Kugwiritsa ntchito CMC mu Drilling Fluid

Carboxymethyl cellulose CMCndi woyera flocculent ufa ndi ntchito khola ndipo mosavuta sungunuka m'madzi. Njira yothetsera vutoli ndi yopanda ndale kapena yamchere yowoneka bwino yamadzimadzi, yomwe imagwirizana ndi zomatira ndi ma resins osungunuka m'madzi. mankhwala angagwiritsidwe ntchito monga zomatira , thickener, suspending wothandizira, emulsifier, dispersant, stabilizer, sizing wothandizira, etc. Carboxymethyl mapadi ntchito mafuta ndi gasi pobowola, bwino kukumba ndi ntchito zina.

Udindo wa carboxymethyl cellulose CMC: 1. Matope okhala ndi CMC amatha kupanga khoma lachitsime kukhala keke yopyapyala komanso yolimba yokhala ndi permeability yochepa, kuchepetsa kutaya kwa madzi. 2. Pambuyo powonjezera CMC kumatope, chobowola chobowola chikhoza kupeza mphamvu yochepa yoyamba yometa ubweya, kotero kuti matope amatha kumasula mpweya wokulungidwa mmenemo, ndipo panthawi imodzimodziyo, zinyalala zimatha kutayidwa mwamsanga mu dzenje lamatope. 3. Kubowola matope, monga kuyimitsidwa kwina ndi kubalalitsidwa, kumakhala ndi alumali. Kuwonjezera CMC kumatha kupangitsa kuti ikhale yokhazikika ndikutalikitsa moyo wa alumali. 4. Matope omwe ali ndi CMC samakhudzidwa kawirikawiri ndi nkhungu, choncho sikoyenera kukhala ndi pH yamtengo wapatali ndikugwiritsa ntchito zotetezera. 5. Muli CMC ngati wothandizira pobowola matope kukhetsa madzimadzi, amene akhoza kukana kuipitsa zosiyanasiyana sungunuka mchere. 6. Matope okhala ndi CMC amakhala okhazikika bwino ndipo amatha kuchepetsa kutayika kwa madzi ngakhale kutentha kuli pamwamba pa 150 ° C. CMC ndi mamasukidwe akayendedwe mkulu ndi digiri mkulu m'malo ndi oyenera matope ndi otsika kachulukidwe, ndi CMC ndi kukhuthala otsika ndi digiri mkulu m'malo ndi oyenera matope ndi kachulukidwe mkulu. Kusankhidwa kwa CMC kuyenera kutsimikiziridwa malinga ndi mikhalidwe yosiyanasiyana monga mtundu wamatope, malo, ndi kuya kwachitsime.

Kugwiritsa ntchito CMC mu Drilling Fluid

1. Kuchita bwino kwa zosefera zotayika komanso mtundu wa keke yamatope, kupititsa patsogolo luso loletsa kugwidwa.

CMC ndi yabwino yochepetsera kutaya madzimadzi. Kuwonjezera pamatope kumawonjezera kukhuthala kwa gawo lamadzimadzi, potero kuonjezera kukana kwa madzi a filtrate, kotero kuti kutaya kwa madzi kudzachepetsedwa.

Kuwonjezera kwa CMC kumapangitsa kuti keke yamatope ikhale yolimba, yolimba komanso yosalala, potero kuchepetsa kusokonezeka kwa kusiyana kwa kuthamanga kwa kuthamanga ndi kubowola chida chakutali, kuchepetsa mphindi yotsutsa ku ndodo yozungulira ya aluminiyamu ndikuchepetsa kuyamwa m'chitsime.

Nthawi zambiri matope, kuchuluka kwa CMC medium viscous product ndi 0.2-0.3%, ndipo kutayika kwa madzi kwa API kumachepetsedwa kwambiri.

2. Kupititsa patsogolo mphamvu yonyamula miyala komanso kukhazikika kwamatope.

Chifukwa CMC ali wabwino thickening luso, mu nkhani ya otsika kuchotsa okhutira nthaka, kuwonjezera mlingo woyenera wa CMC ndi zokwanira kusunga mamasukidwe akayendedwe chofunika kunyamula cuttings ndi kuyimitsa barite, ndi kusintha matope bata.

3. Pewani kufalikira kwa dongo ndikuthandizira kupewa kugwa

CMC kuchepa kwa madzi kuchepetsa ntchito kumachepetsa kuthamanga kwa matope a shale pakhoma la chitsime, ndipo kuphimba kwa maunyolo a CMC aatali pa thanthwe la khoma kumalimbitsa mwala ndikupangitsa kuti zikhale zovuta kupukuta ndikugwa.

4. CMC ndi wothandizira matope omwe amagwirizana bwino

CMC ikhoza kugwiritsidwa ntchito molumikizana ndi othandizira osiyanasiyana m'matope a machitidwe osiyanasiyana, ndikupeza zotsatira zabwino.

5. Kugwiritsa ntchito CMC mu simenti yamadzimadzi ya spacer

Kumanga bwino kwa simenti ndi jakisoni wa simenti ndi gawo lofunikira kuti mutsimikizire mtundu wa simenti. The spacer fluid yokonzedwa ndi CMC ili ndi zabwino zochepetsera kukana kwakuyenda komanso kumanga kosavuta.

6. Kugwiritsa ntchito CMC mumadzimadzi owonjezera

Poyesa mafuta ndi ntchito zogwirira ntchito, ngati matope olimba kwambiri agwiritsidwa ntchito, amachititsa kuti mafuta awonongeke kwambiri, ndipo zidzakhala zovuta kuthetsa kuipitsidwa kumeneku. Ngati madzi aukhondo amangogwiritsidwa ntchito ngati madzi owonjezera, kuipitsidwa kwakukulu kumachitika. Kutayikira ndi kusefera kutayika kwa madzi mu wosanjikiza wamafuta kungayambitse chotchinga chamadzi, kapena kupangitsa kuti gawo lamatope mugawo lamafuta liwonjezeke, kusokoneza kutulutsa kwamafuta, ndikubweretsa zovuta zingapo pantchitoyo.

CMC imagwiritsidwa ntchito mumadzimadzi owonjezera, omwe amatha kuthetsa mavuto omwe ali pamwambawa. Kwa zitsime zotsika kwambiri kapena zitsime zopopera kwambiri, chilinganizocho chitha kusankhidwa motengera kutayikira:

Osanjikiza otsika: kutsika pang'ono: madzi oyera + 0.5-0.7% CMC; kutayikira kwakukulu: madzi oyera + 1.09-1.2% CMC; kutayikira kwambiri: madzi oyera + 1.5% CMC.