IADC Tricone Bit Classification Codes System

IADC Tricone Bit Classification Codes System

Ma chart a IADC roller cone drilling bit classification nthawi zambiri amagwiritsidwa ntchito kusankha kachidutswa kabwino kwambiri pa pulogalamu inayake. Ma chart awa ali ndi ma bits omwe amapezeka kuchokera kwa opanga anayi otsogola a bits. Ma bitswa amagawidwa molingana ndi code ya International Association of Drilling Contractors (IADC). Malo a chidutswa chilichonse mu tchati amatanthauzidwa ndi manambala atatu ndi khalidwe limodzi. Kutsatizana kwa zilembo kumatanthawuza "Series, Type and Features" za bit. Chikhalidwe chowonjezera chimatanthawuza zina zowonjezera zowonjezera.

IADC KODI REFERENCE

Nambala Yoyamba:

1, 2 and 3 designate Steel Tooth Bits, with 1 for soft, 2 for medium and 3 for hard formations.

4, 5, 6, 7 and 8 designate Tungsten Carbide Insert Bits for varying formation hardness with 4 being the softest and 8 the hardest.

Nambala Yachiwiri:

1, 2, 3 and 4 help further breakdown the formation with1 being the softest and 4 the hardest.Nambala Yachitatu:

Nambala iyi imayika pang'onopang'ono molingana ndi mtundu wa kunyamula/chisindikizo ndi chitetezo chapadera chodzitchinjiriza motere:

1.Standard lotseguka kubala wodzigudubuza pang'ono

2.Standard lotseguka kubala pobowola mpweya kokha

3.Standard lotseguka kubala pang'ono ndi gauge chitetezo chimene chimatanthauzidwa ngati

carbide amayika pa chidendene cha chulucho.

4.Odzigudubuza losindikizidwa kunyamula pang'ono

5.Odzigudubuza losindikizidwa ndi kaphatikizidwe ka carbide pachidendene cha chulucho.

6.Journal yosindikizidwa ndi bearing bit

7.Journal losindikizidwa ndi kaphatikizidwe ka carbide pachidendene cha chulucho.

Chilembo Chachinayi/Chilembo Chowonjezera:

Zilembo zotsatirazi zimagwiritsidwa ntchito pa nambala yachinayi kusonyeza zina zowonjezera:

A -- Ntchito ya Air

B -- Special Bearing Chisindikizo

C - Center Jet

D -- Kuwongolera kwapatuka

E -- Ma Jets Owonjezera

G - Chitetezo chowonjezera chamagetsi

H -- Ntchito Yopingasa

J -- Kutembenuka kwa Jet

L -- Mapepala a Lug

M -- Ntchito Yamagetsi

R -- Ma welds olimbikitsidwa

S -- Standard Tooth Bit

T -- Magawo Awiri a Cone

W -- Mapangidwe Odula Owonjezera

X -- Chisel Insert

Y -- Conical Insert

Z -- mawonekedwe ena oyika

Mawu oti "zofewa" "zapakatikati" ndi "zolimba" ndizogawika kwambiri za magawo a geological omwe akulowa. Mwambiri, mitundu ya miyala mkati mwa gulu lililonse imatha kufotokozedwa motere:

Mapangidwe ofewa ndi dongo losaphatikizidwa ndi mchenga.

Izi zitha kubowoleredwa ndi WOB yocheperako (pakati pa 3000-5000 lbs/in of bit diameter) ndi RPM yapamwamba (125-250 RPM).

Kuthamanga kwakukulu kuyenera kugwiritsidwa ntchito kuyeretsa dzenje bwino chifukwa ROP ikuyembekezeka kukhala yokwera.

Kuchulukirachulukira kothamanga kungayambitsenso kutha (onani kuthamangitsidwa kwa mapaipi obowola). Mayendedwe a 500-800 gpm akulimbikitsidwa.

Monga momwe zilili ndi mitundu yonse, zokumana nazo zakomweko zimagwira gawo lalikulu pakusankha magawo ogwiritsira ntchito.

Mapangidwe apakatikati angaphatikizepo shales, gypsum, shaley laimu, mchenga ndi siltstone. 

Nthawi zambiri WOB yotsika ndiyokwanira (3000-6000 lbs/in of bit diameter).

Kuthamanga kwakukulu kungagwiritsidwe ntchito mu shale koma choko chimafuna pang'onopang'ono (100-150 RPM).

Miyala yofewa imathanso kubowoleredwa mkati mwa magawo awa.

Apanso mkulu otaya-mitengo akulimbikitsidwa kuyeretsa dzenje

Mapangidwe olimba angaphatikizepo miyala yamchere, anhydrite, mchenga wolimba wokhala ndi mizere ya quartic ndi dolomite.

Awa ndi miyala yamphamvu yopondereza kwambiri ndipo imakhala ndi zinthu zowononga.

WOB yapamwamba ingafunike (mwachitsanzo, pakati pa 6000-10000 lbs/in of bit diameter.

Nthawi zambiri kuthamanga kwapang'onopang'ono kumagwiritsidwa ntchito (40-100 RPM) kuthandiza kugaya / kuphwanya.

Magawo olimba kwambiri a quartzite kapena chert amabowoledwa bwino ndikuyika kapena ma diamondi pogwiritsa ntchito RPM yapamwamba komanso WOB yocheperako. Mayendedwe nthawi zambiri sizovuta m'mapangidwe otere.