Raws li kev paub txog kev xa khoom ntawm cov roj & roj downhole thiab cov cuab yeej ua tiav, Vigor yuav saib xyuas cov ntsiab lus, qhov tshwj xeeb, qhov ntau thiab tsawg, qhov hnyav, thiab kev siv ntawmNon-Magnetic Drill Collars.
Non-Magnetic Drill Collar Txhais
Ib lub tsho tsis sib nqus yog ib qho tuab-walled laum hlua tivthaiv ua los ntawm cov hlau tsis sib nqus uas txo cov kev cuam tshuam sib nqus thaum lub sij hawm soj ntsuam hauv qab [1]. Cov pa roj carbon steel laum dab tshos tsim ib qho chaw sib nqus uas tuaj yeem cuam tshuam qhov kev ntsuas ntawm qhov ntsuas qhov ntsuas qhov zoo uas siv cov hlau nplaum thiab gyroscopes [2]. Los ntawm kev siv cov hlau tshwj xeeb xws li monel, inconel, thiab titanium, cov dab tshos uas tsis yog hlau nplaum tso cai rau kev tso chaw zoo.
Non-Magnetic Drill Collar Specifications
- Ntev: 30-90 ft
- Txoj kab uas hla: 5-10 ntiv tes
- Phab ntsa thickness: 2-4 ntiv tes tuab dua li laum yeeb nkab
- Cov khoom siv alloy: Monel, Inconel, titanium
- Nyhav: 120-150 lbf/ft rau kev ua haujlwm zoo drilling
- Kev sib txuas: Non-magnetic alloy welds lossis threads
Cov dab tshos tuaj yeem raug kho nrog qhov sib txawv thiab kev teeb tsa kom haum rau cov kev xav tau tshwj xeeb. Cov phab ntsa tuab muab qhov tseem ceeb rigidity thiab lub zog downhole.
Non-Magnetic Drill Collar Sizes
- 5-inch dab tshos - Feem ntau 30-60 ko taw ntev
- 6-inch dab tshos - Feem ntau 30-90 ko taw ntev
- 8-inch dab tshos - Feem ntau 30-90 ko taw ntev
- 9-inch dab tshos - Feem ntau 30-60 ko taw ntev
Ntau cov pob qij txha txuas ua ke kom ua tiav qhov zoo tagnrho tag nrho lub dab tsho ntev rau txoj hlua xyaum. Shorter, thicker dab tshos tuaj yeem siv rau hauv qhov nkhaus lossis kab rov tav [4]. Qhov loj me me yog nyob ntawm qhov zoo trajectory, torque thiab luag tsom xam, thiab hydraulic yuav tsum.
Non-Magnetic Drill Collar Weight
Qhov hnyav ntawmTsis-Magnetic Drill Collaryog ib qho tseem ceeb specification. Hnyav dab tshos muab rigidity thiab muab qhov hnyav ntawm lub laum me ntsis rau kev txhim kho drilling efficiency. Txheem carbon steel dab tshos feem ntau hnyav 300-600 lbs/ft. Tsis sib nqus dab tshos hnyav me ntsis vim yog cov khoom siv qis dua:
- Monel - 275-300 lbs/ft
- Inconel - 250-350 lbs/ft
- Titanium - 120-240 lbs/ft [5]
Lub caj dab hnyav tuaj yeem nce los ntawm kev muaj cov pob qij txha luv luv lossis cov phab ntsa tuab dua qhov xav tau. Tag nrho cov dab tshos hnyav yog ua tib zoo tsim kom haum rau lub laum me ntsis, av nkos lub cev muaj zog, thiab downhole tej yam kev mob.
Non-Magnetic Drill Collarstxuas ntxiv mus ua kom smoother, nrawm dua drilling ntawm txoj kev taug txoj hauv kev thiab kab rov tav. Lawv cov khoom tsis sib nqus txo kev cuam tshuam nrog cov cuab yeej tshawb fawb hauv qhov chaw kom pom qhov chaw zoo. Nkag siab txog lawv cov kev qhia tshwj xeeb thiab cov ntawv thov tso cai rau cov drillers kom ua tiav qhov kev ua haujlwm zoo tshaj plaws.
Cov ntaub ntawv
[1] Tsis-Magnetic Laum dab tshos txo kev cuam tshuam rau kev soj ntsuam kev taw qhia.
[2] Loizou, N. (2002). Kev txo qis ntawm kev cuam tshuam sib nqus ntawm cov kev taw qhia kev soj ntsuam los ntawm kev siv lub dab tshos uas tsis yog sib nqus. SPE 79971. doi: 10.2118/79971-MS
[3] Laum dab tshos. files/002-drill-collars.pdf
[4] Mitchell, RF (1999). Non-Magnetic Drill Collar Xaiv. IADC/SPE 59164. doi: 10.2118/59164-MS
[5] Tsis-Magnetic Laum dab tshos.
