Chii chinonzi OCTG?
Inosanganisira Drill Pipe, Steel Casing Pipe uye Tubing
OCTG ndiyo chidimbu cheOil Country Tubular Goods, inonyanya kureva zvigadzirwa zvepombi zvinoshandiswa mukugadzira oiri uye gasi (kuchera mabasa). OCTG tubing inowanzo gadzirwa zvichibva pane API yakatarwa kana zvinoenderana neyakajairwa yakatarwa. Inogona zvakare kutorwa sezita rezita remapombi ekuchera, mapaipi esimbi, mafittings, couplings uye zvishongedzo zvinoshandiswa muindasitiri yepamhenderekedzo yegungwa neyekunze kwemafuta negasi. Kudzora zvimiro zvemakemikari uye kushandisa dzakasiyana kupisa kurapwa, OCTG pombi dzinoiswa mumhando dzakasiyana dzekuita zvinhu zvine mamakisi anopfuura gumi.

Mhando dzeOiri Nyika Tubular Zvigadzirwa (OCTG mapaipi)
Kune marudzi matatu makuru eOil Country Tubular Goods, ayo anosanganisira Drill pombi, Casing pombi, uye Tubing pombi.

OCTG Drill pombi - Pipe yekuchera
Pombi yekubooresa ichubhu inorema, isina musono inotenderedza chibhorani ichitenderedza mvura yekuchera. Inobvumira mvura yekuchera kuti iiswe kuburikidza ne bit uye kutsigira annulus. Iyo pombi inogona kumira axial tension, yakanyanya kukwirisa torque uye yakakwira mukati. Ndokusaka pombi yakasimba zvakanyanya uye yakakosha mukuedza kweOCTG.
Drill Pipe inowanzoreva Durable simbi pombi inoshandiswa mukuchera, zviyero muAPI 5DP uye API SPEC 7-1.
Kana iwe usinganzwisise annulus yeoiri zvakanaka, inzvimbo iri pakati pekaseji nepombi kana chero pombi yepombi, casing kana pombi yakatenderedza ipapo. Annulus inobvumira mvura kuti itenderere mutsime. Saka kana tiri kutaura nezve yakasimba kana inorema-basa OCTG pombi, tiri kutaura nezve Drill pombi.
Simbi Casing pombi - Gadzirisa tsime
Mapombi esimbi anoshandiswa kumisa chibhorani chiri kucherwa pasi kuti pawane mafuta. Sezvakangoita pombi yekuchera, simbi pombi casing inogonawo kumira axial tension. Iyi ipombi yakakura-dhayamita inopinzwa muchibhorani chakacherwa yobatwa panzvimbo nesamende. Iyo casing inoenderana neaxial tension yehuremu hwayo hwakafa, kudzvanywa kwekunze kwedombo rakaitenderedza, uye kumanikidzwa kwemukati kwemvura yekuchenesa. Kana yakanyatsoiswa simende panzvimbo, kuchera kunobatsirwa nenzira dzinotevera:
· Casing inonamira tambo yekuboorera uye inodzivirira kusagadzikana kwekumusoro kuumbwa kubva mukupamha mukati.
• Inodzivirira kusvibiswa kwenzvimbo yemvura.
· Inobvumira yakatsetseka yemukati bore yekugadzira midziyo yekuisa.
· Inodzivirira kusvibiswa kwenzvimbo yekugadzira uye kurasikirwa kwemvura.
· Inoparadzanisa nzvimbo yepamusoro yekumanikidza kubva kumusoro
· Uye nezvimwe

Iyo casing inonyanya kurema-basa pombi yakakosha kune OCTG.
OCTG Casing Pipe standard
Steel Casing pombi mitemo inowanzonzi API 5CT, Common Grades muna J55/K55, N80, L80, C90, T95, P110 etc. Common urefu muR3 izvo nominal pa 40 ft / 12 mamita. Casing pombi inoguma mhando dzekubatanidza dzinowanzo muBTC uye LTC, STC. Uye premium yekubatanidza inodiwa zvakare muhuwandu hukuru muoiri uye gasi pombi purojekiti.
Steel Casing Pipe Mutengo
Mutengo wepombi yesimbi yesimbi wakaderera pane chibooreso tsvimbo kana OCTG pombi mutengo, iyo inowanzova 200 USD yakakwirira kupfuura yenguva dzose API 5L pombi. Funga nezve mutengo weshinda + majoini kana kupisa kurapwa.
OCTG Pipe - Kutakura mafuta uye gasi kumusoro
OCTG Pipe inopinda mukati mebhokisi nokuti iyi ndiyo pombi iyo mafuta anopukunyuka nayo. Tubing ndicho chikamu chakareruka cheOCTG uye kazhinji chinouya muzvikamu makumi matatu (9 m) zvikamu, zvine tambo dzakabatanidzwa kumigumo yese. Iyi pombi inoshandiswa kutakura gasi rechisikigo kana mafuta asina kuchena kubva munzvimbo dzinogadzirwa kuenda kunzvimbo uko anozogadziriswa kana kuchera kwapera.
Iyo chubhu inofanirwa kukwanisa kumirisana nekumanikidza panguva yekubvisa uye nekumira mitoro uye deformation ine chekuita nekugadzira uye kurongedza. Kungofanana nemagadzirirwo akaitwa goko, machubhu anogadzirwawo nenzira imwechete, asi imwe nzira yekusanganisa inoiswa kuti iwedzere.
OCTG Pipe Standard
Zvakafanana negoko repombi chiyero, iyo OCTG pombi muAPI 5CT zvakare ine zvinhu zvakafanana (J55/K55, N80, L80, P110, nezvimwewo), asi dhayamita yepombi inogona kusvika 4 1/2 ″, uye inopera. kumusoro mumhando dzakasiyana seBTC, EUE, NUE, uye premium. Kazhinji, EUE yakakora yakabatana.