Our Products
Available in the size range 4 to 20, this device ensures highefficiency in casing jobs on deviated and horizontal wells. Combiningthe features of a standard spring bow and rigid centralizer, it hasbows manufactured from alloy steel tempered for exact hardness anda non- weld design to eliminate brittle spots. The spring characteristicsof its double crested profile permit compression to facilitate movementthrough tight spot.These centralizers are available in threee catagories i.e. Hinged Nonweld, Hinged welded & Slip on welded.Its Performance achieves the highest restoring forces and usually zeroto minimum starting force and used in most types of well designs , Mostsuited for horizontal and directional well designs.
Centralizers with turbo-fins attached to each bow spring called asTurbolizer are designed to create localized turbulent fluid flow at thepoint of instalation. The turbofins divert the fluid flow to more evenlydistributing the cement around the casing. All welded and nonweldedbowspring centralizers are available in the most common hole/casingsizes.Available in the size range from 4 1/2 up to 20, this sturdy deviceinduces a spiral flow pattern in the slurry thereby increasingdisplacement efficiency. Fitted with specially designed multidirectionturbofins, made of alloy steel in annealed state. This deviceimproves the cleaning action of drilling fluids, distributes the cementslurry into wellbore irregularities and minimizes channeling.
Available in the size range 4 ½ ” to 20”, this device ensures high efficiency in casing jobs on deviated and horizontal wells. Combining the features of a standard spring bow and rigid centralizer, it has bows manufactured from alloy steel tempered for exact hardness and a non- weld design to eliminate brittle spots. The spring characteristics of its double crested profile permit compression to facilitate movement through tight spot. These centralizers are available in threee catagories i.e. Hinged Non weld, Hinged welded & Slip on welded. Its Performance achieves the highest restoring forces and usually zero to minimum starting force and used in most types of well designs , Most suited for horizontal and directional well designs.
Centralizers with turbo-fins attached to each bow spring are designed to create localized turbulent fluid flow at the centralizer. The turbofins divert the fluid flow to more evenly distributing the cement around the casing. All welded and nonwelded bowspring centralizers are available in the most common hole/casing sizes. Available in the size range 4 1/2 ” to 20”, this sturdy non-weld device induces a spiral flow pattern in the slurry thereby increasing displacement efficiency. Fitted with specially designed multidirection turbo fins, made of alloy steel in annealed state. This device improves the cleaning action of drilling fluids, distributes the cement slurry into wellbore irregularities and minimizes channeling.
As per design appearance, Positive bow centralizer is designed with positive steel channel bow which provides positive casing stand off. Positive centralizers are of three types hinged non weld , hinge welded, slip on welded. WELLCARE non weld positive centralizers are uniquely designed with flat bottom U profile with different depths permitting maximum fluid passage. The flat U profile is fitted in self locking retaining lips for firm and positive hold. These centralizers significantly reduce frictional drag while being used in deviated holes. They provide almost 100% standoff when run inside a cased hole. They are supplied 4-8mm less than the inside diameter of the casing or hole size in which the centralizer is to be run. The non weld design eliminates brittle spots, enhancing durability. WELLCARE positive centralizers are available in a size range of 4 ½ ” to 20”.
Technical Specifications
Casing Size in | Hole Size in | Nos. of Bows | Maximum OD in | Maximum Compressed OD in | |
---|---|---|---|---|---|
4 – 1 / 2 | 6 | 4 | 6 – 1 / 8 | 5.41 | |
6 – 1 / 4 | 4 | 6 – 3 / 8 | 5.41 | ||
