We know the liner hanger is a very important part tools in oilfield drilling, so we need to know more knowledge about liner hanger.
First, we should know,what is a Liner Hanger?
Liner Hnager is similar to casing, is a tool/system that is used to hang a liner in a production well. but it is not run through the full depth of the well, as casing is.
A liner hanger allows the liner (casing below the liner hanger) to be suspended in the previous casing string to reduce material cost and provide completion solution options. A seal is required at the top of the liner hanger to prevent transfer of fluid or pressures from either direction.
Liner hanger systems could be mechanical or hydraulic, premium or standard, rotating or non-rotating, conventional or expandable and pocket slip.
Second,What is the application or usage of a Liner Hanger?
The purpose of the liner hanger, aside from the structural well construction purpose already answered, is to isolate flow up inside of the liner rather than the annular space which would contribute in the event no liner hanger were set.Liners are used to save on metal costs, as since the pipe does not run to the top, and sometimes on cementing costs (some liners are not cemented). As the name suggests, you use liner hangers to fix liners in place. The feature that distinguishes a liner from a regular casing column is that it starts not at the top of the well, but at some point below ground (usually deeper than 1000m). The pipe at the bottom of the left scheme and the hanger is schematically shown as two crossed squares.
Third,why do we use Liner Hanger?(The Reason we use liner hanger: )
- Key reasons of using liners are:
- Open hole is cased off faster
- Less weight for a wellhead
- Better cementing
- Rig capacity
- Cost advantage over a full casing string
Forth:The types of liner hanger we have as below:
We are liner hanger manufactuer and factory,have exported our liner hanger to Russia,UAE,Clombia etc 12 countries. If you have any technical questions or price request,welcome contact us. We will provide more details for you.If you have order,you can contact oue sales man for price details.