CN115691239A - Multimedia system for oil and gas drilling tripping demonstration - Google Patents
Multimedia system for oil and gas drilling tripping demonstration Download PDFInfo
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- CN115691239A CN115691239A CN202211418470.0A CN202211418470A CN115691239A CN 115691239 A CN115691239 A CN 115691239A CN 202211418470 A CN202211418470 A CN 202211418470A CN 115691239 A CN115691239 A CN 115691239A
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Abstract
The invention discloses a multimedia system for demonstrating tripping of an oil and gas drilling well, which comprises a cylinder, a pipe string, a first protruding part, a second protruding part, a pull rope connected with the pipe string and a power device for retracting the pull rope, wherein the first protruding part is positioned at the bottom end of the pipe string, the second protruding part is positioned above the first protruding part, the outer diameter of the first protruding part is equal to the inner diameter of the pipe string, and the outer diameter of the second protruding part is smaller than the inner diameter of the pipe string; the device also comprises a tension sensor and a pressure sensor; the tension sensor is used for monitoring the tension of the pull rope, and the pressure sensors are positioned on the bottom surface of the first protruding part, the top surface of the first protruding part, the side surface of the top surface of the first protruding part, the bottom surface of the second protruding part and the top surface of the second protruding part; the device also comprises a multimedia display device in signal connection with the tension sensor and the pressure sensor. The method is used for solving the problem that no teaching equipment capable of demonstrating the drilling tool tripping and blocking processes exists in the prior art, and the purposes of simulating and teaching demonstration of various tripping and blocking processes of a vertical well are achieved.
Description
Technical Field
The invention relates to the technical field of oil and gas drilling, in particular to a multimedia system for demonstrating tripping in and out of an oil and gas drilling well.
Background
Tripping is one of the common operations in oil and gas drilling construction. The tripping is a general term of tripping and tripping, wherein the tripping is a process of lifting the drilling tool from the bottom to the bottom of the well, and the tripping is a process of placing the drilling tool from the top to the bottom of the well. The conventional tripping operation adopts a pump-free mode, namely tripping by directly utilizing gravity tripping and lifting systems such as drilling traveling block and the like, the pump is started to perform reaming or back reaming operation when the tripping is blocked, and the back reaming operation also has tripping risk for a rotary disc drilling system using non-top drive. Therefore, the mechanical research on the resistance or jamming of the pump-free tripping operation is of great significance to engineering practice and classroom teaching.
For a vertical well, the risk of being affected by differential pressure drill sticking is small, so the blockage or blockage of the drilling tool in the tripping process generally occurs at the drill bit and the centralizer, the blockage type has various possibilities, and no simple experimental device special for simulating and demonstrating the blockage of the drilling tool exists in the prior art.
Disclosure of Invention
The invention provides a multimedia system for demonstrating tripping operation of oil and gas drilling, which aims to solve the problem that no teaching equipment capable of demonstrating the tripping and blocking processes of a drilling tool exists in the prior art and realize the purposes of simulating and teaching demonstration of various tripping and blocking processes of a vertical well.
The invention is realized by the following technical scheme:
the multimedia system for demonstrating the tripping of the oil-gas drilling comprises a barrel body for simulating a shaft, a pipe string positioned in the barrel body, a first protruding part and a second protruding part which are connected to the pipe string, a pull rope connected with the pipe string and a power device for retracting the pull rope, wherein the first protruding part is positioned at the bottom end of the pipe string, the second protruding part is positioned above the first protruding part, the outer diameter of the first protruding part is equal to the inner diameter of the pipe string, and the outer diameter of the second protruding part is smaller than the inner diameter of the pipe string;
the device also comprises a tension sensor and a pressure sensor; the tension sensor is used for monitoring the tension of the pull rope, and the pressure sensors are positioned on the bottom surface of the first protrusion part, the top surface of the first protrusion part, the side surface of the top surface of the first protrusion part, the bottom surface of the second protrusion part and the top surface of the second protrusion part;
the device also comprises a multimedia display device which is in signal connection with the tension sensor and the pressure sensor.
