Oil base drilling cutting cleaning fluid and cleaning method for oil base drilling cuttings
A technology for oil-based drilling cuttings and cleaning fluid, applied in the field of oil-based drilling cuttings cleaning fluid and oil-based drilling cuttings cleaning, can solve problems such as complex process and equipment corrosion, achieve simple operation, low cost, and reduce oil-water interfacial tension Effect
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[0039] Example 1
[0040] Place 1000g of oil-based drill cuttings in a certain oil field in a container with stirring facilities, add 16g of Demulsifier 1231 produced by Shanghai Chengguan Biotechnology Co., Ltd. under constant stirring at 200rpm, and stir for 3min; then add 6g of N-oil Acyl-N-methyl taurate sodium and 1000 g of water were continuously stirred for 5 minutes to obtain a mixture; the mixture was centrifuged at 2500 rpm for 5 minutes to obtain an upper oil phase, a middle water phase and a lower solid phase. The separated intermediate water phase can be used for the next round of oil-based drilling cuttings cleaning.
Example Embodiment
[0041] Example 2
[0042] Put 1000g of oil-based drill cuttings in a certain oil field in a container with a stirring facility, add 20g of Demulsifier 1631 produced by Shanghai Chengguan Biological Technology Co., Ltd. under constant stirring at 300rpm, and stir for 2min; then add 8g 12 The sodium alkylbenzene sulfonate and 1500 g of water were continuously stirred for 10 minutes to obtain a mixture; the mixture was centrifuged at 3000 rpm for 5 minutes to obtain an upper oil phase, a middle water phase and a lower solid phase. The separated intermediate water phase can be used for the next round of oil-based drilling cuttings cleaning.
Example Embodiment
[0043] Example 3
[0044] Put 1000g of oil-based drill cuttings in a certain oil field in a container with a stirring device, add 18g of Demulsifier 1831 produced by Shanghai Chengguan Biotechnology Co., Ltd. under constant stirring at 250rpm, and stir for 4min; then add 7g of sorbitol The oleic acid ester and 1200 g of water were continuously stirred for 4 minutes to obtain a mixture; the mixture was centrifuged at 3000 rpm for 8 minutes to obtain an upper oil phase, a middle water phase and a lower solid phase. The separated intermediate water phase can be used for the next round of oil-based drilling cuttings cleaning.
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