CN117386314B - Liquid-driven coiled tubing jar - Google Patents
Liquid-driven coiled tubing jar Download PDFInfo
- Publication number
- CN117386314B CN117386314B CN202311710031.1A CN202311710031A CN117386314B CN 117386314 B CN117386314 B CN 117386314B CN 202311710031 A CN202311710031 A CN 202311710031A CN 117386314 B CN117386314 B CN 117386314B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- jarring
- shock
- valve plate
- fluid
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 230000035939 shock Effects 0.000 claims abstract description 95
- 239000012530 fluid Substances 0.000 claims abstract description 85
- 230000005540 biological transmission Effects 0.000 claims description 47
- 230000003068 static effect Effects 0.000 claims description 36
- 238000009434 installation Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 10
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
- E21B31/113—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically-operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Actuator (AREA)
Abstract
The invention discloses a liquid-driven coiled tubing jar, and relates to the technical field of drilling equipment. According to the invention, the liquid pressure is used for compressing the shock piston rod, and medium on-off of the cavity at the rear end of the shock piston rod is realized through the rotary control assembly, so that the pressure difference at the front end and the rear end of the shock piston rod is controlled, the rotary control assembly is driven to rotate by liquid, and the rotating speed of the rotary control assembly can be regulated by regulating the flow rate of the liquid, so that the purpose of controlling the shock frequency of the shock piston rod is achieved. The invention does not need a movable drilling tool, fluid drives the jarring, the frequency of the jarring is high, the frequency can be adjusted, and meanwhile, the continuous jarring can be realized.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a liquid-driven coiled tubing jar.
Background
In coiled tubing drilling and grinding operations, drill stuck (i.e., stuck) accidents often occur due to complex geological structures, improper technical measures, and various reasons such as mud, pipe strings, wellbores, etc. Because of the characteristics of the coiled tubing, the tensile strength is high, and the clamped tubular column cannot be effectively lifted. Therefore, when the drilling tool is blocked, the blocking point can be loosened by a strong shock force through the shock device, so that the purpose of rapidly releasing the blocking is achieved.
The jar can also be widely applied to workover operations such as coiled tubing salvage, so that the salvage operation is more reliable and quick. The jars technology is introduced from the 70 s in China, but compared with the drilling technology, the jars have great gaps in technical level, product quality and maintenance service, particularly the jars matched with the coiled tubing in small specification are influenced by the large environment of the operation of the coiled tubing, the sealing materials of the jars and the processing precision, and no good solution exists.
The invention provides a hydraulic up-striking impactor for a coiled tubing and a coiled tubing tool, as disclosed in the patent application publication No. CN113323614A, wherein the publication No. CN113323614A is 10-19 of the publication No. 2021, and the hydraulic up-striking impactor for the coiled tubing comprises an upper joint, a mandrel, an upper piston, a compression spring, a spring outer cylinder, a main shell, a sealing shell, a lower joint, a flow valve, a valve seat, a guide sleeve and a return spring. The upper joint connects the mandrel with the upper oil pipe, the upper piston is fixedly connected with the mandrel, the valve seat is fixedly arranged in the upper piston, the spring outer cylinder and the main shell of the sealing shell are sequentially and fixedly connected and sleeved on the mandrel and the outer wall of the upper piston, the compression spring is arranged between the outer wall of the mandrel and the inner wall of the spring outer cylinder, and the flow valve, the guide sleeve and the return spring are arranged in a second cavity formed among the inner wall of the main shell, the lower end face of the upper piston and the upper end face of the lower joint from top to bottom; the upper end of the flow valve enters the upper piston, and the lower end of the flow valve enters the guide sleeve; the upper end of the lower joint is fixedly connected with the lower end of the main shell.
The hydraulic upper impact impactor in the prior art needs to lift the upper joint, and release the internal energy storage to realize upper impact. When the coiled tubing works, because the coiled tubing is pressurized and is bent, when the coiled tubing is combined with the existing jars, reliable jarring force can not be provided by lifting, the jarring effect is poor, and the requirement of eliminating the blocking can not be met.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides a liquid-driven continuous oil pipe jar, and the invention aims to provide a liquid-driven continuous oil pipe jar which does not need a lifting drilling tool, does not need a movable drilling tool and has high and adjustable shock frequency. According to the invention, the liquid pressure is used for compressing the shock piston rod, and medium on-off of the cavity at the rear end of the shock piston rod is realized through the rotary control assembly, so that the pressure difference at the front end and the rear end of the shock piston rod is controlled, the rotary control assembly is driven to rotate by liquid, and the rotating speed of the rotary control assembly can be regulated by regulating the flow rate of the liquid, so that the purpose of controlling the shock frequency of the shock piston rod is achieved. The invention does not need a movable drilling tool, fluid drives the jarring, the frequency of the jarring is high, the frequency can be adjusted, and meanwhile, the continuous jarring can be realized.
In order to solve the problems in the prior art, the invention is realized by the following technical scheme.
