Oil resistance based screw drill for shale gas
A technology of screw drilling tools and shale gas, which is applied in earthwork drilling, drilling equipment, and driving devices for drilling in boreholes. Improve the physical and mechanical properties, prolong the service life, and prolong the life of screw drilling tools
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Embodiment 1
[0020] An oil-resistant screw drilling tool for shale gas, the screw drilling tool includes a rotor, a rubber bushing and a stator casing, and the rubber bushing is made of the following raw materials in parts by mass: 90 parts of hydrogenated nitrile, carbon 115 parts of black, 18 parts of white carbon black, 24 parts of zinc oxide, 3 parts of stearic acid, 19 parts of anti-aging agent, 13 parts of coumarone, 5 parts of dispersant, 8 parts of dioctyl phthalate, plasticizer 23 parts, 0.5 parts of sulfur, 9 parts of crosslinking agent, 6 parts of accelerator, 6 parts of tear-resistant resin and 1 part of anti-hydrolysis agent.
[0021] The anti-aging agent is a mixture of N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine and 2,2,4-trimethyl 1,2-dihydroquinoline polymer, The weight ratio of the N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine and 2,2,4-trimethyl 1,2-dihydroquinoline polymer is 3: 5.
[0022] The accelerator is a mixture of accelerator NOBS and accelerator T...
Embodiment 2
[0030] An oil-resistant screw drilling tool for shale gas, the screw drilling tool includes a rotor, a rubber bushing and a stator sleeve, and the rubber bushing is made of the following raw materials in parts by mass: 110 parts of hydrogenated nitrile, carbon 95 parts of black, 26 parts of white carbon black, 15 parts of zinc oxide, 7 parts of stearic acid, 13 parts of anti-aging agent, 17 parts of coumarone, 1 part of dispersant, 13 parts of dioctyl phthalate, plasticizer 17 parts, 1.8 parts of sulfur, 5 parts of crosslinking agent, 12 parts of accelerator, 2 parts of anti-tear resin and 4 parts of anti-hydrolysis agent.
[0031]The anti-aging agent is a mixture of N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine and 2,2,4-trimethyl 1,2-dihydroquinoline polymer, The weight ratio of the N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine and 2,2,4-trimethyl 1,2-dihydroquinoline polymer is 3: 5.
[0032] The accelerator is a mixture of accelerator NOBS and accelerator TMTD,...
Embodiment 3
[0040] An oil-resistant screw drilling tool for shale gas, the screw drilling tool includes a rotor, a rubber bushing and a stator casing, and the rubber bushing is made of the following raw materials in parts by mass: 100 parts of hydrogenated nitrile, carbon 110 parts of black, 25 parts of white carbon black, 20 parts of zinc oxide, 6 parts of stearic acid, 18 parts of antioxidant, 13 parts of coumarone, 5 parts of dispersant, 8 parts of dioctyl phthalate, plasticizer 19 parts, 1.6 parts of sulfur, 5 parts of crosslinking agent, 6 parts of accelerator, 2 parts of anti-tear resin and 4 parts of anti-hydrolysis agent.
[0041] The anti-aging agent is a mixture of N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine and 2,2,4-trimethyl 1,2-dihydroquinoline polymer, The weight ratio of the N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine and 2,2,4-trimethyl 1,2-dihydroquinoline polymer is 3: 5.
[0042] The accelerator is a mixture of accelerator NOBS and accelerator TMTD, and...
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