Aiming at the problem that no teaching equipment capable of demonstrating the drilling tool tripping and blocking processes exists in the prior art, the invention provides a multimedia system for demonstrating the drilling tool tripping in an oil and gas drilling manner, wherein a cylinder body is used for simulating a drilling shaft, a pipe string is used for simulating a drilling tool, and the pipe string is provided with a first protruding part and a second protruding part, so that the outer diameter of the first protruding part is equal to the inner diameter of the pipe string, the outer diameter of the second protruding part is smaller than the inner diameter of the pipe string, and a drill bit and a centralizer are simulated by the first protruding part and a centralizer is simulated by the second protruding part. The pull rope and the power device are used for simulating a lifting system of the drilling tool. This application passes through tension sensor monitoring stay cord pulling force, and the load change is colluded greatly in simulation through the pulling force change to this comes the reaction to meet the whole condition of hindering or meeting the card. The specific stress condition of each of the first projection and the second projection when encountering different types of jamming is reflected by a plurality of pressure sensors. The pressure sensors on the second protruding part are positioned on the top surface and the bottom surface to reflect the interaction relation between the centralizer and the blocking part, and the pressure sensors on the first protruding part are positioned on the top surface, the bottom surface and the side surface to reflect the interaction relation between the drill bit and the blocking part and the interaction relation between the drill bit and the well wall/stratum.
Specific methods of use herein include, but are not limited to: according to different simulated drilling-out or drilling-down processes, the pipe string is placed at the bottom of the barrel or lifted out of the barrel in advance, then a required blocking type is set on the inner wall of the barrel, then fluid for simulating drilling fluid is injected into the barrel, and then the pipe string moves upwards or downwards in the barrel through the power device and the pull rope. Signals of the tension sensor and the pressure sensors are transmitted to the multimedia display device for displaying, so that when a common drill jamming type is encountered in the vertical well tripping and descending processes, load change in the process of passing through the jamming point and detailed stress change conditions of the common jamming point can be clearly displayed on the display device, a more visual and clear display process is further provided for teaching of petroleum engineering and the like, and students can fully understand the phenomenon, the process and the mechanism of jamming of a drilling tool; in addition, even the simulation experiment data of a large number of tripping resistive cards can be provided through the method, so that more bases are provided for analyzing the cause and the solution of the tripping resistive cards in actual engineering.
Further, the cylinder comprises a rigid inner pipe and a flexible inner pipe which are distributed up and down, and a rigid outer pipe positioned outside the first rigid inner pipe and a flexible outer pipe positioned outside the flexible inner pipe; annular spaces with closed bottoms are formed between the rigid inner pipe and the rigid outer pipe and between the flexible inner pipe and the flexible outer pipe; and a vertically through flow channel is formed in the first protruding part.
The scheme is that the cylinder body is arranged into an inner-outer double-layer structure, wherein the upper part of the inner layer is a rigid inner pipe which is made of rigid materials as the name suggests and is used for simulating a casing section which is well-cemented in a well body structure, and generally, a drilling tool is considered to belong to a safe well section in the casing section; the lower part of the inner layer is a flexible inner pipe which is made of flexible materials as the name implies and is used for simulating an open hole section which is not well-fixed in a well structure. The inner and outer annular spaces are filled with clay or other plastic materials to simulate the stratum during working. The flexible outer pipe and the flexible inner pipe can be integrally deformed, so that a worker can push the flexible outer pipe, the flexible inner pipe and a plastic material in the flexible outer pipe inwards to extrude the flexible outer pipe, the flexible inner pipe and the plastic material, and different types of shaft blocking and clamping point positions, such as a key groove, a necking down, a step and the like, are molded according to needs. And the annular space between the rigid outer pipe and the rigid inner pipe is stable, so that the extruded plastic material can escape upwards to enter a space with stable well wall. In addition, the flow passage is used for the fluid of the simulated drilling fluid to pass through.
