然后根据井组储量计算原理，确定了内部井不需要外扩，边井和角井需要外扩的原则。

Then, with the reserve calculation principle, it was certain that the interior wells need not extending while edge wells and corner wells need extending.

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然后根据井组储量计算原理，确定了内部井不需要外扩，边井和角井需要外扩的原则。

Then, with the reserve calculation principle, it was certain that the interior wells need not extending while edge wells and corner wells need extending.

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