The slotted liner screen pipe
The slotted liner pipes using in oil exploration can prevent 99% sand,decrease80% of oil well heavy repairand increase the oil well's strength , intergrality and stability of keeping off sand. Meanwhile , the laser incision can make very small cuts with smooth surface and high precision. Although its structures is simple,it is very effective .It has small cuts of 0.10--0.5mm in the tube wall.
Center tube has unique spiral pattern
Center tube has high precision perforated tube with standard oil and glove tubes. The spiral perforating form of the center tube reduces the opening area of the tube cross section and maintains the strength of the center tube to the maximum. The sand is blocked outside of the perforated screen while the oil, gas or water goes through the perforated opening then enters into the screen.
Working principle:allowing the certain size and coming through the surface with crude oil but keeping the bigger size sand being stopped outside to form sand bridge and thereby achieve the anti-sand purpose
Aquifer classification | gravel | Grouan | middle sand | thin sand | farine sand |
The screening results | 1-2.5 | 0.5-1 | 0.25-0.5 | 0.1-0.25 | 0.1-0.25 |
Span the gap | 3 | 1.5-2 | 1 | 1 | 0.75 |
Packing specification | 4-20 | 2-8 | 2-3 | 2-3 | 2-3 |
Gravel thickness | 7-100 | 100 | 100-200 | 100-200 | 100-200 |
The production of bridge slot screens which are the national geological sampling the popularization of bridge eyes with introduction of the filter water equipments, this type of products design is reasonable, appearance, reliable quality, suitable for hydrology, geology, engineering geology, chemical engineering geology, geothermal air conditioning, foundation precipitation, water source development, farmland and the urban water supply various industries such as construction construction
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