Polyanionic Cellulose (PAC)

Polyanionic Cellulose (PAC) inonyungudika nemvura inobuda selulosi iyo inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana kune yayo rheological zvimiro uye yekurasikirwa kwemvura yekudzora masimba. Iyo inotorwa kubva kune yakasikwa cellulose kuburikidza neakatevedzana emakemikari shanduko, zvichikonzera iyo polymer ine anionic charges padivi peselulosi musana. Heano mamwe mapoinzi akakosha nezve Polyanionic Cellulose:

1. Mushonga Wemakemikari: PAC ikemikari yakafanana neselulosi asi ine anionic carboxyl mapoka (-COO-) akabatanidzwa kune cellulose musana. Aya mapoka eanionic anopa PAC neayo akasiyana zvivakwa, anosanganisira kunyungudika kwemvura uye kugona kudyidzana nemamwe mamorekuru kuburikidza nekuita kwemagetsi.
2. Basa rekushanda: PAC inonyanya kushandiswa seye rheology modifier uye fluid kurasikirwa inodzora mumiriri mukuchera zvinwiwa zveoiri uye gasi kuongorora. Inobatsira kudzora viscosity uye kuyerera zvimiro zvezvinwiwa zvekuchera, inovandudza kumiswa kwezvakaoma, uye inoderedza kurasikirwa kwemvura kuita porous formations. PAC zvakare inosimudzira kuchenesa gomba uye kudzivirira kusagadzikana kwetsime panguva yekuchera.
3. Zvishandiso: Kushandiswa kukuru kwePAC kuri muindasitiri yemafuta negasi, kwainoshandiswa mukuchera madhaka maumbirwo. Inowanzo shandiswa mumvura-based-based uye mafuta-based drilling zvinwiwa kuti zvigadzirise kushanda uye kuve nechokwadi chekuchera kwakaringana. PAC inoshandiswawo mune mamwe maindasitiri mukukora, kudzikamisa, uye kuchengetedza zvivakwa zvemvura mumhando dzakasiyana siyana.
4. Mhando: PAC inowanikwa mumagiredhi akasiyana uye viscosities kuti ienderane nezvinodiwa zvekushandisa. Mhando dzakajairika dzePAC dzinosanganisira yakaderera-viscosity mamakisi ekudzora kurasikirwa kwemvura uye yakakwirira-viscosity mamakisi ekugadzirisa viscosity uye kuturika kwezvakaoma mumvura yekuchera. Sarudzo yemhando yePAC inoenderana nezvinhu zvakaita semamiriro ekunze, nharaunda yekuchera, uye mamiriro emvura.
5. Zvakanakira: Kushandiswa kwePAC kunopa akati wandei mabhenefiti mumabasa ekuchera, kusanganisira:
   • Kubudirira kwemvura kurasikirwa kwekudzora kuchengetedza wellbore kugadzikana uye kudzivirira kuumbwa kukuvara.
   • Yakavandudzwa kumiswa kwezvibooreso zvekucheka uye zvakaonda, zvichitungamira kune nani kuchenesa gomba.
   • Yakakwidziridzwa rheological zvimiro, kuve nechokwadi chekuenderana kwemvura kuita pasi peakasiyana downhole mamiriro.
   • Kuenderana nezvimwe zvinowedzerwa uye kudhirowa kwemvura zvinhu, kufambisa kuumbwa kwekugadzirisa uye optimization.
6. Mafungiro Ezvakatipoteredza: Nepo PAC ichishandiswa zvakanyanya mukuchera zvinwiwa, kukanganisa kwayo kwezvakatipoteredza uye kuparara kwayo kunofanirwa kutariswa. Nhamburiko dziri kuenderera mberi dzekugadzira dzimwe nzira dzine hushamwari kwezvakatipoteredza kuPAC uye kuderedza nharaunda yayo mumabasa ekuchera.

Polyanionic Cellulose (PAC) inoshandiswa zvakasiyana-siyana uye yakakosha yekuwedzera muindasitiri yeoiri negasi, uko inoita basa rakakosha mukugadzirisa kudhirowa kwemvura uye kuve nechokwadi chekushanda kwakanaka kwekuchera. Yayo yakasarudzika rheological properties, fluid kurasikirwa masimba masimba, uye kuenderana kunoita kuti ive chinhu chakakosha mukuchera madhaka maumbirwo.