Raws li peb txhua tus paub, kev xaiv ntawm qhov tseem ceeb ntawm lub tshuab drilling rig ncaj qha txiav txim siab nws lub neej kev pabcuam. Rau qhov no, Sinovo, lub chaw tsim khoom lag luam rotary drilling rig, yuav qhia yuav ua li cas xaiv cov thoob tho.
1. Xaiv cov thoob tho raws li qhov xwm txheej geological
Lub luag haujlwm tseem ceeb ntawm lubrotary drilling rigyog tsim ib lub qhov zawj ntawm qhov chaw, thiab cov khoom ua haujlwm yog pob zeb. Vim lub qhov tob me me ntawm pawg tsim, lub pob zeb tau dhau los ua cov kev hloov pauv hauv cov qauv, qhov loj me, qhov porosity, cementation, tshwm sim thiab compressive zog los ntawm tectonic txav thiab ntuj txhua yam thiab tshuaj ua haujlwm, yog li cov khoom ua haujlwm ntawm lub tshuab drilling rig. tshwj xeeb yog complex.
Txhawm rau ua kom tiav, muaj cov pawg hauv qab no.
Raws li lithology, nws tau muab faib ua shale, sandstone, limestone, granite, thiab lwm yam.
Raws li keeb kwm, nws tuaj yeem muab faib ua pob zeb magmatic, pob zeb sedimentary thiab metamorphic pob zeb;
Raws li cov khoom siv kho tshuab, nws tau muab faib ua ruaj, yas thiab xoob. Yog li yuav ua li cas xaiv cov laum me ntsis raws li cov txheej txheem tsim? Hauv qab no yog ib qho kev taw qhia cais:
(1) Av nplaum: rotary drilling thoob nrog ib txheej hauv qab yog xaiv. Yog tias txoj kab uas hla me me, ob lub thoob los yog lub thoob drilling tuaj yeem siv tau.
(2) Av nkos, tsis muaj zog cohesive av txheej, xuab zeb av thiab pebble txheej uas tsis zoo cementation thiab me me particle loj tuaj yeem nruab nrog ob lub hauv qab drilling thoob.
(3) Hard mastic: rotary drilling thoob nrog ib qho av inlet (ib leeg thiab ob sab hauv qab) los yog ncaj ntsia hlau nrog thoob cov hniav yuav tsum raug xaiv.
(4) Permafrost txheej: ncaj auger thoob thiab rotary drilling thoob yuav siv tau rau cov uas muaj dej khov tsawg, thiab conical auger me ntsis yuav siv tau rau cov uas muaj dej khov loj. Nws yuav tsum tau muab sau tseg tias auger me ntsis zoo rau cov av txheej (tshwj tsis yog sludge), tab sis nws yuav tsum tau siv nyob rau hauv qhov tsis muaj dej hauv av kom tsis txhob jamming los ntawm suction.
(5) Cemented pebbles thiab gravels thiab muaj zog weathered pob zeb: conical kauv me ntsis thiab ob chav hauv qab teb rotary drilling thoob yuav tsum tau nruab (ib qho chaw nres nkoj rau loj particle loj thiab ob qhov chaw nres nkoj rau me me particle loj)
(6) Stroke bedrock: nruab nrog lub thoob coring ntsis - conical kauv ntsis - rotary drilling thoob nrog ob hauv qab, los yog xaiv ncaj kauv ntsis - teb drilling thoob nrog ob sab hauv qab.
(7) me ntsis weathered bedrock: nruab nrog lub khob hliav qab coring ntsis - conical kauv ntsis - ob npaug rau hauv qab teb drilling thoob. Yog tias txoj kab uas hla loj dhau, cov txheej txheem drilling yuav tsum tau txais.
Post lub sij hawm: Sep-26-2021