6 – 1 / 2 | 4 | 6 – 5 / 8 | 5.41 | ||
7 – 7 / 8 | 4 | 8 | 5.41 | ||
5 | 6 – 1 / 2 | 4 | 6 – 5 / 8 | 5.92 | |
6 – 3 / 4 | 4 | 6 – 7 / 8 | 5.92 | ||
7 – 7 / 8 | 4 | 8 | 5.92 | ||
8 – 1 / 2 | 4 | 8 – 5 / 8 | 5.92 | ||
5 – 1 / 2 | 7 – 7 / 8 | 4 | 8 | 6.43 | |
8 – 1 / 2 | 4 | 8 – 5 / 8 | 6.43 | ||
8 – 3 / 4 | 4 | 8 – 7 / 8 | 6.43 | ||
9 – 7 / 8 | 4 | 10 | 6.43 | ||
6 – 5 / 8 | 8 – 1 / 2 | 4 | 8 – 5 / 8 | 7.57 | |
7 | 8 – 1 / 2 | 4 | 8 – 5 / 8 | 7.97 | |
8 – 3 / 4 | 4 | 8 – 7 / 8 | 7.97 | ||
9 – 7 / 8 | 4 | 10 | 7.97 | ||
7 – 5 / 8 | 9 – 7 / 8 | 4 | 10 | 8.6 | |
8 – 5 / 8 | 10 – 5 / 8 | 6 | 10 – 3 / 4 | 9.58 | |
11 – 5 / 8 | 6 | 11 – 3 / 4 | 9.58 | ||
12 – 1 / 4 | 6 | 12 – 3 / 4 | 9.58 | ||
9 – 5 / 8 | 11 – 5 / 8 | 6 | 11 – 3 / 4 | 10.63 | |
12 – 1 / 4 | 6 | 12 – 3 / 8 | 10.63 | ||
13 – 3 / 4 | 6 | 14 | 10.63 | ||
9 – 7 / 8 | 11 – 5 / 8 | 6 | 12 | 10.88 | |
12 – 1 / 4 | 6 | 12 – 3 / 4 | 10.88 | ||
13 – 3 / 4 | 6 | 14 – 1 / 4 | 10.88 | ||
10 – 3 / 4 | 12 – 1 / 4 | 6 | 12 – 3 / 4 | 11.81 | |
13 – 3 / 4 | 6 | 14 – 1 / 4 | 11.81 | ||
14 – 3 / 4 | 6 | 15 – 1 / 4 | 11.81 | ||
11 – 3 /4 | 13 – 3 / 4 | 8 | 14 – 1 / 4 | 12.77 | |
14 – 3 / 4 | 8 | 15 – 1 / 4 | 12.77 | ||
15 – 1 / 2 | 8 | 16 | 12.77 | ||
13-3/8 | 16 | 8 | 16-1/2 | 14.43 | |
17-1/2 | 8 | 18 | 14.43 | ||
13-5/8 | 16 | 8 | 16-1/2 | 14.68 | |
17-1/2 | 8 | 18 | 14.68 | ||
14 | 16 | 8 | 16-1/2 | 15.06 | |
17-1/2 | 8 | 18 | 15.06 | ||
16 | 20 | 10 | 20-1/2 | 17.08 | |
22 | 10 | 22-1/2 | 17.08 | ||
18-5/8 | 22 | 10 | 22-1/2 | 19.74 | |
24 | 10 | 24-1/2 | 19.74 | ||
20 | 24 | 10 | 24-1/2 | 21.12 | |
26 | 10 | 26-1/2 | 21.12 |
Model WC-HNPBC, WC-HWPBC & WC-SWPBC
Casing Size In |
Hole Size In |
Nos. Of Bows | Maximum Od In |
|
---|---|---|---|---|
4 – 1 / 2 | 6 – 1 / 8 | 4 | 5.787 | |
8 – 1 / 2 | 4 | 8.141 | ||
5 | 8 – 1 / 2 | 4 | 8.141 | |
5 – 7 / 8 | 4 | 5.512 | ||
5 – 1 / 2 | 8 – 1 / 2 | 4 | 8.228 | |
9 – 5 / 8 | 4 | 9.094 | ||
6 – 5 / 8 | 8 – 1 / 2 | 4 | 8.228 | |
9 – 5 / 8 | 4 | 9.37 | ||
7 | 8 – 1 / 2 | 4 | 8.189 | |
9 – 5 / 8 | 4 | 9.213 | ||
7 – 5 / 8 | 9 – 5 / 8 | 4 | 9.291 | |
8 – 1 / 2 | 4 | 8.15 | ||
8 – 5 / 8 | 9 – 5 / 8 | 4 | 9.252 | |
12 – 1 / 4 | 4 | 12.008 | ||
9 – 5 / 8 | 12 – 1 / 4 | 6 | 11.87 | |
13 – 3 / 8 | 6 | 13.012 | ||
9 – 7 / 8 | 12 – 1 / 4 | 6 | 11.909 | |
13 – 3 / 8 | 6 | 12.736 | ||
10 – 3 / 4 | 12 – 1 / 4 | 8 | 12.008 | |
13 – 3 / 8 | 8 | 13.031 | ||
11 – 3 / 4 | 12 – 1 / 4 | 8 | 11.89 | |
13 – 3 / 8 | 8 | 13.012 | ||
13 – 1 / 2 | 8 | 13.128 | ||
13 – 3 / 8 | 16 | 8 | 15.669 | |
17 – 1 / 2 | 8 | 17.126 | ||
13 – 5 / 8 | 16 | 8 | 15.689 | |
17 – 1 / 2 | 8 | 17.067 | ||
14 | 16 | 8 | 15.768 | |
17 – 1 / 2 | 8 | 16.909 | ||
16 | 18 – 1 / 2 | 8 | 18.227 | |
20 | 8 | 19.625 | ||
18 – 5 /8 | 22 | 10 | 21.585 | |
24 | 10 | 24.646 | ||
26 | 10 | 25.585 | ||
20 | 22 | 10 | 21.625 | |
24 | 10 | 23.514 | ||
26 | 10 | 25.625 |
WELLCARE non welded bow centralizers are high in quality, developed to comply API 10D specifications for use in the most demanding conditions. The non weld bow centralizers combine the highest restoring force with the lowest starting force. Premium quality bows which are made of special alloy steel with uniform hardness provide optimum performance. The bows with extended profile prevent their hitting against casing collars. The bows are available in a range to accommodate any well profile. Quality steel and non weld design ensure extra strong grip while integral hinges folded on the inside are connected by high strength locking pin for maximum structural robustness. WELLCARE non weld bow centralizers are used to position the casing in the centre of the wellbore in vertically, deviated as well as horizontal wells. High restoring force combined with low starting force is achieved with all bow heights. Their installation on the casing pipe is very convenient. It requires only the placement of the two assembled halves on the pipe and inserting the pin in the end collar hinge. The centralizer when unassembled makes a compact package, reducing the shipping cost. Assembly at site is conveniently done.
