[특허]Method of analyzing oil and water fractions in a flow stream

Method of analyzing oil and water fractions in a flow stream 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-005/00 G01F-001/74 G01N-021/35
출원번호	US-0015708 (1993-02-09)
발명자 / 주소	Hines Daniel R. (Lawrence Ville NJ) Wada Noboru (Evergreen CO) Garoff Stephen (Pittsburgh PA) Mullins Oliver C. (Ridgefield CT) Hammond Paul (Bourn GB2) Tarvin Jeffrey (Great Shelford CA GB2) Cramer
출원인 / 주소	Schlumberger Technology Corporation (New York NY 02)
인용정보	피인용 횟수 : 73 인용 특허 : 0

초록 ▼

Methods for quantifying the oil and water fractions of a fluid stream. A first method broadly includes making optical density (OD) measurements of the fluid stream by detecting photons of a first predetermined energy where the oil and water absorption characteristics are substantially identical (e.g., 1710 nm wavelength), and determining the oil and water fractions fo and fw according to OD�wawl+foaol where aw and ao are related to the absorption coefficients of the oil and water at the predetermined energy, l is the path width of the fluid stream, and fw+fo=1. A second method which eliminates scattering effects utilizes the photons at the first predetermined energy and further utilizes photons of a second predetermined energy which is sufficiently close to the first predetermined energy such that the oil fraction is a linear function of the OD over the energy range. The oil and water fractions are then determined from the difference in optical density values (DDo [(ODo,a-ODo,b)- (ODw,a-ODw,b)]+(ODw,a-ODw,b), where ODo,a, ODo,b, ODw,a, and ODw,b are the optical densities per unit length of pure oil (o) and pure water (w) at the first (a) and second (b) wavelengths.

대표청구항 ▼

A method of determining at least one of an oil fraction and a water fraction of a fluid flow stream having a width l, said method comprising: a) directing a first number of photons of a first predetermined wavelength at said fluid flow stream, said first predetermined wavelength being chosen to be a wavelength where the absorptions of said oil and said water are substantially identical, wherein the absorption coefficients of said oil and said water at said wavelength are known; b) detecting a second number of photons of said first predetermined wavelength which pass through said fluid flow stream; and c) determining, from said first number and second number, said width l, and said absorption coefficients of said oil and said water at said first predetermined wavelength, at least one of said oil fraction and said water fraction of said fluid flow stream.

이 특허를 인용한 특허 (73)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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연합인증

Method of analyzing oil and water fractions in a flow stream 원문보기

초록 ▼

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Method of analyzing oil and water fractions in a flow stream 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (73)

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