Y211-118 is combination tools with compression type packer, hydraulic injector and tubing telescopic compensator. Y211-118 packer as single bottom sealing effective seal which has construction layer, water spray gun for hydraulic sand blasting perforation, annulus large displacement injection volume of fracturing string technology process.

Using conventional tubing transmission, lifting pipe column, hydraulic sand jet perforation, oil jacket and hydraulic fracturing, drag the pipe column change layer, subsection volume fracturing construction from bottom to top.

String structure (from the bottom) :

guide head +Y211-118 packer +telescopic compensator + single valve + hydraulic spray gun (1 or 2) + adjust tubing (1 or 2) + hydraulic type safety joint + tubing to fracturing wellhead

Technical Features：

Packer can satisfy the high temperature of 120 ℃, under the condition of high pressure 70 MPa reliable setting requirements for many times.The average capacity of works can reach 8 paragraphs.