Raws li peb txhua tus paub, kev xaiv cov khoom tseem ceeb ntawm lub tshuab nqus dej rotary ncaj qha txiav txim siab nws lub neej kev pabcuam. Rau qhov no, Sinovo, lub chaw tsim khoom siv nqus dej rotary, yuav qhia txog yuav ua li cas xaiv cov thoob tho qhov.
1. Xaiv cov thoob tho qhov raws li cov xwm txheej geological
Lub luag haujlwm tseem ceeb ntawmlub tshuab drilling rotaryyog los tsim ib lub qhov groove rau ntawm qhov chaw, thiab cov khoom ua haujlwm yog pob zeb. Vim yog qhov tob me me ntawm lub qhov pile tsim, lub pob zeb tau dhau los ua qhov kev hloov pauv nyuaj hauv cov qauv, qhov loj me ntawm cov khoom me me, porosity, cementation, tshwm sim thiab compressive zog los ntawm tectonic txav thiab ntuj mechanical thiab tshuaj lom neeg ua haujlwm, yog li cov khoom ua haujlwm ntawm lub rotary drilling rig yog qhov nyuaj heev.
Hauv kev xaus lus, muaj cov pawg hauv qab no.
Raws li lithology, nws muab faib ua shale, sandstone, limestone, granite, thiab lwm yam.
Raws li keeb kwm, nws muaj peev xwm muab faib ua pob zeb magmatic, pob zeb sedimentary thiab pob zeb metamorphic;
Raws li cov khoom siv kho tshuab, nws muab faib ua cov khoom ruaj khov, yas thiab xoob. Yog li yuav ua li cas xaiv cov laum raws li cov xwm txheej tsim? Cov hauv qab no yog kev qhia tshwj xeeb:
(1) Av nplaum: xaiv lub thoob tho qhov nrog ib txheej hauv qab. Yog tias txoj kab uas hla me me, ob lub thoob lossis lub thoob tho qhov nrog lub phaj tsis siv neeg tuaj yeem siv tau.
(2) Av nplaum, cov av tsis sib xyaw ua ke, cov av xuab zeb thiab cov pob zeb uas tsis sib haum thiab cov khoom me me tuaj yeem nruab nrog ob lub thoob hauv qab.
(3) Cov mastic tawv: lub thoob khawb av uas muaj ib qho av nkag (ib qho thiab ob lub hauv qab) lossis cov ntsia hlau ncaj nrog cov hniav thoob yuav tsum tau xaiv.
(4) Txheej Permafrost: lub thoob auger ncaj thiab lub thoob rotary drilling siv tau rau cov uas muaj dej khov tsawg dua, thiab lub auger conical auger bit siv tau rau cov uas muaj dej khov ntau. Yuav tsum nco ntsoov tias lub auger bit siv tau rau txheej av (tshwj tsis yog sludge), tab sis yuav tsum siv thaum tsis muaj dej hauv av kom tsis txhob muaj kev sib tsoo los ntawm kev nqus.
(5) Cov pob zeb cemented thiab cov xuab zeb thiab cov pob zeb uas tau hloov pauv zoo: cov khoom siv conical spiral thiab ob lub thoob hauv qab rotary drilling yuav tsum tau nruab (ib qho chaw nres nkoj rau cov khoom loj thiab ob chav chaw nres nkoj rau cov khoom me me)
(6) Stroke bedrock: nruab nrog pick barrel coring bit - conical spiral bit - rotary drilling bucket nrog ob lub hauv qab, lossis pick ncaj spiral bit - rotary drilling bucket nrog ob lub hauv qab.
(7) Lub hauv paus pob zeb uas puas me ntsis: nruab nrog lub qhov coring cone barrel - lub qhov conical spiral - lub thoob drilling rotary ob lub hauv qab. Yog tias lub cheeb loj dhau, cov txheej txheem drilling graded yuav tsum tau siv.
Lub sijhawm tshaj tawm: Cuaj hlis-26-2021