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Near Bit Stabilizer And String Stabilizer
Integral Blade Stabilizer (IBS) is a one piece construction manufactured from high strength alloy steel (non-magnet steeloptional). It prevents differential sticking of the drillstring by stabilizing the BHA and keeping drill collars and drill pipes away from the borehole wall.
The Technicals:
Bit Size (in) | Working OD (mm) | End OD of body(mm) | ID (mm) | Length (mm) | ||||
Drill string type | Near bit type | |||||||
Top | Down | Top | Down | |||||
6 | 152.2 | 121 | 51 | 1200 | 3 1/2 REG | |||
6 1/4 | 158.7 | |||||||
6 1/2 | 165.1 | |||||||
7 1/2 | 190.5 | 159 | 57 | 1600 | NC46 | 4 1/2 REG | ||
7 7/8 | 200 | |||||||
8 3/8 | 212.7 | 159 | 71 | 1600 | NC46 | |||
8 1/2 | 215.2 | 159 | ||||||
8 3/4 | 222.2 | |||||||
9 1/2 | 241.3 | 178 | 1600 | NC50 | NC50 | NC50 | ||
9 5/8 | 244.5 | 1800 | 6 5/8 REG | |||||
9 7/8 | 250.8 | |||||||
12 1/4 | 311.2 | 203 | 76 | 1800 | NC56 | NC56 | NC56 | 6 5/8 REG |







1. Cartons Without Pallets.
2. Cartons With Pallets.
3. Double Woven Bags
Or as buyer’s requirements.


1. We possess a 24 hr response system to provide convenient, fast, and effective pre-sale, during sale and after-sale service.
2. Our promise: Any equipment sold by Dongying Robust at any place in the world, we will provide after-sale service promptly and efficiently. Any equipment component damaged by manufacturing defect or quality problem during the warranty period, Dongying Robust will bear the direct cost of the damaged parts.
3. Warranty period: 18 months from the day that the unit leaves factory or 12 months from the date that the unit is put into use (choose the earliest one which comes to an end as the calculation standard).




Dongying Robust Petroleum Equipment Co., Ltd. is located in Dongying City, Shandong Province.
We are a professional equipment company on research, design, productionand sales.
We are a first class authorized company of Sinopec, and member of CCPIT and CCOIC.
We have strong technical force, advanced processing equipment, and engage in technicalexchanges and cooperation with foreign companies and Universities.
Our main products are PDC drill bit, cementing equipment, OCTG, drilling equipment,oil mining equipment and well control system.
We have explored theinternational market, provided high-quality products, competitive prices and excellentservice in recent years.
Our products are exported to Europe, America, theMiddle East, South America, Southeast Asia, Australia etc, obtained the customer affirmation and the faith.
We always focus on good quality and excellentservice, comply strictly with international trade practice, to be aworld-class petroleum equipment supplier.

1. Are you manufacturer or trader company?
We are manufacturer and we could supply more professional technical services and goods.
2. The goods are new or used? if you will make technical drawing and production plans for us?
All our goods are new ones, the production schedule will offer to you once getting your purchase order.
3. Do you have related inspection equipments?
Yes, our factory is equipment all test equipments, and I could send their pictures and test documents to you.
4. Could you tell me if your price includs the third party inspection charges?
No, our price do not include the third party inspection charge, and we will notice on our Quotation.
5. Will you arrange to install and train?
Yes, Install and debug the equipment;
Train the first-line operators on site
6. Where did your products sell out?
United States, Canada, Mexico, Venezuela, Colubia, and other South American Region
Russica, Azerbaijan and Central Asia Countires
UAE, Saudi Arabia and Mddle East Counties
Contact us if you want more:
Dongying Robust Petroleum Equipment Co.,Ltd
Augustus Zhang
Sales and Marketing Manager
Email: augustuszhang(at)163.com
Whatsapp(Mobile):+86-150 6600 4518
Website: www.cnrobust.com

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