CN112081537A - Hollow sucker rod guider - Google Patents
Hollow sucker rod guider Download PDFInfo
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- CN112081537A CN112081537A CN202011108431.1A CN202011108431A CN112081537A CN 112081537 A CN112081537 A CN 112081537A CN 202011108431 A CN202011108431 A CN 202011108431A CN 112081537 A CN112081537 A CN 112081537A
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- sucker rod
- connecting sleeve
- hollow sucker
- connector
- arc
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000002347 injection Methods 0.000 claims description 32
- 239000007924 injection Substances 0.000 claims description 32
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 210000003781 tooth socket Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 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
- 238000003754 machining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Classifications
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Earth Drilling (AREA)
Abstract
The application provides a hollow sucker rod guider relates to oil gas exploitation equipment field. Hollow sucker rod director includes: the number of the connectors is two, the connectors are tubular, a plurality of arc-shaped teeth are arranged on the outer wall of the first end at intervals, and external threads are arranged at the second end; the inner wall of the first end is internally provided with internal threads and tooth grooves once from the end part, the groove bottoms of the tooth grooves are arc-shaped, the number of the tooth grooves is multiple and are arranged on the inner wall of the connecting sleeve at intervals for one circle, the structure of the second end of the connecting sleeve is the same as that of the first end, the first ends of the two connectors are respectively connected with the two ends of the connecting sleeve, and the arc-shaped teeth are meshed with the tooth grooves; locking piece, for cyclic annular and be equipped with the external screw thread, the quantity of locking piece is two, respectively with the internal thread connection at adapter sleeve both ends, lock being connected of connector and adapter sleeve. The hollow sucker rod guider connector can be bent relative to the connecting sleeve to rotate for a preset angle, and can be matched with a hollow sucker rod and used for connecting a screw pump in an L-shaped horizontal well to perform drainage and mining work.
Description
Technical Field
The application relates to the field of oil and gas exploitation equipment, in particular to a hollow sucker rod guider.
Background
Coal bed gas is developed in China as an unconventional energy source very quickly, with the continuous improvement of technology, an L-shaped horizontal well is becoming a main production well type in coal bed gas development, and most of the L-shaped horizontal wells are drained and mined by screw pumps.
Because coal bed gas well water production is less, clear water needs to be injected from the ground, so that pulverized coal in the well is taken out of the ground, and an aluminum-plastic pipe needs to be hung outside an oil pipe in the traditional reinjection water system. However, because the trajectory inclination angle of the L-shaped horizontal well is relatively large, the externally-hung aluminum-plastic pipe is particularly easily worn or flattened during the construction operation, and some connecting head parts are also very easily disconnected, which often results in that the water re-injection operation cannot be performed.
In order to solve the above technical problems, the technical problem that the water injection pipe is easily worn and flattened is solved by arranging the water injection pipe in the hollow sucker rod, which is thought to be applied to the drainage and production of the L-shaped horizontal well by the skilled person, but the hollow sucker rod is currently used in the L-shaped horizontal well, and there is no guide which can be used for connecting the hollow sucker rod at the bent position of the well. Therefore, in order to use the hollow sucker rod to connect the screw pump for drainage and production in the L-shaped horizontal well, a guider suitable for connecting the hollow sucker rod needs to be designed.