The invention provides a liquid-driven coiled tubing jar, which comprises a main cylinder body and a jarring part, wherein the jarring part is assembled in the main cylinder body; the shock component comprises a shock assembly and a rotating assembly, the shock assembly comprises a shock piston and a shock cylinder, the front end of the shock cylinder is assembled in the main cylinder through a first flow dividing piece, and the rear end of the shock cylinder is assembled in the main cylinder through a second flow dividing piece; the outer wall of the jarring cylinder body and the inner wall of the main cylinder body form a fluid channel, and fluid enters the fluid channel from the front end of the main cylinder body through a first flow dividing piece and then flows out of the fluid channel through a second flow dividing piece;
the shock piston is assembled at the front end of the shock cylinder in a sliding sealing fit manner, and a mounting cavity for mounting a shock spring is arranged between the shock piston and the rear end of the shock cylinder; a third flow passage which is communicated with the mounting cavity and the inner cavity of the main cylinder body is arranged at the rear end of the jarring cylinder body;
the rotating assembly is assembled in the main cylinder body at the tail end of the third flow passage, the tail end of the third flow passage is provided with a static valve plate, the rotating assembly is provided with a movable valve plate, and the movable valve plate and the static valve plate are matched to control the on-off of the third flow passage;
when the fluid in the main cylinder body enters, part of the fluid enters the front end of the jarring cylinder body, and the jarring piston at the front end of the jarring cylinder body is pushed to move backwards under the pressure of the fluid, so that the jarring spring is compressed; part of fluid enters a fluid channel between the jarring cylinder and the main cylinder through the first flow dividing piece and flows out into a cavity at the rear end of the main cylinder through the second flow dividing piece, the fluid acts on the rotating component to drive the rotating component to rotate, and drives the movable valve plate to rotate relative to the static valve plate, so that the on-off of a third flow passage is realized; when the third flow passage is closed, the fluid at the front end of the jarring cylinder pushes the jarring piston to retreat, and the operation is repeated in this way, and the on-off of the third flow passage is controlled through the rotation of the fluid driving rotating assembly, so that continuous jarring is formed.
Further preferably, the movable valve plate is integrally of a sleeve structure with an opening at the front end and a closed rear end, a second flow passage is formed in the axial center, a second through hole is formed in the side wall of the movable valve plate, one end of the second flow passage is provided with the opening at the front end of the sleeve, and the other end of the second flow passage is provided with the second through hole; the static valve plate is cylindrical, a semicircular notch matched with the second through hole is formed in the static valve plate, the movable valve plate is arranged in the static valve plate, and the static valve plate is sleeved at the end part of the third flow passage.
Further preferably, the front end of the shock piston is connected with a shock piston rod, the rear end of the shock piston rod is connected with the shock piston, and the front end of the shock piston extends from the front end opening of the shock cylinder to the front end of the main cylinder.
Further preferably, the rotating assembly comprises a transmission shaft barrel, a turbine rotor is mounted at the rear end of the transmission shaft barrel, the front end of the transmission shaft barrel is in transmission connection with the movable valve plate, and the transmission shaft barrel is mounted in a cavity at the rear end of the main barrel through a bearing.
Still more preferably, the movable valve plate is connected with the transmission shaft cylinder through a coupling.
Still more preferably, the transmission shaft barrel is provided with a first runner at the center of the rear end, and a first through hole is formed in the transmission shaft barrel and is positioned at the bottom end of the first runner and communicated with the first runner and the inner cavity of the main barrel.
Still more preferably, the turbine rotor is sleeved on the transmission shaft cylinder and is pressed and fixed through the mounting cylinder and the pressing sleeve, wherein after the turbine rotor is sleeved on the upper end of the transmission shaft cylinder, the mounting cylinder is sleeved on the pressing sleeve, and the turbine rotor is fixed through the pressing sleeve.
Still further preferably, a turbine stator is provided on the inner wall of the main cylinder at a position corresponding to the turbine rotor
Still further preferably, the main cylinder comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder which are sequentially connected together; the first flow dividing piece is respectively abutted with the jarring cylinder body and the first cylinder body; the rear end of the jarring cylinder is provided with a shaft shoulder, and the second shunt is sleeved on the jarring cylinder and is respectively abutted with the shaft shoulder of the jarring cylinder and the third cylinder; a third runner at the tail end of the jarring cylinder extends into the third cylinder; the rotating assembly is assembled in the fourth cylinder.
Further preferably, the first flow dividing member and the second flow dividing member are both in cylindrical structures, the center of the first flow dividing member and the second flow dividing member is provided with a mounting hole, and the periphery of the first flow dividing member and the second flow dividing member is provided with a plurality of fluid flow passages.
