SU851102A1 - Well level gauge - Google Patents

Description

(54) WELL LEVEL

Claims (2)

1, The invention relates to level measurement and can be used to measure fluid in hydrogeological wells. There are known level recorders, cells holding a float level sensor, a recording unit of a recorded value and a transmission link between them. As a recording unit, we use pots. Writing devices that draw a line of varying levels on a chart form. The transfer link implements motion transmission from the float to the writing device. The closest in technical essence to the proposed device is a device containing a level sensor, a mechanical rectifier, and tape media. information connected to a writing device and a power source 2. A disadvantage of the known device is the flatness of the obtained information and the difficulty of its decoding. The purpose of the invention is to increase the visibility of the information and the simplicity of its decoding during long-term observations in hydrogeological wells. To achieve this goal, a tape drive mechanism is inserted into the gage, connected between a tape carrier and a mechanical rectifier, a storage device connected between the level sensor and the Writer, an actuator connected between the level sensor and the mechanical rectifier, and the time of the connecting device connected with a power source, a writing device, a memory device, a level sensor and an actuator. FIG. 1 shows a block diagram of a downhole gauge: FIG. 2 - information carrier. The level gauge contains the time setting device 1, the level sensor 2, the actuator 3, the mechanical spreader A, the tape recorder 5, the tape information carrier 6, the memory 7, the writing device 8 and the power source 9. The storage medium is a long tape with markings on it. The distance between them shows the change in level. The location of the label (top-bottom) can be judged in which direction the level changes (up and down). The device works as follows. . The time setting device I turns on the power supply of the device after a set time interval. If at the moment of switching on the fluid level in the well changes as compared to the previous one, then the level 2 sensor is either above the level surface or lower, as indicated by the signal from the sensor in the actuator 3. The actuator 3 moves the sensor 2 in direction until it reaches the surface level. Then the movement of the sensor stops. Through the mechanical rectifier 4, the movement of the sensor, regardless of its direction, is converted into a unidirectional movement of the tape drive mechanism 5, in which the tape 6 moves. The movement of the tape stops simultaneously with the movement of the sensor, i.e., when it reaches the surface of the liquid. During the motion of sensor 2, memory 7 accumulates information about its direction of movement, which simultaneously / carries a message about the direction of the level change over a period of time elapsed from the previous measurement. As soon as the sensor is set, the storage device 7 gives a signal to the writing device 8. Depending on the direction of the level change, the storage device issues different signals, and the writing device puts a mark on the tape on one side or the other. 24 IntroH1 & 1e design changes provide registration of level fluctuations in the well in the form of simple and continuous recording on the tape. At the same time, the proposed construction has the advantage of being able to be completely installed inside the well, without the need for special downhole construction. Under conditions I of a large number of hydrogeological observation wells, scattered over vast areas, this makes it possible to significantly increase and reduce the cost of the observation process. Presentation of information in the described form opens the possibility of automatic: its processing. The invention The downhole gauge, containing a level sensor, a mechanical rectifier, a tape carrier connected to a recording device, and a power source, characterized in that in order to comprehend the information and ease of decoding it during long-term observations in hydrogeological wells , a tape drive mechanism is inserted in the gage, connected between a tape carrier of information and a mechanical rectifier, a memory device connected between the level sensor and a writing device, an actuator f, included between the level sensor and the mechanical rectifier, and the time delayed by the device connected to the power source, the recorder, the memory device, the level sensor and the actuator. Sources of information taken into account during the examination 1. USSR author's certificate No. 339798, cl. G 01 F 23/06, 1969. 2. USSR author's certificate number 298835, cl. G 01 F 23/08, 1969 (prototype).