Disclosure of Invention
The invention mainly aims to provide a hollow sucker rod guider which can be connected with a hollow sucker rod so that the hollow sucker rod can be suitable for being connected with a screw pump in an L-shaped horizontal well to perform drainage and mining work.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
the application provides a hollow sucker rod director, includes: the connector comprises two connectors, the connectors are tubular, a plurality of arc-shaped teeth are arranged on the outer wall of the first end at intervals around the first end, and external threads are arranged at the second end;
the connecting sleeve comprises a connecting sleeve, wherein an inner wall of a first end of the connecting sleeve is internally provided with internal threads and tooth grooves once from the end part, the bottom of each tooth groove is arc-shaped, the number of the tooth grooves is multiple and the tooth grooves are arranged at intervals on the periphery of the inner wall of the connecting sleeve, the structure of a second end of the connecting sleeve is the same as that of the first end, the first ends of two connectors are respectively connected with the two ends of the connecting sleeve, and the arc-shaped teeth are meshed with the tooth grooves;
the locking pieces are annular and provided with external threads, and the number of the locking pieces is two, the two locking pieces are respectively connected with the internal threads at the two ends of the connecting sleeve and are used for locking the connection between the connector and the connecting sleeve;
the inner diameter of the locking piece is larger than the outer diameter of the connector, and the connector can be opposite to the rotation preset angle of the bending of the connecting sleeve.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, in the guide for a hollow sucker rod, the preset angle at which the connector can rotate relative to the connecting sleeve is 7 to 10 degrees.
Optionally, the arc degree of the arc-shaped tooth is 10-20 degrees, and the arc degree of the groove bottom of the tooth groove is 10-20 degrees.
Optionally, in the aforementioned hollow sucker rod guide, the number of the arc-shaped teeth on the outer wall of the first end of the connector is 8 to 25, and the arc-shaped teeth are uniformly distributed on the outer wall of the first end of the connector at intervals.
Optionally, in the hollow sucker rod guide, a boss is disposed in a middle portion of an inner wall of the connecting sleeve, and the boss and the locking member define a radial movement space of the arc-shaped teeth of the connecting head together.
Optionally, the aforementioned hollow sucker rod guide further comprises:
the first hose locking head is tubular, the first end of the first hose locking head is provided with internal threads for being connected with the external threads of the second end of the connecting head, and the second end of the first hose locking head is provided with a sucker rod connecting female head;
the second hose locking head, the second hose locking head has the through-hole, first end be provided with the internal thread be used for with the second end external screw thread connection of connector, the second end sets up to sucker rod connection public head.
Optionally, in the hollow sucker rod guide, a convex ring extending towards the center line direction is disposed in the middle of the inner wall of the first hose locking head, so as to form a through hole for matching with a joint at one end of a water injection pipe.
Optionally, in the hollow sucker rod guide, a pin hole is formed in the middle of the second hose locking head from the outer wall to the inner wall, and the pin hole is used for penetrating through the pin to limit the other end of the water injection pipe.
Optionally, in the hollow sucker rod guide, the number of the pin holes is multiple, and the pin holes are uniformly distributed at intervals around the second hose lock joint.
Optionally, in the hollow sucker rod guide, the connector, the connecting sleeve, the locking member, the first hose locking head, and the second hose locking head are all made of stainless steel.
By the technical scheme, the hollow sucker rod guider at least has the following advantages:
according to the hollow sucker rod guider provided by the embodiment of the invention, the two connectors are connected through the connecting sleeve, the connectors and the connecting sleeve can rotate relatively for a preset angle, the connectors are tubular, and the two connectors and the connecting sleeve can form a communicated channel. Therefore, after the hollow sucker rod guider provided by the embodiment of the invention is connected with a hollow sucker rod, the hollow sucker rod guider and the hollow sucker rod guider can form a communicated hollow structure, a water injection pipe can be penetrated through the hollow sucker rod guider, the water injection pipe is protected from being flattened and the abrasion of the water injection pipe is reduced, meanwhile, the hollow sucker rod guider can also be bent to rotate by a preset angle, the hollow sucker rod guider can be suitable for a bent part of an L-shaped horizontal well, and the hollow sucker rod guider can be used in the L-shaped horizontal well and connected with a screw pump for drainage and mining work. In addition, compared with a solid guide, the hollow sucker rod guide in a hollow form has light overall weight, and can bear higher torsion by making the outer diameter of the hollow sucker rod guide larger while considering the weight of the whole sucker rod, so that the overall structural strength is higher, and the use safety and durability are improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic view showing the structure of a hollow sucker rod guide;
FIG. 2 is a schematic view showing the construction of a coupling head of a hollow sucker rod guide;
FIG. 3 is a schematic view showing the construction of a coupling sleeve of a hollow sucker rod guide;
FIG. 4 is a schematic view showing the structure of a first hose locking head of a hollow sucker rod guide;
fig. 5 is a schematic view showing the structure of the second hose locking head of the hollow sucker rod guide.
