Ukusetshenziswa kwe-CMC ku-Drilling Fluid

I-Carboxymethyl cellulose CMCiyimpushana ecwebezelayo emhlophe esebenza ngokuzinzile futhi incibilika kalula emanzini. Isixazululo siwuketshezi lwe-viscous olune-alkali olungathathi hlangothi noma olune-alkali, oluhambisana namanye ama-glues nama-resin ancibilika emanzini. Umkhiqizo ungasetshenziswa njenge-adhesive , thickener, suspending agent, emulsifier, dispersant, stabilizer, sizing agent, njll. I-Carboxymethyl cellulose isetshenziselwa ukugaya i-petroleum negesi yemvelo, ukumba kahle namanye amaphrojekthi.

Indima ye-carboxymethyl cellulose CMC: 1. Udaka oluqukethe i-CMC lungenza udonga lomthombo lube ikhekhe lokuhlunga elincanyana neliqinile elinokungena kancane, linciphise ukulahlekelwa kwamanzi. 2. Ngemva kokwengeza i-CMC odakeni, umshini wokumba ungathola amandla okugunda okuqala aphansi, ukuze udaka lukhulule kalula igesi egoqwe kulo, futhi ngesikhathi esifanayo, imfucumfucu ingalahlwa ngokushesha emgodini wodaka. 3. Ukumba udaka, njengamanye ama-suspension and dispersions, kunempilo yeshalofu. Ukwengeza i-CMC kungayenza izinze futhi kwelule impilo yeshalofu. 4. Udaka oluqukethe i-CMC aluvamile ukuthintwa isikhunta, ngakho-ke akudingekile ukugcina inani eliphezulu le-pH nokusebenzisa izivimbelakuvunda. 5. Iqukethe i-CMC njenge-ejenti yokwelapha yokumba uketshezi olukhipha udaka, olungamelana nokungcoliswa kukasawoti omningi oncibilikayo. 6. Udaka oluqukethe i-CMC lunozinzo oluhle futhi lunganciphisa ukulahlekelwa kwamanzi ngisho noma izinga lokushisa lingaphezu kuka-150°C. I-CMC ene-viscosity ephezulu kanye nezinga eliphakeme lokushintshwa lilungele udaka olunomthamo ophansi, futhi i-CMC ene-viscosity ephansi kanye nezinga eliphezulu lokushintshwa lifanele udaka olunomthamo omkhulu. Ukukhethwa kwe-CMC kufanele kunqunywe ngokuya ngezimo ezihlukene ezifana nohlobo lodaka, indawo, nokujula komthombo.

Ukusetshenziswa kwe-CMC ku-Drilling Fluid

1. Ukusebenza okuthuthukisiwe kokulahlekelwa kwesihlungi kanye nekhwalithi yekhekhe lodaka, ikhono elithuthukisiwe lokulwa nokubanjwa.

I-CMC iyisinciphisi esihle sokulahlekelwa uketshezi. Ukuyengeza odakeni kuzokwandisa i-viscosity yesigaba se-liquid, ngaleyo ndlela kwandise ukumelana ne-sepage ye-filtrate, ngakho-ke ukulahlekelwa kwamanzi kuzoncishiswa.

Ukwengezwa kwe-CMC kwenza ikhekhe lodaka liminyene, liqine futhi libushelelezi, ngaleyo ndlela kuncishiswe ukwenzeka kwe-jamming ye-differential pressure jamming kanye nethuluzi lokumba ukunyakaza okukude, kunciphisa umzuzu wokumelana nentonga ye-aluminium ejikelezayo futhi kudambise ukwenzeka kokumunca emthonjeni.

Ngodaka olujwayelekile, inani lomkhiqizo we-CMC medium viscous ngu-0.2-0.3%, futhi ukulahlekelwa kwamanzi e-API kuncishiswe kakhulu.

2. Ukwenziwa ngcono kokuthwala amatshe kanye nokuqina kodaka.

Ngenxa yokuthi i-CMC inekhono elihle lokujiya, endabeni yokuqukethwe okuphansi kokususwa kwenhlabathi, ukwengeza inani elifanele le-CMC kwanele ukugcina i-viscosity edingekayo ukuthwala ukusikwa nokumisa i-barite, kanye nokwenza ngcono ukuqina kodaka.

3. Melana nokuhlakazeka kobumba futhi usize ekuvimbeleni ukubhidlika

Ukusebenza kokunciphisa ukulahlekelwa kwamanzi kwe-CMC kunciphisa izinga lokugeleza kwamanzi kwe-shale yodaka odongeni lomthombo, futhi umphumela wokumboza wamaketanga amade e-CMC edwaleni lodonga lomthombo uqinisa isakhiwo sedwala futhi kwenze kube nzima ukuxebuka nokudilika.

4. I-CMC iyi-ejenti yokwelapha udaka ehambisana kahle

I-CMC ingasetshenziswa ngokuhlanganyela nama-ejenti okwelapha ahlukahlukene odakeni lwezinhlelo ezihlukahlukene, futhi ithola imiphumela emihle.

5. Ukusetshenziswa kwe-CMC ekufakweni kukasimende uketshezi lwesikhala

Ukwakhiwa okuvamile kokufakwa kukasimende komthombo kanye nomjovo usimende kuyingxenye ebalulekile yokuqinisekisa izinga likasimende. I-spacer fluid elungiselelwe yi-CMC inezinzuzo zokunciphisa ukumelana nokugeleza nokwakhiwa okulula.

6. Ukusetshenziswa kwe-CMC oketshezini lokusebenza

Ekuhloleni uwoyela kanye nokusebenza komsebenzi, uma kusetshenziswa udaka oluqinile oluqinile, luzobangela ukungcoliswa okukhulu kongqimba lwamafutha, futhi kuzoba nzima kakhulu ukuqeda lokhu kungcola. Uma amanzi ahlanzekile noma amanzi ahlanzekile asetshenziswa nje njengoketshezi olusebenzayo, ukungcola okukhulu kuzokwenzeka. Ukuvuza nokulahlekelwa kokuhlunga kwamanzi ongqimbeni lukawoyela kuzodala isenzakalo sokukhiya amanzi, noma kubangele ingxenye enodaka kungqimba kawoyela ukuthi inwebeke, kukhinyabeze ukungena kongqimba lukawoyela, futhi kulethe uchungechunge lobunzima emsebenzini.

I-CMC isetshenziswa ku-workover fluid, engaxazulula ngempumelelo izinkinga ezingenhla. Ngemithombo enengcindezi ephansi noma imithombo enengcindezi ephezulu, ifomula ingakhethwa ngokuya ngesimo sokuvuza:

Isendlalelo esiphansi sokucindezela: ukuvuza okuncane: amanzi ahlanzekile + 0.5-0.7% CMC; ukuvuza okujwayelekile: amanzi ahlanzekile + 1.09-1.2% CMC; ukuvuza okukhulu: amanzi ahlanzekile + 1.5% CMC.