In the case of an intermediate contract depth, the work to deepen the well would likely be done on a day-rate basis, or a "time and Materials" contract.

如果是中间点合同深度，则对井眼的加深作业可能采取日费合同或“时间和材料”合同。

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The contract depth is specified in a legal agreement between the operator, who pays for the well, and the drilling contractor, who owns and operates the drilling rig.

合同深度特规定在作业商(为井眼付款方)与钻井承包商(钻机拥有并作业的一方)的法定合同中。

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Typically, capital costs will expand with distance from land and water depth and contract as the size of a project increases.

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