Ụdị dị iche iche nke ndị na-egbutu PDC

Ịkwọ ụgbọ mmiri bụ ọrụ dị mkpa na ụlọ ọrụ mmanụ na gas. A na-ejikarị ibe n'ibe PDC (nke a na-akpọkwa Polycrystalline Diamond Compact bit) na usoro mkpọpu mmiri. PDC bit bụ ụdị bit nke mejupụtara otutu Polycrystalline Diamond (PCD) cutters jikọtara na bit ahụ wee bee site na nkume site n'ịkpacha ihe n'etiti ndị na-egbutu na nkume.

Onye na-egbutu PDC bụ akụkụ dị oke mkpa nke ihe ọkụkụ, na-arụkwa ọrụ nke mkpọpu ihe. Ụdị dị iche iche nke PDC cutter bụ iji zute ọnọdụ ọrụ dị iche iche. Ịhọrọ ọdịdị dị mma dị ezigbo mkpa, nke nwere ike imeziwanye arụmọrụ ọrụ gị ma belata ọnụ ahịa mkpọpu.

Ọtụtụ mgbe, anyị na-ekewa PDC cutter dị ka n'okpuru:

1． PDC flat cutters

2． PDC bọtịnụ

A na-ejikarị ndị na-egbu osisi PDC eme ihe maka ịkụ ihe n'ubi ngwuputa na mmanụ. Enwere ike iji ya na diamond core bit na PDC bearing.

Isi uru maka ndị na-egbutu PDC:

• Njupụta dị elu (porosity dị ala)

• Nnukwu ihe mejupụtara & structural homogeneity

• Akwa eyi na mmetụta nkwụsị

• Nkwụsi ike dị elu nke okpomọkụ

• Best n'ozuzu arụmọrụ dị na ahịa

PDC flat cutter dayameta sitere na 8 ruo 19mm ::

Nkọwapụta n'elu bụ maka ndị ọrụ ịhọrọ site na. N'otu oge ahụ, nkọwa dị iche iche nke ngwaahịa nwere ike ịmepụta na nhazi dịka ihe ndị ọrụ chọrọ.

Dị ka a 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 (8mm, 10mm, 13mm na 16mm) ka ha na-egwupụta n'ọkwa dị elu nke ntinye (ROP) karịa nnukwu ndị na-egbutu na ngwa ụfọdụ. Otu ngwa dị otú ahụ bụ nkume nzu dịka ọmụmaatụ. A na-eji ndị na-egbutu obere chepụta ibe n'ibe mana ọtụtụ n'ime ha nwere ike iguzogide ibu mmetụta dị elu.

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 ahụ ma ọ bụrụ na mmiri mmiri na-egwupụta ihe enweghị ike ibu mkpụ ahụ elu.

Mgbanwe nke PDC

A na-eji PDC bearing dị ka ihe mgbochi mgbochi maka moto downhole, nke a na-ejikarị na ụlọ ọrụ na-ahụ maka mmanụ na ụlọ ọrụ ụgbọ ala. Njikere PDC nwere ụdị dị iche iche gụnyere PDC radial bearing, PDC na-ebu ibu.

PDC bearings na-eguzogide ọgwụ ike iyi. E jiri ya tụnyere tungsten carbide omenala ma ọ bụ ihe ndị ọzọ siri ike alloy bearings, ndụ nke diamond bearings bụ 4 ka 10 ugboro ogologo, na ha nwere ike na-arụ ọrụ na elu okpomọkụ (ugbu a kasị elu okpomọkụ bụ 233 ° C). Sistemụ ibu PDC nwere ike ịmịnye oke ibu ruo ogologo oge, na mfu esemokwu dị ala na nzụkọ ibu ahụ na-abawanye ike igwe na-ebufe.

A na-ejikarị bọtịnụ PDC maka DTH drill bit, cone bit, na pick diamond.

A na-ejikarị igwe ndị na-egwupụta ọla edo mee ihe maka igwe na-egwuputa ihe, dị ka mkpọ ndị na-egwuputa ihe na-aga n'ihu, ụgbọ mmiri Longwall shearer, igwe na-agwụ ike nke ọwara (ntọala igwe ọta, igwe egwu egwu rotary, tunneling, trenching machine drum, na ndị ọzọ)

Bọtịnụ PDC gụnyere:

(1) PDC domed bọtịnụ: a na-ejikarị maka DTH drill bit.

(2) Bọtịnụ conical PDC: a na-ejikarị ya maka ntakịrị cone.

(3) PDC bọtịnụ parabolic: a na-ejikarị eme ihe maka igbutu inyeaka.

E jiri ya tụnyere bọtịnụ tungsten carbide, bọtịnụ PDC nwere ike melite nguzogide abrasive karịa ugboro 10.

PDC domed bọtịnụ

PDC conical cutters

PDC bọtịnụ parabolic

Ewezuga nha nkịtị, anyị nwekwara ike mepụta kwa eserese gị.

Nnọọ ka ịchọta ndị na-egbutu PDC zzbetter, ọmarịcha arụmọrụ, ịdị mma na-agbanwe agbanwe, yana uru pụtara ìhè.