The reference numerals in fig. 1-5 are:
the connecting device comprises a connecting head 1, arc-shaped teeth 11, a connecting sleeve 2, a tooth groove 21, a boss 22, a locking piece 3, a first hose locking head 4, a sucker rod connecting female head 41, a convex ring 42, a through hole 43, a second hose locking head 5, a sucker rod connecting male head 51 and a pin hole 52.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
As shown in fig. 1 to 3, an embodiment of the present invention provides a hollow sucker rod guide, including: the connector comprises connectors 1, wherein the number of the connectors 1 is two, the connectors 1 are tubular, a plurality of arc-shaped teeth 11 are arranged on the outer wall of the first end at intervals, and external threads are arranged at the second end;
the connecting sleeve 2 is characterized in that internal threads and tooth grooves 21 are formed in the inner wall of the first end of the connecting sleeve 2 from the end part inwards at one time, the bottom of each tooth groove 21 is arc-shaped, the tooth grooves 21 are multiple and are arranged on the inner wall of the connecting sleeve 2 at intervals in a circle, the structure of the second end of the connecting sleeve 2 is the same as that of the first end, the first ends of the two connectors 1 are respectively connected with the two ends of the connecting sleeve 2, and the arc-shaped teeth 11 are meshed with the tooth grooves 21;
the locking pieces 3 are annular and provided with external threads, and the number of the locking pieces 3 is two, the two locking pieces are respectively connected with the internal threads at the two ends of the connecting sleeve 2 and are used for locking the connection between the connector 1 and the connecting sleeve 2;
the inner diameter of the locking piece 3 is larger than the outer diameter of the connector 1, and the connector 1 can be opposite to the rotation preset angle of the connecting sleeve 2 in a bending mode.
Specifically, the hollow sucker rod guider is used for connecting a hollow sucker rod to enable a connecting part to rotate, and is further suitable for the bent part of an L-shaped horizontal well, and meanwhile, the hollow sucker rod guider also needs to have certain strength and certain corrosion resistance to ensure the stability of connection and the overall durability, so that all parts of the hollow sucker rod guider can be made of stainless steel materials.
The main body of the connector 1 is tubular and can be a blank of a pipe body structure, and then arc-shaped teeth 11 and external threads are respectively processed at two ends. The specific parameters of the external thread are not limited as long as the external thread can be tightly connected with the connecting piece; the quantity of arc tooth 11 can carry out specific setting according to the torsion when relative adapter sleeve 2 rotates, and the tooth root of arc tooth 11 is the same with the tooth on the conventional gear, makes the addendum circular-arcly, and the one end that connector 1 has arc tooth 11 presents spherical gear form promptly, and arc tooth 11 cooperates with adapter sleeve 2's tooth's socket 21 that has the circular arc like this after, can realize the rotation of connector 1 relative adapter sleeve 2, and then satisfies the user demand. It should be noted that the hollow diameter of the middle part of the connector 1 needs to meet the requirement of placing the water injection pipe.
The connecting sleeve 2 is a structure for realizing the connection of the two connectors 1 and realizing the rotation relative to the connectors 1, the structural size of each part of the connecting sleeve needs to be matched with the connectors 1, inner threads are arranged on the inner walls of the end parts of the two ends of the connecting sleeve, the two ends are inward, namely, towards the other end respectively, the tooth sockets 21 are arranged, the tooth sockets 21 need to be meshed with the arc-shaped teeth 11, the tooth sockets 21 at the two ends can be communicated or disconnected, and it needs to be noted that the arrangement of the inner threads can not influence the insertion of the connectors 1 into the two ends of the connecting sleeve 2, namely, the arc-shaped teeth 11 of the connectors 1 can not extend into the tooth sockets 21. After the two connectors 1 respectively extend into the two sides of the connecting sleeve 2, the arc-shaped teeth 11 of the two connectors 1 are respectively meshed with the tooth grooves 21 on the two sides of the connecting sleeve 2, the arc-shaped teeth 11 can rotate relative to the tooth grooves 21, the rotating axis is perpendicular to the axis of the connecting sleeve 2, namely, the connecting sleeve 2 bends and rotates relative to the connecting sleeve, and when the pipe body part of the connector 1 is abutted against the end part of the connecting sleeve 2, the pipe body part rotates to the maximum angle position.
