| Customization: | Available |
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| After-sales Service: | Repair |
| Warranty: | 1 Year |
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The recoverable whipstock is a special tool for side-drilling through the casing with a window in the casing to complete the well. Its main function is to drill more than two branching holes horizontally in a straight hole, which can be distributed radially at the same or different depths, or to drill a number of branching holes in different directions with incline of 90° to 150°, in a comb pattern .
Structure and working principle:
A recoverable whipstock is usually composed of two parts: a whipstock and a packer. The bottom is provided with a fishing basket, and holes for feeding and recovering the whipstock are arranged on the bevel of the whipstock. The working principle is that the slip body arranged in the outer tube moves along both the radial direction of the inner tube and the axial direction of the inner tube by pushing the high pressure fluid, and the sitting seal on the outer tube is perforated and the casing is occludated to achieve first-stage setting, and the capsule packer is longitudinally expanded to fit with the inner wall of the casing to achieve second-stage setting .
Application scenarios and Advantages:
Retrievable whipers are widely used in the drilling of multi-bottom Wells and branched horizontal Wells. By using recoverable whipstock, it can solve the technical problem that it is difficult to open branch holes in medium and hard rock formation, greatly improve drilling efficiency, and provide guarantee for coal mine safety and efficient production . In addition, the recoverable whipstock also has the advantages of simple structure, convenient operation and high efficiency, which can meet the geological and development needs .
To sum up, recoverable whipstock is an important drilling tool, which plays an important role in the drilling of multi-bottom Wells and branched horizontal Wells through its unique design and working principle.
| Model | Applicable casing | Length mm |
Max O.D mm |
The degree of the slope(°) |
| SZ-118 | 5-1/2" | 3870 | 118 | 3/2.5 |
| SZ-150 | 7" | 4850 | 152 | 3/2.5 |
| SZ-210 | 9-5/8" | 5785 | 210 | 3/2.5 |
| SZ-300 | 13-3/8" | 9286 | 300 | 3/2.5 |
Dongying TIANRUI PETROLEUM Technology Co., Ltd., established in November 2003 and located in the Dongying Economic Development Zone, is an investment project in Dongying City. It is mainly engaged in the research, design, manufacturing and technical services of oil drilling and workover tools. The company consists of six departments and two workshops, namely the design department, the quality inspection department, the market operation department, the comprehensive department, the technical service department, the financial department, the processing workshop and the assembly workshop. It possesses rich R & D and design capabilities as well as manufacturing capabilities in oil drilling and workover tools.
The company covers an area of 18, 400 square meters and has a construction area of 14, 000 square meters, featuring two comprehensive office buildings and four manufacturing workshops. It is fully equipped with large pipe thread lathes, large CNC machining centers, large gantry milling machines, CNC lathes, CNC milling machines, shaper machines, surface grinders, deep hole drilling and boring machines, ordinary lathes, milling machines, mechanical disassembly equipment, a 3m3/min large pump experimental station, ultrasonic flaw detectors, magnetic powder flaw detectors and other processing and inspection equipment.
After years of technical research, a number of technical products have been developed, including wellhead hydraulic lifting equipment, hydraulic oscillators, recoverable guides, composite window milling cones, backrow centralizers, micro-reamers and other drilling tools; Completion tools such as packers, hangers, sliding sleeve tools; Workover tools such as variable diameter scrapers, prints, efficient sleeve milling; And other fishing tools such as removable spears, recyclable fishing baskets, etc. And they have achieved better application effects in the field and gained the trust of users.
Q: Are you a trading company or a manufacturer?A: We are a professional manufacturer, and our company is also a very professional trading company
We can also offer a variety of products.
Q: Can you deliver on time?A: Yes, we promise to provide the highest quality products and deliver them ontime. Honesty is the principle of our company.
Q: Do you provide samples? ls it free or extra?A: Samples can be provided to customers for free, but the shipping cost will beborne by the customer.
Q: Do you accept third-party inspection?
A: Yes, we absolutely accept it.
Q: How do you ensure the quality of your product?A: Each product is produced by a certified workshop, and Lin Xu inspects eachitem according to national QA/QC standards, We can also provide warranty ser-vices to customers to ensure product quality.
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