Schlumberger Technology Corporation

Services Petroliers Schlumberger

Brandi Katherine Price Hoelscher

Cara Bovet

Albert Okhrimenko

Steven Philip Young

Guido De Stefano

Aaron Blue

James Friedheim

Clint Falgout

Xia Wei

Hui Zhang

Guido Destefano

A wellbore fluid comprising an aqueous base fluid and a plurality of nanoparticles suspended in the aqueous base fluid. The nanoparticles are present in the wellbore fluid in an amount effective to have an effect of increasing the density by at least 0.2 lb/gal.

Methods for completing a wellbore using high density brine containing colloidal particles

A method of performing a wellbore operation may include circulating an oil-based wellbore fluid having a conductive material therein within a wellbore, the oil-based wellbore fluid having a conductivity of at most 0.02 S/m when measured at 20 kHz; and forming a filtercake having a conductivity at least two orders of magnitude higher than the oil-based wellbore fluid on at least a portion of a wall of the wellbore.

Conductive wellbore fluids and/or filtercakes, wellbore fluids for producing the same, and methods of use thereof

A method of electrically logging a section of a wellbore includes circulating an oil-based wellbore fluid comprising a conductive carbon material therein, the oil-based wellbore fluid having a conductivity of at most 0.01 S/m when measured at 20 kHz, within the wellbore while drilling the wellbore with a drill bit on a drill string; applying electrical current from a logging tool on the drill string above the drill bit; and collecting an electrical log of the portion of the wellbore that has had electrical current applied thereto.

Methods of drilling with resistivity tools

A method of formulating an oil-based wellbore fluid, the method comprising adding at least a plurality of conductive carbon black agglomerates or pellets having an average size of at least 500 &#x3bc;m to an oleaginous base fluid, and applying energy to the oil-based wellbore fluid to disperse the plurality of conductive carbon black agglomerates or pellets into the oleaginous base fluid as finer particles than the agglomerates or pellets.

Methods of formulating conductive wellbore fluids

A method of electrically logging a section of a wellbore includes circulating an oil-based wellbore fluid within the wellbore and allowing filtration of the oil-based wellbore fluid to form a conductive filtercake on a wall of the wellbore; placing within the wellbore a wellbore logging tool with at least one pad capable of applying a current to a portion of the conductive filtercake and wellbore wall; applying electrical current from the at least one pad; and collecting an electrical log of the portion of the wellbore that has had electrical current applied thereto.

Wellbore fluids, and methods of use thereof, are disclosed. Wellbore fluids may include a non-oleaginous internal phase; an oleaginous external phase; at least one two-dimensional platelet-like material; a first latex-containing copolymer comprising at least one copolymer formed from at least one natural polymer and at least one latex monomer; and a second latex polymer distinct from the first latex polymer.

Self-crosslinking polymers and platelets for wellbore strengthening

Wellbore fluids, and methods of use thereof, are disclosed. Wellbore fluids may include a non-oleaginous internal phase, an oleaginous external phase, a first latex-containing copolymer comprising at least one copolymer formed from at least one natural polymer and at least one latex monomer, and a second latex polymer distinct from the first latex polymer.

Self-crosslinking polymers for wellbore strengthening

Electrically conductive oil-based wellbore fluids and methods of using same are provided. Wellbore fluids provided may contain one or more carbon nanotubes, where the one or more carbon nanotubes have a particular d/g ratio as determined by Raman spectroscopy. Also provided are methods for electrical logging of a subterranean well that include emplacing a logging medium into a subterranean well, wherein the logging medium contains a non-aqueous fluid and one or more carbon nanotubes, where the one or more carbon nanotubes are present in a concentration so as to permit the electrical logging of the subterranean well; and acquiring an electrical log the subterranean well.

Electrically conductive wellbore fluids and methods of use

Wellbore strengthening compositions and methods of use may include a base fluid and a plurality of hydrogel particles or a plurality of core-shell particles suspended in the base fluid. A method of treating a formation may include pumping a wellbore fluid into the formation, where the wellbore fluid includes a base fluid; and a plurality of hydrogel particles or a plurality of core-shell particles suspended in the base fluid.

Encapsulated polymers and selective activation thereof

A method of triggering heating within a subterranean formation, that includes introducting a wellbore fluid containing a dispersed carbon nanomaterial into a wellbore through the subterranean formation; lowering a microwave or ultraviolet radiation source into the wellbore; and irradiating the wellbore with microwave or ultraviolet radiation, thereby increasing the temperature of the wellbore fluid and/or wellbore is disclosed.

Growing community of inventors

Houston, TX, United States of America

Brandi Katherine Price Hoelscher