King Fahd University of Petroleum and Minerals

Mohamed Ahmed Nasr El-Din Mahmoud

Salah El-Din Elkatatny

Marwan Nagm Eldeen Mohammad

Reyad Awwad Shawabkeh

Abdullah Saad Sultan

Khaled Zidan Abdelgawad

Hasan Salman Al-Hashim

A method of acidizing a geological formation and a method of determining an effectiveness of the acidizing with NMR spectroscopy. Variations of acidizing and determining the effectiveness of the acidizing are described. The method includes recording a first nuclear magnetic resonance spectrum of a geological formation, calculating an interconnectivity number, acidizing the geological formation, again recording an NMR spectrum and calculating an interconnectivity number to compare the interconnectivity before and after acidizing.

Method for determining acidization effectiveness for wellbore operations

A method of acidizing a geological formation is provided. A method of determining an effectiveness of the acidizing with NMR spectroscopy is also provided. Various embodiments of the method of acidizing and the method of determining the effectiveness of the acidizing are specified.

Stimulation fluid injection method and NMR verification

Method of acidizing a geological formation and method of determining an effectiveness of acidizing

A drilling fluid composition comprising an aqueous base fluid, a viscosifier, and a HS scavenger comprising copper nitrate, wherein the drilling fluid composition has a HS sorption capacity from about 4.0 to about 6.0 gram per one milliliter of the drilling fluid composition; and a method of drilling a subterranean geological formation using thereof are provided. Various embodiments of the drilling fluid composition and the method are also provided.

Method for drilling a wellbore with a weighted hydrogen sulfide scavenger fluid

Method for drilling a hydrogen sulfide-containing formation

A fracturing fluid composition that includes a chelating agent, e.g. GLDA, and a polymeric additive comprising a copolymer of acrylamido-tert-butyl sulfonate and hydrolyzed polyacrylamide diluted in an aqueous base fluid, e.g. seawater, and a method of fracking a geological formation using the fracturing fluid composition. Various embodiments of the fracturing fluid composition and the method of fracking are also provided.

Organic acid fracturing fluid composition

Fracturing fluid composition containing an acrylamido-tert-butylsulfonate polymer

Method of drilling a substerranean geological formation with a drilling fluid composition comprising copper nitrate

Saltwater-based fracturing fluid

Glutamic diacetic acid-containing aqueous fluid composition

Fracturing fluid composition and a method of fracturing a subterranean formation using the same

The chelating fluid for enhanced oil recovery in carbonate reservoirs and the method of using the same utilizes a chelating fluid injected into a carbonate oil reservoir through a fluid injection system. The chelating fluid is a solution of a polyamino carboxylic acid chelating agent in brine, with the polyamino carboxylic acid chelating agent having a concentration of approximately 5.0 wt % of the solution, with the solution having a pH of approximately 11.0. The polyamino carboxylic acid chelating agent is preferably ethylenediaminetetraacetic acid (EDTA). The brine preferably has a relatively high salinity, with a sodium chloride concentration preferably on the order of approximately 18,300 ppm.

Chelating fluid for enhanced oil recovery in carbonate reservoirs and method of using the same

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Dhahran, Saudi Arabia

Mohamed Ahmed Nasr El-Din Mahmoud