Slick water suitable for field continuous mixing, and preparation method therefor

Abstract

The present invention relates to the technical field of slick water, and is slick water suitable for field continuous mixing, and a preparation method therefor. The slick water suitable for field continuous mixing has the following raw materials in parts by weight: 0.6-1 parts of a resistance reducing agent, 6-10 parts of a multifunctional synergist, and 990-994 parts of water. The slick water suitable for field continuous mixing provided by the present invention are dramatically increased in the swelling ratio and the resistance reducing ratio when compared with the existing slick water. The slick water suitable for field continuous mixing provided by the present invention is good in resistance reducing effect, thorough in gel breaking, and superior to a common fracturing fluid in all indicators of the flowback liquid after gel breaking, meets the production requirements of field continuous mixing, reduces the construction pressure and ensures safe construction.

Description

technical field [0001] The invention relates to the technical field of slick water, and relates to slick water suitable for on-site continuous mixing and a preparation method thereof. Background technique [0002] With the sharp increase of energy demand all over the world, unconventional oil and gas resources are getting more and more attention. Tight oil is a relatively important part of unconventional oil and gas resources, and it is also an important replacement resource for future oil and gas resources. Therefore, the research and development of tight oil has received extensive attention in recent years. [0003] The target layer of the tight oil reservoir in Changji Oilfield, Jungar Basin is a tight, low-permeability argillaceous siltstone reservoir with moderate rock brittleness. The fracture-controlled unit development model was explored with the concept of volume fracturing to realize multi-block cutting of the reservoir. The seepage distance from the matrix ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a slippery water suitable for on-site continuous mixing and its preparation method, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the existing The slick water has the problems of low swelling rate, cannot be prepared and used immediately, and the drag reduction effect is poor, which can no longer meet the needs of existing production.