Tripping tool of rod type oil well pump

Abstract

The utility model discloses a lifting tool of a rod type oil well pump, which belongs to the technical field of suspension devices, is operated through suspension of a lifting device, and comprises a first body and a second body which are respectively provided with notches opposite to each other in position, are used for clamping a clamping point of the rod type oil well pump, are connected with each other and can rotate relatively; the locking piece is connected to the first body and the second body, and the locking piece is used for locking the first body and the second body; the suspension connecting rod is provided with two connecting ends and a clamping end, the two connecting ends are connected to the first body and the second body respectively, and the clamping end is used for being connected with a lifting device. According to the device, the super-long rod type pump can be effectively clamped, the super-long rod type pump can be quickly and safely lifted, the influence on a body and a pull rod of the rod type pump is avoided, the lifting efficiency and safety are effectively improved, and meanwhile the maintenance period is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of suspension devices, and particularly relates to a rod type oil well pump hoisting tool. BACKGROUND

[0002] The super-long rod type pump is a pump device with a long rod body, and is usually used for extracting and conveying underground oil layers and can also be used for gas extraction. With the breakthrough of deep coal rock gas in the Dongbian area of the Ordos Basin, the development of deep coal rock gas is currently mainly based on horizontal wells, but great success has also been achieved in the reconstruction of dense gas straight directional wells. The gas extraction technology of deep coal rock gas straight directional wells is still mainly based on the three-pumping technology. The deep coal rock gas reservoir in the Dongbian area has a burial depth of about 2200m. Due to the highest 20-30m of the deep coal rock gas reservoir after pressure release, the 12 type is mainly selected for the pumping unit, and the 10 type and 14 type are auxiliary. The 38mm pump diameter is mainly used for the oil well pump, and the 32mm and 44mm are auxiliary. In order to improve the pump efficiency and reduce the pipe rod eccentric wear and corrosion in the production process under the condition of low submergence, the pumping unit basically adopts the high-stroke and low-strike production mode. 3

[0003] The terrain of the Dongbian area of the Ordos Basin is mainly the Loess Plateau. Due to the influence of the terrain, XJ500 and below type workover rigs are basically used. Taking the XJ500 workover rig as an example, the mast height of the workover rig is 21m, the traveling block length is 1.9m, and the small hook length is 2m. The daily adjusted anti-collision crown block height is 2.5m, and the wellhead height is greater than or equal to 1.5m. Therefore, the length of the lifting tool string is only about 13.1m. The super-long rod type pump used in the deep coal rock gas well has a length of 8.0m. The conventional downhole pump uses the oil rod elevator hook lifting rod type pump rod reducer, and in the case of full pulling of the rod, the length of the rod type pump rod and the rod type pump body is about 14.8m. Under normal circumstances, the super-long rod type pump cannot be lowered into the well or lifted to the wellhead.

[0004] ​Currently, there are two ways to lower the super-long rod pump into the well: 1. using a wire to pass through the outlet of the super-long rod pump to lower the pump; 2. using the sucker rod hanger to lift the rod pump and use the pipe wrench to force the pump barrel into the well, and finally use the free-fall method to lower the pump into the well. The above-mentioned two ways have the following disadvantages: 1. the wire damages the anticorrosive layer of the super-long rod pump, which seriously affects the anticorrosive effect, and the rod pump may fall into the well during the process of lowering the pump or lifting the super-long rod pump out of the well; 2. when the rod pump is lifted by the rod, the rod is easily bent and deformed due to the weight of the pump, which leads to eccentric wear and shortens the service life of the pump, and in severe cases, the rod cannot be reinserted into the pump barrel; 3. the super-long rod pump used in the field is usually a φ38mm thin-walled rod pump, and during the process of lifting the pump by the pipe wrench, the pump barrel is deformed to varying degrees, which affects the pump efficiency or causes the super-long rod pump to be stuck. Therefore, there is no suitable tool for assisting the lowering and lifting of the super-long rod pump. Content of the utility model

[0005] The present application aims to at least solve the technical problem of assisting the lowering and lifting of the super-long rod pump to some extent, and therefore provides a lowering and lifting tool for rod oil well pump, which can effectively clamp the super-long rod pump, quickly and safely lower and lift the super-long rod pump, avoid affecting the body and rod of the rod pump, effectively improve the lowering and lifting efficiency and safety, and prolong the maintenance period.

[0006] The present application provides a lowering and lifting tool for rod oil well pump, which is suspended and operated by a lifting device, comprising:

[0007] The first body and the second body are respectively provided with notches opposite to each other, the notches are used to clamp the clamping point of the rod oil well pump, and the first body and the second body are detachably connected;

[0008] The locking member is connected to the first body and the second body, and is used to lock the first body and the second body;

[0009] The suspension connecting rod has two connecting ends and a clamping end, the two connecting ends are respectively connected to the first body and the second body, and the clamping end is used to connect the lifting device.

