CN109490100B - Drill string friction torque test device - Google Patents
Drill string friction torque test device Download PDFInfo
- Publication number
- CN109490100B CN109490100B CN201811511658.3A CN201811511658A CN109490100B CN 109490100 B CN109490100 B CN 109490100B CN 201811511658 A CN201811511658 A CN 201811511658A CN 109490100 B CN109490100 B CN 109490100B
- Authority
- CN
- China
- Prior art keywords
- drill string
- sensor
- servo motor
- sliding table
- well bore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
- 229920005372 Plexiglas® Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000006399 behavior Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Earth Drilling (AREA)
Abstract
The drill string friction torque test device comprises a drilling pressure loading system, a rotating system, a well simulation system and a detection system; the drilling pressure loading system comprises a first servo motor, wherein the first servo motor is connected with a synchronous belt through a synchronous wheel so as to drive a ball screw to rotate, the ball screw is connected with a sliding table, and the sliding table moves up and down along the ball screw; the rotating system comprises a second servo motor arranged on the slipway, and the second servo motor is connected with the drill string through a coupler so as to enable the drill string to perform rotating motion; the well simulation system comprises a drill string, wherein the bottom of the drill string is connected with one end of a well bore, and the other end of the well bore is connected with a drill bit; the detection system comprises a displacement sensor and a compression force sensor which are arranged on the horizontal section of the drill string, and a dynamic torque sensor and a tension force sensor of the vertical section and the horizontal section of the drill string; the end part of the drill bit is provided with a drillability device; the invention has the characteristics of simple operation and easy realization.
Description
Technical Field
The invention relates to the technical field of oil and natural gas drilling, in particular to a drill string friction torque test device.
Background
The friction torque of the drill string is a main factor influencing the drilling efficiency of a horizontal well and a large-displacement well, and the accurate friction torque is a key for optimizing drilling operation parameters and realizing efficient, rapid and successful drilling. However, the existing friction torque theoretical model has larger difference between the calculated value and the true value due to more assumptions, and the model cannot accurately reflect the mechanical behavior of the drill string. Therefore, experimental research becomes an important way for promoting the continuous perfection of theoretical models and obtaining the real statics, kinematics and dynamic behaviors of the drill string. The existing test device only considers the interaction of the drill string and the shaft in the horizontal well section and ignores the influence of the interaction of the drill string and the shaft in the vertical well section and the bending well section on the mechanical behavior of the drill string, so the existing test research has urgent need for a drill string friction torque test device capable of simulating a complete whole well.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the drill string friction torque test device which can simulate different well structures based on a similar principle by combining statics analysis, kinematic analysis and dynamics analysis.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the drill string friction torque test device comprises a drilling pressure loading system, a rotating system, a well simulation system and a detection system;
the drilling pressure loading system comprises a first servo motor 1, wherein the first servo motor 1 is connected with a synchronous belt 3 through a synchronous wheel 2 so as to drive a ball screw 4 to rotate, a sliding table 5 is connected with a nut on the ball screw 4, and the sliding table 5 moves up and down along with the ball screw 4 along a frame;
the rotating system comprises a second servo motor 8 arranged on the sliding table 5, and the second servo motor 8 is connected with a drill string 11 through a coupler 9 to enable the drill string to perform rotating motion;
the well simulation system comprises a drill string 11, wherein the bottom of the drill string 11 is connected with one end of a shaft 13, and the other end of the shaft 13 is connected with a drill bit 23;
the detection system comprises a displacement sensor 17 and a compression sensor 22 which are arranged on the horizontal section of the drill string 11, a dynamic torque sensor 18 and a tension pressure sensor 20 on the vertical section and the horizontal section of the drill string 11;
the end of the drill bit 23 is provided with drillability means 24.
The well bore 13 is provided with a well bore clamp 12 for adjusting well bore structures with different well angles and azimuth angles, the well bore clamp 12 is arranged on a device frame, the well bore 13 is arranged on a vertical section, a bending section and a horizontal section are fixed through the well bore clamp 12, and the angle and the telescopic length of the well bore clamp 12 are adjusted.
The sliding bearing 6 mounts the sliding table 5 on the frame.
The ball screw 4 is provided with a limit switch 7 for limiting the up-and-down movement of the sliding table 5, and the sliding table 5 is arranged on the frame through a sliding bearing 6.
