Roller Centralizer

Eneroil developed the Solid Body Low Drag Roller Centralizer as axial drag friction reduction tool. The contact area of the rollers with the casing or borehole wall functions well in under pressured conditions, where the risk of differential sticking is high. The Low Drag centralizer with steel rollers helps to avoid ploughing through wellbore material that has settled, alleviating major drag problems in deviated and horizontal wells. Solid Body Low Torque Roller Centralizers are specifically built to run in an inclined or horizontal section. The rollers outside diameter are kept slightly larger than the centralizer blades outer diameter. When casing equipped with Solid Body Low Torque Roller Centralizer runs into the deviated or horizontal hole, sliding friction between the casing and the borehole is converted into rolling friction. In case of irregular hole diameter, the borehole wall has an impact force on the spiral centralizer during running casings, the use of rollers reduce this impact.

Eneroil Offshore Offers full range of casing centralizer which includes Bow Spring Centralizer(welded / Non-welded), Solid Centralizers, Solid Rigid Centralizers, Positive Centralizers, Gemoco Centralizers, Roller centralizers and Thermoplastic centralizers.All the products are of high quality and comprises of the standard set by API and ISO.

Centralizers are mechanical devices that prevent casing from contacting the well bore wall. A continuous 360-degree annular space around casing allows cement to completely seal the casing to the borehole wall. Eneroil Centralizers are renowned in the Oil & Gas industry for their standard quality and performances. Our range of Casing Centralizer includes: 1. Bow Spring Centralizer 2. Single Piece Centralizer 3. Solid Rigid Centralizer 4. Roller Centralizers 5. Thermoplastic Centralizers Based on the current challenges of well operations, our application engineers have designed cementing equipment that suits larger variety of well applications and this range includes Welded, Non-welded, Rigid, Semi-rigid, Roller centralizers, Bow type centralizer along with our latest masterpiece - Single Piece centralizer & Thermoplastic centralizer. Eneroil manufactured Casing Centralizers are mechanical devices that prevent casing from contacting the wellbore wall for all kind of well cementing jobs.

Hinged Non-welded Casing Centralizer Product Description Casing centralizer is one of the necessary conventional casing accessories, upon well operationscompletion, the rational use of casing centralizer can play the role of:Reducing lower casing resistance phenomenon, making the casing smoothly down to the design position; Making casing centralizer centered within the well; Reducing the sticking phenomenon to make the annular space hydrostatic pressure balanced; Reduce channeling, improve the mud replacement efficiency, thus improve the cementing quality. The reset force of double bow type centralizer is higher than that of single bow centralizer, centering centering performance is better than that of single bow type. Bow-spring centralizer 1.These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical, Horizontal and Deviated well 2.Premium quality Bows are made of special alloy steel and hot formed in totally controlled heat treatment plant to achieve the uniform hardness all over 3.Spec and performance index of bow spring casing centralizer meet API Spec 10D. The woven centralizer is connected by pin when in use, the unfolded centralizer can be stacked flatly for convenient storage and transportation. Rigid roller centralizer Rigid casing centralizer is used in deviated wells and horizontal wells. There are several blades on the rigid roller centralizerthat can keep casing from contacting the wellbore wall Roller rigid centralizer which is most suitable for highly deviated wells and horizontal wells has two or three rollers in each blade. It can change slipping friction to rolling friction, so the Roller rigid centralizer greatly reduces the friction between casing and wellbore wall and let casing go to desired position smoothly. Cast aluminum centralizer: The smooth spiral 360 overlap solid vane design of centralizers provide max wall contact will not damage wellhead equipment, has high impact and shock resistance comand fluid swirl. The 30slope from the body to the height of the vane will eliminate scraping, or digging into the formation. The solid cast aluminum centralizers bine with high tensile and yield strengths

Concrete Mixers Drum: Constructed of rolled steel plateand steel end plateswelded together with machined roller path.A central cast iron gear ring is fitted in segments.Special abrasiveresisting blades are provided for perfect mix. Strip: The fully automatic loader is designed to give a steep angle of feed. A shakeris is fitted to assist the discharge. Watertank:Self measuring type is fitted on the frame of the mixer. Transmission:Suitably encased bushed roller chain with machine cutsprokets driving directly on the drive shaft. In the drum roller assembly each roler is mounted with renewable bearings. Chassis:Strong all steel welded constructions with swivelling front axle provided with four iron wheels. Luberication is by means of grease ripples. Note:All moving parts are enclosed affording complete protection to operator and immunity from weather.

