Optical element device and method of fabrication thereof

An optical element device and method of fabrication thereof are described herein. An example optical device may include an optical element (100). The optical element (100) may have an optical path material (105) to allow a light to pass therethrough. The optical path material (105) may have a first end portion (110) with a first end surface (112), a second end portion (110) with a second end surface (112), and a middle portion (115) between the first and second end portions (110) with an interior (116) and an exterior surface (117). A coating (120) may be disposed along the exterior surface (117) and diffused into the optical path material (105). The coating (120) may minimize leakage of the light from the interior (116) through the exterior (117) surface.

Apparatus and method for analysis of a fluid sample

Formation evaluation probe set quality and data acquisition method

In some embodiments, an apparatus and a system, as well as a method and an article, may operate to move a borehole seal in space with respect to the wall of a borehole while monitoring borehole seal contact quality data, which may comprise borehole seal contact pressure data and acoustic data. Operations may further include adjusting the movement of the borehole seal based on the borehole seal contact quality data. Additional apparatus, systems, and methods are disclosed.

Method for fabrication of a multivariate optical element

A method for fabricating an optical element including selecting a lamp spectrum and bandpass filter spectrum, obtaining a spectral characteristics vector to quantify the concentration of a component in a sample and obtaining a target spectrum from the lamp spectrum, the bandpass filter spectrum, and the spectral characteristics vector, is provided. Further including selecting a number of layers less than a maximum value, and performing an optimization routine using the index of refraction and thickness of each of the number of layers until an error between a model spectrum and the target spectrum is less than a tolerance value, or a number of iterations is exceeded. And reducing the number of layers if the error is less than a tolerance and stopping the procedure if the number of iterations is exceeded. A device using an optical element for optically-based chemometrics applications fabricated using the method above is also provided.

Enhancing reservoir fluid analysis using partitioning coefficients

Methods and systems of analyzing a reservoir fluid based on surface measurements of fluids circulated in a wellbore are provided. A fluid {e.g., a drilling fluid) with known properties is circulated within a wellbore where it is exposed to a reservoir fluid. A gas extractor is used to analyze a sample of the gas phase of the circulated fluid to determine the composition of the gas phase. Partitioning coefficients are used to calculate the composition of the solid, aqueous, organic, and gas phases of the circulated fluid. The composition of the fluid before and after circulation through the wellbore is compared to determine the composition of the reservoir fluids.