Drill Collars
Kolar pengeboran minangka salah sawijining komponèn saka senar pengeboran yaiku tubular industri sing digunakake kanggo pengeboran ing lemah kanggo nyedhiyakake bobot kanggo pengeboran.Iki digunakake kanggo gabung karo pipa pengeboran.Ana jinis lunyu lan spiral grooved utamané.Proses manufaktur kita disertifikasi kanggo spesifikasi API 7-1.Kolar pengeboran digawe saka baja paduan AISI 4145 H utawa 4145 H.Bores sing trepanned saka siji arah tanpa mismatch.Kabeh collars pengeboran sing panas-dianggep karo atose ing 285 kanggo 341 BHN, kang dijamin siji inch ngisor lumahing pipa.
Kolar pengeboran non-magnetik nyedhiyakake kekuwatan lan kekerasan nalika nyegah gangguan magnetik sing bisa ngrusak akurasi survey magnetik.Diprodhuksi saka bahan baja khusus kanthi permeabilitas sing kurang, sifat mekanik sing dhuwur lan ketahanan sing unggul kanggo retak karat.
Kita nyedhiyakake kerah pengeboran sing apik, kerah pengeboran spiral lan kerah pengeboran non-magnetik;ukuran sing saka 3-1 / 8 kanggo 11 inci.Kejabi collars pengeboran ing tabel ing ngisor iki, kita bisa nyedhiyani collars pengeboran liyane ing request pelanggan.
| Item | jeneng | Spiral utawa Slick | OD | ID | Alat gabungan | Diameter bevel ing | Bahan | Sakabèhé dawa | |
| in | in | Sambungan | ft | ||||||
| 1 | Kerah bor | Lunyu utawa Spiral | 3.1/8 | 1.1/4 | NC26 | 2.3/8″ IF | 3 | 4145H | 30 utawa 31 |
| 2 | Kerah bor | Lunyu utawa Spiral | 3.1/2 | 1.1/2 | NC26 | 2.3/8″ IF | 4145H | 30 utawa 31 | |
| 3 | Kerah bor | Lunyu utawa Spiral | 4.1/8 | 2 | NC31-41 | 2.7/8″ IF | 3.61/64 | 4145H | 30 utawa 31 |
| 4 | Kerah bor | Lunyu utawa Spiral | 4.3/4 | 2 | NC35-47 | 4.33/64 | 4145H | 30 utawa 31 | |
| 5 | Kerah bor | Lunyu utawa Spiral | 5 | 2.1/4 | NC38-50 | 3.1/2″ IF | 4.49/64 | 4145H | 30 utawa 31 |
| 6 | Kerah bor | Lunyu utawa Spiral | 6 | 2.1/4 | NC44-60 | 5.11/16 | 4145H | 30 utawa 31 | |
| 7 | Kerah bor | Lunyu utawa Spiral | 6 | 2.13/16 | NC44-60 | 5.11/16 | 4145H | 30 utawa 31 | |
| 8 | Kerah bor | Lunyu utawa Spiral | 6.1/4 | 2.1/4 | NC44-62 | 5.7/8 | 4145H | 30 utawa 31 | |
| 9 | Kerah bor | Lunyu utawa Spiral | 6.1/4 | 2.13/16 | NC46-62 | 4″ JIKA | 5.29/32 | 4145H | 30 utawa 31 |
| 10 | Kerah bor | Lunyu utawa Spiral | 6.1/2 | 2.1/4 | NC46-65 | 4″ JIKA | 6.3/32 | 4145H | 30 utawa 31 |
| 11 | Kerah bor | Lunyu utawa Spiral | 6.1/2 | 2.13/16 | NC46-65 | 4″ JIKA | 6.3/32 | 4145H | 30 utawa 31 |
| 12 | Kerah bor | Lunyu utawa Spiral | 6.3/4 | 2.1/4 | NC46-67 | 4″ JIKA | 6.9/32 | 4145H | 30 utawa 31 |
| 13 | Kerah bor | Lunyu utawa Spiral | 7 | 2.1/4 | NC50-70 | 4.1/2″IF | 6.31/64 | 4145H | 30 utawa 31 |
| 14 | Kerah bor | Lunyu utawa Spiral | 7 | 2.13/16 | NC50-70 | 4.1/2″IF | 6.31/64 | 4145H | 30 utawa 31 |
| 15 | Kerah bor | Lunyu utawa Spiral | 7.1/4 | 2.13/16 | NC50-72 | 4.1/2″IF | 6.43/64 | 4145H | 30 utawa 31 |
| 16 | Kerah bor | Lunyu utawa Spiral | 7.3/4 | 2.13/16 | NC56-77 | 7.19/64 | 4145H | 30 utawa 31 | |
| 17 | Kerah bor | Lunyu utawa Spiral | 8 | 2.13/16 | NC56-80 | 7.31/64 | 4145H | 30 utawa 31 | |
| 18 | Kerah bor | Lunyu utawa Spiral | 8.1/4 | 2.13/16 | 6.5/8" REG | 7.45/64 | 4145H | 30 utawa 31 | |
| 19 | Kerah bor | Lunyu utawa Spiral | 9 | 2.13/16 | NC61-90 | 8.3/8 | 4145H | 30 utawa 31 | |
| 20 | Kerah bor | Lunyu utawa Spiral | 9.1/2 | 3 | 7.5/8" REG | 8.13/16 | 4145H | 30 utawa 31 | |
| 21 | Kerah bor | Lunyu utawa Spiral | 9.3/4 | 3 | NC70-97 | 9.5/32 | 4145H | 30 utawa 31 | |
