SY/T 5418-1991 General technical requirements for tubing radioactive logging tools
Some standard content:
SY/T 5418-91, Petroleum and Natural Gas Industry Standard of the People's Republic of China
General Technical Conditions for Radioactive Coherence Testers for Oil Pipes
Ministry of Energy of the People's Republic of China
Implementation on July 1, 1992
1 Subject Content and Scope of Application
General Technical Conditions for Radioactive Coherence Testers for Oil Pipes SY/T 541891, Petroleum and Natural Gas Industry Standard of the People's Republic of China
This standard specifies the technical requirements, test methods, inspection rules, packaging, transportation and storage of radioactive coherence testers for oil pipes. This standard applies to the production, inspection methods and quality evaluation of radioactive coherence testers for oil pipes. Reference Standards
GB2423.5 Basic Environmental Test Procedures for Electrical and Electronic Products Test E. Impact Test Method GB2423.10 Basic Environmental Test Procedures for Electrical and Electronic Products Test F. Vibration (sinusoidal) test method GB191 Packaging storage and transportation graphic mark
G.B2829 Periodic inspection counting sampling procedure and sample table General technical conditions for packaging of electromechanical products
JB 2759
3 Product classification
Oil pipe radioactivity tester, according to its maximum use environment temperature escape classification see Table 1: Table 1 Product classification
Classification number
4 Technical requirements
4.1 Environmental conditions
Maximum use environment temperature C
4.1.1 Maximum use environment temperature: 100, 125 or 155°C. 4.1.2 The maximum pressure that the instrument should withstand is 50, 60 or 70MPa. 4.1.3 Maximum test speed: 600m/h.
4.1.4 Vibration conditions:
Vibration frequency: 10-~55Hz3
100 Live pipe radioactive tester
125 Shantou radioactive tester
155 Oil pipe radioactive tester
Vibration acceleration, 50m/sz
Vibration direction, vertical and horizontal directions are vibrated in turn, sweep frequency cycle 3 times, 1 octave per minute. 4.1.5 Impact conditions;
Impact acceleration: 500m/s3
Duration: 1lmss
Approved by the Energy of the People's Republic of China on January 15, 1992
Implemented on July 1, 1992
SY/T 5418--91
Impact direction: vertical and horizontal directions are impacted 3 times in turn. 4.2 Main technical indicators
4.2.1 Under the highest ambient temperature, the instrument works continuously for 1h, and the counting rate changes less than 5%. 4.2.2 The current changes by ±10%, and the counting rate changes less than ±3%. 4.2.3 Output pulse amplitude: Loading 5000m cable output pulse amplitude is greater than 1.0V. 4.2.4 Sensitivity and linear range
a, sensitivity: 0.55CPS/APT,
b. Linear range, 0～500API, nonlinear error is less than 10%. Note: ①API: (AmcricanPetroleumInstitute) natural gamma logging standard unit, ?CPS: (CountsPerSecond) pulse counts per second. 4, 2.5 Appearance requirements: There should be no scratches, cracks and damage on the surface of the coated parts, and the connecting threads and screws should not have burrs, slip buckles and bite.
4.2.6 After the instrument is tested at the specified maximum ambient temperature and the corresponding pressure, it shall be tested indoors, and the results shall meet the technical index requirements:
5 Test method
5.1 Maximum ambient temperature test
5.1.1 Test equipment: automatic temperature control oven DC regulated power supply;
Calibrator:
Digital square meter,
Corresponding scale (standard source).
5.1.2 Test steps
a. The instrument is placed in the oven at room temperature, and the temperature is raised to the specified ambient temperature at a heating rate of 0.7-~1°C/min, and the temperature is kept constant at this temperature for 1 h
b. During the heating and constant temperature process, the data is recorded every 15min, and the counting error is calculated, which shall meet the requirements of 4.2.I. 5.2 Downhole current test
5.2.1 Test equipment: automatic temperature control oven, ampere meter,
DC regulated power supply
calibrator.
5.2.2 Test steps,
a, the instrument under test is placed in the oven at room temperature, and the temperature is raised to the specified ambient temperature at a heating rate of 0.7~1°C/min, and the temperature is kept constant at this temperature for 15 minutes
b, during the heating and constant temperature process, the specified downhole current will change by ±10%, and the data will be recorded every 15 minutes. The calculation error should meet the requirements of 4.2.2. 5.3 Output pulse amplitude test
5.3.1 Test equipment: 5000m cable,
digital square meter
general display.
5.3.2 Test steps
Connect the instrument under test to a 5000m standard push cable, power on the instrument1. Test its output pulse amplitude, and the result should meet the requirements of the loading output specified in 4.2.3.
5.4 Vibration test
5.4.1 Test conditions,
SY/T5418-91
. The instrument is not powered on and is in a non-working stateb. Test equipment, electromagnetic, mechanical vibration test bench or hydraulic moving test bench. 5.4.2 Test steps,
a. The instrument under test is fixed on the vibration test bench with a clamp to hold the body and the terminal as requiredb. Vibration parameters: as specified in 4.1.4
c. Under the above-mentioned vibration parameters, test according to the requirements of GB2423.10, d. After the vibration test, perform appearance and technical index inspection. 5.5 Impact test
5.5.1 Test conditions,
a, the instrument is in non-working state,
b. Impact test equipment: impact machine.