The inner threads arranged at the two ends of the connecting sleeve 2 can be connected with the locking piece 3, the locking piece 3 is an annular body and is provided with an outer thread, the outer wall of the connecting head 1 can be sleeved with the outer thread, and the locking piece 3 is connected with the inner threads of the connecting sleeve 2, so that the locking piece 3 connected with the inner threads on the two sides of the connecting sleeve 2 can prevent the connecting head 1 from being pulled out of the connecting sleeve 2, the connecting head 1 and the connecting sleeve 2 cannot be separated in the length direction, and the situation that disconnection is not needed to be worried after the connecting heads 1 at the two ends are connected.
According to the hollow sucker rod guider provided by the embodiment of the invention, the two connectors 1 are connected through the connecting sleeve 2, the connectors 1 and the connecting sleeve 2 can rotate relatively for a preset angle, the connectors 1 are tubular, and the two connectors 1 and the connecting sleeve 2 can form a communicated channel. Therefore, after the hollow sucker rod guider provided by the embodiment of the invention is connected with a hollow sucker rod, the hollow sucker rod guider and the hollow sucker rod guider can form a communicated hollow structure, a water injection pipe can be penetrated through the hollow sucker rod guider, the water injection pipe is protected from being flattened and the abrasion of the water injection pipe is reduced, meanwhile, the hollow sucker rod guider can also be bent to rotate by a preset angle, the hollow sucker rod guider can be suitable for a bent part of an L-shaped horizontal well, and the hollow sucker rod guider can be used in the L-shaped horizontal well and connected with a screw pump for drainage and mining work. In addition, compared with a solid guide, the hollow sucker rod guide in a hollow form has light overall weight, and can bear higher torsion by making the outer diameter of the hollow sucker rod guide larger while considering the weight of the whole sucker rod, so that the overall structural strength is higher, and the use safety and durability are improved.
As shown in fig. 1 to 3, in a specific implementation, the preset angle at which the connection head 1 can rotate relative to the connection sleeve 2 is 7 to 10 degrees.
In particular, the rotation angle of the connecting head 1 relative to the connecting sleeve 2, i.e. the above-mentioned relative rotation angle of 7-10, can be achieved by setting the curvature of the arc-shaped teeth 11 to 10-20 degrees, for example 19 degrees, and the curvature of the groove bottom of the tooth grooves 21 to 10-20 degrees, for example 19 degrees. In addition, can set up other parameters of suitable arc tooth 11 according to the needs to the whole torsion of hollow sucker rod director, this parameter can be according to the production needs of reality, when machining connector 1 and adapter sleeve 2, carries out specific setting to handing over and being processed out by the master of machining.
As shown in fig. 1-3, in the specific implementation, the number of the arc-shaped teeth 11 on the outer wall of the first end of the connecting head 1 is 8-25, and the arc-shaped teeth are uniformly distributed around the outer wall of the first end of the connecting head 1 at intervals.
Specifically, through the reciprocating use simulation experiment, namely under the condition that the same pulling force and torsion as the actual production condition are applied to the hollow sucker rod guider, the reciprocating action of the sucker rod is simulated again, and when the number of the arc-shaped teeth 11 is 8-25, the connector 1 is the most durable.
