Special Clearance - HRS Centralizer

High Restoring force for Horizontal Wells

This type is special design centralizer for use in highly deviated and horizontal well where zero starting & running force and very high restoring force are required, Asta developed this type centralizer to combined the application in field between closed tolerance and high restoring force required. Available as Slip On and Latch On Type , and available in all sizes ranging from 3 1/2” to 13-3/8” for any hole combination.

Products features include :

Designed to far exceed API Specification 10D for high restoring forces.
highly deviated and horizontal well where low running force and very high centering force are required.

Table 1: Centralizer Product Specification
Casing Size (in)	Hole Size (in)	Number of Bow	Band ID (in)	Average Bow OD (in)	Max. Starting / Running Force (lbf)		Min. Restoring Force at 67% stand off (lbf)
Casing Size (in)	Hole Size (in)	Number of Bow	Band ID (in)	Average Bow OD (in)	API	Asta	API	Asta
3-1/2	6	4	3.700	5.950	396	0	396	2800
4	6	4	4.200	5.950	454	0	454	2000
4-1/2	6	4	4.700	5.950	464	0	464	2300
4-1/2	8-1/2	4	4.700	8.450	464	0	454	2000
7	8-1/2	6	7.200	8.450	1040	0	1040	2700
7	9-1/2	6	7.200	9.450	1040	0	1040	2500
9-5/8	12-1/4	6	9.840	12.200	1600	0	1600	300
13-3/8	17-1/2	8	13.600	17.400	2440	0	1220	2600

Notes: Other size & requirement are available based on request.

Ordering Suggestions
To assure the correct size and type of equipment is obtained, please specify:
1. Casing O.D on which the equipment will be used.
2. Hole size or casing I.D in which the equipment will be placed.
3. Any restriction through which the equipment will be run.

Product Picture