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Kerah bor
Hejian Deris dapat menyediakan kerah bor Non-magnetik, Spiral drill collar , dan kerah bor Slick sesuai kebutuhan pelanggan. Didesain dan diproduksi secara ketat sesuai dengan API Spec 7-1.
Drill Collars adalah salah satu bagian dari string drill. Drill for the Collars dimaksudkan untuk memberikan bobot untuk tujuan pengeboran. The Drill Collars adalah tabung berdinding tebal seperti potongan-potongan yang dikerjakan dari batangan baja padat, meskipun mereka sering terbuat dari baja karbon biasa atau paduan non magnetik tembaga dan baja atau paduan premium lainnya yang bersifat non magnetik. Drill collar memiliki batangan baja padat yang dibor dari satu ujung ke ujung lainnya untuk memberikan suatu bagian untuk memompa cairan pengeboran melalui kerah.
Parameter Teknis Utama
|
Drill Collar Thread
|
OD |
ID |
Length |
|
||
|
|
||||||
|
|
||||||
|
mm |
in |
mm |
in |
mm |
|
|
|
NC31-41(27/8IF) |
104.8 |
4 1/8 |
50.8 |
2 |
9150 |
|
|
NC35-47 |
120.7 |
4 3/4 |
50.8 |
2 |
9150 |
|
|
NC38-50(31/2IF) |
127 |
5 |
57.2 |
2 1/4 |
9150 |
|
|
NC44-60 |
152.4 |
6 |
57.2 |
2 1/4 |
9150or9450 |
|
|
NC44-60 |
152.4 |
6 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC44-62 |
158.8 |
6 1/4 |
57.2 |
2 1/4 |
9150or9450 |
|
|
NC46-62(4IF) |
158.8 |
6 1/4 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC46-65(4IF) |
165.1 |
6 1/2 |
57.2 |
2 1/4 |
9150or9450 |
|
|
NC46-65(4IF) |
165.1 |
6 1/2 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC46-67(4IF) |
171.4 |
6 3/4 |
57.2 |
2 1/4 |
9150or9450 |
|
|
NC50-67(41/2IF) |
171.4 |
6 3/4 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC50-70(41/2IF) |
177.8 |
7 |
57.2 |
2 1/4 |
9150or9450 |
|
|
NC50-70(41/2IF) |
177.8 |
7 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC50-72(41/2IF) |
184.2 |
7 1/4 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC56-77 |
196.8 |
7 1/4 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC56-80 |
203.2 |
8 |
71.4 |
2 13/16 |
9150or9450 |
|
|
65/xREG |
209.6 |
8 1/4 |
71.4 |
2 13/16 |
9150or9450 |
|
|
NC61-90 |
228.6 |
9 |
71.4 |
2 13/16 |
9150or9450 |
|
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