Eneroil Offshore Drilling Limited

Dlf Phase Iii, Gurugram, Haryana

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.

with experience of 4 decades in the field of oilfield equipment & cementing activity, we have created range of eneroil centralizers to be the perfect cementing equipment for all kind of well cementing job across the globe.

based on the current challenges of well operations, our application engineers have designed cementing equipments 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 centralizers are highly recommended and proves their performance to achieve optimal stand off and centralization.to overcome even the toughest wells challenges, we deliver reliable products, standard quality , highest precision & best performance.

eneroil manufactured casing centralizers are mechanical devices that prevent casing from contacting the wellbore wall for all kind of well cementing jobs.

Eneroils Hinged Non-welded Bow Spring Centralizer is used to position the casing in the centre of the wellbore in both vertical and deviated wells. These Bow Spring Centralizers reduce the effect of channelling by improving cement flow. This results in a highly uniform thickness between the casing and the wellbore. The centralizers are also able to minimise gas channeling by reducing the movement of the pipe before the cement sets in. Additionally, these bow centralizers provide a semi-rigid casing standoff.

Eneroils hinged welded bow spring centralizer is a high-quality welded product that meets or exceeds API 10D specifications. These centralizers combine a very high restoring force with a very low starting force. The centralizers feature bow springs strongly welded to its end collars. This welded design provides excellent downhole durability. Premium quality bows made of a special alloy steel with uniform hardness provide optimum performance and excellent stand-off. The end collars are available in a latch-on design with a high-strength steel-locking pin for maximum structural toughness. With a choice of six different bow heights, a perfect combination for casing/open hole configuration can be achieved.

Eneroil 's Slip On Welded Bow Spring Centralizer is high-quality welded product that meets or exceeds API 10D specifications. These centralizers combine a very high restoring force with a very low starting force. The centralizers feature bow springs strongly welded to its end collars. Premium quality bows made of a special alloy steel with uniform hardness provide optimum performance. The end collars are slip-on types for maximum structural toughness. With a choice of six different bow heights, a perfect combination for casing/open hole configuration can be achieved. Furthermore, the installation of Eneroils slip-on welded spring bow centralizers on the casing pipe is very convenient, as the centralizer can be slipped on the casing pipe from one end at the time of installation.

Eneroil 's Hinged Non Weld Rigid Centralizers are uniquely designed with a flat-bottom U-profile of different depths, which permit an extremely high fluid passage. These positive centralizers may be used for both casing and tubing applications that require concentric casing strings. The straight bows provide nearly 100% stand-off (concentricity) when running inside a deviated cased hole, while the self-locking design of the centralizer ensures a firm hold. Furthermore, the non-welded structure eliminates brittle spots and enhances durability.

Eneroil 's Hinged Welded Rigid Centralizer or also known as Positive Bow Centralizers are uniquely designed with a flat-bottom U-profile of different depths, which permit an extremely high fluid passage. The straight bows provide nearly 100% stand-off (concentricity) when running inside a deviated cased hole. These premium-quality bows are strongly welded to the end collars and are made of a special alloy steel with uniform hardness providing optimum performance. Performance Features Eneroils welded hinged positive bow centralizers are designed for centralising the casing pipe in vertical, deviated, and horizontal wells. High-quality steel alloy bows with flat bottom U-profiles of different depths permit an extremely high fluid passage. The formed U-profile bows provide a superior stand-off and more effective centralisation than conventional bow centralizers. This enables efficient liner hanger and packer setting. These Hinged Welded Rigid Centralizers are highly suitable for stage and surface cementing Hinge locking pins are made of high-strength steel for maximum structural strength. Bows can be configured for any hole diameter with a choice of various standard bow heights for optimum performance and centralisation to suit the outer casing combinations Its high performance characteristics are combined with an easy field assembly

Slip On Welded Rigid Bow Centralizer from Eneroil Offshore is uniquely designed with a flat-bottom U-profile of different depths, which permit an extremely high fluid passage. These Slip On Positive centralizers may be used for both casing and tubing applications that require concentric casing strings. The straight bows provide nearly 100% stand-off (concentricity) when running inside a cased hole, while the end collars, being slip-on types, provide maximum structural toughness. The premium-quality bows are strongly welded to the end collars and are made of a special alloy steel with uniform hardness providing optimum performance. Furthermore, the installation of Eneroils slip-on welded positive bow centralizers on the casing pipe is very convenient, as the centralizer can be slipped on the casing pipe from one end at the time of installation. Performance Features Eneroils slip-on welded positive bow centralizers are designed for centralising the casing pipe in vertical, deviated, and horizontal wells. High-quality steel alloy bows with flat bottom U-profiles of different depths permit an extremely high fluid passage.

