Downhole Debris Nuv Ntses thiab Stuck Drilling Accident Treatment

1.Downhole khib nyiab Nuv ntses

1.1Hom downhole poob

Raws li lub npe thiab qhov xwm txheej ntawm cov khoom ntog, hom khoom ntog hauv mine yog feem ntau: cov yeeb nkab ntog khoom, pas nrig ntog khoom, hlua cov khoom ntog thiab cov khoom me me poob.

1.2.Pip poob khoom

Ua ntej nuv ntses, cov ntaub ntawv tseem ceeb ntawm cov roj thiab dej Wells yuav tsum tau ua ntej, uas yog, cov ntaub ntawv drilling thiab roj yuav tsum tau nkag siab meej, cov qauv ntawm lub qhov dej, qhov xwm txheej casing, thiab seb puas muaj cov khoom poob thaum ntxov. Qhov thib ob, tshawb xyuas qhov ua rau cov khoom poob, seb puas muaj deformation thiab xuab zeb nto faus tom qab poob rau hauv qhov dej. Xam qhov siab tshaj plaws uas tuaj yeem ua tiav thaum nuv ntses, txhawb nqa lub derrick thiab tus txiv neej txoj hlua qhov. Nws tseem yuav tsum tau txiav txim siab tias tom qab ntes cov khoom poob, yog tias daim npav hauv av yuav tsum muaj kev tiv thaiv thiab kev sib haum xeeb.

Cov cuab yeej siv nuv ntses: Tuag dab tshos, Taper kais, hmuv, Slip Overshot thiab lwm yam.

Nuv ntses txheej txheem:

⑴Downhol mus ntsib ntawm Impression Blocks kom CEEB TOOM txoj hauj lwm thiab cov duab ntawm cov khoom poob.

⑵ Raws li qhov xwm txheej ntawm cov khoom poob thiab qhov loj ntawm qhov Annular qhov chaw ntawm cov khoom poob thiab cov casing, xaiv cov cuab yeej nuv ntses tsim nyog lossis tsim thiab ua cov cuab yeej nuv ntses los ntawm koj tus kheej.

⑶ Npaj kev tsim kho thiab kev ntsuas kev nyab xeeb, thiab tom qab tau txais kev pom zoo los ntawm cov tuam tsev muaj feem cuam tshuam raws li cov txheej txheem tshaj tawm, kev kho nuv ntses yuav tsum tau ua raws li kev tsim kho, thiab kos duab kos duab yuav tsum tau kos rau cov cuab yeej downhole.

⑷ Kev ua haujlwm nuv ntses yuav tsum du.

⑸ Txheeb xyuas cov khoom Fished thiab sau cov ntsiab lus.

1.3.Rod poob khoom

Feem ntau ntawm cov ntog no yog hom pas nrig, thiab tseem muaj cov pas nrig hnyav thiab meters. Ib txhia poob rau hauv lub casing, ib txhia poob rau hauv tubing.

⑴Nuv ntses hauv tubing

Nws yog ib qho yooj yim rau ntses cov pas nrig tawg hauv lub raj, xws li tus pas nrig tuaj yeem rub tau thaum tus pas nrig rub tawm ntawm lub buckle los yog lub nruas dredging rau nuv ntses, yog tias tsis nuv ntses, koj tuaj yeem ua haujlwm ntawm tubing. .

⑵Nuv ntses hauv lub casing

Casing nuv ntses yog qhov nyuaj, vim hais tias lub casing txoj kab uas hla yog loj, tus pas nrig yog slender, cov hlau yog me me, yooj yim rau khoov, yooj yim rau rub tawm, thiab cov duab ntawm ntog zoo yog complex. Thaum nuv ntses, nws tuaj yeem nuv ntses nrog nqa nqa nuv phau ntawv khau slip overshot lossis xoob-blade Nuv ntses ntaus ntawv. Thaum cov khoom poob yog khoov rau hauv lub casing, nws tuaj yeem rov qab tau nrog nuv ntses. Thaum cov khib nyiab tau ntim rau hauv lub qhov thiab tsis tuaj yeem rov qab tau, nws yog milled nrog lub tes tsho zeb los yog khau zeb, thiab cov khib nyiab rov qab nrog cov hlau nplaum catcher.

