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套管双塞水泥头（简称水泥头）是一种常用的固井工具，在各种固井作业中用作注水泥的井口装置。与单塞水泥头相比，加长了水泥头本体，可同时装入上、下胶塞。
该产品具有结构简单、操作方便、耐高压、管汇通用、联接灵活等特点。特别是杠杆式指示器能表示胶塞是否通过双塞水泥头进入套管内，便于操作人员判断。
The casing cement-head with double plugs (called as cement-head ) is a common cementing tool used as wellhead unit in all kinds of cementing operation. Comparing to cement-head with single plug, it owns longer cement-head body , and upper rubber plug and lower rubber plug can be put in at same time.
The tool owns some advantages such as simple construction, easy operation, high pressure resistant, manifold in common use, flexible in connecting. Especially, the lever type indicator can shows whether rubber plug goes through double plugs cement-head to enter casing so that operator can determine easily.
技术规格及参数
| 型号Type
|
ST35-140 |
ST35-178 |
ST-244 |
ST16-340 |
| 规格Size
|
φ139.7(51/2”) |
φ177.8(7”) |
φ244.5(95/8”) |
φ339.7(13 3/8”) |
最大工作压力
Max.working pressure |
35Mpa |
35Mpa |
35Mpa |
20Mpa |
套管接箍螺纹
Casing coupling
thread
|
51/2”LTC/BTC |
7” LTC/BTC |
95/8”LTC/BTC |
13 3/8”LTC/BTC |
管汇接口
Manifold interface |
2” union |
2”union |
2” union |
2”union |
装胶塞处内径
ID of plug container(mm) |
φ125 |
φ 160 |
φ225 |
φ320 |
装胶塞处长度
Length of plug container
(mm)
|
450 |
460 |
560 |
560 |
| Overall length
总长 |
1886 |
1972 |
1701 |
2210 | |
|
