Dab tsi yog Cov Haujlwm ntawm Petroleum Roj Drilling Qib CMC?

Petroleum roj drilling qib Carboxymethyl Cellulose (CMC) pab ntau yam tseem ceeb hauv cov txheej txheem roj drilling. Nov yog nws cov haujlwm tseem ceeb:

1. Viscosity Modifier:

CMC yog siv los ua viscosity modifier hauv cov dej drilling los tswj cov khoom rheological ntawm cov kua. Los ntawm kev kho qhov concentration ntawm CMC, qhov viscosity ntawm cov dej drilling tuaj yeem raug kho kom tau raws li cov kev cai tshwj xeeb ntawm kev ua haujlwm drilling. Kev tswj kom zoo viscosity yog qhov tseem ceeb rau kev tswj xyuas hydraulic stability, tiv thaiv kom tsis txhob muaj dej, thiab nqa cov laum txiav rau saum npoo.

2. Kev tswj dej tsis zoo:

CMC tsim lub ncuav mog qab zib nyias, impermeable lim rau ntawm phab ntsa borehole, uas pab tswj cov kua dej poob rau hauv kev tsim thaum lub sijhawm drilling. Cov ncuav mog qab zib lim no ua rau muaj kev cuam tshuam, txo qhov kev pheej hmoo ntawm qhov tsis zoo ntawm qhov tsis zoo, tsim kev puas tsuaj, thiab poob ncig. CMC zoo seals tawm permeable formations thiab puas, kom ntseeg tau zoo drilling hauj lwm.

3. Suspension thiab Shale Inhibition:

CMC pab tshem tawm thiab nqa cov laum txiav thiab lwm yam khoom siv rau saum npoo, tiv thaiv lawv qhov chaw thiab sib sau ua ke hauv qab ntawm qhov borehole. Nws kuj inhibits lub hydration thiab dispersion ntawm shale formations, txo cov kev pheej hmoo ntawm daig yeeb nkab, wellbore instability, thiab tsim puas. CMC txhim kho tag nrho cov kev ua tau zoo thiab kev nyab xeeb ntawm kev ua haujlwm drilling los ntawm kev tswj xyuas qhov zoo ntawm kev ncaj ncees thiab txo qis qis qis.

4. Lubrication thiab Friction Reduction:

CMC ua cov roj nplua nyeem hauv cov kua dej drilling, txo kev sib txhuam ntawm cov hlua tho thiab cov phab ntsa borehole. Qhov no txo ​​cov torque thiab luag ntawm txoj hlua xyaum, txhim kho kev ua haujlwm ntawm drilling thiab txo qhov hnav thiab tsim kua muag ntawm cov khoom siv drilling. CMC kuj tseem txhim khu kev ua haujlwm ntawm downhole motors thiab rotary drilling cuab yeej los ntawm kev txo cov kev sib txhuam thiab kev tsim hluav taws xob.

5. Temperature thiab Salinity Stability:

CMC nthuav tawm qhov zoo tshaj plaws kub thiab salinity stability, ua rau nws haum rau siv nyob rau hauv ib tug ntau yam ntawm drilling ib puag ncig, nrog rau high-kub thiab high-salinity tej yam kev mob. Nws tuav nws cov khoom rheological thiab cov kua dej tsis muaj peev xwm tswj tau txawm tias nyob rau hauv qhov chaw qis qis, ua kom muaj kev ua tau zoo thiab kev ntseeg siab hauv kev ua haujlwm nyuaj.

6. Ib puag ncig phooj ywg:

CMC yog ib puag ncig tus phooj ywg thiab biodegradable, ua rau nws haum rau siv nyob rau hauv ib puag ncig rhiab heev drilling cheeb tsam. Nws tsis muaj cov additives tsim kev puas tsuaj los yog tshuaj lom, txo qhov cuam tshuam rau ib puag ncig ib puag ncig thiab cov dej hauv av. CMC-raws li drilling kua ua raws li ib puag ncig cov kev cai thiab cov qauv, kom ntseeg tau cov kev xyaum drilling kom ruaj khov.

Hauv cov ntsiab lus, cov roj av roj drilling qib Carboxymethyl Cellulose (CMC) ua haujlwm ntau yam tseem ceeb hauv cov dej drilling, suav nrog kev hloov kho viscosity, kev tswj tsis tau dej, ncua kev ncua thiab shale inhibition, lubrication thiab kev sib txhuam txo, kub thiab salinity stability, thiab ib puag ncig phooj ywg. Nws cov khoom siv ntau yam pab txhawb rau kev ua tau zoo, kev nyab xeeb, thiab kev ruaj ntseg ntawm cov roj thiab roj drilling kev lag luam thoob ntiaj teb.