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A technology of lubricants and surfactants, applied in the field of drilling fluid lubricants and their preparation, can solve the problems of retention in water and soil, pollute the environment, pollute the ecological environment, etc., and achieve excellent anti-wear performance and biodegradability Effect
Active Publication Date: 2016-06-22
BEIJING XINXIANGYUAN CHANGSHUN LUBRICATING OIL CO LTD
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Problems solved by technology
Mineral oil-based lubricants are mainly C20-C70 hydrocarbon compounds, which have poor biodegradability and will remain in water and soil for a long time during use, causing environmental pollution
When the water contains a low concentration of mineral oil, it will cause the death of marine biota; when the mineral
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Embodiment 1
[0014] Example 1: In a reactor that can be heated and stirred, first add 25.0 kg of biodiesel, 25.0 kg of polyether and 25.0 kg of ester base oil, stir and heat to 50-60 ° C, add Span-80 sorbitan oil 10.0 kg of acid ester, 12.0 kg of EL-40 polyoxyethylene castor oil, 2.5 kg of extreme pressure antiwear agent, stirred for 1 hour, finally added 0.5 kg of defoamer, and continued to stir for 1 hour to obtain light yellow viscous liquid, namely The drilling fluid lubricant provided by the present invention.
Embodiment 2
[0015] Example 2: In a heated and stirred reactor, first add 20.0 kg of biodiesel, 30.0 kg of polyether and 30.0 kg of ester base oil, stir and heat to 50-60 °C, add Span-80 sorbitan oil 8.0 kg of acid ester, 10 kg of EL-40 polyoxyethylene castor oil, 1.5 kg of extreme pressure antiwear agent, stirred for 1 hour, finally added 0.5 kg of defoamer, and continued to stir for 1 hour to obtain light yellow viscous liquid, namely The drilling fluid lubricant provided by the present invention.
[0017] Example 3: In a heated and stirred reactor, first add 25.0 kg of biodiesel, 30.0 kg of polyether and 30.0 kg of ester base oil, stir and heat to 50-60°C, add Span-80 sorbitan oil 8.0 kg of acid ester, 5.0 kg of EL-40 polyoxyethylene castor oil, 1.5 kg of extreme pressure antiwear agent, stirred for 1 hour, finally added 0.5 kg of defoamer, and continued to stir for 1 hour to obtain light yellow viscous liquid, namely The drilling fluid lubricant provided by the present invention.
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Abstract
The invention belongs to the field of oilfield chemistry, and relates to a drilling fluid lubricant prepared by taking biodiesel, a polyether compound and esters oil as base oil, adding a proper antiwear additive and surfactants and blending, and a preparation method thereof. The lubricant provided by the invention comprises the components by the weight percentage: 20%-30% of the biodiesel, 20%-30% of polyether, 20%-30% of esters base oil, 5-20% of Span-80 sorbitan oleate, 5-20% of EL-40 polyoxyethylene castor oil, 2-10% of an extreme pressure antiwear agent, and 0.5-1% of a defoaming agent. The drilling fluid lubricant provided by the invention is formed by taking the biodiesel, the polyether, esters and other good-biodegradability compounds as the base oil, adding the anionic surfactant, the non-ionic surfactant, the extreme pressure antiwear agent and the defoaming agent and blending; the drilling fluid lubricant has excellent wear resistance and biodegradability, has no significant effect on other drilling fluid properties, such as the viscosity, the water loss rate and the like, and is an environmental-friendly drilling fluid lubricant.
Description
technical field [0001] The invention relates to a drilling fluid lubricant prepared by blending biodiesel, polyether compound and ester oil as base oil, adding suitable anti-wear additives and surfactants and a preparation method thereof. The drilling fluid provided by the invention has excellent biodegradability and is an environment-friendly drilling fluid lubricant. Background technique [0002] Drilling fluid lubricant can improve the lubricity of drilling fluid and reduce the viscosity coefficient of mud cake. At present, most drilling fluid lubricants in my country are mineral oil lubricants. Mineral oil-based lubricants are mainly C20-C70 hydrocarbon compounds, which have poor biodegradability and will remain in water and soil for a long time during use, causing environmental pollution. When the water contains a low concentration of mineral oil, it will cause the death of marine biota; when the mineral oil penetrates into the soil, the microorganisms in the soil wil...
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Application Information
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IPC IPC(8): C09K8/03
CPCC09K8/03C09K2208/34
Inventor 刘长斌
Owner BEIJING XINXIANGYUAN CHANGSHUN LUBRICATING OIL CO LTD
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