ZITNHigh -Precision Distributed Optical Fiber Acoustic Sensing (DAS) Systemyog ib hom tshiab ntawm kev hnov tsw thev naus laus zis uas ua rau muaj kev faib tawm txuas ntxiv ntawm kev vibration thiab acoustic teb.ZITN Siab -PrecisionDistributed Temperature Sensing (DTS) siv cov yam ntxwv uas coherent Rayleigh tawg, zoo siab los ntawm nqaim -linewidth ib zaug - laser zaus nyob rau hauv ib qho optical fiber, yog rhiab heev rau strain. Ua ke nrog lub hauv paus ntsiab lus ntawm lub sij hawm-domain reflectometry, nws ua tau tiag tiag- lub sij hawm dynamic saib xyuas ntawm me me hloov pauv tshwm sim los ntawm kev co thiab acoustic teb cov ntaub ntawv nyob rau hauv ib ncig ntawm lub optical fiber. Qhov no ua rau nws pub rov qab cov ntaub ntawv acoustic teb thiab kev co hloov pauv raws li txoj kev kho qhov muag fiber ntau, muab cov txiaj ntsig zoo, rhiab, thiab txhim khu kev qha rau cov ntawv thov xws li roj av log thiab kev saib xyuas cov kav dej.
Specification Parameters
|
Qauv |
High -Precision Distributed Optical Fiber Acoustic Sensing (DAS) System ZTDAS-5000 Series |
|
Optical Fiber Hom |
9/125μm Ib leeg -Mod Optical Fiber |
|
Spatial daws teeb meem |
Tsawg dua los yog sib npaug li 1m |
|
Yam tsawg kawg Sampling Interval |
0.1m |
|
Kev ntsuas nrug |
Ntau tshaj lossis sib npaug li 10 km |
|
Zaus teb ntau |
0.1Hz-20kHz (txog rau kev ntsuas nrug) |
|
Cia Muaj Peev Xwm |
Ntau dua lossis sib npaug li 1T |
Daim ntawv thov
|
Qeb |
Xws li Hom Zoo |
Core Logging Challenges |
DASKev daws teeb meem |
|
Kev tsim tawm |
Siab -yield Flowing Oil Wells, Qws Pump Wells |
Kub mem tes (kwv dej); Phase saib xyuas & kev soj ntsuam txheej txheej ntau lawm (ntws qhov dej); Cov cuab yeej cuam tshuam & tsis yooj yim saib xyuas (cov pas nrig twj tso kua mis) |
1. Pump Condition Diagnosis |
|
Unconventional Gas (Coalbed Methane) |
CBM Drainage Wells, CBM Kab rov tav Wells |
Kev saib xyuas cov dej & roj ntau lawm, heterogeneity, ntev kab rov tav seem; Fracturing ntsuam xyuas, pas nrig twj tso kua mis cuam tshuam |
1. Gas-Kev ntsuas dej thiab kab rov tav 2. Fracturing Monitoring & Pump Diagnosis |
|
Unconventional Gas (Shale / Tight) |
Shale Gas Horizontal Wells, Natural Gas Kab rov tav Wells, Complex Natural Gas Wells |
Ultra-ntev kab rov tav seem ntau lawm profile, multi-stage fracturing ntsuam xyuas; Phase multiphase flow, wellbore cuam tshuam, flowback xyuas |
1. Tiag -Lub Sijhawm Fracturing Evaluation (Core) |
|
Txhaj Wells |
Dej Txhaum Dej, CO₂ Txhaj Wells, N₂ Txhaj Wells |
Txhaj profile, kua dej pem hauv ntej channeling, theem hloov (CO₂), corrosion, to |
1. Txhaj Point Verification & Leak Detection 2. Txhaj tshuaj/Production Profileing |
|
Gas Storage Injection -Tej qhov dej |
Gas Storage Injection -Tej qhov dej |
Bidirectional txhaj-production profile, caprock nruj, cia muaj peev xwm dynamics, wellbore kev ncaj ncees, roj-dej interface, strain stress |
1. Thaum Ntxov Caprock Leak Monitoring (Critical) |
Khoom nta
- Txhawb RAW / HDF5 raw / theem cov ntaub ntawv.
- Txhawb LAS / CSV hom ntawv FBE cov ntaub ntawv.
- Nta ntev - lub sij hawm tiag - lub sij hawm FBE tsom xam thiab tso saib ua haujlwm.
- Muab qhov zoo tshaj plaws qis - zaus vibration teb ntawm 0.1Hz-1Hz.
- Txhawb 10Gbps 10 Gigabit Ethernet chaw nres nkoj disk array, ua kom ntev -cov ntaub ntawv txuas mus ntxiv.
Case kawm
Txheej txheem cej luam
Zoo XX, lub qhov dej kab rov tav hauv Southwest Oil & Gas Field, nthuav tawm cov pa roj tsis zoo tom qab cementing ntawm ntu plaub. Gas ntws ntawm lub qhov dej mus txog 0-92 m³ / h, qhia tias muaj peev xwm casing coupling to. Thaum Lub Tsib Hlis 12, 2022, optical fiber ntau tau xa tawm los ntawm cov yeeb nkab laum mus rau 4500 m rau kev sib xyaw DTS + DAS kuaj.
Kev sib tw
Cov av nkos hnyav thiab qhov tsawg tsawg, hauv qab qhov kev kuaj pom ntawm kev xa tawm fiber ntau.
Kev kub siab downhole ua rau txoj kev sib khi uas twb muaj lawm ua tsis tiav, thiab kev xaim hluav taws xob thaum lub sij hawm rov qab ua rau fiber ntau tawg ntawm lub cuab yeej sib koom.
Txo cov av nkos tau qhia txog kev tswj kom zoo, tsis muaj cov hlua khi uas haum rau cov tubing.
Tsis muaj qhov tseeb cable qhov sib raug zoo thiab kev kuaj xyuas fiber ntau kom paub meej tias cov ntsiab lus tsis raug.
Kev daws
Siv DAS thiab DTS cov ntaub ntawv sib xyaw ua ke, acoustic thiab kub tsis xws luag nyob rau hauv lub qhov dej tau raug tshuaj xyuas kom meej nrhiav cov ntsiab lus to.
Txhais lus
Kev soj ntsuam zaus ntawm DAS cov ntaub ntawv txheeb xyuas cov channel tom qab lub casing ntawm 3815-4415 m. Plaub lub ntsiab lus xau tau lees paub ntawm qhov sib txuas ntawm cov khoom sib txuas- tshwj xeeb ntawm qhov tob ntawm 3971.2 m, 4001.2 m, thiab ob qho ntxiv.
Cim npe nrov: acoustic sensing system (das), Tuam Tshoj faib acoustic sensing system (das) manufacturers, lwm tus neeg, Hoobkas