简答题 翻译：Actually, the basic fundamental premises of log interpretation are few in number and simple in concept.

问答题翻译：Petroleum geology is the application of geology (the study of rocks) to the exploration for and production of oil and gas.

问答题翻译:Usually, the operator sends out an invitation to bid to several drilling contractors who he knows have the equipment and integrity to drill the well to the specifications stated in the bid invitation.

问答题翻译：cooperation and assistance of the drilling contractor is required in almost every instance.

问答题翻译：The density of a fluid is defined as its mass M per unit volume v.

问答题翻译：The rig electrician maintains and repairs the electrical generating and distribution system on the rig.