电缆地层测试聚焦探针在渤海地区的应用

An application of focused probe for wireline formation test in Bohai Sea

稠油、低渗透性、高压差等疑难地层的取样纯度低和泵抽时间长是目前渤海地区电缆地层测试面临的主要难题。斯伦贝谢公司最新研制的聚焦探针改进了传统探针的取样模式,能够以较短的抽排时间获取纯度更高的地层流体样品。通过渤海地区多口井应用聚焦探针的实例,总结了聚焦探针的应用效果和适用范围,并提出了合理化建议。

For the difficult reservoirs such as heavy oil,low permeability and high differential pressure in Bohai Sea,the main problems during wireline formation test are lower sampling purity and longer pumping time.A type of focused probe newly developed by Schlumberger has improved the sampling mode of conventional probes,and can acquire formation fluid samples with higher purity in a shorter time.Based on the examples to use the focused probe in several wells in Bohai Sea,its application effects and adaptability are summarized,with some reasonable suggestions provided.