Coiled tubing, tseem hu ua flexible tubing, yog ua los ntawm cov pa roj carbon tsawg steel tubing nrog kev yooj yim kom tau raws li cov kev cai ntawm cov yas deformation thiab toughness yuav tsum tau los ntawm downhole kev khiav hauj lwm.Feem ntau siv coiled tubing specifications yog: Phi 1/2 peb-quart ...
Brearley tau tsim cov hlau tsis muaj steel hauv xyoo 1916 tau txais daim ntawv pov thawj British thiab pib tsim ntau lawm, kom deb li deb, cov hlau tsis muaj hlau tsis pom nyob hauv cov khib nyiab tau nrov thoob plaws ntiaj teb, Henry Brearley tseem hu ua "leej txiv ntawm stainless hlau".Thaum lub ...