As shown in fig. 1 and 3, in the specific implementation, a boss 22 is provided at the middle of the inner wall of the connecting sleeve 2, and is used for limiting the radial movement space of the arc-shaped teeth 11 of the connecting head 1 together with the locking piece 3.
Specifically, the arrangement of the boss 22 limits the axial movement of the connector 1 relative to the connecting sleeve 2, specifically between the locking member 3 and the boss 22, so that the connector 1 can have a certain axial movement relative to the connecting sleeve 2, and meanwhile, the relative rotation action can not be influenced, and the use requirement can be further met. It should be noted that one end of the boss 22 close to the center of the connecting sleeve 2 is preferably flush with the inner wall of the connector 1, so that the two connectors 1 and the connecting sleeve 2 can form a drift diameter with the same size after being connected, and a water injection pipe can be conveniently arranged in the drift diameter.
As shown in fig. 1, 4 and 5, in a specific implementation, the hollow sucker rod guide provided by the embodiment of the present invention further includes:
the first hose locking head 4 is tubular, an internal thread is arranged at a first end of the first hose locking head 4 and is used for being connected with an external thread at a second end of the connector 1, and a sucker rod is arranged at the second end of the first hose locking head 4 and is connected with the female connector 41; second hose locking head 5, second hose locking head 5 has through-hole 43, first end be provided with the internal thread be used for with the second end threaded connection of connector 1, the second end sets up to sucker rod connection male joint 51.
Specifically, wear to locate the water injection pipe in the hollow sucker rod also need be the sectional type, the water injection pipe that is located in the hollow sucker rod director promptly should be one section, so preferred first hose locking head 4 and the second hose locking head 5 of setting up, come the locking of water injection pipe in the hollow sucker rod director, can make hollow sucker rod director become one whole with this section water injection pipe like this, when first hose locking head 4 and the second hose locking head 5 at the both ends of hollow sucker rod director are connected with hollow sucker rod, this section water injection pipe can be connected with the water injection pipe in the hollow sucker rod respectively.
Wherein, the internal thread that the first end of first hose locking head 4 set up need with the external screw thread cooperation of connector 1 second end to and the internal thread of the first end of second hose locking head 5 also need with the external screw thread cooperation of connector 1 second end, so that firm connection becomes one whole. The sucker rod arranged at the second end of the first hose locking head 4 is connected with a female head 41, namely an internal thread female head which can be connected with a male head of a hollow sucker rod, and the specific structure can be matched with the male head of the hollow sucker rod; likewise, the sucker rod that the second end of second hose locking head 5 set up connects public head 51, the external screw thread that can be connected with the female head of hollow sucker rod promptly is public, and concrete structure can be joined in marriage with the female head of hollow sucker rod and does to can connect public head 51 at the sucker rod and set up the annular that is used for placing the sealing washer.
Furthermore, a convex ring 42 extending towards the center line direction is arranged in the middle of the inner wall of the first hose locking head 4 to form a through hole 43 used for matching with a joint at one end of a water injection pipe; and a pin hole 52 is formed in the middle of the second hose locking head 5 from the outer wall to the inner wall and used for penetrating a pin to limit the other end connector of the water injection pipe.
Specifically, the water injection pipe uses a high pressure resistant hose commonly used by technicians in the prior art, and both ends of the water injection pipe are respectively provided with a male head and a female head of a quick pipe joint. So in order to fix the water injection pipe in hollow sucker rod guider stably, set up the bulge loop 42 that extends to the central line direction with the inner wall middle part of first hose locking head 4 to form through-hole 43, the public head of water injection pipe can penetrate in this through-hole 43, and the middle part of second hose locking head 5 sets up pinhole 52, then can be through setting up the pin card on the female first metal step of water injection pipe, and then inject the water injection pipe in hollow sucker rod guider.
Still further, for stable limited water injection pipe, can set up the quantity of pinhole 52 into a plurality ofly to evenly spaced distribution is in second hose lock joint's a week can wear to establish a plurality of pins like this and carry on spacingly to the female head of water injection pipe, promotes the spacing effect to the water injection pipe.
