Hydrochloric acidizing is a routine operation in oil fields to reduce the mechanical skin. In this paper, practical acidizing in a typical carbonate oil reservoir located in the southwest of Iran is practiced, which shows an unexpected improvement after acidizing. To understand the acidizing effect on reservoir rock, the formation rock is analyzed on different scales. An acidizing laboratory te...

Matrix acidizing in carbonate reservoirs is a process that has been long used to increase productivity oil and gas producing formations. The main goal create wormholes bypass the damage formation. Hydrochloric acid (HCl) for this; however, it several disadvantages affect success of these treatments. Its high reaction rate, inability divert, corrosive nature are few reasons why research this are...

Abstract The flow of reactive fluids into porous media, a phenomenon known as infiltration, is important in natural and engineered systems. While most the studies this area cover theoretical experimental analyses linear acid flow, present work concentrates on radial conditions from wellbore field finding exact analytical solutions to moving boundary problems uniform dissolution front. Closed-fo...

Carbonate reservoirs are one of the most important fossil fuel sources, and acidizing stimulation is a practical technique for improving recovery carbonate reservoirs. In this study, improved two-scale continuum model, including representative elementary volume (REV) scale model upscaling used to study process with an isolated fracture. Based on comprehensive discussion presented effect physica...

Acidizing is a dissolving activity, whether it rock formations or other materials (natural foreign) in reservoir of the rock. To maintain production Jatibarang field, especially Bangodua (BDA) structure, there are 1 well that have experienced short decline since drilling. The properties not good and impurity material (damage). Thus, requiring stimulation form matrix acidizing. Evaluation acid w...

Acidizing is a widely adopted approach for stimulating carbonate reservoirs. The two-scale continuum (TSC) model the most used simulating reactive process in reservoir during acidizing. In realistic cases, there are overburden pressure and pore at present. When injected acid reacts with rock, dissolution of rock consumption will break mechanical balance rock. Many experimental studies show that...

Acidic fluid flow in geologic formations leads to mineral dissolution and, under certain circumstances, localized forming a dendritic pattern, known as wormhole. Such patterns of conduits and caves are often observed karstic aquifer deliberately engineered oil gas well stimulation with acid injection. Two different kinds instability thought cause wormholes. One is heterogeneous property rocks. ...

Optimum acid selection based on reservoir condition is one of the key elements in achieving a successful treatment carbonate matrix acidizing. High reaction and corrosion rate regular hydrochloric especially tight reservoirs with high temperatures considered as limitation this acid. One alternative high-temperature to use in-situ generated hydrochloric. The objective study simulate acidizing us...