Kusarudzwa kwezvinhu zvekushandisa pakuisa zvinhu mugomba rinodzikira kunokonzerwa nezvinhu zvakawanda. Kubva pamaonero emhando dzezvishandiso zvekushandisa pakuisa zvinhu mugomba rinodzikira:
Zvishandiso zvekuboorera, maturusi ekunyora magwaro, uyezvishandiso zvekushanda: Zvishandiso izvi zvinogara kwenguva pfupi, saka zvinoda simba rakawanda asi hazvidi ngura yakawanda.
Zvishandiso zvekupedzisa: Zvinofanira kushanda pasi pegomba kwemakore akati wandei, saka tembiricha pasi pegomba uye kuramba ngura zvinofanira kufungwa nezvazvo.
Kubva pamaonero enzvimbo dziri pasi pevhu, dzinowanzo patsanurwa muzvikamu zvina:
Nzvimbo yakajairika (isina hydrogen sulfide (H₂S), ine carbon dioxide (CO₂) iri pasi pe1 psi [inenge 0.0069 MPa]); Nzvimbo yengura yeH₂S; Nzvimbo yengura yeCO₂; Nzvimbo yengura yakasanganiswa yeH₂S neCO₂.
Kusarudzwa Kwezvinhu zveDownhole Tools munzvimbo dzakajairika
Pazvishandiso zvemugodhi zvinoshandiswa munzvimbo dzakajairwa, simbi dzesimbi dzakadai se4130, 4140, uye 4145 (magiredhi eAISI) dzinowanzo sarudzwa. Makemikoro uye simba remakanika rezvinhu izvi zvinoratidzwa mumatafura anotevera:
1. Kuenzanisa Kwezvinhu Zvinoumba Makemikari (Chikamu Chikuru)
| Chinhu | 4130 (AISI) | 4140 (AISI) | 4145 (AISI 4145H) |
| Kabhoni (C) | 0.28-0.33% | 0.33-0.48% | 0.43-0.48% |
| Manganese (Mn) | 0.40-0.60% | 0.75-1.00% | 0.75-1.00% |
| Chromium (Cr) | 0.80-1.10% | 0.80-1.10% | 0.80-1.10% |
| Molybdenum (Mo) | 0.15-0.25% | 0.15-0.25% | 0.15-0.25% |
| Silikoni (Si) | 0.15-0.35% | 0.15-0.35% | 0.15-0.35% |
| Sarufa (S)/Phosphorus (P) | ≤0.040% (S), ≤0.035% (P) | ≤0.030% (S), ≤0.030% (P) | ≤0.030% (S), ≤0.030% (P) |
2. Kuenzanisa Simba reMichina
| Zvivakwa zveMechanical | 4130 | 4140 | 4145 (Giredhi H, Kukosha Kwakajairika) |
| Simba reKusimba | 760-871 MPa | 795-1000 MPa | 950-1100 MPa |
| Simba reGoho | ≥635 MPa | ≥610-750 MPa | ≥750 MPa |
| Kureba | ≥17% | ≥22% | ≥10% |
| Kuoma (HRC) | 28-32 (mushure mekudzima nekudzikamisa) | 28-34 (mushure mekudzima nekudzikamisa) | 32-36 (mushure mekudzima nekudzikamisa) |
Sezvatinoona kubva pamatafura:
Kabhoni yezvinhu izvi inowedzera mukutevedzana (4130 < 4140 < 4145), nepo zviri mune zvimwe zvinhu zvakafanana.
Hunhu hwemakanika: Simba rinoenderana zvakanaka nehuwandu hwekabhoni—4145 ine simba guru—ukuwo kusimba kwayo kunoderera zvakasiyana, ne4130 ine kusimba kwakanyanya.
4130, 4140, uye 4145 ndiwo magiredhi epasi rose ezvigadzirwa, uye akaenzana nawo muChina ndeaya anotevera:
- 4130 (AISI) ≡ Gwaro remumba 30CrMoA;
- 4140 (AISI) ≡ Gwaro remumba 42CrMo;
- 4145H (AISI) ≡ Gwaro remumba 45CrMo.
