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  • Integral elastic centralizer

Integral elastic centralizer

Integral elastic centralizer , also named spring centralizer,suitable for horizontal well , in highly deviated Wells and long sections.

  • Production cycle: 7-30days
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Product introduce

Elastic centralizer is often used in oil and gas fields to keep the casing centered in the well to improve the cementing quality.

The existing elastic centralizer is mainly divided into welding type and clasp type.

Its disadvantages are as follows: due to the welding structure or clasp structure, its firmness is affected by many aspects, and it may fall off in use, bringing hidden dangers to the use of centralizer.The traditional elastic centralizer can also bear limited pressure, which is easy to be damaged when the pressure is too high. Moreover, when the elastic centralizer needs to shrink internally through the smaller diameter section, its elasticity and strain are insufficient, which makes it difficult for the casing to be centered in the well and greatly affects the cementing quality.

Therefore, puyang sanli integrity oil equipment co., LTD. Independently developed a new type of integral elastic centralizer to effectively solve the use of the site problems.

Compared with other types of centralizer, this new type of centralizer has the characteristics of beautiful structure, light weight, strong centralizing force, not easy to fall off and wide application range, which greatly improves the cementing quality.

Product features

1. Suitable for horizontal well design in highly deviated Wells and long sections.

2. No separated components or welded parts, completely eliminating the possibility of fishing.

3. High deviation clearance ratio (+85%) and high resilience.

4. Complete casing fit in the downsizing section.

5. The design is the same size as the downhole, with no initial downhole resistance, low friction and low torque.

6. The righting bar can achieve the maximum lateral support.

Technical parameters

Specifications model

Inner diameter(mm)

Ourer diameter(mm)


Number of shrapnel

Wall thickness(mm)

4 1/2〃×6〃
350 5 4
7"×8 1/2"
215 350 6 4
7〃×8 3/8〃
212 350 6 4

7〃×9 1/2〃

181 241 350 6 4
7〃×9 7/8〃


350 6 4

7 5/8〃×9 1/2〃
241 350 6 4

9 5/8"×12 1/4"
247 311 400 6 4

10 3/4〃×12 1/4〃
275 311 400 6 4

13 3/8〃×16〃
345 406 500 6 4

13 3/8"×17 1/2"
345 444 500 6 4

Office and workshop show

Puyang Sanli Integrity Oil Equipment Co. LTD,is a standardized and reformed enterprises of Sinopec Zhongyuan Oilfield.

It is a modern high-techentity with the capacity of  development, production and sales. The company is mainly engaged in drilling & oil producing equipment and its accessories, drilling & oil producing chemical auxiliaries, solid control equipment, and cementing tools, as well as providing professional drilling and oil producing technical services and oilfield engineering construction services.

All our products have passed the API 10D certification,also we have the certification of ISO 9001 and ISO14001,etc....


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