news

• 2016-10-11

  Benefits Of Slip On Cast Rigid Centralizer

  The rigid centralizer is made of steel or aluminum body construction with casting technology.This kinds of centralizer is with straight blades and spiral blades which are to help clean the fluid and distribute the cement in the wellbore.

• 2016-10-09

  API Certified Close Tolerance Casing Centralizer

  The close tolerance casing centralizer is one of casing centralizers,sometimes we call it slip on welded casing centralizer.This kind of centralizer is well suited for the need of a close tolerance centralizer for use in tight annulus applications where there is some well in a tight spot.The great advantage of casing centralizer is enough restoring forces after passing through those restrictions, while keeping the starting and running forces at a minimum.

• 2016-09-27

  What You Know About Welded Bow Centralizer

  Puyang Zhongshi Group supplies several styles of welded bow centralizers with hinged collar and slip on collar.According to production experience from us and purchasing experience from customers,it is better choice to use the hinged welded bow centralizer whose feature is easy to be installed over stop collars or couplings on all standard casing grades and provide casing centralization in the wellbore for vertical and horizontal wells.

• 2016-09-20

  Arranging Casing Centralizer in Casing String When Running into Well

  Casing centralizer is designed to help operators to complete a sucessful primary cement job.At the same time,these centralizers can help land the casing string to planned depth in the well and remove the mud from the wellbore.Therefore proper casing centralizer selection can be important for improving cementing quality in casing string.

• 2016-09-09

  How to Place Casing Centralizer

  Casing centralizer is installed in order to keep the casing in the center of wellbore while cement is poured between casings and well walls.The rigid placement of casing centralizers can better casing standoff,which enables mud to leave the casing for high quality cementing. The import task that both operators and service companies face is to choose the right type of centralizers and place the right amount at the optimum positions on the casing to achieve a good standoff profile.

• 2016-08-30

  Launching New Style Single Piece Bow Spring Centralizer

  The single piece bow spring centralizer is higher restoring forces which exceeds API specification 10D,one-piece casing centralizer from Puyang Zhongshi Group in China.The kinds of bow spring centralizer is suitable for vertical and horizontal wells.The one piece construction of bow spring centralizer can withstand great forces, remain intact, and never leave debris in the well.

• 2016-08-16

  PYZS Non Welded Semi Rigid Centralizer

  Semi rigid centralizer is designed and maufactured according to API Specification 10D,but the kinds of rigid centralizer from Puyang Zhongshi Group (PYZS) with API 10D certificate for many years features far up to the performance standard set forth in API Specification 10D.From the appearance of centralizer,the non weld semi rigid centralizer is mistaken for bow spring centralizer,but the excellent and uniquely profiled bows offer the desirable features in bow spring centralizer and rigid centralizer for operator in cementing job of oilfield at the same time.

• 2016-08-09

  The Advantages of Straight Blades Solid Rigid Centralizer

  Puyang Zhongshi Group manufactures straight blades solid rigid centralizer which is made of one piece high grade corrosion resistant casting steel.Features of casting steel solid rigid centralizer are high impact and shock resistant,high tensile and yield strength,easy installation and less flow restriction.These rigid centralizers are used where casing centralization is the main consideration, such as to centralize large casing strings to facilitate the cutting of casing during well abandonment.

• 2016-08-02

  One-Piece Rigid Centralizer Minimizing Differential Sticking

  Designed to provide centralization and standoff in deviated and horizontal wells,this kinds of one-piece rigid centralizer can minimizes differential sticking.In the range of one-piece rigid centralizers,there are available in multiple sizes and blade configurations.The one-piece rigid centralizer reduces the friction when running casing for the smooth configurations in the well.The rigid centralizer is hold between two stop collars to reduce torque.

• 2016-07-26

  Puyang Zhongshi Group Supplies Different Types of Casing Centralizer

  Casing centralizer is as cementing tool of drilling process,whose roles are to centralize the casing towards, toward the center of bore and remove the fluid.Generally speaking,bow spring centralizers and solid rigid centralizers are available during cementing operation.Casing centralizers are tested according to API Specification 10D to prove that these centralizers can undergo high restoring force encountered when running casing and can provide high wear resistant needed for casing centralization.