The coupling 9 is provided with a coupling top plate 10.
The drill string 11 is a PVC pipe, and the well bore 13 is an organic glass pipe.
The model numbers of the servo motor I and the servo motor II are LCMT-15M02-130M10015; the model of the pull pressure sensor 20 is a small S-shaped force transducer U10J; the model number of the dynamic torque sensor 18 is middle voyage CKY-810; the model number of the displacement sensor 17 is Li500P1-Q25LM1-ELIUPN8X3-H1151; the model of the compression force sensor 22 is VC09; the limit switch 7 is TM1307.
The invention has the beneficial effects that:
in the design, the drill string can simulate different conditions in a vertical section, a bending section and a horizontal section, and a brand new drill string friction torque test device is designed; according to the design, the shaft is adjusted through the shaft clamp, so that the simulation of the well structure of different well angles, azimuth angles and continuous well depths can be realized; simulating parameters such as different bit weights, rotating speeds and the like by adjusting the servo motor, and analyzing the dynamic behavior of the drill string; the drilling parameters such as drill string torque, rotating speed, displacement and the like obtained in the test process can be obtained in real time by utilizing the data acquired by the sensor, so that analysis and calculation of drill string friction torque are facilitated.
Drawings
Fig. 1 is a block diagram of the structure of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the drill string friction torque test device comprises a drilling pressure loading system, a rotating system, a well simulation system and a detection system which form an organic whole.
The drilling pressure loading system consists of a servo motor 1, three synchronous wheels 2, a synchronous belt 3, two ball screws 4, a sliding table 5, a sliding bearing 6, a limit switch 7 and the like. The servo motor 1 is connected with the synchronous belt 3 through the synchronous wheel 2 so as to drive the ball screw 4 to rotate, so that the sliding table 5 connected with the nut on the ball screw 4 moves up and down, and an axial force is applied to the drill string system; the limit switch 7 plays a role of a protection device by limiting the upward or downward movement position of the sliding table 5; the sliding table 5 is arranged on the frame through the sliding bearing 6, so that friction between the sliding table 5 and the frame in the up-and-down movement process is reduced. By adjusting the servo motor 1, the drilling pressure factors in the drilling process can be simulated, different drilling pressures are applied to the drill string test device, and the influence of the drilling pressure on the dynamic state of the drill string is detected.
The rotating system consists of a servo motor 8, a coupler 9, a coupler top plate 10 and a drill string 11. The servo motor 8 is connected with a drill string 11 through a coupler 9 to enable the drill string to perform rotary motion; the shaft coupling 9 and the shaft coupling top plate 10 play a role in buffering a drilling pressure system, when drilling test is carried out, under the condition of large axial force, the axial force born by the servo motor 8 is transmitted to the shaft coupling top plate 10 after being buffered by the shaft coupling 9, so that buffering and transferring of the axial force are realized, and the safety of the servo motor 8 and a test device is protected. The torque and rotational speed can be increased or decreased by adjusting the servo motor 8 to rotate the drill string 11, thereby simulating the rotational speed and torque applied to the drill string during drilling. By applying different rotational speeds to the drill string test device, the effect of rotational speed on the drill string movement state can be studied.
Well bore simulation systems are the primary systems of drill string test equipment that can be used to observe the movement of the drill string in the wellbore and adjust the well bore configuration. The bottom hole assembly system is comprised of a drill string 11, a wellbore clamp 12, a wellbore 13, a wellbore connector 14, and the like. The drill string 11 is simulated by a PVC pipe, and the shaft 13 is simulated by an organic glass pipe, so that the movement condition of the drill string can be effectively observed; the shaft 13 is subjected to rough treatment, so that the well walls with different roughness can be effectively simulated, and the friction between a drill string and the well walls is realized. By adjusting the angle and telescoping distance of the wellbore clamp 12, wellbore configurations of different well inclination and azimuth angles are achieved.
