Methods for monitoring the formation and transport of an acidizing fluid using opticoanalytical devices

摘要

In or near real-time monitoring of fluids can take place using an opticoanalytical device that is configured for monitoring the fluid. Fluids can be monitored prior to or during their introduction into a subterranean formation using the opticoanalytical devices. Produced fluids from a subterranean formation can be monitored in a like manner. The methods can comprise providing at least one acid; combining the at least one acid with a base fluid to form an acidizing fluid; and monitoring a characteristic of the acidizing fluid using a first opticoanalytical device that is in optical communication with a flow pathway for transporting the acidizing fluid.

主权项

1. A method comprising:
providing at least one acid; combining the at least one acid with a base fluid to form an acidizing fluid; transporting the acidizing fluid to a subterranean formation via a flow pathway; monitoring a characteristic of the acidizing fluid in the flow pathway using a first integrated computational element in a first optical computing device that is in optical communication with the flow pathway for transporting the acidizing fluid; introducing the acidizing fluid into the subterranean formation in an acidizing operation; monitoring the characteristic of the acidizing fluid using a second integrated computational element in a second optical computing device that is in optical communication with the subterranean formation;
wherein the first and second integrated computational elements comprise two or more materials deposited in layers such that the first and second integrated computational elements have transmissive, reflective, or absorptive properties that are configured for specifically detecting and analyzing the characteristic of the acidizing fluid; determining a change in the characteristic of the acidizing fluid over time within the subterranean formation, the change in the characteristic representing a change in concentration of at least one component of the acidizing fluid; correlating the change in the characteristic of the acidizing fluid to an effectiveness of the acidizing operation; and before combining, monitoring the identity of the at least one acid using a third computational element in a third optical computing device that is in optical communication with the flow pathway for transporting the at least one acid.