5.5.2 Test steps:
a. The tested instrument is clamped with a fixture to clamp the body and the terminal as required and fixed on the impact machine: b, Impact parameters: as specified in 4.1.5, c, under the above-mentioned impact parameters, the test is carried out in accordance with the requirements of GB2423.5, d, after the impact test is completed, the appearance and technical indicators are inspected. 5.6 High temperature and high pressure test
5.6.1 Test conditionsbzxz.net
a. The high temperature and high pressure test of the whole downhole instrument is a sampling test specified after the temperature and pressure tests of the downhole instrument have been evaluated and qualified.
b. The instrument is powered on and in working condition.
c Test equipment: high temperature and high pressure container,
calibrator,
DC regulated power supply
general oscilloscope.
5.6.2 Test steps:
a. The test instrument is placed in the high temperature and high pressure container, and the temperature and pressure are kept constant at this temperature and pressure. The instrument is powered on: b. After the high temperature and high pressure test is completed, the instrument is taken out after natural cooling and tested at room temperature. Its technical indicators should meet the requirements of 4.2 of this standard.
5.7 Appearance inspection
Use visual inspection according to the requirements of 4.2.5 of this standard. The appearance inspection content should include the surface quality of the coated parts, the appearance of the instrument and the correctness of the markings.
5.8 Sensitivity and linear range measurement
5.8.1 Test conditions,
a. There shall be no radioactive source within 10m around the instrument being calibrated. The measurement conditions with and without the calibrator must be the same. The instrument shall be placed horizontally at least 1.5m above the ground.
b. Select a standard instrument, mark the position of the recording point of the instrument, and install the stabilizer. c. Standard scale.
5.8.2 Test steps,
a. The instrument is centered for measurement, and its recording point is aligned with the midpoint of the formation. The measurement result should meet the accuracy of 1%. 3
SY/T 5418-91
b, after calibrating the zero line of the instrument, measure the natural gamma count rate values of the high and low radioactive layers respectively, and perform calculations on the measured data. The results should meet the requirements of 4.2.4 of this standard. The calculation formula is: M
S=Nm-Nlow
S——API value corresponding to a CPS
Scale value of the scale well
Nhigh-counting value of the instrument in the high radioactive layer Vfe-counting value of the instrument in the low radioactive layer. 6 Inspection rules
6.1 Factory inspection
6.1.1 Each set of instruments shipped out of the factory must be tested and inspected according to the technical indicators specified in 4.2 of this standard. 6.1.2
Each set of instruments shipped out of the factory must be tested and inspected according to 4.1.1. Test and inspection shall be conducted at the maximum ambient temperature specified in the factory. See Table 2 for inspection items and methods.
Table 2 Factory inspection items and methods
6.2 Type inspection
Inspection items
Maximum ambient temperature inspection
Current change inspection
Pulse amplitude inspection
Sensitivity and level range measurement
Technical requirements
Test light method
6.2.1 Samples for type inspection and its test shall be sampled and inspected in batches that have passed the factory inspection according to the provisions of GB2829. 6.2.2
The cycle of type inspection shall not exceed two years. Type inspection and testing shall also be conducted in the following cases: a. Change of design of key and important parts
b. Change of key process
c. Unstable quality
d. Production is stopped for more than one year and then restarted.
Type inspection and test items and methods are shown in Table 3. 6.2.3
Table 3
Type inspection items and methods
Inspection items
Maximum ambient temperature inspection
Lower and lower current change inspection
Output pulse temperature inspection
Sensitivity and linear range
External inspection
Vibration test
Impact test
High temperature and high pressure test
Technical requirements
Test methods
sY/T 5418-—91
6.2.4 Re-inspection: Inspect in accordance with GB2829, detect unqualified products and find out the reasons. If it is a product quality problem, additional sampling inspection should be carried out. If there are still unqualified products, this batch of products should be fully inspected. 7 Marking, packaging, transportation and storage
7.1 Marking
Each instrument leaving the factory shall have the following markings a. Manufacturer name and product mark
b. Product model and name:
c. Manufacturing month and factory number.
7.2 Packaging
a. Instrument packaging shall be packaged in accordance with the provisions of JB2759; b. The attached random documents, instruction manual, product certificate, packing list, etc. shall be sealed with plastic and placed in the packaging box! C. The packaging box marking shall comply with the provisions of GB191. 7.3 Transportation
The packaged instrument is suitable for transportation by land, sea or air. It must be protected from direct rain and snow and strong vibration and impact. 7.3 Storage
The packaged instrument should be stored in a dry and ventilated room with an ambient temperature of 10°C to +55°C and a relative humidity of no more than 90%. Long-term storage should be regularly unpacked and checked, at least once every 6 months. Additional remarks:
This standard was proposed by the National Petroleum Exploration Instruments and Meters Professional Standard Promotion Committee and was assigned to the Department. This standard was drafted by Xi'an Petroleum Exploration Instruments General Factory. The drafters of this standard were Jie Maogui and Ren Xiuyan.
This standard continued to be effective after the review in 199, and the review result has been approved by the State Administration of Petroleum and Chemical Industry.
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