Isiphumo seHydrogen Sulfide kwiZixhobo

Umonakalo wenkonzo ye-hydrogen sulfide emanzi ibonakala rhoqo kwi-carbon kunye ne-low alloy steel equipment equlethwe kwizixhobo ezivelisa ii-hydrocarbons, ezifana ne-oyile kunye negesi, iikhemikhali kunye ne-petrochemical industries. Ii-asethi ezikwimekobume emuncu enamanzi edibanisa umxholo we-H2S omkhulu kune-50 ppm kunye namaqondo obushushu angaphantsi kwe-82° C (180° F) achaphazeleka ngakumbi kumonakalo omanzi we-H2S. Iintsimbi ezindala okanye "ezingcolileyo" zithandwa kakhulu kumonakalo we-H2S omanzi ngenxa yokuba ngokuqhelekileyo zine-volumetric inclusions, i-laminations, kunye nokungafezeki kwe-original fabrication kuzo zombini isiseko setsimbi kunye neendawo ze-weld deposit. Umonakalo we-H2S omanzi ujongwa ngakumbi kumaqokobhe enqanawa yoxinzelelo, iitanki, okanye amacandelo emithamo emikhulu yobude bomthungo odityanisiweyo wemibhobho kunemibhobho eqhelekileyo engenamthungo, iityhubhu, okanye ifogi.

Xa kukho ukufuma, i-H2S isebenzisana nentsimbi yodonga lwentsimbi ekhupha i-hydrogen kwi-oyile. I-hydrogen isasazeka kwintsimbi, idibanisa ukwenza i-hydrogen yemolekyuli ekupheliseni. Ngokuhamba kwexesha, ngakumbi nangakumbi i-hydrogen ibanjiswa isakha uxinzelelo ngoko ke uxinzelelo kwintsimbi lukhokelela ekungaphumelelini kwendawo. Nazi ezinye zeziphene ezahlukeneyo ezinokubonwa:

• Uxinzelelo lubangela iintanda eziqhele ukuba yilaminar kunye ne-oriented parallel kwimigangatho yangaphakathi nangaphandle yecandelo. Ngokuhamba kwexesha, ezi ntandabuzo zikholisa ukujoyina ngenxa yokwakhiwa koxinzelelo lwangaphakathi kunye nemimandla yoxinzelelo lwasekhaya kwindawo ezonakeleyo ezisasazeka ngobuninzi becandelo. Oku kwaziwa ngokuba yi-Hydrogen Induced Cracking (HIC) okanye i-stepwise cracking.
• Ukuba i-lamination yenzeke kufuphi nomphezulu, sinokuphela kunye ne-blister ephuma ngaphakathi ngaphakathi, ngaphandle, okanye ngaphakathi kodonga lwezixhobo zoxinzelelo. Ukongezelela, iintanda zinokusuka kwi-perimeter ye-blister, enokuthi isasazeke kwindlela yodonga, ngakumbi kufuphi ne-welds.
• I-Stress Oriented Hydrogen Induced Cracking (SOHIC) ibonakala njengoluhlu lweentanda ezipakishwe phezulu enye kwenye enokuba nesiphumo sokuqhekeka kobungqimba obujikeleze isiseko sesinyithi esimelene ngqo noMmandla oChaphazeleke bubushushu (HAZ).

Xa kuziwa kwiindlela zoVavanyo olungaPhambi (NDT), uvavanyo oluqhelekileyo lwe-Ultrasonic (UT) lusetyenziswe ngokubanzi kusetyenziswa isiganeko esiqhelekileyo kunye ne-shear wave wave. Nangona kunjalo, kunzima ukwahlula phakathi kwe-lamination / inclusions kumonakalo wenkonzo. Ikwayinkqubo enzima necothayo exhomekeke kakhulu kumsebenzisi.

Iplagi entsha ye-hydrogen sulfide resistant composite (i-fiberglass) yebhulorho eyilwe yaza yaphuhliswa lisebe le-R&D yeVigor ifikelele kwiziphumo ezanelisayo kwilabhoratri nakwindawo yomthengi, kunye neqela lobuchwephesha leVigor ngoku linokuyila kwaye livelise ngokweemfuno zomthengi ukuhlangabezana neemfuno zomthengi. iimfuno kwisiza. Ukuba unomdla kwiimveliso zeplagi yebhulorho yeVigor, nceda ungalibazisi ukunxibelelana neqela leVigor kwiimveliso ezilungiselelwe kunye neenkonzo ezisemgangathweni ezizodwa.

Ngolwazi oluthe kratya, ungabhalela kwibhokisi yethu yeposiinfo@vigorpetroleum.com&marketing@vigordrilling.com