DEVICE FOR RESEARCH refractive index and OIL DISPERSION wellhead production wells

摘要

The invention relates to the petroleum industry and may be used for geological and commercial control oilfield development by optical methods and studies of oil wells, and relates to the measurement of refraction and dispersion indices produced fluids, oil production rate and water and watering directly with the mouth of the production well in real mode time. The purpose of the utility model is to provide a device for increasing the reliability of the control of oil field development, improve the accuracy and reliability of the optical technique of operational research parameters and changes in oil properties in the mouth of a production well in real-time. The specified goal is achieved by a device for the study of the refractive index and dispersion of the oil in the mouth of the production well. An apparatus for investigating the refractive indices and dispersion of oil at the wellhead production well comprises a heat insulating housing is divided into reception, power measurement, photoelectric, transformation, storage and transmission units and flowline connectors. New is that the device is in the form of blocks (removable modules) enclosed each in its own housing with the possibility of acquisition depending on the objectives and destination accumulator, flowmeter or wellhead sampler and the measurement unit has a removable measuring prisms adapted to study opaque oil or opaque liquid with a gas one of the prisms on the reflected light, and transparent media of different refraction of light on the prism, wherein the measuring unit comprises fotochuvstvite nye termoplastiny glass, and a photovoltaic unit includes photometric sensors, amplifiers and signal counters to determine the relative flow rate of oil and water and water cut. The proposed device has the following advantages. The integrated nature of the device allows it to measure the refractive index and medium crude oil dispersion flowmeter probe or common collector (accumulator) or in various combinations, depending on the task. Ability modular, when a complete set of separate modules and their number is determined by the purpose of the device. Measurement of properties of crude oil (unmodified during transportation and storage at the laboratory) directly on the wellhead. The possibility of simultaneous studies medium in reflection and refraction of light in a wide spectral range that does not limit the possibilities of using the device as a function of density, transparency, and other physical and chemical properties of oil. The ability to scan the oil in a wide wavelength range, or determining the refractive index for a given wavelength of radiation. This allows defined and used in geological and then commercial purposes refractive indices for light rays of the wavelengths that correlate well with field data geological well or field as a whole. The possibility of simultaneous determination of the refractive index and the average dispersion medium under investigation, as well as the possibility of determining the average dispersion in the predetermined wavelength range of light radiation. This allows the use of geological and commercial purposes such indicators average dispersion wavelength range of light radiation, which correlated well with the geological field data well or field as a whole. The possibility of obtaining data in increments of a predetermined specified time interval study the production well to provide the most reliable information about changes in the properties of fluids during well operation. The possibility of obtaining data in on-line mode for subsequent correlation with other geological field data. The ability to use the device as a flowmeter to determine the relative flow rate of oil wells, water and determination of water production. The apparatus may be used for studying the density and other physical and chemical properties of the produced oil and their changes in time, to assess the effectiveness of various types of geological and engineering operations, including to improve oil recovery. Research development wells using the device in conjunction with the geophysical and hydrodynamic methods of research wells will significantly increase the reliability of the control of oil field development.