摘要
利用由放射性同位素所发射的射线被不同介质吸收后射线强度的变化,获得模拟油气藏中介质特性的分布状态,研究多孔岩心中不同流体(油、气、水)的渗流过程。针对包容模拟油气藏的高压厚壁金属容器对射线强度吸收衰减大、二维分布状态测试的试验周期长等问题,研究了如何保证和提高试验过程的安全可靠性。采用薄壁小孔测试技术及相应的试验系统的结构设计、精度设计和加工质量控制来提高测试精度、保证测试结果的可靠性。通过自动控制技术实现测试过程的自动化,尽可能地减少试验人员与放射源的接触时间,保证试验人员的人身安全。
Research into the process of percolation flow of different fluids, such as oil, gas, and water, in porous cores can be done by obtaining the distribution state of media's properties from a simulated oil-gas reservoir test, in which the radiation intensity of γ rays is changed after they are absorbed by different media. In view of the problem that the high-pressure, thick-walled metal container used to hold the simulated oil-gas reservoir absorbs some rays, and that the test period of measuring 2-D distribution state is long, a study is made on how to ensure and improve the safe reliability of the test. In order to improve test precision and ensure reliable test results, it is necessary to adopt small, thin-walled measuring technology and relevant structure design, precision design, and processing quality control for the test system. The test process should be automated by applying auto-control technology to reduce the time when test personnel contact the radiation source.
出处
《石油工业技术监督》
2004年第12期13-15,共3页
Technology Supervision in Petroleum Industry
