Microwave watercut sensor for permanent installation in an oil well

被引：3

作者：

Nyfors, E ^{[1
]}

机构：

[1] Roxar Flow Measurement AS, N-4065 Stavanger, Norway

来源：

TECHNISCHES MESSEN | 2002年 / 69卷 / 01期

关键词：

Downholes - High temperature and pressure - Limited space - Low Power - Norsk hydros - Self-oscillating - Test rigs - Watercut;

D O I：

10.1524/teme.2002.69.1.032

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A microwave watercut sensor for use downhole in so-called smart oil wells, with production from several zones, is described. The main challenges have been the high temperature and pressure, the limited space, and the low power available. The sensor is a semisectorial cavity resonator sensor located in the annulus between the tubing and the casing. The electronics is based on a self-oscillating amplifier with feedback through the sensor. The paper describes the sensor, the electronics, and the results from the tests performed in the laboratory, and in the test rigs of Roxar and Norsk Hydro.

引用

页码：32 / 36

页数：5