Mohan Kanaka Raju Panga

Modeling simulation and comparison of models for wormhole formation during matrix stimulation of carbonates

Disclosed are methods of modeling stimulation treatments, such as designing matrix treatments for subterranean formations penetrated by a wellbore, to enhance hydrocarbon recovery. The modeling methods describe the growth rate and the structure of the dissolution pattern formed due to the injection of a treatment fluid in a porous medium, based on calculating the length scales for dominant transport mechanism(s) and reaction mechanism(s) in the direction of flow lX and the direction transverse to flow lT. Methods of the invention may further include introducing a treatment fluid into the formation, and treating the formation.

Wettability Alteration for Water Block Prevention in High Temperature Gas Wells

A chemical system alters the formation wettability to intermediate gas-wet conditions, thereby decreasing capillary forces and enhancing clean-up of trapped water at low drawdown pressures.

Chapter 12:Applications of Wormlike Micelles in the Oilfield Industry

Over approximately the past 20 years, viscoelastic surfactant fluids containing wormlike micelles (WLMs) have been applied in numerous oil and gas well treatments, including hydraulic fracturing, matrix acidizing, wellbore fill removal, and gravel packing. Surfactant-based fluids often offer operational benefits including efficient preparation, effective particle transport, significant drag reduction, and minimum residue. To address different applications and conditions of temperature and salinity, a variety of surfactant types have been employed, including cationic, anionic, and zwitterionic chemistries. Current research continues to investigate both the fundamentals and applications of WLM fluids, including the possibility of adding nanoparticles to enhance fluid rheology and stability.