Schlumberger Technology Corporation

Cameron International Corporation

Quincy K Elias

Terizhandur S Ramakrishnan

Hua Zhang

Albert Perez

Li Jiang

Wenlin Zhang

Albert Perez, Jr

Roy Koveleski

Albert M Perez

Sandeep Verma

Chaur-Jian Hsu

Yusuf Bilgin Altundas

John G Brisson

Richa Sharma

Eric Leon Stabinski

Yixuan Feng

Youssef Magdy Abdou Mohamed Elkady

A wellbore is plugged using a bismuth alloy. The wellbore is arranged so that a liquid bismuth alloy sets with an excess pressure of the plug relative to the borehole fluid pressure along a desired seal height distance.

Methods, apparatus and systems for creating wellbore plugs for abandoned wells

A method of producing an image of at least one rock cutting. The method can include forming or obtaining a substrate having a patterned top surface. The method can also include using the patterned top surface of the substrate to support at least one rock cutting, controlling an image acquisition system to acquire at least one image of the rock cutting for storage and subsequent image processing.

Patterned substrate for use in image-based classification of rock cuttings

A wellbore is plugged using a bismuth alloy. In one embodiment, the bismuth alloy comprises an alloy of bismuth and tin. In another embodiment, the bismuth alloy comprises an alloy of bismuth and silver. The wellbore can be arranged so that a liquid bismuth alloy sets with an excess pressure of the plug relative to the borehole fluid pressure along a desired seal height distance. Other aspects are described and claimed.

Methods, apparatus and systems for creating bismuth alloy plugs for abandoned wells

Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the Nerst equation wherein the temperature of the electrolyte is above 488&#xb0; C. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid.

CO2 concentration measurement in dry gas mixtures

Methods and apparatus are provided for the measurement of the compressibility of reservoir fluid. A piezoelectric material is coupled to a wall of a fluid chamber. Compressibility is derived from measured pressure changes to the fluid resulting from volumetric changes to the fluid chamber imposed by the mechanical strain of the piezoelectric material resulting from an applied electric field.

Apparatus and methods for analysis of reservoir fluids

[object Object]

A method of and apparatus for cooling equipment including exposing a fluid to a tool comprising electronic components at a temperature T and pressure P, compressing the fluid to a temperature Tand pressure P, exposing the fluid to a surface in communication with liquid or gas or both external to the tool wherein the fluid after exposure to the surface is at a temperature Tand pressure P, and allowing the fluid to expand to a temperature Tand pressure Pwherein the equipment is a tool in a subterranean formation and T is less than Tand P is less than P. Apparatus and methods for cooling oil field services tools including a fluid that conducts heat from the tool to the fluid, a compressor that, a heat exchanger that accepts fluid from the compressor and that rejects heat from the fluid, and a valve or orifice.

Method for active cooling of downhole tools using the vapor compression cycle

Growing community of inventors

Mattapan, MA, United States of America

Quincy K Elias