Indima ye-polyacrylamide yemizi-mveliso ekutsaleni ioyile

Iimpawu ze-polyacrylamide yemizi-mveliso zokwandisa, ukuqunjelwa kunye nokulawulwa kwe-rheological kolwelo zenza ukuba idlale indima ebalulekileyo kwimveliso yeoyile. Isetyenziswa kakhulu ekubholeni, ekuvaleni amanzi, ekwenzeni amanzi abe ne-asidi, ekuqhekekeni, ekuhlanjweni kwemithombo, ekugqityweni kwemithombo, ekunciphiseni ukutsalwa, ekuchaseni ubungakanani kunye nokususwa kweoyile.

Ngokubanzi, ukusetyenziswa kwe-polyacrylamide kukuphucula izinga lokubuyiselwa kweoyile. Ngokukodwa, amasimi amaninzi eoyile angene kwimveliso yesibini neyesithathu, ubunzulu bedama ngokubanzi bungaphezulu kwe-1000m, kwaye ubunzulu obunye bedama bufikelela kwi-7000m. Ukungafani kokwakheka kunye namasimi eoyile aselunxwemeni kuye kwabeka phambili iimeko ezingqongqo zokusebenza kokubuyiselwa kweoyile.

Phakathi kwazo, imveliso yeoyile enzulu kunye nemveliso yeoyile engaphandle kolwandle ngokufanayo zibeka phambili iimfuno ezintsha ze-PAM, ezifuna ukuba imelane nokuchetywa, ubushushu obuphezulu (ngaphezulu kwe-100 ° C ukuya kwi-200 ° C), i-calcium ion, ukumelana ne-magnesium ion, ukumelana nokuwohloka kwamanzi olwandle, ukususela ngeminyaka yoo-1980. Inkqubela enkulu yenziwe kuphando olusisiseko, ukulungiswa, uphando lwesicelo kunye nophuhliso lweentlobo ngeentlobo ze-PAM ezifanelekileyo ukubuyiswa kweoyile kwamanye amazwe.

I-polyacrylamide yezimboni isetyenziswa njenge-adjuster yolwelo lokubhola kunye ne-fracturing fluid additive:

I-polyacrylamide (HPAM) e-hydrolyzed ngokwenxalenye, ephuma kwi-hydrolysis ye-polyacrylamide, idla ngokusetyenziswa njengesiguquli solwelo lokubhola. Indima yayo kukulawula i-rheology yolwelo lokubhola, ukuthwala iziqwenga, ukuthambisa i-drill bit, ukunciphisa ukulahleka kolwelo, njl. Ulwelo lokubhola oluhlengahlengiswe nge-polyacrylamide lunomxhuzulane ophantsi, onokunciphisa uxinzelelo kunye nokuvaleka kwi-oyile negesi, kulula ukuyifumana i-oyile negesi, kwaye ilungele ukubhola, isantya sokubhola siphezulu nge-19% kune-oyile eqhelekileyo yokubhola, kwaye malunga ne-45% iphezulu kunezinga lokubhola ngoomatshini.

Ukongeza, inokunciphisa kakhulu iingozi zokugrumba ezibambekileyo, inciphise ukuguguleka kwezixhobo, kwaye ithintele ukulahleka nokuwa. Itekhnoloji yokuqhekeza yinyathelo elibalulekileyo lokukhuthaza ukuphuhlisa iibhedi eziqinileyo kwiindawo zeoyile. Ulwelo lwe-Polyacrylamide crosslinked fracturing lusetyenziswa kakhulu ngenxa ye-viscosity yalo ephezulu, ukungqubana okuphantsi, umthamo wesanti oxhonyiweyo olungileyo, ukuhluzwa okuncinci, uzinzo oluhle lwe-viscosity, intsalela encinci, ukunikezelwa ngokubanzi, ukulungiswa okulula kunye neendleko eziphantsi.

Kwinkqubo yokuqhekeka kunye nokwenza i-asidi, i-polyacrylamide ilungiswa ibe yisisombululo samanzi esinoxinzelelo lwe-0.01% ukuya kwi-4% kwaye ipompelwe kwisakhiwo esingaphantsi komhlaba ukuze iqhekeze ukwakheka. Isisombululo se-polyacrylamide yezimboni sinomsebenzi wokwandisa nokuthwala isanti kunye nokunciphisa ukulahleka kolwelo lokuqhekeka. Ukongeza, i-polyacrylamide inefuthe lokunciphisa ukumelana, ukuze ilahleko yokudluliselwa koxinzelelo incitshiswe.