Plasma Slotted Screen (PSS)
Figure 1: Structural drawing of Plasma Slotted Screen (PSS)
About MDPT’s Product
The process technology of MDPT’s leading product, namely Plasma Slotted Screen (PSS), has reached the up-to-date level both at home and aboard as evaluated by the National Science and Technology Committee. We have been awarded the Science and Technology Award by the Ministry of Education, China Petroleum and Chemistry Industrial Association, and China Mechanical Industrial Association.
The Structural Characteristics of PSS
(1) Specially designed trapezoid slot shape: narrow outside and wide inside
a. self - cleaning
b. The flow resistance is significantly reduced.
c. Good effects of sand control.
(2) The slot surface has anti-corrosion electro-chemical treatment by high frequency hardening at 8000HZ and 10000 degree during machining process.
a. The slot surface has been generated a 0.1 ~ 0.2mm hardening and anti-corrosion layer.
b. High resistance to wearing and corrosion.
c. A longer service life than similar products.
(3) Characteristics of PSS Slot
a. High dimension accuracy of slotted width
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Item
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1
|
2
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Slot length
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Slot width
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0.15~0.5(mm)
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0.6~4.0(mm)
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60~120(mm)
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Tolerance
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±0.03(mm)
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±0.10(mm)
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±1.0(mm)
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b. Slot surface is smoother than other similar products'
c. No cutting holes at the slot end.
(4) Size specification and application scope of PSS
The size specifications of PSS are shown in table 1.
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1
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Outside diameter of the liner (mm)
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φ50～φ219
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2
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Length of the liner (mm)
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1000～12000
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3
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Outside pipe of the slot width (mm)
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0.15～0.60(Tolerance±0.03), 0.60~4.00(Tolerance±0.1)
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|
4
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inside pipe of the slot width (mm)
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Outside pipe of the slot width +0.1
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5
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Slot length (mm)
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60~120, Tolerance ± 1.00
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|
6
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Slot quantities per circle
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Per customer request
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7
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The distance between the adjacent slots (mm)
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Per customer request
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(5) Application scope
It can be applied to sand-control completion of horizontal well, side well drilling, branch well, and gravel pack well completion.
(6) Application history
It has been applied widely in Shengli Oilfield, Zhongyuan Oilfield, Daqing Oilfield, Liaohe Oilfield, Xinjiang and Kazakhstan with its unique superiority and welcomed by all customers