Further, a third protruding part is arranged at the top of the pipe string, and the outer diameter of the third protruding part is equal to the inner diameter of the rigid inner pipe. In order to avoid the phenomenon that the whole pipe string is deviated and is inconsistent with a real stratum when the pipe string passes through a blocking point position artificially simulated in the working process of the pipe string, the first protruding part or the second protruding part is pushed in the opposite direction, the third protruding part is arranged at the top of the pipe string, and the third protruding part is positioned in the rigid inner pipe in the normal use process, so that the rigid inner pipe is used for transversely limiting the third protruding part, and the aim of avoiding the whole deviation of the pipe string is fulfilled.
Furthermore, the flexible pipe joint further comprises a bottom plate, and the bottom ends of the flexible inner pipe and the flexible outer pipe are hermetically connected with the bottom plate. The bottom plate can be used for plugging and sealing the bottom ends of the flexible inner pipe and the flexible outer pipe. Of course, the bottom plate, the rigid outer tube and the rigid inner tube can be directly and relatively fixed in any existing mode, and the specific connection mode is not described in detail herein.
Further, the flexible outer pipe comprises a rigid cladding piece matched with the flexible outer pipe, and the rigid cladding piece is used for cladding the outer side of the flexible outer pipe; the top end of the rigid cladding piece is detachably connected with the rigid outer pipe, and the bottom end of the rigid cladding piece is detachably connected with the bottom plate.
At the in-process to filling plasticity materials such as clay in the annular space, in order to avoid the flexible outer tube of clay extrusion to make its outwards warp, this scheme specially sets up the rigidity cladding piece for at the outside rigidity that provides of flexible outer tube when filling plasticity materials such as clay support, avoid it to warp to the outside. The rigid cladding part is matched with the flexible outer pipe, namely the shape and the size of the inner wall of the rigid cladding part can be matched with those of the outer wall of the flexible outer pipe in a naturally drooping state. In addition, the top end and the bottom end of the rigid cladding part are detachably connected with the rigid outer pipe and the bottom plate respectively, so that the rigid cladding part is convenient to temporarily mount and use. Of course, the specific detachable connection mode is not limited herein, and any detachable connection mode that can be realized by a person skilled in the art can be adopted, and only the temporary connection of the upper end and the lower end of the rigid cladding element is needed.
Further, the rigid cladding piece comprises a plurality of arc-shaped plates, wherein first buckles are arranged at two ends of the top of each arc-shaped plate, and first clamping blocks are arranged at two ends of the bottom of each arc-shaped plate; the first buckle is used for being clamped with a second buckle on the outer wall of the rigid outer pipe; the first clamping block is used for being inserted into the slot on the bottom plate.
The rigid cladding is most preferably capable of being completely clad outside the flexible outer tube. Therefore, the scheme sets the rigid newspaper and the newspaper into the plurality of arc-shaped plates, and the plurality of arc-shaped plates are sequentially spliced to form the whole annular sleeve structure, so that the flexible outer pipe is completely coated. In addition, this scheme sets up a plurality of second buckles at the outer wall of rigidity outer tube, sets up a plurality of slots on the bottom plate, and to every arc, the first buckle at its top of accessible and second buckle cooperation joint are connected in order to realize being connected with dismantling of rigidity outer tube, and the first fixture block of passing through bottom inserts in order to realize being connected with dismantling of bottom plate in the slot on the same reason. It should be noted that the second buckle of the outer wall of the rigid outer pipe and the slots on the bottom plate are required to be corresponding to the plurality of arc-shaped plates, so that stable temporary connection of each arc-shaped plate can be realized, and meanwhile, all the arc-shaped plates can be spliced into a whole annular sleeve.
Further, the flexible outer pipe comprises an arc-shaped bracket matched with the flexible outer pipe, an eccentric wheel arranged on the arc-shaped bracket and a first driving device used for driving the eccentric wheel to rotate; the arc-shaped support is matched on the guide rail in a sliding mode along the longitudinal direction, the top end of the guide rail is detachably connected with the rigid outer pipe, and the bottom end of the guide rail is detachably connected with the bottom plate; the second driving device is used for driving the arc-shaped bracket to slide on the guide rail.
