水下化学药剂注入设备正反双向流量计量方法
By performing bidirectional flow measurement in the underwater chemical injection equipment, the problem of inaccurate measurement caused by incorrect installation of the underwater wellhead pipeline was solved, and rapid and accurate measurement of chemical flow was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NAT OFFSHORE OIL CORP
- Filing Date
- 2023-09-28
- Publication Date
- 2026-07-17
AI Technical Summary
Incorrect installation of the subsea wellhead pipeline caused the chemicals to flow backward within the subsea injection equipment, making it impossible to accurately measure the flow rate, increasing installation costs and affecting pipeline operation.
A bidirectional flow metering method for underwater chemical agent injection equipment is adopted. Through the agent input connector, pressure reducing component, needle valve assembly and agent output connector connected by the flow channel, bidirectional calibration is performed to obtain the relationship between differential pressure and flow rate, establish the flow rate-opening degree-differential pressure formula, and calculate the flow rate in real time.
It achieves accurate metering of the agent in the underwater injection equipment, solves the problem of insufficient speed and accuracy of metering, and reduces metering error.
Smart Images
Figure CN117367519B_ABST