1. Packer Failures
Qhov no yog nyob rau saum toj ntawm txhua tus neeg cov npe. Kwv yees li ib feem peb ntawm tag nrho cov hauj lwm ua tiav tau khiav mus rau cov teeb meem ntim khoom ntim, thiab nws tseem phem dua hauv HPHT qhov dej -xav tias kub tshaj 177 degree, siab tshaj 70 MPa.
Vim li cas nws tshwm sim? Qee zaum tus elastomer tsuas yog tsis ua haujlwm. Tej zaum qhov kev teeb tsa tsis tau ua tiav, lossis lub pob ntim tau banged mus rau hauv. Thiab qhov cua sov thiab cua txias tas li tsis pab.
Yuav kho li cas? Pib los ntawm kev xaiv cov roj hmab zoo - siab- cov khoom siv elastomers zoo li Viton lossis HNBR ua tau zoo dua hauv cov qhov dej tawv. Ua raws li cov chaw tsim khoom teeb tsa specs, tsis muaj shortcuts. Kuaj thiab tshuaj xyuas txhua yam ua ntej nws mus downhole. Txhawm rau kom muaj kev thaj yeeb nyab xeeb ntau dua, dual - compression packer tsim tuav tau zoo dua nyob rau lub sijhawm ntev.
2. Perforating phom tsis ua hauj lwm
Perforating phom mess txog li 18% ntawm lub sijhawm. Koj tau txais misfires, tsis txaus qhov, lossis qee zaum rab phom tsuas yog tsis tawm.
Cov culpris li ib txwm? Kev sib txuas hluav taws xob tsis zoo, kev sib dhos sloppy, ib puag ncig huab cua, lossis tsuas yog tsis saib xyuas qhov tob.
Yuav ua li cas pab: Ib txwm khiav ib qho kev kuaj hluav taws xob ua ntej ua haujlwm. Ua nruj me ntsis txog kev tswj kom zoo thaum thauj khoom thiab sib dhos phom. Siv cov khoom tawg uas tuaj yeem tswj tau cov cua sov yog tias koj ua haujlwm hauv ib puag ncig gnarly. Thiab rau qhov tob, cia siab rau gamma-ray correlation- nws yog qhov tseeb dua li kev kwv yees.
3. Xuab zeb tswj qhov system tsis ua hauj lwm
Xuab zeb hauv qhov dej? Uas tua ntau lawm ceev. Kwv yees li 22% ntawm qhov dej pib muaj teeb meem xuab zeb hauv ob xyoos.
Dab tsi yog qhov tsis ncaj ncees lawm: Qee zaum qhov tsim tsis raug ntsuas kom raug, yog li qhov tsis ncaj ncees lawm pob zeb loj tuaj yeem khaws. Kev nplua nyiaj tsiv teb tsaws chaw, cov ntxaij vab tshaus ntsaws, cov khoom siv erodes, lossis chemistry mus rau sab nrog cov kua dej reservoir.
Koj tuaj yeem ua dab tsi: Txheeb xyuas qhov tsim kom huv si -paub koj cov xuab zeb loj. Mus rau cov ntxaij vab tshaus hwm uas lim zoo dua. Siv cov tshuaj kho mob xws li av nplaum stabilizers. Thiab nruab tiag- sijhawm saib xyuas xuab zeb kom koj ntes tau teeb meem ntxov.
4. Teeb meem ntawm lub tes tsho
Lub tes tsho zawv zawg yuav tsum ua kom yooj yim dua, tab sis 15% ntawm ntau- cov haujlwm hauv cheeb tsam khiav mus rau hauv lub tes tsho uas yuav tsis qhib lossis kaw.
Cov teeb meem? Cov rooj zaum pob khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khaus khau
Txhawm rau zam qhov no: Hardface lub pob lub rooj zaum nrog tungsten carbide. Ntxuav tawm lub qhov dej ua ntej koj nruab dab tsi. Saib xyuas thiab tswj lub siab precisely. Thiab siv lub tes tsho modular- kho thiab hloov pauv sai dua.
5. Wireline Tool Failures
Wireline cov cuab yeej lo los yog txiav tawm ua haujlwm li ntawm 12% ntawm kev ua tiav. Qee lub sij hawm cov kab hluav taws xob tau ncab ntau dhau thiab ua tsis tiav, lossis cov khoom siv hluav taws xob tso tseg, lossis cov cuab yeej tsuas yog ua tsaug rau qhov tsis zoo geometry lossis lub roj tsis zoo.
Yuav ua li cas kom khiav: Saib xyuas qhov nro ntawm lub sijhawm, siv cov khoom sib txuas siab - zoo, thiab tsis txhob hla lub qhov dej zoo. Tshwj xeeb lubricants rau cov cuab yeej downhole ua qhov sib txawv.
Cov kev sib tw hauv cheeb tsam thiab lawv cov kev kho
North American Shale
Ntawm no, nws yog txhua yam hais txog qhov siab -siab fracs, kev hloov pauv sai, thiab cov cai nruj ib puag ncig.
Dab tsi ua haujlwm: Dissolvable frac plugs txo cov nqi cuam tshuam. Automated systems pab kom tiav cov hauj lwm sai dua. Thiab hloov mus rau dej-raws li, biodegradable kua ua kom cov khoom ua raws thiab huv.
Deepwater Offshore
Cov qhov dej no mus dhau 10,000 ko taw -qhov tob heev, muaj xwm txheej heev. (Ntau ntxiv ntawm cov kev cov nyom thiab kev daws teeb meem tom ntej.)
Yog tias koj xav khaws cov dej hauv online thiab lub sijhawm poob qis, koj xav tau cov cuab yeej zoo, kev npaj tsim nyog, thiab nruj me ntsis saib xyuas kom meej. Nws tsis yooj yim, tab sis nws them tawm.