CN102175545B - Test method for simulating working mechanism of drilling rig for gas drilling - Google Patents
Test method for simulating working mechanism of drilling rig for gas drilling Download PDFInfo
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- CN102175545B CN102175545B CN201110009874XA CN201110009874A CN102175545B CN 102175545 B CN102175545 B CN 102175545B CN 201110009874X A CN201110009874X A CN 201110009874XA CN 201110009874 A CN201110009874 A CN 201110009874A CN 102175545 B CN102175545 B CN 102175545B
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Abstract
The invention relates to a test method for simulating a working mechanism of a drilling rig for gas drilling, and the method is used in the field of petroleum and gas drilling. The method comprises an erosion abrasion test method for the drilling rig for gas drilling, a force-bearing test method for the drilling rig for gas drilling and a fatigue fracture test method for the drilling rig for gas drilling, wherein the erosion abrasion test method for the drilling rig for gas drilling comprises the following steps: 1) before testing, fixing a testing derrick on a cement foundation and weighting out the weight of the drilling rig on a test section before testing; 2) starting different combinations of fans and then adjusting and controlling the air pressure and air quantity required by the test; 3) stopping blowing after testing for a period of time and recording the delta 2 at the moment; and 4) taking out the drilling rig on the test section and then weighting the drilling rig, thereby acquiring the abrasion loss of the drilling rig on the test section within unit time. The invention provides a convenient test method for researching the related problems of the working mechanism of the drilling rig for gas drilling in the gas drilling process, such as erosion abrasion, force-bearing and fatigue fracture failure of the drilling rig for gas drilling, and the like.
Description
Technical field
The present invention relates to be used for the test method of a kind of analog gas well drilling tool working mechanism of oil and gas well drilling, belong to oil and gas well drilling technology field.
Background technology
At present, gas drilling can effectively improve ROP because of the advantage of himself, effectively protects hydrocarbon zone, helps hole deviation control, overcomes advantage such as leakage and has fairly obvious economic benefit and social benefit.Therefore, the gas drilling technology becomes one of effective technology of China's oil-gas exploration and development just day by day.But the drilling tool failure frequency is far above the drilling fluid drilling well in the gas drilling, and the drilling tool failure accident takes place frequently and seriously restricted the scale application of gas drilling technology.Theoretical analysis and experimental study about the gas drilling drilling tool failure at present has initial achievements; Known gas drilling drilling tool test method; Landwaste is to the drilling tool erosive wear in can only single simulation gas drilling process; Or can only receive single kind of power effect situation by simple analog gas drilling drilling tool, and analog gas drilling process drilling tool erosive wear simultaneously with receive laterally, the stressing conditions of the complex working condition of vertical and twisting vibration, also can't test out fatigue lifetime of drilling tool.Therefore the large-scale application of gas drilling technology requires to research and develop a kind of test method of suitable learning gas well drilling tool working mechanism.
Summary of the invention
The present invention seeks to provides a kind of test method of analog gas well drilling tool working mechanism in order to overcome the deficiency of prior art.The present invention's drilling tool erosive wear in the analog gas drilling process simultaneously receives laterally, vertically and complicated force status and Fatigue Cracking Test such as torque vibration, thereby research means is provided for the relevant issues of the multiple drilling tool that run in the gas drilling process.
Technical scheme of the present invention is:
The test method of a kind of analog gas well drilling tool of the present invention working mechanism comprises gas drilling drilling tool erosion resistance tests method, gas drilling drilling tool stress test method and gas well drilling tool Fatigue Cracking Test method.
Said gas drilling drilling tool erosion resistance tests method adopts following steps: 1. will test derrick earlier before the test and be fixed on the concrete pedestal, and weigh up the preceding test section drilling tool weight of test; 2. open the various combination of blower fan, regulate control required blast of test and air quantity, and open blower fan δ 1 constantly when noting on-test; 3. test after a period of time out-of-blastly, note this moment of δ 2 constantly; 4. the test section drilling tool is taken out and weigh again, so just can draw the wear extent of test section drilling tool in the unit interval.
Said gas drilling drilling tool stress test method adopts following steps: 1. open Hydraulic Station, pull out of hole; 2. regulate flow speed control valve and make it to keep a suitable drill speed, regulate the pressure regulator valve handle and change the pressure of the drill, regulating radially, pressue device applies radial force to the test section drilling tool; 3. actuating motor is opened air compressor machine; 4. moment of torsion and drilling speed, the pressure of the drill and the power that radially applies, drill footage are respectively by moment of torsion rotating speed transmitter, and pressure passes transmitter, and the displacement transducer conversion also is sent to remote measurement control display record system demonstration and record.
