物理法采油中振动频率与地质条件的关系研究  

Relationship between vibration frequency and geologic condition in oil production by physical methods.

作　　者：何易[1] 

机构地区：[1]大庆油田有限责任公司采油工程研究院

出　　处：《石油机械》2003年第9期9-11,5-6,共3页China Petroleum Machinery

基　　金：大庆石油管理局科研项目"物理法采油室内模拟实验"的部分内容

摘　　要：物理法采油技术研究大都偏重于现场试验,对其机理及规律性的认识仍停留在感性认识与定性解释的水平上,其工艺设计仅凭经验,导致了现场应用在一定程度上的盲目性,影响应用效果。为此,通过模拟试验装置模拟现场工况,分析测试结果后知,不同频率的振动对渗透率的影响不同,在模拟的频率段内,50 Hz的处理效果最好,20 Hz的处理效果最差;低频振动解堵的适应范围较宽,中高渗透层因颗粒堵塞较严重的井,解堵效果理想,而且解堵半径在30cm;各种频率的有效解堵时间25 min,考虑实际工况较复杂,可以适当延长处理时间。In the research of the physical oil production technology, particular stress is often laid on the field test. The technological design is still based on experiences, leading to the blindness in the field application of the technology. The on-site working conditions are simulated with the simulation test device, and the test results show that, the vibration with various frequencies has effects at different degrees on the permeability. In the frequency range of the simulation test, best effect can be achieved with a frequency of 50Hz and worst effect will be acquired with a frequency of 20Hz. The low-frequency vibration has wide use in plugging releasing of oil wells, and the effective time for plugging releasing with various frequecy vibration is 25 minutes.

关 键 词：物理法采油 振动频率 地质条件 关系 渗透率 模拟试验 现场应用 采油机械 

分 类 号：TE355[石油与天然气工程—油气田开发工程] TE93