In order to reduce the workload and the inaccuracy that the manual driving flexible outer pipe sets up the blocking point position, the scheme also sets up a mechanism capable of automatically pushing the flexible outer pipe inwards. The arc-shaped support is matched with the flexible outer pipe, and the shape and the size of the inner wall of the arc-shaped support can be matched with the shape and the size of the outer wall of the flexible outer pipe in a natural sagging state. The arc-shaped support can be vertically lifted on the outer wall of the flexible outer pipe along the guide rail, and then an eccentric wheel assembled on the arc-shaped support is driven to lift. Through the rotation of first drive arrangement drive eccentric wheel, the form of accessible adjustment eccentric wheel to the extrusion degree of adjustment eccentric wheel to flexible outer tube, and then multiple types of card point location that hinders such as keyway, necking down, step that obtain the different degree of depth as required shows simulation effect and the precision that improves this application and hinder the card to tripping.
In addition, the first driving device can drive the eccentric wheel to rotate, and the arc-shaped bracket of the second driving device can be driven to lift by adopting the prior art.
Furthermore, the number of the guide rails is two, and two ends of the arc-shaped support are respectively in sliding fit with the two guide rails; the top of the guide rail is provided with a third buckle, the bottom of the guide rail is provided with a second clamping block, and the third buckle is used for being clamped with the second buckle on the outer wall of the rigid outer pipe; the second fixture block is used for being inserted into the slot on the bottom plate.
This scheme sets up the third buckle at the outer wall of rigidity outer tube, sets up the slot on the bottom plate, and to the arc support, the third buckle at its top of accessible and second buckle cooperation joint are connected in order realizing dismantling with the rigidity outer tube, and the second fixture block of the accessible bottom inserts in order realizing being connected with dismantling of bottom plate in the slot on the same reason.
It should be noted that, the arc-shaped support is installed and used after the arc-shaped plate finishes working, so that the arc-shaped support and the arc-shaped plate can share the second buckle and the clamping groove, and interference can not be generated between the arc-shaped support and the arc-shaped plate.
Furthermore, the annular pressure plate matched with the annular space is further included, and the annular pressure plate is connected through a connecting rod. After filling materials such as clay into the annular space, the texture between the flexible inner pipe and the flexible outer pipe is loose, so that the simulation effect on the stratum is limited, and the first bulge and the second bulge can easily pass through the simulated blocking point positions. In order to overcome this problem, this scheme still sets up annular pressure plate, before demonstration experiment at every turn, stretches into the annular space from the top with annular pressure plate in, its lift of rethread drive connecting rod drive to compress tightly the plasticity materials such as the clay in the annular space, show to improve its compactness, thereby realize the more accurate simulation to the wall of a well stratum. Certainly, the driving of the connecting rod in the scheme can be realized by manpower or electric power and other modes.
Furthermore, the connecting rod comprises a plurality of electric telescopic rods which are uniformly distributed in an annular mode, and the electric telescopic rods are installed above the pipe string. This scheme passes through electric telescopic handle and realizes the drive to annular pressure plate, not only can effectively alleviate manpower work load, can also be more accurate realization to the control of compaction degree and fine and close degree. Of course, the electric telescopic rod can be installed and fixed above the pipe string in any mode, the electric telescopic rod and the pipe string can be relatively fixed or independently arranged, and the specific arrangement mode of the electric telescopic rod is irrelevant to the technical effect of the scheme.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the multimedia system for the oil and gas drilling tripping demonstration can clearly show the load change in the process of passing through the blocking point and the detailed stress change condition of the common blocking point on the display device, further provides a more visual and clear showing process for the teaching of petroleum engineering and the like, and is beneficial to fully understanding the phenomenon, the process and the mechanism of the blocking of the drilling tool by students; and a large amount of simulation experiment data of tripping the drill resistance card can be provided, so that more reference bases are provided for analyzing the cause of the drill resistance card and researching the solution of the drill resistance card in actual engineering.
2. The invention is used for a multimedia system for demonstrating tripping of oil and gas drilling, and different types of shaft blocking point positions, such as key grooves, necking necks, steps and the like, can be molded according to requirements. And the annular space between the rigid outer pipe and the rigid inner pipe is stable, so that the extruded plastic material can escape upwards to enter a space with stable well wall.
