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Impeller for data acquisition in a flow

A technology for collecting data and impellers, which can be used in earth-moving drilling, measurement of flow/mass flow, liquid/fluid solid measurement, etc., and can solve problems such as high cost

Inactive Publication Date: 2005-11-09
SCHLUMBERGER OVERSEAS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure also has a high cost

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  • Impeller for data acquisition in a flow
  • Impeller for data acquisition in a flow
  • Impeller for data acquisition in a flow

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[0029] The impeller shown in FIGS. 1A and 1B has blades 1, for example, five blades, and a hub 2. The number of five blades is not limited, and the impeller may have more blades 1 or fewer blades 1. However, the number is preferably an odd number to obtain more uniform rotation, and the impeller support will not cover more than one blade at a time.

[0030] According to a feature of the present invention, the impeller made of plastic material is insert-molded, and a mandrel 3 and at least one magnet 4 are trapped in the hub 2. The magnet 4 is contained in the insert 5, and the insert 5 is also built in the hub 2 of the impeller.

[0031] In this context, the term insert molding means that the molding material includes at least one "inner body" in its interior.

[0032] By insert molding the impeller around the mandrel 3, at least one magnet 4 and the insert 5, a particularly compact assembly is obtained, which is not only inexpensive but also has high performance. Compared with ma...

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Abstract

This invention relates to an impeller for data acquisition in a flow. It comprises blades (1) and a hub (2). It is made of a plastic material and it is insert moulded by trapping a spindle (3) and at least one magnet (4) in its hub (2). Application particularly fo data acquisition in hydrocarbon wells.

Description

Technical field [0001] The invention relates to an impeller used on a data acquisition instrument in a flowing material and an instrument equipped with such an impeller for data acquisition. technical background [0002] In order to perform maintenance operations, it is necessary to obtain as accurately as possible a large amount of data about the multiphase fluid flowing in the well, especially in the hydrocarbon production well. For example, these data may include the nature, flow, and ratio of the different phases in the fluid. In hydrocarbon production wells, there is usually a three-phase fluid formed by oil, gas and water. These fluid phases have different densities, they move at different speeds, they exist in different proportions and they enter the well at different locations. Depending on whether the well is vertical, inclined or horizontal, the distribution of different fluid phases in the fluid varies. Because of the difference in density in different fluid phases, th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/10G01F1/115
CPCG01F1/115
Inventor 费比恩·森斯吉尔伯特·加兰德让-皮埃尔·奇扎克
Owner SCHLUMBERGER OVERSEAS SA