Drilling fluid additive HEC (hydroxyethyl cellulose)

Hydroxyethyl Cellulose (HEC) chinhu chinowanzo wedzera chinoshandiswa mumvura yekuchera, inozivikanwawo semadhaka ekuchera, kugadzirisa rheological maitiro uye kuwedzera mashandiro avo panguva yekuchera. Heano maitiro HEC inoshandiswa seyekuchera mvura yekuwedzera:

1. Viscosity Control: HEC imvura inonyungudika polima iyo inogona kuwedzera zvakanyanya viscosity yemvura yekuchera. Nekugadzirisa kusungirirwa kweHEC mumvura, vanochera vanogona kudzora viscosity yayo, iyo yakakosha pakutakura zvakachekwa zvakachekwa kumusoro uye kuchengetedza kugadzikana kwetsime.
2. Fluid Loss Control: HEC inobatsira kuderedza kurasikirwa kwemvura kubva kumvura yekuchera kusvika pakuumbwa panguva yekuchera. Izvi zvakakosha pakuchengetedza yakaringana hydrostatic pressure mutsime, kudzivirira kukuvara kwekuumbwa, uye kuderedza njodzi yekurasika kutenderera.
3. Kuchenesa Gomba: Kuwedzera viscosity kunopihwa neHEC kunobatsira kumisa zvakachekwa zvakachekwa uye zvimwe zvakaonda mumvura yekuchera, zvichiita kuti zvibviswe mugomba. Izvi zvinovandudza kuchenesa gomba uye zvinoderedza mukana wematambudziko ekudzika senge pombi yakanamatira kana kusiyanisa kunamatira.
4. Temperature Stability: HEC inoratidza kugadzikana kwakanaka kwekushisa, zvichiita kuti ive yakakodzera kushandiswa mukuchera mvura inoshandiswa pasi pemamiriro akawanda ekushisa. Inochengetedza rheological properties uye kushanda kunyange pakupisa kwakanyanya kunosangana munzvimbo dzakadzika dzekuchera.
5. Kushivirira Munyu uye Kusvibiswa: HEC inoshivirira kune yakakwira yakawanda yemunyu uye tsvina inowanzowanikwa mumvura yekuchera, yakadai sebrine kana kuchera madhaka ekuwedzera. Izvi zvinova nechokwadi chekushanda kwakafanana uye kugadzikana kwemvura yekuchera kunyange mumamiriro ezvinhu akaoma ekuchera.
6. Kuenderana Nezvimwe Zviwedzerwa: HEC inopindirana nezvimwe zvakasiyana-siyana zvekuchera mvura zvinowedzera, kusanganisira biocides, lubricant, shale inhibitors, uye fluid loss control agents. Inogona kuiswa nyore nyore mukudhirowa kwemvura yekugadzira kuti iwane izvo zvinodiwa uye maitiro ekuita.
7. Mafungiro Ezvakatipoteredza: HEC inowanzoonekwa seine hushamwari kwezvakatipoteredza uye isina chepfu. Izvo hazvikonzere njodzi dzakakura kune zvakatipoteredza kana vashandi kana zvichishandiswa nemazvo mumabasa ekuchera.
8. Chiyero uye Chishandiso: Chiyero cheHEC mumvura yekuchera chinosiyana zvichienderana nezvinhu zvakadai sechinodiwa viscosity, kurasikirwa kwemvura kudiwa kwekudzora, mamiriro ekuchera, uye chaiwo matsime emvura. Kazhinji, HEC inowedzerwa kune yekuchera fluid system uye yakasanganiswa zvakakwana kuti ive nechokwadi chekupararira kweyunifomu isati yashandiswa.

HEC chiwedzere chakasiyana-siyana chinoita basa rakakosha mukugadzirisa mashandiro uye kugadzikana kwezvinwiwa zvekuchera, zvichibatsira mukushanda kwakanaka uye kwakabudirira kwekuchera muindasitiri yeoiri negasi.