Compared with the prior art, the beneficial technical effects brought by the invention are as follows:
the invention discloses a liquid-driven coiled tubing jar, which does not need a movable drilling tool, is high in jarring frequency, can adjust the frequency and can realize continuous jarring; the communication and the cut-off of the working fluid in the third flow passage are controlled through the rotation of the movable valve plate; in the rotating process of the movable valve plate, the second through hole is opened and closed; when the second through hole is opened, the working fluid entering the inner cavity of the third cylinder body enters the mounting cavity through the second through hole, at the moment, the fluid pressure at the two sides of the piston is the same, and the piston jars leftwards under the action of spring force; when the second through hole is closed, no liquid pressure exists in the mounting cavity, the piston is subjected to working fluid pressure in the inner cavity of the first cylinder body, and the spring is compressed towards the direction of the mounting cavity; in the periodic closing and opening of the second through hole, the piston rod reciprocates in the piston cylinder, thereby realizing continuous shock.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a coiled tubing jar of the present invention;
FIG. 2 is a schematic view of the flow divider of the present invention;
FIG. 3 is a schematic structural view of a movable valve plate according to the present invention;
FIG. 4 is a schematic structural view of a static valve plate according to the present invention;
reference numerals: 1. the device comprises a first cylinder body, 2, a second cylinder body, 3, a third cylinder body, 4, a fourth cylinder body, 5, a fifth cylinder body, 6, a shock cylinder body, 7, a shock piston rod, 8, a mounting cavity, 9, a transmission shaft cylinder, 10, a turbine rotor, 11, a movable valve plate, 12, a static valve plate, 13, a turbine stator, 14, a first flow passage, 15, a second flow passage, 16, a third flow passage, 17, a first through hole, 18, a second through hole, 19, a shock piston, 20, a first flow divider, 21, a second flow divider, 22, a fluid passage, 23, a shock spring, 24, a semicircular notch, 25, a coupler, 26, a fluid flow passage, 27 and a mounting hole.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As a preferred embodiment of the present invention, and with reference to FIG. 1 of the drawings, there is disclosed a liquid-driven coiled tubing jar comprising a main barrel and a jar member, the jar member being mounted within the main barrel; the jarring component comprises a jarring assembly and a rotating assembly, the jarring assembly comprises a jarring piston 19 and a jarring cylinder 6, the front end of the jarring cylinder 6 is assembled in the main cylinder through a first shunt 20, and the rear end of the jarring cylinder 6 is assembled in the main cylinder through a second shunt 21; the outer wall of the jarring cylinder 6 and the inner wall of the main cylinder form a fluid channel 22, and fluid enters the fluid channel 22 from the front end of the main cylinder through a first flow dividing piece 20 and then flows out of the fluid channel 22 through a second flow dividing piece 21;
the shock piston 19 is assembled at the front end of the shock cylinder 6 in a sliding sealing fit manner, and a mounting cavity 8 for mounting a shock spring 23 is arranged between the shock piston 19 and the rear end of the shock cylinder 6; a third flow passage 16 which is communicated with the mounting cavity 8 and the inner cavity of the main cylinder body is arranged at the rear end of the jarring cylinder body 6;
the rotating component is assembled in the main cylinder at the tail end of the third flow channel 16, the tail end of the third flow channel 16 is provided with a static valve plate 12, the rotating component is provided with a movable valve plate 11, and the movable valve plate 11 and the static valve plate 12 are matched to control the on-off of the third flow channel 16;
when the fluid enters the main cylinder, part of the fluid enters the front end of the jarring cylinder 6, the jarring piston 19 at the front end of the jarring cylinder 6 is pushed to move backwards under the pressure of the fluid, and the jarring spring 23 is compressed; part of fluid enters a fluid channel 22 between the jarring cylinder 6 and the main cylinder through the first flow dividing piece 20 and flows out into a cavity at the rear end of the main cylinder through the second flow dividing piece 21, the fluid acts on the rotating component to drive the rotating component to rotate, the moving valve plate 11 is driven to rotate relative to the static valve plate 12, the on-off of the third flow passage 16 is realized, when the third flow passage 16 is opened, the fluid flowing out through the second flow dividing piece 21 enters the third flow passage 16 and enters the installation cavity 8, when the pressure difference of the fluid received by the front end and the rear end of the jarring piston 19 is insufficient to overcome the elasticity of the jarring spring 23, the jarring piston 19 moves forwards to collide with the front end of the jarring cylinder 6 under the action of the jarring spring 23, so as to form jarring; when the third flow passage 16 is closed, the fluid at the front end of the shock cylinder 6 pushes the shock piston 19 to retreat, the fluid in the mounting cavity 8 flows out through the gap between the static valve plate 12 and the movable valve plate 11, when the static valve plate 12 and the movable valve plate 11 are closed, a certain gap exists between the static valve plate 12 and the movable valve plate 11, the gap is not completely sealed, when the shock piston 19 receives fluid pressure at the full end, the received fluid pressure is greater than the fluid pressure received at the rear end of the shock piston 19, the fluid in the mounting cavity 8 is extruded outwards, and the fluid is extruded out of the mounting cavity through the gap between the third flow passage 16 and the static valve plate 12 and the movable valve plate 11, so that the shock piston 19 is compressed again. Repeating this, the third flow passage 16 is controlled to open and close by the rotation of the fluid-driven rotating assembly, and a continuous shock is formed.
Example 2
As a further preferred embodiment of the present invention, this embodiment is further supplemented and explained in detail by the technical solution of the present invention based on embodiment 1 described above. In this embodiment, referring to fig. 3 and fig. 4 of the specification, the movable valve plate 11 is integrally a sleeve structure with a front end opening and a rear end closed, a second flow passage 15 is formed in the axial center, a second through hole 18 is formed in the side wall of the second flow passage 15, one end opening of the second flow passage 15 is the front end opening of the sleeve, and the other end opening of the second flow passage is the second through hole 18; the static valve plate 12 is in a cylindrical tube shape, a semicircular notch 24 matched with the second through hole 18 is formed in the static valve plate 12, the movable valve plate 11 is installed in the static valve plate 12, and the static valve plate 12 is sleeved at the end part of the third flow channel 16.
