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A continuous mixing method for fracturing fluid

A fracturing fluid and mixing technology, which is applied in the direction of mixing methods, chemical instruments and methods, mixers, etc., can solve the problems of small liquid volume and limit the use range of thickeners, etc., so as to achieve rapid viscosity increase and reduce fracturing Operating cost, the effect of uniform mixing

Active Publication Date: 2016-06-29
李磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this mixing method limits the range of use of the thickener, and the amount of liquid is small, so it cannot be directly used in continuous fracturing operations.

Method used

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  • A continuous mixing method for fracturing fluid
  • A continuous mixing method for fracturing fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The mixing method is as follows:

[0035] Step 1, automatically quantitatively feed guar gum into the first mixing system through the thickener automatic feeding calculation system, and at the same time supply clear water to the first mixing system through the water supply system, and through the PLC (programmable logic controller ) The control system controls the feeding speed of the thickener automatic feeding calculation system and the water supply system to ensure that the mass ratio of guar gum powder to water per second is 5:100, and finally the first premixed solution is obtained.

[0036] Perform step 2 while performing step 1. Step 2 is specifically: automatically quantitatively feed sodium chloride into the second mixing system through the solid additive automatic feeding calculation system, and at the same time supply clean water to the second mixing system through the water supply system In the system, the PLC control system controls the feeding speed of the...

Embodiment 2

[0041] The mixing method is as follows:

[0042] Step 1: Automatically quantitatively feed polyacrylamide into the first mixing system through the thickener automatic feeding calculation system, and at the same time supply clean water to the first mixing system through the water supply system, and control the thickener through the PLC control system The automatic feeding calculation system and the feeding speed of the water supply system ensure that the mass ratio of polyacrylamide to water is 10:100 per second, and finally the first premixed solution is obtained.

[0043] Step 2 is carried out while step 1 is carried out. Step 2 is specifically: automatically quantitatively feed citric acid into the second mixing system through the solid additive automatic feeding calculation system, and at the same time supply clean water to the second mixing system through the water supply system In the process, the feeding speed of the solid additive automatic feeding calculation system an...

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Abstract

The invention discloses a fracturing fluid continuous blending method. The method comprises the following steps: in a mixing step,simultaneously mixing a first premixed solution, a second premixed solution and various liquid chemical additives to obtain a fracturing fluid; in a fluid distributing step: supplying and draining the fracturing fluid obtained in the mixing step. In the method, dry powder and various additives are simultaneously added, the fracturing fluid has no phenomenon of coating powder with water, has a high improvement speed of solution viscosity and is uniform to blend.

Description

technical field [0001] The invention belongs to the technical field of fluid mixing technology for fracturing construction in oil and gas fields, and in particular relates to a continuous mixing method for fracturing fluid. Background technique [0002] Hydraulic fracturing technology is one of the most important stimulation measures to improve the productivity and recovery of oil and gas wells. In hydraulic fracturing technology, the mixing performance of fracturing fluid is directly related to the success or failure of fracturing operations and affects post-fracture stimulation. important factor in the effect. The main components of fracturing fluid include thickener, water, other solid additives, clay stabilizers, drainage aids and other liquid chemical additives. The above components are formulated into a liquid with a certain viscosity. Among them, various materials are mixed evenly The degree and final viscosity are the evaluation methods for the quality of fracturing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/08B01F5/06
Inventor 李磊
Owner 李磊