Konjac gum/sodium alginate solid-free compound drilling fluid and preparation method thereof

• Main Author: LOU RIXIN
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The invention discloses a konjac gum/sodium alginate solid-free compound drilling fluid which includes the following components: 2.0 to 6.0 grams of konjac gum, 2.0 to 8.0 grams of sodium alginate, 1.0 to 3.0 grams of polyacrylamide and 950-1000 ml of deionized water. The invention also discloses a preparation method, wherein the preparation method includes the following steps: S1, physical mixing; S2, stirring and dissolving; S3, polyacrylamide tackifying; S4, high-speed stirring; and S5, low-speed stirring until dissolving. The konjac gum/sodium alginate solid-free compound drilling fluid has the beneficial effects that the problems of high cost of raw materials of a conventional drilling fluid, tedious use process in field, poor comprehensive use performance and the like are solved, andprovided is the compound drilling fluid having the advantages of easily obtained raw materials, low cost, convenient use, stable performance and good compounding performance. 本发明公开了魔芋胶/海藻酸钠无固相复合钻井液，它包括以下组分：魔芋胶2.0~6.0克；海藻酸钠2.