In this embodiment, the movable valve plate 11 rotates under the action of the rotating component, and during the rotation process of the movable valve plate 11, the second through hole 18 is periodically shielded and opened by the semicircular notch 24 on the static valve plate 12, so as to realize the communication and cut-off between the inner cavity of the main cylinder outside the third flow channel 16 and the second flow channel 15, and further realize the communication and cut-off between the installation cavity 8 and the third flow channel 16; when the position of the second through hole 18 on the movable valve plate 11 is completely exposed to the semicircular notch 24, fluid can enter the mounting cavity 8 through the second through hole 18; when the second through hole 18 on the movable valve plate 11 is not located in the semicircular notch 24, the mounting cavity 8 and the third flow channel 16 are closed, and fluid cannot enter the third flow channel 16, namely, the communication and the cut-off of the fluid in the third flow channel 16 are controlled by the rotation of the movable valve plate 11.
In actual operation, fluid (working fluid) enters the inner cavity of the main cylinder, the pressure of the fluid can push the shock piston 19 to compress the shock spring 23 in the installation cavity 8, meanwhile, the fluid can enter the fluid channel 22 between the shock cylinder 6 and the inner wall of the main cylinder through the first flow dividing piece 20 in the front end of the main cylinder, then enter the inner cavity of the main cylinder at the rear end of the shock cylinder 6 through the second flow dividing piece 21, then the fluid acts on the rotating assembly to drive the rotating assembly to rotate, the movable valve plate 11 rotates along with the rotating assembly, in the rotating process of the movable valve plate 11, the opening and closing of the second through hole 18 are realized, and the opening and closing of the third flow channel 16 and the installation cavity 8 are realized, when the third flow channel 16 is opened, the fluid enters the installation cavity 8, at the moment, the fluid pressure on two sides of the shock piston 19 is the same, and the shock piston 19 is shocked forwards under the elastic action of the shock spring 23; when the second through hole 18 is closed, the third flow passage 16 is closed, no fluid pressure exists in the installation cavity 8, and the shock piston 19 compresses the shock spring 23 towards the installation cavity 8 by the fluid pressure at the front end of the main cylinder. In the periodic closing and opening of the second through-hole 18, the jarring piston 19 reciprocates in the jarring cylinder 6, effecting a continuous jarring.
The control and adjustment of the frequency of the jarring may be achieved by controlling the fluid flow rate, and thus the rate of rotation of the rotating assembly, and thus the frequency of periodic closing and opening of the second through-holes 18.
In this embodiment, the structure of the movable valve plate 11 and the static valve plate 12 are tightly matched, and the sealing performance is good, so that erosion of fluid to the movable valve plate 11 and the static valve plate 12 is effectively avoided by providing the semicircular notch 24 on the static valve plate 12, the service life of the jar can be prolonged, and the jar is ensured to stably move for a long time.
Example 3
As a further preferred embodiment of the present invention, this embodiment is further supplemented and explained in detail by the technical solution of the present invention based on embodiment 1 or embodiment 2 described above. In this embodiment, referring to fig. 1 in the specification, the front end of the shock piston 19 is connected with a shock piston rod 7, the rear end of the shock piston rod 7 is connected with the shock piston 19, and the front end of the shock piston 19 extends from the front end opening of the shock cylinder 6 to the front end of the main cylinder.
In this embodiment, by providing the shock piston rod 7, a certain guiding and limiting effect is provided for the movement of the shock piston 19, so that the axial movement of the shock piston 19 is ensured not to deviate. The front end face of the shock piston rod 7 extends into the front end of the main cylinder body, is impacted by fluid and can be conducted to the shock piston 19.
Example 4
As a further preferred embodiment of the present invention, this embodiment is further supplemented and explained in detail by the technical solution of the present invention based on the above-described embodiment 1, embodiment 2 or embodiment 3. In this embodiment, the rotating assembly includes a transmission shaft barrel 9, a turbine rotor 10 is installed at the rear end of the transmission shaft barrel 9, the front end of the transmission shaft barrel 9 is in transmission connection with a movable valve plate 11, and the transmission shaft barrel 9 is installed in a cavity at the rear end of the main barrel through a bearing.
As an example, the movable valve plate 11 is connected to the transmission shaft cylinder 9 via a coupling 25.
As another example, the center of the rear end of the transmission shaft barrel 9 is provided with a first flow channel 14, the transmission shaft barrel 9 is provided with a first through hole 17, and the first through hole 17 is located at the bottom end of the first flow channel 14 and is communicated with the first flow channel 14 and the inner cavity of the main barrel.
The turbine rotor 10 is sleeved on the transmission shaft cylinder 9 and is pressed and fixed through the mounting cylinder and the pressing sleeve, wherein the turbine rotor 10 is sleeved on the upper end of the transmission shaft cylinder 9 and is sleeved on the pressing sleeve, and the mounting cylinder is used for fixing the turbine rotor 10 through the pressing sleeve.
Still further preferably, a turbine stator 13 is fitted on the inner wall of the main cylinder at a position corresponding to the turbine rotor 10.
