Kajeno re kenyelletsa phala ea tšepe e sebelisoang hangata e se nang seamless, phala ea oli (GB9948-88) e loketse mochini oa sebōpi oa ho hloekisa oli, mochini oa mocheso le phala e se nang moeli.

Pipe ea tšepe bakeng sa ho cheka ha jeoloji (YB235-70) e sebelisoa bakeng sa ho cheka ha mantlha ke lefapha la jeoloji, le ka aroloang ka phala ea ho cheka, molala oa ho phunya, phala ea mantlha, phala ea casing le phala ea pula ho latela ts'ebeliso ea eona.

Pipe ea oli ke mofuta oa tšepe e telele e nang le karolo e sekoti 'me ha e na lenonyeletso ho pota-pota, ha peterole e phunyeletsang pipe ke mofuta oa tšepe ea karolo ea moruo.
API: Ke khutsufatso ea The English American Petroleum Institute, moelelo oa Sechaena bakeng sa Setsi sa Amerika sa Petroleum.

OCTG: Ke khutsufatso ea Oil Country Tubular Goods, e bolelang phala e khethehileng ea Oli ka Sechaena, ho kenyeletsoa casing ea Oli e felileng, phala ea ho phunya, molala oa ho phunya, molala, le kopanelo e khuts'oane, jj.

Tubing: Peipi e sebelisoang tlhahisong ea oli le khase, ente ea metsi, le ho phunyeha ha asiti selibeng.

Casing: Peipi e phallang ho tloha holim'a lefatše ho ea mokoting o phuntsoeng hantle e le lesela ho thibela lerako hore le se ke la putlama.

Pipe e phunyang: phaephe e sebedisoang ho phunya masoba.

Pipe: phala e sebedisoang bakeng sa ho tsamaisa oli le khase.

Khola: cylinder e nang le khoele e ka hare e sebelisetsoang ho hokahanya liphaephe tse peli tse khoele.

Coupling material/ Ketso ya ho kopanya: peipi e sebedisoang ho etsa maqhama.

Likhoele tsa API: likhoele tsa liphaephe tse boletsoeng ho API 5B, ho kenyeletsoa likhoele tsa liphaephe tse chitja, likhoele tse khutšoane tsa liphaephe, likhoele tse telele tse chitja, likhoele tsa liphaephe tsa trapezoidal, likhoele tsa liphaephe, joalo-joalo.

Khoele e khethehileng: mofuta oa khoele e seng ea API e nang le tiiso e khethehileng, ho kopanya le thepa e meng.

Ho hloleha: ho lahleheloa ke mosebetsi oa pele ka lebaka la ho senyeha, ho robeha le ho senyeha ha holim'a maemo a khethehileng a tšebeletso.Mefuta e ka sehloohong ea ho hlōleha ha casing ke: extrusion, slip, rupture, leakage, corrosion, bonding, apara joalo-joalo.