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GB/T 33684-2025Technical specification for seismic data interpretation of petroleum (English PDF)

石油地震勘探资料解释技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 5, 2025

Implementation date

May 1, 2026

Scope

GB/T 33684-2025 is the English-translated version of 石油地震勘探资料解释技术规范.

GB/T 33684-2025 is the Chinese standard "Technical specification for seismic data interpretation of petroleum". Its scope clause reads: This document specifies the basic work, seismic interpretation technology design, and seismic...

Data structural interpretation, seismic sequence stratigraphy interpretation, reservoir prediction, trap and sweet spot element description and evaluation, comprehensive geological research, and report writing.

Requirements for content and deliverables submission. This document applies to the interpretation of two-dimensional and three-dimensional seismic data in the oil and gas exploration and development industry.

It also applies to solid mineral surveys and geothermal resource exploration. This can be used as a reference in areas such as exploration and gas storage site selection. Its clauses include terms and definitions.

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Document preview — GB/T 33684-2025

National Standard of the People's Republic of China

ICS: 75.180.10
Classification: E 11
Replacing: GB/T 33684-2017

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Foundational Work
4.1 Basic Data Collection
4.2 Basic Data Check
4.3 Seismic data quality classification for the target section
5.Seismic Interpretation Technology Design
6.Structural Interpretation of Seismic Data
6.1 Seismic Reflection Geological Latitude Determination
6.2 Structural Interpretation of 2D Seismic Data
6.3 Structural Interpretation of 3D Seismic Data
6.4 Construction Drawing Preparation
6.5 Quality Check of Seismic Data Structural Interpretation
7 Sequence Stratigraphy Interpretation
7.1 Data Preparation
7.2 Basic Work
7.3 Contents of Sequence Stratigraphic Interpretation Studies
7.4 Technical Requirements for Sequence Stratigraphy Interpretation
7.5 Sequence Stratigraphic Interpretation Map
7.6 Quality Check of Seismic Sequence Stratigraphy Interpretation
8.Reservoir Prediction
8.1 Data Preparation
8.2 Basic Work
8.3 Seismic Attribute Analysis
8.4 Azimuth Anisotropy Analysis
8.5 Seismic Inversion
8.6 Comprehensive Reservoir Evaluation
8.7 Result Drawings
8.8 Quality Inspection of Reservoir Prediction Results
9.Description and evaluation of closed and dessert elements (18)
9.1 Elements of Trap Description
9.2 Dessert Description Elements
9.3 Evaluation Content
9.4 Evaluation Technical Requirements
9.5 Closed and Dessert Description Illustrations
9.6 Drawing quality inspection
10 Comprehensive Geological Research
10.1 Basic Requirements
10.2 Structural Feature Analysis
10.3 Stratigraphic and Sedimentary Characteristics Analysis
10.4 Analysis of Hydrocarbon Accumulation Conditions
10.5 Deployment Recommendations
11.Contents of the Results Report
11.1 Project Overview
11.2 Structural Interpretation of Seismic Data
11.3 Sequence Stratigraphic Interpretation of Seismic Strata
11.4 Reservoir Prediction
11.5 Comprehensive Geological Evaluation
11.6 Conclusions and Recommendations
11.7 Main References
11.8 Appendix Figures and Table
12 Results submitted
12.1 Submission Content
12.2 Archiving Requirements
Appendix A (Informative) Seismic Data Interpretation Quality Check
Appendix B (Informative) Format 33 of the Responsibility Table for Deliverables and Maps
Appendix C (Normative) Drilling Compliance Check of Construction Diagrams

1 Scope

This document specifies the basic work, seismic interpretation technology design, and seismic...

Requirements for content and deliverables submission.

This document applies to the interpretation of two-dimensional and three-dimensional seismic data in the oil and gas exploration and development industry. It also applies to solid mineral surveys and geothermal resource exploration.

This can be used as a reference in areas such as exploration and gas storage site selection.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 8423.1 Terminology for the Oil and Gas Industry - Part 1.Exploration and Development

GB/T 8423.2 Terminology for the Petroleum and Natural Gas Industry Part 2.Engineering Technology

GB/T 18190 Oceanographic Terminology - Marine Geology

GB/T 33583 Technical Specification for Seismic Data Acquisition in Onshore Petroleum Exploration

GB/T 33685 Technical Specification for Seismic Exploration Data Processing

GB/T 43126 Technical Specification for Geological Sweet Spot Evaluation of Shale Oil

SY/T 5331 Specification for Elements of Petroleum Seismic Exploration Interpretation Maps

SY/T 5520 Technical Specification for Enclosure Evaluation

SY/T 5615 Specifications and Symbols for Geological Mapping of Petroleum and Natural Gas

SY/T 5735 Geochemical Evaluation Methods for Hydrocarbon Source Rocks

3 Terms and Definitions

The definitions in GB/T 8423.1, GB/T 8423.2, GB/T 18190, GB/T 33583, GB/T 33685 and SY/T 5735 and

The following terms and definitions apply to this document.

3.1 In-phase axis seismicevent

Lines connecting the same phase of each wave in the earthquake record.

3.2

When conducting geological exploration using seismic reflection waves, stratigraphic units are defined based on the characteristics of the reflected waves.

3.3 Standard layer keybed; markerbed

It has obvious and easily identifiable characteristic reflections (layers) on the seismic profile and exists over a large area in a single exploration zone.

SY/T 7774 | GB/T 9711 | SY/T 6996 | GB/T 33683 | GB/T 33685 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 40 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

GB/T 43126-2023Specification for the geological sweet spot evaluations of shale oil

Editions of GB/T 33684

Edition	Title	Revision	Status
GB/T 33684-2025	Technical specification for seismic data interpretation of petroleum	current edition	Current
GB/T 33684-2017	Technical specification of seismic data interpretation	previous edition	In force

This page sells the current edition, GB/T 33684-2025. Earlier editions are listed for reference only.

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