井下智能配产器测试模块结构优化及评价

Structure optimization and evaluation of the testing module of intelligent downhole production allocator

李越 杨树坤 廖朝辉 赵广渊 杜晓霞 郭宏峰

LI Yue YANG Shukun LIAO Zhaohui ZHAO Guangyuan DU Xiaoxia GUO Hongfeng

中海油田服务股份有限公司油田生产事业部

Production Business Division of China Oilfield Services Limited, Tianjin 300459, China

为满足海上油田小井眼采油井精细分层采油的需求，研发了一套集流量控制和分层含水、流量测试为一体的井下智能配产器，并对其测试模块的结构进行了优化研究。采用数值模拟方法建立仿真模型，对测试模块的射频含水率测试通道、超声波流量测试通道尺寸进行了优化设计，根据优化结果加工配产器试验样机并进行试验评价。结构仿真优化结果表明，当含水率测试通道长度200 mm、管径26 mm，流量测试通道长度150 mm、管径15 mm时，能够满足测试需求并实现工具尺寸的最小化；样机试验评价结果表明，配产器流量测试范围10~300 m³/d、最大测试满量程误差3.97%，含水率测试范围0~100%、最大测试满量程误差5.5%，满足现场应用技术指标要求。

For refined zonal production of offshore slim-hole oil production wells, an intelligent downhole production allocator, integrating flow rate control and selective water-cut and flow rate testing, was developed, and the structure of its testing module was optimized. To begin with, the numerical simulation model was built to optimize the geometry designs of the radio-frequency water cut testing channel and the ultrasonic flow rate testing channel. Moreover, the allocator prototype was manufactured in accordance with the optimized design and evaluated via testing. The numerical simulation structure optimization shows that the testing requirements and minimum device dimensions can both be facilitated in the case of the water-cut testing channel with a length of 200 mm and diameter of 26 mm and the flow rate testing channel of a length of 150 m and diameter of 15 mm. The prototype testing shows that the flow rate testing range of the allocator is 10-300 m/d and the full-scale error is 3.97%, the water cut testing range is 0-100% and the full-scale error is 5.5%. These evaluation indexes satisfy the field application technical requirements.

10.13639/j.odpt.2022.04.014