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地震击器是解除井内卡钻事故的有效工具，它连接在钻柱的地面部分，调整吨位的机构是露出盘面，地面震击器作业时能清楚地看到给被卡落鱼强烈的下击。该工具震击力的强弱只用简单的方法就可以调节，是一种操作方便、设计、巧妙、能进行连续下击的工具不但能承受重载荷和强扭矩，而且密封性能良好，能抵抗高泵压泥浆循环。经多年使用结果证明，是一种安全可靠成功而有效的解卡工具。
DJ Type Surface Bumper Jar is an effective tool for resolving the problem of stuck drill tool in down hole.It is connected with the surface section of drill string, the device to adjust the tonnage shall protrude from the rotary disc face,the violent down jarring to the stuck catch can be clearly seen when the surface jar makes jarring operation. The jarring strength for the tool can be easily adjusted and it is a easy operated ,unique designed tool which can make continuous down jarring .The surface jar ,which not only can bear heavy load and strong torque but also owns a good sealing property and can withstand the mud circulation with high pump pressure,has proven to be an safe,successfully effective releasing tool through many years’application.
技术规格及参数
型号
参数 |
DJ46B(4 3/4") |
DJ70B(7") |
| 外径 mm(in) |
121(4 3/4) |
178 (7) |
| 最大震击力(tf) |
0.4(41±5) |
0.8 (80±5) |
| 最大抗拉载荷(tf) |
1.2(122) |
1.5 (153) |
| 密封压力(kgf/cm2) |
20(196) |
20(196) |
| 行程 mm(in) |
1500 (≈59) |
1220 (≈48) |
| 水眼 mm(in) |
32(1 1/4) |
51(2) |
| 接头螺纹 |
NC38 (3 1/2 IF) |
NC50 (4 1/2 IF) |
| 闭合长度 mm(in) |
3155 (124.2) |
3090 (121.8) |
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