Optimize Casing Placement Stop Collars For Drilling Operations
Centralizer Stop Collars
- Centralizer Stop Collars: Applications and Unique Features
a. Mobile Screw-Type Stop Collar: Slide the collar over the casing and securely tighten the screws using a wrench, ensuring a snug fit.
b. Fixed Screw-Type Stop Collar: Place the collar around the casing, then carefully insert and gently tap the screws into position using a hammer, securing them firmly.
c. Buckle-Type Stop Collar: Fasten the stop collar onto the casing by buckling it and locking it in place with a pin. To ensure optimal performance, softly tap the screws into position using a hammer.
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Discover the wide-ranging applications and distinctive features of centralizer stop collars, also known as position rings, stop circulars, brake rings, and more. These collars play a crucial role in limiting the slip of centralizers or cement baskets on casing during the cementing process. Available in three types - mobile screw, fixed screw, and buckle - their primary function is to restrict axial movement and ensure proper positioning of centralizers or cement baskets along the casing.
Step-by-Step Installation and Usage Guide for Centralizer Stop Collars
Step-by-Step Guide to Install and Utilize Centralizer Stop Collars
3. Property Parameters of Centralizer Stop Collars:
| Specifications,mm | 13 3/8″ | 10 3/4″ | 9 5/8″ | 8 1/8″ | 7 5/8″ | 7″ | 5 1/2″ | 5″ | 4 1/2″ |
| ID,mm | 338 | 272 | 245 | 206 | 193 | 177 | 139 | 126 | 114 |
| OD,mm | 350 | 284 | 257 | 218 | 285 | 189 | 151 | 138 | 126 |
| Holding Force,KN | 40 | 40 | 40 | 30 | 30 | 30 | 30 | 24 | 24 |
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
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