The Spring Bows, the critical parts of the Centralizer, are made of high quality special steel strips. Bows are forged in four different unique designs to have varied heights. These are then hardened and tempered to ensure optimum mechanical properties to meet or exceed. the STARTING AND RESTORING FORCE criteria specified in A.P.I. Standard 10 D. Bows are then flattened several times on a special machine to get permanent setting.
All Centralizers bear A.P.I. Monogram on account of their consistent product quality.
In order to centre the casing at pre-selected points and to obtain a more uniform, annular, cementing space in the oil well, straight casing centralizer is one of the important cementing aid used. Beside, it helps in minimizing the hazards of channeling and ensures correct installation of the casing pipe in the well.
Casing Centralizers are non-weld with hinges and lips kept integral with the collars. These are best designed to have their versatile applications. The construction of the centralizers assures that hinges will not open while casing is being run regardless of hole direction or irregularities in formations and that the Centralizer will provide effective centering down the hole.
Centralizers bear A.P.I. Monogram on account of their constants product quality.
Single piece centralizer is suitable for vertical well, horizontal well and highly deviated wells.
This kinds of centralizer is with higher strength than traditional bow spring centralizers,although we call it bow spring centralizer.
ur single piece centralizers have exceptional restoring force by pressional downhole tool lab,meeting even exceed API 10D bow spring centralizer test specification.
Our single piece centralizer sizes are available from 4-1/2in to 20inch,any special sizes can meet your requirement according to casing and well hole size.
It is shipped in assembled condition only,when shipping them,in order to save space and shipment charges for customers,we usually put the smaller size centralizer into bigger size centralizer.
Specifications:
| Casing Size |
Hole Size |
Max O.D. |
| in. |
in. |
mm |
in. |
| 13-3/8 |
17-1/2 |
470 |
18.504 |
| 12-3/4 |
17- 1/2 |
466 |
18.346 |
| 10-3/4 |
12-1/4 |
370 |
14.567 |
| 9-5/8 |
12-1/4 |
375 |
14.764 |
| 7-5/8 |
9-7/8 |
273 |
10.748 |
| 7 |
8- 1/2 |
252 |
9.921 |
| 6-5/8 |
8- 1/2 |
245 |
9.646 |
| 5- 1/2 |
8- 1/2 |
256 |
10,079 |
| 5 |
6- 1/2 |
190 |
7.480 |
| 4-1/2 |
6 |
181 |
7.126
|
About Us
Maierda, located in Central China, is a professional supplier of petroleum equipment and tools.
Our factory has more than 15 years' experience in the R&D, production, sales and service of oilfield equipment and machinery.
Our sales team has more than 10 years importing & exporting experiences in the oil & gas industry.
Main Products
We are mainly engaged in oil well equipment and tools including various casing centralizers (bow centralizer, spring centralizer, single piece centralizer, solid body centralizer, rigid centralizer, semi-rigid centralizer, hinged centralizer, non-welded centralizer, welded centralizer, composite centralizer, nylon centralizer, stamped centralizer, positive centralizer, roller centralizer, slip-on centralizer, aluminum centralizer, zinc alloy centralizer), stop collar, sucker rod centralizer, tubing centralizer, drill pipe centralizer, etc.
We also provide some other competitive products in the oil & gas field including float equipment (collar and shoe), cementing plugs, cementing heads, stage collars, cement baskets, hammer unions, polished rod clamps, polished rod, couplings & crossovers for casing, tubing, sucker rod, polished rod, etc.
Our Services
We are committed to providing high-quality and cost-effective products and services to our customers.
We guarantee and uphold the highest standards in customer service, client satisfaction, and quality product delivery in the oilfield industry.
Hope to have a good cooperation with you!
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