Self-gel-breaking fiber fracturing fluid as well as preparation method and application thereof

• Main Authors: WEN HAITAO, SHI HUAIZHONG, CONG RICHAO, YANG RUIYUE, ZHOU YISU, WANG SHUANGWEI, HOU LEI
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2021
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The invention provides a self-gel-breaking fiber fracturing fluid as well as a preparation method and application thereof. The self-gel-breaking fiber fracturing fluid is prepared from the following components in parts by weight: 100 parts of water, 0.05 to 0.20 part of a surface active thickening agent, 0.5 to 2.0 parts of anti-swelling agent, 0.01 to 0.03 part of a capsule type gel breaker and 0.3 to 1.5 parts of a degradable fiber. The self-gel-breaking fiber fracturing fluid provided by the invention is suitable for diverting fracturing transformation of a natural fracture development reservoir, has good shielding and temporary plugging capability, can divert the fracturing fluid to more ground waves and low-permeability production layers, and improves transformation effect; and meanwhile, the preparation method of the self-gel-breaking fiber fracturing fluid is simple, a fracturing process can be simpler due to the self-gel-breaking characteristic of the self-gel-breaking fiber fracturing fluid, and a fr