1. Qhov ceev ntawm qhov perforation
Yog tus naj npawb ntawm cov perforations ib 'meter' ntawm qhov ntev. Nyob rau hauv ib txwm muaj xwm txheej, kom tau txais qhov siab tshaj plaws ntawm lub peev xwm tsim khoom xav tau qhov ceev ntawm perforation siab dua, tab sis thaum xaiv qhov ceev ntawm perforation, tsis tuaj yeem tsis muaj kev txwv kom nce qhov ceev, yuav tsum xav txog cov hauv qab no:
Qhov loj dhau ntawm qhov ceev tuaj yeem ua rau puas tsuaj rau lub casing.
Qhov ceev ntawm qhov loj dhau, tus nqi siab;
Qhov ntom ntawm qhov ntau dhau yuav ua rau cov haujlwm yav tom ntej nyuaj.
Thaum qhov ceev ntawm qhov pore me heev, qhov nce ntawm kev tsim khoom pom tseeb thaum qhov ceev ntawm qhov pore nce. Tab sis thaum qhov ceev ntawm qhov nce mus rau qee qhov nqi, qhov cuam tshuam ntawm qhov ceev ntawm qhov piv ntawm kev tsim khoom tsis pom tseeb. Kev paub qhia tau hais tias thaum qhov ceev ntawm qhov yog 26 ~ 39 qhov / m2, lub peev xwm tsim khoom yuav raug siab tshaj plaws ntawm tus nqi qis tshaj plaws.
2. Qhov txoj kab uas hla
Yog ib qho tseem ceeb uas qhia txog qhov loj ntawm qhov tho. Qhov loj ntawm qhov tho feem ntau yog nyob rau hauv qhov ntau ntawm 5 txog 31 hli (0.2 txog 1.23 nti), nyob ntawm seb hom tho thiab qhov ntau npaum li cas ntawm cov khoom siv. Nrog tib qhov ntau ntawm cov mos txwv, qhov perforation aperture ntawm qhov tob-nkag mus rau hauv yog me dua, thiab ntawm qhov loj-aperture perforation yog loj dua. Qhov loj dua ntawm cov mos txwv, qhov loj dua qhov perforation aperture.
Lwm yam uas cuam tshuam rau qhov qhib yog qhov sib nrug ntawm rab phom perforating thiab lub casing. Qhov cuam tshuam perforating zoo tshaj plaws thaum rab phom perforating nyob hauv nruab nrab ntawm lub qhov dej. Hauv kev ua haujlwm perforating, nws yog ib qho tsim nyog yuav tsum ua cov kauj ruam tsim nyog kom khaws rab phom perforating nyob hauv nruab nrab ntawm lub qhov dej.
3. Theem
Lub kaum sab xis ntawm ob lub perforations sib ze hu ua lub kaum sab xis theem. Lub kaum sab xis theem kuj muaj qhov cuam tshuam loj heev rau kev tsim khoom. Tam sim no, muaj rau lub sijhawm perforating feem ntau siv ntawm 0 °, 45 °, 60 °, 90 °, 120 ° thiab 180 °. Hauv kev tsim anisotropic, qhov tsim khoom nce ntxiv ntau thaum lub kaum sab xis theem hloov ntawm 180 ° mus rau 0 ° lossis 90 °, tab sis qhov tsim khoom tsis hloov pauv ntau thaum lub kaum sab xis theem hloov ntawm 0 ° thiab 90 °.
Muaj ntau qhov kev sim thiab kev siv hauv daim teb qhia tau tias lub qhov roj muaj qhov tsim tau qis tshaj plaws thaum lub qhov theem yog 0 °. Thaum lub theem yog 120 ° thiab 180 °, lub peev xwm tsim khoom nyob hauv nruab nrab; Me ntsis siab dua ntawm 45 ° theem; Thaum lub theem yog 60 ° thiab 90 °, lub peev xwm tsim khoom yog qhov siab tshaj plaws
4. Qhov tob ntawm qhov nkag mus rau hauv qhov
Hais txog qhov ntev ntawm txoj kab perforation. Qhov tob ntawm qhov perforation yog txiav txim siab los ntawm hom qauv perforation thiab qhov ntau ntawm cov mos txwv. Hom kev nkag mus tob, qhov tob nkag mus ntev, qhov tob nkag mus feem ntau yog nyob rau hauv qhov ntau ntawm 146 ~ 813 hli, thiab qhov tob nkag mus nce nrog rau kev nce ntawm cov mos txwv. Qhov piv ntawm kev tsim khoom ntawm cov roj qhov dej nce nrog rau kev nce ntawm qhov tob perforation, tab sis qhov sib txawv ntawm qhov sib piv ntawm kev tsim khoom nce maj mam, uas yog, thaum qhov tob ntawm qhov nce mus rau qee qhov nqi, qhov sib piv ntawm kev tsim khoom yuav tsis nce ntau dhau.
Lub sijhawm tshaj tawm: Cuaj hlis-12-2023
5-1203, Dahua Industrial Zone, No.2 Yunshui Road, Hi-tech development zone, Xi'an, 710065, Suav teb
86-13609153141
