Cov kua dej drilling yog muab los ntawm Qingdao Meilian Energy Co., Ltd. ua tiav drilledH90-3 zoo nrog qhov tob ntawm 4,464 meters thiab kab rov tav ntu ntev ntawm 2,269 meters. Qhov zoo siv cov yam ntxwv roj-raws li drilling kua system uas tsim los ntawm Qingdao Meilian Energy Co., Ltd.
H90-3 wua ell yog qhov tseem ceeb kab rov tav zoo thiabsim zoohauv Changqing oilfield, , Lub reservoir nyob rau hauv kab rov tav seem ntawm lub qhov dej yog nyias thiab ceev hloov, lub reservoir calcium yog cemented, thiab muaj dej rhiab heev, lub reservoirmuajav nkos interlayer.Drilling ceev tau qeeb thiab lub voj voog ntevqeeb, hydration expansion tom qab mudstone intrusion, muaj kev pheej hmoo ntawm cov phab ntsa zoo instability, kev tsim kho nyuaj. Conventional water-base drilling kua tsis tuaj yeem ua tau raws li qhov kev thov ntawm kev tsim kho kev nyab xeeb.
Txhawm rau ua kom tau raws li qhov yuav tsum tau muaj kev ruaj ntseg zoo, torque thiab kev sib txhuam txo, thiab ua tiav kev nyab xeeb thiab ceev drilling thiab kev tsim kho,pebtuam txhab xaivibroj-raws li drilling kua.Company's R & D pab neeg tau ua kom zoo dua qhov kev tsim thiab kev ua tau zoo raws li qhov tseem ceeb xws li kev ruaj ntseg hluav taws xob, roj-rau-dej piv, HTHP pom, thiab alkalinity. Ua tustorque thaum lub sij hawm drillingqistshaj 50 feem pua ntawm cov tib kab rov tav zoos qhosiv dej-raws li drilling kua, thiab tus nqi txo qis mus txog 80 feem pua, yog li ua kom qhov drilling ceev thiab ua kom tiav sai thiab du.
Kev tsim kho du ntawm lub qhov dej tau pom qhov kev sim lub hom phiaj ntawm kev tshawb nrhiav thiab kev loj hlob ntawm qhov tob tob kab rov tav zoo hauv Changqing oilfield. Nyob rau tib lub sijhawm, nws nthuav tawmdlub hom phiaj ntawm cov roj-raws li drilling kua system ntawm Meilian Energy Co., Ltd..
