Oil and Gas Wire Rope

 

Oil and gas wire ropes with higher breaking strength, excellent flexibility, better rotation resistance and extended lifespan are urgently needed with the development of gas and oil industry. Our oil and gas wire ropes are specifically designed to meet the demands of drilling, tooling, and sand-line applications, as well as for use in offshore rigs. We offer a wide range of wire ropes that are well-suited for onshore and offshore applications, and we are committed to delivering products that are both high-performing and safe. All our oil and gas wire ropes undergo rigorous quality testing and are manufactured in compliance with the highest international standards.

 

 

6X19S 35X7 6X37M

 

 

Standard and Custom Well Products

We supply hardware and raw materials, like wire rope, but we also custom-fabricate slings for drilling. Such slings include BOP slings, well-head chain slings, derrick bridles and tong snub lines for customers who would like slings made to order.

 

Service on the Pad

Well service for oil and gas wells presents special rigging needs that we are happy to address. We supply tubing lines and sand lines in imported and domestic varieties. Additionally, we perform spooling and storage services for tubing lines.

 

Sling Recertification and Fall Protection

Pipelines, refineries and oilfield-related manufacturing are heavy users of overhead lifting slings. To meet customer demand we fabricate all sizes and types of lifting slings, including wire rope slings, chain slings, web slings, and round slings. We recommend regular recertification of all lifting slings.

 

Traceability

All materials are fully certified and have full traceability in line with our ISO9001 procedures. All ropes are manufactured to the European standard EN 10204 3.1/LR.

 

 

• Drilling


• Marine riser tensioner


• Offshore cranes and winches


• Platforms


• Deep water mooring


• Various geophysical applications


• Offshore Mooring, Anchoring, Towing


• Drill Line, Casing line, Sand line


• Riser Tensioner


• Rope access offshore

 

 

 

 

Stainless steel oil and gas wire rope is made up of individual wires spun into a strand and has many different wire rope properties and benefits. A number of outer strands are closed over a central core. The number of strands around this core gives different construction of wire their unique characteristics.

 

Constructional Stretch

Stretch is characteristic of all wire ropes. Construction stretch is caused by the adjustment of wires and strands within a wire rope. When load is first applied to a wire rope, the individual strands bed in, this settlement leads to elongation, referred to as permanent construction extension (Constructional Stretch). This results in a permanent stretch and increase in length and varies depending on the initial build of the wire rope, such as the diameter, construction and lay length.

 

Elastic Stretch

The elastic extension of the wire rope (Elastic Stretch) occurs when a load is applied to the end of a rope. "Hookes Law" defines that this stretch is proportional to the load applied, i.e stress is proportional to strain. This applies as long as the yield point is not exceeded, after which permanent deformation takes place. If the yield point is not exceeded, elastic stretch can be fully recovered once the applied load is released, meaning the wire rope will typically return back to its normal length.

 

Calculating Cable Stretch

The modulus of elasticity or resistance to stretch for wire rope will vary upon the wire rope construction. The following stretch calculation can be used as a guide. There are different international standards for calculating the Modulus of Elasticity (E), this should be verified by your structural engineer.

Elastic Stretch = W x L / E x A

Where:

W= Applied Load (kN)

L – Cable Length (mm)

E = Strand modulus of elasticity (kN/mm2)

A = Cross section area of wire rope = Π r²

Where r = diameter of rope/2.

 

Pre-Stretching

If the stretch is critical in the application of the rope, constructional stretch can be eliminated through the process of pre-stretching or pre-stressing. This is when a load is first applied to the wire rope during the manufacturing or swaging process, and the individual strands bed in; this allows the wire to settle under load prior to installation. This settlement leads to elongation, referred to as permanent construction extension, which can be done before the wire rope gets installed.

 

 

Every company has unique rigging needs. As such, we can help select the best wire rope for your industrial application. Consider the following types of applications and their solutions for oil and gas operations:

 

6×19 IWRC Conventional Drill Line

Requires a rope that resists abrasions. The rope is also resistant to crushing and is a safe, fatigue-resistant piece of equipment.

