Laum dab tshos yog hnyav, tuab-walled tubular siv nyob rau hauv drilling sib dhos los muab qhov hnyav ntawm me ntsis rau drilling. Lawv tuaj nyob rau hauv ob qho tib si txheem steel thiabnon-magnetic laum dab tshostxawv.
① Kev tsim kho thiab tsim qhov sib txawv
Standard laum dab tshos yog tsim los ntawm high-strength alloy carbon steels zoo li AISI 4145H los yog AISI 4340H. Lawv muaj siab tensile thiab tawm los muaj zog los tiv thaiv drilling loads.
Non-magnetic laum dab tshosyog tsim los ntawm cov hlau tsis sib nqus xws li Monel thiab aluminium alloys. Monel dab tshos muab lub zog txav mus rau cov hlau thaum khaws cov tsis muaj hlau nplaum. Aluminium dab tshos tsis muaj zog tab sis pheej yig dua.
Ob hom dab tshos siv cov kev sib txuas siab zoo li API lossis kev sib txuas zoo tshaj plaws. Cov dab tshos uas tsis yog sib nqus feem ntau siv cov tsis sib nqus Monel alloy sib txuas los tiv thaiv kev cuam tshuam sib nqus.
Txhawm rau txo qhov hnyav, cov dab tshos uas tsis yog hlau nplaum tuaj yeem muaj cov qauv tsim bi-metallic nrog cov txheej txheej uas tsis yog hlau nplaum hlau metallurgically sib koom ua ke rau cov pa roj carbon hlau sab hauv. Qhov no muab lub zog xav tau ntawm qhov hnyav dua.
②Magnetic Properties thiab lawv qhov cuam tshuam
Standard steel laum dab tshos yog ferromagnetic vim lawv cov ntsiab lus hlau. Qhov no tuaj yeem cuam tshuam nrog cov cuab yeej ntsuas kev ntsuas sib nqus uas siv los tswj cov qhov dej.
Non-magnetic laum dab tshossiv cov alloys zoo li Monel thiab txhuas kom tsis txhob muaj cov teebmeem sib nqus lossis electromagnetic. Qhov no tiv thaiv kev cuam tshuam nrog kev sib nqus sib nqus thiab cov cuab yeej ntsuas.
Cov dab tshos uas tsis yog sib nqus ua kom muaj qhov tseeb ntawm kev nyeem ntawv, kev txhim kho cov kev taw qhia drilling thiab geosteering. Lawv yog cov khoom tseem ceeb hauv kev sib dhos drilling siv cov kev tshawb fawb sib nqus sib nqus los yog ntsuas kev ntsuas tsis tu ncua.
Cov dab tshos hlau tuaj yeem ua rau qhov tsis raug lossis tsis ua tiav cov kev tshawb fawb, ua rau muaj qhov tsis zoo ntawm qhov chaw. Non-magnetic dab tshos tswj kev soj ntsuam kev ntseeg tau.
③ Daim ntawv thov thiab tsim nyog
Standard steel laum dab tshos yog haum rau feem ntau ncaj ntsug zoo seem uas sib nqus cuam tshuam tsis muaj kev txhawj xeeb. Lawv muab kev lag luam hnyav hnyav laum yeeb nkab.
Cov dab tshos tsis sib nqus yog xav tau rau txhua qhov kev taw qhia, kab rov tav, thiab lub kaum sab xis drilling. Lawv yog qhov yuav tsum tau ua thaum drilling txoj hauv kev zoo thiab siv kev soj ntsuam sib nqus.
Rau cov kev taw qhia cov rooj sib txoos, cov khoom tsis sib nqus thiab lwm yam khoom siv kuj tseem siv los ntxiv cov dab tshos uas tsis yog hlau nplaum. Qhov no tsim ib tug tag nrho tsis-interfering drilling mechanism.
Nyob rau hauv cov qhov dej sib txawv heev, cov dab tshos uas tsis yog sib nqus tuaj yeem ua ke nrog cov av nkos zoo hloov chaw los muab lub zog ntxiv rau me ntsis thiab kev tswj kom zoo.
④ Kev Ntsuas Zoo
Lub ntsiab kom zoo dua ntawmnon-magnetic laum dab tshosyog enabling txhim khu kev qha kev soj ntsuam kev taw qhia thiab drilling tswj. Qhov no tso cai rau qhov chaw zoo ntawm qhov chaw kom ua tiav ntau lawm.
Lawv kuj txhim kho kev ntsuas kev taw qhia thiab ntsuas los ntawm cov cuab yeej txiav-thaum-drilling (LWD). Qhov no muab kev ntsuam xyuas zoo dua thiab cov ntaub ntawv geosteering.
Cov dab tshos uas tsis yog sib nqus muaj qhov qis zog thiab tawv dua li cov dab tshos hlau. Txawm li cas los xij, niaj hnub alloys zoo li Monel txo qhov no thaum khaws cov txiaj ntsig tsis sib nqus.
Ob leegnon-magnetic laum dab tshosthiab cov txheej txheem laum dab tshos muaj nyob rau hauv Vigor, lub chaw tsim khoom tshwj xeeb thiab cov khoom lag luam ntawm cov khoom lag luam zoo nrog cov lus nug uas nws kim heev, Yog tias koj xav tau cov kev daws teeb meem, thov hu rau peb ntawm info@vigorpetroleum.com.