1.4.Nuv ntses me me

Muaj ntau hom me me ntog, xws li cov pob steel, pliers, cones, screws thiab lwm yam. Xws li cov khib nyiab me me tab sis nyuaj heev kom rov zoo. Cov cuab yeej tseem ceeb rau kev nuv ntses me me yog cov khoom siv nuv ntses hlau nplaum, rub, rov qab ncig nuv ntses pob tawb thiab lwm yam.

2.Stuck Drilling Accident Treatment

Muaj ntau yam laj thawj rau daig drilling, yog li muaj ntau hom kev daig drilling. Common sand Stuck, wax daig, ntog khoom daig, casing deformation daig, cement solidification daig thiab lwm yam.

2.1.Sand Stuck kho

Yog hais tias lub sij hawm sticking ntawm lub cuab yeej tsis ntev los yog cov xuab zeb jam tsis loj, cov yeeb nkab hlua tuaj yeem nqa tau thiab nqis kom xoob cov xuab zeb thiab txo qhov kev sib tsoo ntawm qhov drilling.

Rau kev kho cov xuab zeb hnyav hnyav Wells, ua ntej, lub load yog nce maj mam thaum lub load ncav cuag ib tug nqi, thiab lub load yog tam sim ntawd txo thiab sai unloaded. Qhov thib ob, tom qab lub sijhawm nce thiab nqis, cov hlua yeeb nkab yog nruj nreem kaw, kom cov yeeb nkab hlua tau raug tshem tawm rau lub sijhawm nyob rau hauv qhov kev ncab, kom qhov nro maj mam kis mus rau cov yeeb nkab qis. Ob daim ntawv tuaj yeem ua haujlwm, tab sis txhua txoj haujlwm yuav tsum tau nres rau 5 mus rau 10min rau ib lub sijhawm los tiv thaiv txoj hlua los ntawm kev qaug zog thiab tawg.

Cov xuab zeb daig kuj tuaj yeem kho tau los ntawm cov txheej txheem ntawm compression thim rov qab tso tawm, tso dej tso tawm, muaj zog nqa tawm, tso tawm jack, thim rov qab casing milling tso tawm, thiab lwm yam.

2.2.Kev kho cov khoom poob

Cov khoom poob qis txhais tau hais tias cov hniav pliers, cov hniav plam, lwm cov cuab yeej me me poob rau hauv qhov dej thiab tau daig, ua rau cov hlua khi.

Kev cuam tshuam nrog cov khoom ntog daig drilling, tsis txhob nqa lub zog hnyav, txhawm rau tiv thaiv daig, ua rau muaj teeb meem. Muaj ob txoj kev kho mob dav dav: Yog tias txoj hlua daig tuaj yeem tig tau, nws tuaj yeem maj mam nqa thiab maj mam tig. Cov khoom ntog yog crushed kom cov yeeb nkab hauv av tsis muaj zog; Yog tias cov txheej txheem saum toj no tsis muaj txiaj ntsig, siv phab ntsa nuv ntses tuaj yeem kho cov ntses saum toj kawg nkaus, thiab tom qab ntawd rov ua qhov poob.

2.3.Tshem tawm casing daig

Vim yog kev ntsuas ntau lawm lossis lwm yam laj thawj, lub casing yog deformed los yog puas, thiab cov cuab yeej downhole yog yuam kev qis dua qhov chaw puas, uas ua rau hauv qhov drilling. Thaum lub sij hawm ua, cov yeeb nkab kem saum toj kawg nkaus taw tes yuav tsum tau muab tshem tawm thiab lub daig tsuas yog tso tawm tom qab lub casing raug kho.