Drilling Stabilizer Downhole Khoom siv ntawm BHA
Lub cuab yeej tswj qhov drilling yog ib yam khoom siv uas siv rau hauv qhov bottom hole assembly (BHA) ntawm txoj hlua drilling. Nws ua kom BHA nyob hauv qhov bore ruaj khov kom tsis txhob muaj kev cuam tshuam, kev co, thiab xyuas kom meej tias qhov drilling zoo.
Nws yog tsim los ntawm lub cev cylindrical hollow thiab cov hniav ruaj khov, ob qho tib si ua los ntawm cov hlau muaj zog heev. Cov hniav tuaj yeem ncaj lossis kauv, thiab yog tawv rau kev tiv thaiv kev hnav.
Niaj hnub no muaj ntau hom kev ruaj khov rau kev khawb av siv hauv thaj chaw roj. Txawm hais tias cov kev ruaj khov ib txwm muaj (ua los ntawm ib daim hlau) feem ntau yog qhov ib txwm muaj, lwm hom tuaj yeem siv tau, xws li:
Lub tes tsho ruaj khov uas hloov tau, qhov twg cov hniav nyob rau ntawm lub tes tsho, uas tom qab ntawd raug ntsia hlau rau ntawm lub cev. Hom no tuaj yeem pheej yig thaum tsis muaj chaw kho nyob ze ntawm qhov dej uas tau khawb thiab yuav tsum tau siv kev thauj khoom los ntawm huab cua.
Cov cuab yeej ruaj khov rau cov hniav sib txuas, qhov twg cov hniav raug vuam rau ntawm lub cev. Hom no feem ntau tsis pom zoo rau cov qhov dej roj vim muaj kev pheej hmoo ntawm kev poob hniav, tab sis feem ntau siv thaum khawb cov qhov dej lossis ntawm cov chaw roj pheej yig.
Feem ntau muaj 2 txog 3 lub stabilizers uas tau teeb tsa rau hauv BHA, suav nrog ib qho nyob saum lub qhov laum (qhov ze ntawm lub qhov laum) thiab ib lossis ob lub ntawm cov qhov laum (cov hlua stabilizers).
| Qhov Loj (hauv) | Tus Qauv DC Loj (hauv) | Phab ntsa Tiv tauj (hauv) | Hniav Dav (hauv) | Kev nuv ntses Caj dab Ntev (hauv) | Hniav Tub ntxhais kawm qis dua (hauv) | Tag Nrho Ntev (hauv) | Kwv yees li Qhov hnyav (kgs) | |
| Txoj hlua | Near-bit | |||||||
| 6" - 6 3/4" | 4 1/2" - 4 3/4" | 16" | 2 3/16" | 28" | -1/32" | 74" | 70" | 160 |
| 7 5/8" - 8 1/2" | 6 1/2" | 16" | 2 3/8" | 28" | -1/32" | 75" | 70" | 340 |
| 9 5/8" - 12 1/4" | 8" | 18" | 3 1/2" | 30" | -1/32" | 83" | 78" | 750 |
| 14 3/4" - 17 1/2" | 9 1/2" | 18" | 4" | 30" | -1/16" | 92" | 87" | 1000 |
| 20" - 26" | 9 1/2" | 18" | 4" | 30" | -1/16" | 100" | 95" | 1800 xyoo |






