CMC siv hauv Petroleum thiab Oil Drilling Industry

Sodium carboxymethyl cellulose (CMC) yog tsim los ntawm ntuj cellulose los ntawm kev hloov tshuaj ntawm cov dej-soluble cellulose ethers derivatives, yog ib yam ntawm cov dej-soluble cellulose ether tseem ceeb, dawb los yog yellowish hmoov los yog granular, non-toxic, tasteless, nws yuav yaj. nyob rau hauv dej, muaj zoo kub stability thiab ntsev kuj, muaj zog antimicrobial zog. Cov kua slurry npaj los ntawm cov khoom no muaj cov dej tsis zoo, inhibition thiab kub tsis kam. Dav siv nyob rau hauv kev lag luam roj drilling, tshwj xeeb tshaj yog dej ntsev Wells thiab offshore roj drilling.

Sodium carboxymethyl cellulose CMC ua cov dej-soluble polymer, tuaj yeem yaj sai sai hauv dej txias lossis dej kub; Raws li thickening tus neeg saib xyuas, rheological tswj tus neeg saib xyuas, nplaum, stabilizer, tiv thaiv colloid, ncua kev kawm tus neeg saib xyuas thiab dej tuav tus neeg saib xyuas, nws yog ib tug zoo drilling av nkos tus neeg saib xyuas thiab kev npaj cov khoom ua tiav cov kua hauv cov roj drilling lag luam. Nws muaj siab pulping tus nqi thiab zoo ntsev tsis kam. CMC yog cov kua dej zoo heev txo tus neeg sawv cev rau cov av nkos dej tshiab thiab cov dej hiav txwv dej saturated ntsev av, thiab muaj cov viscosity lifting muaj peev xwm thiab kub tsis kam (150℃). Haum rau kev npaj cov dej tshiab, seawater thiab saturated brine tiav cov kua, thiab calcium chloride hnyav tuaj yeem tsim tau rau ntau qhov ntom ntom ntawm cov kua tiav tiav, thiab cov kua tiav tiav viscosity thiab cov kua dej tsawg.

Taw qhia ntawmCMC HV thiabCMC LV rau roj av drilling kua

(1) Cov av nkos ntawm CMC tuaj yeem ua rau cov phab ntsa zoo ua kom nyias thiab ruaj khov ncuav mog qab zib nrog cov permeability tsawg, thiaj li txo cov dej poob.

(2)Tom qab ntxiv CMC rau av nkos, lub laum tuaj yeem tau txais qis qis qis qis qis, kom cov av nkos yooj yim tso cov roj ntim rau hauv nws, thiab cov khib nyiab pov tseg sai sai hauv av nkos.

(3) Drilling av nkos thiab lwm cov qauv raug tshem tawm dispersion muaj qee lub neej, uas tuaj yeem ruaj khov thiab txuas ntxiv los ntawm kev ntxiv CMC.

(4) Cov av nkos uas muaj CMC tsis tshua muaj kev cuam tshuam los ntawm cov pwm thiab yog li tsis tas yuav tsum tswj hwm PH siab lossis siv cov tshuaj tua kab mob.

(5) Muaj CMC raws li qhov drilling av nkos ntxuav cov kua dej, tuaj yeem tiv taus cov pa phem ntawm ntau cov ntsev soluble.

Cov av nkos uas muaj CMC muaj kev ruaj ntseg zoo thiab tuaj yeem txo cov dej poob txawm tias qhov kub siab tshaj 150°C.

Lus Cim: CMC nrog cov viscosity siab thiab qib siab ntawm kev hloov pauv yog tsim rau cov av nkos uas tsis muaj qhov ntom ntom, thaum CMC nrog cov viscosity tsawg thiab cov qib siab hloov pauv yog tsim rau cov av nkos uas muaj qhov ntom ntom. CMC yuav tsum raug xaiv raws li cov xwm txheej sib txawv xws li hom av nkos, cheeb tsam thiab qhov tob tob.

Kev siv tseem ceeb: CMC hauv cov kua dej drilling, cementing kua thiab fracturing kua, nqa viscosity thiab lwm yam dej num, thiaj li ua tiav. Txhawm rau tiv thaiv cov phab ntsa, nqa cov drilling cuttings, tiv thaiv me ntsis, tiv thaiv av nkos, txhim kho lub luag haujlwm ntawm drilling ceev. Ntxiv ncaj qha los yog nrog cov kua nplaum ntxiv rau cov av nkos, ntxiv 0.1-0.3% hauv cov av nkos dej tshiab, ntxiv 0.5-0.8% hauv av nkos ntsev.

