Flow capacities of screens and slotted liners

- Feb 18, 2019-

Fig. 7 shows the pressure drop associated with commercial wire-wrapped screens. Because all have similar designs, there is little difference in performance from one manufacturer to another. These flow capacity tests were performed using water containing no plugging material. The data indicate that all screens have exceptionally high flow capacities. Flow testing with slotted liners revealed that their flow capacity was related to the slot density rather than the screen diameter. Their flow capacities are typically less than half that of wire-wrapped screens with the same diameter. Note that the flow rates were measured in increments of B/D/ft of screen. 


On the other hand, wire-wrapped screens are fabricated with keystone-shaped wire that allows a particle to pass through the screen if it can traverse the minimum restriction at the OD of the screen. The keystone design can be observed in Fig. 3.

Flow testing with slotted liners revealed that their flow capacity was related to the slot density rather than the screen diameter. Their flow capacities are typically less than half that of wire-wrapped screens with the same diameter. Note that the flow rates were measured in increments of B/D/ft of screen. For flow rates that are typical of most wells, the pressure loss through the screen is negligible, provided that they are not plugged. Slotted liners are more easily plugged than wire-wrapped screens because the slots are usually cut parallel to each other.


Specification
item
value

ASTM A106-2006, ASTM A213-2001, ASTM A210-1996, ASTM A1020-2002, ASTM A182-2001, ASTM A213M-2001, ASTM A179-1990, ASME B36.10M-2004, ASTM A199, ASME B36.19M-1985, BS 1387, BS 1139, BS 31, JIS C8305-1999
Grade
Q345

2.5mm - 75mm
Section Shape
Round
Outer Diameter
32mm - 630mm
Place of Origin
China

Shandong
Application
Oil Pipe

Hot Rolled

API

Copper Coated
Special Pipe
API Pipe
Alloy Or Not
Non-alloy
Tolerance
±1%
Type
Seamless Steel Pipe
Processing Service
Cutting
Secondary Or Not
Non-secondary
Shape
Round
Surface
Customers't Requirement
Usage
Oil Gas Sewage Transport
Length
6-10m
Product name
Seamless pipe
Keyword
High temperature resistant
End protector
Plastic Pipe Cap
Company Profile
00:0000:15

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

CSPG  has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 


We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.


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Packing & Delivery
Steel strip packing, covered with tarpaulin on the ends or fully covered, or plastic caps, etc
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FAQ
1. who are we?
We are based in Shandong, China, start from 2014,sell to Southeast Asia(20.00%),Africa(15.00%),Domestic Market(15.00%),Eastern Europe(10.00%),South America(10.00%),North America(5.00%),Central America(5.00%),Western Europe(5.00%),Mid East(5.00%),South Asia(5.00%),Oceania(3.00%),Southern Europe(2.00%). There are total about 101-200 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
steel pipe,steel tube,stainless steel plate,stainless steel pipe,alloy steel plate

4. why should you buy from us not from other suppliers?
Shandong Longshun Pipe Industry Co.,Ltd. is famous company exporting seamless steel pipe,galvanized steel coil, steel sheet,stainless steel clad plate, stainless steel plate, stainless steel pipe, carbon steel plate, alloy steel plate.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese