IADC Tricone Bit Classification Codes System

IADC Tricone Bit Classification Codes System

Hoʻohana pinepine ʻia ka IADC roller cone drilling bit classification chart e koho i ka bit maikaʻi loa no kahi noi. Aia i loko o kēia mau pakuhi nā ʻāpana i loaʻa mai nā mea hana nui ʻehā o nā bits. Hoʻokaʻawale ʻia nā bits e like me ke code International Association of Drilling Contractors (IADC). Ua wehewehe ʻia ke kūlana o kēlā me kēia bit ma ka pakuhi e nā helu ʻekolu a me hoʻokahi ʻano. ʻO ke kaʻina o nā huaʻōlelo helu e wehewehe i ka "Series, Type and Features" o ka bit. ʻO ke ʻano hou e wehewehe i nā hiʻohiʻona hoʻolālā hou.

IADC CODE REFERENCE

Helu mua:

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.

Helu ʻElua:

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

Na kēia huahelu e hoʻokaʻawale i ka bit e like me ke ʻano o ka bearing/seal a me ka pale ʻaʻahu kūikawā e like me kēia:

1.Standard hāmama wili wili bit

2.Standard hāmama bit no ka ea wili wale

3.Standard hāmama hāmama bit me ka gauge pale i hoakaka ia e like me

hoʻokomo ʻia ka carbide i ka kuʻekuʻe wāwae o ka cone.

4.Roller i hoʻopaʻa ʻia i ka lawe ʻana i ka bit

5.Roller i hoʻopaʻa ʻia i ka bit bearing me nā carbide inserts ma ka kuʻekuʻe wāwae o ka cone.

6.Journal i hoʻopaʻa ʻia i ka lawe ʻana i ka bit

7.Journal i hoʻopaʻa ʻia i ka bit bearing me nā carbide inserts ma ka kuʻekuʻe wāwae o ka cone.

Huahelu ʻEhā/Pepa Hoʻohui:

Hoʻohana ʻia nā code leka ma ke kūlana helu ʻehā e hōʻike i nā hiʻohiʻona hou.

A -- Palapala ea

B -- Sila Kaumaha Kuikawa

C -- Mokuwaena Waena

D -- Mana hoʻokaʻawale

E -- Nā Mokulele Hoʻonui

G -- Pale ana keu

H -- Noi Horizontal

J -- Hoihoi Mokulele

L -- Lug Pads

M -- Noi kaa

R -- Nā wiliwili i hoʻoikaika ʻia

S -- Bit Niho maʻamau

T -- ʻElua mau ʻāpana Cone

W -- Hoʻonui ʻia ke ʻoki ʻana

X -- Hookomo Kukui

Y -- Hookomo Conical

Z -- Nā ʻano hoʻokomo ʻē aʻe

ʻO nā huaʻōlelo "māmā" "medium" a me ka "paʻakikī" hoʻokumu ʻia he ʻano ākea ākea o ka papa honua e komo nei. Ma keʻano laulā, hiki ke wehewehe ʻia nā ʻano pōhaku i loko o kēlā me kēia ʻāpana penei:

ʻO nā ʻano palupalu nā pālolo i hoʻohui ʻole ʻia a me ke one.

Hiki ke wili ʻia kēia mau mea me kahi WOB haʻahaʻa (ma waena o 3000-5000 lbs/in o ke anawaena bit) a me RPM kiʻekiʻe (125-250 RPM).

Pono e hoʻohana ʻia nā kahe kahe nui e hoʻomaʻemaʻe pono i ka lua mai ka manaʻo e kiʻekiʻe ka ROP.

ʻO ka nui o ka kahe kahe ʻana naʻe ke kumu o ka holoi ʻana (e nānā i ka holoi ʻana i ka paipu drill). Manaʻo ʻia nā kahe kahe o 500-800 gpm.

E like me nā ʻano bit a pau, ʻo ka ʻike kūloko ka mea nui i ka hoʻoholo ʻana i nā ʻāpana hana.

Hiki ke hoʻokomo ʻia nā shales, gypsum, shaley lime, ke one a me ka pōhaku lepo. 

ʻO ka maʻamau, lawa ka WOB haʻahaʻa (3000-6000 lbs/in o ke anawaena bit).

Hiki ke hoʻohana ʻia nā māmā holo kiʻekiʻe i nā shales akā pono ka paʻakai i ka wikiwiki lohi (100-150 RPM).

Hiki ke wili ʻia nā pōhaku lepo palupalu i loko o kēia mau ʻāpana.

Hoʻohui hou ʻia nā kahe kahe kiʻekiʻe no ka hoʻomaʻemaʻe puka

Hiki i nā hana paʻakikī ke komo i ka limestone, anhydrite, ke one paʻakikī me nā kaha quartic a me ka dolomite.

He mau pōhaku kēia o ka ikaika compressive kiʻekiʻe a loaʻa nā mea abrasive.

Pono paha ka WOB kiʻekiʻe (e laʻa ma waena o 6000-10000 lbs/in o ke anawaena bit.

Ma ka laulā, ho'ohana 'ia ka māmā holo lohi (40-100 RPM) no ke kōkua 'ana i ka hana wili.

ʻOi aku ka maikaʻi o ka wili ʻia ʻana o nā papa quartzite a i ʻole chert me ka hoʻokomo a i ʻole nā ​​ʻāpana daimana e hoʻohana ana i ka RPM kiʻekiʻe a me ka WOB liʻiliʻi. ʻAʻole koʻikoʻi ka nui o nā kahe i loko o ia mau ʻano.