Underground liquid level monitor for gas storage well

储气井井下液面监测仪

Abstract

The utility model provides an underground liquid level monitor for a gas storage well, which has long service life and convenience. The underground liquid level monitor is characterized by comprising a shell structure and a circuit structure, wherein the shell structure, in a cylindrical shape as a whole, consists of a cable fixed joint, a cable head protective barrel, a cable head socket joint, an insulating barrel, an electrode and a tail pipe which are sequentially connected; and the circuit structure comprises a cable and a detection circuit, the cable is fixed in the cable fixed joint and connected with the detection circuit, and the detection circuit is arranged in the insulating barrel and connected with the electrode. The working principle of the underground liquid level monitor is based on the conductive difference of saline water and diesel oil (or nitrogen gas), and the electrodeplate of the immersed saline water can be determined according to a current value output by the underground liquid level monitor, i.e. the one-to-one corresponding relation of the current value and the depth of an oil-water interface can be established, thereby the height value of the oil-water interface is determined. The underground liquid level monitor has higher bearing capacity without special molds, convenience for processing and manufacturing, long service life and lower cost.
本实用新型提供一种使用寿命长、方便的储气井井下液面监测仪。其特征在于:它包括外壳结构和电路结构;其中外壳结构由电缆固定接头、电缆头保护筒、电缆头插座接头、绝缘筒、电极和尾管顺次联接组成,整体成圆筒形;电路结构包括电缆和检测电路,电缆固定在电缆固定接头内与检测电路相联接,检测电路设置在绝缘筒内与电极相联接。本实用新型的工作原理是建立在盐水和柴油(或氮气)的导电差异性上,根据本实用新型输出的电流值就可确定浸入盐水的电极数,即可建立电流值与油水界面深度的一一对应关系,从而确定油水界面的高度值。本实用新型具有较高的承压能力,无需专门的模具,便于加工制造;并且使用寿命长、成本较低。

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