Casing hangers details
R&T group introduce you the details of casing hanger, which you should know as an oilfield worker.
1. Thread casing hanger.
Thread type (i.e., screw-type) casing hanger, the equivalent of a casing collar, without cutting casing (W and WE both need to) save trouble, don't even open the bop can suspension bushing, solve the problem of wellhead suspension seal. But you need to calculate the depth of the casing to avoid the bottom. Generally used in relatively stable production well. The general mandrel (thread type) hanger is used with the threaded casing head, and the corresponding slip hanger can also be replaced. The seal principle of the sleeve head metal and rubber seal is the same as that of the tubing head metal and rubber seal.
2. Slip casing hanger.
A. The structure of the slip casing hanger:
The kava hanger is mainly made up of kava (quartile), kava (two equal parts), rubber seal (two equal parts), supporting seat (two equal parts), etc.
B. The working principle of the slip hanger:
Combining two and a half, embrace a casing hanger, as a whole into the casing head hole, make the slip tooth tightly stuck casing, the casing, under the action of gravity and slip tooth taper slip teeth wedge more and more tightly, make the slip tooth of casing card more and more tightly. However, the rubber seal produces deformation under the action of gravity, forming a seal to the casing and casing head body.
C. Inverter hanger.
Pour slip hanger is bolted at the bottom of the casing head ontology, the casing into BT after sealing ring to let slip, the slip tooth tightly stuck casing, the casing weight and the effect of taper, slip teeth wedge more and more tightly, make the slip tooth of casing card more and more tightly.
1. WE type slip casing hanger:
Generally speaking, WE type slip hanger is used in the surface, characterized by: large size, sealing annulus air pressure is not too high (compare W type). Another case is that casing cannot be well cementing on carry down (this is the prerequisite of W type hanger), WE can passive (casing, hanger sealing, rely on manual and without hanging load excitation seal) the installation of the seal, repair. If the factors such as suspension and seal are not strictly concerned, WE are generally interchangeable with the same size as W type.
2. W type casing hanger.
Compared with the WE type, it relies on the suspension of the drill string to trigger the seal, which is characterized by the maximum suspension tonnage, better sealing and safer, generally used in the suspension of the technical casing.
3. WD type hanger.
It is used only for surface casing head and bottom connection surface casing.
Casing hangers from R&T Group
To buy casing hanger, go to http://www.rtpetro.com/product-service/casing-hanger.html.
1. Thread casing hanger.
Thread type (i.e., screw-type) casing hanger, the equivalent of a casing collar, without cutting casing (W and WE both need to) save trouble, don't even open the bop can suspension bushing, solve the problem of wellhead suspension seal. But you need to calculate the depth of the casing to avoid the bottom. Generally used in relatively stable production well. The general mandrel (thread type) hanger is used with the threaded casing head, and the corresponding slip hanger can also be replaced. The seal principle of the sleeve head metal and rubber seal is the same as that of the tubing head metal and rubber seal.
 |
| CASING HANGER BY R&T Group |
2. Slip casing hanger.
A. The structure of the slip casing hanger:
The kava hanger is mainly made up of kava (quartile), kava (two equal parts), rubber seal (two equal parts), supporting seat (two equal parts), etc.
B. The working principle of the slip hanger:
Combining two and a half, embrace a casing hanger, as a whole into the casing head hole, make the slip tooth tightly stuck casing, the casing, under the action of gravity and slip tooth taper slip teeth wedge more and more tightly, make the slip tooth of casing card more and more tightly. However, the rubber seal produces deformation under the action of gravity, forming a seal to the casing and casing head body.
 |
| slip casing hanger |
C. Inverter hanger.
Pour slip hanger is bolted at the bottom of the casing head ontology, the casing into BT after sealing ring to let slip, the slip tooth tightly stuck casing, the casing weight and the effect of taper, slip teeth wedge more and more tightly, make the slip tooth of casing card more and more tightly.
1. WE type slip casing hanger:
Generally speaking, WE type slip hanger is used in the surface, characterized by: large size, sealing annulus air pressure is not too high (compare W type). Another case is that casing cannot be well cementing on carry down (this is the prerequisite of W type hanger), WE can passive (casing, hanger sealing, rely on manual and without hanging load excitation seal) the installation of the seal, repair. If the factors such as suspension and seal are not strictly concerned, WE are generally interchangeable with the same size as W type.
2. W type casing hanger.
Compared with the WE type, it relies on the suspension of the drill string to trigger the seal, which is characterized by the maximum suspension tonnage, better sealing and safer, generally used in the suspension of the technical casing.
3. WD type hanger.
It is used only for surface casing head and bottom connection surface casing.
Casing hangers from R&T Group
 |
| r&t casing hanger |
Comments
Post a Comment