Example 5
As still another preferred embodiment of the present invention, this embodiment is further supplemented and explained in detail by the technical solution of the present invention based on the above-described embodiment 1, embodiment 2, embodiment 3 or embodiment 4. In this embodiment, the main cylinder includes a first cylinder 1, a second cylinder 2, a third cylinder 3, a fourth cylinder 4 and a fifth cylinder 5 which are sequentially connected by threads; a jarring part is arranged in the main cylinder body and comprises a jarring assembly and a rotating assembly; the shock assembly comprises a shock cylinder body 6 and a shock piston rod 7, wherein the shock piston rod 7 is installed in the shock cylinder body 6, and an installation cavity 8 for installing a spring is arranged between the shock piston rod 7 and the shock cylinder body 6; the rotating assembly comprises a transmission shaft barrel 9, a turbine rotor 10 is arranged at the rear end of the transmission shaft barrel 9, the front end of the transmission shaft barrel 9 is in transmission connection with a movable valve plate 11, and the transmission shaft barrel 9 and the movable valve plate 11 are arranged on a transmission seat through bearings; the rear end of the shock cylinder 6 is provided with a static valve plate 12, and the inner wall of the fourth cylinder 4 is provided with a turbine stator 13.
In this embodiment, the rear end of the jarring cylinder 6 is provided with a shaft shoulder, a first flow dividing member is arranged between the front end of the jarring cylinder 6 and the rear end of the first cylinder 1, and a second flow dividing member is arranged between the shaft shoulder of the jarring cylinder 6 and the front end of the third cylinder 3. The first flow dividing piece is sleeved on the jarring piston rod 7 and is respectively in butt joint with the jarring cylinder 6 and the first cylinder 1, and the second flow dividing piece is sleeved on the jarring cylinder 6 and is respectively in butt joint with the shaft shoulder of the jarring cylinder 6 and the third cylinder 3.
The inner cavity of the first cylinder body 1 is communicated with the inner cavity of the second cylinder body 2 through a first flow dividing piece, the second cylinder body 2 is communicated with the third cylinder body 3 through a second flow dividing piece, the rear end of the third cylinder body 3 is communicated with the front end of the fourth cylinder body 4, and the rear end of the fourth cylinder body 4 is communicated with the front end of the fifth cylinder body 5.
Specifically, a first flow channel 14 is formed in the center of the rear end of the transmission shaft barrel 9, a first through hole 17 is formed in the transmission shaft barrel 9, the first through hole 17 is located at the bottom end of the first flow channel 14 and is communicated with the first flow channel 14 and the inner cavity of the fourth barrel 4, a second flow channel 15 is formed in the center of the movable valve plate 11, a second through hole 18 is formed in the movable valve plate 11, and the second through hole 18 is communicated with the second flow channel 15 and the inner cavity of the third barrel 3; a third flow passage 16 is arranged in the center of the rear end of the shock cylinder 6, and the third flow passage 16 is communicated with the mounting cavity 8 and the second flow passage 15.
As shown in fig. 1, the turbine stator 13 is fixed on the inner wall of the fourth cylinder 4, the turbine rotor 10 is sleeved on the transmission shaft cylinder 9 and is pressed and fixed through the mounting cylinder and the pressing sleeve, wherein the turbine rotor 10 is sleeved on the upper end of the transmission shaft cylinder 9 and then sleeved into the pressing sleeve, and the mounting cylinder is used for fixing the turbine rotor 10 through the pressing sleeve; as shown in fig. 3 and fig. 4, the whole movable valve plate 11 is a sleeve structure with an open front end and a closed rear end, a second flow passage 15 is formed in the axial center, second through holes 18 are symmetrically formed in the side wall, one end of the second flow passage 15 is provided with an opening at the front end of the sleeve, the other end of the second flow passage 15 is provided with two second through holes 18, and the rear end of the movable valve plate 11 is provided with a coupler structure and is used for being in transmission fit with the transmission shaft barrel 9; the static valve plate 12 is in a cylindrical tube shape, a semicircular notch matched with the second through hole 18 is formed in the static valve plate 12, and the movable valve plate 11 is arranged in the static valve plate 12;
the movable valve plate 11 rotates under the action of the transmission shaft cylinder 9, and in the rotating process of the movable valve plate 11, the second through hole 18 is periodically shielded and opened through a semicircular notch on the static valve plate 12, so that the inner cavity of the third cylinder 3 is communicated with and stopped by the second flow passage 15, and further the installation cavity 8 and the third flow passage 16 are communicated and stopped; when the position of the second through hole 18 on the movable valve plate 11 is completely exposed in the semicircular notch, working fluid can enter the mounting cavity 8 through the second through hole 18; when the position of the second through hole 18 on the movable valve plate 11 is not in the semicircular notch 24, the mounting cavity 8 and the third flow channel 16 are closed, and working fluid cannot enter the third flow channel 16; namely, the communication and the cut-off of the working fluid in the third flow passage 16 are controlled by the rotation of the movable valve plate 11;
during actual operation, working fluid enters the inner cavity of the first cylinder body 1, and the pressure of the working fluid pushes the piston rod to compress the spring in the mounting cavity 8; meanwhile, working fluid enters the inner cavity of the second cylinder 2 through the first flow dividing piece in the first cylinder 1, and then enters the inner cavity of the third cylinder 3 through the second flow dividing piece; as shown in fig. 2, the first splitter and the second splitter are similar in structure, are cylindrical like bolts, are provided with a mounting hole 27 at the center and are provided with fluid channels 26 in the circumferential direction; the part of the working fluid entering the inner cavity of the third cylinder body 3 directly enters the inner cavity of the fourth cylinder body 4, and then part of the working fluid passes through the turbine on the circumference of the driving shaft cylinder 9 to drive the turbine to rotate, and simultaneously flows into the inner cavity of the fourth cylinder body 4 at the rear side of the turbine; the other part of working fluid enters the first flow passage 14 in the transmission shaft barrel 9 through the first through hole 17 and then flows into the inner cavity of the fourth barrel 4 through the first flow passage 14; at this time, the turbine drives the transmission shaft cylinder 9 to rotate, so that the movable valve plate 11 connected with the transmission shaft cylinder 9 rotates; during the rotation of the movable valve plate 11, the second through hole 18 is opened and closed; when the second through holes 18 are opened, the working fluid entering the inner cavity of the third cylinder body 3 partially enters the mounting cavity 8 through the third flow channel 16 through the second through holes 18, at the moment, the fluid pressure at the two sides of the piston is the same, and the piston jars leftwards under the action of spring force; when the second through hole 18 is closed, the third flow passage 16 is closed, no liquid pressure exists in the mounting cavity 8, the piston receives the working fluid pressure in the inner cavity of the first cylinder body 1, and the spring is compressed towards the direction of the mounting cavity 8; in the periodic closing and opening of the second through-hole 18, the piston rod reciprocates in the piston cylinder, effecting a continuous shock.
