Yintoni ukusetyenziswa kweselulosi ekugrumbeni udaka

I-Cellulose, i-carbohydrate eyinkimbinkimbi efumaneka kwiindonga zeeseli zezityalo, idlala indima ebalulekileyo kumashishini ahlukeneyo, kuquka icandelo leoli kunye negesi. Ekubhobhozeni udaka, i-cellulose isebenza ngeenjongo ezininzi ngenxa yeempawu zayo ezizodwa kunye neempawu.

Ukugrumba udaka, okwakwaziwa njengolwelo lokugrumba, yinxalenye ebalulekileyo kwinkqubo yokomba yeoli nerhasi. Isebenza imisebenzi emininzi ebalulekileyo, equka ukupholisa kunye nokuthambisa isuntswana le-drill, ukuthwala i-rock cuts phezulu, ukugcina uzinzo lwe-wellbore, kunye nokuthintela umonakalo wokwakheka. Ukuzalisekisa le misebenzi ngokufanelekileyo, udaka lokwemba kufuneka lube neempawu ezithile ezifana ne-viscosity, ulawulo lokulahlekelwa kwamanzi, ukunqunyanyiswa kwezinto eziqinileyo, kunye nokuhambelana neemeko ze-downhole.

Iselulosiidla ngokusetyenziswa ekugrumbeni imixube yodaka njengento ephambili yokongeza ngenxa yeempawu zayo ezikhethekileyo zerheological kunye nokuguquguquka. Omnye wemisebenzi ephambili ye-cellulose ekuqhubeni udaka kukubonelela nge-viscosity kunye nolawulo lwe-rheological. I-Viscosity ngumlinganiselo wokuxhathisa kolwelo ukuba ungampompozi, kwaye ibalulekile ekugcineni iimpawu zokuqukuqela ezinqwenelekayo zokomba udaka. Ngokongeza i-cellulose, i-viscosity yodaka inokulungelelaniswa ukuze ihlangabezane neemfuno ezithile zomsebenzi wokugaya. Oku kubaluleke kakhulu ekulawuleni izinga lokungena, ukuthintela ukulahlekelwa kwamanzi ekubunjweni, kunye nokuthwala i-drill cuttings phezulu.

I-cellulose isebenza njenge-viscosifier kunye ne-arhente yokulawula ukulahleka kwamanzi ngaxeshanye. Njenge-viscosifier, inceda ukumisa kunye nokuthutha i-drill cuttings ukuya phezulu, ukuthintela ukuba zingahlali kwaye ziqokelele emazantsi omthombo. Oku kuqinisekisa ukusebenza ngokufanelekileyo kokugrumba kunye nokunciphisa umngcipheko weziganeko zokuxinga kwemibhobho. Ukongeza, i-cellulose yenza ikeyiki ecekethekileyo, enganyangekiyo yokucoca kwiindonga zomthombo, enceda ukulawula ukulahleka kolwelo ekubunjweni kwayo. Oku kubalulekile ekugcineni uzinzo lwe-wellbore kunye nokuthintela umonakalo wokubunjwa obangelwa yi-fluid invasion.

Ukongeza kwiipropati zayo zokulawula ilahleko ye-rheological kunye ne-fluid, i-cellulose inikezela ngeenzuzo zokusingqongileyo ekuqhubeni ukwakhiwa kodaka. Ngokungafaniyo nezongezo zokwenziwa, i-cellulose iyakwazi ukubola kwaye ihambelana nokusingqongileyo, oko kuyenza ibe lolona khetho lukhethwayo kwimisebenzi yokomba ebuthathaka kokusingqongileyo. I-biodegradability yayo iqinisekisa ukuba iyaphuka ngokwemvelo ngokuhamba kwexesha, ukunciphisa impembelelo yokusingqongileyo yemisebenzi yokomba.

I-Cellulose inokudityaniswa ekwenziweni kodaka ngeendlela ezahlukeneyo, kubandakanya i-cellulose engumgubo, i-cellulose fibers, kunye ne-cellulose derivativesI-carboxymethyl cellulose (CMC)kwayei-hydroxyethyl cellulose (HEC). Ifomu nganye ibonelela ngeenzuzo ezithile kunye nokusebenza ngokuxhomekeke kwiimfuno zomsebenzi wokomba.

I-cellulose yomgubo isetyenziswa ngokuqhelekileyo njenge-viscosifier ephambili kunye ne-arhente yokulawula ukulahleka kwamanzi kwiinkqubo zodaka ezisekelwe emanzini. Ihlakazeka ngokulula emanzini kwaye ibonisa iipropathi ezigqwesileyo zokunqunyanyiswa, iyenza ilungele ukuthwala i-drill cuttings ukuya phezulu.

Iintsinga ze-cellulose, kwelinye icala, zinde kwaye zine-fibrous kune-cellulose engumgubo. Zihlala zisetyenziswa kwiinkqubo zodaka ezinobunzima, apho ulwelo oluphezulu lokomba lufuneka ukulawula uxinzelelo lokubumba. Imicu yeCellulose inceda ukukhulisa imfezeko yesakhiwo sodaka, ukuphucula ukusebenza kakuhle kokucoca umngxuma, kunye nokunciphisa i-torque kunye nokutsala ngexesha lomsebenzi wokomba.

Cellulose derivatives ezifanaCMCkwayeI-HECziintlobo zeselulosi eziguqulwe ngokwekhemikhali ezibonelela ngeempawu zokusebenza eziphuculweyo. Zihlala zisetyenziswa kwizinto ezikhethekileyo zokomba udaka apho iimfuno zokusebenza ezithile kufuneka kuhlangatyezwane nazo. Ngokomzekelo, i-CMC isetyenziswa ngokubanzi njenge-inhibitor ye-shale kunye ne-arhente yokulawula ukulahleka kwamanzi kwiinkqubo zodaka ezisekelwe emanzini, ngelixa i-HEC isetyenziswe njenge-rheology modifier kunye ne-agent yokulawula ukucoca kwiinkqubo zodaka ezisekelwe kwi-oyile.

I-cellulose idlala indima ebalulekileyo ekugrumbeni udaka ngenxa yeempawu zayo ezizodwa kunye nokuguquguquka. Ukusuka ekuboneleleni nge-viscosity kunye nolawulo lwe-rheological ekwandiseni ulawulo lwelahleko yolwelo kunye nokuzinza kwendalo, i-cellulose ibonelela ngeenzuzo ezininzi kwimisebenzi yokomba. Njengoko ishishini leoli kunye negesi liqhubeka nokuvela, imfuno yezisombululo zodaka ezisebenzayo kunye nezokusingqongileyo kulindeleke ukuba zinyuke, ngakumbi ukugqamisa ukubaluleka kweselulosi njengesongezo esibalulekileyo ekwenziweni kolwelo lokomba.