API thumba la mafutandi chitoliro chachitsulo chomwe chimagwiritsidwa ntchito pothandizira khoma la zitsime zamafuta ndi gasi kuti zitsimikizire kuti chitsime chonse chamafuta chimagwira ntchito bwino pobowola komanso mukamaliza.

Kuyesa kwa hydrostatic pressure ya casing pipe ndi gawo lofunika kwambiri pakupanga chitoliro chachitsulo. Ntchito yake ndi kuyesa ntchito yotsutsa kutayikira kwa chitoliro chachitsulo pansi pa kukakamizidwa koyezetsa ndi nthawi yoyendetsera. Monga ma radiographs, ma ultrasonics, ndi njira zina zodziwira zolakwika, ndi njira yofunikira kuyesa mtundu wonse wa machubu achitsulo.

Kufotokozera kodziwika ndikudzaza chitoliro ndi madzi ndikuyesa kuthekera kwake kosunga kupanikizika komwe kumatchulidwa popanda kutsika kapena kusweka. Ntchito zake zimaphatikizapo masitepe atatu: kuwotcha, kuyezetsa kuthamanga ndi kuwongolera madzi.

API 5CT muyezo wa hydrostatic pressure test:

1. The hydrostatic pressure pressure test value of coupling and threaded chitoliro ndi mtengo wotsika kwambiri wa hydrostatic test pressure of flat end chitoliro, pazipita hydrostatic pressure test pressure of the coupling, and internal pressure kutayikira kukana, koma muyezo pazipita kuthamanga ndi 69MPa ndipo kuthamanga kumawerengedwa. Mtengowo nthawi zambiri umazunguliridwa mpaka pafupifupi 0.5 MPa.
2. Malinga ndi zofunikira za API, chipangizo choyezera kuthamanga kwa hydrostatic test chiyenera kuyesedwa mkati mwa miyezi 4 musanayambe ntchito iliyonse.
3. Ngati wogula ali ndi zofunikira zapadera, kupanikizika kwapamwamba kukhoza kusankhidwa.
4. Hydrostatic pressure test Kutayikira ndiko maziko okanira.
5. Pokhapokha ngati atavomerezana mwanjira ina pakati pa wogula ndi wopanga, kuyezetsa kuthamanga kwa hydrostatic sikofunikira polumikiza zopanda kanthu, zolumikizira, zida zapafupi, kapena zolumikizira zachitsulo za Q125.