An isolated gas lift packer
A packer and isolation technology, applied in the direction of sealing/isolation, production fluid, wellbore/well components, etc., can solve the problems of long time period, high cost and high cost, and achieve the goal of short time period and low cost Effect
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Embodiment 1
[0034] refer to Figure 1 to Figure 4 , an isolated gas lift packer, including an isolation tube 001, a one-way valve 12, a setting assembly and two rubber cartridge assemblies.
[0035] The structure of the isolation tube 001 is not limited, as long as it can meet the functional requirements of the present invention, it is within the scope of the present invention. For the convenience of fabrication and installation, the present invention is an improved preferred solution as follows: see figure 1 and Figure 4, the isolation tube 001 is spliced by the upper joint 2, the upper core tube 9, the first long core tube 15, the second long core tube 16 and the lower core tube 23 which are sequentially connected from top to bottom.
[0036] refer to figure 1 and Figure 4 , two rubber cartridge assemblies, sleeved on the outer wall of the isolation tube 001.
[0037] The structure of the rubber cartridge assembly can adopt the existing structure of the rubber cartridge assembly...
Embodiment 2
[0051] refer to Figure 4 to Figure 6 , on the basis of Embodiment 1, the isolated gas lift packer also includes an unsealing assembly, the unsealing assembly includes elastic claws 26 and claw support rings 27; an upper push block 171 is provided on the inner wall of the lower pressure cylinder 17, A push-down block 231 is provided on the outer wall of the isolation tube 001 , and the push-down block 231 is located below the push-up block 171 .
[0052] The elastic claw 26 includes a mounting tube 261 and several elastic hooks vertically arranged at the lower end of the mounting tube 261, and a slideway matched with the claw supporting ring 27 is formed between the elastic grabs; the mounting tube 261 is connected to the The lower end of the isolation tube 001; the claw support ring 27 is set in the slideway.
[0053] The elastic hook can adopt the existing structure, as long as it can hook the lower cone 22, the claw support ring 27 can fix it on the lower cone 22, all with...
Embodiment 3
[0058] On the basis of any of the above embodiments, refer to Figure 1 to Figure 6, the isolation tube 001 is spliced by the upper joint 2, the upper core tube 9, the first long core tube 15, the second long core tube 16 and the lower core tube 23 which are sequentially connected from top to bottom. As a specific preferred solution: the lower end of the upper joint 2 is screwed onto the upper end of the upper core tube 9; the upper core tube 9 and the first long core tube 15 are connected by a threaded sleeve 003; the first long core tube 15 The lower end is screwed into the upper end of the second long core tube 16; the lower end of the second long core tube 16 is screwed into the upper end of the lower core tube 23; the lower end of the lower core tube 23 is screwed into the mounting tube 261.
[0059] Wherein, as a preferred solution, the small outer teeth of the isolation tube 001 are arranged on the upper joint 2 .
[0060] Among them, as a preferred solution, the fir...
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