This review discusses the application of emulsified acids for oil well stimulation. Types of oil,
aqueous solutions, and emulsifiers are discussed in detail along with the solid agents and …

Magnetic surfactants are a special class of surfactants with magneto-responsive properties.
These surfactants possess lower critical micelle concentrations and are more effective in …

The economic development of tight carbonate reservoirs requires hydraulic or acid fracturing
stimulation. Acid fracturing better activates natural fractures, resulting in increased …

An organic ester p-nitrobenzyl acetate (PNBA) was synthesized and used to establish a kind
of autogenic acid system through the hydrolysis of ester to acetic acid in situ. The autogenic …

Pyrite is one of the toughest iron sulfide scales to remove, which causes major problems in
oil and gas production by damaging production equipment. The use of inorganic acid in iron …

Carbonate formations constitute the primary source of hydrocarbon reservoirs worldwide,
highlighting the importance of gaining a deeper understanding of matrix acidizing …

Iron sulfide scale causes major losses in both upstream and downstream sectors of the
hydrocarbon industry. Pyrite is one of the most-difficult forms of iron sulfide scale from a …

Diffusion Coefficient (D e) is a very important parameter for the formation damage treatment
job design. Commonly a Rotating Disk Apparatus (RDA) is used to obtain acid D e and …

Hydrochloric acid (HCl) is the most commonly used stimulation fluid for high-temperature
wells drilled in carbonate reservoirs due to its high dissolving power and low cost. However …

Due to high dissolving power, Hydrochloric acid is the most common acid for acidizing of
carbonate reservoirs. Two factors limit the usage of this acid: The high reaction rate and the …