Method for preparing water-based drilling fluid lubricant in microchannel reactor

Abstract

The invention relates to a method for preparing a water-based drilling fluid lubricant with a micro-channel reactor, and especially relates to a method for preparing the water-based drilling fluid lubricant from a fatty acid and an organic amine as raw materials through a reaction in the micro-channel reactor. The method particularly comprises following steps: (1) feeding the two raw material liquids, the fatty acid and the organic amine, respectively to two inlets of the micro-channel reactor through metering pumps and enabling the raw material liquids to enter a micro-channel reaction module, wherein molar proportion of the fatty acid to the organic amine is controlled to be 1-4:1 by adjusting and controlling volume flow rate proportion of the fatty acid to the organic amine; and (2) carrying out a reaction under normal pressure at 50-180 DEG C with the retention time of the reaction materials in the micro-channel reactor being controlled to be 2-30 min to prepare the water-based drilling fluid lubricant. The method for producing the water-based drilling fluid lubricant enables temperature during a reaction process to be controlled effectively, is high in safety, is good in module mixing effect, is high in product quality, is less in required reaction retention time and is high in production efficiency. The method can achieve continuous and flexible production of the product.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and relates to a preparation method of a drilling aid, in particular to a method for preparing a water-based drilling fluid lubricant by using a microchannel reactor. Background technique [0002] With the increasing number of horizontal wells, directional wells and highly deviated wells, in the oil drilling process, it is often necessary to use a large amount of drilling fluid lubricants to reduce the friction between the well wall and the drilling tool, and between the drilling tool and the casing , reduce downhole complex situations, and increase drilling speed. At present, the production of drilling fluid lubricants is generally carried out in batch or continuous stirred tank reactors. This technology has the following disadvantages: (1) Batch reaction requires auxiliary time, the equipment utilization rate is not high, and it is not easy to realize automatic control; (2) The stirring...

AI Technical Summary

Problems solved by technology

This technology has the following disadvantages: (1) Batch reaction requires auxiliary time, the equipment utilization rate is not high, and it is not easy to realize automatic control; (2) The stirring equipment consumes a lot of energy, and the operation cost is high in industrial production, and the mass transfer of the stirring reaction is not good. Ideal, the conversion rate and yield are not high; (3) The reaction product cannot be discharged in time, which is not conducive to the forward progress of the reaction