GB/T 24261.2-2017Marine seismic digital streamer system—Part 2: Standards for specifying hydrophone streamer-cable characteristic (English PDF)
石油海上数字地震采集拖缆系统 第2部分：水听器拖缆技术条件
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 7, 2017
Implementation date
April 1, 2018
Scope
GB/T 24261.2-2017 is the English-translated version of 石油海上数字地震采集拖缆系统 第2部分：水听器拖缆技术条件.
GB/T 24261.2-2017 is Part 2 of GB/T 24261 and sets the technical conditions for the hydrophone streamer cable of a marine seismic digital acquisition system used in offshore oil exploration.
It covers the hydrophone combination, the working section, the lead-in section, the stretch section, the deck cable, the optional auxiliary equipment and the filling material, and it applies to the manufacture, the inspection and the quality assessment of such streamer cables.
It defines the hydrophone array, the working section, the lead-in cable, the stretch section, the deck cable and the ballast filling, and a normative Annex A gives the technical indicators of the solid cable hydrophone combination.
It cites GB/T 5096 and GB/T 24261.1. It replaces GB/T 24261.2-2010, was issued on 7 September 2017 and has applied since 1 April 2018.
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Document preview — GB/T 24261.2-2017
National Standard of the People's Republic of China
- ICS
- 75.180.10
- Classification
- E 92
- Replacing
- GB/T 24261.2-2010
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Requirements
- 5 test and test
- Appendix A (Normative) Solid cable hydrophone combination of technical indicators
Foreword
GB/T 24261 "oil maritime digital seismic acquisition streamer system" is divided into three parts.
--- Part 1. Hydrophone technical conditions;
--- Part 2. Hydrophone towline technical conditions;
--- Part 3. Central recording system.
This section GB/T 24261 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 24261.2-2010 "Oil Offshore Digital seismic acquisition streamer system Part 2: Hydrophone streamer technology Conditions ", with GB/T 24261.2-2010 compared to editorial changes in addition to the main technical changes are as follows.
--- Added terms and definitions (see Chapter 3);
--- Increased solid cable and hydrophone combination characteristics and the corresponding technical indicators (see 4.1.3);
--- Fill filling indicators and refinement requirements (see 4.7.1, 4.7.2, 4.7.3, 2010 version of 3.7);
--- Remove the auxiliary equipment output signal (see 4.3.220 version 3.3.2);
--- Added solid cable hydrophone combination feature test (see 5.3);
--- Added Appendix A
1 Scope
GB/T 24261 provisions of this part of the maritime oil exploration towed seismic data acquisition system supporting hydrophone combination, the work For the segment, leading segment, elastic section, deck cables and optional auxiliary equipment, filling the technical requirements and testing requirements.
This section applies to hydrophone towline manufacture, inspection and quality evaluation.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 5096 copper corrosion test method for petroleum products
GB/T 24261.1 Petroleum offshore seismic acquisition streamer system Part 1: Hydrophones technical conditions
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Hydrophone arrays
Two or more hydrophone arranged according to certain rules.
3.2 Work segment Streamer cable section
Cable with seismic data acquisition.
3.3 Lead section Lead-in cable
Anti-wear parts for data transmission, with drag, anti-shake effect, its length depending on the size of the offset, it is connected to the cable winch Between the elastic section.
3.4 Stretch section
Tensile components for data transmission to reduce the noise generated by the vibration of the ship and the tail, which is connected to the leading section and the working section and the working section Between the tail.
3.5 Deck Cable
Connect the cable between the seismographic data recording system on the ship and the leading segment.
3.6 Filling Balast material
Fill the remaining space in the plastic tube of substances, such as cable oil, resin, gel and other substances.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 24261.2
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 24261.2-2017 | Marine seismic digital streamer system—Part 2: Standards for specifying hydrophone streamer-cable characteristic | current edition | Current |
| GB/T 24261.2-2010 | Marine seismic digital streamer system—Part 2: Standards for specifying hydrophone streamer-cable characteristic | previous edition | Superseded |
This page sells the current edition, GB/T 24261.2-2017. Earlier editions are listed for reference only.
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Related Standards
GB/T 24261.1-2009 — Marine seismic digital streamer system -- Part 1: Standards for specifying hydrophone parameters
GB/T 5096-2017 — Test method for corrosiveness to copper from petroleum products by copper strip test
GB/T 50960-2014 — Technical code of safe operating for small hydropower grid
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