Welcome to Shandong Changfa Steel
Slotted Pipe
Classification :
Oil country tubular goods
PRODUCT DETAILS
Description
Slot and perforate on the pipe body to be slotted pipes. The types of slot are Perforated, Rectangular slotted, Trapezoid slotted, Bridge slotted, Wire wrapped screen, Mechanical cutting, Compound slotted pipe.
The slotted pipe is using in oil exploration to prevent sand, decrease oil well repaired, increase oil well’s strength, integrality and stability of keeping off sand.
1.Casing slotted pipe specification:
O.D.: Casing: 4 1/2″-20″ (114.3mm-508mm)
Tubing:1.05″-41/2″(26.7mm-114.3m)
Length:R1:4.88-7.62M,R2:7.621-10.36M,R3:10.36-14.63M
W.T.: 0.205” – 0.875” (5.21mm- 22.22mm)
Product standards: API 5CT, BS EN ISO11960, NFM87-207, JIS G3439, ISO 4270, GOST 632-80
Material: H40, J55, K55, N80-1, N80Q, R95, L80-1, L80-9Cr, L80-13Cr, C90, T95, C110, P110, Q125
2. Thread type:
Casing: STC, LTC, BTC etc.
Tubing: NU, EU, XL, PH-4, PH-6, LTC, STC, BTC etc.
3. Slotted type
(1)Straight Slots
Cut at a right angle to the liner, this slot type shows the same diameter from the inside to the outside of the wall. Although straight slots are cheaper to produce, they are less effective in sand control compared to keystone slots.
(2)Keystone Slots
Cut at a slight angle, keystone slots, or tapered slots, are larger on the inside than on the outside, making sure that any particle entering the slot can pass through freely without clogging the slot.
Keystone slots are more expensive to than straight slots, but lower the risk of production losses due to plugged liner slots.
(3)Slot Patterns
Whether you want your slotted pipe with a line, staggered, gang, overlapping, horizontal, or any other pattern, we can cut them all.
Among all slot patterns, the following three are the most common.
(4)Line (Straight) Pattern
In the line pattern, slots are placed evenly in identical bands around the pipe, forming straight lines of slots across the length of the slotted liner.
(5)Single-Slot Staggered Pattern
In the single-slot staggered pattern, bands of evenly spaced slots are placed around the pipe. Slots in different bands are offset (staggered) to each other.
The single-slot staggered pattern preserves the strength of the pipe and provides an even distribution of the slots over the area of the pipe.
(6)Gang Pattern (Multiple Staggered Pattern)
While having the same overall layout as the single-slot staggered pattern, the gang pattern places two slots, cut at close proximity, instead of just one slot at each position.
Slotted pipe with a multiple staggered pattern has been shown to withstand higher torque during installation and provide better resistance to deformation under thermal load compared to the single-slot staggered pattern, making it well suited for application in steam assisted gravity drainage (SAGD) applications.
4. Assurance
API/ISO quality system, SGS, DNV, BV, Moody third party inspection welcomed
Specification
| API Casing | ID | Length | Slot Length | Slot | Slot width | Slot Tolerance | Valid Filter Area |
| mm | m | mm | No.No./m | mm | cm/m |
Packing and shipping
The company is mainly engaged in the production and processing of steel pipes, with a complete range of products, including stainless steel pipes, welded pipes, seamless steel pipes, etc. It also produces steel plates, steel coils, steel strips, and profiles.
Technology
APPLICATION
The company is mainly engaged in the production and processing of steel pipes, with a complete range of products, including stainless steel pipes, welded pipes, seamless steel pipes, etc. It also produces steel plates, steel coils, steel strips, and profiles. It is one of the large steel manufacturers in China, with large warehouses in multiple cities across the country, abundant supply of goods, superior quality, reliable quality, and honest operation.
FACTORY
The company is mainly engaged in the production and processing of steel pipes, with a complete range of products, including stainless steel pipes, welded pipes, seamless steel pipes, etc. It also produces steel plates, steel coils, steel strips, and profiles. It is one of the large steel manufacturers in China, with large warehouses in multiple cities across the country, abundant supply of goods, superior quality, reliable quality, and honest operation.
FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q5:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
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Address: Liaocheng Economic and Technological Development Zone, Shandong Province
