Liquid level online monitoring method and plunger for monitoring
The liquid level on-line monitoring method comprises the steps that the plunger is placed in a sealed oil pipe, and a measuring unit is arranged in the plunger; the measuring unit sends detected data to the controller; the controller analyzes the running state of the plunger based on the data; the m...
Saved in:
Main Authors | , , , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
10.11.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The liquid level on-line monitoring method comprises the steps that the plunger is placed in a sealed oil pipe, and a measuring unit is arranged in the plunger; the measuring unit sends detected data to the controller; the controller analyzes the running state of the plunger based on the data; the measuring unit comprises a temperature sensor, a pressure sensor and an acceleration sensor; when it is detected that the variable quantity of the acceleration exceeds +/-0.6 g within 0.5 s, the plunger reaches a wellhead; when it is detected that the pressure rises by at least 3 Mpa within 10 seconds, the plunger is in a downward running state; when it is detected that the temperature stops rising and the plunger acceleration effective value Xrms is larger than 50% of the plunger static effective value XrmsB, the plunger is in a shaft bottom static state; and when it is detected that the acceleration data meets # imgabs0 #, the plunger is in an ascending state. The acceleration change of plunger movement can be sen |
---|---|
Bibliography: | Application Number: CN202310690268 |