1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2520_201301 SURFACE VEHICLE STANDARD J2520 JAN2013 Issued 2002-07 Revised 2013-0
5、1 Superseding J2520 AUG2007 Classification, Nomenclature, and Specification Definitions for Directional Drilling Tracking Equipment RATIONALE Updated and clarified definitions. 1. SCOPE This SAE Standard applies to directional drilling electronics and tracking equipment of the following types: - Tra
6、cking Transmitter - Tracking Receiver - Telemetry Device - Remote Display This type of tracking equipment is typically used with Horizontal Earthboring Machines as defined in SAE J2022. 1.1 Purpose The purpose of this document is to define common terms and commercial specifications associated with t
7、racking equipment used in the horizontal earthboring industry. 2. REFERENCE 2.1 Applicable Document The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publication Availab
8、le from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J2022 Classification, Nomenclature, and Specification Definitions for Horizontal Earthboring Machines SAE J2520 Revised JAN2013 Page
9、 2 of 8 3. DEFINITIONS 3.1 PILOT BORE PATH The centerline location of the pilot bore. 3.2 AS-BUILT The actual map derived from measurements received by tracking receiver. 3.3 BORE PATH LENGTH The distance from the entry point to the exit point along the actual bore path. 3.4 DEPTH The vertical dista
10、nce from the surface to the transmitter. 3.5 DRILL STRING COMMUNICATION Data that is communicated, at least in part, through the drill string. 3.6 HEADING An angle of direction in the horizontal plane relative to true or magnetic north. 3.7 INSTALLED PATH The centerline of the completed bore. 3.8 PL
11、ANNED PATH The planned location for the bore. 3.9 LEFT AND RIGHT DEVIATION The distance measured perpendicular to the reference line when facing the direction the drill rig is heading. 3.10 LEFT AND RIGHT STEERING INDICATOR Display indicating amount of left/right steering required to proceed on the
12、intended path to a target point given in degrees, distance or means of steering indication. 3.11 LOGGING FUNCTION Hardware or software or both are used for collecting the data about the drilling operation. SAE J2520 Revised JAN2013 Page 3 of 8 3.12 PITCH The angle of the tracking transmitter relativ
13、e to the horizontal plane. 3.13 PLANNING FUNCTION A system used for planning and displaying the projected bore path in relation to known points above ground, below ground or both. 3.14 REFERENCE LINE A predetermined line or set of surface characteristics used to measure and document the location of
14、the planned path, actual bore or installed path. 3.15 REMOTE DISPLAY A device at or near the drilling unit, used to display information communicated from the tracking receiver. 3.16 ROLL Rotation about the longitudinal axis of the transmitter shown in degrees or segmented displays, usually starting
15、from a twelve oclock position. 3.17 SURVEY PATH DISTANCE Horizontal distance measured along the reference line to the point of interest. 3.18 TELEMETRY RECEIVER A device that receives data and converts it into electric output. 3.19 TELEMETRY TRANSCEIVER A device that receives and displays data. 3.20
16、 TELEMETRY TRANSMITTER A device that sends data to the telemetry receiver above ground. 3.21 TRACKING RECEIVER A portable device used above ground that detects the signal from the tracking transmitter. 3.22 TRACKING TRANSMITTER A removable device that fits in the drill pipe and measures parameters a
17、bout the drill bit and the drilling process and emits electromagnetic signals. Note that the terms transmitter, beacon, sonde and probe are often used interchangeably. 3.23 YAW The intended angle of a heading relative to the reference path of a horizontal plane. 3.24 UPDATE RATE The delay in updatin
18、g changed parameters, measured in seconds. SAE J2520 Revised JAN2013 Page 4 of 8 3.25 MAXIMUM DEPTH The distance reached where loss of depth reading occurs. 3.26 MAXIMUM DATA SIGNAL DEPTH The distance reached where loss of data occurs. 4. SPECIFICATION GUIDELINES 4.1 Standard Drill Head for Tracking
19、 Transmitter Specifications Tracking Transmitter specifications shall be determined in the following standard drill head housing configuration: - Steel housing of drill head is 76 mm. - The drill head has a minimum of 4 symmetrical slots. - If the standard drill head housing is not used, the manufac
20、turer shall specify the housing used. 4.2 Tracking Transmitter Range - in standard drill head, unless specified 4.2.1 Range specifications shall be derived from horizontal measurements taken while transmitter is inside standard drill head and above ground. 4.2.2 Maximum distance capacity, measured i
21、n meters: - Maximum Depth - Maximum Data Signal Depth 4.3 Tracking Transmitter Battery Life - in standard drill head, unless specified 4.3.1 Battery life is measured in hours. 4.3.2 Battery life is specified after meeting the following test conditions: - Battery life is measured while the transmitte
