Nyob rau hauv tiag tiag- lub sij hawm tsim cov kev ntsuam xyuas, cov kev cov nyom xws li ncua sij hawm tau txais cov ntaub ntawv, tsis zoo reservoir characterization nyob rau hauv complex lithologies, thiab kim tshaj posts -drilling loggging khiav tseem ceeb heev ua hauj lwm hurdles nyob rau hauv lub lag luam. Ntau tus neeg teb xov tooj muaj keeb kwm cia siab rau kev txiav cov kab txuas txuas tom qab ua tiav cov ntaub ntawv, muaj kev pheej hmoo ua tiav cov ntaub ntawv poob hauv qhov tsis ruaj khov uas tawg ua ntej txoj hlua txiav tuaj yeem khiav, thiab ntxiv cov khoom tsis yog - lub sij hawm tsim khoom uas tuaj yeem tshaj 48 teev ntawm kev ntsuam xyuas. Txawm li cas los xij, niaj hnub txiav txim siab thaum drilling (LWD) cov tshuab muaj peev xwm hloov pauv qhov kev coj ua no los ntawm kev ua kom muaj kev sib txuas ua ke thiab kev ntsuam xyuas kev tsim qauv yam tsis muaj sijhawm ntxiv.
To taub LWD Measurement Principles
Logging thaum drilling integrates advanced ntsuas sensors ncaj qha mus rau hauv lub bottomhole los ua ke, tso cai tsim cov ntaub ntawv nrhiav tau thaum lub sij hawm drilling txheej txheem yam tsis muaj kev cuam tshuam kev khiav hauj lwm. Cov kev ntsuas tseem ceeb suav nrog gamma rays thiab resistivity sensors rau tiag tiag -lub sij hawm lithology qhia thiab hydrocarbon indications, nrog rau cov cuab yeej niaj hnub ua kom pom kev rhiab heev ntawm 0 txog 500 API units thiab ntsuas qhov tseeb nyob rau hauv 5 feem pua ntawm tag nrho cov kev khiav hauj lwm. Density and neutron porosity sensors provide bulk density measurements with accuracy of 0.01 grams per cubic centimeter and neutron porosity within 1 porosity unit, both essential for quantitative reservoir quality assessment.
Gamma Ray: 0 txog 500 API rhiab heev nrog 5 feem pua qhov tseeb rau kev txheeb xyuas lithology.
Ceev: 0.01 g / cm3 raug rau porosity thiab reservoir kev ntsuam xyuas.
Sonic: 6-nti tob daws teeb meem rau geomechanical vaj tse qauv.
Key Performance Specifications
Tuam Tshoj Vigor LWD cov tshuab ua tiav cov ntaub ntawv txhim khu kev qha kis tau tus nqi txog li 12 khoom ib thib ob los ntawm av nkos-pulse telemetry, muab cov ntaub ntawv tsim tawm tas mus li ntawm qhov chaw yam tsis tas yuav tsum tau xaim laum yeeb nkab lossis electromagnetic repeaters. Lub pob sensor ua tiav yog ntsuas rau kev ua haujlwm kub txog 175 degrees Celsius thiab siab txog 30,000 psi, ua cov cuab yeej no tsim nyog rau qhov xav tau tshaj plaws hauv qhov tob thiab HPHT zoo ib puag ncig. Cov cuab yeej tsim qauv tso cai rau kev hloov pauv ntawm thaj chaw nrawm, ua kom muaj kev sib pauv hloov pauv thiab kev saib xyuas hauv qab 30 feeb yam tsis muaj kev hloov kho hauv pem teb.
Deepwater Field Application
Hauv kev ua haujlwm hauv dej tob hauv Gulf of Mexico, cov ntaub ntawv tiag tiag -lub sijhawm LWD tau ua rau ib tus neeg ua haujlwm tswj hwm txoj haujlwm zoo nyob rau hauv 5- ko taw lub hom phiaj qhov rais thaum drilling 4,000- ko taw lateral seem los ntawm cov txheej txheem ntsev thiab cov pob zeb nyias. Cov ntaub ntawv ntsuas kev tsim kho txuas ntxiv tso cai rau kev txiav txim siab geosteering txhua 10 ko taw raws li lub sijhawm muaj kev tiv thaiv thiab gamma ray tiam sis, txo qhov yuav tsum tau ua rau lub siab tsav qhov los ntawm 60 feem pua thiab txuag kwv yees li 3 hnub ntawm lub sijhawm rig hauv ib qhov dej ntawm cov hnub dej tob tshaj $ 500,000. Qhov ua tau zoo ntawm qhov kev tso kawm raug tau txhim kho cov nyiaj tau los ntawm 25 feem pua piv rau cov qhov dej offset drilled yam tsis muaj kev taw qhia LWD.
Kev xaiv Sensor rau txawv Reservoirs
Xaiv qhov tsim nyog LWD sensor suite nyob ntawm seb lub hom phiaj kev ntsuas qhov dej tshwj xeeb. Rau cov pa clastic reservoirs, ib qho yooj yim gamma rays, resistivity, ceev, thiab neutron pob muab cov ntaub ntawv txaus rau porosity, lithology, thiab hydrocarbon saturation kev txiav txim. Rau complex carbonate reservoirs xav tau pore yam characterization, ntxiv sonic thiab nuclear magnetic resonance ntsuas raug pom zoo. Cov neeg ua haujlwm tsom rau cov roj nyias nyias tau txais txiaj ntsig los ntawm kev sib sib zog nqus - nyeem azimuthal resistivity sensors uas muab kev ceeb toom ntxov ntawm kev mus cuag cov dej sib cuag mus txog 15 ko taw los ntawm qhov dej.
Kaw lub voj: Integrated Formation Evaluation
Kev sib koom ua ke tiag -sijhawm LWD cov ntaub ntawv nrog kev ntsuas qhov chaw nkag thiab kev sib txuas ntawm cov xov hlau ua rau cov neeg ua haujlwm paub txog kev txiav txim siab drilling uas ua kom zoo rau qhov chaw zoo thiab ua kom muaj kev sib cuag ntawm lub pas dej. Qhov kev sib koom ua ke no tau pom tias muaj kev txhim kho zoo ib yam hauv net- rau- qhov piv ntawm 15 mus rau 25 feem pua piv rau cov qauv kev drilling. Ua ke nrog tiag tiag -lub sij hawm pore siab twv kwv yees thiab geomechanical qauv, cov neeg ua haujlwm tuaj yeem txo qhov kev pheej hmoo ntawm kev tsis ruaj khov txog li 30 feem pua thaum ua kom zoo dua qhov xaiv lub rooj zaum.
Yog xav paub ntxiv, thov hu rau Tuam Tshoj Vigor ntawm info@vigorpetroleum.com lossis hu rau +0086 29 81161513.