3. The multimedia system for the oil and gas drilling tripping demonstration can provide rigid support outside the flexible outer pipe when filling clay and other plastic materials, so as to avoid outward deformation.
4. The multimedia system for demonstrating tripping of the oil-gas drilling well is used for obtaining various types of blocking point positions such as key grooves, necking necks and steps at different depths according to requirements by adjusting the extrusion degree of the eccentric wheel to the flexible outer pipe, so that the simulation effect and the simulation precision of tripping of the drilling tool are remarkably improved.
5. The multimedia system for the oil and gas drilling tripping demonstration can compact the clay and other plastic materials in the annulus and obviously improve the compactness, thereby realizing more accurate simulation of the well wall stratum.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is a bottom schematic view of a rigid outer tube in an embodiment of the invention;
FIG. 3 is a schematic view of an arcuate plate in accordance with an exemplary embodiment of the present invention;
FIG. 4 is a schematic structural view of an arcuate bracket according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of an embodiment of the present invention;
FIG. 6 is a schematic diagram of an annular pressure plate in an embodiment of the present invention.
Reference numbers and corresponding part names in the drawings:
1-tube string, 2-first protrusion, 3-second protrusion, 4-pull rope, 5-power device, 6-pressure sensor, 7-multimedia display device, 8-rigid inner tube, 9-flexible inner tube, 10-rigid outer tube, 11-flexible outer tube, 12-annular space, 13-third protrusion, 14-bottom plate, 15-flow channel, 16-arc plate, 17-first buckle, 18-first block, 19-second buckle, 20-slot, 21-arc support, 22-eccentric wheel, 23-guide rail, 24-second driving device, 25-second block, 26-annular pressing plate, 27-connecting rod, 28-third buckle, and 29-top plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limiting the present invention. In the description of the present application, it is to be understood that the terms "front", "back", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the scope of the present application.
Example 1:
the multimedia system for the oil and gas drilling tripping demonstration as shown in fig. 1 comprises a barrel for simulating a shaft, a pipe string 1 positioned in the barrel, a first bulge part 2 and a second bulge part 3 connected to the pipe string 1, a pull rope 4 connected with the pipe string 1, and a power device 5 for winding and unwinding the pull rope 4, wherein the first bulge part 2 is positioned at the bottom end of the pipe string 1, the second bulge part 3 is positioned above the first bulge part 2, the outer diameter of the first bulge part 2 is equal to the inner diameter of the pipe string 1, and the outer diameter of the second bulge part 3 is smaller than the inner diameter of the pipe string 1;
the device also comprises a tension sensor and a pressure sensor 6; the tension sensor is used for monitoring the tension of the pull rope 4, and the pressure sensors 6 are positioned on the bottom surface of the first bulge 2, the top surface of the first bulge 2, the side surface of the top surface of the first bulge 2, the bottom surface of the second bulge 3 and the top surface of the second bulge 3; and the multimedia display device 7 is in signal connection with the tension sensor and the pressure sensor 6.
Among them, the multimedia display device 7 may use a notebook computer, a television screen, or a projector; which shows the measured data of the tension sensor, as well as of the individual pressure sensors 6, preferably in the form of a graph/line graph.
In a more preferred embodiment, an audio/optical/electrical display system may be provided, and when the real-time data of a certain sensor exceeds a set threshold, a corresponding audio/optical/electrical resistive card prompt is performed.
Example 2:
on the basis of embodiment 1, as shown in fig. 1 and fig. 2, the cylinder body comprises a rigid inner pipe 8 and a flexible inner pipe 9 which are distributed up and down, and a rigid outer pipe 10 positioned outside the first rigid inner pipe 8 and a flexible outer pipe 11 positioned outside the flexible inner pipe 9; an annular space 12 with a closed bottom is formed between the rigid inner pipe 8 and the rigid outer pipe 10 and between the flexible inner pipe 9 and the flexible outer pipe 11; the first protruding part 2 is provided with a flow passage 15 which is communicated up and down.
