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- Two relation models between the drill footage and proved reserves are introduced: Gompertz model and Exponential model. 摘要为估算油气探明储量，介绍了探井进尺和探明储量间的2种统计模型：龚帕兹模型和指数模型。
- Statistic model based on drill footage proved reserves and its application 基于累计探井进尺的累计储量之间的统计模型及应用
- The total costs of oilfield exploration can be divided, according to exploratory area, contract method, and the type of well, into simple groups in order to evaluate separately the influence of drilling footage and average unit cost on the total costs. 在研究勘探总成本的变动中，可以按区块、包方式和井别进行简单分组，分别研究钻井进尺和平均成本对勘探总成本的影响。
- Beginning with increase in service life of bit and decresae in manufacturing cost of bit,the authors make an approach to the way to decrease in drilling footage cost about DTH bit. 本文从提高钻头寿命和降低其制造成本的角度出发，探讨了降低潜孔钻头使用成本的途径。
- Keywords resource evaluation;gompertz model;exponential model;drill footage;proved reserve; 资源评价;龚帕兹模型;指数模型;探井进尺;累计储量;
- The film contained some old newsreel footage. 这部影片中有些旧新闻片的镜头。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- This drill can bore through rock. 这台钻机能钻透岩石。
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- What's the drill for claiming expenses? 费用报销的手续，是怎样的?
- drill footage per day 日进尺
- drill footage per month 月进尺
- The class is chopped up into small groups for oral drill. 为进行口语训练，班级分成为几个小组。
- drill footage 钻进进尺
- The pupils filed out of the room during the fire drill. 在消防演习中，学生们排成纵队走出房间。
- And what about the game footage clips? 问：那么在最后的游戏片断影像部分是?
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
