Casing subsidy mechanism and subsidy method for low-pressure casing damaged wells

Fig. 1 is the constitution schematic diagram of the present invention;

The high-pressure hose 3 and the soluble ball seat 4; the inflating tool 2 is connected to the lower end of the oil pipe 1, and the inflating tool 2 is connected to the subsidized high-pressure hose

During actual use, after the subsidy high-pressure hose 3, the inflating tool 2 and the oil pipe 1 are connected and put into the wellbore, when the supplementary high-pressure hose 3 is connected,

The subsidy high pressure hose 3 is bonded to the inner wall of the casing. The invention is simple in construction and achieves the purpose of quick repair. The original used in the present invention

[0028] Fig. 2 is a schematic diagram of the structure of the inflating tool of the present invention.

The inner diameter of the ball seat 4 is greater than or equal to 90mm; the fixing member adopts a ring-shaped buckle.

During concrete application, soluble ball seat 4 adopts this technical scheme, can guarantee to subsidize high pressure hose 3 lower end to carry out

[0039] The fixing member adopts a ring-shaped buckle, which can effectively implement its function, and has low cost and convenient material acquisition.

3 are connected by snaps; the soluble ball seat 4 is arranged above the damaged casing; the inner side wall of the subsidized high-pressure hose 3

With reference to a kind of low-pressure casing damage well casing subsidy mechanism shown in Fig. 1 and Fig. 2, comprise oil pipe 1, intumescent tool 2, subsidy

During actual use, 2 inches of 7 oil pipes are oil pipes commonly used in oil fields, and it is convenient to obtain materials, and it is not necessary to prepare other oil pipes during operation,