PDC ma ọ bụ PCD DRILL BIT?Kedu ihe dị iche?
PDC drill bit pụtara Polycrystalline Diamond Cutter core bit
Olulu mmiri mbụ bụ olulu mmiri, olulu na-emighị emi nke e ji aka gwuru na mpaghara ebe tebụl mmiri na-erute n'elu, na-ejikarị mgbidi mason ma ọ bụ osisi kpuchie .
A na-eme PDC site na ijikọta ụfọdụ n'ígwé nke polycrystalline diamonds (PCD) na oyi akwa nke cemented carbide liner na elu okpomọkụ na elu nrụgide.
PDC so na ngwa ngwa diamond niile siri ike.
PCD pụtara naanị Polycrystalline Diamond: A na-eme PCD site na ịmegharị ọtụtụ kristal micro-size otu diamond na oke okpomọkụ na nrụgide dị elu.PCD nwere ezigbo mgbaji siri ike yana ezigbo nkwụsi ike, a na-ejikwa ya na-eme ihe ngwungwu ala.
PDC nwere uru nke nguzogide akwa diamond na ịdị mma nke carbide.
Anyị na-ebunye ihe mkpọpu PDC nke nwere ụdị ihe nchacha ma ọ bụ polycrystalline diamond compacts (PDC) brazed na ahụ.
A na-eme ndị na-egbutu PDC site na mkpụrụ osisi carbide na grit diamond.Okpomọkụ dị elu nke gburugburu ogo 2800 na nrụgide dị elu nke ihe dịka 1,000,000 psi na-etolite kọmpat.Otu cobalt alloy dịkwa ugbu a ma na-arụ ọrụ dị ka ihe na-akpali akpali na usoro ịmegharị ahụ.Cobalt na-enyere aka jikọta carbide na diamond.
Dị ka a na-achị n'ozuzu, nnukwu cutters (19mm ka 25mm) na-eme ihe ike karịa obere cutters.Otú ọ dị, ha nwere ike na-amụba torque mgbanwe.
E gosipụtara ndị na-egbutu obere ihe (8mm, 10mm, 13mm na 16mm) ka ha na-egwupụta ROP dị elu karịa ndị na-egbu osisi na ụfọdụ ngwa.Otu ngwa dị otú ahụ bụ nkume nzu dịka ọmụmaatụ.
Na mgbakwunye, obere ndị na-egbutu osisi na-amịpụta obere osisi ebe ndị na-egbutu osisi buru ibu.Nnukwu mbepụ nwere ike ịkpata nsogbu na ihicha oghere ma ọ bụrụ na mmiri na-egwupụta ihe enweghị ike ibu mkpụ ahụ elu.
(1) ma ọ bụ (2) Ntụpọ dị nro ma dị nro - Nhazi nke nwere ike ịkụcha ọkụ dị ka ụrọ, marl, gumbo na ájá na-adịghị edozi.
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(4) Aja ike mkpakọ dị ọkara-agafeghị oke, nzu, anhydrite na shale.
(6) Ike mkpakọ siri ike dị ọkara nke nwere aja na-abụghị ma ọ bụ ọkara nkọ, shale, lime na anhydrite.
(7) Ike mkpakọ siri ike nke nwere akwa aja ma ọ bụ siltstone dị nkọ.
(8) Nhazi siri ike siri ike ma dịkwa nkọ dị ka quartzite na nkume mgbawa ugwu.
NKWUKWU MKPỤTA PDC
Ụdị ụdị pdc dị nro dị nro (1) ruo ọkara (4) nwere otu nnukwu nha nke onye na-egbu PDC.A na-akọwapụta usoro ịkpụcha PDC n'ụzọ ndị a:
2- Nke a bit nwere ọtụtụ 19mm cutters
3 – nke a bit nwere ọtụtụ 13 mm cutters
4- Nke a bit nwere ọtụtụ 8 mm cutters
Ọnụ ego PDC
Oge nzipu: Ọgọst-31-2022