Iyini i-PAC kuketshezi lokubhoboza?

Kuma-drilling fluids, i-PAC ibhekisela ku-polyanionic cellulose, okuyisithako esiyinhloko esisetshenziswa ekwakhiweni kodaka lokubhoboza. Udaka lokubhoboza, olwaziwa nangokuthi uketshezi lokubhoboza, ludlala indima ebalulekile enqubweni yokubhoboza imithombo kawoyela negesi. Lufeza izinjongo ezahlukahlukene, njengokupholisa nokugcoba ama-drill bits, ukuthutha izingcezu ziye phezulu, ukuhlinzeka ngokuqina kwe-wellbore, kanye nokulawula ingcindezi yokwakheka.

I-polyanionic cellulose iyi-polymer encibilika emanzini etholakala ku-cellulose, i-polymer yemvelo etholakala ezitshalweni. I-PAC yengezwa koketshezi lokubhoboza ukuze kuthuthukiswe i-rheology kanye nezakhiwo zokulawula ukuhlunga.

1. Isakhiwo samakhemikhali kanye nezakhiwo ze-polyanionic cellulose (PAC):

I-PAC iyi-polymer ye-cellulose eguquliwe ene-anionic charge.
Isakhiwo sayo samakhemikhali senza kube lula ukuncibilika emanzini, okwenza ikhambi elizinzile.
Imvelo ye-anionic ye-PAC inegalelo ekhonweni layo lokuxhumana nezinye izingxenye kuketshezi lokubhoboza.

2. Izakhiwo ze-rheological ezithuthukisiwe:

I-PAC isetshenziselwa ukuguqula izakhiwo ze-rheological zoketshezi lokubhoboza.
Kuthinta i-viscosity, amandla ejeli kanye nokulawulwa kokulahlekelwa uketshezi.
Ukulawula i-rheology kubalulekile ekwenzeni ngcono ukuthuthwa kwezicucu kanye nokugcina ukuqina kwe-wellbore.

3. Ukulawula isihlungi:

Omunye wemisebenzi eyinhloko ye-PAC ukulawula ukulahleka koketshezi ngesikhathi sokubhoboza.
Yakha ikhekhe lokuhlunga elincane, elingangenwa amanzi ezindongeni zomthombo, ivimbela ukulahleka koketshezi lokubhoboza ekwakhekeni.
Lokhu kusiza ukugcina izakhiwo ezifiselekayo zodaka lokubhoboza futhi kuvimbele ukulimala kokwakheka.

4. Ukuqina kwe-Wellbore:

I-PAC inegalelo ekuzinzeni kwe-wellbore ngokuvimbela uketshezi oluningi ukuthi lungangeni ekwakhekeni.
Kuyasiza ekunciphiseni izinkinga zokubhajwa kwe-differential kanye nezinye izinkinga ezihlobene nokungazinzi kwe-wellbore.
Ukuzinza kwe-Wellbore kubalulekile empumelelweni yemisebenzi yokubhoboza.

5. Izinhlobo ze-PAC kanye nezicelo zazo:

Amazinga ahlukene e-PAC ayatholakala kuye ngesisindo sama-molecule kanye nezinga lokufakwa esikhundleni.
Ama-PAC ane-viscosity ephezulu avame ukusetshenziswa lapho kudingeka khona ukulawulwa okuphezulu kwe-rheology.
Ezinhlelweni lapho ukulawula ukulahleka koketshezi kuyindaba eyinhloko, i-PAC enciphile ingakhethwa.

6. Izinto okufanele zicatshangelwe emvelweni:

I-PAC ivame ukubhekwa njengenobungani nemvelo ngoba iyabola.
Ukuhlolwa komthelela emvelweni kwenziwe ukuqinisekisa ukusetshenziswa nokulahlwa koketshezi lokubhoboza oluqukethe i-PAC ngendlela efanele.

7. Ukulawulwa kwekhwalithi nokuhlolwa:

Kusetshenziswa izinyathelo zokulawula ikhwalithi eziqinile ukuqinisekisa ukusebenza kahle kwe-PAC koketshezi lokubhoboza.
Ukuhlolwa okuhlukahlukene, okuhlanganisa ukulinganisa kwe-rheological kanye nokuhlolwa kokulahlekelwa uketshezi, kwenziwa ukuhlola ukusebenza kodaka lokubhoboza oluqukethe i-PAC.

8. Izinselele kanye nokusungula izinto ezintsha:

Naphezu kokusetshenziswa kwayo kabanzi, kungase kuvele izinselele ezifana nokuzinza kokushisa kanye nokuhambisana nezinye izithako.
Ucwaningo oluqhubekayo kanye nokusungula izinto ezintsha kunikezelwe ekuxazululeni lezi zinselele kanye nokuthuthukisa ukusebenza kwe-PAC ezintweni zokubhoboza.

I-Polyanionic cellulose (PAC) iyisici esibalulekile ekwakhiweni koketshezi lokubhoboza futhi inegalelo ekulawulweni kwe-rheology, ekulawulweni kokuhlunga kanye nokuqina kwe-wellbore. Izakhiwo zayo eziyingqayizivele ziyenza ibe yisithako esibalulekile embonini yokubhoboza uwoyela negesi, idlala indima ebalulekile empumelelweni nasekusebenzeni kahle kwemisebenzi yokubhoboza.