Research Of A Novel Vegetable Gum Drlling Fluid Innovation And Application Of Modifiers

In a loose core and complex formations, drilling with the general vegetable-gum drilling fluids usually occurs collapsed drilling and coring incomplete. To suffice the needs of engineering requirements and environmental protection, people usually use some good vegetable-gum drilling fluids vegetable-gum is a large class of plants which after processing Can be used as the drilling fluid, most of them are natural high molecular polymer, vegetable-gum composition system generally contains vegetable gum, polymers and corresponding treatment chemicals, Vegetable-gum drilling fluid has better cuttings suspension and the ability to carry cuttings compared with the general mud, thin and toughness polymer film can be formed on wall, it can protect the rock core better and lubrication drag reduction, besides low density, viscosity adjustable, good fluidity; because of the polymer flocculation automatically cleared solid particles, no accumulation of drill cuttings In the drilling process, can greatly improve the efficiency of drilling drill debris. Vegetable gum drilling fluids could be degraded, it useful for environmental protection and avoid contamination after drilling.Currently on the market commonly used vegetable gum SM are better, but with the increase in drilling projects, increasing demand, resulting in higher prices of vegetable gum, raw materials have gradually depleted due to over-exploitation, affected the promotion and application of plant gum. The purpose of this paper is to seek a more affordable vegetable gum and improve it to meet the needs of the plant gum and performance requirements. Thus it has important economic and practical implications for sustainable development drilling projects, research methods combining theory and practice, the main process is as follows:1. Find a new vegetable-gum materials, mixed with inert material tackifier and plugging agent, through a laboratory test comparing the excellent performance of the plant gum market data to determine plant collagen powder formula, developed a new variety of vegetable-gum (Code TWS).2. Join the modified plant gum treatment agent to improve the performance ratio and analyze the mechanism of modification agents in vegetable-gum, the main modification agent is PS (borax), Na-CMC (sodium carboxymethyl cellulose), PHP (hydrolyzed polyacrylamides), NaOH (sodium hydroxide), summarizes modification method of the treatment agent modifiers and the effect of the vegetable gum by the action of the data, analysis mechanism of modification method, finalize the formulation of the modified vegetable gum.3. Field trials vegetable gum, by vegetable gum user feedback information to adjust the ratio of vegetable gum, make qualified vegetable gum products. By field testing newly developed TWS vegetable gum fluid, performance to meet the needs of drilling, rock core is complete, and has excellent Prevent Drill hole wall collapse performance, excellent sealing and carry cuttings performance, the price is right, and many other advantages.