Welded bow-spring centralizers are available in two styles :
Specification Guide
Casing Size in | Hole Size in | Nos. of Bows | Maximum OD in | Maximum Compressed OD In | |
---|---|---|---|---|---|
4 – 1 / 2 | 6 | 4 | 7.165 | 5.409 | |
6 – 1 / 4 | 4 | 7.165 | 5.409 | ||
6 – 1 / 2 | 4 | 7.638 | 5.409 | ||
7 – 7 / 8 | 4 | 9.055 | 5.409 | ||
5 | 6 – 1 / 2 | 4 | 7.677 | 5.921 | |
6 – 3 / 4 | 4 | 7.677 | 5.921 | ||
7 – 7 / 8 | 4 | 9.094 | 5.921 | ||
8 – 1 / 2 | 4 | 10.118 | 5.921 | ||
5 – 1 / 2 | 7 – 7 / 8 | 4 | 9.134 | 6.433 | |
8 – 1 / 2 | 4 | 10.079 | 6.433 | ||
8 – 3 / 4 | 4 | 10.079 | 6.433 | ||
9 – 7 / 8 | 4 | 11.102 | 6.433 | ||
6 – 5 / 8 | 8 – 1 / 2 | 4 | 9.331 | 7.575 | |
7 | 8 – 1 / 2 | 4 | 9.724 | 7.969 | |
8 – 3 / 4 | 4 | 10.197 | 7.969 | ||
9 – 7 / 8 | 4 | 11.614 | 7.969 | ||
7 – 5 / 8 | 9 – 7 / 8 | 4 | 10.846 | 8.598 | |
8 – 5 / 8 | 10 – 5 / 8 | 6 | 11.831 | 9.583 | |
11 – 5 / 8 | 6 | 13.799 | 9.583 | ||
12 – 1 / 4 | 6 | 14.272 | 9.583 | ||
9 – 5 / 8 | 11 – 5 / 8 | 6 | 13.819 | 10.626 | |
12 – 1 / 4 | 6 | 14.291 | 10.626 | ||
13 – 3 / 4 | 6 | 15.315 | 10.626 | ||
9 – 7 / 8 | 11 – 5 / 8 | 6 | 13.602 | 10.882 | |
12 – 1 / 4 | 6 | 14.075 | 10.882 | ||
13 – 3 / 4 | 6 | 15.098 | 10.882 | ||
10 – 3 / 4 | 12 – 1 / 4 | 6 | 13.583 | 11.807 | |
13 – 3 / 4 | 6 | 15.472 | 11.807 | ||
14 – 3 / 4 | 6 | 16.024 | 11.807 | ||
11 – 3 /4 | 13 – 3 / 4 | 8 | 15.492 | 12.772 | |
14 – 3 / 4 | 8 | 16.437 | 12.772 | ||
15 – 1 / 2 | 8 | 17.461 | 12.772 | ||
13-3/8 | 16 | 8 | 18.642 | 14.425 | |
17-1/2 | 8 | 19.114 | 14.425 | ||
13-5/8 | 16 | 8 | 18.366 | 14.681 | |
17-1/2 | 8 | 18.917 | 14.681 | ||
14 | 16 | 8 | 18.74 | 15.055 | |
17-1/2 | 8 | 19.291 | 15.055 | ||
16 | 20 | 10 | 21.791 | 17.083 | |
22 | 10 | 24.075 | 17.083 | ||
18-5/8 | 22 | 10 | 23.425 | 19.74 | |
24 | 10 | 26.732 | 19.74 | ||
20 | 24 | 10 | 25.827 | 21.118 | |
26 | 10 | 28.11 | 21.118 |
Model WC-HWBSC/WC-SWBSC
Casing Size in | Hole Size in | Nos. of Bow | Maximum OD in | Maximum Compressed OD in | |||