Said gas drilling drilling tool Fatigue Cracking Test method, adopt following steps: the blower fan of 1. opening various combination carries out gas drilling drilling tool erosion resistance tests; 2. open Hydraulic Station and carry out gas drilling drilling tool stress test, moment δ 3 when writing down electric motor starting;
3. when one single creep into completion after, must earlier the test section drilling tool be lifted away from concrete pedestal, stop to rise, rotation, begin to unload brill, note this moment of δ 4 constantly; Open the opposite opened sleeve pipe and add drilling tool, 2. repeating step arrives step said process 3. and gets final product again.Add sand if desired, the blower fan of various combination is opened from pregnant sent into again; 4. remote measurement control display record system show and record test section drilling tool on different tension, bending stress and shear stress and this threes constantly of same point with the variation that the variation of test period takes place, close motor and the institute dynamo-electric source of blowing in after the off-test.
Before the inventive method is implemented, need earlier the test section drilling tool to be positioned in the sleeve, have or not air leakage phenomena, confirm to make an experiment again after the no air leakage phenomena through valve and each junction of blower fan inspection.
Advantage of the present invention and beneficial effect are: 1, gas is taken in the rock erosion drilling tool in the analog gas drilling process; Can the analog gas well drilling tool receive laterally, vertically and the complicated applied force situation of twisting vibration effect, and test method easily is provided for the relevant issues that run in the gas drilling processes such as learning gas well drilling tool fatigue break inefficacy.2, the advantage of said hydraulic control method is that the hydraulic transmission element volume is little, light weight, and reaction is fast, can realize quick startup, braking and frequent switching-over rapidly, also can realize remote auto control.
Description of drawings
Fig. 1 is the block diagram of the test method of a kind of analog gas well drilling tool of the present invention working mechanism;
Fig. 2 is the synoptic diagram of the used test unit of the present invention;
Fig. 3 is the synoptic diagram of the used Hydraulic Station of the present invention.
Among the figure, 1. concrete pedestal, 2. the test section drilling tool is 3. pregnant, 4. opposite opened sleeve pipe, 5. sleeve pipe, 6. rotating head, 7. derrick; 8. moment of torsion rotating speed transmitter, 9. oil motor, 10. pressure passes transmitter, 11. displacement transducers, 12. oil cylinders, 13. Hydraulic Stations, 14. pressue devices radially; 15. valve, 16. cyclone separators, 17. feed appliances, 18. device for reducing dust, 19. valves, 20. valves, 21. pressure units; 22. flow sensor, 23. valves, 24. big blower fans, 25. little blower fans, 26. valves, 27. flow transmitters, 28. pressure units; 29. air compressor machine, 30. motor, 31. remote measurements control display record system, 32. fuel tanks, 33. filtrators, 34. motors, 35. oil pumps; 36. tensimeter, 37. reversal valves, 38. pressure regulator valves, 39. flow speed control valves, 40. reversal valves, 41. flow speed control valves, 42. safety valve.
Embodiment
Below in conjunction with accompanying drawing practical implementation step of the present invention is described:
Like Fig. 1, Fig. 2, shown in Figure 3, the test method of a kind of analog gas well drilling tool of the present invention working mechanism comprises gas drilling drilling tool erosion resistance tests method, gas drilling drilling tool stress test method and gas well drilling tool Fatigue Cracking Test method.
Said gas drilling drilling tool erosion resistance tests method adopts following steps: 1. will test derrick 7 earlier before the test and be fixed on the concrete pedestal 1, and weigh up preceding test section drilling tool 2 weight of test; 2. open big blower fan 24, the various combination of little blower fan 25 and air compressor machine 29 is through pressure unit 21; Flow sensor 22, pressure unit 28, flow transmitter 27 control required blast of test and air quantity; And open blower fan δ 1 constantly when noting on-test; The sand grains of feed appliance 17 gets into pipeline under wind action to bring test unit bottom into by air pregnant 3, and washout test section drilling tool 2 backs get into cyclone separators 16, after the sand grains deposition again access to plant recycle; 3. test after a period of time out-of-blastly, note this moment of δ 2 constantly; 4. test section drilling tool 2 is taken out and weigh again, so just can draw the wear extent of test section drilling tool 2 in the unit interval.
