INTEGRAL SYSTEM FOR THE EVALUATION IN SITU OF THE ACID MATRIX STIMULATION OPERATIONS IN OIL WELLS.

摘要

The present invention refers to an integral system for the design, performance and monitoring of the acid matrix stimulation operations in oil wells; which allows the whole stages to be supervised from the design of the operation to the supervision in real time of the performance thereof. The integral system for evaluating in situ the acid matrix stimulation operations in oil wells is mainly divided in three stages related therebetween; the first stage is related to the design of the stimulation plan, which is intended to determine the type and volumes of the different stimulation fluids to be injected into the oil well; the second stage is related to the performance of the lab chemical analysis, to the crude oil and the stimulation fluids (before and after the operation) that are to be injected and the back fluids after the operation has finished, and the third step being related to the monitoring in situ of variables that conduct to the analysis and evaluation of the effectiveness o f the acid matrix stimulation process in oil wells. The system includes a laboratory in situ for performing the chemical tests of compatibility in the stimulation fluids and the fluids for dragging the acid from the back fluids. The system has the ability of communicating via satellite for publishing the results in an Internet page and make them available to remote authorized users.