Yam dab tsi cuam tshuam rau kev ua haujlwm ntawm me ntsis teb drilling rigs

Lub drilling kev ua haujlwm ntawm ib qho kev sib dhos me Qhov cuam tshuam uas cuam tshuam rau kev ua haujlwm drilling rigring rigs suav qhov tob, xaiv cov khoom siv drunting, thiab tho pas nrig hom.

Tus Cuam Tshuam Ntawm Qhov Qhov tob Ntawm Qhov Drilling Efficiency Ntawm Teb Drilling Rig

Thaum lub sij hawm tsim kho kom qeeb li teb drilling rig, txhua lub sij hawm lub laum me ntsis yog ntim nrog av, nws yog qhov yuav tsum tau nqa cov av, thiab tom qab ntawd txo cov cuab yeej drilling mus rau hauv qab ntawm lub qhov. Pom tseeb, lub qhov tob me me, cov ua tau zoo. Drilling Efficiency v=h1 / (t} h)} h)} h)} h)} T2 yog lub sijhawm tsis muaj sijhawm, h; H yog qhov tob ntawm lub qhov, m; v, kom nce thiab txo qis ncu nrawm, m / h. Los ntawm cov kab zauv saum toj saud, nws tuaj yeem pom tau tias thaum muaj lwm yam me dua, lub qhov tob me dua 100m, lub qhov drilling assently txo. Thaum lub qhov tob tob tau ntau dua 120m, lub drilling efficiency yuav qis dua li ntawm lwm txoj kev tsim kho, thiab kev sib tsoo yuav nce nce ntxiv. Yog li ntawd, nws raug nquahu kom siv lwm txoj kev tsim kho xws li tom ntej thiab rov qab ncig kom ntau li ntau tau thaum ua cov khoom siv ultra sib sib zog tsim.

2. Tus cawv ntawm aperture ntawm lub drilling efficiency ntawm cov teb excavators

Tam sim no, feem ntau siv cov rig rig rig yog lub thoob npau taws thoob, uas muaj lub cev tso zis nkag rau hauv lub qhov rooj. Thaum drilling, cov khib nyiab drilling yog txiav los ntawm cov hniav laum thiab nkag mus rau lub thoob los ntawm lub qhov rooj thoob. Nyob rau hauv lub thawb ntawm qis drilling khib nyiab, cov khib nyiab sab saud maj mam nce mus rau hauv lub thoob kom txog thaum nws tau sau. Muaj ob qho tseem ceeb uas cuam tshuam rau drilling efficiency, ib qho yog qhov kev ceev ntawm cov khib nyiab ntawm cov khib nyiab ntawm cov khib nyiab nce sab hauv lub thoob. Firstly, qhov ceev ntawm cov av nkag rau hauv lub qhov rooj thoob muaj feem cuam tshuam nrog thaj av ntawm cov av nkag mus rau hauv lub qhov rooj nkag. Qhov loj dua lub taub drilling, qhov loj dua thaj tsam ntawm cov av nkag mus rau hauv lub qhov rooj thoob, thiab ua kom nrawm dua cov av nkag mus ceev;

Thib ob, qhov nce nrawm ntawm cov khib nyiab hauv lub cev thoob yog cuam tshuam nrog ntau yam, feem ntau yog suav nrog:

(1) Qhov hnyav ntawm cov av khib nyiab av;

(2) Tus nplaum ntawm lub zog ntawm lub thoob thiab cov khib nyiab av.

Pom tseeb, qhov loj dua txoj kab uas hla ntawm lub rwj, cov av hnyav dua ntawm phab ntsa thiab av yuav txo qis; Thaum txoj kab uas hla ntawm cov laum me me txo qis, qhov hnyav ntawm cov khib nyiab txo, tab sis cov nplaum muaj zog ntawm cov thoob dej thiab cov khib nyiab nce.

Yog lawm, tseem muaj lwm yam kev sib txhuam ntawm cov kav dej laum, thiab cov av noo cov ntsiab lus ntawm cov av slag hauv lub cev. Raws li qhov xwm txheej saum toj no, qhov cuam tshuam ntawm drilling raws cov qauv uas txo tau thaum khiav tawm yog tsawg dua 1m thiab ntau dua 2m.

Qhov kev cuam tshuam ntawm cov geological cov qauv ntawm kev drilling ua haujlwm yog feem ntau yog ua kom muaj kev nyuaj ntawm kev ua haujlwm (laum ntawm geological unloading.

