电缆地层测试仪器适用条件研究  

Applicable conditions of wireline formation testing instrument

作　　者：周全[1] 吴乐军[1] 秦小飞[1] ZHOU Quan;WU Lejun;QIN Xiaofei(Oilfield Technology Division of China Oilfield Services Co.,Ltd.,Langfang,Hebei 065201,China)

机构地区：[1]中海油田服务股份有限公司油田技术事业部,河北廊坊065201

出　　处：《石油地质与工程》2022年第5期115-118,共4页Petroleum Geology and Engineering

基　　金：中国科学院战略性先导科技专项(A类)“随钻地层测试流体取样仪器研制”(XDA14020202)。

摘　　要：电缆地层测试作业中因参数设置不合理而无法获取有效测试点,为此,以流体渗流理论为基础,结合电缆地层测试仪器的不同探针型号参数、测压作业泵抽、恢复时间和泵抽速度,以及地层渗流性质参数,模拟地层压力响应曲线。通过对比不同预设模型下的压力响应特征,分析总结了EFDT测试工具在不同渗透性储层中的适用条件。模拟结果显示,在其他条件相同的情况下,合理控制泵抽速度是测试成功的关键,低速泵在特低渗储层中较常规泵更为适用。模拟分析可为电缆地层测试仪器探针的选择和作业参数设置提供合理的建议,能提高测试作业成功率。During the process of wireline formation testing,effective test points cannot be obtained due to unreasonable parameter setting.Based on the fluid seepage theory,combined with different probe model parameters of wireline formation testing instrument,pumping,recovery time and pumping speed of pressure measurement operation,as well as formation seepage property parameters,the formation pressure response curve is simulated.By comparing the pressure response characteristics of different preset models,the applicable conditions of EFDT tool in different permeability reservoirs are analyzed.The simulation results show that under the same other conditions,reasonable control of pumping speed is the key to the success of the test,and low-speed pump is more suitable than conventional pump in ultra-low permeability reservoir.The simulation analysis can provide reasonable suggestions for the probe selection and operation parameter setting of WFT,and improve the success rate of testing operation.

关 键 词：电缆地层测试 压力曲线 泵抽速度 适用性 

分 类 号：TE122[石油与天然气工程—油气勘探]