Eneroils spiral vane solid centralizers were developed in response to the need for better cementing in highly deviated and horizontal wells. These centralizers are designed to provide optimum flow-by area. A reduced flow-by area between the spiral blades produces a vortex motion of the fluids to increase fluid velocity with direction. Performance Features Eneroils spiral vane solid centralizers provide high impact, shock, and corrosion resistance, which are combined with their tensile and yield strength. The 30 slope of the vane reduces drag and aids the casing in achieving TD. Able to eliminate scraping, gouging, or digging into the formation, and consequently reduce balling between the vanes. Being lightweight, these centralizers are helpful in reducing drag, and therefore are suitable for extended reach drilling (ERD), horizontal and highly deviated wells, where high drag is expected. Suitable for wells where the rotating and reciprocation of casing is anticipated. Able to withstand high wellbore temperatures while providing 100% horizontal stand-off. Enable cement to be evenly distributed around the casing string.

Eneroils straight vane solid centralizers provide the optimal features for achieving a good primary cementing job with maximum casing / wellbore standoff. These centralizers provide the ultimate drag and torque reduction with maximum fluid bypass. Performance Features Eneroils spiral vane solid centralizers provide high impact, shock, and corrosion resistance, which are combined with their tensile and yield strength. Has a low friction factor. Able to withstand high wellbore temperatures while providing 100% horizontal stand-off. Options Eneroils straight vane solid centralizers are available in Steel Alloy (S-24), Zinc (S-26), and Aluminium (S-28) Straight vane steel alloy solid centralizers are constructed of a single-piece of fire and corrosion resistant steel alloy Straight vane zinc solid centralizers are constructed of non-sparking zinc alloy Straight vane aluminium solid centralizers are constructed of high-strength, corrosion-resistant cast aluminium alloy Available in sizes 2 " to 13 Special sizes or combination can be made available on request

Eneroils Slip-on Heavy Duty Spirasliders are designed specifically for highly-deviated and horizontal wells. The steel construction ensures extra strength and superior toughness, while the design of the blades yield minimum friction- reducing drag forces while running in the pipe. The blades are spirally welded onto the sleeves.

Eneroils slip-on stand-off bands are designed specifically for highly-deviated and horizontal wells. The steel construction ensures extra strength and superior toughness, while the design of the blades yield minimum friction- reducing drag forces while running in the pipe. The blades are formed through pressing the sleeves. These stand-off bands undergo a special phosphate coating process to prevent them from rusting; they are also coated with a special epoxy powder. Performance Features Designed for highly-deviated and horizontal wells. Has good impact and ability to reduce drag. Able to resist high side loads. Optimise mud displacement. Achieve high stand-off.

Eneroils rotating solid centralizers are ideal for running casing in irregular well bores. These centralizers guide the casing and provide flexibility for the casing string. The tapered vanes at the top and the bottom reduce drag during running into the casing well bore. The centralizers rotate up and down over the casing, thereby reducing torque. They are additionally able to provide excellent stand-off. The rotating centralizers are constructed of steel and provided with 360 radial fins. Performance Features Ideal for irregular well bores. Suitable for wells where the rotation of casing is required. Suitable for wells where rotation or reciprocation is required during primary cementing. The angled fins create a swirling fluid motion, which eliminates channelling. Able to reduce drag and torque. Provide excellent stand-off.

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. Performance Features Casing, Liner and screens are being run into horizontal and extended-reach wells Under pressured formations may cause differential sticking Options Non weld bow centralizers are available in the sizes 4 1/2 " to 13 3/8 " Any special sizes or combination can be made available on request

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. Product Features Torque reduction is provided by vertical alignment of rollers on the periphery of Roller Centralizer. Used when high torque is anticipated Smooth rotation of the casing facilitates improved cementing and movement of casing to the bottom run in conjunction with high-strength stop collars

Low drag low torque roller centralizer is provided with a combination of two sets of rollers on the vane, two rollers are placed axially in the centre, in addition, one horizontal roller on top and bottom are provided. When centralizer moves inside the hole, vertical roller in the centre reduce drag forces and the horizontal roller on the top and bottom aids in reducing the torque to enable smooth rotation of the string. Performance Features Used when high torque low drag is anticipated Low torque low drag roller centralizers enable smooth rotation and running of casing to the bottom. Options Non weld bow centralizers are available in the sizes 4 1/2 " to 13 3/8 " Any special sizes or combination can be made available on request

Eneroil 's spiral vane thermoplastic centralizers are manufactured using engineered material and are designed for the maximum durability, drag, and friction downhole achievable in a centralizer. Additionally, these centralizers have lower friction factors, a rotational torque reduction, and increased abrasion resistance for a maximum stand-off. Spiral vanes help enhance hole-cleaning by using a maximised flow-by area. The vanes overlap the entire 360 open-hole circumference, which creates a vortex motion to increase fluid velocity with direction. Even without rotation, the vanes are able to induce turbulent flows for an improved cutting and filter cake removal. Performance Features Eneroils spiral vane thermoplastic centralizers provide high impact resistance as well as chemical and high temperature resistance. The extra length of the vanes provides maximum centralisation, a high stand-off, and increased annular turbulence. Its high performance characteristics are combined with a quick and effortless installation.

