Preparation method of suspension liquid desulfurization agent for water-based oil testing well completion fluid system
A well fluid system and suspension technology, applied in chemical instruments and methods, earthwork drilling, wellbore/well components, etc., can solve the problems of uneven dispersion, high surface energy, large specific surface area, etc., and achieve good stability , good rheology and high sulfur removal efficiency
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Embodiment 1
[0027] As the best embodiment of the present invention, its components and proportioning are as follows:
[0028] (1) Formula composition: 60g of isopropyl titanate triisostearate, 10g of alkylphenol polyoxyethylene ether, 20g of sodium polyacrylate, 200g of nano-zinc oxide, 100g of isopropanol, and 610g of pure water.
[0029] (2) Preparation method: Add the surface modifier into isopropanol in container A, heat to 60-80°C, and stir to form a uniform solution. Add the dispersant, emulsifier, and nanopowder into the aqueous solution with a pH value of 9-10 in the B container, heat to 60-80°C, and stir to form a uniform solution. Under rapid stirring, add the uniform solution formed in container A into container B, stir for 2 hours to form a uniformly dispersed slurry, and cool to room temperature.
[0030] (3) The sulfur removal efficiency of sulfur removal agent 1# and the effect of high temperature on the rheology of the completion fluid system are shown in the table below,...
Embodiment 2
[0033] As the best embodiment of the present invention, its components and proportioning are as follows:
[0034] (1) Formula composition: 60g of isopropyl tris(dioctyl phosphate acyloxy) titanate, 10g of natural phenol polyoxyethylene ether, 20g of polycarboxylate sodium salt, 200g of nano zinc oxide powder, 100g of isopropanol , 610g of pure water.
[0035] (2) Preparation method: Add the surface modifier into isopropanol in container A, heat to 60-80°C, and stir to form a uniform solution. Add the dispersant, emulsifier, and nanopowder into the aqueous solution with a pH value of 9-10 in the B container, heat to 60-80°C, and stir to form a uniform solution. Under rapid stirring, add the uniform solution formed in container A into container B, stir for 2 hours to form a uniformly dispersed slurry, and cool to room temperature.
[0036] (3) The sulfur removal efficiency of sulfur removal agent 2# and the effect of high temperature on the rheology of the completion fluid sys...
Embodiment 3
[0039] As the best embodiment of the present invention, its components and proportioning are as follows:
[0040] (1) Formula composition: γ-methacryloxypropyltrimethoxysilane 60g, alkylphenol polyoxyethylene ether 5g, OP-10 5g, polyvinylpyrrolidone 30g, nano-zinc oxide powder 300g, isopropyl Alcohol 100g, pure water 500g.
[0041] (2) Preparation method: Add the surface modifier into isopropanol in container A, heat to 60-80°C, and stir to form a uniform solution. Add the dispersant, emulsifier, and nanopowder into the aqueous solution with a pH value of 9-10 in the B container, heat to 60-80°C, and stir to form a uniform solution. Under rapid stirring, add the uniform solution formed in container A into container B, stir for 2 hours to form a uniformly dispersed slurry, and cool to room temperature.
[0042] (3) The sulfur removal efficiency of sulfur removal agent 3# and the effect of high temperature on the rheology of the completion fluid system are shown in the table b...
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