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测试的主要目的是测得地层压力获得产量以及压力恢复曲线,通过资料处理从而获得准确的有关地层参数。为此,通常我们采用二开二关的工作制度,然而,由于大庆外围地区油层产能低,渗透性差,引起了地层测试及资料解释的一系列问题,如八三年至八六年测试的二百多层资料中,50%的层没有测得稳定的压力恢复曲线或者自然关井。这些问题都严重地影响了测试效果,因此需要分析研究影响压力恢复和测试产量的因素,找出制定工作制度,时间分配的科学方法以保证达到理想的测试效果。
The main purpose of the test is to measure the production pressure of the formation pressure and the pressure recovery curve, and obtain accurate relevant formation parameters through data processing. For this reason, we normally adopt the working system of “two switches and two offs”. However, due to the low oil production and poor permeability in the outer area of Daqing, a series of problems such as formation testing and data interpretation have been brought forward. For example, from 1982 to 1986, Over a hundred layers of data, 50% of the layers did not measure a stable pressure recovery curve or naturally shut-in. These problems have seriously affected the test results. Therefore, we need to analyze and study the factors that affect the pressure recovery and test yield, and find out the scientific method of work system and time allocation to ensure the ideal test results.