In the concrete implementation, because the environment that hollow sucker rod guider used has the corrosive substance of sulphide etc. in order to promote the corrosion-resistant performance of hollow sucker rod guider, preferably will constitute all parts of hollow sucker rod guider, promptly the connector 1 the adapter sleeve 2, locking piece 3 first hose locking head 4 second hose locking head 5 all adopts stainless steel material to make.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A hollow sucker rod guider, which is characterized by comprising:
the connector comprises two connectors, the connectors are tubular, a plurality of arc-shaped teeth are arranged on the outer wall of the first end at intervals around the first end, and external threads are arranged at the second end;
the connecting sleeve comprises a connecting sleeve, wherein an inner wall of a first end of the connecting sleeve is internally provided with internal threads and tooth grooves once from the end part, the bottom of each tooth groove is arc-shaped, the number of the tooth grooves is multiple and the tooth grooves are arranged at intervals on the periphery of the inner wall of the connecting sleeve, the structure of a second end of the connecting sleeve is the same as that of the first end, the first ends of two connectors are respectively connected with the two ends of the connecting sleeve, and the arc-shaped teeth are meshed with the tooth grooves;
the locking pieces are annular and provided with external threads, and the number of the locking pieces is two, the two locking pieces are respectively connected with the internal threads at the two ends of the connecting sleeve and are used for locking the connection between the connector and the connecting sleeve;
the inner diameter of the locking piece is larger than the outer diameter of the connector, and the connector can be opposite to the rotation preset angle of the bending of the connecting sleeve.
2. The hollow sucker rod guide of claim 1,
the connector can be relative the preset angle of the connecting sleeve rotation is 7-10 degrees.
3. The hollow sucker rod guide of claim 2,
the radian of the arc-shaped teeth is 10-20 degrees, and the radian of the groove bottom of the tooth groove is 10-20 degrees.
4. The hollow sucker rod guide of claim 1,
the number of the arc-shaped teeth on the outer wall of the first end of the connector is 8-25, and the arc-shaped teeth are uniformly distributed on the outer wall of the first end of the connector at intervals.
5. The hollow sucker rod guide of claim 1,
the middle part of the inner wall of the connecting sleeve is provided with a boss used for limiting the radial movement space of the arc-shaped teeth of the connecting head together with the locking piece.
6. The hollow sucker rod guide of claim 1, further comprising:
the first hose locking head is tubular, the first end of the first hose locking head is provided with internal threads for being connected with the external threads of the second end of the connecting head, and the second end of the first hose locking head is provided with a sucker rod connecting female head;
the second hose locking head, the second hose locking head has the through-hole, first end be provided with the internal thread be used for with the second end external screw thread connection of connector, the second end sets up to sucker rod connection public head.
7. The hollow sucker rod guide of claim 6,
the middle part of the inner wall of the first hose locking head is provided with a convex ring extending towards the direction of the central line to form a through hole used for being matched with one end connector of the water injection pipe.
8. The hollow sucker rod guide of claim 6,
and a pin hole is formed in the middle of the second hose locking head from the outer wall to the inner wall and used for penetrating the pin to limit the other end connector of the water injection pipe.
9. The hollow sucker rod guide of claim 8,
the number of the pin holes is multiple, and the pin holes are uniformly distributed on the periphery of the second hose lock joint at intervals.
10. The hollow sucker rod guide of claim 6,
the connector the adapter sleeve the locking piece first hose locking head second hose locking head all adopts stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011108431.1A CN112081537A (en) | 2020-10-16 | 2020-10-16 | Hollow sucker rod guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011108431.1A CN112081537A (en) | 2020-10-16 | 2020-10-16 | Hollow sucker rod guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112081537A true CN112081537A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011108431.1A Pending CN112081537A (en) | 2020-10-16 | 2020-10-16 | Hollow sucker rod guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112081537A (en) |
-
2020
- 2020-10-16 CN CN202011108431.1A patent/CN112081537A/en active Pending
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