Akiet High Strength Composite Tubulars FAQs

Are Akiet High Strength Composite Tubulars an ‘off the shelf’ item?

No, Akiet High Strength Composite Tubulars are engineered to the specific loads and requirements of the customer’s application.

 

Are Akiet High Strength Composite Tubulars fragile?

No, Akiet High Strength Composite Tubulars are in fact engineered for rugged drilling environments. Due to the stiffness and elastic nature of the epoxy resin, which holds the fiber matting together, fiberglass composite has high strength and flexibility.

 

Are Akiet High Strength Composite Tubulars UV resistant?

Under normal conditions there no apparent effect of degradation from UV light. Akiet High Strength Composite Tubular properties show no discernable degradation even when subjected to prolonged exposure to sunlight. For prolonged storage in sunlight (more than 3 months) tubulars are best protected with a tarp or UV resistant coating.

 

Are Akiet High Strength Composite Tubulars suitable for applications other than downhole?

Yes, although Akiet High Strength Composite Tubulars are designed for downhole applications, their strength and chemical resistance can be attractive in other applications as well.

 

Are special precautions needed to handle Akiet High Strength Composite Tubulars?

Akiet High Strength Composite Tubulars are designed for the oil and gas industry. No specific precautions are required, however, it is recommended to avoid sharp point loads when handling the tubulars. Low weight will ease the handling during casing, running and handling on the rig floor. Further details are available in the Akiet product handling and installation manuals.

 

Do Akiet High Strength Composite Tubulars become brittle in subzero environments?

Akiet High Strength Composite Tubulars are made with thermosetting resin systems that do not become brittle even at low temperatures. An epoxy with high tensile strain at ambient temperature shall better cope with impact in sub-zero temperatures.  We can design an epoxy-based system specific for sub-zero environments.

 

Are Akiet High Strength Composite Tubulars suitable for ERD (Extended Reach Drilling) practices?

Yes, very suitable due to the limited weight and related friction with the side of the wellbore.  Akiet’s HSCT stiffness naturally avoids problems with buckling.

 

Will Akiet charge for engineering services?

No, Akiet offers composite well design and product engineering services as part of its services within reasonable measures.

 

Can Akiet produce special non-standard diameters and lengths?

Yes, although Akiet products are designed to conform with specific dimensions, other customized diameters are available upon request, with consideration to volume.

 

Is the smooth outer wall influencing the cement bond?

Mud cake removal represents a critical issue when cementing casings. The smoothness helps to wipe the mud from the casing and generate a better efficient cement bond to the casing.

 

Can a cement evaluation be performed?

Yes, it can be evaluated well. The preferred method for cement evaluation is acoustic pulse echo tools (PET): the acoustic pulse echo tools that digitize reflected wave forms can be used reliably to determine the presence of cement behind the High Strength Composite Tubular. The standard cement bond logs (CBL/VDL) is not the preferred method and cannot be interpreted definitively due to the low sonic transmit time through fiberglass pipe.

 

Can an Akiet High Strength Composite Tubular shoe be drilled out?

Yes, High Strength Composite Tubular shoe can be drilled out. Please contact the Akiet representative for details.

 

Can any tool be used for cutting Akiet High Strength Composite Tubular?

No, steel cutters will wear excessively, therefore diamond cutters are recommended.

 

Can Akiet High Strength Composite Tubulars be perforated downhole?

Yes, Akiet High Strength Composite Tubulars can be perforated downhole. Perforation in cemented casing is preferred. Please contact the Akiet representative for details.

 

Can a window be milled through Akiet High Strength Composite Tubular?

Yes, a window can be milled through the composite tubular when the right whipstock is installed to perform a milling operation. Please contact the Akiet representative for details.

 

Does Akiet High Strength Composite Tubulars provide less flow resistance than steel pipe materials?

Yes, one of the key advantages of composite tubulars is that they have a very low friction factor when compared to steel tubulars. This low friction factor is constant throughout the lifetime of the pipe because the material does not corrode..

 

Does Akiet have an inspection/quality control program?

Yes, Akiet has a comprehensive inspection and quality control program starting from raw material receipt, through to finished product and to final delivery. Regular inspections take place throughout the various stages of the manufacturing process. Each product is manufactured in accordance with customer specifications, including quality assessment (trial and testing program) as agreed with customer for specific application.

 

Does Akiet have procedures for handling, delivery and storage?

Yes, Akiet has handling and installation manuals available that include instructions on handling, delivery, and storage of the composite tubulars.  Although Akiet HSCT can withstand the rigours of normal practice.

 

Does Akiet provide casing installation services?

Yes, Akiet will assist the customer with the installation of composite tubulars as safely and efficiently as possible.

 

If a customer desires to install themselves, does Akiet provide training for installation services?

Yes, Akiet provides training on site for the adhesive connection system.

 

How are the Akiet High Strength Composite Tubulars connected and installed?

The High Strength Composite Tubulars are connected with quick-drying adhesives. Without risk of over-torqueing, unlike other manufactured pipe that is exposed to the issue with threaded composite couplings.

 

How are composite tubulars connected to other materials? Are they compatible and interchangeable?

Yes, Akiet High Strength Composite Tubular connection technology has the ability to interface steel-composite, composite-composite and composite-steel and are connected with a quick-drying adhesive for the specific crossover connection. Crossovers are pre-made up and cannot be made in the field.

 

How are composite tubulars manufactured?

The main reason why Akiet HSCT have superior performance, comes from a proprietary rotary casting production technology.

 

What is a High Strength Composite Tubular?

The materials used in Akiet High Strength Composite Tubulars are glass fibers and epoxy resin (a matrix which holds filler (E-glass glass) together when cured). A composite tubular is a laminate made from glassfibers and thermosetting resin. It is commonly known as GRE (Glassfibre Reinforce Epoxy).

 

What is the (specific) weight of composite tubulars?

The specific weight of the Akiet High Strength Composite is 1.80, compare to 7.85 for steel. Strength to weight ratio is at least 2 times better than steel. Glass material and weight varies with size and application, as does the resin bonding type and properties.

 

What are typical applications for Akiet High Strength Composite Tubulars?

Akiet High Strength Composite Tubulars are quite suited to solve corrosion, resistivity logging and extended reach drilling applications. Akiet HSCT can be used for all downhole applications including: geothermal wells, water injection/disposal, oil & gas productions wells, observation wells, salt solution wells, coal bed methane/coal seam gasification wells.

 

Which international standards does Akiet standard casing design follow?

Akiet follows the specific end user standards as agreed upon with our customers.

 

Which mediums can be transported in Akiet High Strength Composite Tubulars?

Due to its superior resistance against chemical attack, most downhole mediums with temperatures less than 100°C. Chemical applications can be confirmed on a case by case specific basis.

 

Which resins does Akiet use?

Akiet High Strength Composite Tubulars are made with epoxy resins

 

Which fibers does Akiet use?

Akiet High Strength Composite Tubulars are made of glassfiber matting with a proprietary weave and orientation.

 

Is your question not answered or included in list above?

Please contact us direct.

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