1.Kachulukidwe ka perforation
Ndi chiwerengero cha perforations pa mita kutalika. Munthawi yachibadwa, kupeza pazipita kupanga mphamvu kumafuna apamwamba perforation kachulukidwe, koma kusankha perforation kachulukidwe, sangakhale wopanda malire kuonjezera osalimba, ayenera kuganizira zinthu zotsatirazi:
Kuchulukirachulukira kwa mabowo kungayambitse kuwonongeka kwa bowo.
Kuchuluka kwa dzenje ndikokulirapo, mtengo wake ndi wokwera;
Kuchulukirachulukira kwa mabowo kudzasokoneza magwiridwe antchito amtsogolo.
Pamene kachulukidwe ka pore ndi kakang'ono kwambiri, kuwonjezeka kwa zokolola kumaonekera pamene kachulukidwe ka pore akuwonjezeka. Koma kachulukidwe ka dzenje akamakula kufika pamtengo wina, zotsatira za kachulukidwe ka dzenje pa kuchuluka kwa zokolola sizikuwonekera. Zochitika zikuwonetsa kuti kachulukidwe ka dzenje ndi 26 ~ 39 mabowo / m, mphamvu yopangira idzakulitsidwa pamtengo wotsika kwambiri.
2. Bowo awiri
Ndi chizindikiro chofunika chosonyeza kukula kwa perforation. Kukula kwa perforation nthawi zambiri kumakhala pakati pa 5 mpaka 31mm (0.2 mpaka 1.23in), malingana ndi mtundu wa perforation ndi kuchuluka kwa ndalama. Ndi zipolopolo zomwezo, malo oboola olowera kwambiri amakhala aang'ono, ndipo pobowola kwambiri amakhala okulirapo. Kuchulukira kwa zida zankhondo, m'pamenenso pobowolapo kumakulirakulira.
Chinthu chinanso chomwe chimakhudza pobowo ndi chilolezo pakati pa mfuti ya perforating ndi casing. The perforating zotsatira bwino pamene perforating mfuti ali pakati pa chitsime. Pogwira ntchito yoboola, m'pofunika kuchitapo kanthu kuti mfuti ya perforating ikhale pakati pa chitsimecho.
3. Gawo
The ngodya pakati pa perforations awiri oyandikana amatchedwa gawo Angle. Gawo limakhalanso ndi zotsatira zabwino pa zokolola. Pakalipano, pali magawo asanu ndi limodzi omwe amagwiritsidwa ntchito kwambiri ndi 0 °, 45 °, 60 °, 90 °, 120 ° ndi 180 °. Mu mapangidwe a anisotropic, zokolola zimakula kwambiri pamene gawo la Angle likusintha kuchokera ku 180 ° mpaka 0 ° kapena 90 °, koma zokolola sizisintha kwambiri pamene gawo la Angle likusintha pakati pa 0 ° ndi 90 °.
Zoyeserera zambiri ndikugwiritsa ntchito kumunda zikuwonetsa kuti chitsime chamafuta chimakhala ndi zokolola zochepa kwambiri pomwe gawo la dzenje ndi 0 °. Pamene gawoli ndi 120 ° ndi 180 °, mphamvu yopangira imakhala pakati; Pang'ono pang'ono pa 45 ° gawo; Pamene gawo ndi 60 ° ndi 90 °, mphamvu yopanga ndipamwamba kwambiri
4. Perforation kulowa kuya
Zimatanthawuza kutalika kwa njira yoboola. The perforation malowedwe kuya zimatsimikiziridwa ndi mtundu wa perforation mlandu dongosolo ndi kuchuluka kwa zipolopolo. Kulowa kwamtundu wamtundu waukulu, kuya kwake ndikwatali, kuzama kolowera nthawi zambiri kumakhala 146 ~ 813mm, ndipo kuya kumawonjezeka ndikuwonjezeka kwa zida. Chiŵerengero cha zokolola za mafuta Wells chimawonjezeka ndi kuwonjezeka kwa kuya kwa perforation, koma chikhalidwe cha zokolola chimawonjezeka pang'onopang'ono, ndiye kuti, pamene kuya kwa dzenje kumawonjezeka kufika pamtengo wina, chiwerengero cha zokolola sichidzawonjezeka kwambiri.
Nthawi yotumiza: Sep-12-2023
Room 703 Building B, Greenland center, Hi-tech Development zone Xi'an, China
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