Composite Centralizer Composite centralizer is used during running and cementing operations to centralizer casing. Casing Composite centralizer is used during running and cementing operations to centralizer casing. Made of advanced composite, the one-piece centralizer has a low co-efficient of friction, it is heat resistant and highly durable which greatly enhances cementing operations. If you have any question on casing centralizer, composite centralizer, hinged welded centralizer, aluminum spiral vane solid rigid centralizer and bow spring centralizer etc. We will give the professional answers to you. 1.Spiral Vane Roller Composite Casing Centralizer consists of rigid body, on which machined spiral blades. 2.There are made of advanced composite that has low coefficiency of friction, it is heat resistant and high durable, fully heat treated rollers fixed on each spiral blades. 3.Because of rigid body and rolling friction between the rollers and inside of well or casing. 4.The capability of the Casing roller Centralizer is better than others of all.Casing Roller/Wheeled composite centralizers are mainly used for big high Roller, high deviated wells and horizontal wells, to centre casings. 5.CasingRoller Composite Centralizers can also remove wellbore cake and improve mud replacement efficiency etc. 6.Roller Composite Centralizers provide superior wear resistance and have been proven to remain functional throughout the life of the well and can aid in casing/tubing retrieval. 7.Precision-machined inside diameter fits over the casing through the complete API tolerance range, providing excellent rotational performance in mud. 8.When running casing through open hole, the systems smaller roller-contact area reduces the risk of differential sticking and maintains standoff . 9.The roller/axle relationship ensures that axle shear stresses remain within elastic limits, preventing permanent deformation. 10.Axles are crimped in place, eliminating the welding process, while ensuring the rollers cannot break free and fall into the wellbore. 11.The systems high-quality construction materials improve high-pressure/high-temperature capabilities. 12.Roller Composite Centralizers are available in sizes 4-1/2" to 20". 13.Any special sizes are available on request. Zhongshi manufacture casing centralizer, cementing basket, float equipment, cementing head, cementing plug and stage collar etc. We have 19 years manufacturing experience of petroleum machinery products till now.

Sucker rod roller guides will centralize the rod string in your tubing and the rolling action of the wheels inside your tubing walls during stoking, reducing friction and wear caused by the rods slapping or rubbing your tubing. They centralizer the rod string in the tubing, and the rolling action of the wheels inside the tubing walls during stroking reduces friction and wear caused by the rods slapping or rubbing the tubing. With proper use of the Wheeled Rod Guidesand effective chemical treatment programs, several operators have extended by an average of four times the operating periods between having to pull and service wells because of sucker rod or tubing wear. Wheels are set vertically and at 45-degree angles to each other, along the axis of the Sucker rod roller guides body. we are a professional manufacturer of oil downhole tools , high quality and reasonable price . Any problem about our products , welcome here .

Type: Nylon sucker rod centralizer, anti- partial-wear sucker rod centralizer, roller type sucker rod centralizer Size: 5/8", 3/4", 7/8", 1", 1-1/8" Ucker rod centralizer used in pumping well, it's a tool which can set upright the sucker rod, and protect the sucker rod wiping with tubing pipe, we can product wheel centralizer, rod shaped centralizer, twist centralizer. Operational principle: 1. Wheel centralizer: When the sucker rod works the wheel rolls on tubing inside. It can avoid the sucker rod to rub with the tubing pipe. 2. Rod shaped centralizer: When the sucker rods work, nylon block touches the tubing inside, it can avoid the sucker rod to rub with the tubing pipe. The nylon block can rotate, then the rub is even wear. The user only change the nylon block replace rod body, can save fabrication-cost. 3. Twist centralizer: Cost of it is low, operate easily.

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