Polyanionic cellulose tsawg viscosity (PAC-LV)

Polyanionic cellulose low viscosity (PAC-LV) yog ib hom polyanionic cellulose uas feem ntau siv los ua ib qho ntxiv hauv cov dej drilling rau roj thiab roj tshawb nrhiav. Nov yog cov ntsiab lus ntawm PAC-LV thiab nws lub luag haujlwm hauv kev ua haujlwm drilling:

1. Muaj pes tsawg leeg: PAC-LV yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag, los ntawm kev hloov tshuaj. Carboxymethyl pawg tau nkag mus rau hauv cov pob txha cellulose, muab nws anionic (tsis zoo them) cov khoom.
2. Kev ua haujlwm:
   • Viscosifier: Thaum PAC-LV muaj viscosity qis dua piv rau lwm qib ntawm polyanionic cellulose, nws tseem ua haujlwm ua viscosifier hauv cov kua dej drilling. Nws pab txhawb cov viscosity ntawm cov kua, pab nyob rau hauv lub ncua kev kawm ntawv thiab thauj ntawm drilled cuttings.
   • Fluid Poob Control: PAC-LV kuj tseem txhawb nqa kev tswj tsis tau dej los ntawm kev tsim cov ncuav mog qab zib nyias nyias ntawm phab ntsa borehole, txo qhov poob ntawm cov kua dej hauv qhov tsim.
   • Rheology Modifier: PAC-LV cuam tshuam rau tus cwj pwm ntws thiab cov khoom siv rheological ntawm cov kua dej drilling, txhim kho kev ncua ntawm cov khib nyiab thiab txo qis.
3. Daim ntawv thov:
   • Roj thiab Gas Drilling: PAC-LV yog siv rau hauv cov dej-raws li drilling kua rau kev tshawb nrhiav roj thiab roj. Nws pab txhim kho wellbore stability, tiv thaiv tsim kev puas tsuaj, thiab txhim kho drilling efficiency.
   • Kev tsim kho: PAC-LV kuj tseem tuaj yeem siv los ua cov thickener thiab dej khaws cia hauv cov cementitious formulations xws li grouts, slurries, thiab mortars siv hauv kev tsim kho.
   • Pharmaceuticals: Nyob rau hauv cov tshuaj formulations, PAC-LV tuaj yeem ua tus binder, disintegrant, thiab tswj-tso tus neeg saib xyuas hauv cov ntsiav tshuaj thiab tshuaj ntsiav formulations.
4. Khoom:
   • Dej Solubility: PAC-LV yog yooj yim soluble nyob rau hauv dej, tso cai rau ib qho yooj yim incorporated rau hauv aqueous drilling kua systems.
   • Thermal Stability: PAC-LV tswj nws cov yam ntxwv ua tau zoo tshaj qhov kub ntawm ntau yam uas tau ntsib hauv kev ua haujlwm drilling.
   • Salt Tolerance: PAC-LV qhia tau hais tias muaj kev sib raug zoo nrog cov ntsev ntau thiab cov ntsev uas nquag ntsib hauv thaj chaw oilfield.
   • Biodegradability: Zoo li lwm cov ntaub ntawv ntawm polyanionic cellulose, PAC-LV yog muab los ntawm cov nroj tsuag txuas dua tshiab thiab yog biodegradable, ua rau nws tus phooj ywg ib puag ncig.
5. Quality thiab Specifications:
   • PAC-LV cov khoom lag luam muaj nyob rau hauv ntau qib thiab cov lus qhia tshwj xeeb raws li cov kev xav tau ntawm cov dej drilling.
   • Kev tswj xyuas kev ua tau zoo ua kom zoo sib xws thiab ua raws li cov qauv kev lag luam, suav nrog API (American Petroleum Institute) cov lus qhia tshwj xeeb rau cov kua dej ntxiv.

Hauv cov ntsiab lus, polyanionic cellulose low viscosity (PAC-LV) yog ib qho tseem ceeb additive nyob rau hauv cov dej-raws li drilling kua, muab viscosification, kua poob tswj, thiab rheology hloov cov khoom los txhim kho drilling kev ua tau zoo thiab wellbore stability nyob rau hauv cov roj thiab roj kev tshawb fawb.