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Mechanical Industry Standard of the People's Republic of China
JB/T6278—92
Water Well Drilling Rig
Published on June 10, 1992
Test Methods
Implemented on July 1, 1993
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Water Well Drilling Rig
1 Subject Content and Scope of Application
Test Methods
This standard specifies the performance test and production test methods of the complete machine of the mechanical drive water well drilling rig. JB/T6278—92
This standard applies to the rotary rotary agricultural water well drilling rig and percussion agricultural water well drilling rig (hereinafter referred to as the drilling rig) with mud positive circulation, reverse circulation and positive and reverse double circulation.
2 Reference standards
GB5667 Test methods for agricultural machinery production
GB3767
Determination of sound power level of noise source
Engineering method and quasi-engineering method
GB4331 Test methods for agricultural trailers
3 Basic test conditions
The drilling rig should be inspected and qualified and in the specified working technical state. 2 Skilled operators and testers should be equipped during the test. 3.2
3.3 When conducting various performance tests, the drilling rig should be placed on a solid and flat ground and in a horizontal state. 3.4 The geological conditions of drilling should meet the requirements of the drilling rig. 3.5 The mud should meet the requirements of drilling.
3.6 The main instruments used in the test are automobile and tractor comprehensive tester, point temperature meter, three-phase watt-hour meter, precision sound level meter, stopwatch, etc. Each instrument should have a valid calibration certificate. 4 Performance test
4.1 The performance test on the test day is to measure the performance indicators of the drilling rig to assess whether it meets the design requirements. 4.2 Test items and methods
4.2.1 No-load operation test
4.2.1.1 The turntable and gearbox should be operated from low gear to high gear for 10 minutes each. 4.2.1.2 Various winches should be operated for 15 minutes. 4.2.1.3 When carrying out 4.2.1.1 and 4.2.1.2, check the working conditions of the clutch and brake. 4.2.1.4 Count and use a stopwatch to measure the turntable speed or impact times of each gear. 4.2.2 Tests of winch lifting capacity, derrick bearing capacity and braking performance 4.2.2.1 Tests to be conducted before drilling
4.2.2.2 Lift a load equivalent to 1.25 times the lifting force and hold it for 308 meters. Repeat the test three times. Observe that the derrick (gun rod) should not be deformed significantly. The winch and brake should work normally. The results are recorded in Table 1. 4.2.2.3 Braking performance test
Lift a load equivalent to the lifting force to half of the maximum lifting height and brake. Hold it for 30 seconds and then lower it to 2 meters above the ground and brake. Measure the braking distance. Repeat the test three times. Take the maximum value and record the results in Table 1. For rotary drilling rigs, single rope is allowed and the load is reduced proportionally for testing. Approved by the Ministry of Machinery and Electronics Industry on June 10, 1992 and implemented on July 1, 1993
4.2.3 Road test of towed drilling rig
JB/T6278—92
4.2.3.1 Fully loaded. Measured with a car-tractor combined tester and a measuring tape or a stopwatch and a measuring tape. 4.2.3.2 Test items
Inspection driving test: use a tractor to pull at a speed of 20km/h, run 40km on a cement road, and check the technical status of the trailer; braking distance, braking stability deceleration test: perform in accordance with GB4331, and record the results in Table 2; b.
Parking brake performance test: perform in accordance with GB4331, and record the results in Table 2; c.
Unit mobility test: perform in accordance with GB4331, and record the results in Table 2; d.
Unit rolling and sliding distance test: perform in accordance with GB4331, and record the results in Table 2. e.
5 Production test
5.1 Test purpose
The production test is to assess the actual drilling capacity, performance stability, reliability, economy, convenience and safety of the drilling rig. 5.2 Test requirements
5.2.1 The general requirements of the test shall comply with the provisions of GB5667. 5.2.2 The production test shall be conducted in no less than 2 wells, of which the drilling depth of one well shall reach the design index and the drilling depth of another well shall exceed the design index by 5%.
5.2.3 The production test may be conducted during the reliability test. 5.3 Test content
5.3.1 Production assessment
5.3.1.1 During the whole process of production test, the drilling time, auxiliary time, drilling depth and energy consumption of each well shall be recorded realistically, and the drilling depth, total drilling operation time, average drilling speed, pure drilling speed, drilling time utilization factor and total energy consumption shall be sorted out, and each data shall be recorded in Table 3.5.3.1.2 After the well is completed, a stratigraphic column chart shall be drawn. 5.3.1.3 The drilling depth and opening diameter of the deepest well shall be recorded in Table 1.5.3.1.4
Observe the convenience of use of the drilling rig during operation, the rationality and safety of the operating mechanism layout. Record the fault conditions during the operation of the drilling rig, and record the fault conditions and causes in Table 4. 5.3.1.6 When the drilling rig reaches 50% of the drilling depth, the drilling rig shall work continuously for 1 hour and measure the following items. The results shall be recorded in Table 1. Turntable speed or number of impacts: count and measure with a stopwatch. a.
b. Observe the impact mechanism of the impact drill. The impact beam shall not be twisted or axially vibrated during impact, and the buffer mechanism shall not have drumming sound. Drilling rig noise: Use a precision sound level meter to detect. The difference between the noise and the background noise should be greater than 10dB(A). If it is less than 10dB(A), it should be corrected according to the provisions of c.
