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|Magnesium Dissolving Alloy
|Oil And Gas Explore
|Dissolving Rate Is Customized
High Strength Dissolving Soluble Magnesium Alloy Frac Ball Bridge Plugs For Downhole Tools
At present, bridge plugs, packers, and other sealing tools are commonly used for segmented fracturing construction in low permeability oil and gas wells both domestically and internationally. Due to the characteristics of fewer construction processes, accurate sealing positions, and multiple stages of segmentation, bridge plugs are widely used in practical construction. The removable bridge plug and packer both require complex on-site operations, and even have difficulties in lifting, resulting in damage to the inner wall of the casing during use, requiring casing repair and other issues; The commonly used types of bridge plugs currently include cast iron bridge plugs, composite bridge plugs, large diameter bridge plugs, and removable bridge plugs. Except for removable bridge plugs, other types of bridge plugs in these sealing tools require extensive drilling after fracturing construction; Although the large diameter bridge plug does not need to be drilled temporarily after fracturing construction, it will form throttling on the production channel, which is not conducive to drainage, so drilling operations will still need to be carried out in the later stage. Moreover, as the length of unconventional horizontal sections in oil and gas wells continues to increase, the cost and difficulty of drilling and grinding also increase. Most existing bridge plugs are connected to the setting tool through specific connectors. The setting force released by the setting tool is applied to the connector through the piston rod, causing the bridge plug rubber cylinder to be compressed and expanded under the setting force until it tightly adheres to the inner wall of the casing. At the same time, the slip segments gradually open, and the tilted slip teeth are slowly embedded into the inner wall of the casing to keep the rubber cylinder in a compressed plastic state, ultimately completing the underground sealing work of the bridge plug. The commonly used quick drilling composite bridge plugs, cast iron bridge plugs, and large diameter bridge plugs all have drilling and grinding processes, which seriously affect the construction period and increase the construction cost and difficulty.