Eneroil 's spiral vane thermoplastic centralizers with swage metal ring are manufactured using engineered material with a swaged mild-steel ring both on the top and the bottom end which are designed for the maximum durability, drag, and friction downhole achievable in a centralizer. Additionally, these centralizers have lower friction factors, a rotational torque reduction, and increased abrasion resistance for a maximum stand-off. Performance Features Eneroils spiral vane thermoplastic centralizers with swage metal rings provide high impact resistance as well as chemical and high temperature resistance. The extra length of the vanes provides maximum centralisation, a high stand-off, and increased annular turbulence. Its high performance characteristics are combined with a quick and effortless installation.

Wellbore Wipers Consists of loop wire cables of tempered steel laced into a collar, these wipers clean the well bore efficiently by permitting removed filter cake to pass thereby providing excellent reinforcement to the cement column especially under close spacing. Performance Features Wellbore Wiper is a hinged collar featuring high strength steel wire cables looped in overlapping manner to produce an uninterrupted wiping action during pipe rotation Wiper is highly renowned for its unique features like easy to clean, highly efficient and perfect dimensions Eneroil Wellbore Wiper is manufactured using contemporary technology with quality tested raw material

Eneroils Cement Baskets consists of flexible steel spring bow welded to slip-on collars. Bows are hardened and tempered for maximum strength and uniformity. It is run on casing or liners above weak or porous formations to provide protection from hydrostatic pressure generated by the cement column. Its overlapping metal fins provide flexibility and fluid passages while maintaining optimum support characteristics. Performance Features These cement buckets consist of heavy-duty canvas liners and concentrated with high strength and flexible steel staves which are seated on the steel slip-on end collar. Cement basket has the capability to help in premature cement hydration. This is to check the hydro-static fluid column at the point of loss zone or weak formation

Eneroil Hinged Spiral Nail Stop can be used in both upset and non-upset casing to provide maximum clearance during rotation. It has a groove in the middle into which a spiral nail can be driven for improved grip on the casing. The broader band firmly grips the collar into position around the casing. Performance Features This Hinged Spiral Nail Stop Collar is hinged at two places 180 degrees apart and one spiral nail in each half is driven between collar and the casing. It tightens the Collar to the casing firmly. They can be latched on the casing pipe without having to be slipped on at the end of the casing pipe allowing easy installation These are most effective where low annular clearance is encountered.

Eneroil Stop Collar with Set Screw has a high cost-utility ratio. This hinged collar with a row of set screws positions easily and firmly around the casing. The combination of set screws gives a firm grip to the stop collar and when tested as per API RP 10D-2 they provide high holding force. Performance Features Hinged Set Screw Stop Collars is hinged at two places 180 degrees apart and gripping force is applied by a single row of set screws holding the collar to the casing It tightens the Collar to the casing firmly They can be latched onto the casing pipe without having to be slipped on at the end of the casing pipe allowing easy installation These Stop Collars provide operational flexibility for numerous well applications It is easy to install

Eneroils Slip-On Heavy Duty Cast Iron Stop Collars with Set Screws are available in the size range 27/8 " to 20 ", this device has a high cost-utility ratio. This is a heavy duty cast iron device single piece seamless construction has the highest holding force. Performance Features Heavy Duty Device single piece seamless construction with single side beveled It is used when holding force requirement is very high It is easy to install. Options Available from sizes 23/4 " to 20 " sizes configurations. Any special sizes or combination can available on request

Eneroil Slip-On Stop Collar with Set Screws Single Side Beveled has a high cost-utility ratio. This hinged collar with a row of set screws positions easily and firmly around the casing. The combination of set screws gives a firm grip to the stop collar and when tested as per API 10D-2 Specifications they provide high holding force. Performance Features Heavy duty single piece seamless construction with single side beveled. The bevel provides a good lead-in edge for a rigid centralizer It is used when holding force requirement is very high Recommended for small hole operations and predominantly used on both sides of rigid or semi-rigid centralizers It is easy to install