GB/T 39139.2-2023 in English
VALIDShale gas—Environmental protection—Part 2：Recommended practice for environmental protection of production operations
- Issued on:2023-05-23
- Implemented on:2023-09-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
《GB/T 39139.2-2023页岩气 环境保护 第2部分：生产作业环境保护推荐作法》由TC244（全国天然气标准化技术委员会）归口，主管部门为国家标准委。
Introduction
GB/T 39139.2—2023 Standard Overview
The National Standard of the People's Republic of China GB/T 39139.2—2023 "Shale Gas Environmental Protection Part 2: Recommended Practice for Environmental Protection in Production Operations" aims to standardize environmental protection measures in the process of shale gas development and reduce environmental risks. This standard applies to the entire process of onshore shale gas production, including geophysical exploration, pre-drilling engineering, drilling, fracturing, gathering and transportation system construction, and well closure and withdrawal.
Comparison of standard frameworks
| Links | Core requirements | Keywords | Implementation focus |
|---|---|---|---|
| Geophysical exploration operations | Avoid ecological protection red line areas, reduce land occupation, and optimize survey line layout | Ecological protection, survey line layout, environmentally sensitive areas | Use low-noise equipment and implement temporary land restoration |
| Pre-drilling engineering | Avoid environmentally sensitive areas in the well site layout, and set up cofferdams in key anti-seepage areas | Well site layout, anti-seepage measures, emergency pools | Rationally utilize existing roads and reduce construction land occupation |
| Drilling operations | Use environmentally friendly drilling fluid and strengthen waste collection and treatment | Drilling fluid, cementing materials, and waste management | Implement real-time collection and treatment of cuttings without them falling to the ground |
| Fracturing operations | Promote factory operations, use low-noise equipment, and optimize flowback fluid management | Fracturing fluid, flowback fluid treatment, and proppant | Use electric fracturing pump sets and implement flowback fluid reuse |
| Construction of gathering and transportation systems | Rationally design pipeline layout and strengthen corrosion protection and monitoring | Gathering and transportation pipelines, anti-corrosion measures, environmental monitoring | Set safe distances to avoid crossing sensitive areas |
Implementation recommendations
Case analysis: Optimization of environmental protection measures in fracturing operations
In the fracturing operation of a shale gas field, the use of a factory-based operation mode and an electric fracturing pump group significantly reduced noise pollution. At the same time, the return fluid reuse rate reached 85%, reducing water resource consumption and avoiding environmental pollution.
Implementation steps:
- Clearly define the fracturing fluid reuse plan during the design phase
- Equip with special storage tanks and processing equipment before construction
- Real-time monitoring of flowback fluid quality during operation
- Establish a flowback fluid transportation and reuse mechanism
Analysis of standard technology evolution
From the evolution of the GB/T 39139 series of standards, it can be seen that environmental protection requirements are gradually refined. Compared with the pollution prevention and control focus of drilling operations in the first part, the second part emphasizes the recommended environmental protection practices throughout the production process, reflecting the systematic and comprehensive nature of environmental management.
Future Outlook
With the deepening of shale gas development, future standards will pay more attention to intelligent environmental monitoring and digital management, and promote the deep integration of green energy development and ecological protection.
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