Continuous compounding method for fracturing fluid

Abstract

The invention discloses a fracturing fluid continuous mixing method, comprising the steps as follows: guar gum is input into an injection-typed mixer which can automatically adjust the flux by a precise spiral feeding machine; the feeding quantity of the guar gum is adjusted by the rotation speed of the precise spiral feeding machine; the blanking quantity of the spiral feeding machine is controlled by a computer which can continuously read the difference value of an electronic balance within unit time, adjusts the rotation speed of the spiral feeding machine according to the flux and proportion of the external clean water and keeps the given liquid mixing ratio; the method is applicable to continuous mixing in-situ, the mixed fracturing fluid has good quality, the hydration speed of the liquid is fast, the labor intensity of workers is reduced, the cost payout is saved and the environmental pollution is reduced.

Description

technical field

[0001] The invention relates to the technical field of fluid mixing technology for fracturing construction in oil and gas fields, in particular to a continuous mixing method for fracturing fluid. Background technique

[0002] In the process of oil extraction, in order to increase oil production, oil fracturing technology is widely used at home and abroad to improve the extraction rate of oil in the oil layer and prolong the production life of the oil field. In petroleum fracturing technology, the quality of fracturing fluid preparation plays a vital role in the success of fracturing operations. Petroleum fracturing fluid is a uniform liquid with a certain viscosity made of vegetable rubber powder and water in a certain proportion, plus several additives such as demulsifiers, drainage aids, viscosity reducers, etc. At present, the oil industry at home and abroad has higher and higher requirements on the quality of petroleum fracturing fluid. The requirements ...

Images