Aluminum alloy slotted screen pipe

• Main Authors: WANG ZHIZUN, LU DEQUAN
• Format: Patent
• Language: English
• Published: 01.07.2015
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to an aluminum alloy slotted screen pipe. According to the technical scheme, the aluminum alloy slotted screen pipe comprises a lower joint, a main screen pipe body, compound slots and an upper joint, wherein the main screen pipe body is made of aluminum alloy, the lower joint is arranged at one end of the main screen pipe body, and the upper joint is arranged at the other end of the main screen pipe body; multiple groups of compound slots are distributed in the main screen pipe body, and each compound slot is composed of a rectangular slot and a trapezoidal slot; the outer slots of the pipe wall of the main screen pipe body are the rectangular slots, the inner slots are the trapezoidal slots, and each trapezoidal slot adopts an outer-narrow inner-wide structure. The aluminum alloy slotted screen pipe has the beneficial effects that on the one hand, the main screen pipe body is made of the high-strength aluminum alloy material; during sidetrack drilling, a common drilling and milling tool is used for easy drilling, and the requirement of impact and compression strength of the underground screen pipe is met; on the other hand, the adopted slot section is in a compound shape, the thick inner slot of the outer layer of the pipe is rectangular, and the lower end is connected with one outer-narrow inner-wide trapezoidal slot; when grit enters the slot, the grit is easily carried by crude oil to pass through, and the abrasion resistance of the slot can be improved due to the outer rectangle.