While the present inventive concept has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (10)
1. A liquid-driven coiled tubing jar, characterized by: comprises a main cylinder body and a jarring part, wherein the jarring part is assembled in the main cylinder body; the shock component comprises a shock assembly and a rotation assembly, the shock assembly comprises a shock piston (19) and a shock cylinder body (6), the front end of the shock cylinder body (6) is assembled in the main cylinder body through a first flow dividing piece (20), and the rear end of the shock cylinder body (6) is assembled in the main cylinder body through a second flow dividing piece (21); the outer wall of the jarring cylinder (6) and the inner wall of the main cylinder form a fluid channel (22), and fluid enters the fluid channel (22) from the front end of the main cylinder through a first flow dividing piece (20) and then flows out of the fluid channel (22) through a second flow dividing piece (21);
the shock piston (19) is assembled at the front end of the shock cylinder (6) in a sliding and sealing mode, and a mounting cavity (8) for mounting a shock spring (23) is arranged between the shock piston (19) and the rear end of the shock cylinder (6); a third runner (16) which is communicated with the mounting cavity (8) and the inner cavity of the main cylinder body is arranged at the rear end of the jarring cylinder body (6);
the rotating assembly is assembled in a main cylinder at the tail end of the third flow channel (16), the tail end of the third flow channel (16) is provided with a static valve plate (12), the rotating assembly is provided with a movable valve plate (11), and the movable valve plate (11) and the static valve plate (12) are matched to control the on-off of the third flow channel (16);
when the fluid enters the main cylinder body, part of the fluid enters the front end of the jarring cylinder body (6), the jarring piston (19) at the front end of the jarring cylinder body (6) is pushed to move backwards under the pressure of the fluid, and the jarring spring (23) is compressed; part of fluid enters a fluid channel (22) between the jarring cylinder (6) and the main cylinder through the first flow dividing piece (20) and flows out into a cavity at the rear end of the main cylinder through the second flow dividing piece (21), the fluid acts on the rotating component to drive the rotating component to rotate, the moving valve plate (11) is driven to rotate relative to the static valve plate (12), the on-off of a third flow passage (16) is realized, when the third flow passage (16) is opened, the fluid flowing out through the second flow dividing piece (21) enters the third flow passage (16) and enters the installation cavity (8), and when the pressure difference of the fluid received by the front end and the rear end of the jarring piston (19) is insufficient to overcome the elasticity of the jarring spring (23), the jarring piston (19) moves forwards to collide with the front end of the jarring cylinder (6) under the action of the jarring spring (23), so as to form jarring; when the third flow passage (16) is closed, fluid at the front end of the jarring cylinder (6) pushes the jarring piston (19) to retreat, and the operations are repeated in the way, and the on-off of the third flow passage (16) is controlled through the rotation of the fluid driving rotating assembly, so that continuous jarring is formed.
2. A liquid-driven coiled tubing jar as defined in claim 1, wherein: the movable valve plate (11) is integrally of a sleeve structure with an opening at the front end and a closed rear end, a second flow passage (15) is formed in the axial center, a second through hole (18) is formed in the side wall of the movable valve plate, one end opening of the second flow passage (15) is the front end opening of the sleeve, and the other end opening of the second flow passage is the second through hole (18); the static valve plate (12) is in a cylindrical tube shape, a semicircular notch (24) matched with the second through hole (18) is formed in the static valve plate (12), the movable valve plate (11) is arranged in the static valve plate (12), and the static valve plate (12) is sleeved at the end part of the third flow channel (16).
3. A liquid-driven coiled tubing jar as defined in claim 1, wherein: the front end of the shock piston (19) is connected with a shock piston rod (7), the rear end of the shock piston rod (7) is connected with the shock piston (19), and the front end of the shock piston (19) extends from the front end opening of the shock cylinder (6) to the front end of the main cylinder.
