Ukusetyenziswa kwe-polyanionic cellulose kwi-oyile yokugaya

I-Polyanionic cellulose (PAC) yipolymer enyibilikayo emanzini esetyenziswa kakhulu kushishino lwepetroleum njengesongezo solwelo lokomba. I-polyanionic derivative ye-cellulose, eyenziwe ngokuguqulwa kweekhemikhali ze-cellulose kunye ne-carboxymethyl. I-PAC ineempawu ezibalaseleyo ezifana nokunyibilika okuphezulu kwamanzi, ukuzinza kwe-thermal, kunye nokumelana ne-hydrolysis. Ezi zakhiwo zenza iPAC ibe sisongezo esifanelekileyo sokugrumba iinkqubo zolwelo kuphononongo lwepetroleum kunye nemveliso.

Ukusetyenziswa kwePAC kwi-oyile yokomba ubukhulu becala ngenxa yokukwazi ukulawula i-viscosity kunye neempawu zokucoca ulwelo lokomba. Ulawulo lwe-Viscosity luyinto ebalulekileyo kwimisebenzi yokomba njengoko ichaphazela ukusebenza kakuhle kunye nokhuseleko. Ukusetyenziswa kwe-PAC kunceda ukuzinzisa i-viscosity ye-drilling fluid, ebaluleke kakhulu ekugcineni iipropati zokuhamba kwe-drilling fluid. I-viscosity ye-drilling fluid ilawulwa yi-concentration ye-PAC esetyenziswayo kunye nobunzima be-molecular of polymer. I-molecule ye-PAC isebenza njenge-thickener, okanye i-viscosifier, kuba inyusa i-viscosity yolwelo lokomba. I-viscosity ye-drilling fluid ixhomekeke kugxininiso lwe-PAC, iqondo lokutshintshwa kunye nobunzima be-molecular.

Ulawulo lokuhluza yenye into ebalulekileyo kwimisebenzi yokomba. Ukusebenza kokucoca kunxulumene nesantya apho ulwelo lungena eludongeni lwequla ngexesha lokomba. Ukusebenzisa iPAC kunceda ukuphucula ulawulo lokuhluza kunye nokunciphisa ukungena kwamanzi. Ukungena kwamanzi kungakhokelela ekulahlekeni kokujikeleza, umonakalo wokwakheka kunye nokunciphisa ukusebenza kakuhle. Ukongeza i-PAC kwi-drilling fluid idala i-gel-efana nesakhiwo esisebenza njengekhekhe lokucoca kwiindonga zequla. Le keyiki yokucoca inciphisa ukungena kwamanzi, inceda ukugcina ingqibelelo ye-wellbore kunye nokunciphisa umngcipheko womonakalo wokwakheka.

I-PAC ikwasetyenziselwa ukuphucula iimpawu zokucinezela i-shale yolwelo lokomba. Ukunyanzeliswa kwe-Shale kukukwazi ukukhupha amanzi ukukhusela i-shale esebenzayo kwi-hydrating kunye nokudumba. Ukukhutshwa kwamanzi kunye nokwandiswa kwe-shale esebenzayo kunokukhokelela kwiingxaki ezifana nokungazinzi kwequla, ukuxinga kwemibhobho, kunye nokulahleka kokujikeleza. Ukongeza iPAC kulwelo lokomba kudala umqobo phakathi kweshale kunye nolwelo lokomba. Lo mqobo unceda ukugcina ingqibelelo yodonga lomthombo ngokunciphisa i-hydration kunye nokuvuvukala kwe-shale.

Olunye usetyenziso lwePAC ekombiweni kwe-oyile lufana nesongezo sokunciphisa ilahleko yamanzi. Ilahleko yokuhluza ibhekisa ekulahlekeni kolwelo lokomba olungena ekubunjweni ngexesha lokomba. Le lahleko ingakhokelela kumonakalo wokwakheka, ukujikeleza okulahlekileyo kunye nokunciphisa ukusebenza kakuhle kokomba. Ukusetyenziswa kwePAC kunceda ukunciphisa ilahleko ulwelo ngokwenza ikhekhe lokucoca eludongeni iqula ezithintela flow ulwelo ekubunjweni. Ukuncitshiswa kwelahleko yolwelo kunceda ukugcina ingqibelelo ye-wellbore kunye nokuphucula ukusebenza kakuhle kokomba.

I-PAC ingasetyenziselwa ukuphucula uzinzo lwe-wellbore yolwelo lokomba. Uzinzo lwe-Wellbore lubhekiselele kubuchule bokwemba ulwelo ukugcina uzinzo lwe-wellbore ngexesha lokomba. Ukusetyenziswa kwePAC kunceda ukuzinzisa udonga lwequla ngokwenza ikeyiki yokucoca eludongeni lwequla. Le keyiki yokucoca inciphisa ukungena kwamanzi eludongeni kwaye inciphisa umngcipheko wokungazinzi kwe-wellbore.

Ukusetyenziswa kwe-polyanionic cellulose kwi-oyile yokugaya inika izibonelelo ezininzi. I-PAC isetyenziselwa ukulawula i-viscosity kunye nokusebenza kokucoca kwe-drilling fluid, ukuphucula ukusebenza kwe-shale inhibition, ukunciphisa ilahleko yokuhluza, kunye nokuphucula ukuzinza kwe-wellbore. Ukusetyenziswa kwePAC kwi-oyile yokugaya kunceda ukwandisa ukusebenza kakuhle kunye nokunciphisa umngcipheko wokulimala kokubunjwa, ukujikeleza okulahlekileyo kunye nokungazinzi kwe-wellbore. Ke ngoko, ukusetyenziswa kwePAC kubalulekile kwimpumelelo yokombiwa kwe-oyile kunye nokuveliswa.