| 22 | Kerah bor | Lunyu utawa Spiral | 10 | 3 | NC70-100 | 9.11/32 | 4145H | 30 utawa 31 | |
| 23 | Kerah bor | Lunyu utawa Spiral | 11 | 3 | 8.5/8" REG | 10.1/2 | 4145H | 30 utawa 31 | |
| Cathetan: | Yen klien duwe syarat khusus, contone senyawa, rolling kadhemen, nggawe lan break, hard banding (ARNCO 100XT ARNCO 300XT etc), lapisan internal (TK34 TK34PTC2000, etc), Stress- Relief Pin, Bosen Back Box, Lift Recess, slip Recess please aran gratis kanggo hubungi kita. | ||||||||
| Kerah Bor Non-Magetik | ||
| sasmita | Kekuwatan Tarik Minimal | |
| psi | Mpa | |
| 1 | 90000 | 621 |
| 2 | 9000 | 621 |
| 3 | 115000 | 793 |
| ** Kolar pengeboran non-magetik bisa disesuaikan miturut desain pelanggan.Ukuran mangga deleng ukuran kerah pengeboran. | ||
| Spiral Drill Collar | |||||||||
| OD (ing) | 4 3/4 | 6 1/4 | 6 3/4 | 7 1/4 | 7 1/2 | 8 | 9 1/2 | 10 | 11 |
| Kedalaman Potong (ing) | 7/32 ± 1/32 | 9/32 ± 1/16 | 5/16 ± 1/16 | 11/32 ± 1/16 | 11/32 ± 1/16 | 3/8 ± 1/16 | 13/32 ± 3/32 | 7/16 ± 3/32 | 15/32 ± 3/32 |
| Pitch Spiral (ing) | 38 ± 1 | 42 ± 1 | 46 ± 1 | 64 ± 1 | 64 ± 1 | 68 ± 1 | 72 ± 1 | 76 ± 1 | 80 ± 1 |
| ** Krah bor bisa disesuaikan miturut desain pelanggan. | |||||||||
Kolar pengeboran minangka gabungan tugas berat integral sing digawe saka batang baja paduan AISI 4145H sing dimodifikasi.Collars pengeboran standar kita diwenehake karo kondisi Rampung lumahing "minangka mbalek".?Kabeh bar standar nampa perawatan panas sing nyedhiyakake sifat mekanik sing dibutuhake.
Bar iku banjur trepanned lan drifted.?Kabeh collars pengeboran kita diprodhuksi ing
sesuai karo spek API 7, Q1 lan praktik 7G sing disaranake, kaya sing ditrapake.
Ukuran Standar, Bores, lan Sambungan
| Kerah Bor Ukuran & Jinis Sambungan | Min. OD | mboseni | dawa | Kekuwatan Mlengkung Rasio*** | Kerah Bor Wt. |
| (ing.) | (ing.) | (ft.) | (lb.) | ||
| NC 26 (2-3/8 IF) | 3-1/2 | 1-1/2 | 30 | 2.42:1 | 801 |
| NC 31 (2-7/8 IF) | 4-1/8 | 2 | 30 | 2.43:1 | 1041 |
| NC 38 (3-1/2 IF) | 4-3/4 | 2-1/4 | 31 | 1.85:1 | 1451 |
| NC 38 (3-1/2 IF) | 5 | 2-1/4 | 31 | 2.38:1 | 1652 |
| NC 44 | 6 | 2-1/4 | 31 | 2.49:1 | 2561 |
| NC 44 | 6 | 2-13/16 | 31 | 2.84:1 | 2353 |
| NC 44 | 6-1/4 | 2-1/4 | 31 | 2.91:1 | 2806 |
| NC 46 (4 IF) | 6-1/4 | 2-13/16 | 31 | 2.63:1 | 2598 |
| NC 46 (4 IF) | 6-1/2 | 2-1/4 | 31 | 2.76:1 | 3085 |
| NC 46 (4 IF) | 6-1/2 | 2-13/16 | 31 | 3.05:1 | 2877 |
| NC 46 (4 IF) | 6-3/4 | 2-1/4 | 31 | 3.18:1 | 3364 |
| NC 50 (4-1/2 IF) | 7 | 2-1/4 | 31 | 2.54:1 | 3643 |
| NC 50 (4-1/2 IF) | 7 | 2-13/16 | 31 | 2.73:1 | 3434 |
| NC 50 (4-1/2 IF) | 7-1/4 | 2-13/16 | 31 | 3.12:1 | 3714 |
| NC 56 | 8 | 2-13/16 | 31 | 3.02:1 | 4675 |
| 6-5/8 REG. | 8 | 2-13/16 | 31 | 2.60:1 | 4675 |
| 6-5/8 REG. | 8-1/4 | 2-13/16 | 31 | 2.93:1 | 5016 |
| 7-5/8 REG. | 9-1/2 | 3 | 31 | 2.81:1 | 6727 |
| 7-5/8 REG.** | 9-3/4 | 3 | 31 | 3.09:1 | 7130 |
| 8-5/8 REG.** | 11 | 3 | 30 | 2.78:1 | 8970 |
| ** torsi kurang pasuryan *** Rasio kothak kanggo modulus bagean pin - Waca API RP7G kanggo rincian Cathetan: Ukuran lan sambungan liyane kasedhiya uga fitur opsional liyane sing kadhaptar | |||||
| Properti Mekanik | ||||||
| TTT | kekuatan ngasilaken 0.2Mpa | Kekuwatan tarik b Mpa | Elongation 4% | Kekerasan (Brinell) | NILAI IMPAK (CHAPPY-V) | |
| mm | ing inch | |||||
| 79.4-171.4 | 3 1/8-6 3/4 | ≥ 758 | ≥ 965 | ≥ 13 | 285-341 | ≥ 54 |
| 177.8-279.4 | 7-11 | ≥ 689 | ||||
