Schlumberger Technology Corporation

Dan Angelescu

Robert J Schroeder

Edward Harrigan

Matthew T Sullivan

Tullio Moscato

Robert Van Kuijk

Frederic Pauchet

Bill Grant

A method and an apparatus for nucleating bubbles in an oil-gas mixture, including introducing a sample comprising an oil-gas mixture into a chamber; and heating the sample with a heater until at least one bubble is thermally nucleated in the chamber. The bubble point (BP) pressure of the sample can be determined by detecting pressure at two points in a system, which includes the chamber and the heater, and by determining the behavior of the nucleated bubble as the pressure on the bubble is varied.

Thermal bubble point measurement system and method

A micro-structured surface for immersing in a multiphase fluid mixture comprises a substrate having pores and a wetting liquid phase trapped in the pores. The wetting liquid phase is immiscible with all the phases of the multiphase fluid mixture. Alternatively, the wetting liquid phase is miscible with one of the phase of the multiphase fluid mixture.

Micro-structured surface having tailored wetting properties

Devices, methods and systems for making optical measurements of a fluid at elevated pressures and temperatures are disclosed. A cell is designed for the optical spectroscopic measurements of fluids or gas using light from ultra violet (UV) to far infrared wavelengths, among other wavelengths. A cell is described that is well suited for applications using very small fluid volumes, on the order of micro liters, such as microfluidic systems. Some described embodiments are suited for very high pressure and temperature environments (for example, 20 kpsi or greater at 175 degree C. or greater). Such conditions, for example, may be found in oilfield downhole environments. Some embodiments provide are inexpensive, and make use of replaceable lenses that are used as a pressure barrier and for collimation of the optical beam path for spectroscopic measurements.

High pressure and high temperature optical spectroscopy cell using spherical surfaced lenses in direct contact with a fluid pathway

Methods and related systems for fabricating a device or a part, the method including the step of growing at least one material from a vapor phase, by a CVD process, for example a MO-CVD process, on a heated base substrate, wherein the at least one material conforms to one of at least one topographical pattern of the base substrate, one or more predefined geometrical shape on the base substrate or both. The method includes removing the base substrate embedded in the CVD deposited material, as well as optionally machining a portion of the CVD deposited material.

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Noisy Le Grand, France

Dan Angelescu