[0010] In some embodiments, the connection between the first body and the second body and the locking member are respectively located on the two sides of the notches.

[0011] In some embodiments, the suspension connecting rod is in the shape of U, the two ends of the opening of the U-shaped are the two connecting ends, and the other end of the U-shaped opposite to the two ends of the opening is the clamping end.

[0012] In some embodiments, the suspension connecting rod is rotatable relative to the first body and the second body, and the line connecting the clamping end and the notch is in a vertical direction.

[0013] In some embodiments, the first body and the second body are hinged at the connecting portion.

[0014] In some embodiments, a sleeve is further included, the sleeve is arranged in the notch, and the sleeve is used to match the clamping point of the rod-type oil pump.

[0015] In some embodiments, at least two first locking members are further included, the first locking members are respectively connected to the first body and the second body, and the first locking members fix the sleeve to the notch.

[0016] In some embodiments, a fastener is further included, a through hole is arranged on the surface of the first body or the second body, and the fastener is connected to the locking member through the through hole.

[0017] In some embodiments, a second locking member is further included, and the second locking member connects the suspension connecting rod to the first body and the second body.

[0018] In some embodiments, a connecting member is further included, and the connecting member is arranged at the connecting portion and connects the first body and the second body.

[0019] According to the above technical solution, the application has the following beneficial effects:

[0020] The application clamps the clamping point of the rod-type oil pump through the notch, realizes the connection and fixation of the first body, the second body and the clamping point by rotating the first body and the second body, locks the first body and the second body through the locking member, forms a stable connection with the clamping point, and completes the lifting and lowering operation of the rod-type oil pump through the suspension connecting rod and the lifting device. The clamping point is separated from the lifting device by the suspension connecting rod and is operated, the application can effectively clamp the super-long rod-type pump, quickly and safely lift and lower the super-long rod-type pump, avoid affecting the body and the pull rod of the rod-type pump, effectively improve the lifting and lowering efficiency and safety, and prolong the maintenance period. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be simply introduced one by one below, and obviously, the drawings in the following description are some embodiments of the application, and other embodiments and drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0022] Figure 1 An embodiment schematic view of the lifting tool of the rod-type oil pump is shown.

[0023] 10, a running and pulling tool; 11, a first body; 12, a second body; 13, a locking piece; 14, a suspension connecting rod; 15, a clamping sleeve; 16, a fastener; 17, a first locking piece; 18, a second locking piece; 19, a connecting piece. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture. If the specific posture is changed, the directional indications are also changed accordingly.

[0026] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0028] The present application will be described below with reference to the drawings and specific embodiments:

[0029] Please refer to Figure 1The embodiment of the present application provides a rod type oil well pump lifting tool 10 which is suspended and operated through a lifting device, comprising a first body 11, a second body 12, a locking part 13 and a suspension connecting part 19, the first body 11 and the second body 12 are block-shaped or sheet-shaped, the first body 11 and the second body 12 have mutually adhered sides, the sides are used for adhering when being connected with the rod type oil well pump, the sides of the first body 11 and the second body 12 are respectively provided with opposite notches, the notches are used for clamping the clamping points of the rod type oil well pump, the notches are matched with the clamping points in shape, so that the first body 11 and the second body 12 can be fixed from two sides after being adhered by the sides, the first body 11 and the second body 12 are detachably connected, for example, one end of the first body 11 is hinged with the second body 12, and the other end is locked and fixed through the locking part 13, for example, the two ends of the first body 11 and the second body 12 need to be fixed through the locking part 13, the locking part 13 is connected to the first body 11 and the second body 12, and is used for locking the first body 11 and the second body 12, for example, the first body 11 and the second body 12 are both provided with through holes, the locking part 13 passes through the corresponding through holes to connect the first body 11 and the second body 12, the locking part 13 can be a bolt or other parts which are convenient to detach, the suspension connecting rod 14 has two connecting ends and a clamping end, for example, the suspension connecting rod 14 is branched into two at one end connected with the first body 11 and the second body 12, and the two connecting ends are connected to the first body 11 and the second body 12 respectively, and the other end of the suspension connecting rod 14 is used as the clamping end, the clamping end is used for connecting the lifting device, and the clamping end can be annular, semi-annular or other shapes which are convenient to connect with the lifting device.