4130 na4140 dzakakodzera maturusi emazuva ano ekupedzisa, zvichinyanya kukosha pakushandisa mari shoma uye kugona kupinza.
4145H inowanzo shandiswa muzvishandiso zvine simba guru, zvine simba guru, kana kuti zvinotakura zvinhu zvakawanda (zvakaita sezvishandiso zvekuboorera nekushandisa pakugadzira), zvichinyanya kukoshesa simba uye kuramba kupfeka.
Kusarudzwa Kwezvinhu Zvekushandisa Pakupedzisa Munzvimbo Dzinoparadza
Pazvishandiso zvekupedzisa munzvimbo dzinopisa, kusarudzwa kunonyanya kuenderana nekumanikidzwa kwegasi rine acidic (rakakamurwa kuita mhando mbiri: CO₂ neH₂S).
1. Matsime ane CO₂ Yakawanda
Kuti CO₂ isaparare, huwandu hwe chromium (Cr) muzvinhu hunofanira kuwedzerwa. Zvinhu zvinotevera (zvakarongwa nehuwandu hweCr) zvinogona kufukidza matsime neCO₂ chikamu chekumanikidzwa chinotangira pa 0.5 MPa kusvika 14 MPa.：3Cr (Zviri mukati meCr ≈ 3%), 9Cr1Mo (Zviri mukati meCr ≈ 9%), 13Cr, S13Cr, 17Cr (giredhi S17400), 22Cr (semuenzaniso, duplex stainless steel S32205), uye 25Cr steel.
2. Matsime ane H₂S Yakawanda
Kuti kuderedze ngura ye sulfide stress cracking (SSC), huwandu hwe nickel (Ni) muzvinhu hunofanira kuwedzerwa. Kana H₂S chikamu chekumanikidzwa chakakwira kupfuura 1 MPa uye CO₂ chikamu chekumanikidzwa chakakwirawo, ma alloys ekupisa kwakanyanya akadai seanotevera anofanira kushandiswa:
Kusarudzwa Kwezvinhu Zvezvikamu Zvakakosha
Zvinhu zvikuru zvinoshandiswa pakushandisa maturusi ari pasi pevhu (zvinosangana nemvura yemugodhi nemitoro yekutakura): Zvakasarudzwa zvinoenderana nezvinodiwa pamusoro apa.
Zvikamu zvekuchekerera: Kazhinji zvinogadzirwa nesimbi yeH62 brass kana S36600 stainless steel bars.
Zvikamu zvekunamira: Zvakasarudzwa kubva pa20CrMoTi kana 20CrMnTi. Kuti pave nekuomarara kwenzvimbo, kurapwa kwekuomarara kwenzvimbo (neukobvu hwe0.8-1.2 mm hwakakamurwa) kunodiwa, izvo zvinowedzera kuomarara kwenzvimbo kusvika kuHRC 58-62.
Zvimwe Zvinhu Zvinokanganisa Kusarudzwa Kwezvinhu uye Maitiro Ekutarisa
Pamusoro pemagasi ane acidic, kusarudzwa kwezvinhu zvemabhokisi emafuta emugomba uye zvishandiso zvemugomba zvine chekuitawo nekupisa kwemugomba, kuchekwa kwemvura, mwero wemineralization, uye pH. Kuti uwane zvimwe zvinodiwa zvekusarudza, tarisa standard Q/HS 14015 Design Guidelines for Corrosion Prevention of Tubing and Casing muOffshore Oil and Gas Wells.
Landrill inopawo simbi ine bhaa resimbi re41430,4140,4145.
Sununguka kubvunza.https://www.landrilloiltools.com/
Nguva yekutumira: Gunyana-03-2025
5-1203, Dahua Industrial Zone, Nhamba 2 Yunshui Road, High-tech development zone, Xi'an, 710065, China
86-13609153141
