Baker Hughes, a Ge Compnay, LLC

Shiv Shankar Sangaru

Prahlad Kumar Yadav

Gaurav Agrawal

Tianping Huang

Pranjal Sarmah

Mohammed Al-Rabah

A treatment fluid comprises: a base fluid; a viscoelastic surfactant gelling agent and hydrophobic nanoparticles comprising metallic nanoparticles that are surface modified with Caliphatic groups. The treatment fluid is a fracturing fluid, a completion fluid, a gravel pack fluid, a fluid loss pill, a lost circulation pill, a diverter fluid, a foamed fluid, a stimulation fluid and the like.

Hydrophobized nanoparticles as breaker for viscoelastic surfactant gelled fluids

A viscoelastic surfactant treatment fluid comprises an aqueous base fluid an inorganic salt, the inorganic salt being present in an amount of greater than about 5 wt. % based on the total weight of the treatment fluid; a viscoelastic surfactant gelling agent effective to gel the aqueous base fluid by forming a plurality of micelles; and a cationic polymer additive associated with the micelles via electrostatic interactions.

VES fluids having improved rheology at high temperature and high salinity

A method of breaking the viscosity of a treatment fluid comprises: adding hydrophobic nanoparticles to a treatment fluid comprising a base fluid and a viscoelastic surfactant gelling agent, the hydrophobic nanoparticles comprising metallic nanoparticles that are surface modified with Caliphatic groups, wherein the hydrophobic nanoparticles are added in an amount effective to decrease the viscosity of the treatment fluid as compared to a treatment fluid absent the hydrophobic nanoparticles.

A method of treating a subterranean formation penetrated by a well comprises combining an aqueous base fluid, a viscoelastic surfactant gelling agent, two or more types of the following nanoparticles: an alkaline earth metal oxide; an alkaline earth metal hydroxide; a transition metal oxide; or a transition metal hydroxide to form a treatment fluid, and pumping the treatment fluid into the well, wherein the weight ratio of the two or more types of the nanoparticles is selected such that the treatment fluid has an improved fluid efficiency as compared to an otherwise identical reference fluid except for comprising only one type of the nanoparticles selected from an alkaline earth metal oxide; an alkaline earth metal hydroxide; a transition metal oxide; and a transition metal hydroxide.

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Al-Khobar, Saudi Arabia

Shiv Shankar Sangaru