IADC Tricone Bit Classification Codes System

IADC Tricone Bit Classification Codes System

Iyo IADC roller cone drilling bit classification charts inowanzo shandiswa kusarudza yakanakisa bhiti yeimwe application. Aya machati ane mabits anowanikwa kubva kune vana vanotungamira vanogadzira mabits. Iwo mabhiti akaiswa muchikamu maererano neInternational Association of Drilling Contractors (IADC) kodhi. Nzvimbo yebhiti rega rega muchati inotsanangurwa nenhamba nhatu nehunhu humwe. Kutevedzana kwenhamba dzemavara kunotsanangura iyo "Series, Type uye Zvimiro" zveiyo bit. Iyo yekuwedzera hunhu inotsanangura mamwe magadzirirwo emhando.

IADC CODE REFERENCE

First Digit:

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.

Chechipiri Digit:

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

Iyi dhijiti ichaisa iyo bhiti zvinoenderana nekubereka / chisimbiso mhando uye yakakosha geji yekudzivirira yekupfeka sezvinotevera:

1.Standard yakazaruka inotakura roller bit

2.Standard yakazaruka inobereka bhiti yemhepo yekuchera chete

3.Standard yakazaruka inobereka bhiti ine gauge kudzivirira iyo inotsanangurwa se

carbide inopinza muchitsitsinho chekoni.

4.Roller yakavharwa kubereka bhiti

5.Roller yakavharwa bearing bit ine carbide inoisa muchitsitsinho chekoni.

6.Journal yakavharwa inobereka bhiti

7.Journal yakavharwa simbi ine carbide inoisa muchitsitsinho chekoni.

Yechina Digit/Yekuwedzera Tsamba:

Aya macode anotevera anoshandiswa munzvimbo yemana yedhijitari kuratidza mamwe maficha:

A -- Mhepo application

B -- Special Bearing Chisimbiso

C --Centre Jet

D -- Kutsauka kutonga

E -- Dzakawedzerwa Jets

G -- Yakawedzera geji dziviriro

H -- Yakachinjika application

J -- Jet Deflection

L -- Lug Pads

M -- Motor Application

R -- Yakasimbiswa welds

S -- Standard Zino Bit

T -- Two Cone Bits

W -- Yakanatsiridzwa Yekucheka Mamiriro

X -- Chisel Insert

Y -- Conical Insert

Z -- Imwe pinza chimiro

Mazwi ekuti "kupfava" "pakati" uye "kuoma" kuumbwa kupatsanurwa kwezvikamu zve geological strata iri kupinzwa. Kazhinji, marudzi ematombo mukati mechikamu chimwe nechimwe anogona kutsanangurwa sezvizvi:

Maumbirwo akapfava ivhu risina kubatanidzwa nejecha.

Izvi zvinogona kucherwa neWOB yakaderera (pakati pe3000-5000 lbs/in of bit diameter) uye yakakwirira RPM (125-250 RPM).

Mahombe ekuyerera anofanirwa kushandiswa kuchenesa gomba zvinobudirira sezvo ROP inotarisirwa kunge yakakwira.

Kuwedzera kuyerera kwemazinga asi kunogona kukonzera washouts (tarisa drill pombi washouts). Kuyerera kwe500-800 gpm inokurudzirwa.

Sezvinei nemhando dzese diki, ruzivo rwemunharaunda runoita chikamu chikuru pakusarudza maitiro ekushanda.

Maumbirwo epakati anogona kusanganisira shales, gypsum, shaley lime, jecha uye siltstone. 

Kazhinji WOB yakaderera inokwana (3000-6000 lbs/in of bit diameter).

Kumhanya kwepamusoro kunogona kushandiswa mumashale asi choko inoda chiyero chinononoka (100-150 RPM).

Matombo ejecha akapfava anogonawo kucherwa mukati meaya ma parameter.

Zvakare kuyerera kwakanyanya-mazinga anokurudzirwa pakuchenesa gomba

Maumbirwo akaomarara anogona kusanganisira limestone, anhydrite, hard sandstone ine quartic streaks uye dolomite.

Aya matombo esimba rekumanikidza uye ane abrasive material.

High WOB inogona kudiwa (semuenzaniso pakati pe6000-10000 lbs/in yebit diameter.

Kazhinji inononoka inotenderera kumhanya inoshandiswa (40-100 RPM) kubatsira kukuya/kupwanya kuita.

Matunhu akaoma kwazvo equartzite kana chert anonyatso kudhiraivha nekuisa kana mabhiti edhaimani uchishandisa RPM yakakwira uye shoma WOB. Flow rates kazhinji haisi yakakosha mumaumbirwo akadaro.