The detection system consists of a displacement sensor 17, a dynamic torque sensor 18, a computer 19, a tension pressure sensor 20, a signal acquisition module 21 and a compression force sensor 22. The displacement sensor 17 is arranged on the horizontal section of the drill string 11 and is used for detecting the displacement of the drill string; the dynamic torque sensor 18 is placed at the vertical section and the horizontal section of the drill string and is used for detecting the rotating speed and the torque of the drill string 11; a compression force sensor 22 for detecting a contact force generated by the drill string 11 and the wellbore 13 when a drilling test is performed; the pull pressure sensor 20 is mounted in the vertical and horizontal sections of the drill string 11. As the drill string 11 drills, the force generated by the action of the drill bit 23 with the bottom rock drillability device 24 is transmitted through the drill string 11 to the pull pressure sensor 20, thereby measuring the pull pressure experienced by the drill string 11. Advantageously, the pull pressure sensor is used to detect axial forces experienced by the drill string.
The type of the servo motor is LCMT-15M02-130M10015; the model of the pull pressure sensor is a small S-shaped force transducer U10J; the model of the dynamic torque sensor is middle voyage CKY-810; the model number of the displacement sensor 17 is Li500P1-Q25LM1-ELIUPN8X3-H1151; the model of the compression force sensor 22 is VC09; the limit switch model is TM1307.
The working principle of the invention is as follows:
the utility model provides a drill string friction torque test device, including making the drill string 11 carry out the servo motor 1 of lifting, the motion of transferring down, thereby servo motor 1 passes through the hold-in range 3 of synchronizing wheel 2 connection drives ball 4 rotation, thereby the nut can drive slip table 5 and reciprocate on the ball 4, apply axial force for the drill string system, install servo motor 8 on the slip table 5, servo motor 8 provides the moment for drill string 11, drill string 11 and shaft coupling 9 fixed connection, when carrying out the drilling test, the effort that drill bit 23 produced with the rock is passed through drill string 11 and is acted on the shaft coupling roof 10 to shaft coupling 9, thereby the harm that the elastic shaft coupling roof 10 produced the impact force to servo motor 8 in order to reduce the device in the drilling process is led to, drill string 11 is installed in pit shaft 13, pit shaft 13 is connected through pit shaft connector 14, installs on the drill string 11, and draws pressure sensor 20, displacement sensor 17, dynamic torque sensor 18, install compression sensor 22 on pit shaft 13 and thereby survey 11 atress motor through drill string 11 and pit shaft 13 collision, thereby the effort that drill bit 23 produced with rock through servo motor 1 and 8 provides the power that the bottom of hole 24 is provided.
The shaft clamp 12 is arranged on a device frame, the shaft 13 is arranged on a vertical section, a bending section and a horizontal section are fixed through the shaft clamp 12, and different well angles and azimuth drilling can be realized by adjusting the curvature and the direction of the bending section of the shaft 13 through adjusting the angle and the telescopic length of the shaft clamp 12.
The sliding bearing 6 is used for installing the sliding table 5 on the frame, so that friction between the sliding table 5 and the frame in the up-and-down movement process can be reduced. In the upward or downward movement process of the sliding table 5, a limit switch 7 is arranged on the frame to prevent the sliding table 5 from continuing to move upward or downward and damaging the device.
The pull pressure sensor 20 is mounted in the vertical and horizontal sections of the drill string 11. As the drill string 11 drills, the force generated by the action of the drill bit 23 with the bottom rock drillability device 24 is transmitted through the drill string 11 to the pull pressure sensor 20, thereby measuring the pull pressure experienced by the drill string 11.