GB3767. The noise measurement point is 2m away from the outside of the drilling rig (excluding the tower and the string), 4 points in front, back, left and right, and 1.2m away from the ground. The probe is pointed to the noise source, and the maximum value is taken at these 4 points. d. The bearing temperature rise is measured with a point thermometer immediately after shutdown, and the maximum value is taken. 5.3.2 Production verification
5.3.2.1· During the production test, each drilling rig selects a well to be drilled to a depth of 20m and starts production verification for three consecutive shifts. 5.3.2.2 The items measured in the production verification are all the contents of Article 5.3.1.1 of this standard, and the results are recorded in Table 3.5.3.3 Technical Index calculation method
5.3.3.1 The total drilling operation time is calculated according to formula (1): T=Ti+T..
Where: T is the total drilling operation time, h;
T, — drilling time. h;
T is the time for drilling up and down the drill rod for rotary type, and the time for drilling down, lifting the drill and removing slag for impact type, h. 5.3.3.2 The average drilling speed is calculated according to formula (2): V,
Where: V, average drilling speed, m/h;
H drilling depth, m.
5.3.3.3 The pure drilling speed is calculated according to formula (3): Formula Where: V is pure drilling speed, m/h.
JB/T627892
5.3.3.4 Drilling time utilization coefficient, calculated according to formula (4): H
5.3.4 Energy consumption measurement
When the drilling rig is powered by a diesel engine, the fuel consumption is measured by the mass method or volume method; when the drilling rig is powered by an electric motor, the power consumption is measured by an electric meter.
6 Reliability test
Record the faults that occur during the operation of the drilling rig, and record the fault conditions and causes in Table 4. The total test time of a drilling rig with a drilling depth greater than 100m should be Not less than 1300 hours. For drilling rigs with a drilling depth of less than or equal to 100m, the total test time should be not less than 1000 hours. 7 Test report
7.1 After the test, the test records should be sorted out and a test report should be written. 7.2 Contents of the test report
7.2.1 Test overview: state the purpose and requirements of the test, the name, model and number of prototypes, the research and development unit and the prototype providing unit, the units participating in the test, the time and place of the test, and the amount of work completed. 7.2.2 Results and analysis of performance tests, production tests and reliability tests. 7.2.3
Conclusion.
Problems and suggestions for improvement.
Attached table and photos.
Drilling rig model:
Manufacturer:
Measurement date:
Project name
Drilling depth m
Opening diameter mm
Lifting capacity of winch
Impact type
Rotary type
Impact type
Rotary type
Recorder:
Drilling rig model:
Manufacturer:
Braking distance m
Derrick bearing capacity kN
Drilling rig noise dB(A)
Sliding bearing temperature rise℃
Rolling bearing temperature rise℃
Impact timesmin
Impact mechanism
Drilling tool masskg
Drill pipe diameter
Turntable speedr/min
Braking distancemwww.bzxz.net
Braking stable deceleration
Parking brake
Unit mobility
Unit rolling distance
Recorder:
JB/T62 78—92
Table 1 Basic parameter measurement table
No. 1 prototype factory number:
No. 2 prototype factory number:
No. 3 prototype factory number:
Technical requirements
Table 2 Trailer drilling rig road test table
Test location:
Test date:
Technical requirements
Measured results
Test conclusion
Drilling rig model:
Manufacturer:
Prototype number||t t||Recorder:
Drilling machine model:
Manufacturer:
Recorder:
Additional remarks:
Accumulated working time h
JB/T6278-92
Table 3 Summary of production verification and production test
Date:
Table 4 Reliability test record
Test location:
Failure conditions and causes
This standard is proposed and managed by the China Agricultural Mechanization Science Research Institute. This standard is drafted by the Hebei Mechanical Science Research Institute. The main drafters of this standard are Liu Yihao, Wang Zhiyun, Liu Maojiang, Zhang Fazhizhong
From the date of implementation of this standard, NJ21881 "Test Methods for Water Well Drilling Rigs" will be invalidated. Energy consumption
Diesel kg Electricity kW/
People's Republic of China
Mechanical industry standard
Test method for water well and drilling rig
JB/T6278-92
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing 100081)
Copyright reserved. No reproduction allowed
Format 880×12301/16 Printing sheet 1/2 Number of words 10000 First edition in June 1993 First printing in June 1993 Number of copies 00.001-500 Price 1.60 yuan
No. 0898
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