Dth rauj ntsis Hoobkas chaw tsim khoom tus nqi muag
DTH (hauv qab lub qhov) drilling yog ib qho kev sib hloov percussive drilling.Rauj uas yog siv los tsim cov kev cuam tshuam muaj zog yog txuas rau hauv qab ntawm txoj hlua laum thiab ib lub laum me ntsis txuas rau hauv qab kawg ntawm DTH rauj.Kev txav ntawm lub piston hauv DTH rauj yog tshwm sim los ntawm kev kub siab compressed cua.Cov kev poob siab uas taug kev mus rau qhov me ntsis yog kis mus rau lub pob zeb loj los ntawm kev txiav cov npoo lossis carbide nyees khawm ntawm lub ntsis.Yog li ntawd, cov kab nrib pleb yog tsim nyob rau hauv cov pob zeb loj uas ua rau tsim cov pob zeb chips.Cuttings raug tshem tawm ntawm lub qhov los ntawm huab cua circulated los ntawm hauv qab mus rau sab saum toj kom yaug lub qhov.
Qauv | Xov txuas | OD (mm) | Rec.Hole Size | Shank Style | Ua haujlwm siab (Bar) |
CD35 | API 2 3/8" Reg | f82mm ua | φ90-φ105 | DHD 3.5 CD35 | 1.0-1.5Mpa |
CD45 | API 2 3/8" Reg | f99mm ua | φ110-φ135 | Cop 44 DHD 340 CD45 | 1.0-2.5Mpa |
CSD4 | API 2 3/8" Reg | f99mm ua | φ110-φ135 | SD4 CSD4 | 1.0-2.5Mpa |
CQL40 | API 2 3/8" Reg | f99mm ua | φ110-φ135 | QL40 CQL40 | 1.0-2.5Mpa |
cd55 ua | API 2 3/8" Reg API 3 1/2" Reg | φ125 hli | φ135-φ155 | Cop 54 DHD 350R cd55 ua | 1.0-2.5Mpa |
CSD 5 | API 3 1/2" Reg | φ125 hli | φ135-φ155 | SD5 CSD 5 | 1.0-2.5Mpa |
CQL 50 | API 3 1/2" Reg | φ125 hli | φ135-φ155 | Cop 54 QL 50 CQL 50 | 1.0-2.5Mpa |
cd65 ua | API 3 1/2" Reg | φ148 hli | φ155-φ190 | Cop 64 DHD 360 cd65 ua | 1.0-2.5Mpa |
CSD 6 | API 3 1/2" Reg | φ148 hli | φ155-φ190 | SD6 CSD 6 | 1.0-2.5Mpa |
CQL 60 | API 3 1/2" Reg | φ148 hli | φ155-φ190 | Cop 64 qw 60 CQL 60 | 1.0-2.5Mpa |
cd85 ua | API 4 1/2" Reg | φ185 hli | φ195-φ254 | Cov 84 DHD 380 cd85 ua | 1.0-2.5Mpa |
CSD 85 | API 4 1/2" Reg | φ185 hli | φ195-φ254 | SD 8 CSD 8 | 1.0-2.5Mpa |
CQL80 | API 4 1/2" Reg | φ185 hli | φ195-φ254 | qw 80 CQL80 | 1.0-2.5Mpa |
CSD 10 | API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg | φ225 hli | φ254-φ311 | SD 10 CSD 10 | 1.0-2.5Mpa |
CN 100 | API 6 5/8" Reg | φ225 hli | φ254-φ311 | NUMA 100 CN 100 | 1.0-2.5Mpa |
CSD 12 | API 6 5/8" Reg | φ275 hli | φ305-φ445 | SD 12 CSD 12 | 1.0-2.5Mpa |
Sau koj cov lus ntawm no thiab xa tuaj rau peb