Blockage relieving agent capable of releasing heat and increasing energy, blockage relieving method, and injection device
A technology of agent and injection volume, applied in isolation devices, chemical instruments and methods, earthwork drilling and mining, etc., can solve problems such as formation blockages that cannot be dealt with
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[0033] This embodiment provides an exothermic energy-enhancing blockage-removing agent, including 1135kg of iron powder, 5900kg of solid nitric acid and 90m of dehydrated crude oil. 3 (86400kg), iron ion stabilizer 570kg.
[0034] This embodiment also provides an exothermic and energy-increasing plugging removal method, which is carried out by using the above-mentioned exothermic and energy-increasing plugging-removing agent, and the structure of the injection device used is as follows: figure 1 As shown, the injection device includes a casing 1, a tubing 2, a casing packer 3, a fishable bridge plug 4, and a bell mouth 5. The casing 1 goes deep into the oilfield formation, and the tubing 2 is arranged in the casing 1. The bell mouth 5 is arranged at the lower end of the tubing 2. When in use, the bell mouth 5 is set in the formation (target formation) that needs to be energized and blocked. A packer 3 is arranged above the bell mouth 5 and between the tubing 2 and the casing 1...
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