Kev tiv thaiv thiab kev kho mob ntawm kev sib tsoo qhov sib tsoo

Vim qhov kev ua haujlwm tsis zoo ntawm cov dej drilling, ntau qhov pom yuav ua rau cov tsim thiab xoob. Los yog cov shale soaked nyob rau hauv lub qhov dej seem nrog loj heev lub kaum sab xis expands, spalling rau hauv lub qhov dej thiab ua rau daig drilling.

Cov cim qhia ntawm phab ntsa qhov dej tawg:

1.Nws tawg thaum lub sij hawm drilling

2.Lub qhov dej tawg thaum lub sij hawm drilling

3.Lub qhov dej tawg thaum drilling

4.Reaming txawv

Kev tiv thaiv phab ntsa tawg:

1. Siv cov dej los tiv thaiv kev sib tsoo los yog cov dej drilling uas phim qhov tsim, tsim nyog txhim kho qhov ntom thiab viscosity ntawm cov dej drilling, nruj me ntsis tswj dej poob, thiab txhim kho pob zeb nqa peev xwm.

2. Drilling nyob rau hauv collapsible cheeb tsam, ua ntej nkag mus rau hauv lub Shahejie tsim, lub drilling kua yuav tsum tau supplemented nrog txaus los tiv thaiv cov ntaub ntawv raws li tus tsim yuav tsum tau, thiab cov ntsiab lus yuav tsum ncav cuag li 3%.

3. Kev ua haujlwm ntawm cov dej drilling yuav tsum ruaj khov thiab tsis tuaj yeem kho tau zoo.

4. Thaum lub sij hawm drilling, lub twj tso kua mis siab nce, qhov hnyav poob qis, cov cuab yeej drilling yog daig, thiab lub taub hau rov qab los yog txo qis los yog lub rooj sib hloov ib zaug yog unloaded. Thaum cov yeeb nkab laum yog thim rov qab tiag tiag, cov yeeb nkab drilling yuav tsum tau nres lossis txuas, cov cuab yeej drilling yuav tsum tau nqa mus rau qhov zoo li qub, thiab siv txoj kev ntws los ntawm kev siv.

5. Drilling nyob rau hauv cov pa txheej, ntau drilling kua nyob rau hauv tsawg tawm, nres drilling voj voog soj ntsuam, to ntau tshaj 5 m³ / h, los yog tsuas yog nyob rau hauv thiab tawm, yuav tsum tam sim ntawd npaj drilling, annular nruam txhaj tshuaj ntawm drilling kua, yuav tsum tsis txhob qhib. lub twj tso kua mis nyob nruab nrab. Thaum cov dej drilling tsis txaus, nws tuaj yeem ntim dej los sim rub tawm cov cuab yeej drilling.

6. Tsis txhob muab cov ntsiab lus ruaj khov, feem ntau hloov txoj haujlwm me ntsis, thiab sim ua kom tsis txhob muaj qhov dej ntws uas yooj yim kom tawg thiab tawg.

7. Drilling yuav tsum tsis tu ncua nrog cov dej drilling kom tswj lub siab ntawm cov kua kem. Thaum lub drilling yog daig, nws tsis yog ib qho nyuaj rau rub tawm. Tom qab cov cuab yeej drilling tau qis dua mus rau qhov chaw du thiab lub twj tso kua mis qhib ib txwm nrog kev txav me me, cov kev ncig tau maj mam nce.

8. Pib drilling ntawm qis ceev tsis rub tawm lub piston.

9. Tswj lub drilling ceev, tsis muaj kev nyuaj siab nyob rau hauv cov ntaub ntawv ntawm tsis kam, nqa lub drilling cuab yeej mus rau lub du zoo seem, thiab siv ib tug punch. Ob mus rau peb kab txoj kev.

Kev kho ntawm ncej phab ntsa tawg:

Tom qab kev sib tsoo ntawm kev xyaum, tej zaum yuav muaj ob qhov xwm txheej, ib qho yog qhov kev ncig tuaj yeem me me, thiab lwm qhov yog qhov kev ncig tsis tuaj yeem tsim txhua yam.

1. Yog tias koj tuaj yeem ua voj voog nrog me me, koj yuav tsum tsis txhob poob qhov kev cia siab no, tab sis koj yuav tsum tswj hwm qhov sib npaug ntawm cov ntshuam thiab xa tawm ntws. Tom qab lub voj voog ruaj khov, maj mam nce cov viscosity thiab shear ntawm cov dej drilling kom nws cov xuab zeb nqa peev xwm, thiab maj mam nce tus nqi ntws los sim coj cov pob zeb tawg mus rau saum npoo. Tom qab cov kauj ruam no ua tiav, txawm tias cov nplaum nplaum nplaum nplaum tshwm sim, nws kuj raug cuam tshuam nrog.

2. Yog hais tias lub qhov daig yog tsim los ntawm lub cev qhuav dej ntawm limestone thiab dolomite, thiab lub cev qhuav dej seem tsis ntev dhau lawm, koj tuaj yeem xav txog cov twj tso kua mis inhibitory hydrochloric acid kom tso cov daig.

3. Cov kauj ruam tom ntej yog milling rov qab. Hauv kev tsim cov mos mos, nws raug nquahu kom siv lub tes tsho ntev milling, lossis siv lub tes tsho ntev milling nrog txiv neej lub khob hliav qab lossis hmuv nuv ntses, kom lub milling thiab thim rov qab tuaj yeem ua tiav ntawm ib zaug kom ua tiav qhov kev ua tiav. Nyob rau hauv ib qho nyuaj tsim, nws yog advisable kom txo tau qhov ntev ntawm casing tube thiab txo qhov yuam kev nyob rau hauv lub milling txheej txheem. Thaum milling mus rau lub hauv paus, nws raug nquahu kom ntim lub hub kom tso tawm qhov daig, vim tias muaj ntau qhov tseeb tau ua pov thawj tias muaj cov xuab zeb me me hauv qab lub hauv paus, thiab nws tsis tas yuav zeb lub stabilizer.