轉換接頭在石油、天然氣和地質鉆井作業(yè)中起鉆柱構件的轉換連接作用,是連接上部鉆具與下部鉆具的主要工具之一,分鉆柱轉換接頭和油管轉換接頭。A型(同徑式)、B型(異徑式)和C型(左旋式)。在鉆井過程中,下部鉆具的扣型與上部鉆具的扣型連接不上,這就需要用轉換接頭來連接。
鉆柱轉換接頭技術參數(shù)
Specification of Drill String Cross-over Joint
名稱Denotation | 上部連接件 Upper Connection Part | 下部連接件 Lower Connection Part | 型 式 Type |
方鉆桿轉換接頭 Kelly Cross-over Joint | 方 鉆 桿 Kelly | 鉆 桿 接 頭 Drill pipejoint | A or B |
鉆桿轉換接頭 Drill Pipe Joint | 鉆 桿 接 頭 Drill Pipe Joint | 鉆 桿 接 頭 Drill Pipe Joint | A or B |
過渡轉換接頭 Crossover Joint | 方 鉆 桿 Kelly | 鉆 鋌 Drill Collar | A or B |
鉆鋌轉換接頭 Drill Collar Joint | 鉆 鋌 Drill Collar | 鉆 鋌 Drill Collar | A or B |
鉆頭轉換接頭 Bit Joint | 鉆 鋌 Drill Collar | 鉆 頭 Bit | A or B |
水龍頭轉換接頭 Swivel Joint | 水龍頭下接頭 Swivel Lower Joint | 方 鉆 桿 Kelly | C |
打撈用轉換接頭 Fish Joint | 方 鉆 桿 Kelly | 鉆 桿 接 頭Drill Pipe Joint | C |
鉆 桿 接 頭Drill Pipe Joint | 打撈工具 Fishing Tool | C |
油管轉換接頭技術參數(shù)
Specification of Tubing Cross- Joint
外 螺 紋 External Thread | 內 螺 紋 Internal Thread | ||||||||
螺紋代號 Thread Code Name | 錐 度 Tapering | 大端直徑 Large End Diameter (mm) | 小端 直徑 Small End Diameter (mm) | 內徑 I.D. (mm) | 螺 紋 代 號 Thread Code Name | 錐 度 Tapering | 大端直徑 Large End Diameter (mm) | 小端直徑 Small End Diameter (mm) | 內徑 I.D. (mm) |
1.900TBG | 1:16 | 48.3 | 47 | 40.3 | 1.900TBG | 1:16 | 55.9 | 66.1 | 49.9 |
2-3/8TBG | 1:16 | 60.3 | 59 | 40.3 | 2-3/8TBG | 1:16 | 73.0 | 58.1 | 61.9 |
2-7/8TBG | 1:16 | 73 | 70 | 62 | 2-7/8TBG | 1:16 | 88.9 | 70.8 | 74.6 |
3-1/2TBG | 1:16 | 88.9 | 86 | 76 | 3-1/2TBG | 1:16 | 108.0 | 86.7 | 90.5 |
4TBG | 1:16 | 101.6 | 98 | 88 | 4TBG | 1:16 | 120.6 | 98.5 | 103.2 |
4-1/2TBG | 1:16 | 114.3 | 111 | 100.3 | 4-1/2TBG | 1:16 | 132.1 | 111.2 | 115.9 |
4-1/2BCSG | 1:16 | 114.7 | 112 | 100 | 1.900UPTBG | 1:16 | 63.5 | 51.0 | 54.8 |
1.900UPTBG | 1:16 | 53.2 | 51 | 40.3 | 2-3/8UPTBG | 1:16 | 77.8 | 62.8 | 67.5 |
2-3/8UPTBG | 1:16 | 65.9 | 64 | 50.3 | 2-7/8UPTBG | 1:16 | 93.2 | 75.5 | 80.2 |
2-7/8UPTBG | 1:16 | 78.6 | 76 | 62 | 3-1/2UPTBG | 1:16 | 114.3 | 92.2 | 96.9 |
3-1/2UPTBG | 1:16 | 95.2 | 92 | 75.9 | 4UPTBG | 1:16 | 127.0 | 104.9 | 109.6 |
4UPTBG | 1:16 | 108.0 | 104 | 88.6 | 4-1/2UPTBG | 1:16 | 141.3 | 117.6 | 122.3 |
4-1/2UPTBG | 1:16 | 120.6 | 117 | 100.3 |