That is even more expensive than it sounds, because each well produces only a small amount: perhaps 180 b/d, compared with as much as 7, 000 b/d from some Persian Gulf wells.
而这实际上比它听起来要昂贵的多，因为每个油井只能产很小一部分数量的石油：大约180桶／天，而与之相比，波斯湾的油井的日产量为7000桶／天。
In 1905, he started his own company, name is very long, called "Wells Randolph and David company, " special sales, but also r&d watches.
1905年，他创办了自己的公司，名字很长，叫“威尔斯多夫及戴维公司”，专门销售，但也研发手表。
This paper describes the reservoir distribution in wells and predicts 3-D reservoir distribution of Archaeozoic reservoir in the Chengbei-30 burried hill with 3-D seismic inversion.
以井点储集层为约束条件，应用三维地震反演技术，预测了埕北30潜山太古宇油藏的储集层三维空间展布。
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