Said gas drilling drilling tool stress test method, adopt following steps: 1. open Hydraulic Station 13, starter motor 34 is regulated safety valve 42, unscrews pressure regulator valve 38 handles and flow speed control valve 39 handles.Reversal valve 37 handles are pushed away left, and oil cylinder 12 piston rods are to left movement, and (with test section drilling tool 2 some distances that moves up, as long as test section drilling tool 2 lower ends do not touch pregnant 3) pulls out of hole.Oil cylinder 12 is that fuel tank 32 hydraulic oil filter by oil pump 35 supplies through filtrator 33 with oil motor 9 required hydraulic oil, and tensimeter 36 shows the control oil pressure, oil cylinder 12 control the pressure of the drill and drill footages; 2. the handle with reversal valve 40 pushes away to the right, makes oil motor 9 rotations, changes the opening degree of flow speed control valve 41, regulates rotating speed, changes flow speed control valve 39 opening degrees, changes reversal valve 37 handle positions, makes test section drilling tool 2 carry out drilling test downwards.Test section drilling tool 2 is driven by oil motor 9 and control rotary drilling drilling speed; Regulate flow speed control valve 41 and make it to keep a suitable drill speed, regulate pressure regulator valve 38 handles and change the pressure of the drill; Regulating radially, pressue device 14 applies radial force to test section drilling tool 2; 3. actuating motor 30 is opened air compressor machine 29; Air gets into rotating head 6 via pressure unit 28 and flow transmitter 27; Get into test section drilling tool 2 interstitial holes again, air is discharged from test section drilling tool 2 bottoms, turns back to cyclone separator 16 from the annular space between test section drilling tool 2 and the sleeve pipe 5 simultaneously; Discharge via device for reducing dust 18, landwaste is stored in the cyclone separator 16 after being separated by cyclone separator 16 again; 4. moment of torsion and drilling speed, the pressure of the drill and the power that radially applies, drill footage are respectively by moment of torsion rotating speed transmitter 8, and pressure passes transmitter 10, and displacement transducer 11 conversion also are sent to remote measurement control display record system 31 demonstration and records.
Said gas drilling drilling tool Fatigue Cracking Test method, adopt following steps: the blower fan of 1. opening various combination carries out gas drilling drilling tool erosion resistance tests; 2. open Hydraulic Station 13 and carry out gas drilling drilling tool stress test, moment δ 3 when writing down electric motor starting; 3. when one single creep into completion after, must earlier test section drilling tool 2 be lifted away from concrete pedestal 1, in oil cylinder 12 piston rods withdrawal oil cylinder 12, reversal valve (37,40) is moved to meta, stop to rise, rotation, begin to unload brill, note this moment of δ 4 constantly; Open opposite opened sleeve pipe 4 and add drilling tool, 2. repeating step arrives step said process 3. and gets final product again; Add sand if desired, the blower fan of various combination is opened from pregnant 3 sent into again; 4. remote measurement control display record system 31 show and record test section drilling tool 2 on different tension, bending stress and shear stress and this threes constantly of same point with the variation that the variation of test period takes place, close motor 35 and the institute dynamo-electric source of blowing in after the off-test.
Before the inventive method is implemented, need earlier test section drilling tool 2 to be positioned in the sleeve 5, close all valves.Open valve (15,20) starts little blower fan 25, checks that each junction had or not air leakage phenomena when little blower fan 25 moved, and confirms no air leakage phenomena, valve-off 20; Open valve 19 starts big blower fan 24, checks that each junction had or not air leakage phenomena when big blower fan 24 moved, and confirms to make an experiment after the no air leakage phenomena.
