... option due to existing well parameters restricting treatment designs to matrix rate conditions. Acidizing treatments are typically based on HCl and organic acids and for the first time a multifunctional, low viscosity, retarded HCl acid is also available. Laboratory wormhole tests were conducted...

... SPE Members Abstract This paper describes the design and evaluation process for a large fracture acidizing treatment performed in a high-temperature (2750 F), high-closure stress (8,000 psi), limestone formation. The subject treatment was one of several that were performed in a single gas...

... Abstract This paper describes the development of a PC-based Matrix Acidizing Expert System (Acid Expert) with emphasis on the knowledge acquisition process and the knowledge bases. This system is currently being used to design damage removal treatments for sandstone formations. The primary...

... conductivity simulation hydraulic fracturing fracture reaction rate constant fluid loss test treatment design simulator fracture conductivity acid symposium reaction rate reactivity data concentration upstream oil & gas closure stress fluid loss coefficient Abstract...

... proppant reaction dolomite hydraulic fracturing bopd closure stress acid case history fracture acid reaction treatment design fracture conductivity etched fracture conductivity stimulation test sample fracture face upstream oil & gas society of petroleum engineers...

... Dallas, Texas 75206 PAPER NUMBER SPE 5004 THIS IS A PREPRINT -- SUBJECT TO CORRECTION MATHEMATICAL MODEL SIMULATES ACTUAL WELL CONDITIONS IN FRACTURE ACIDIZING TREATMENT DESIGN by A. W. Coulter, E. N. Alderman, J. E. Cloud, and C. W. Crowe Dowell Division of The Dow Chemical Company Tulsa, Oklahoma...

... a significant amount of residual oil dominating the open hole interval. This phenomenon results in wells transmissibility reduction, which reflects negatively on injection rate. A unique type of de-paraffin organic solvent was recently introduced to acid treatment design in South Ghawar PWIs to tackle...

... and Sakmar horizons (P1a + s) and the D 3 -III productive object associated with the upper Devonian, represented by sediments Zadonskogo-Yelets horizons. However, the main object in operation is the D 3 -III formation. The paper considers the complex process of designing acid treatment (AT), which includes...

... job in 2015 (and the lower levels in 2014). Thus, the mitigation methods were aimed to neutralize the acid returns upon enter into the pipeline, and to include multiphase scavenging in the subsea infrastructure. Treatment design Acid and scale squeeze treatment designs and qualification Due...

... Abstract The aim of this paper is to describe a methodology to simulate scale squeeze treatments in acid stimulated carbonate reservoir. Acid stimulation treatments refer to matrix acidizing, which aims to improve productivity in tight carbonate reservoirs. They generally show a high porosity...

... treatment design. The goal in any fracture treatment is to optimize conductivity and acid-etched fracture length, which is a measure of the flow improvement of hydrocarbons to the well. The acid-etched width is the basis for conductivity in an acid fracture treatment. Research on the relationships between...

... regular hydrochloric acid stimulation in order to restore injectivity, impaired by different solids, mainly calcium carbonate and sulfides. A new stimulation system was designed. The system combines the conventional acid system with an aqueous chlorine dioxide solution.In this approach chlorine dioxide...