Ib leeg thiab Ob Chav Valve Float Khau

Ib leeg thiab Ob Chav Valve Float Khau yog ntsia rau hauv qab ntawm txoj hlua thiab coj txoj kev khiav hauv lub qhov. Cov khau ntab muaj xws li ib qho - txoj kev valve, lub valve tuaj yeem tuav lub siab ntawm ib qho kev taw qhia.

Ib puag ncig profile tivthaiv txuas rau lub downhole kawg ntawm ib txoj hlua casing. Ib qho tseem ceeb kos valve hauv cov khau ntab tiv thaiv kev thim rov qab, lossis U- tubing, ntawm cov cement slurry los ntawm lub annulus mus rau hauv lub casing los yog cov dej ntws ntawm cov dej hauv qhov dej mus rau hauv txoj hlua casing thaum nws khiav. Cov khau float tseem coj lub casing mus rau qhov chaw ntawm lub qhov kom txo qis pob zeb ledges los yog washouts thaum lub casing yog khiav mus rau hauv lub qhov dej. Cov khau float txo qhov hnyav ntawm nuv.

Nrog tswj los yog ib feem sau - nce raws li txoj hlua khiav, txoj hlua casing tuaj yeem ntab mus rau hauv txoj haujlwm, zam qhov xav tau rau lub rig nqa tag nrho qhov hnyav ntawm txoj hlua casing. Cov sab nrauv ntawm cov khau ntab yog ua los ntawm cov hlau thiab feem ntau phim cov casing loj thiab cov xov, txawm tias tsis tas yuav yog qib casing. Sab hauv (nrog rau lub taper) feem ntau yog ua los ntawm cov cement lossis thermoplastic, vim tias cov khoom siv no yuav tsum tau drilled yog tias lub qhov dej yuav tsum tau tob tshaj qhov taw tes.

●Float nkawm khau pab kom du drilling;
● Cov dej ntws loj dua;
● Kev taw qhia zoo qhib siab<300PSI[2.0MPa];
● Kev ntsuas siab siab tshaj plaws 7,250PSI [50.0MPa];
● Qhov ntsuas kub siab tshaj plaws ntawm 400℃F.

Nco tseg: Peb lub tuam txhab tuaj yeem tsim thiab tsim cov khoom lag luam uas ua tau raws li cov neeg siv khoom xav tau thiab ntawm - qhov kev siv ntawm qhov chaw. Peb tuaj yeem ua tau raws li cov neeg siv khoom xav tau thiab tuaj yeem hloov pauv cov khoom lag luam los ntawm cov khoom lag luam zoo - paub thoob ntiaj teb hom. Peb lub tuam txhab lav siab - cov khoom zoo, lub voj voog xa khoom sai, ntim khoom raws li cov qauv xa tawm, thiab raws sijhawm tom qab- kev muag khoom. Yog xav paub ntxiv, thov sab laj nrog lub Hoobkas. Peb kuj txais tos cov neeg muas zaub tshiab thiab qub tuaj xyuas thiab coj peb.