Khoom nta:

1. Cov khoom yog linear dej-soluble polymer uas tswj tus nqi qis N thiab tuaj yeem hloov kho tau zoo thaum ntxiv rau cov dej drilling.

Tus qauv ntws. Nws muaj qhov zoo ntawm suppressing shale dispersion, tiv thaiv inorganic ion muaj kuab paug, txo cov dej poob, nce drilling tus nqi thiab txo nqi.

2. Raws li tus qauv ntws regulator rau cov kua dej drilling, cov khoom muaj xyoo sib txawv, pom kev txo qis kev ua haujlwm thiab ntws deformation hloov kho muaj nuj nqi thiab zoo dua.

Nws tuaj yeem siv los ua viscosity nce thiab pom cov neeg sawv cev hauv cov dej tshiab thiab ntsev slurry.

1. Nws muaj kev ua qias tuaj zoo thiab kub tsis kam.

Kev thov ntawm sodium carboxymethyl cellulose CMC hauv kev lag luam roj drilling

1. Daim ntawv thov ntawm sodium carboxymethyl cellulose CMC hauv cov dej drilling

Cov kua dej uas tsis yog-dispersible drilling nruab nrog CMC muaj qhov muaj zog txiav cov peev txheej, inhibits av nplaum dispersion, txo cov av nplaum pulping ceev, muaj txiaj ntsig zoo rau kev ruaj ntseg zoo thiab ua kom zoo dua qhov drilling.

Dispersed drilling kua nrog CMC muaj lub peev xwm ncua kev kawm zoo, tuaj yeem ua kom haum rau theem khoom ntau, tuaj yeem txhim kho qhov ruaj khov, yog qhov tsim nyog tshaj plaws rau cov kua dej drilling, thiab tuaj yeem kho cov khoom zoo ntawm cov dej drilling; Cov ncuav mog qab zib zoo thiab cov av nkos tuaj yeem tsim hauv cov kua dej drilling, uas muaj kev pom zoo txo ​​qis thiab txo cov dej dawb.

Calcium kho cov dej drilling nrog CMC muaj cov calcium zoo thiab tuaj yeem tiv thaiv ntau dhau ntawm cov av nplaum hauv cov kab ke uas tshwm sim los ntawm calcium ions, kom cov kua dej drilling tuaj yeem tswj xyuas lub xeev zoo flocculation thiab khaws cov ntsiab lus ruaj khov thiab cov khoom ntawm cov dej drilling, thiaj li ua kom muaj kev ua tau zoo thiab ruaj khov ntawm cov dej drilling.

Nrog CMC configuration ntawm brine, dej hiav txwv dej drilling kua, drilling kua saturated ntsev dej drilling kua, tsis tshua muaj rhiab heev rau ntsev, muaj zog tsis kam rau ntsev thiab calcium, magnesium, siv raws li lub rheological regulator, nyob rau hauv cov kev mob ntawm tsawg npaum li cas ntawm drilling kua rheology ceev kev hloov kho, tuaj yeem nqa tawm sai sai rau tib lub sijhawm, khaws cov ntsiab lus tsis tshua muaj zog, pab txhim kho qhov nrawm nrawm. Thaum siv los ua cov kua dej poob qis, cov ncuav mog qab zib tuab tuaj yeem tsim. Raws li cov filtrate lim los ntawm lub ncuav mog qab zib lim yog ze rau qhov tsim thawj cov dej, cov filtrate muaj kev puas tsuaj tsawg rau cov roj thiab roj txheej.

Potassium-based drilling kua nruab nrog CMC muaj rhiab heev rau cov poov tshuaj ntsev, calcium ntsev thiab magnesium ntsev. Nws tuaj yeem kho tau sai thiab ua tau zoo ntawm cov khoom rheological ntawm hom drilling kua. Nws tsis tsuas yog muaj cov txiaj ntsig zoo pom tsis zoo, tab sis kuj muaj peev xwm zoo heev los ntxuav cov txiav thiab xyaum cov khoom.

Lub polymer drilling kua nruab nrog CMC yog sib xws nrog lwm cov polymers, muaj zog ncua kev kawm ntawv, thiab tuaj yeem ntxuav cov txiav kom raws sijhawm thiab ua haujlwm tau zoo. Tsis tas li ntawd, cov kua dej drilling kuj yog ib qho zoo heev ntawm cov kua dej poob nrog cov khib nyiab tsawg thiab av nplaum dispersion.

