This system is built by plant gel thickener (HPG, guar, bean gel) and crosslinker (organic boron, organic boron zirconium) under alkaline condition. The high proppant carrying capacity and low damage can satisfy the requirements of conventional fracturing treatment.
Property Indices |
Items |
|
|
Product Indices |
|
|
20℃-60℃ |
60℃-120℃ |
120℃-180℃ |
||
|
Apparent viscosity of base fluid, mPa.s |
10~40 |
|
20~80 |
30~100 |
|
Crosslinking time, s |
15~60 |
|
30~120 |
60~300 |
|
Gel apparent viscosity, mPa.s |
|
|
≥50 |
|
|
Matrix permeability damage ratio, % |
|
|
≤30 |
|
|
Viscosity of broken gel, mPa.s |
|
|
≤5.0 |
|
|
Surface tension, mN/m |
|
|
≤28.0 |
|
|
Interface tension, mN/m |
|
|
≤2.0 |
|
|
Residual content, mg/L |
|
|
≤600 |
|
|
Emulsion breaking ratio, % |
|
|
≥95 |
|
|
Friction reduction ratio, % |
|
|
≥50 |
|
|
Compatibility |
|
No precipitate; no flocculation |
||
3. Application for Treatment
Make the fracturing based fluid according to the fracturing fluid design, and add PH controller after sufficient swelling, and then add crosslinker into the base fluid according to design to form the crosslinked fracturing gel, and then mix the fluid system with proppant in the blending unit according to pumping schedule for treatment execution.
2016-2017 Orient Baolin Technology Development (Beijing) Co., Ltd. All Rights Reserved
