Ukuhlanganisa amashubhu kuwuhlobo lwethuluzi lokumba endaweni kawoyela, elisetshenziswa kakhulu ekuxhumekeni kwamashubhu. Ukuhlangana kwamashubhu kuxazulula ikakhulukazi inkinga yokuphuka kokukhathala kokuhlangana okukhona ngenxa yokugxila kwengcindezi.
Isakhiwo sokuhlanganisa ishubhu siwukuthi isiphetho seshubhu kanye nodonga lwangaphakathi lwe-couplingbody luxhunywe ngentambo ecijile, kanye nokuphela komzimba ohlanganisayo kanye ne-tubingare exhunywe ngentambo efanayo kanye nentambo efanayo evundlile. Imodi yensiza inezici zokunciphisa ukugxila kwengcindezi empandeni yokuphuma ngaphandle kwentambo eyodwa eyindilinga exhuma ishubhu, futhi akulula ukukhiqiza ukuphuka kokukhathala, futhi inomphumela omuhle wokuxhuma. Ukuvimbela okusebenzayo kwengozi ye-tubing string break-offa.
Ukuhlangana kusebenzisa ukwelashwa kwe-phosphating, okusho ukuthi-ukumelana nokugqokwa okuhle, ukumelana nokubola kanye nokumelana nokunamathela kwentambo.
Ama-couplings ahlukaniswe ama-tubing couplings nama-casing couplings.