Centralizer Stop Collars
- Centralizer Stop Collars: Applications and Features
Discover the applications and distinctive characteristics of centralizer stop collars, also known as position rings, stop circulars, brake rings, and more. These collars come in three types: mobile screw-type, fixed screw-type, and buckle-type. Their primary purpose is to prevent the axial movement of centralizers or cement baskets on the casing during cementing operations.
- Installation and Usage Guidelines for Centralizer Stop Collars
a. Mobile Screw-Type Stop Collar: Slide the collar over the casing and use a wrench to securely tighten the screws.
b. Fixed Screw-Type Stop Collar: Place the collar around the casing, insert the screws, and gently tap them into position using a hammer.
c. Buckle-Type Stop Collar: Attach and fasten the stop collar onto the casing using the buckle mechanism, and secure it with a pin. Subsequently, use a hammer to gently tap the screws into place.
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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 |
Company Information
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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Carbon Steel Stop Collars For Reliable Casing Centralization And Improved Wellbore Integrity Images
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