Nkhani

Dongosolo Loyendetsa Lozungulira (RSS) ndi njira yobowola yowongolera yomwe, pamene chingwe chobowola chikuzungulira, imayang'anira ndikulamulira kuzungulira kwa chitoliro chobowola nthawi yeniyeni kuti ichite ntchito zowongolera, zomwe zimathandiza kuti ntchito zobowola zifike pamalo oyenera. Imagwiritsidwa ntchito kwambiri m'zitsime zolunjika ndi zitsime zopingasa.
I. Kubowola Molunjika
Kuboola molunjika ndi ukadaulo woboola womwe umagwiritsa ntchito zida zapadera zochepetsera madzi, zida zoyezera, ndi njira zowongolera bwino njira yoboola madzi, zomwe zimathandiza kuti bowolo lifike pa malo otsetsereka omwe adakonzedweratu motsatira njira inayake. Mwachidule, kuboola molunjika ndi njira yoboola bowolo lomwe limatsatira ngodya yopatuka ndi azimuth yokonzedwa kale kuti lifike pamalo omwe likufunidwa.
Mitundu yayikulu ya mbiri imaphatikizapo magulu atatu:

Mbiri ya magawo awiri: gawo loyima + gawo lomangika
Mbiri ya magawo atatu: gawo loyima + gawo lomangika + gawo lozungulira
Mbiri ya magawo asanu: gawo lapamwamba loyima + gawo lomangika + gawo lozungulira + gawo lotsika + gawo loyima pansi

Zinthu zitatu zofunika kwambiri paukadaulo wobowola mbali imodzi:

① Kugwiritsa ntchito chida chodulira (chodulira chodulira) pobowola mbali imodzi
② Kugwiritsa ntchito injini yolowera pansi pamodzi ndi chopondapo chopindika pobowola mbali imodzi
③ Kugwiritsa ntchito mota yoyendetsa (mota yokhotakhota yokhala ndi dzenje lolowera) pobowola mbali zonse

II. Kuboola Molunjika

Zitsime zopingasa ndi mtundu wa chitsime cholunjika. Zitsime zamafuta zachikhalidwe zimakhala zopingasa kapena zopatuka kudzera m'thanki, ndi gawo lalifupi lodutsa m'thanki. Mosiyana ndi zimenezi, zitsime zopingasa zimabowoledwa molunjika kapena zopatuka pansi kupita kuthanki, kenako chitsimecho chimatembenukira pafupifupi mopingasa, chikuyenda motsatira thankiyo ndikubowola gawo lalitali kudzeramo mpaka litamalizidwa. Zitsime zotere zimatha kudutsa m'thankiyo kwa mamita mazana ambiri kapena kupitirira zikwi ziwiri, zomwe zimathandiza kuti mafuta abwerere bwino. Kukana kwa madzi osungiramo madzi kulowa m'thankiyo kumachepa, zomwe zimapangitsa kuti mphamvu yopangira ikhale yokwera kangapo kuposa ya zitsime wamba zopingasa kapena zopatuka.

Bwererani ku RSS

RSS imapereka zabwino monga kuchepetsa kukangana ndi mphamvu, kulowerera kwakukulu (ROP), mtengo wotsika, nthawi yochepa yomanga chitsime, njira yosalala ya chitsime, kusinthasintha kosavuta, komanso kutalika kwa gawo lopingasa. Makamaka imakhala ndi makina ozungulira ozungulira pansi, makina owunikira ndi kulamulira pamwamba, komanso ukadaulo wolumikizirana wa njira ziwiri wolumikiza zigawo ziwirizi.

RSS ikhoza kugawidwa m'magulu malinga ndi momwe makina ake oyendetsera ntchito amagwirira ntchito.tsankho losasinthikanditsankho lamphamvuMalinga ndi mfundo yoyendetsera, ikhoza kugawidwa m'magulu awiri:kankhirani-pa-bitndimfundo-yonsemachitidwe.

① Kankhirani pang'ono

Dongosololi limagwiritsa ntchito mphamvu ya mbali imodzi pa chidutswa chapafupi ndi chidutswa. Chokhazikika cha offset cha push-the-bit rotary steerable bottom hole assembly (RSBHA) chimayikidwa pafupi ndi chidutswacho, ndi zokhazikika zingapo zobowolera zolumikizidwa motsatizana kumbuyo kwake. Panthawi yoyendetsa, mphamvu yopotoka yomwe imapangidwa ndi chida chowongolera cha eccentric imapangitsa kuti RSBHA itembenuke ndikumanga ngodya. (Izi nthawi zambiri zimapangitsa kuti chitsime chikhale chozungulira, kuyeretsa mabowo molakwika, komanso kufupika kwa mainchesi a chitsimecho, mwachitsanzo, kukula kwa chitsimecho kumakhala kochepa kuposa mainchesi a bit.)

② Mfundo-yoyambira

Dongosololi limayendetsa pang'onopang'ono kupita ku njira yolowera ya wellbore yomwe mukufuna mwa kupinda chingwe chobowolera pafupi ndi pang'onopang'ono. Chokhazikika cha offset cha point-the-bit RSBHA chimayikidwa pakati pa zokhazikika ziwiri, zomwe zimapangitsa kuti chiwongolero chozungulira chikhale chozungulira makamaka kudzera mu ngodya ya bit. (Ubwino wabwino wa wellbore, wokhala ndi kulimba kwakukulu kwa mwendo wopitirira 15°/30m.)