Daim ntawv qhia ua tiav rau PDC Nozzle hom thiab daim ntawv thov

Hauv kev lag luam xws li roj drilling thiab kev tshawb nrhiav geological, PDC (Polycrystalline Pob Zeb Diamond Compact) nozzles tau dhau los ua cov khoom tseem ceeb kom ntseeg tau tias kev ua haujlwm zoo thiab kev ua haujlwm zoo, vim lawv cov kev hnav zoo heev, kev kub siab, thiab kev cuam tshuam. Lawv paub txog kev ua haujlwm zoo li pob zeb tawg, pob zeb tu, thiab xyaum me ntsis txias los ntawm cov dej dav hlau siab. Ntau hom PDC nozzles tsim nyog rau kev ua haujlwm sib txawv. Cov hauv qab no qhia txog lawv cov kev faib thiab cov ntawv thov sib xws.

1. Kev faib tawm los ntawm Tus Qauv Tsim Qauv

PDC nozzles feem ntau muab faib ua peb hom raws li kev tsim qauv: hom kev txhaj tshuaj ncaj qha, hom swirling, thiab hom hybrid.

Direct-injection PDC nozzles: Txais cov qauv ncaj nraim. Lub dav hlau ntws yog concentrated nrog lub zog muaj zog, uas tuaj yeem tawg cov pob zeb nyuaj. Lawv tau siv dav hauv kev ua haujlwm pob zeb nyuaj rau cov qhov dej sib sib zog nqus thiab cov qhov dej tob tob, ua kom cov pob zeb tawg ua haujlwm zoo thiab txo qis kev xyaum siv.

Swirling PDC nozzles: Nruab nrog lub kauv ntws-guiding qauv hauv. Thaum cov kua raug txhaj, ib qho rotating flow field yog tsim, uas tsis tsuas yog txhim khu kev tu lub peev xwm ntawm pob zeb cuttings nyob rau hauv qab ntawm lub qhov dej, tab sis kuj yuav txo tau lub siab fluctuations nyob rau hauv qab. Lawv yog cov tsim nyog rau drilling scenarios nyob rau hauv yooj yim collapsible formations los yog formations nrog siab xuab zeb cov ntsiab lus, tiv thaiv pob zeb txiav los ntawm accumulating thiab cuam tshuam rau drilling kev vam meej.

Hybrid PDC nozzles: Muab qhov zoo ntawm ob hom saum toj no, nrog rau ob qho tib si ncaj qha-txhaj tshuaj cuam tshuam quab yuam thiab swirling tu nyhuv. Lawv ua tau zoo tshaj plaws hauv kev ua haujlwm drilling hauv cov txheej txheem nyuaj, xws li kab rov tav zoo drilling hauv shale gas kev loj hlob. Lawv tuaj yeem sib npaug cov kev xav tau ntawm pob zeb tawg thiab pob zeb tu, txhim kho tag nrho cov drilling stability.

2. Kev faib tawm los ntawm Kev Siv Ua Haujlwm

Raws li kev ua haujlwm zoo, PDC nozzles tuaj yeem muab faib ua cov pob zeb tawg, ntxuav pob zeb, thiab cua txias.

PDC nozzles rau pob zeb tawg: Feem ntau tsim nrog loj caliber thiab siab txaus tus nqi. Lawv tawg cov pob zeb tsim los ntawm cov kua dej muaj zog thiab tsim nyog rau kev drilling hauv cov pob zeb nyuaj thiab cov pob zeb ntom ntom.

PDC nozzles rau kev ntxuav pob zeb: Tsom ntsoov rau kev ua kom zoo tshaj qhov kev faib tawm kom ntseeg tau tias pob zeb txiav raug thauj mus rau hauv av kom raws sijhawm. Lawv feem ntau yog siv rau hauv cov qauv mos los yog cov seem zoo ua rau scaling.

PDC nozzles rau cua txias: Los ntawm tsim nyog txaus channel tsim, lawv raug xa cov dej txias mus rau qhov chaw ua hauj lwm ntawm lub laum me ntsis, txo qhov kub thiab txias ua hauj lwm ntawm PDC compact thiab prolonging lub neej kev pab cuam ntawm lub laum ntsis. Lawv feem ntau yog siv nyob rau hauv high-temperature sib sib zog nqus qhov dej los yog lub sij hawm ntev nruam drilling hauj lwm.

3. Kev faib tawm los ntawm Cov Khoom Siv

Ntxiv rau, raws li cov khoom sib txawv, PDC nozzles tuaj yeem muab faib ua ob hom:PDC cov khoom siv ntshiab thiab Cov khoom sib xyaw ntawm PDC thiab cemented carbide.

Ntshiab PDC khoom nozzles:Muaj cov hardness tsis tshua muaj siab thiab pom kev hnav tsis kam, haum rau qhov chaw ua haujlwm nyuaj heev.

Composite khoom nozzles:Thaum ua kom ntseeg tau qhov hnav tsis kam, lawv txo cov nqi tsim khoom thiab tsim nyog rau cov pa ua haujlwm drilling.

Hauv kev siv cov tswv yim, nws yog ib qho tsim nyog yuav tsum xaiv hom PDC nozzle raws li cov yam ntxwv xws li qhov tob tob, tsim hardness, thiab hom kua dej kom ua kom zoo tshaj qhov drilling thiab txhim kho cov nqi. Raws li kev tshawb nrhiav roj thiab kev loj hlob mus rau kev sib sib zog nqus thiab ntau txoj kev tsim, kev tsim ntawm PDC nozzles tau tsim kho tas li. Nyob rau hauv lub neej yav tom ntej, lawv yuav txhim kho nyob rau hauv cov kev taw qhia ntawm kev hnav-resistant, ntau npaum, thiab haum rau ntau yam kev ua hauj lwm, muab kev txhawb zog kev pab cuam rau roj thiab roj.