Claims (4)
1. The drill string friction torque test device is characterized by comprising a drilling pressure loading system, a rotating system, a well body simulation system and a detection system;
the drilling pressure loading system comprises a first servo motor (1), wherein the first servo motor (1) is connected with a synchronous belt (3) through a synchronous wheel (2) so as to drive a ball screw (4) to rotate, a sliding table (5) is connected with a nut on the ball screw (4), and the sliding table (5) moves up and down along with the ball screw (4) along a rack;
the rotating system comprises a second servo motor (8) arranged on the sliding table (5), and the second servo motor (8) is connected with the drill string (11) through a coupler (9) to enable the drill string to perform rotating motion;
the well simulation system comprises a drill string (11), wherein the bottom of the drill string (11) is connected with one end of a shaft (13), and the other end of the shaft (13) is connected with a drill bit (23);
the detection system comprises a displacement sensor (17) and a compression sensor (22) which are arranged on the horizontal section of the drill string (11), a dynamic torque sensor (18) and a tension pressure sensor (20) of the vertical section and the horizontal section of the drill string (11);
the end part of the drill bit (23) is provided with a drillability device (24);
the displacement sensor (17) is arranged on the horizontal section of the drill string (11) and is used for detecting the displacement of the drill string; the dynamic torque sensor (18) is arranged on the vertical section and the horizontal section of the drill string and is used for detecting the rotating speed and the torque of the drill string (11); a compression force sensor (22) for detecting a contact force generated by the drill string (11) and the wellbore (13) when performing a drilling test; the pulling pressure sensor (20) is arranged on the vertical section and the horizontal section of the drill string (11); when the drill string (11) drills, the force generated by the action of the drill bit (23) and the bottom rock drillability device (24) is transmitted to the tension pressure sensor (20) through the drill string (11), so that the tension pressure born by the drill string (11) is measured, and the tension pressure sensor is used for detecting the axial force born by the drill string;
the well bore (13) is provided with a well bore clamp (12) for adjusting well bore structures with different well angles and azimuth angles, the well bore clamp (12) is arranged on a device frame, the well bore (13) is arranged in a vertical section, and a bending section and a horizontal section are fixed through the well bore clamp (12);
the ball screw (4) is provided with a limit switch (7) for limiting the sliding table (5) to move up and down, and the sliding table (5) is arranged on the frame through a sliding bearing (6).
2. The drill string friction torque test device according to claim 1, wherein the coupling (9) is provided with a coupling top plate (10).
3. The drill string friction torque test device according to claim 1, wherein the drill string (11) is a PVC pipe and the wellbore (13) is a plexiglass pipe.
4. The drill string friction torque test device according to claim 1, wherein the first servo motor (1) and the second servo motor (8) are LCMT-15M02-130M10015; the model of the pull pressure sensor (20) is a small S-shaped force transducer U10J; the model of the dynamic torque sensor (18) is middle-navigation CKY-810; the model of the displacement sensor (17) is Li500P1-Q25LM1-ELIUPN8X3-H1151; the model of the compression force sensor (22) is VC09; the limit switch (7) is of the model TM1307.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511658.3A CN109490100B (en) | 2018-12-11 | 2018-12-11 | Drill string friction torque test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511658.3A CN109490100B (en) | 2018-12-11 | 2018-12-11 | Drill string friction torque test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109490100A CN109490100A (en) | 2019-03-19 |
| CN109490100B true CN109490100B (en) | 2023-12-19 |
Family
ID=65709851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811511658.3A Active CN109490100B (en) | 2018-12-11 | 2018-12-11 | Drill string friction torque test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109490100B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964880A (en) * | 2019-06-24 | 2020-11-20 | 中国石油大学(华东) | Simulation test device and test method for motion state of bottom drilling tool assembly |
| CN111594144A (en) * | 2020-05-19 | 2020-08-28 | 德州联合石油科技股份有限公司 | Screw drill tool, vertical drilling tool test method and simulated well deviation test equipment |
| CN112033658B (en) * | 2020-09-03 | 2022-05-27 | 西南石油大学 | System and method for testing supporting mechanism of drilling traction robot |
| CN112014093B (en) * | 2020-09-03 | 2022-04-22 | 西南石油大学 | System and method for testing friction block of drilling robot |
| CN112412337B (en) * | 2020-11-30 | 2022-11-01 | 中国海洋石油集团有限公司 | Sliding guide drilling tool face angle change experiment system and using method thereof |
