Kev ua haujlwm ntawm PDC cutters

Kev tshawb fawb thiab kev loj hlob ntawm PDC cutters tau tsim nyob rau hauv ntau lub teb chaws nyob rau hauv 1970s. Tus neeg sawv cev yog "stratapax" los ntawm GE lub tuam txhab, "syndrill" los ntawm lub tuam txhab DeBeers, thiab "Claw Cutter" los ntawm Sandvik.

Kev ua tau zoo ntawm PDC cutters saum toj no, tsis muaj teeb meem hauv kev hnav tsis kam, cuam tshuam toughness, lossis thermal stability, txhua tus sawv cev rau lub ntiaj teb qib siab nyob rau lub sijhawm ntawd.

Kev ua haujlwm ntawm PDC cutter feem ntau yog hais txog cov ntsuas hauv qab no:

1. Hnav tsis kam (tseem hu ua hnav piv),

2. Kev tiv thaiv kev cuam tshuam toughness (joule),

3. Thaum tshav kub kub stability

Tom qab lub sij hawm loj ntawm kev ntsuam xyuas rau PDC cutter, peb pom cov theem ntawm PDC cutters hauv peb lub teb chaws yog raws li hauv qab no:

Qhov nruab nrab xyoo 1990 txog 2003: hnav tsis kam yog 8 txog 120,000 (10 mus rau 180,000 txawv teb chaws);

Qhov cuam tshuam toughness yog 200 ~ 400 j (ntau tshaj 400 j txawv teb chaws).

Qhov kev hloov pauv hauv thermal stability yog: tom qab sintering ntawm 750 ° C (nyob rau hauv qhov txo qis), qhov hnav piv tau pom tias nce los ntawm 5% mus rau 20% rau qee cov tuam txhab lag luam hauv tsev, thiab qhov cuam tshuam tsis zoo tsis muaj qhov hloov pauv loj. Qee cov tuam txhab lag luam tau poob qis ntawm kev hnav piv thiab tiv thaiv kev cuam tshuam toughness.

Txhawm rau ua kom tiav, qhov nyuaj, hnav tsis kam, cuam tshuam lub zog, thiab thermal stability ntawm peb lub teb chaws PDC cutters tau los txog thiab mus txog qib siab thoob ntiaj teb, tso lub hauv paus rau kev khawb ntxiv rau hauv cov pob zeb nruab nrab nyuaj nrog PDC cutters.

Peb hu rau PDC cutter nrog siab hardness, siab hnav tsis kam, siab cuam tshuam toughness, thiab siab thermal stability ntawm plaub-siab PDC cutters. Drilling nrog high-zoo PDC cutters yuav tsav qhov kev loj hlob ntawm drilling tej yaam num

Cov txiaj ntsig ntawm drilling mos mus rau nruab nrab-nyuaj pob zeb formations, tshwj xeeb tshaj yog nyuaj pob zeb formations, los ntawm kev siv ib tug composite laum me ntsis yog:

1. Lub efficiency ntawm pob zeb crushing yog zoo heev

2. Kev ua haujlwm siab thiab ua kom lub sijhawm siv sijhawm luv

3. Txhawb kev rov ua dua tshiab ntawm cov khoom siv drilling.

4. Kev siv cov khoom zoo PDC cutters txhawb qhov kev hloov ntawm cov qauv ntawm cov pob zeb diamond me ntsis thiab tsim cov hydraulic tsis.

Yog tias koj txaus siab rau cov khoom lag luam tungsten carbide thiab xav paub ntau ntxiv thiab cov ntsiab lus, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa mus rau US MAIL hauv qab ntawm nplooj ntawv.