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A drilling stabilizer is a piece of downhole equipment used in the bottom hole assembly (BHA) of a drill string. It mechanically stabilizes the BHA in the borehole in order to avoid unintentional sidetracking, vibrations, and ensure the quality of the hole being drilled.
It is composed of a hollow cylindrical body and stabilizing blades, both made of high-strength steel. The blades can be either straight or spiralled, and are hardfaced for wear resistance.
Several types of drilling stabilizers are used in the oilfield today. While integral stabilizers (fully machined out of a single piece of steel) tend to be the norm, other types can be used, such as :
Replaceable sleeve stabilizer, where the blades are located on a sleeve, which is then screwed on the body. This type can be economical when no repair facilities are available close to the well being drilled and air freight has to be used.
Welded blades stabilizer, where blades are welded onto the body. This type is usually not advised on oil wells due to the risks of losing blades, but is regularly used when drilling water wells or on low-cost oilfields.
Usually 2 to 3 stabilizers are fitted into the BHA, including one just above the drill bit (near-bit stabilizer) and one or two among the drill collars (string stabilizers).
Size | Crown OD | Neck OD | ID | Neck Length | Crown Length | Overall Length | Blade Width | Angel | Radius | |||||||||
8 1/2'' x 6 1/2'' x 2 13/16'' x 100'' | 8 1/2'' | 6 1/2'' | 2 13/16'' | 30'' | 18 | 100'' | 2 3/8'' | 30° | 4'' | |||||||||
12 1/4'' x 8'' x 2 13/16'' x 100'' | 12 1/4'' | 8'' | 2 13/16'' | 30'' | 18 | 100'' | 3 1/2'' | 30° | 4'' | |||||||||
12 1/4'' x 8 1/4'' x 2 13/16'' x 100'' | 12 1/4'' | 8 1/4'' | 2 13/16'' | 30'' | 18 | 100'' | 3 1/2'' | 30° | 4'' | |||||||||
14 3/4'' x 8 1/2'' x 2 13/16'' x 100'' | 14 3/4'' | 8 1/2'' | 2 13/16'' | 30'' | 20 | 100'' | 3 1/2'' | 30° | 4'' | |||||||||
14 3/4'' x 9 1/2'' x 3'' x 100'' | 14 3/4'' | 9 1/2'' | 3'' | 30'' | 20 | 100'' | 3 1/2'' | 30° | 4'' | |||||||||
16'' x 9 1/2'' x 3'' x 100'' | 16'' | 9 1/2'' | 3'' | 30'' | 20 | 100'' | 3 1/2'' | 30° | 4'' | |||||||||
17 1/2'' x 9 1/2'' x 3'' x 100'' | 17 1/2'' | 9 1/2'' | 3'' | 30'' | 18 | 100'' | 3 1/2'' | 30° | 4'' | |||||||||
22'' x 9 1/2'' x 3'' x100'' | 22'' | 9 1/2'' | 3'' | 30'' | 18 | 100'' | 4'' | 30° | 4'' | |||||||||
26'' x 9 1/2'' x 3'' x 100'' | 26'' | 9 1/2'' | 3'' | 30'' | 18 | 100'' | 4'' | 30° | 4'' | |||||||||
26'' x 9 1/2'' x 3'' x 116'' | 26'' | 9 1/2'' | 3'' | 30'' | 24 | 116'' | 4'' | 30° | 4'' | |||||||||
Stabilizer forgings can be designed according to customer's special requirements. | ||||||||||||||||||











1) How can I place order?
A: You can contact us by email about your order details, or place order on line.
2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.
3) What's the order procedure?
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.
4)How do you take care when your clients received defective products?
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.
5)How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.
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