| CN113008534A (en) * | 2021-01-29 | 2021-06-22 | 王为 | Simulation experiment device for friction resistance of large-inclination drilling |
| CN114199605B (en) * | 2022-02-18 | 2022-05-10 | 西南石油大学 | Horizontal drill string system dynamics simulation test bed and test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203547713U (en) * | 2013-10-29 | 2014-04-16 | 中国石油集团渤海钻探工程有限公司 | Pipe column vibration friction and resistance reducing experiment device |
| CN104297049A (en) * | 2014-11-10 | 2015-01-21 | 西南石油大学 | Shale crushing experimental device capable of considering drill string dynamic vibration and experimental method |
| CN105701299A (en) * | 2016-01-15 | 2016-06-22 | 西南石油大学 | Dynamic frictional resistance torque calculating method |
| CN107449596A (en) * | 2017-08-06 | 2017-12-08 | 西南石油大学 | Hole deviation and the vertical Ratio Experiments stand more large-scale than adjustable rotary drilling of water |
| CN209589718U (en) * | 2018-12-11 | 2019-11-05 | 西安石油大学 | A kind of drill string drag and torque test and experiment device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9404307B2 (en) * | 2014-06-02 | 2016-08-02 | Schlumberger Technology Corporation | Method and system for directional drilling |
| US10078026B2 (en) * | 2015-12-31 | 2018-09-18 | Michael Vinogradov-Nurenberg | Multi-component force-torque sensing device with reduced cross-talk for twist-compression testing machine |
-
2018
- 2018-12-11 CN CN201811511658.3A patent/CN109490100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203547713U (en) * | 2013-10-29 | 2014-04-16 | 中国石油集团渤海钻探工程有限公司 | Pipe column vibration friction and resistance reducing experiment device |
| CN104297049A (en) * | 2014-11-10 | 2015-01-21 | 西南石油大学 | Shale crushing experimental device capable of considering drill string dynamic vibration and experimental method |
| CN105701299A (en) * | 2016-01-15 | 2016-06-22 | 西南石油大学 | Dynamic frictional resistance torque calculating method |
| CN107449596A (en) * | 2017-08-06 | 2017-12-08 | 西南石油大学 | Hole deviation and the vertical Ratio Experiments stand more large-scale than adjustable rotary drilling of water |
| CN209589718U (en) * | 2018-12-11 | 2019-11-05 | 西安石油大学 | A kind of drill string drag and torque test and experiment device |
Non-Patent Citations (1)
| Title |
|---|
| 水平井钻井过程中井底钻压预测及应用;吴泽兵;郭龙龙;潘玉杰;;石油钻采工艺(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109490100A (en) | 2019-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109490100B (en) | Drill string friction torque test device | |
| US7650962B2 (en) | Rotary actuated seismic source and methods for continuous direct-push downhole seismic testing | |
| CN102564903B (en) | Test device for testing flow characteristics of liquefied sand and test method | |
| CN105259017B (en) | A kind of deepwater drilling soft suspension marine riser keeps away platform mechanical behavior pilot system and its test method | |
| CN105136598A (en) | Test device and test method for simulating wear between deepwater drilling well marine riser and drill string | |
| CN105952437B (en) | Indoor experimental research device for friction resistance torque of tubular column in three-dimensional bending well | |
| CN105004506A (en) | Self-elevating type offshore platform pile leg wave-current load coefficient test experimental system | |
| CN107063723A (en) | A kind of Vertical Axis Road-header cut simulation experiment system | |
| CN108918063B (en) | Drilling vibration measurement and control experiment bench | |
| CN103206202B (en) | A kind of deep-sea tube-in-tube mechanics transmission characteristic analysis design mothod device | |
| CN205317496U (en) | Simulation tunnel passes through active fault's displacement synchro control device | |
| CN114232581A (en) | Seabed type chain clamping driving continuous penetration static sounding device | |
| CN103091082A (en) | Full drill rock breaking test system and test method thereof | |
| CN209589718U (en) | A kind of drill string drag and torque test and experiment device | |
| CN103105289A (en) | Test system of full gauge drilling bit rock breaking | |
| CN202991008U (en) | Dynamometric device for simulating mechanical characteristic of bottom-hole assembly | |
| CN103615210B (en) | A kind of Fibre Optical Sensor is with brill downhole device | |
| CN103105290A (en) | Test method of rock breaking with full gauge drilling bit | |
| CN104535738A (en) | Centrifugal model test lateral static force loading device and testing method | |
| CN202649077U (en) | Test device for testing liquefied sandy soil apparent viscosity | |
| CN110736596A (en) | portable excitation system for simulating rail operation | |
| CN106840627B (en) | Oil/gas well tubing string antifriction drop turns round tool performance experimental rig | |
| CN206593882U (en) | A kind of Vertical Axis Road-header cut simulation experiment system | |
| CN203394513U (en) | Pressure-control damping waterpower pushing device | |
| CN206329273U (en) | A kind of slide drilling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |