一、 Use of rubber quick package casing-screw protector
When drilling and needing put down the casing, to protect the casing-screw. Rubber quick package casing-screw protector provide with 5 1/2″、7″ 9 5/8″、10 3/4″ 13 3/8″, which completely according with API, it operates conveniently and fast, its clamping force is greatly, the essence bears the impact, in the process of a tube moving can better protect casing-screw and avoid producing the spark with a collision of other irons, satisfy a flameproof request of well, is the artesian well homework to protect the casing-screw ideally.
二、 Structure of rubber quick package casing-screw protector
Rubber quick package casing-screw protector has rubber casing-screw and quick spanner. Rubber casing-screw has steel-core, whose rubber was vulcanized to shape by mould. Quick spanner has handle, lead screw and quick slip-set.
Structure：（Fig）
三、 The main Techno-parameter of rubber quick package casing-screw
|
Casing-screw specification |
Suited Casing OD |
|
(inch) |
(mm) |
(inch) |
(mm) |
|
5" |
127.00 |
5" |
127.00 |
|
5 1/2" |
139.7 |
5 1/2" |
139.7 |
|
7" |
177.80 |
7" |
177.80 |
|
9 5/8" |
244.5 |
9 5/8" |
244.5 |
|
10 3/4" |
273.0 |
10 3/4" |
273.0 |
|
13 3/8" |
339.7 |
13 3/8" |
339.7 |
四、Operating principle of rubber quick package casing-screw
Rubber quick package casing-screw protector use the principle that screw groove can move quickly and are easy to loosen and tight. The essence bears the impact, in the process of a tube moving can better protect casing-screw and avoid producing the spark with a collision of other irons, satisfy a flameproof request of well, it operates conveniently and fast.
五、Installation and use
1、Put the suited rubber quick package casing-screw protector on the screw of the casing. Push the quick spanner of rubber quick package casing-screw protector inside, and then make the casing-screw protector lockup the screw of casing. 2、When the single casing is hanging up and put on the wellhead finally, Pull the quick spanner of rubber quick package casing-screw protector outside, casing-screw protector is loosen itself. Make casing-screw protector away and install next casing. Rubber quick package casing-screw protector can use again and again
六、Reserve
Rubber quick package casing-screw protector must reserve in low temperature and lightproof places, in order to prevent rubber from turning.
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