Claims (1)
1. the test method of an analog gas well drilling tool working mechanism comprises gas drilling drilling tool erosion resistance tests method, and gas drilling drilling tool stress test method and gas well drilling tool Fatigue Cracking Test method is characterized in that:
Before the enforcement, earlier the test section drilling tool is installed in the sleeve, has or not air leakage phenomena, confirm to make an experiment again after the no air leakage phenomena through valve and each junction of blower fan inspection;
Said gas drilling drilling tool erosion resistance tests method adopts following steps: 1. will test derrick (7) earlier before the test and be fixed on the concrete pedestal (1), and weigh up preceding test section drilling tool (2) weight of test; 2. open the various combination of blower fan; Regulate control required blast of test and air quantity; And open blower fan δ 1 constantly when noting on-test; The sand grains of feed appliance (17) gets into pipeline and brings test unit bottom pregnant (3) into by air under wind action, washout test section drilling tool (2) back gets into cyclone separator (16), after the sand grains deposition again access to plant recycle; 3. test after a period of time out-of-blastly, note this moment of δ 2 constantly; 4. test section drilling tool (2) is taken out and weigh again, so just can draw the wear extent of test section drilling tool (2) in the unit interval;
Said gas drilling drilling tool stress test method adopts following steps: 1. open Hydraulic Station (13), pull out of hole; 2. regulate flow speed control valve (41) and make it to keep a suitable drill speed, regulate pressure regulator valve (38) handle and change the pressure of the drill; Regulating radially, pressue device (14) applies radial force to test section drilling tool (2); 3. actuating motor (30) is opened air compressor machine (29); 4. moment of torsion and drilling speed, the pressure of the drill and the power that radially applies, drill footage are respectively by moment of torsion rotating speed transmitter (8), and pressure passes transmitter (10), and displacement transducer (11) conversion also is sent to remote measurement control display record system (31) demonstration and record;
Said gas drilling drilling tool Fatigue Cracking Test method, adopt following steps: the blower fan of 1. opening various combination carries out gas drilling drilling tool erosion resistance tests; 2. open Hydraulic Station (13) and carry out gas drilling drilling tool stress test, moment δ 3 when writing down electric motor starting; 3. when one single creep into completion after, must earlier test section drilling tool (2) be lifted away from concrete pedestal (1), stop to rise, rotation, begin to unload brill, note this moment of δ 4 constantly; Open opposite opened sleeve pipe (4) and add drilling tool, 2. repeating step arrives step said process 3. and gets final product again; Add sand if desired, the blower fan of various combination is opened from pregnant (3) sent into again; 4. remote measurement control display record system (31) shows and record test section drilling tool (2) is gone up the variation that different tension, bending stress and shear stress and this threes constantly of same point are taken place with the variation of test period.
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| CN201110009874XA CN102175545B (en) | 2011-01-18 | 2011-01-18 | Test method for simulating working mechanism of drilling rig for gas drilling |
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| CN201110009874XA CN102175545B (en) | 2011-01-18 | 2011-01-18 | Test method for simulating working mechanism of drilling rig for gas drilling |
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| CN102175545B true CN102175545B (en) | 2012-10-31 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507172B (en) * | 2011-10-24 | 2013-11-06 | 哈尔滨工业大学 | Device for testing drilling performance of drilling tool for sampling deep layer of planet |
| CN103967428B (en) * | 2014-04-18 | 2016-01-13 | 上海大学 | A kind of evaluation method of drill string fatigue failure risk |
| CN104675382A (en) * | 2015-02-13 | 2015-06-03 | 中国石油集团渤海钻探工程有限公司 | Rock debris return monitoring system and method during gas drilling |
| CN105241773B (en) * | 2015-10-23 | 2017-10-20 | 三峡大学 | A kind of simulation device of current to reservoir stability rock mass souring under sunshine rainfall and slacking |
| CN108645332A (en) * | 2018-05-12 | 2018-10-12 | 哈尔滨工业大学 | A kind of cement base erosive wear sensor with temperature, humidity self-compensating function |
| CN108776075B (en) * | 2018-07-10 | 2021-01-08 | 长江大学 | Testing device and testing method for simulating erosion wear of underground drill rod |
| CN112082754B (en) * | 2019-06-14 | 2022-06-28 | 中国石油化工股份有限公司 | Evaluation experiment device and method for erosion resistance of arrow-shaped drilling tool check valve under condition of simulating gas well drilling tool internal jetting |
| CN112326489B (en) * | 2020-11-03 | 2021-09-03 | 中国地质大学（北京） | Test device and test method for simulating erosion in harsh drilling environment |
| CN114705834B (en) * | 2022-03-31 | 2023-08-18 | 安徽理工大学 | Simulated gas lift reverse circulation slurry suspension deslagging indoor test system and test method thereof |
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| CN201184861Y (en) * | 2007-11-24 | 2009-01-21 | 西南石油大学 | Test device for simulating erosion worn of gas drilling and boring tool |
| CN201635659U (en) * | 2010-04-01 | 2010-11-17 | 西南石油大学 | Gas drilling erosion experimental device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7775099B2 (en) * | 2003-11-20 | 2010-08-17 | Schlumberger Technology Corporation | Downhole tool sensor system and method |
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|---|---|---|---|---|
| CN201184861Y (en) * | 2007-11-24 | 2009-01-21 | 西南石油大学 | Test device for simulating erosion worn of gas drilling and boring tool |
| CN201635659U (en) * | 2010-04-01 | 2010-11-17 | 西南石油大学 | Gas drilling erosion experimental device |
Non-Patent Citations (3)
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| 祝效华 等.气体钻井钻杆冲蚀规律研究.《石油学报》.2010,第31卷(第6期),1013-1017. * |
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