Successful matrix acidizing for extremely thick carbonate reservoirs with long horizontal well sections and strong heterogeneity requires efficient temporary plugging diverting of acid fluid, ensuring fluid distribution to each production layer. Foamed-viscoelastic-surfactant (Foamed-VES) combines the benefits both foam viscoelastic surfactant (VES) acid, integrating viscous plugging. It can ac...

The corrosion inhibition of API 5L X60 pipeline steel in oil well acidizing fluid stimulated with 1.0 M HCl by Tranexamic Acid (TXA) was investigated using potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS) and the conventional gravimetric or weight loss (WL) techniques at temperatures ranging from 303 to 323 K. Surface morphological analysis was carried out us...

Emulsified acid has attracted considerable attention of the oil and gas industry due to its delayed action that allows deeper penetration into formation which essentially facilitates improved well productivity, at same time minimizes corrosion downhole equipment. In this paper, for first time, we report a new acidic emulsion suitable acidizing carbonate reservoirs. The novel is double type so i...

Abstract Acidizing is one of the most used stimulation techniques in petroleum industry. Several reports have been issued on difficulties encountered during operation Ahdeb oil field, particularly development Mishrif reservoir, including following: (1) high injection pressures make it difficult to inject acid into reservoir formation, and (2) only a few jobs effective wells, while bulk others h...

The potential hazards and risks associated with well-stimulation in unconventional oil and gas development (hydraulic fracturing, acid fracturing, and matrix acidizing) have been investigated and evaluated and federal and state regulations requiring chemical disclosure for well-stimulation have been implemented as part of an overall risk management strategy for unconventional oil and gas develo...

Abstract A two-scale continuum (TSC) numerical model is used at pore and Darcy scales to optimize the matrix acidizing dissolution process. During process in carbonate reservoir, solubility of carbon dioxide, as one hydrochloric acid/calcite reaction products, limited, which leads formation a separate gas phase reservoir based on pressure temperature. The presence this free has nonlinear effect...

A network model has been developed to study and describe formation damage resulting from particle entrapment in porous media by straining or size exclusion. Unlike the previous network models, this model considers the simultaneous entry ofa number of particles into the network, as well as the effects of fluid flow on the particle transport path. A systematic study has been carried out on the fl...