预探井 meaning in English

blue sky exploratory well
exploration well
preparatory reconnaissance borehole

5 ) the best exploration area of reservoir prospecting is the region locating on the north of well - huo no . 14 block . by the accurate structural interpreting we have found a trap deploymented a exploratory well hi it - - - - - - north fault block of well - huono . 14
储层预测的有利勘探区? ?火14井北面区域，通过构造精细解释已发现火14井北断块圈闭，并部署一口预探井。
Based on the successful application of mudlogging data analysis in evaluations of oil and gas beds , formation preessure and monitoring drilling engineering in the pushen well no . 1 , one of the key - wells of the daqing oilfield , the authors explain the importance of this mudlogging technique in exploration of oil and gasp and emphasize the significance of the technique for the exploration projects of oil and gas of similar category
摘要根据大庆油田重点预探井葡深1井录井施工过程中综合录井资料在评价油气层、地层压力检测和钻井工程监测等方面的成功应用，阐述了该技术目前在油气勘探中的重要作用，及对今后同类油气勘探项目建设的借鉴意义。