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越来越多的酸性储层正在开发之中。这些储层通常较深,对高强度、耐酸性环境钻柱的需求日渐增多。通过阐述加拿大在苛刻酸性环境钻井中钻柱推荐用法的基本观点,提出了材料性能方面的要求,包括酸性环境中对724MPa(105klb/in2)钢级钻杆的要求。
More and more acidic reservoirs are under development. These reservoirs are usually deep and the need for drill string for high-strength, acid-resistant environments is increasing. By describing the basic idea of the recommended drill string usage in harsh acidic environments in Canada, the material performance requirements were addressed, including the requirements for a 724 MPa (105 klb / in2) grade drill pipe in an acidic environment.