COURSE OVERVIEW:

Well Stimulation: Acidizing Design, Execution, and Evaluation is a technical program focused on restoring and enhancing the productivity of wells damaged by formation impairment. Acidizing is one of the most cost-effective methods to bypass the "skin" effect in carbonate and sandstone reservoirs. This course provides a deep dive into the chemistry of acid-rock interactions, the selection of additives, and the engineering of placement techniques to ensure that the treatment reaches the target zones effectively.

The scope of this training includes the distinction between matrix acidizing and acid fracturing. Participants will explore the specific acid systems used for different mineralogies, such as Hydrochloric (HCl) for carbonates and Mud Acid (HCl/HF) for sandstones. The curriculum emphasizes the prevention of secondary damage, such as the precipitation of spent acid byproducts, and the importance of effective diversion using mechanical or chemical methods.

Coverage also includes the operational execution and post-job evaluation of stimulation treatments. Attendees will learn how to interpret real-time pressure plots during the job to identify "breakdown" and diversion. By utilizing Nodal Analysis and pressure transient data, participants will be able to quantify the reduction in skin factor and the resulting increase in the Productivity Index (PI), ensuring a clear measurement of the treatment’s return on investment.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Identify the types and causes of formation damage (skin) in oil and gas wells.
• Select the appropriate acid system based on reservoir mineralogy and temperature.
• Design a matrix acidizing program including pre-flushes, main flushes, and over-flushes.
• Explain the chemistry and application of acid fracturing in tight carbonates.
• Utilize diverting agents (foams, resins, or mechanical) to ensure uniform coverage.
• Calculate the maximum injection rate and pressure to avoid unintended fracturing.
• Select and optimize acid additives: Corrosion inhibitors, surfactants, and iron sequesters.
• Evaluate the compatibility of acid systems with reservoir fluids to prevent emulsions.
• Supervise the operational setup and pumping sequence at the wellsite.
• Analyze real-time treatment plots to monitor stimulation progress.
• Perform post-stimulation evaluation using Nodal Analysis and skin factor comparison.
• Troubleshoot unsuccessful stimulation jobs and identify root causes of failure.
• Implement safety and environmental best practices for high-pressure acid handling.

TARGET AUDIENCE:

Production Engineers, Petroleum Engineers, Stimulation Specialists, and Field Supervisors involved in well productivity enhancement.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximise the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.