Ma valve obowola a API 7-1 Chifaniziro Chodziwika

Ma valve a API 7-1 Obowola Zingwe

Kufotokozera Kwachidule:

Ma valve a chingwe chobowolera amaletsa madzi kutuluka m'chingwe chobowolera nthawi zambiri ngati chobowoleracho chikagunda ndi gawo lotsika pansi. LANDRILL ikhoza kupereka valavu yotetezeka yotseguka bwino (FOSV), valavu ya Kelly, choletsa kuphulika kwa mkati (IBOP), valavu yowunikira Drop-in, valavu yoyandama.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Valavu Yonse Yotsegulira Chitetezo (FOSV)

Vavu Yotsekera Yonse (chidule cha FOSV) ndi valavu yotetezera yamtundu wa mpira yomwe imagwiritsidwa ntchito kuyimitsa kuyenda kwa chingwe chobowolera pamene chingwe chobowolera chikuchotsedwa pachitsime.

FOSV ndi valavu yotetezera yotsegula thupi lonse, kotero siisokoneza magwiridwe antchito a zida monga migolo yapakati kapena zida zofufuzira. Yapangidwa kuti ibayidwe pamwamba pa chitoliro chobowolera kapena chingwe cha chubu pansi pa rig ndikutsekedwa mwachangu ngati chitsime chagunda.

Mukayitanitsa chonde tchulani izi:
Kulumikizana.
OD ndi ID
Kupanikizika kwa Ntchito: 5,000 / 10,000 / 15,000 PSI;

Valavu ya Kelly

Valve ya Kelly imatchedwanso Kelly cock kapena Gray valve. Ndi valavu yowongolera ndi manja mu makina ozungulira chingwe chobowola ndipo ndi imodzi mwa zida zothandiza kupewa kuphulika. Valve ya Kelly imagawidwa mu Upper Kelly Valve ndi Lower Kelly Valve. Upper Kelly Valve imalumikizidwa ndi swivel sub ndi Kelly. Lower Kelly valve imalumikizidwa ndi kumapeto kwa Kelly ndi pamwamba pa chitoliro chobowola kapena kumapeto kwa Kelly save sub. Kuzungulira wrench ya valve yotetezeka yotseguka kwathunthu 90° kuti igwire ndi kutseka. Pa ntchito yobowola, kuti tipewe ngozi zoopsa, ma valve a Kelly ayenera kulumikizidwa kumapeto onse a Kelly kuti tipewe kutayika kwa kubowola ndi kuphulika. Valve ya Kelly cock, yomwe ndi valavu ya mpira yoyendetsedwa ndi manja yomwe imayendetsedwa mu ID ya chingwe chobowola, Ndi imodzi mwa zida zothandiza kupewa kuphulika.

Choko cha kelly chimagawidwa m'magulu awiri: upper kelly cock valve ndi lower kelly cock valve.
Choko chapamwamba cha kelly chimalumikizidwa ndi kumapeto kwapansi kwa chozungulira ndi kumapeto kwa kelly. Choko chapansi cha kelly chimalumikizidwa ndi kumapeto kwapamwamba kwa chitoliro chobowolera ndi kumapeto kwa kelly kapena chimalumikizidwa pakati pa kumapeto kwa kelly saver subs.
Choko cha kelly chili ndi ntchito yosavuta, choko cha kelly chikhoza kuyikidwa pa kapena kuchotsedwa pongotembenuza choko chapaderacho pa madigiri 90 malinga ndi njira yosonyezera. Pa nthawi yobowola, choko cha kelly chiyenera kulumikizidwa kumapeto kwa pamwamba ndi pansi pa choko cha kelly.

Mukayitanitsa chonde tchulani izi:
Mtundu wapamwamba kapena wotsika;
Chida OD;
Kupanikizika kwa Ntchito: 5,000 / 10,000 / 15,000 PSI;
Kulumikizana ndi chida.

Mkati mwa BOP

Choletsa kuphulika kwa mkati (Inside BOP) ndi chida chapadera, chomwe chingadulidwe kudzera mu BOP kuti chilumikizidwe ndi zida zobowolera zowonjezera mwachangu momwe zingathere, pamene kuphulika kwachitika panthawi yokweza zida zobowolera, choletsa kuphulika kwa mkati chili ndi zabwino zambiri monga kuthamanga kwambiri, kutsekedwa kodalirika, kosavuta kugwiritsa ntchito, kusintha mwachangu ndi zina zotero.

Mukayitanitsa chonde tchulani izi:
Chida OD;
Kupanikizika kwa Ntchito: 5,000 / 10,000 / 15,000 PSI;
Kulumikizana ndi chida.