 

6×26 Tubing line IWRC

Well suited for tubing lines and highly resistant to crushing. Inner wires within the rope add to the rope's durability and ability to resist fatigue.

 

6×31 Swaged

Constructed to help speed up the main hoist's travel time during tubing and rod pulling operations. The rope also resists abrasions and crushing.

 

6×7 Poly Core Galvanized

Hostile conditions down a dug hole can damage wire rope considerably. This rope has a clean, smooth operation and is highly resistant to abrasions. This adds up to increased productivity, reduce downtime, and reduce rope changes.

 

 

1. All Size Range: 14 mm to 160 mm (7/16 inch to 6.299 inches)

2. Good resistance to bending fatigue and abrasion

3. High breaking load

4. Excellent structure stability

5. Global service center and fast transpotation

 

 

Strength

Generally, wire rope strength is measured in tons of 2,000 lbs. The breaking strength of wire rope is stated in terms of minimum breaking force (MBF) or nominal (catalog) strength. These represent predicted strengths that have been accepted by the wire rope industry. The minimum breaking force is the force at which a sample wire rope will break when tested under laboratory conditions, while the nominal strength is what the manufacturer guarantees the wire rope will withstand. When subjected to tension a new rope should break at the same or greater force than the one specified for that rope. Moreover, a wire rope should never be operated at the minimum breaking force. This value is used as a guide to select the correct wire rope for new installations.

 

Fatigue Resistance

Wire ropes are also engineered to resist fatigue. Fatigue resistance is the ability of a wire rope to withstand multiple cycles of flexing without breaking. The number of cycles a wire rope can endure before failure depends on a variety of factors, including the type and size of wire rope, the severity of the stress, and the ambient temperature. A large number of wires are used in rope construction to improve fatigue resistance. It factors in wire diameters as well as basic metallurgy. For example, a rope made of many smaller wires will have better fatigue resistance than the same-size rope constructed of fewer larger wires. Smaller wires are more flexible and can bend farther as the rope passes over sheaves or around drums. To counteract the effects of fatigue, ropes must never bend over small sheaves or drums with wire diameters that might kink or strain them. Sheave and drum dimensions are strictly regulated to accommodate all sizes, types, and brands of ropes.

 

Crushing Resistance

External pressure has a direct effect on a rope's cross-section shape, strands, or core by distorting the rope's cross-section. The crushing force applied to the rope by any object can cause the wire strands and core to be squeezed together. This, in turn, reduces the diameter of the rope and its breaking strength. When a rope is crushed, the wires, strands, and core are kept from moving and adjusting normally throughout use. To help prevent this from happening, wire ropes are manufactured with a high degree of crushing resistance. The number of wires per strand, as well as the size and type of wire, are all key factors in providing crushing resistance.

 

Metal Loss and Deformation Resistance

In addition to the above-mentioned qualities, wire ropes are also engineered to resist metal loss and deformation. Metal loss is a result of the wires in a rope rubbing against each other as the rope moves. This can cause the individual wires to wear down, thinning the diameter of the rope over time. Deformation is what happens when the shape of the rope's cross-section is changed because of external pressure. This can cause the wire strands and core to be squeezed together, reducing the diameter of the rope. The most typical kind of metal deformation is peening, which occurs when ropes are stretched, and the exposed wires appear to have been hammered across them. Both metal loss and deformation reduce the breaking strength and fatigue resistance of a wire rope. To combat these effects, manufacturers add extra wires to the strand and use larger-diameter wires in the construction of a rope.

 

Rotation Resistance

When a wire rope is subjected to rotation, the wires, and strands inside it will attempt to straighten out, which causes torque to generate throughout the rope. However, this load-induced torque can be reduced via specifically designed rotation resistant ropes. In rotation-resistant ropes, the lay of the outer strands is in the opposite direction from that of the inner strands, resulting in torques that are in opposite directions and cancel each other out.

 

 

LIJU is the leading Oil and Gas Wire Rope manufacturer in China. Our worldwide distribution centres and service networks are well equipped to offer our customers high-quality elevator wire ropes and customised solutions.

 

 

 

http://www.juli-rope.com/