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取芯工具主要用于石油、地质勘探钻井中获取岩样。一次可下一至三节。内、外筒适用于中硬、硬及一般破碎地层。我公司生产的取芯工具有以下系列：庆84-I 型、川8-3型、川8-4型、川7-4型。
The coring tools are used for acquisition of the rock core in petroleum drilling. Everytime one to three sections of inner barrels and outer barrels can be run in core drilling. They can be applied in soft , moderate and rigid rock formations. The series of tools manufactured are as followed: Qing 84--I type , Chuan 7-4type，Chuan 8-4 type\Chuan 8-3 type.
技术规格及参数
| 系列 |
类型 |
外筒尺寸(mm) |
内筒尺寸(mm) |
每节长度(mm) |
井眼直径(mm) |
| 外径×内径×壁厚(mm) |
外径×内径×壁厚(mm) |
| 庆84-I |
Q84-I |
ф180×ф144×18 |
ф127×ф108×9.5 |
9000 |
216～245 |
| 川8-4 |
CZ84 |
ф180×ф136×18 |
ф127×ф112×7.5 |
9000 |
216～245 |
| 川8-3 |
CQX83 |
ф180×ф144×18 |
ф127×ф112×7.5 |
9000 |
216～245 |
| 川7-4 |
SQX172 |
ф172×ф136×18 |
ф127×ф105×8.0 |
9000 |
190～216 | |
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