Tsis tshua muaj cov khoom drilling kua nruab nrog CMC tuaj yeem kho cov khoom rheological ntawm cov dej drilling sai, muaj peev xwm tshem tawm tau zoo, raws sijhawm thiab zoo tshem tawm cov txiav, khaws cov dej drilling nrog cov ntsiab lus tsis tshua muaj zog, txhim kho drilling ceev, ruaj khov borehole phab ntsa, thiab muaj cov kua dej zoo heev. kev poob qis.

Ib puag ncig tus phooj ywg drilling kua nruab nrog CMC yog ib puag ncig tus phooj ywg, tsis muaj tshuaj lom, tsis muaj mob thiab tsis muaj ntxhiab, biodegradable thiab tsis yooj yim rau kev puas tsuaj thaum siv. Cov kua dej drilling muaj tus nqi tu qis thiab kev noj qab haus huv thiab kev nyab xeeb ntawm cov neeg ua haujlwm tsim kho tau lav. Nws yog tsim rau drilling nyob rau hauv ntau yam nyuaj geological tej yam kev mob thiab harmless rau ua liaj ua teb ntau lawm.

2. Daim ntawv thov ntawm sodium carboxymethyl cellulose CMC hauv cementing kua (ua tiav kua)

Cementing fluid flow yog txhim kho nrog CEMenting slurry configured nrog CMC, muab kev pom zoo thawj zaug viscosity thiab cov kua dej tsis tshua muaj, thaum tiv thaiv lub qhov dej thiab tiv thaiv cov kua dej nkag mus rau hauv qhov hws thiab tawg.

Cov packers nruab nrog CMC tuaj yeem kho cov kua dej fluidity, thixotropy thiab muaj peev xwm tshem tawm cov theem khoom. Vim tias cov khoom lag luam muaj ntsev zoo (tshwj xeeb tshaj yog cov hlau ions monovalent), cov khoom siv tuaj yeem siv los ntxuav cov dej ntsev packers zoo.

Cov kua dej ua haujlwm tau npaj nrog lub tuam txhab CMC yog cov khoom qis thiab tsis thaiv cov permeability ntawm thaj chaw tsim khoom vim yog cov khib nyiab lossis puas tsuaj rau thaj chaw tsim khoom. Thiab nws muaj dej tsawg, kom cov dej rau hauv cov txheej txheem ntau lawm yog txo, thiab cov dej yuav raug thaiv los ntawm emulsion thiab tsim ib qho dej tuav phenomenon. Cov kua dej ua haujlwm tau tsim nrog CMC thiab PAC muab qhov zoo dua lwm cov dej ua haujlwm. Tiv thaiv thaj chaw tsim khoom los ntawm kev puas tsuaj mus tas li; Cleanhole portability thiab txo borehole tu; Nws yog resistant rau infiltration ntawm dej thiab silt, thiab tsis tshua muaj blistered; Nws tuaj yeem khaws cia lossis rov siv dua los ntawm qhov dej mus rau qhov zoo ntawm tus nqi qis dua li cov dej ua haujlwm ua haujlwm hauv av.

3. Daim ntawv thov ntawm carboxymethyl cellulose sodium CMC nyob rau hauv fracturing kua

Npaj nrog CMC fracturing kua, tuaj yeem txhim kho cov viscosity ntawm cov kua fracturing sai, tuaj yeem nqa proppant mus rau hauv cov roj zoo tawg, tsim kom muaj cov dej ntws tawm, txo qis qhov pom, tsim kom muaj siab sai, thiab ua tiav cov kev hloov pauv ntawm cov kev kub ntxhov, cov khoom tsis muaj residue, tsis muaj kev puas tsuaj rau lub hauv paus, pumpability siab, me me kev sib txhuam, thiab muaj peev xwm nqa tau proppant.

Ntim, cia thiab thauj:

Cov khoom yog ntim rau hauv cov hnab ntawv-yas composite los yog lined yas woven hnab thiab kaw nruj nreem. Net nyhav 25kg ib lub hnab. Cov khoom no yuav tsum tau muab cia rau hauv qhov chaw txias

Qhov chaw qhuav, hauv kev khaws cia thiab kev thauj mus los yuav tsum tiv thaiv kom tsis txhob ya raws, cua sov thiab ntim khoom puas.