Tasirin Hydrogen Sulfide akan Kayan aiki

Wet hydrogen sulfide sabis na lalacewa ana yawan gani a cikin carbon da ƙananan kayan ƙarfe na ƙarfe waɗanda ke ƙunshe a cikin wuraren da ke samar da hydrocarbons, kamar mai da gas, sinadarai, da masana'antar petrochemical. Kayayyakin da ke cikin yanayi mai tsami mai ruwa wanda ya haɗu da abun ciki na H2S sama da 50 ppm da yanayin zafi da ke ƙasa 82°C (180°F) suna da sauƙin kamuwa da lalacewar H2S. Tsofaffi ko “datti” karafa sun fi fuskantar rigar lalacewar H2S saboda gabaɗaya suna da ƙarin haɗaɗɗen ƙira, laminations, da lahani na ƙirƙira na asali a cikin sassan ƙarfe na tushe da walda. An fi ganin lalacewar rigar H2S a cikin harsashi na jirgin ruwa, tankuna, ko sassan mafi girman diamita a tsaye-welded abubuwan bututu fiye da bututu, bututu, ko ƙirƙira.

A gaban danshi, H2S yana hulɗa tare da ƙarfe na bangon karfe yana sakin hydrogen a cikin rafin mai. Hydrogen yana bazuwa cikin karfe, yana hadawa don samar da hydrogen kwayoyin halitta a lokacin da ba a daina ba. A tsawon lokaci, ƙara hydrogen ya zama tarko yana haɓaka haɓakawa don haka damuwa a cikin ƙarfe yana haifar da gazawar gida. Ga wasu daga cikin lahani iri-iri da ake iya gani:

• Damuwa yana haifar da tsagewa waɗanda ke gabaɗaya laminar kuma sun daidaita daidai da saman ciki da waje na ɓangaren. A tsawon lokaci, waɗannan fasahohin suna da alaƙa da haɗuwa saboda haɓakar matsa lamba na ciki da yuwuwar filayen damuwa na gida a cikin yankuna da suka lalace suna yaduwa ta cikin kauri na ɓangaren. Ana kiran wannan da Haɗaɗɗen Haɗaɗɗen Haɗaɗɗen Hydrogen (HIC) ko fashe-fashe.
• Idan lamination ya faru a kusa da saman, za mu iya ƙare tare da blister yana tasowa daga ciki, waje, ko a cikin kauri na bango na kayan aikin matsa lamba. Bugu da ƙari, tsagewa na iya shimfiɗa daga kewayen blister, mai yuwuwar yaduwa ta hanyar bango, musamman kusa da walda.
• Stress Oriented Hydrogen Induced Cracking (SOHIC) yana bayyana azaman jerin tsage-tsafe da aka jera saman juna wanda zai iya haifar da tsagewar kauri a kusa da karfen tushe kai tsaye kusa da Yankin da Heat Ya shafa (HAZ).

Idan ya zo ga hanyoyin Gwajin marasa lalacewa (NDT), an yi amfani da Gwajin Ultrasonic na al'ada (UT) da yawa ta amfani da abubuwan da suka faru na al'ada da bincike na igiyar ruwa. Yana da, duk da haka, wahalar bambanta tsakanin lamination/ haɗawa daga lalacewa a cikin sabis. Hakanan tsari ne mai wahala da jinkiri wanda ya dogara sosai ga aiki.

Sabuwar gada mai jurewar hydrogen sulfide (fiberglass) gada wanda sashen R&D na Vigor ya tsara da haɓaka ya sami sakamako mai gamsarwa a cikin dakin gwaje-gwaje da kuma wurin abokin ciniki, kuma ƙungiyar fasaha ta Vigor yanzu za ta iya tsarawa da samar da ita bisa ga bukatun abokin ciniki don saduwa da abokin ciniki. akan-site bukatun. Idan kuna sha'awar samfuran toshe gada na Vigor, don Allah kar a yi jinkiri don tuntuɓar ƙungiyar Vigor don samfuran keɓancewa da sabis na inganci na keɓance.

Don ƙarin bayani, kuna iya rubutawa zuwa akwatin saƙonmuinfo@vigorpetroleum.com&marketing@vigordrilling.com