化工自动化及仪表
化工自動化及儀錶
화공자동화급의표
CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY
2015年
6期
638-640,695
,共4页
流量测量%注水井%压差测量%电容传感器
流量測量%註水井%壓差測量%電容傳感器
류량측량%주수정%압차측량%전용전감기
flow measurement%injection well%pressure difference measurement%capacitive sensor
基于压差流量测量技术，设计了用于测量注水井分层流量的分层测试流量计。该流量计由柱锥体、压差传感器、信号调理电路、地面控制板和上位机组成，柱锥体可在井筒内产生与流量直接相关的压力差，电容式压差传感器通过测量微小应变特性将电容差值转换为电压的变化，从而完成流量的测量。分层测试流量计能够沿井壁移动，通过计算不同位置流量差的方法测量出注水井各层的注入流量。
基于壓差流量測量技術，設計瞭用于測量註水井分層流量的分層測試流量計。該流量計由柱錐體、壓差傳感器、信號調理電路、地麵控製闆和上位機組成，柱錐體可在井筒內產生與流量直接相關的壓力差，電容式壓差傳感器通過測量微小應變特性將電容差值轉換為電壓的變化，從而完成流量的測量。分層測試流量計能夠沿井壁移動，通過計算不同位置流量差的方法測量齣註水井各層的註入流量。
기우압차류량측량기술，설계료용우측량주수정분층류량적분층측시류량계。해류량계유주추체、압차전감기、신호조리전로、지면공제판화상위궤조성，주추체가재정통내산생여류량직접상관적압력차，전용식압차전감기통과측량미소응변특성장전용차치전환위전압적변화，종이완성류량적측량。분층측시류량계능구연정벽이동，통과계산불동위치류량차적방법측량출주수정각층적주입류량。
Based on differential pressure flow measurement technology,a downhole instrument for hierarchy flow measurement in water injection well was designed,which consist of the cone column,differential pressure transducer,signal processing circuit,ground control panel and the host computer;of it,the cone column pro-duces a flow-related pressure difference in the wellhole;and through measuring the small strain features,the capacitance differential pressure transducer transforms the pressure difference to the electric capacity to meas-ure the flow.This instrument can move along the well wall to measure hierarchy flow in the water injection well by calculating the differential flow.
