摘要
针对常规井下射孔压力测试系统体积大、功耗高、不耐高温等问题,研制了一种井下射孔压力数据采集与存储测试系统,用于深井及作业周期长、高温、高压、高冲击等恶劣环境。从实际应用需求出发,给出了系统总体设计方案及其实现原理和测试系统的技术指标,重点介绍了低功耗以及变频采样的实现原理。经过大庆油田测井现场实验,结果表明,该存储测试系统能够精确的记录下井、射孔和压裂恢复整个施工过程的压力数据,为高质量的打开油气层,进一步研究射孔工艺机理提供理论依据。
To solve the problem of bulky, high power consumption, bad high-temperature resistance in conventional downhole perforation pressure test system, a data acquisition and storage test system for downhole perforation pressure measurement is developed, which can be worked in deep hole and harsh environments such as long operating cycle, high temperature, high pressure, high impact and so on. Based on practical applications, the system solution, implementation principles, performance characteristics are given. The emphases are on how to achieve low power consumption and frequency sampling. The field experiments are completed in Daqing oil field. The results show that this storage test system can record the pressure data in whole construction process accurately, including going down, perforating and fracturing recovery. So it can provide theoretical basis for exploiting hydrocarbon reservoir with high quality and further studying the mechanism perforation.
出处
《传感器世界》
2010年第8期31-33,共3页
Sensor World
关键词
射孔
压力
变频采样
低功耗
perforation
pressure
frequency sampling
low power consumption
