Saudi Arabian Oil Company

Ayrat Gizzatov

Wei Wang

Mohammed Sayed

Amy J Cairns

Amr Ismail Abdel-Fattah

Shitong Sherry Zhu

Rajesh Kumar Saini

Hooisweng Ow

Marta Antoniv

S Sherry Zhu

Shehab Alzobaidi

Chang Da

Martin E Poitzsch

Sehoon Chang

Shannon Lee Eichmann

Dmitry Kosynkin

Sehmus Ozden

Karim Ismail

Mohammad Alaskar

Mohammed R Kawelah

Zuhair Al Yousef

A method includes introducing a fluoro-based small molecule tracer into a stimulation fluid, injecting the stimulation fluid into a target zone of a subterranean formation, and maintaining the fluoro-based small molecule tracer inside the target zone of the subterranean formation for an amount of time. While being maintained inside the target zone, the fluoro-based small molecule tracer comes into contact with water at a downhole temperature resulting in hydrolysis of the fluoro-based small molecule tracer to produce a fluorinated tracer and a nonfluorinated group. Then, produced fluid that includes the fluorinated tracer is recovered, a concentration of the fluorinated tracer in the hydrocarbons is determined, and the concentration of the fluorinated tracer is correlated to a productivity of the target zone of the subterranean formation.

Oil, gas and water well tracers with tunable release profile

A method of preparing an enhanced oil recovery composition includes carbonizing a biomass waste material to provide carbon microparticles, functionalizing the carbon microparticles with a SO-containing gas such that the carbon microparticles include a hydrophilic surface, and grinding the carbon microparticles to provide carbon nanoparticles. The carbon nanoparticles include a hydrophilic surface and a hydrophobic surface. A method of enhanced oil recovery includes introducing an enhanced oil recovery composition including a carbon nanoparticle functionalized with a SO-containing gas and including a hydrophilic and hydrophobic surface into a hydrocarbon-bearing formation. The method includes displacing hydrocarbons from the hydrocarbon-bearing formation and recovering the hydrocarbons.

Sulfonation method for efficient scale-up synthesis of janus carbon nanomaterials from biomass waste

A method for monitoring gas production in a subterranean formation includes introducing a polymer composite particle having a degradable portion and a non-degradable portion including a tracer into a stimulation fluid and injecting the stimulation fluid into the subterranean formation to a treatment stage of a treatment zone. The treatment stage has at least one opening that the polymer composite particle may flow into and remain inside. The polymer composite particle may be exposed to moisture at a downhole temperature while inside the at least one opening. The moisture may degrade the degradable portion of the polymer composite particle, thereby releasing the non-degradable portion including the tracer. Produced gas that includes the non-degradable portion including the tracer may be recovered from the subterranean formation and the tracer may be correlated to the treatment stage of the treatment zone of the subterranean formation.

Partially degradable particulates as time-released tracers for acidized and fractured gas wells

A method and compounds for enhanced oil recovery (EOR) including flooding of a mixture of water and one or more of the compounds in a geological formation. The compounds have a fluoroalkyl group.

Polymers and nanoparticles for flooding

Described is a polymer-based well tracer. The polymer-based well tracer is a fluoropolymer having a fluorinated group. The fluoropolymer may be formed into a particle, a coating for proppant particulates, or encapsulated in a polymeric resin. Upon degradation or hydrolysis of the fluoropolymer, the fluorinated group having a fluorinated compound is released within the well.

Polymer-based well tracers with tunable release profile

Hydrogen foams may be used for placing and maintaining hydrogen in a subterranean location. For example, methods for introducing hydrogen to a subterranean location may include: placing a hydrogen foam in a subterranean location, in which the hydrogen foam comprises a continuous phase generated from a foamable composition comprising an aqueous fluid and a discontinuous phase comprising at least hydrogen gas; and maintaining the hydrogen foam in the subterranean location.

Subterranean storage of hydrogen foams

According to one or more embodiments, a method of growing crystals on a QCM sensor may include treating a crystal growth surface of the QCM sensor with a coupling agent, applying a cation stream to the crystal growth surface of the QCM sensor, and applying an anion stream to the crystal growth surface of the QCM sensor. The crystals forming a crystal layer may have an average thickness greater than 5 nanometers. According to one or more embodiments, a QCM sensor may include a crystal layer on a crystal growth surface of the QCM sensor, where the crystal layer is formed by a process including treating the crystal growth surface of the QCM sensor with a coupling agent, applying a cation stream to the crystal growth surface of the QCM sensor, and applying an anion stream to the crystal growth surface of the QCM sensor.

Methods for growing crystals on QCM sensors

Testing apparatuses and their methods of use for testing core samples with treatment fluids, such as reactive fluids, such as acidic fluids, are provided. The testing apparatuses include a top and a base housing coupled together having a sample recess, a viewing window, and a primary distribution hole. Within the sample recess a core sample assembly is secured and immobilized. The core sample assembly in the testing apparatus is viewable through the viewing window and fluidly accessible through the primary distribution hole. Optionally, a light connector coupled to the testing apparatus provides light into the core sample assembly. Methods of using the testing apparatus include providing a testing apparatus with a core sample assembly secured and immobilized within the sample recess of the testing apparatus, introducing a treatment fluid to the core sample, and detecting the interaction within the testing apparatus of the core sample with the treatment fluid.

Apparatus and method for observing performance of a treatment fluid in a core sample

Disclosed here compositions and methods suitable for injection of a nanosurfactant composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant composition includes nanoassemblies that contain a petroleum sulfonate surfactant, mineral oil, a zwitterionic co-surfactant, and a cationic co-surfactant.

Surface charge modified nanosurfactants for reduced retention by reservoir rock

Embodiments of the disclosure provide compositions and methods suitable for injection of a nanosurfactant-based foam composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant-based foam composition includes a gaseous component and nanoassemblies. The nanoassemblies contain a petroleum sulfonate surfactant, mineral oil, and a zwitterionic co-surfactant.

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Cambridge, MA, United States of America

Ayrat Gizzatov