4. A liquid-driven coiled tubing jar as claimed in any of claims 1 to 3, wherein: the rotary assembly comprises a transmission shaft barrel (9), a turbine rotor (10) is arranged at the rear end of the transmission shaft barrel (9), the front end of the transmission shaft barrel (9) is in transmission connection with a movable valve plate (11), and the transmission shaft barrel (9) is arranged in a cavity at the rear end of the main barrel through a bearing.
5. A liquid-driven coiled tubing jar as defined in claim 4, wherein: the movable valve plate (11) is connected with the transmission shaft cylinder (9) through a coupler (25).
6. A liquid-driven coiled tubing jar as defined in claim 4, wherein: the center of the rear end of the transmission shaft barrel (9) is provided with a first flow channel (14), the transmission shaft barrel (9) is provided with a first through hole (17), and the first through hole (17) is positioned at the bottom end of the first flow channel (14) and is communicated with the first flow channel (14) and the inner cavity of the main barrel.
7. A liquid-driven coiled tubing jar as defined in claim 4, wherein: the turbine rotor (10) is sleeved on the transmission shaft cylinder (9) and is pressed and fixed through the mounting cylinder and the pressing sleeve, wherein the turbine rotor (10) is sleeved on the upper end of the transmission shaft cylinder (9) and is sleeved with the pressing sleeve, and the mounting cylinder is used for fixing the turbine rotor (10) through the pressing sleeve.
8. A liquid-driven coiled tubing jar as defined in claim 4, wherein: a turbine stator (13) is mounted on the inner wall of the main cylinder at a position corresponding to the turbine rotor (10).
9. A liquid-driven coiled tubing jar as claimed in any of claims 1 to 3, wherein: the main cylinder body comprises a first cylinder body (1), a second cylinder body (2), a third cylinder body (3) and a fourth cylinder body (4) which are sequentially connected together; the first shunt (20) is respectively abutted with the jarring cylinder (6) and the first cylinder (1); the rear end of the jarring cylinder (6) is provided with a shaft shoulder, and the second flow dividing piece (21) is sleeved on the jarring cylinder (6) and is respectively abutted with the shaft shoulder of the jarring cylinder (6) and the third cylinder (3); a third runner (16) at the tail end of the jarring cylinder (6) extends into the third cylinder (3); the rotating assembly is assembled in the fourth cylinder (4).
10. A liquid-driven coiled tubing jar as claimed in any of claims 1 to 3, wherein: the first flow dividing piece (20) and the second flow dividing piece (21) are of cylindrical structures, the center of each flow dividing piece is provided with a mounting hole (27), and the periphery of each flow dividing piece is provided with a plurality of fluid flow passages (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311710031.1A CN117386314B (en) | 2023-12-13 | 2023-12-13 | Liquid-driven coiled tubing jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311710031.1A CN117386314B (en) | 2023-12-13 | 2023-12-13 | Liquid-driven coiled tubing jar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117386314A CN117386314A (en) | 2024-01-12 |
| CN117386314B true CN117386314B (en) | 2024-03-08 |
Family
ID=89437838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311710031.1A Active CN117386314B (en) | 2023-12-13 | 2023-12-13 | Liquid-driven coiled tubing jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117386314B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955634A (en) * | 1975-06-23 | 1976-05-11 | Bowen Tools, Inc. | Hydraulic well jar |
| EP0245892A2 (en) * | 1986-05-16 | 1987-11-19 | Shell Internationale Researchmaatschappij B.V. | Apparatus for vibrating a pipe string in a borehole |
| US4846273A (en) * | 1987-09-21 | 1989-07-11 | Anderson Edwin A | Jar mechanism accelerator |
| US5503228A (en) * | 1994-12-05 | 1996-04-02 | Anderson; Edwin A. | Jar apparatus and method of jarring |
| WO2012122141A1 (en) * | 2011-03-10 | 2012-09-13 | Thru Tubing Solutions, Inc. | Jarring method and apparatus using fluid pressure to reset jar |
| CN107664012A (en) * | 2017-11-07 | 2018-02-06 | 西南石油大学 | The two-way high frequency composite impact device of turbine type |
| CN207093010U (en) * | 2017-08-02 | 2018-03-13 | 中国石油天然气股份有限公司 | Hydraulic pressure jarring releasing instrument |
| CN207268167U (en) * | 2017-10-10 | 2018-04-24 | 贵州高峰石油机械股份有限公司 | A kind of release device using the continuous vibration of spring period stretch |
| CN208330251U (en) * | 2018-04-11 | 2019-01-04 | 中国石油天然气集团有限公司 | Continuous low frequency bumper jar |
| CN109386248A (en) * | 2017-08-02 | 2019-02-26 | 中国石油天然气股份有限公司 | Hydraulic jarring releasing tool |
| RU2735012C1 (en) * | 2020-07-28 | 2020-10-27 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | Hydromechanical double-sided action freefall with controlled activation force |
