總成 中心鉆頭 擴孔式
1.啟動鉆具,擴孔塊從中心鉆頭上的滑槽滑出,向四周打開,形成
擴孔范圍,從而帶動管靴和跟管往下跟進;
2.到達基巖時,將鉆具上提,擴孔塊收攏后,可將鉆具從孔底提出;
3.進行下一步施工。
|
A |
E |
C |
D |
沖擊器 |
|
編碼 |
跟管 外徑 |
跟管壁厚 |
擴孔尺寸 |
管靴內孔最小直徑 |
所配沖擊器 |
所配鉆桿 |
KB140 |
168 mm (6.6”) |
13-19 mm (0.51”)-(0.75”) |
184 mm (7.25”) |
140 mm (5.5”) |
DHD 350 QL 50 / SD-5 |
76, 89 mm (3”), (3.5”) |
KB150 |
178 mm (7”) |
13-19 mm (0.51”)-(0.75”) |
194 mm (7.64”) |
150 mm (5.90”) |
DHD 350/360 QL50/60,SD5/6 |
76, 89 mm (3”), (3.5”) |
KB165 |
193 mm (7.6”) |
13-20 mm (0.51”)-(0.78”) |
206 mm (8.11”) |
164 mm (6.45”) |
DHD 360 QL 60, SD-6 |
89, 114 mm (3.5”),(4.5”) |
KB180 |
219 mm (8.62”) |
13-20 mm (0.51”)-(0.78”) |
234 mm (9.2”) |
182 mm (7.16”) |
DHD 360 QL 60, SD-6 |
89, 114 mm (3.5”),(4.5”) |
KB210 |
244 mm (9.6”) |
13-20 mm (0.51”)-(0.78”) |
260 mm (10.25”) |
210 mm (8.25”) |
DHD360/380 QL-60/80, SD-6/8 |
114 mm (4.5”) |
KB240 |
273 mm (10.75”) |
16-20 mm (0.63”)-(0.78”) |
305 mm (12”) |
240 mm (9.45”) |
DHD 380 QL 80 / SD-8 |
114,127mm (4.5”), (5”) |
KB280 |
323 mm (12.7”) |
13-22 mm (0.51”)(0.86”) |
348 mm (13.7”) |
284 mm (11.2”) |
DHD 380 QL-80 – SD-8/10 |
127 mm (5”) |
KB365 |
406 mm (16”) |
18-24 mm (0.70”)-(0.94”) |
440 mm (17.32”) |
364 mm (14.33”) |
DHD 112 QL 120, SD-10/ 12 |
127,140mm (5”), (5.5”) |
KB410 |
457 mm (18”) |
18-24 mm (0.70”)-(0.94”) |
488 mm (19.2”) |
413 mm (16.25”) |
DHD 112 QL-120/200, SD-15 |
127,140mm (5”),(5.5”) |
KB460 |
508 mm (20”) |
18-24 mm (0.70”)-(0.94”) |
538 mm (21.2”) |
464 mm (18.26”) |
DHD 112S QL 120/200, SD-15/18 |
140 mm (5.5”) |
KB510 |
558 mm (22”) |
18-24 mm (0.70”)-(0.94”) |
590 mm (23.2”) |
514 mm (20.2”) |
DHD 112S QL 120/200, SD-15/18, N180 |
140 mm (5.5”) |
KB560 |
610 mm (24”) |
18 - 24 mm (0.70”)-(0.94”) |
642 mm (25.25”) |
566 mm (22.3”) |
QL 200, SD-18, NUMA 180 |
140, 168mm (5.5”),(6.6”) |
KB615 |
660 mm (26”) |
18 - 24 mm (0.70”)-(0.94”) |
694 mm (27.3”) |
615 mm (24.2”) |
QL 200, SD-18 NUMA 180/240 |
168mm (6.6”) |
KB665 |
711 mm (28”) |
18 - 24 mm (0.70”)-(0.94”) |
745 mm (29.3”) |
665 mm (26.2”) |
QL 200, SD-18 NUMA180/240 |
168 mm (6.6”) |
KB715 |
762 mm (30”) |
18 - 24 mm (0.70”)-(0.94”) |
798 mm (31.4”) |
716 mm (28.2”) |
QL 200, SD-18 NUMA 180/240 |
168mm (6.6”) |
KB815 |
863 mm (34”) |
18 - 24 mm (0.70”)-(0.94”) |
900 mm (35.4”) |
815 mm (32”) |
QL 200, SD-18 NUMA 240 |
168 mm (6.6”) |