Down hole triggering sliding sleeve control system and control method

Abstract

The invention discloses a down hole triggering sliding sleeve control system and control method. The down hole triggering sliding sleeve control method comprises the following steps that a control instruction is sent to a down hole triggering sliding sleeve in the mode that an electromagnetic wave is sent on the ground; the sliding sleeve is opened in the mode of gunpowder burning explosion; and a piston rod is pushed in the mode of gunpowder burning explosion to enable the piston rod to upwards move to open the down hole triggering sliding sleeve. According to the down hole triggering sliding sleeve control system and control method, the control instruction is sent to the down hole triggering sliding sleeve in the mode that the electromagnetic wave is sent on the ground, and through the modes that an elastic film is installed at the outer end of a spray hole, and a cavity formed by the spray hole and the piston rod through sealing rings at the two ends is filled with a balancing solution, it is guaranteed that well cement slurries do not enter the cavity of the down hole triggering sliding sleeve through the spray hole in the well cementing process. The down hole triggering sliding sleeve control system and control method are easy to operate, reliable, low in cost and capable of greatly improving fracture acidizing construction efficiency, meanwhile any opening tools do not to downwards enter, and the down hole complex accident is avoided to the biggest extent.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field stimulation and transformation, and in particular relates to a downhole trigger sliding sleeve control system and a control method. Background technique [0002] The problem of insufficient domestic oil and gas supply is becoming more and more prominent. The recoverable and easily recoverable reserves of oil are constantly decreasing. Exploration and development are developing towards deep and unconventional hidden oil reservoirs. Fracturing and acidizing stimulation are required in the well process, and fracturing and acidizing stimulation has become the most effective measure to solve interlayer conflicts, improve the production degree of oil layers, and tap the interlayer potential. With the development of technology, existing oil and gas wells usually adopt staged fracturing and acidizing technology, but currently there is no reliable fracturing and acidizing technology that can take...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a downhole trigger sliding sleeve control system and control method, aiming at solving the serious lagging problem of the construction progress caused by the casing deformation caused by the staged fracturing + perforation and bridge plug continuous operation process used in the current oil and gas well stimulation reconstruction , and save the time and cost of lowering bridge plugs and perforating, and greatly improve the efficiency of oil and gas well stimulation

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