| CN214221131U (en) * | 2021-01-15 | 2021-09-17 | 宝鸡正元石油科技有限公司 | Bidirectional hydraulic jar for coiled tubing |
| GB2606563A (en) * | 2021-05-13 | 2022-11-16 | Rotojar Innovations Ltd | Reciprocating drive apparatus |
| CN116927702A (en) * | 2022-04-02 | 2023-10-24 | 中国石油天然气集团有限公司 | Continuous jarring releasing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2722608C (en) * | 2008-05-05 | 2015-06-30 | Weatherford/Lamb, Inc. | Tools and methods for hanging and/or expanding liner strings |
| US9879495B2 (en) * | 2014-06-05 | 2018-01-30 | Klx Energy Services Llc | Hydraulic pipe string vibrator for reducing well bore friction |
| US11280146B2 (en) * | 2019-06-18 | 2022-03-22 | Jason Swinford | Fluid driven jarring device |
-
2023
- 2023-12-13 CN CN202311710031.1A patent/CN117386314B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955634A (en) * | 1975-06-23 | 1976-05-11 | Bowen Tools, Inc. | Hydraulic well jar |
| EP0245892A2 (en) * | 1986-05-16 | 1987-11-19 | Shell Internationale Researchmaatschappij B.V. | Apparatus for vibrating a pipe string in a borehole |
| US4846273A (en) * | 1987-09-21 | 1989-07-11 | Anderson Edwin A | Jar mechanism accelerator |
| US5503228A (en) * | 1994-12-05 | 1996-04-02 | Anderson; Edwin A. | Jar apparatus and method of jarring |
| WO2012122141A1 (en) * | 2011-03-10 | 2012-09-13 | Thru Tubing Solutions, Inc. | Jarring method and apparatus using fluid pressure to reset jar |
| CN207093010U (en) * | 2017-08-02 | 2018-03-13 | 中国石油天然气股份有限公司 | Hydraulic pressure jarring releasing instrument |
| CN109386248A (en) * | 2017-08-02 | 2019-02-26 | 中国石油天然气股份有限公司 | Hydraulic jarring releasing tool |
| CN207268167U (en) * | 2017-10-10 | 2018-04-24 | 贵州高峰石油机械股份有限公司 | A kind of release device using the continuous vibration of spring period stretch |
| CN107664012A (en) * | 2017-11-07 | 2018-02-06 | 西南石油大学 | The two-way high frequency composite impact device of turbine type |
| CN208330251U (en) * | 2018-04-11 | 2019-01-04 | 中国石油天然气集团有限公司 | Continuous low frequency bumper jar |
| RU2735012C1 (en) * | 2020-07-28 | 2020-10-27 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | Hydromechanical double-sided action freefall with controlled activation force |
| CN214221131U (en) * | 2021-01-15 | 2021-09-17 | 宝鸡正元石油科技有限公司 | Bidirectional hydraulic jar for coiled tubing |
| GB2606563A (en) * | 2021-05-13 | 2022-11-16 | Rotojar Innovations Ltd | Reciprocating drive apparatus |
| CN116927702A (en) * | 2022-04-02 | 2023-10-24 | 中国石油天然气集团有限公司 | Continuous jarring releasing device |
Non-Patent Citations (3)
| Title |
|---|
| 液压连续震击器的研制与应用;胡鸿浩;;江汉石油职工大学学报(第02期);全文 * |
| 自研水力振荡器在川渝地区 连续管水平井作业中的应用;卢秀德;《焊管》;全文 * |
| 连续管震击工具技术现状及发展建议;王攀;王进全;栾苏;闫永宏;张玉玲;段红霞;董毅军;;石油机械(第11期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117386314A (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109372424B (en) | Composite impact speed-increasing drilling tool for coiled tubing | |
| US9115541B2 (en) | Impulse-type underground supercharged jet drilling method and device | |
| CN105026111B (en) | Hydraulic hammer with coaxial accumulator and piston | |
| CN102310391B (en) | Tool equipment | |
| CN109403866B (en) | High-frequency hydraulic pulse oscillation drag-reducing accelerator with high rate | |
| CN108468514B (en) | Oscillating device for underground hydraulic oscillator | |
| CN109113567B (en) | Hydraulic pressurizing jet tool | |
| CN109681114B (en) | Bidirectional high-frequency torsion impactor applied to PDC drill bit acceleration | |
| CN110593762B (en) | Reciprocating low-pressure high-frequency hydraulic pulse vibrator | |
| CN208534402U (en) | A kind of hydroscillator | |
| CN108442883B (en) | Underground hydraulic oscillator | |
| CN111173443A (en) | Double-liquid-drive rotary percussion drilling impactor and double-liquid-drive rotary percussion drilling method | |
| CN113719267B (en) | Near-bit variable-frequency pressurizing oscillation tool with mechanical nonlinear control | |
| CN117386314B (en) | Liquid-driven coiled tubing jar | |
| CN111877978A (en) | Hydraulic impactor | |
| CN211648054U (en) | Vertical valve type hydraulic oscillator | |
| CN210049818U (en) | Be applied to two-way high frequency torsion impacter of PDC drill bit acceleration | |
| CN115749656B (en) | Impact type deformed sleeve repairing tool | |
| CN107989547B (en) | Hydraulic impact system | |
| CN105756597A (en) | Jar | |
| CN116025274A (en) | Anchor cable punching device and punching method thereof | |
| CN113047784B (en) | Intelligent diameter-variable stabilizer | |
| CN114370233A (en) | Impact screw drill tool combination with information storage and vertical drilling functions | |
| CN208502646U (en) | A kind of contactless strong magnetic impactor | |
| CN109386248B (en) | Hydraulic shock jam releasing tool |
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 |