Kuchera jecha zambuko rakanamira uye kurapa tsaona

Zambuko rejecha rakanamira rinonziwo jecha rinogadzika rakanamira, hunhu hwaro hwakafanana nekudonha, uye kukuvadza kwaro kwakaipisisa kupfuura kunamira kwakanamatira.

1.Chikonzero chekugadzira bhiriji rejecha

(1) Zviri nyore kuitika kana uchichera nemvura yakachena mune yakapfava;
(2) Iyo yekumusoro casing idiki zvakanyanya, uye iyo yakapfava stratum inoburitswa yakawandisa;
(3) Kuwedzera flocculant yakawandisa kune yekuchera mvura;
(4) Mechini yekuchera kumhanya inokurumidza, kudhirowa kwemvura kuchinjika hakugone kuenderera;
(5) Shandura iyo yekutanga yekuchera mvura system mutsime, kana zvakanyanya shandura mashandiro emvura yekuchera;

Sand bridge sticking phenomenon

(1) Hapana mvura yekuchera inodzoserwa kutsime panguva yekuchera kana mvura yekuchera inodzoserwa mu t.anoboora pombi;

(2) Kupokana kwezvishandiso zvekuchera zvinyoro zvinyoro, uye hapana yakagadziriswa kamwe kamwe kuramba point;

(3) Kana jecha zambukoe inoitika panguva yekuchera, iyo annulus liquid level inodonha, uye chiyero chemvura mugomba remvura yemudziyo wekuchera inodonha nekukurumidza;

(4) Mushure mokunge mudziyo wekuchera wapinda mubhiriji rejecha, pombi isati yatanga, kufamba uye kutenderera uye kutenderera kwakasununguka. Kana pombi ichizotangwa, pombi yepombi inokwirase, uremu hwakarembera huchadonha, uye mvura yekuchera haidzokeri kana kudzoka zvishoma patsime;

(5) Pakuchera, senge kudiki kudhiraivha kwemvura kuchinjika kana kusakwana kwejecha kutakura, mukutenderera kwepombi, chishandiso chekuchera kumusoro uye pasi kutenderera kutenderera hakuna kuramba, kana pombi yamiswa, chishandiso chekuchera hachigone kusimudzwa, kunyanya hapana yakasimba chikamu chekuchera mvura, izvi zvinoitika zvakanyanya.

Kudzivirirwa kwezambuko rejecha rakanamatira

(1) Zvakanakisisa kusaboora nemvura;

(2) Muchikamu chegomba rakashama, nguva yekuchera mvura yekuzorora haifaniri kunge yakareba;

(3) Optimization of Drilling fluid design;

(4) Pakucherag, huwandu hwakakodzera hwepombi hunofanira kusarudzwa maererano nemaitiro ekugadzira;

(5) Kuchengetedza kugadzikana kwekuchera mvura system uye kuita.

Kurapa kwekunamatira sand bridge

(1) Kana iyo yekuchera fluid inogona kungopinda pombi, chishandiso chekuchera chakanamira, uye hachigone kufambiswa, chinofanira kuverengerwa nzvimbo yekadhi poindi, uye nguva inofanira kudzoserwa kubva padyo nenzvimbo yekadhi.

(2) Nzvimbo yekugadzira bhiriji rejecha inogona kunge iri muchikamu chepamusoro kana chikamu chepasi, asi chikamu chayo chetsime hachina kureba, uye hazvibviri kuviga zvishandiso zvese zvekuchera. Kana bhiriji rejecha riri muchikamu chepamusoro, kunyangwe pasina akawanda maturusi ekuchera akadururwa kekutanga, hazvibviri kushandisa refu barrel sleeve milling kubvisa jecha zambuko, uye ipapo chibooreso chiri pabhatani. kudzorera kutenderera, uye gare garezvinhu zviri nyore kuita. Kana bhiriji rejecha riri muchikamu chezasi, nzira yekuputira yakasununguka backbuckle inofanira kushandiswa kudira unstuck chibooreso mudziyo panguva, uye rinotevera chibooreso mudziyo anogona chete unstuck kubudikidza milling backbuckle.

(3) Kuchera bhiriji rejecha kunowanzoitika panguva yekugumburwa, chibooreso hachisi pazasi pegomba, saka mukugayo, hove dzinogona kunyura, mune iyi nyaya, inofanirwa kuvharirwa.iately pabhatani, chishandiso chekuchera, zvinokwanisika kuburitsa kadhi muchiitiko. Kana tikakwanisawo kutenderedza mvura yekuchera, matambudziko ese anogadziriswa.

(4) Kana tambo yekuchera yakashongedzerwa nechepakati, bhiriji rejecha rinowanzova pamusoro pekupedzisira centralizer, saka mushure meguyo rekuisa kune centralizer, hazvifanirwe kudzoreredza kugayo centralizer, uye chirongo chinogona kuzununguka uye unstuck.