22、r is inside the standard drill head housing. - Battery life duration is measured while the transmitter is in continuous operation. - Temperature of the transmitter and surrounding drill head is maintained at 21 C 2 C. 4.4 Tracking Transmitter / Receiver Depth Accuracy - in standard drill head, unles
23、s specified Depth accuracy is specified when the following conditions are met: - The transmitter is out of the ground and inside the standard drill head housing. - Depth readings obtained while head is positioned approximately 1 m above ground while a horizontal distance measurement is taken. - Test
24、 measurements taken at 1.5 m intervals showing range of accuracy at each interval indicated by dividing the difference between the actual and measured depth by the actual depth or as specified by the manufacturer. SAE J2520 Revised JAN2013 Page 5 of 8 4.5 Tracking Transmitter / Receiver Location Acc
25、uracy If specified by the manufacturer, conditions of the tests should be disclosed. 4.6 Tracking Transmitter Pitch Accuracy The following test conditions shall be met when determining pitch accuracy: - The transmitter pitch is measured on an inclinometer at a temperature of 21 C 2 C. - Pitch accura
26、cy measurements are taken in all roll positions. - Specify accuracy variations at given pitch angles over the operating range. (Individual manufacturers present their own angles and variations.) 4.7 Tracking Transmitter / Receiver Update Rate Manufacturer shall list the following data parameters tha
27、t are updated: - Roll of the transmitter, read from the tracking receiver. - Pitch of the transmitter, read from the tracking receiver. - Temperature of the transmitter, read from the tracking receiver. - Location of the transmitter, displayed on the tracking receiver. - Depth of the transmitter, sh
28、own on the tracking receiver. - Battery Status of the transmitter, read from the tracking receiver. 4.8 Tracking Transmitter Dimensions Physical dimensions of the transmitter shall be shown as specified in 4.8.1.1 through 4.8.1.3 and in Figure 1. (Refer to Figure 1) FIGURE 1 - TRACKING TRANSMITTER D
29、IMENSIONS SAE J2520 Revised JAN2013 Page 6 of 8 - Length The longitudinal distance between the outer extremities of the transmitter housing. Tolerances shall be included. - Diameter The maximum outside diameter of the transmitter housing, tolerances shall be included. - Weight The measured weight of
30、 a fully operational transmitter including the battery. 4.9 Temperature Operating Range - Tracking Transmitter and Receiver The temperature operating range is determined by the following: - The minimum and maximum temperature for an infinite time range where shutdown occurs without permanent damage.
31、 - The minimum and maximum temperature where permanent damage to the transmitter occurs. 4.10 Tracking Receiver Battery Life 4.10.1 Battery life is measured in hours. 4.10.2 Battery life of the receiver is determined under the following conditions: - While the receiver is turned “On” - While the rec
32、eiver is transmitting data (telemetry “On”) - While the receivers Back Light is “ON” (if applicable). A battery life may also be provided with the Back Light “Off” - While testing at a temperature of 21 C 2 C - The type of battery used in the test shall be specified 4.11 Tracking Receiver Weight The
33、 weight of the receiver in operating configuration (including batteries). 4.12 Tracking Receiver Dimensions Physical dimensions of the receiver shall be shown as specified in 4.12.1 through 4.12.3 and in Figure 2. A picture or illustration or both can be used if the receiver has variable or unusual
34、dimensions. SAE J2520 Revised JAN2013 Page 7 of 8 FIGURE 2 - TRACKING RECEIVER DIMENSIONS 4.12.1 Length The longitudinal dimension between the outer extremities of the receiver. 4.12.2 Width The lateral dimension between the outer extremities of the receiver. 4.12.3 Thickness The perpendicular dimen
35、sion to the length and the width of the outer extremities of the receiver. 4.13 Telemetry Data telemetry characteristics specifications: - Frequency of the signal - The sensitivity of the data telemetry device listed in dBm and micro-volts (mV) - Power output in (milliwatts) of the device - Range of
36、 the device, which is the maximum demonstrated distance when used in open (line of sight) terrain, at normal operating height SAE J2520 Revised JAN2013 Page 8 of 8 4.14 Remote Display Specifications detailing all remote displayable data types such as: - Outputs (display information) - Battery life a
37、t 21 C 2 C. (all features operating, same as transmitter) - Battery type (if required) - Operating weight with and without batteries (if required). - Dimensions (height, width, thickness) - Temperature/humidity limits - Vibration capacity - Update rate (delay in updating changed parameters, measured
38、 in seconds) - Options - Mapping - Multiple channels - Data output ports 5. NOTES 5.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this docum
39、ent. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE MTC9, TRENCHING AND HORIZONTAL EARTHBORING MACHINES COMMITTEE