---|---|---|---|---|---|---|---|
4 – 1 / 2 | 6 | 4 | 7 – 1 / 8 | 5.25 | |||
6 – 1 / 4 | 4 | 7 – 1 / 8 | 5.25 | ||||
6 – 1 / 2 | 4 | 7 – 5 / 8 | 5.25 | ||||
7 – 7 / 8 | 4 | 9 – 1 / 8 | 5.25 | ||||
5 | 6 – 1 / 2 | 4 | 7 – 5 / 8 | 5.76 | |||
6 – 3 / 4 | 4 | 7 – 7 / 8 | 5.76 | ||||
7 – 7 / 8 | 4 | 9 – 1 / 8 | 5.76 | ||||
8 – 1 / 2 | 4 | 10 – 1 / 8 | 5.76 | ||||
5 – 1 / 2 | 7 – 7 / 8 | 4 | 9 – 1 / 8 | 6.28 | |||
8 – 1 / 2 | 4 | 10 – 1 / 4 | 6.28 | ||||
8 – 3 / 4 | 4 | 10 – 1 / 4 | 6.28 | ||||
9 – 7 / 8 | 4 | 11 – 1 / 4 | 6.28 | ||||
6 – 5 / 8 | 8 – 1 / 2 | 4 | 9 – 5 / 8 | 7.42 | |||
7 | 8 – 1 / 2 | 4 | 9 – 5 / 8 | 7.81 | |||
8 – 3 / 4 | 4 | 10 – 1 / 8 | 7.81 | ||||
9 – 7 / 8 | 4 | 11 – 5 / 8 | 7.81 | ||||
7 – 5 / 8 | 9 – 7 / 8 | 4 | 10 – 3 / 4 | 8.44 | |||
8 – 5 / 8 | 10 – 5 / 8 | 6 | 11 – 3 / 4 | 9.43 | |||
11 – 5 / 8 | 6 | 13 – 7 / 8 | 9.43 | ||||
12 – 1 / 4 | 6 | 14 – 1 / 4 | 9.43 | ||||
9 – 5 / 8 | 11 – 5 / 8 | 6 | 13 – 7 / 8 | 10.47 | |||
12 – 1 / 4 | 6 | 14 – 1 / 4 | 10.47 | ||||
13 – 3 / 4 | 6 | 15 – 3 / 4 | 10.47 | ||||
9 – 7 / 8 | 11 – 5 / 8 | 6 | 13 – 5 / 8 | 10.72 | |||
12 – 1 / 4 | 6 | 14 – 1 / 4 | 10.72 | ||||
13 – 3 / 4 | 6 | 15 – 1 / 4 | 10.72 | ||||
10 – 3 / 4 | 12 – 1 / 4 | 6 | 13 – 3 / 8 | 11.65 | |||
13 – 3 / 4 | 6 | 15 – 5 / 8 | 11.65 | ||||
14 – 3 / 4 | 6 | 16 – 3 / 8 | 11.65 | ||||
11 – 3 /4 | 13 – 3 / 4 | 8 | 15 – 3 / 8 | 12.61 | |||
14 – 3 / 4 | 8 | 16 – 3 / 8 | 12.61 | ||||
15 – 1 / 2 | 8 | 17 – 3 / 8 | 12.61 | ||||
13-3/8 | 16 | 8 | 18 – 5 / 8 | 14.27 | |||
17-1/2 | 8 | 19 – 1 / 8 | 14.27 | ||||
13-5/8 | 16 | 8 | 18 – 5 / 8 | 14.52 | |||
17-1/2 | 8 | 19 – 1 / 8 | 14.52 | ||||
14 | 16 | 8 | 18 – 5 / 8 | 14.9 | |||
17-1/2 | 8 | 19 – 1 / 8 | 14.9 | ||||
16 | 20 | 10 | 21 – 5 / 8 | 16.93 | |||
22 | 10 | 24 – 1 / 8 | 16.93 | ||||
18-5/8 | 22 | 10 | 23 – 1 / 4 | 19.58 | |||
24 | 10 | 26 – 3 / 4 | 19.58 | ||||
20 | 24 | 10 | 25 – 5 / 8 | 20.96 | |||
26 | 10 | 21 – 1 / 8 | 20.96 |