SY/T 7833-2024 Technical requirement for pilot test of gas field development English, Anglais, Englisch, Inglés, えいご
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ICS
E
Professional standard of the People's Republic of China
SY/T 7833-2024
Technical requirement for pilot test of gas field development
气田开发先导试验技术要求
(English Translation)
Issue date: 2024-12-25 Implementation date: 2025-06-25
Issued by National Development and Reform Commission, P.R.C
Contents
Foreword
Introduction
1 Scope
2 Normative References
3 Terms and Definitions
4 Objectives and Tasks of Development Pilot Tests
4.1 Objectives
4.2 Tasks
5 Basic Conditions for Development Pilot Tests
5.1 Seismic and Geological Data
5.2 Drilling and Testing Data
5.3 Analysis and Testing Data
5.4 Degree of Reserve Control
6 Technical Requirements for the Design of Development Pilot Test Content
6.1 Technical Requirements for Test Area Selection
6.2 General Technical Requirements
6.3 Special Technical Requirements for Complex Gas Reservoirs
6.4 Auxiliary Engineering Technical Requirements
6.5 Implementation Arrangements
6.6 Investment Estimation
7 Technical Requirements for the Implementation of Development Pilot Tests
7.1 Data Acquisition
7.2 Tracking and Evaluation
8 Technical Requirements for Summarizing the Results of Development Pilot Tests
8.1 Re-understanding of Geological Conditions for Gas Reservoir Development
8.2 Adaptability of Development Technical Strategies
8.3 Adaptability of Main Development Process Technologies
8.4 Feasibility of Large-scale Economical Development
Appendix A (Normative) Development Pilot Test Design Report
Appendix B (Normative) Summary Report on the Results of Development Pilot Tests
Bibliography
Technical Requirements for Development Pilot Tests in Gas Fields
1 Scope
This document specifies the content and technical requirements for development pilot tests in carbonate, clastic, volcanic, and metamorphic gas fields.
This document applies to development pilot tests during the early evaluation stage of carbonate, clastic, volcanic, and metamorphic gas fields. Other types of gas fields and other development stages of gas fields may refer to this document.
2 Normative References
The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
DZ/T 0217 Specification for oil and natural gas reserves estimation
SY/T 5089 Daily drilling report form for petroleum and natural gas
SY/T 5154 Sampling methods for reservoir fluid
SY/T 5158 General specification for petroleum exploration imaging logging system
SY/T 5366 Technical specification for coring data acquisition in oilfield development wells
SY/T 5440 Technical specification for well testing of natural gas wells
SY/T 6106 Technical requirements for gas field development program preparation
SY/T 6110 Methods for gas reservoir description
SY/T 6125 Procedure specification for well testing, gas production and performance monitoring of gas wells
SY/T 6176 Technical specification for data acquisition of gas reservoir development wells
SY/T 6177 Technical requirements for economic evaluation of gas field development program and adjustment program
SY/T 6276 Petroleum and natural gas industries — Health, safety and environment management systems
SY/T 6920 Design specification for offshore drilling engineering
SY/T 10047 Specification for environmental protection design of offshore oil (gas) field development engineering
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
development pilot test
For gas reservoirs with complex characteristics, unclear development technical strategies, uncertain main development process technologies, and large scale, a representative test area is selected for preliminary development following the formal development design approach. The objectives are to evaluate the correctness of geological understanding, the scientific soundness of technical strategies, the adaptability of main process technologies, and the feasibility of economical development.
4 Objectives and Tasks of Development Pilot Tests
4.1 Objectives
For gas reservoirs that are highly representative, lack mature development experience for reference, and have unclear main development technologies, the goals are to deepen the understanding of geological characteristics, grasp production performance patterns, test and optimize efficient, low-cost, and environmentally friendly gas field development technical strategies and main process technologies by analyzing part of the gas reservoir. This aims to improve the reserve utilization rate of the gas reservoir, reduce overall development risks, support the declaration of proved geological reserves and the preparation of development plans, and lay the foundation for large-scale and economical development.
4.2 Tasks
Conduct geological characteristic description of the gas reservoir, analyze the complex geological and engineering problems faced in gas reservoir development, select representative blocks (or well groups), design and arrange research test items, content, and workload accordingly, deepen the static and dynamic understanding of the gas reservoir, and solve key technical problems constraining the large-scale and economical development of the gas reservoir. Before conducting a pilot test, the gas field shall prepare a development pilot test design report, the technical requirements for which shall comply with Appendix A. After the pilot test, a summary report on the results of the development pilot test shall be prepared, the technical requirements for which shall comply with Appendix B.
5 Basic Conditions for Development Pilot Tests
5.1 Seismic and Geological Data
The gas reservoir area is covered by 3D seismic data or 2D seismic data with a grid of 2 km × 2 km. Existing geological results data such as structure, traps, sedimentation, stratigraphy, reservoirs, and physical properties are available.
5.2 Drilling and Testing Data
Includes data from exploration wells or appraisal wells, such as logging, coring, well logging, well testing, as well as drilling and completion engineering, stimulation operations, and testing data.
5.3 Analysis and Testing Data
Includes analysis and testing data on rocks and minerals, fluids, seepage, mechanics, etc.
5.4 Degree of Reserve Control
For gas reservoirs with relatively clear geological understanding, a certain scale, and reserves determined at the controlled level or above, the reserve estimation shall comply with DZ/T 0217 and be approved through review.
6 Technical Requirements for the Design of Development Pilot Test Content
6.1 Technical Requirements for Test Area Selection
6.1.1 Analysis of Gas Reservoir Characteristics and Development Difficulties
According to the methods specified in SY/T 6110, describe the structural, sedimentary, stratigraphic, reservoir, fluid and seepage, productivity, and production performance characteristics of the gas reservoir, and summarize the main features of the gas reservoir. Based on the current status of gas reservoir exploration and development technology, identify key geological and engineering technical problems that constrain reserve utilization and economical development of complex and special gas reservoirs.
6.1.2 Selection of Test Area (Well Group)
Based on the test objectives and tasks, select blocks (well groups) with good data foundation, representative gas reservoir characteristics, and minimal surface supporting workload as the development pilot test area (well group). The basic principles are as follows:
— Rational utilization of natural gas resources;
— Full utilization of existing gas exploration wells (appraisal wells) and existing surface gathering and processing capacities;
— Areas representative in terms of reservoir characteristics, gas-water distribution, and gas well productivity;
— Compliance with health, safety, and environmental requirements.
6.2 General Technical Requirements
6.2.1 Geology and Gas Reservoir Engineering