And a third bulge 13 is arranged at the top of the pipe string 1, and the outer diameter of the third bulge 13 is equal to the inner diameter of the rigid inner pipe 8. The flexible pipe is characterized by further comprising a bottom plate 14, and the bottom ends of the flexible inner pipe 9 and the flexible outer pipe 11 are hermetically connected with the bottom plate 14.
Preferably, the rigid inner tube 8 and the rigid outer tube 10 can be made of hard transparent material, such as glass, acrylic, etc. The flexible inner tube 9 and the flexible outer tube 11 can be made of rubber materials or plastic materials with better plasticity.
Example 3:
the multimedia system for the oil and gas drilling tripping demonstration further comprises a rigid cladding matched with the flexible outer pipe 11 on the basis of the embodiment 1 or the embodiment 2, wherein the rigid cladding is used for cladding the outer side of the flexible outer pipe 11; the top end of the rigid cladding is detachably connected with the rigid outer tube 10, and the bottom end of the rigid cladding is detachably connected with the bottom plate 14.
As shown in fig. 3, the rigid cladding member includes a plurality of arc-shaped plates 16, wherein first fasteners 17 are disposed at two ends of the top of each arc-shaped plate 16, and first clamping blocks 18 are disposed at two ends of the bottom of each arc-shaped plate 16; the first buckle 17 is used for being clamped with a second buckle 19 on the outer wall of the rigid outer pipe 10; the first latch 18 is adapted to be plugged into a slot 20 of the base plate 14.
The flexible outer pipe comprises an arc-shaped support 21 matched with the flexible outer pipe 11, an eccentric wheel 22 arranged on the arc-shaped support 21 and a first driving device used for driving the eccentric wheel 22 to rotate. As shown in fig. 5, the arc-shaped bracket 21 is longitudinally and slidably fitted on a guide rail 23, the top end of the guide rail 23 is detachably connected with the rigid outer tube 10, and the bottom end of the guide rail 23 is detachably connected with the bottom plate 14; and a second driving device 24 for driving the arc-shaped bracket 21 to slide on the guide rail 23. The number of the guide rails 23 is two, and two ends of the arc-shaped support 21 are respectively matched on the two guide rails 23 in a sliding manner; a third buckle 28 is arranged at the top of the guide rail 23, a second clamping block 25 is arranged at the bottom of the guide rail 23, and the third buckle 28 is used for being clamped with the second buckle 19 on the outer wall of the rigid outer tube 10; the second block 25 is used for being plugged into the slot 20 on the bottom plate 14.
And the annular pressing plate 26 is matched with the annular space 12, and the annular pressing plates 26 are connected by a connecting rod 27. The connecting rod 27 comprises a plurality of electric telescopic rods which are uniformly distributed in an annular mode, and the electric telescopic rods are installed above the pipe string 1.
In this embodiment, the arc bracket 21 and the arc plate 16 share the second buckle 19 and the second locking groove 20, so that the radians and the sizes of the arc bracket 21 and the arc plate 16 are equal, and the perpendicular line between the two guide rails 23 is a chord on the cross section of the arc plate 16. The temporary clamping connection between the second buckle 19 and the first buckle 17 and the third buckle 28 can be any temporary detachable connection that can be realized by those skilled in the art, such as overlapping, fastening, and even magic tape bonding.
In this embodiment, as shown in fig. 6, the electric telescopic handle further includes a top plate 29 located right above the cylinder, the electric telescopic handle is mounted on the top plate 29, and the top plate 29 is further used for mounting a fixed pulley for reversing the pull rope 4. Because a plurality of electric telescopic handle are the annular equipartition, consequently stay cord 4 from wherein between two electric telescopic handle pass can, can not cause the interference. The top plate 29 may be fixed by any means, such as a special frame, a mounting frame matched with and fixed to the bottom plate, or even independently installed from the bottom plate.
