I-IADC Tricone Bit Classification Systems Systems

I-IADC Tricone Bit Classification Systems Systems

I-IADC roller cone drilling bit iitshati zohlelo zisoloko zisetyenziswa ukukhetha eyona isuntswana kwisicelo esithile. Ezi tshathi ziqulathe amasuntswana akhoyo kubavelisi abane abakhokelayo bamasuntswana. Amasuntswana ahlelwa ngokwekhowudi ye-International Association of Drilling Contractors (IADC). Indawo yebit nganye kwitshathi ichazwa ngamanani amathathu kunye nomlinganiswa omnye. Ukulandelelana koonobumba bamanani kuchaza "uthotho, uhlobo kunye neempawu" zebit. Uphawu olongezelelweyo luchaza iimpawu zoyilo ezongezelelweyo.

I-IADC CODE REFEREENCE

Idijithi yokuqala:

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.

Idijithi yesiBini:

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

Eli nani liza kuhlela isuntswana ngokohlobo lokuthwala/lokutywina kunye nokhuseleko olukhethekileyo lwegeyiji yokunxiba ngolu hlobo lulandelayo:

1.Standard open bearing roller bit

2.Standard open bearing bit yokomba umoya kuphela

3.Standard open bearing bit with gauge protection echazwa njenge

i-carbide ifaka kwisithende sekhoni.

4.I-roller etywiniweyo kunye ne-bearing bit

I-5.I-roller etywiniweyo yokuthwala i-bit kunye nokufakwa kwe-carbide kwisithende se-cone.

6.Ijenali etywiniweyo enebhithi yokuthwala

7.Ijenali etywiniweyo yokuthwala ibhithi efakwe i-carbide kwisithende sekhowuni.

Idijithi yesine/Ileta eyoNgezelelweyo:

Ezi khowudi zoonobumba zilandelayo zisetyenziswa kwindawo enamanani esine ukubonisa iimpawu ezongezelelweyo:

A -- isicelo somoya

B -- Itywina eliQinisekileyo

C --Jet yeZiko

D -- Ulawulo lokutenxa

E -- Jets ezongeziweyo

G -- Ukhuseleko lwegeyiji eyongezelelweyo

H -- Usetyenziso oluthe tye

J -- Ukuphambuka kweJet

L -- iiPads

M -- Isicelo Motor

R -- iiwelds ezomeleziweyo

S -- iBit yezinyo elisemgangathweni

T -- Amasuntswana amabini eKhowuni

W -- Isakhiwo sokusika esomeleziweyo

X -- Chisel Faka

Y -- iConical Insert

Z -- Okunye faka imilo

Amagama “othambileyo” “ophakathi” kunye “nokuqina” kukwahlulahlula okubanzi kakhulu kobume bomhlaba ongeniswayo. Ngokubanzi, iindidi zamatye ngaphakathi kudidi ngalunye zinokuchazwa ngolu hlobo lulandelayo:

Ukwakheka okuthambileyo ludongwe olungadityaniswanga kunye nesanti.

Ezi zinokuthi zenziwe nge-WOB ephantsi kakhulu (phakathi kwe-3000-5000 lbs / in of bit diameter) kunye ne-RPM ephezulu (125-250 RPM).

Amazinga aphezulu okuhamba kufuneka asetyenziswe ukucoca umngxuma ngokufanelekileyo kuba iROP kulindeleke ukuba ibe phezulu.

Amazinga okuhamba okugqithisileyo nangona kunjalo anokubangela ukuhlamba (jonga ukuhlanjululwa kwemibhobho yokomba). Amazinga okuhamba kwe-500-800 gpm ayacetyiswa.

Njengazo zonke iintlobo ze-bit, amava asekuhlaleni adlala indima enkulu ekugqibeni iiparamitha zokusebenza.

Ulwakhiwo oluphakathi lungabandakanya ishale, igypsum, i-shaley lime, isanti kunye ne-siltstone. 

Ngokubanzi i-WOB ephantsi yanele (3000-6000 lbs/in of bit diameter).

Izantya eziphezulu ezijikelezayo zingasetyenziswa kwi-shales kodwa itshokhwe ifuna isantya esicothayo (100-150 RPM).

Amatye entlabathi athambileyo nawo anokugrunjwa ngaphakathi kwezi parameters.

Kwakhona amazinga okuqukuqela aphezulu ayanconywa ukucocwa kwemingxuma

Ukwakheka okuqinileyo kunokubandakanya i-limestone, i-anhydrite, ilitye lentlabathi eliqinileyo eline-quartic streaks kunye ne-dolomite.

Lawa ngamatye anamandla acinezelayo aphezulu kwaye aqulethe izinto ezirhabaxa.

I-WOB ephezulu ingafuneka (umzekelo phakathi kwe-6000-10000 lbs/in yebit diameter.

Ngokuqhelekileyo kusetyenziswa isantya esicothayo sokujikeleza (40-100 RPM) ukunceda isenzo sokusila / sokutyumza.

Iileya eziqine kakhulu zequartzite okanye i-chert zigqwethwa kakuhle ngokufaka okanye iibhithi zedayimane usebenzisa i-RPM ephezulu kunye ne-WOB encinci. Amazinga okuqukuqela awabalulekanga ngokubanzi kulwakhiwo olunjalo.