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Natural vegetable gum drilling fluids with high-temperature resistance are developed for environmental protection. The vegetable gum is chosen as raw material. All agents such as major treatment agent TLJ-1 and auxiliary treatment agents LV-CMC, PEG, and QS-2 are friendly to environment. By changing the physical and chemical environment of the fluid, temperature resistance capability of the fluid is studied. Laboratory tests show the performance of the fluid.
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