Pup 接頭:尺寸、API 5CT 等級和選擇指南(2026 年)
Pup joints are short length tubing sections that address one of the most common issues during well construction—obtaining an accurate string length. Each casing and tubing string needs to land at a specific elevation, and normal Range 2 joints (28-32 ft) generally do not sum to the correct amount. Pup […]
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