The multimedia system of the embodiment can be used for carrying out various types of oil and gas drilling tripping demonstration, and the specific operation steps comprise:
s1, in an initial state, the pipe string 1 integrally descends, so that the first protruding part 2 is located at the bottom end of the flexible inner pipe 9;
s2, installing the arc-shaped plates 16, splicing the arc-shaped plates 16 into an annular rigid cladding part, and cladding the annular rigid cladding part outside the flexible outer pipe 11;
s3, filling clay into the annular space 12 from the top, starting each electric telescopic rod, driving the annular pressing plate 26 to reciprocate downwards, and compacting the clay in the annular space;
s4, starting the power device 5 to enable the pipe string 1 to integrally ascend until the first protruding part 2 enters the rigid inner pipe 8; in the process, the clay extending towards the inner direction of the flexible inner pipe is upwards extruded into an annular space between the rigid inner pipe and the rigid outer pipe by the first protruding part and the second protruding part, so that the inner wall of the flexible inner pipe is also flat;
s5, injecting fluid for simulating drilling fluid into the rigid inner pipe 8, and filling all the inner pipes with the fluid through the flow channel 15;
s6, detaching an arc-shaped plate 16, and installing an integral structure consisting of two guide rails 23 and an arc-shaped support 21 at the position of the arc-shaped plate, as shown in figure 4; before installation, the position of the eccentric wheel 22 and the overall height of the arc-shaped support 21 are adjusted, so that the convex part of the eccentric wheel 22 is outward in the radial direction, and the flexible outer pipe is prevented from being extruded in advance;
s7, starting a first driving device, and adjusting the angle of the eccentric wheel 22 according to the radial depth of a required blocking point; the eccentric wheel 22 is made to press the flexible outer tube 11, and the lifting on the guide rail 23 is controlled according to the requirement, such as:
if the demonstration is to demonstrate the hole shrinkage resistance clamp, the eccentric wheel 22 is made to extrude the flexible outer pipe 11 at a specified position, so that the clay in the flexible outer pipe and the flexible inner pipe 9 are deformed at the same time, and then the eccentric wheel is reset;
if the key slot blocking needs to be demonstrated, after the eccentric wheel 22 extrudes the flexible outer pipe 11 at a specified position, the angle of the eccentric wheel 22 is kept unchanged, the second driving device 24 drives the arc-shaped support 21 and the eccentric wheel 22 to integrally lift to a set height, and the eccentric wheel is reset after the required key slot is formed;
if the step surface is blocked, the eccentric wheel 22 is made to extrude the flexible outer tube 11 at the top or the bottom, and the whole body is lifted to a set height, so that the eccentric wheel is reset after the required step is formed;
s8, starting the power device 5 to enable the pipe string 1 to descend integrally, demonstrating the blocking process in the drilling process, and displaying the measured data of each sensor in real time by the multimedia display device 7 until the pipe string descends to the bottom end;
and S9, similarly, repeating the step S7, then starting the power device 5 to enable the pipe string 1 to ascend integrally, demonstrating the clamping process in the drilling process, and showing the actually measured data of each sensor in real time by the multimedia display device 7 until the first protruding part 2 ascends to the inner part 8 of the rigid inner pipe.
Thus, the complete demonstration of the drilling tool drilling resistance and tripping process is completed. Of course, when the demonstration device is used specifically, only the drill-tripping demonstration or the drill-tripping demonstration can be performed in a single operation according to actual needs.
Preferably, the annular pressure plate 26 can be used before each demonstration to make the clay in the annular compact and stable.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Further, the term "connected" used herein may be directly connected or indirectly connected via other components without being particularly described.
Claims (10)
1. The multimedia system for the oil and gas drilling tripping demonstration is characterized by comprising a barrel for simulating a shaft, a pipe string (1) positioned in the barrel, a first protruding part (2) and a second protruding part (3) connected to the pipe string (1), a pull rope (4) connected with the pipe string (1), and a power device (5) for winding and unwinding the pull rope (4), wherein the first protruding part (2) is positioned at the bottom end of the pipe string (1), the second protruding part (3) is positioned above the first protruding part (2), the outer diameter of the first protruding part (2) is equal to the inner diameter of the pipe string (1), and the outer diameter of the second protruding part (3) is smaller than the inner diameter of the pipe string (1);
the device also comprises a tension sensor and a pressure sensor (6); the tension sensor is used for monitoring the tension of the pull rope (4), and the pressure sensors (6) are positioned on the bottom surface of the first protruding part (2), the top surface of the first protruding part (2), the side surface of the top surface of the first protruding part (2), the bottom surface of the second protruding part (3) and the top surface of the second protruding part (3);
and the multimedia display device (7) is in signal connection with the tension sensor and the pressure sensor (6).
