Method for applying temporary plugging agent and application thereof
By screening temporary plugging agents with narrow particle size distribution and optimizing construction parameters, the problem of separation of temporary plugging agents during transport was solved, resulting in more efficient temporary plugging effect and pressure increase, and improving the effect of volumetric fracturing.
CN117211722BActive Publication Date: 2026-06-12CHINA PETROLEUM & CHEMICAL CORP +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2022-06-02
- Publication Date
- 2026-06-12
AI Technical Summary
⚠Technical Problem
Existing temporary plugging agents are prone to separation during migration, resulting in poor temporary plugging effect, difficulty in reaching the critical pressure for crack diversion and complex cracks, and small pressure rise.
⚗Method used
By screening temporary plugging agents with narrow particle size distribution and optimizing construction parameters such as the concentration, viscosity, and flow rate of the carrier fluid, the fluidity and following properties of the temporary plugging agent are improved, thereby enhancing the temporary plugging effect.
🎯Benefits of technology
It significantly improved the plugging effect and pressure rise of the temporary plugging agent, reduced the complexity of the fracture, and enhanced the efficiency of volumetric fracturing.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a construction method and application of a temporary plugging agent. The construction method of the temporary plugging agent comprises the following steps: temporary plugging agent construction parameter optimization, including optimization of a temporary plugging agent particle size range; temporary plugging agent construction; through two-step particle size range screening, a temporary plugging agent with a narrow particle size distribution, which is narrower than a particle size range of a temporary plugging agent in the prior art, is evaluated and screened out; the temporary plugging agent with the narrow particle size distribution can improve a clump ratio of the temporary plugging agent in a conveying process, improve flowability and followability of the temporary plugging agent, further, construction parameters such as a concentration of the temporary plugging agent in a carrying fluid, viscosity of the carrying fluid and displacement are optimized, so that temporary plugging effect of the temporary plugging agent is further improved, thereby, fracture complexity is greatly improved, and volume fracturing reconstruction efficiency is effectively improved.
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