钻杆卡瓦使用说明书

卡瓦使用说明书
Manual for Slips
一、简介：
本系列卡瓦适用于在石油及天然气钻井作业中卡持钻杆和5½"以下的套管，是供上扣或卸扣工作的必备工具。

Brief Introduction:
This slips series are suitable to handle the drill pipes and casing less than 5½" OD in the oil and natural gas drilling operation, and they are the necessary tools for coupling and uncoupling operation.
二、主要技术参数:
三、使用须知及维护保养:
1、卡瓦最低使用温度0℃。

2、按钻杆、套管直径及最大载荷选择相应卡瓦，禁止超过使用范围。

3、使用前应注意销轴是否转动灵活，有无卡阻现象。

4、严禁用大锤敲击拖把和卡瓦背锥面，或将卡瓦从高处摔下，以免将手把和背锥面碰坏。

5、应经常清洗、润滑，保持卡瓦表面清洁，防止锈蚀。

6、定期对卡瓦进行检查(一般两个月检查一次)。

a. 检查牙板槽是否胀大；
b. 用直尺检查卡瓦体背锥磨损情况；
c. 检查各筋板是否出现裂纹；
d. 检查卡瓦连接销磨损情况中。

7、消除方瓦圆锥面的磨砺性物质，减少卡瓦背锥面的磨损。

8、经常检查转盘补心圆锥面磨损情况，测量圆锥面小端直径，如因磨损，尺寸超过规定应予
更换。

9、卡瓦牙磨损后，应及时全部更换，切忌将新旧牙板组合使用，以免承受集中载荷，造成牙
板、卡瓦体、钻杆的损坏。

10、长期不用时，应将卡瓦清洗干净，涂防锈油，放置干燥通风处。

11、背锥磨损严重不得修复，如自己修复后影响卡瓦扣合质量，甚至酿成质量事故，本厂概不
负责。

Usage caution and maintenance:
1) The lowest temperature for the slips in operating is 0℃。

2) Select the corresponding slips as per the correct OD of tubular and the Max load.
3) Whether any pins can be rotated normally and whether there is any blocks or not should
be checked before operation.
4) Whacking the handles and the back taper surface with big hammer or dropping the slips
from higher position is prohibited, lest the handles or back taper surface are damaged. 5) The surface of slips shall be kept clean by constant cleansing and lubricating against
rusty.
6) The slips shall be periodically checked (normally every two months):
a) Whether the insert bowls is worn oversized.
b) The worn condition of the slips taper surface with a ruler
c) Whether the I section channel beam has cracks.
d) The worn condition of the slips hinges pins.
7) Remove harden granules away from the taper surface of the rotary bushing to avoid any
more wear abrasion.
8) Often check the wear and tear condition of the taper surface of the rotary bushing, gauge
the diameter at the small end of the taper surface. If the size is larger than simulative size due to abrasion, it should be replaced.
9) The inserts of slips shall be replaced entirely in time when they are worn out. Old and new
inserts shall not be assembled together for using, in case the slips segments, inserts and drill pipes are damaged from the faulty concentrated load.
10) W hen the slips are not used for a longer time, the slips shall be cleaned and coated with
anti-rustic oil and placed in a dry place with good ventilation.
11) T he taper surface can not be repaired for further using when it is seriously worn out, this
factory is not responsible for any accident caused by the fact that the slips wrapping quality is affected by the self repairing of the back taper surface.。