Qhov project Background
Thaum tus neeg siv khoom tau kuaj xyuas cov raj xau hauv qhov khoob khoob ntawm Well XX, lawv tau ntsib nrog cov kev sib tw ntawm qhov tseeb thiab qhov chaw ntawm qeeb thiab micro- leakage. Cov kev sib tw tshwj xeeb yog raws li nram no:
- Kev tsim kho siab nyuaj:Optical fibers yuav tsum tau khiav mus rau hauv lub qhov dej nrog rau cov casing, uas muaj cov txheej txheem nyuaj xws li cementing consolidation thiab pre- tswj nruj. Qhov no yuav tsum tau muaj cov qauv siab heev rau qhov zoo ntawm qhov chaw zoo, qhov sib txawv ntawm qhov zoo thiab txoj kab uas hla zoo, ua rau qhov kev xa mus rau qhov tsis zoo hauv cov qhov dej kab rov tav lossis cov qhov dej sib txawv heev.
- Fragile Optical Fibers:Cov fibers kho qhov muag lawv tus kheej yog cov tsis yooj yim thiab yooj yim rau microcracks los yog tawg vim stretching, dabtsi yog khoov los yog tsis tsim nyog clamping thaum lub sij hawm installation, ua rau ib tug siab ntawm - site puas tus nqi.
- Kev txheeb xyuas qhov tsis yooj yim Leak Point:Cov txheej txheem ib txwm pib tawm tsam txhawm rau txheeb xyuas qhov tseeb ntau- taw tes tawm los yog qhov tsis tu ncua tshwm sim nyob rau tib lub sijhawm, uas yuav ua rau hauv qab - tshaj tawm lossis qhov tsis zoo.
- Tsis txaus Positioning Accuracy:Distributed Temperature Sensing (DTS) cia siab rau qhov kub thiab txias gradients. Nyob rau theem pib ntawm kev xau, qhov kub sib txawv me me, ua rau muaj qhov yuam kev ntawm ± 5-10 meters. Distributed Acoustic Sensing (DAS) yog txwv los ntawm coupling txoj kev thiab sampling ncua sij hawm, nrog kev ua yuam kev feem ntau tshaj ± 20 meters.
Peb Kev daws
Txhawm rau hais txog qhov kev sib tw ntawm micro-kev kuaj pom cov pa tawm, peb tau txais ib txoj hauv kev engineering uas sib koom ua ke ntawm ob-system optical fiber ntau nrhiav tshuab ntawmDTS thiab DAS. Los ntawm - kub thiab siab - kev ntsuas kev txhaj tshuaj siab (tsuas yog txhaj rau 1.5 cubic meters ntawm 40 MPa rau 4 teev), peb tau sau cov ntsuas kub thiab cov suab nrov synchronously. Ua ke nrog cov ntaub ntawv tubing hlua, peb tau ua qhov kev txheeb xyuas kev sib raug zoo ntawm qhov kub thiab txias cov ntsiab lus thiab lub zog acoustic, ua tiav kev txheeb xyuas qhov tseeb ntawm cov dej xau thiab cov yam ntxwv channel.
Cov txiaj ntsig kawg
- Qhov tseeb qhov chaw:Lub DTS system tau kuaj pom 16 qhov sib txawv ntawm qhov kub thiab txias nce qhov tsis sib xws. Los ntawm kev sib piv nrog DAS cov dej tsaws tsag dej tsaws tsag, qhov chaw ntawm lub zog acoustic anomalies tau zoo ib yam nrog cov ntsiab lus kub tsis sib xws, uas tau lees paub tias yog cov ntsiab lus xau tubing.
- Ua rau Analysis:Cov chaw xau qhov chaw pom tau tias muaj kev sib raug zoo nrog cov tubing txuas, qhia tias cov xau tau tshwm sim los ntawm xov micro- leakage. Rau qee cov ntsiab lus liab anomaly, DAS lub zog muaj zog, tab sis tsis muaj kev sib raug zoo ntawm kev siv zog thiab qhov kub thiab txias, qhia tias cov xaim xaim me me thiab nyuaj.
- Technical Advantages:Kev sib koom ua pov thawj ntawm ob lub-system kov yeej cov kev txwv ntawm ib qho kev siv thev naus laus zis, ua kom muaj kev ntseeg siab ntawm - kev ntseeg siab ntawm cov ntsiab lus xau nyob rau hauv micro- cov dej xau thiab muab lub hauv paus raug rau kev ua haujlwm txuas ntxiv tom ntej.
Kev Ntsuam Xyuas Cov Neeg Siv Khoom
Tus neeg siv khoom tau lees paub qhov raug thiab engineering tus nqi ntawm qhov kev tshawb pom no. Lawv ntseeg hais tias qhov kev daws teeb meem tau daws qhov teeb meem kev lag luam ntawm qhov nyuaj ntawm qhov chaw ntawm micro- leakage, thiab ua kom pom qhov zoo tshaj plaws tshwj xeeb hauv kev txheeb xyuas xov micro- leakage. Nws muab kev txhawb nqa tseem ceeb rau kev xaiv cov khoom txuas txuas ntxiv thiab kev tsim kho, txhim kho kev ua tau zoo thiab kev ntseeg siab ntawm kev tswj xyuas qhov zoo.
