King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

King Abdulaziz City for Science and Technology

Nisar Ullah

Muhammad Mansha

Rajendra Arunkumar Kalgaonkar

Mohammed Abudullah Bataweel

Eyad Alali

Ibrahim Khan

Nour Baqader

Yasir Abbas

Muhammad Waqar Ashraf

Manzar Sohail

Ahsanulhaq Qurashi

Abdul Waheed

Syed Shaheen Shah

Muhammad Nawaz Tahir

Izzat Wajih Kazi

Khalid Alnoaimi

Muhammed Mansha

Mohammed Abdullah Bataweel

Muhamad Mansha

A method, wellbore, and pill for treating a region of a subterranean formation adjacent a wellbore zone of the wellbore, including injecting a gellable treatment composition (e.g., as the pill) through the wellbore zone into the region of the subterranean formation adjacent the wellbore zone, allowing the gellable treatment composition to form nanoparticles in-situ in the region and gel in the region via heat provided by the region to prevent or reduce flow of an unwanted fluid from the region into the wellbore zone. The gellable treatment composition may include a zwitterionic gemini surfactant (ZGS).

Treatment of subterranean formations

A method of controlling a permeability zone in a reservoir includes introducing a diverter agent comprising a morpholinium based zwitterionic surfactant including a sulfonate terminal moiety, an ammonium-based zwitterionic surfactant, and an activator in a wellbore. Once introduced, the diverter agent contacts a high permeability zone in the reservoir. The diverter agent heats and gels to form a gelled diverter agent in the high permeability zone, subsequently forming a zone of decreased permeability.

Viscoelastic surfactants for acid diversion in downhole operations

A diverter agent includes a morpholinium based zwitterionic surfactant having a sulfonate terminal moiety; and an ammonium based zwitterionic surfactant.

Methods and materials for wellbore fluid diversion using visco-elastic surfactants

An asymmetric nanocomposite supercapacitor and a method of making the asymmetric nanocomposite supercapacitor. The asymmetric nanocomposite supercapacitor includes a negative electrode with monoclinic tungsten oxide (m-WO) nanoplates, and a binding compound coated on one face of a substrate, and a positive electrode with a carbonaceous material and a binding compound coated on one face of a substrate. Where the face of the positive electrode and the face of the negative electrode coated with the carbonaceous material and m-WOnanoplates, respectively, are separated by and in direct contact with a porous separator.

Energy storage device and supercapacitor

A fracturing fluid may include a first surfactant and a second surfactant. The first surfactant may have a structure represented by formula (I): wherein m is an integer ranging from 2 to 3, and n, o, and k are each, independently, integers ranging from 2 to 10. The second surfactant having a structure represented by Formula (II): wherein Ris a C-Chydrocarbon group or a C-Csubstituted hydrocarbon group, Ris a C-Chydrocarbon group, and p and q are each, independently, an integer ranging from 1 to 4. Methods of treating a hydrocarbon-bearing formation include injecting the fracturing fluid in the hydrocarbon-bearing formation, the fracturing fluid being configured to transport a proppant in fractures of the hydrocarbon-bearing formation.

Fracturing fluids based on viscoelastic surfactants

A wellbore fluid including a first surfactant, a second surfactant, an activator and an aqueous base fluid is provided. The first surfactant has a structure represented by Formula (I): where Y, Y, Y, Yare each, independently, a sulfonate, a carboxylate, an ester or a hydroxyl group, m is an integer ranging from 2 to 3, and n, o, and k are each, independently, integers ranging from 2 to 10. The second surfactant has a structure represented by Formula (III): where Ris a C-Chydrocarbon group or a C-Csubstituted hydrocarbon group, Ris a C-Chydrocarbon group, and p and q are each, independently, an integer ranging from 1 to 4. A method of using the wellbore fluid for treating a hydrocarbon-containing formation is also provided.

Methods and compositions of piperazine-based viscoelastic surfactants as diversion agents

A wellbore fluid including a first surfactant, a second surfactant, an activator and an aqueous base fluid is provided. The first surfactant has a structure represented by Formula (I): where Y, Y, Y, Yare each, independently, a sulfonate, a carboxylate, an ester or a hydroxyl group, m is an integer ranging from 2 to 3, and n, o, and k are each, independently, integers ranging from 2 to 10. The second surfactant has a structure represented by Formula (III): where Ris a C&#x2014;Chydrocarbon group or a C&#x2014;Csubstituted hydrocarbon group, Ris C&#x2014;Chydrocarbon group, and p and q are each, independently, an integer ranging from 1 to 4. A method of using the wellbore fluid for treating a hydrocarbon-containing formation is also provided.

Piperazine-based viscoelastic surfactants for hydraulic fracturing applications

Nanocomposite supercapacitors and method of preparation thereof

A wellbore fluid including a first surfactant, a second surfactant, an activator and an aqueous base fluid is provided. The first surfactant has a structure represented by Formula (I): where m is an integer ranging from 2 to 3, and n, o, and k are each, independently, integers ranging from 2 to 10. The second surfactant has a structure represented by Formula (III): where Ris a C-Chydrocarbon group or a C-Csubstituted hydrocarbon group, Ris a C-Chydrocarbon group, and p and q are each, independently, an integer ranging from 1 to 4. A method for treating a hydrocarbon-containing formation with the wellbore fluid is also provided.

Methods and compositions of using viscoelastic surfactants as diversion agents

A crosslinked resin made up of polymerized units of a linear polyamine with at least 3 primary and/or secondary amine functionalities and a bisacrylamide. The crosslinked polymers are porous spherical particles with a BET surface area in the range of 50-120 m/g. A method of the synthesizing the crosslinked polymer is specified. A method for using the crosslinked resin as an adsorbent material in removing pollutants including organic dyes (e.g. Congo red, Rhodamine B) and heavy metals from an aqueous solution or an industrial wastewater sample is also described.

Method for removing a pollutant from aqueous solution with a crosslinked polymer

Crosslinked resin, synthesis thereof, and use for removing organic dyes

A wellbore fluid may include a gemini surfactant, a zwitterionic surfactant; an activator, and an aqueous base fluid. The gemini surfactant may have a structure represented by formula (I): where Ris a C-Chydrocarbon group or a monovalent cation, Ris a C-Chydrocarbon group, m is an integer ranging from 1 to 4, n is an integer ranging from 8 to 12, and X is a monovalent anion.

Methods and compositions using a combination of zwitterionic surfactants and gemini surfactants as diversion agents

A wellbore fluid may include a gemini surfactant, a zwitterionic surfactant, an activator, and an aqueous base fluid. The gemini surfactant may have a structure represented by formula (I):  where Ris a C-Chydrocarbon group, m and o are each, independently, an integer ranging from 1 to 4, and n is an integer ranging from 8 to 12.

A copolymer containing carbazole- and cyanovinylene-based moieties, a photoelectrode comprising a metal oxide substrate and the copolymer as a photoelectrocatalyst component to the photoelectrode, as well as a photoelectrochemical cell including the photoelectrode. Methods of producing the copolymers, and methods of using the photoelectrochemical cell to produce hydrogen gas and oxygen gas through water splitting are also provided.

Growing community of inventors

Dhahran, Saudi Arabia

Nisar Ullah