Pamene chida chobowolera chikutuluka m'bowo, kuphulika kumachitika chifukwa cha zotsatira zake. Pamene madzi, mafuta, nthunzi kapena madzi akutuluka mu chitoliro chobowolera, choletsa kuphulika kwa mkati chiyenera kulumikizidwa mwachangu ku chitoliro chobowolera. Choletsa kuphulika kwa mkati chikhoza kulumikizidwa mosavuta ku chitoliro chobowolera chifukwa chakuti valavu ya choletsa kuphulika ili pamalo otseguka ndipo madzi omwe ali mu bowolo la pansi amatha kutuluka kuchokera mu choletsa kuphulika kwa mkati ali pamalo otseguka ndipo madzi omwe ali mu bowolo la pansi amatha kutuluka kuchokera mu choletsa kuphulika kwa mkati. Ndodo yothandizira ikhoza kutseka valavu pochotsa boluti yotseka, pakadali pano, choletsa kuphulika kwa mkati chimalola madzi kupopedwa m'bowo kuchokera pamwamba mpaka pansi, koma madzi omwe ali mu bowolo sangathe kulowa mu chingwe chobowolera ndipo pamapeto pake kutuluka kuchokera mu choletsa kuphulika kwa mkati. Kenako cholinga cha van yopewera kuphulika chikwaniritsidwa ndi izi, Tulutsani gawo lothandizira kuwongolera madzi ndikuyamba kuyenda kwa pampu.

Valavu yowunikira yolowera

Ma Vavulo Oyang'anira Olowera amaletsa kubwereranso kwa madzi panthawi yobowola ndipo ndi oyenera nthawi zambiri pobowola pomwe kubwereranso kwa madzi kudzera mu chingwe chobowola kumakhala koopsa ndipo kugwira ntchito bwino kumafuna ubwino wa chitoliro chodzaza ndi bowo. Mwa kuletsa kukwera kwa madzi kudzera mu chitoliro chobowola, koma kulola madzi kuti apompedwe pansi kuti ayendetse chitsime, ma vavulo amapatsa chobowola njira zowongolera kuthamanga kwa madzi a chitoliro chobowola pamene pakufunika, kukonza kwambiri ndikuchepetsa kulamulira kwa chitsime.

Pamene kuphulika kwachitika, ulusi wolumikizira wa kelly umachotsedwa nthawi yomweyo ndikuyika valavu yowunikira mu chitoliro chobowolera kenako nkupopedwa pansi kupita pamalo oyenera. Motero kuphulikako kungapewedwe.

Mukayitanitsa chonde tchulani
Chibowo chaching'ono kwambiri chomwe chimagwiritsidwa ntchito pobowola chomwe valavu yoyezera iyenera kudutsa.
Kukula ndi mtundu wa kulumikizana kwa gawo lofikira.
Kunja kwa mtunda wa zida zolumikizirana.

Valavu yoyandama

Vavu yoyandama imaletsa madzi obowola, zidutswa ndi zinyalala zachitsulo kuti zisayenderere mmwamba mwa chingwe chobowola. Mavavu amenewa akayikidwa bwino pa chingwe chobowola amapereka chitetezo chowonjezera.

Vavu yoyandama ingagwiritsidwe ntchito kulikonse kuyambira pamwamba mpaka pansi pa chingwe chobowolera. Malo ake ofala kwambiri ndi mu BHA (bottom hole assembly) yomwe imaphatikizapo bit, ndipo ikhoza kuphatikizapo bit sub, near bit stabilizer, other stabilizers, float sub, cross-over sub, mud motor (top sub), drill collar, ndi drillpipe. Mavavu angapo oyandama angagwiritsidwe ntchito mu chingwe chimodzi, ngakhale kuti kuyika kawiri sikuvomerezeka chifukwa cha kuwonongeka kwa valavu yoyandama pakakhala kupanikizika kwakukulu. M'malo mwake, lekanitsani mavavuwo m'malo osiyanasiyana olumikizira zida.

Ma valve oyandama a Drill Pipe (DP) amapezeka kuti agwiritsidwe ntchito nthawi zonse, H2S – 300°F service (HNBR/HSN) ndi H2S – 400°F service (Viton.)

Chitsanzo F, FA:1R, 1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R, 5F6R, ndi 6F
Chitsanzo G,GA, GC:1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R ndi 5F6R

Mukayitanitsa chonde tchulani izi:
Mtundu wa valavu yoyandama (Model F kapena Model G);
Kukula kwa valavu yoyandama;
Kulumikizana ndi OD ya sub.