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前言1.本规范归美国石油学会钻井和特种作业设备标准化委员会管辖。2.本标准的目的,在于提供足够满足石油工业要求的钢丝绳标准(这些钢丝绳具有最少的材料等级和结构形式)。它并不说明凡按本标准制造的钢丝绳将保证使用年限,因为使用操作的许多因素将影响到它的寿命。3.本标准包括的钢丝绳适合于下列油田用途:钻杆和套管的牵引绳、抽油光杆悬挂绳、
Preface 1. This specification is governed by the American Petroleum Institute Standardization Committee for Drilling and Special Operations Equipment. 2. The purpose of this standard is to provide wire rope standards that meet the requirements of the oil industry (these wire ropes have the minimum material grade and structure). It does not mean that any wire rope manufactured according to this standard will guarantee the useful life, because many factors that affect the operation will affect its life. 3. This standard includes wire rope suitable for the following oilfield uses: drill pipe and casing of the traction rope, oil rod hanging rope,