7 Daim duab qhia txog kev txuas ntxiv rau lub neej ntawm PDC Laum Khoom

1. Thov lub cev yuag maj maj kom tsis txhob cuam tshuam kev cuam tshuam  

Qhov teeb meem: txawm hais tiasPDC Cuttersyog qhov nyuaj heev, lawv tau cuam tshuam tsawg. Daim ntawv thov hluav taws kub tam sim ntawd tuaj yeem ua rau cov ntawv ntim cauv.  

Kev daws:  

Siv ib daim ntawv thov "kauj ruam-kauj ruam-theem hnyav": Pib nrog 30%, tom qab ntawd nce 20% txhua 10 feeb kom txog thaum ncav tes.  

Saib xyuas Torque hloov pauv (ntawm MWD / LWD cov cuab yeej). Yog tias kev hloov pauv tshaj li 15%, txo qhov wob.  

Scienceicific: Qhov kev nthuav dav los ntsuas cov coefficients ntawm lub pob zeb diamond txheej sib txawv sib txawv, ua rau microcracks sib txawv raws li kev cuam tshuam loads (SPE 168973 kev kawm).  

 2. Optimize RPM thiab Wob txuam  

Qhov Teeb Meem: High RPM + Tsawg Wob Ua Rau Cutters Mus Rau Cutter Yuav "Grind" Tsis yog "Shear" Qhov Tsim Tawm "Kev Tsim Tsa. Tsawg RPM + siab WOB yuav ua rau cov kab kos plam.  

Kev daws:  

Xa mus rau "lub zog tshwj xeeb (SE)" mis:  

  Se = \ frac {wob \ sij hawm rpm} {rop \ sij hawm d ^ 2}  

  (ROP: Tus nqi ntawm kev nkag mus, D: Inchit)  

  Kho RPM / WOB yog tias cov tseem ceeb sawv tsis zoo.  

Mos formations: High RPM + MEDIUM-tsawg WOB (E.G., 60 -80 RPM + 8-12 kLBS).  

Kev Tsim Nyog: Tsawg RPM + Siab WOB (E.G., 30-50 RPM + 15-20 KLBS).  

 3. Tswj Drilling cov kua dej los tiv thaiv kev ua pob & thermal kev puas tsuaj  

Qhov Teeb Meem: Cov xuab zeb siab xuab zeb lossis qis viscosity hauv cov kua dej drilling tuaj yeem ua rau:  

Cuttings tsub zuj zuj (me ntsis pob khoom)→ Tsis txaus txias→ Thermal kev txwv ntawm cutters.  

Cov kev ntws ntws tawm tsam lub cev me ntsis.  

Kev daws:  

Tswj cov kua dej tawm tau pom tseeb (yp) ntawm 15-25 lb / 100ft² Rau kev tsim nyog thauj khoom zoo.  

Siv nano-teev tus bridging tus neeg sawv cev (piv txwv li, sio₂ Hais) kom txo qis balling (OTC 28921 sim cov ntaub ntawv).  

Saib xyuas qhov hluav taws xob qhov cub; yog tshaj 150°C, nce ntws ntws lossis ntxiv cov roj nplua ceev heev.  

 4. Zam kev yuam kev drilling hauv interbedded  

Qhov Teeb Meem:PDC khoomNyob rau hauv lwm qhov nyuaj / mos tsim (E.g., SAND-SHATE SQUARENCENCES) yog qhov ua rau yav tom ntej, ua kom lub ntsej muag hnav lossis tawg cutters. 

Kev daws:  

Txheeb xyuas cov cav zoo ua ntej kom paub cov cheeb tsam interbedded.  

Txo cov rop los ntawm 20% thiab hloov mus rau kev tsis tu ncua wob hom yog tias torque tov yog nquag.  

Siv Hybrid Bit tsim (E.G., thaub qab txiav) rau kev txhim kho kev cuam tshuam tsis kam.  

 5. Ua cov kev mus ncig ua si kom huv si  

Qhov Teeb Meem: Txiav cov tuam txhab tsim hauv qab coj mus rov txiav, txo qis kev ua haujlwm thiab ua kom ntsuas ntsuas ntsuas.  

Kev daws:  

Kev taug kev luv luv (rau cov khau dab) txhua 150-200 metrers drilled.  

Sib tw ncig cov kua dej rau tsawg kawg 2 lub voj voog ua ntej rub tawm, kom pom kev zoo nkauj (txheeb xyuas nrog lub txaj cuttings txaj).  

 6. Txheeb xyuas thiab txo qis "me ntsis dulling" kev tsim  

Qhov teeb meem: nyob rau hauv cov qauv breittle nrog> 40% quartz cov ntsiab lus, pdc tej zaum yuav "spatural" (tig tsis muaj kev nkag mus).  

40% quartz cov ntsiab lus, pdc tej zaum yuav "spatural" (tig tsis muaj kev nkag mus).  

Kev daws:  Hloov mus rau tsis-ntiaj tebPDC khoom

(E.g., Ax-puab lossis conical cutter) kom tau kev sib koom tes zoo.  

Txau cov kua muag li drilling cov kua dej kom ib ntus microfractures thiab txhim kho cuttings tshem tawm.  

 Yog tias skating tseem ceeb rau> 30 feeb, rub tawm thiab hloov nrog cov menyuam lub khob cones lossis impregnated me ntsis.  

30 feeb, rub tawm thiab hloov nrog cov menyuam lub khob cones lossis impregnated me ntsis.  

7. Ua raws li cov txheej txheem tripping kom tiv thaiv kev puas tsuaj tshuab  

Qhov teeb meem: kev sib tsoo nrog casing lossis muaj phab ntsa zoo tuaj yeem ua pob zeb diamond txheej.  °Kev daws:  

Txwv tsis pub mus rau

10

/ 30m.  – Siv cov tiv thaiv me me (piv txwv li, xov cov khoom siv roj teeb) thaum khaws cia.  Tshaj tawm rau 10 feeb ua ntej mus txog hauv qab kom tshem tawm kev txiav txim siab cuttings.  

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PDC khoom

 Koj txoj kev khiav nrawm nrawm pib nrog peb txoj kev txhawb nqa kev tshawb fawb! Peb tsis tsuas yog muab cov ntaub ntawv PDC ua haujlwm siab tab sis kuj muab cov ntaub ntawv tshwj xeeb pob:

 1. Cov tswv yim ntse parameter: muaj wob / rpm sib txuam matrices rau 7 qhov kev ua haujlwm, ua rau koj xauv qhov kev ua haujlwm zoo hauv 30 vib nas this.

 2. Tiv thaiv kev daws teeb meem cov tsev qiv ntawv:

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