate fibers are present in an amount from about 6% to about 24%.

10. A method comprising:
forming a precipitated calcium carbonate lost circulation material (PCCLCM) at a surface location from a reaction mixture comprising a calcium species and a supercritical carbon dioxide treatment fluid;
wherein the calcium species is selected from the group consisting of a calcium ion, a calcium soluble salt, and any combination thereof, and
wherein the calcium species and the supercritical carbon dioxide treatment fluid are mixed in a mixing tank fluidically connected to a subterranean formation;
manipulating a condition comprising a concentration of the supercritical carbon dioxide treatment fluid, wherein the manipulation of the condition alters a size and/or a morphology of the PCCLCM; and
adjusting precipitation conditions to alter morphology of the PCCLCM;
adding non-calcium carbonate fibers to the reaction mixture, wherein the non-calcium carbonate fibers are present in an amount from about 1% to about 30% by weight of the PCCLCM; and
introducing a lost circulation treatment fluid into a subterranean formation, the lost circulation treatment fluid comprising an aqueous base fluid and the PCCLCM.

11. The method of claim 10 , wherein greater than about 95% of the PCCLCM has a unit mesh size of about 1 micrometer to about 100 micrometer.

12. The method of claim 10 , wherein the calcium soluble salt is selected from the group consisting of calcium nitrate, calcium acetate, calcium citrate, calcium gluconate, calcium lactate, calcium bromide, calcium chloride, calcium iodide, calcium nitride, calcium formate, and any combination thereof.

13. The method of claim 10 , wherein the lost circulation treatment fluid is introduced during an operation selected from the group consisting of a drilling operation, a completion operation, a hydraulic fracturing operation, a cementing operation, and any combination thereof.

14. The method of claim 10 , wherein the aqueous base fluid comprises freshwater, saltwater, brine, seawater, produced water, wastewater, or any combination thereof.

15. The method of claim 10 , further comprising a carbonate species, wherein the carbonate species is an ammonium carbonate ion.

16. The method of claim 10 , wherein the PCCLCM is needle-shaped aragonite having an aspect ratio of about 1.5-15.

17. A method of treating lost circulation in a subterranean formation comprising:
selecting an aspect ratio for a precipitated calcium carbonate lost circulation material (PCCLCM) based at least in part on a type of the subterranean formation;
forming the PCCLCM to have the selected aspect ratio at a surface location from a reaction mixture comprising a calcium chloride species and an ammonium carbonate ion based on manipulating a reaction rate of the reaction mixture to alter particle size and/or morphology of the PCCLCM, wherein the calcium chloride species and the ammonium carbonate ion are mixed in a mixing tank fluidically connected to a subterranean formation;
adjusting precipitation conditions to alter morphology of the PCCLCM;
adding non-calcium carbonate fibers to the reaction mixture, wherein the non-calcium carbonate fibers are present in an amount from about 1% to about 30% by weight of the PCCLCM; and
introducing a lost circulation treatment fluid into a subterranean formation, the lost circulation treatment fluid comprising an aqueous base fluid and the PCCLCM,
wherein the subterranean formation is a sandstone subterranean formation, a carbonate subterranean formation, or a shale subterranean formation and the PCCLCM further consolidates unconsolidated particulates therein, and wherein the PCCLCM is needle-shaped aragonite having an aspect ratio of about 1.5-15.

18. The method of claim 17 , wherein the lost circulation treatment fluid is introduced during an operation selected from the group consisting of a drilling operation, a completion operation, a hydraulic fracturing operation, a cementing operation, and any combination thereof.

19. The method of claim 17 , wherein the aqueous base fluid comprises freshwater, saltwater, brine, seawater, produced water, wastewater, and any combination thereof.

20. The method of claim 17 , wherein greater than about 95% of the PCCLCM have a unit mesh size of about 1 micrometer to about 100 micrometer.

Assignees

• Halliburton Energy Services Inc

Inventors

• Jamison Dale E
• Mcdaniel Cato Russell
• Ye Xiangnan
• Savari Sharath
• Davis Chesnee Lae
• Walker Jonathan Paul

Classifications

• C09K8/487 Primary

  Fluid loss control additives; Additives for reducing or preventing circulation loss · CPC title

• C09K8/032 Primary

  Inorganic additives · CPC title

• C09K8/5045

  containing inorganic compounds · CPC title

• C09K8/665

  containing inorganic compounds (proppants C09K8/80) · CPC title