2. The multimedia system for oil and gas drilling tripping demonstration according to claim 1, characterized in that the cylinder comprises a rigid inner pipe (8), a flexible inner pipe (9) distributed up and down, and a rigid outer pipe (10) outside the first rigid inner pipe (8), a flexible outer pipe (11) outside the flexible inner pipe (9); an annular space (12) with a closed bottom is formed between the rigid inner pipe (8) and the rigid outer pipe (10) and between the flexible inner pipe (9) and the flexible outer pipe (11); and a flow channel (15) which is communicated up and down is formed in the first protruding part (2).
3. Multimedia system for oil and gas drilling tripping demonstration according to claim 2, characterized in that a third protrusion (13) is provided on top of the string (1), the outer diameter of the third protrusion (13) being equal to the inner diameter of the rigid inner pipe (8).
4. The multimedia system for oil and gas drilling tripping demonstration according to claim 2, characterized in that further comprises a bottom plate (14), wherein the bottom ends of the flexible inner tube (9) and the flexible outer tube (11) are hermetically connected with the bottom plate (14).
5. The multimedia system for demonstration of tripping in and out of an oil and gas drilling according to claim 4, further comprising a rigid cladding matching the flexible outer tube (11), the rigid cladding being adapted to be clad outside the flexible outer tube (11); the top end of the rigid cladding piece is detachably connected with the rigid outer pipe (10), and the bottom end of the rigid cladding piece is detachably connected with the bottom plate (14).
6. The multimedia system for demonstration of tripping in and out of an oil and gas drilling according to claim 5, wherein the rigid cladding comprises a plurality of arc-shaped plates (16), wherein first buckles (17) are arranged at two ends of the top of the arc-shaped plates (16), and first clamping blocks (18) are arranged at two ends of the bottom of the arc-shaped plates (16); the first buckle (17) is used for being clamped with a second buckle (19) on the outer wall of the rigid outer pipe (10); the first clamping block (18) is used for being plugged with a slot (20) on the bottom plate (14).
7. The multimedia system for oil and gas drilling tripping demonstration according to claim 4, characterized by further comprising an arc-shaped bracket (21) matched with the flexible outer pipe (11), an eccentric wheel (22) mounted on the arc-shaped bracket (21), and a first driving device for driving the eccentric wheel (22) to rotate; the arc-shaped support (21) is matched on the guide rail (23) in a sliding mode along the longitudinal direction, the top end of the guide rail (23) is detachably connected with the rigid outer pipe (10), and the bottom end of the guide rail (23) is detachably connected with the bottom plate (14); the device also comprises a second driving device (24) for driving the arc-shaped bracket (21) to slide on the guide rail (23).
8. The multimedia system for demonstration of tripping in and out of oil and gas drilling according to claim 7, characterized in that said guide rails (23) are two in number, and both ends of said arc-shaped support (21) are respectively sliding fitted on the two guide rails (23); a third buckle (28) is arranged at the top of the guide rail (23), a second clamping block (25) is arranged at the bottom of the guide rail (23), and the third buckle (28) is used for being clamped with a second buckle (19) on the outer wall of the rigid outer pipe (10); the second fixture block (25) is used for being inserted into the slot (20) in the bottom plate (14).
9. The multimedia system for oil and gas drilling tripping demonstration according to claim 2, characterized by further comprising annular pressure plates (26) matching the annulus (12), the annular pressure plates (26) being connected by tie rods (27).
10. The multimedia system for oil and gas drilling tripping demonstration according to claim 9, characterized in that said connecting rod (27) comprises a plurality of electric telescopic rods distributed annularly and mounted above said string of pipes (1).
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| CN115691239B (en) | 2024-05-14 |
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