GB/T 24261.1-2009 English PDF

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GB/T 24261.1-2009: Marine seismic digital streamer system -- Part 1: Standards for specifying hydrophone parameters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24261.1-2009	209	Add to Cart	3 days	Marine seismic digital streamer system -- Part 1: Standards for specifying hydrophone parameters	Valid

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Basic data

Standard ID: GB/T 24261.1-2009 (GB/T24261.1-2009)
Description (Translated English): Marine seismic digital streamer system -- Part 1: Standards for specifying hydrophone parameters
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E91
Classification of International Standard: 75.180.10
Word Count Estimation: 9,963
Date of Issue: 2009-07-10
Date of Implementation: 2009-12-01
Quoted Standard: GB/T 3102.7-1993; GB/T 3238-1982; GB/T 3947-1996; GB/T 4130-2000; ASTM E 380-1979
Regulation (derived from): National Standard Approval Announcement 2009 No.9 (Total No.149)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the oil offshore digital streamer seismic acquisition system common to three types of hydrophones (piezoelectric hydrophone with integrated preamplifier hydrophone with coupling transformer hydrophone) composition, requirements and calibration methods. This section applies to the manufacture of hydrophones, inspection and quality evaluation.

GB/T 24261.1-2009: Marine seismic digital streamer system -- Part 1: Standards for specifying hydrophone parameters

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Marine seismic digital streamer system Part 1. Standards for specifying hydrophone parameters ICS 75.180.10 E91 National Standards of People's Republic of China Offshore oil digital streamer seismic acquisition system Part 1. Technical conditions hydrophone Posted 2009-07-10 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 24261 "digital oil offshore streamer seismic acquisition system" is divided into three parts. --- Part 1. hydrophone technical conditions; --- Part 2. hydrophone streamer technical conditions; --- Part 3. central recording system. This section is the first part. hydrophone technical conditions. The partial modification of international Society of Geophysics (SEG) sea streamers digital standard Part 1 (geophysical standards, 52,02, 242-248,1987, Part 1). This section redrafted. It is given in Appendix A of this part of the reg number and Geophysics standards, 52,02,242-248,1987, the first title of the content portion of the control list for reference. Because of the special needs of China's oil exploration industry, this section at the time of adoption of international standards has been modified. The given in Appendix B Section and Geophysics standards 52,02,242-248,1987, technical differences between Part 1 and the list of reasons, for reference. This part of the Annex A, Annex B and Annex C is informative appendices. This part is proposed by the China National Petroleum Corporation. This part of the National Oil and Gas Standardization Technical Committee centralized. This section drafted by. China National Offshore Oil Corporation Oilfield Services Limited Geophysical Exploration Division, Chinese Petroleum Corporation Division East geophysical equipment Geophysical Exploration Co., Ltd., Xi'an Branch, oil industry instrumentation Quality Supervision and Inspection Center, MLR Source Guangzhou Marine Geological Survey Bureau. The main drafters of this section. to Cham sea, He Guoxin, Yin Zhenguo, Churong Ying, Zhang Lu, Li Peichang, Cao accounting, Hanze Xi, Chen Jie, Hanxiao Quan, Zhao, and even red. Offshore oil digital streamer seismic acquisition system Part 1. Technical conditions hydrophone

1 Scope

This section GB/T 24261 specifies the offshore oil digital streamer seismic acquisition system common to three types of hydrophones (piezo water Hearing, with integrated preamplifier hydrophones, hydrophone with transformer coupling) of the composition, requirements and calibration methods. This section applies to hydrophone fabrication, inspection and quality assessment.

2 Normative references

The following documents contain provisions which, through reference GB/T 24261 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB 3102.7-1993 Quantities and units of acoustics GB/T 3238-1982 Acoustics volume level and reference value GB/T 3947-1996 Acoustics Terminology GB/T 4130-2000 low-frequency acoustic hydrophone calibration methods ASTME380-1979 name specified 3 Terms, definitions and letter symbols 3.1 Terms and Definitions GB/T 3947-1996 and GB/T 4130-2000 and established the following terms and definitions apply to this section. 3.1.1 Receiving the seismic wave sensor in the water by one or more piezoelectric units can be exposed, it may also have an encapsulate. 3.1.2 Piezoelectric water with preamplifier hearing. The amplifier can amplify the piezoelectric hydrophone output signal, the output impedance of less than direct coupled The output impedance of the piezoelectric element, the desired amplifier power from the internal battery or an external power source, this pre-amplifier may be a voltage, and electrical charge Stream type. 3.1.3 Underwater seismic sensor consists of a transformer with a single or a plurality of piezoelectric units. Within the operating frequency band with transformer coupled hydrophone Low output impedance than the straight lotus piezoelectric unit output impedance. 3.1.4 The piezoelectric hydrophone positive sound pressure (sound pressure increase) under the action of the piezoelectric hydrophone display terminal voltage of positive polarity or charge, usually red FIG. 3.2 letter symbols This part of the letter symbols used in line with GB 3102.7-1993, GB/T 3238-1982, GB/T 3947-1996, ......

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