3.1 Davabilable Ntawm Strata

The drillability of geological formations is a complex indicator. Geological drilling experts at home and abroad classify formations according to the difficulty of drilling. China follows the grading method of the former Soviet Union and divides formations into 12 levels, with higher levels indicating poorer drillability. Due to the lack of classification of drillability in the construction of large-diameter cast-in-place pile holes, there is no unified standard and specification for drilling techniques corresponding to different formations. The mechanism of rock fragmentation and powder carrying during pile hole construction with rotary drilling rig is different from geological drilling. Rotary drilling rig mainly divides the drilled layer into large rock fragments by cutting and then installs them into the drill bit body, while geological drilling mainly grinds the formation into small particles by flushing and carries them to the ground through flushing fluid. So the drillability index of the construction stratum by rotary drilling rig is mainly the compressive strength of the stratum. As long as the drilling pressure applied by the drilling rig is greater than the compressive strength of the stratum, the drill teeth can press the stratum and cut it into blocks. The pressure acting on the drill teeth must be greater than the compressive strength of the stratum, that is, F/S>G, qhov twg f - siab; S - thaj chaw hauv qab ntawm cov kab laum txoj kev sib cuag; G - compressive lub zog ntawm kev tsim.

Yog hais tias cov xwm txheej saum toj no tau ntsib thiab lwm yam kev ua haujlwm tau zoo, lub nra hnyav yuav tau txhim kho kev sib hloov ceev thiab drilling hniav nrawm thiab drilling. Raws li tuaj yeem pom los ntawm cov lus saum toj no, qhov nyuaj rau kev tsim, txo qis lub zog ua kom tiav, thiab lub sijhawm rau kev tsim kom tawg thaum lub siab tas mus li.

3.2 kev cuam tshuam ntawm av unloading yam ntawm drilling efficiency

Vim muaj qhov sib txawv ntawm cov muaj pes tsawg leeg, cov qauv, thiab cov ntsiab lus noo ntawm cov khib nyiab drument, lub viscosity ntawm cov khib nyiab drilling. Thaum cov khib nyiab drilling tau thauj khoom rau hauv lub thoob thiab tshem tawm hauv av rau kev tiv thaiv, ntau dua nws lub sijhawm ntev dua yuav tsum tau siv tsis tau.

4. Tus cawv ntawm kev xaiv drilling ntawm drilling efficiency

Muaj ntau ntau hom kev siv laum siv siv hauv cov qauv me me, nrog ntau cov qauv. Kev xaiv lub qhov sib txawv yuav tsum raug xaiv rau cov qauv sib txawv, txoj kev tsim qauv, thiab cov qauv geological. Tam sim no, muaj rau cov siv ntau yam siv ntawm cov laum xyaum ua kom lub laum, kev cuam tshuam laum laum, thiab cov kev cuam tshuam lub khob cookie laum, txhua yam uas muaj ntau ntau yam. Cov kev xaiv ntawm cov cuab yeej drilling tau muaj kev cuam tshuam tseem ceeb ntawm kev ua haujlwm qeeb li qub, thiab cov khoom laum laum yuav tsum tau raug xaiv los ua kom tiav qhov ntsuas kom nruj. Teb Drooring Rigs tuaj yeem nruab nrog cov sib txawv tho kev raws li cov kab ke ntev, thiab cov kav ntev ntev tuaj yeem siv rau hauv av cohesive av kom nrawm dua drilling ceev; Rau cov kev tsim cov ntsiab lus nrog cov ntsiab lus siab ntawm cov xuab zeb thiab gravel, luv Laum tuaj yeem siv nrog cov av tiv thaiv; Rau cov formations muaj pob zeb cais, cov pob zeb pob zeb, thiab cov pob zeb nyuaj, ntev thiab luv Kauv Laum cov khoom tuaj yeem siv rau kev kho. Tom qab loosening, lub laum chim chim tuaj yeem hloov mus rau kev khiav mus ntxiv. Piv nrog cov pa drilling rigs, rotary drilling rigs muaj lub zog loj thiab tuaj yeem hloov kho raws li cov kev mob geological.

5. Tus cuam tshuam ntawm laum yeeb tshuaj xaiv ntawm drilling efficiency

Cov feem ntau siv tho cov pas nrig rau cov rigring rigs tau muab faib ua ob pawg: kev sib txhuam thiab tshuab xauv hom. Qhov kev sib txhuam ntau hom laum qeej tsuas yog cia siab rau ntawm kev sib txhuam ntawm lub laum pas nrig qoj kom tsim cov tshuab raj. Cov yam ntxwv ntawm hom drilling rig yog: nce siab thaum khiav tawm, tsis tas yuav tsum tau rub lub siab, tab sis kev ua haujlwm siab, thiab muaj txiaj ntsig zoo, thiab muaj txiaj ntsig zoo hauv qhov chaw nyob hauv softer; Tshuab xauv cov yeeb nkab laum yog ib hom ntawm cov khoom siv laum uas siv cov txheej txheem hnyav ntawm txhua lub zog los ntawm lub zog drilling rau hauv qab ntawm lub qhov los ua daim ntawv drilling siab. Tus yam ntxwv ntawm hom laum no yog tias nws tsuas tuaj yeem tsim cov kev siab drilling siab thaum cov ntsiab lus siab ntawm txhua txheej txuas rau thaum lub sijhawm khiav haujlwm. Thaum nqa cov kav dej laum, nws yuav tsum tau xauv ua ntej, thiab kev nqa khoom thiab txo qis qis yog qeeb, uas haum rau cov qauv nyuaj.