[0030] The prior art does not have a tool suitable for assisting in lifting the super-long rod type pump, the existing steel wire suspension will damage the corrosion layer of the super-long rod type pump, the existing lifting rod will cause the lifting rod to be bent and deformed, and the existing pipe wrench will cause the rod type pump to be deformed to different degrees, affect the pump efficiency or cause the super-long rod type pump to be stuck, and therefore the prior art is not convenient for assisting in lifting the super-long rod type pump. The present application clamps the clamping points of the rod type oil well pump through the notches, connects and fixes the first body 11 and the second body 12 with the clamping points by rotating the first body 11 and the second body 12, locks the first body 11 and the second body 12 through the locking part 13, forms a stable connection with the clamping points, and finally uses the suspension connecting rod 14 to be lifted by the lifting device to complete the lifting operation of the rod type oil well pump, and the suspension connecting rod 14 is used to separate the clamping points from the lifting device and operate, so that the present application can effectively clamp the super-long rod type pump, quickly and safely lift the super-long rod type pump, avoid affecting the body and the lifting rod of the rod type pump, effectively improve the lifting efficiency and safety, and prolong the maintenance period.

[0031] In some embodiments, the first body 11 and the second body 12 are connected at the connection, and the locking member 13 is located on both sides of the notch, so that the first body 11 and the second body 12 are stably connected at one end of the first body 11 and the second body 12, and are connected by the locking member 13 at the other end, and the clamping point is fixed between the two ends, thereby stably connecting with the rod pump; the first body 11 and the second body 12 are both shaped with a width smaller at both ends than in the middle, and the notch is located at the middle, so that the first body 11 and the second body 12 at the notch have a certain thickness, facilitating the fixation of the clamping point and having a certain structural strength.

[0032] In some embodiments, the suspension connecting rod 14 is in the shape of a U, specifically an inverted U shape as shown in the figure, the two ends of the opening of the U are two connecting ends, and the other end of the U opposite to the two ends of the opening is a clamping end, the two connecting ends can be connected with the first body 11 and the second body 12 by the second locking member 18, and the clamping end can be in the shape of a half ring, which can be connected with the hook or other parts of the suspension device. In some embodiments, the suspension connecting rod 14 is rotatable relative to the first body 11 and the second body 12, and the line connecting the clamping end and the notch is in the vertical direction, so as to facilitate the adjustment of the position of the suspension connecting rod 14 when suspended. In some embodiments, the second locking member 18 is further included, which connects the suspension connecting rod 14 with the first body 11 and the second body 12, respectively, such as the end of the connecting end being provided with a through hole, and the first body 11 and the second body 12 being provided with an ear seat on the opposite side, the ear seat also being provided with a corresponding hole, the second locking member 18 being a locking pin or a pin shaft, and the two connecting ends being fixed to the side of the first body 11 and the second body 12 by the second locking member 18 passing through the above-mentioned hole and the through hole, so that the suspension connecting rod 14 can rotate relative to the first body 11 and the second body 12, in order to facilitate the adjustment of the position when suspended.

[0033] In some embodiments, the first body 11 and the second body 12 are hinged at the connection, such as one end of the first body 11 and the second body 12 being hinged, the hinge being used at the hinge position, and the other end of the first body 11 and the second body 12 being detachably connected by the locking member 13. In some embodiments, the connecting member 19 is further included, which is arranged at the connection and connects the first body 11 and the second body 12, the connecting member 19 being a bolt, one end of the second body 12 being provided with a bayonet, one end of the second body 12 being clamped into the bayonet, and the first body 11 and the second body 12 being provided with a hinge hole at the bayonet, the first body 11 and the second body 12 being connected by the bolt passing through the hinge hole, thereby forming the hinge.

[0034] In some embodiments, the running and pulling tool 10 further comprises a sleeve 15 arranged in the recess, the sleeve 15 is used to match the card point of the rod pump, the sleeve 15 can be divided into two halves, one half is embedded in the recess of the first body 11, and the other half is embedded in the recess of the second body 12, the recess is arranged as a semicylindrical groove, and the two recesses form a cylindrical shape after being opposite to each other, the outer wall of the sleeve 15 matches the recess, and the inner wall of the sleeve 15 is concave to form a semicylindrical groove matching the card point, so that after the first body 11 and the second body 12 are fixedly connected, the sleeve 15 is fixedly connected around the card point.

[0035] In some embodiments, the running and pulling tool 10 further comprises at least two first locking members 17, the plurality of first locking members 17 are respectively connected to the first body 11 and the second body 12, and the first locking member 17 fixes the sleeve 15 to the recess, for example, the first body 11 and the second body 12 are provided with threaded holes at the periphery of the sleeve 15, the first locking member 17 adopts a screw, and a stable nail can also be adopted, the end of the first locking member 17 is exposed to the first body 11 or the second body 12, so that the first locking member 17 is connected to the threaded hole after the sleeve 15 is fixed, and the sleeve 15 is fixed. In some embodiments, the running and pulling tool 10 further comprises a fastener 16, the first body 11 or the second body 12 is provided with a through hole communicating with the surface thereof, and the fastener 16 is connected to the locking member 13 through the through hole, for example, the first body 11 is provided with a through hole from the position of the connection of the locking member to the surface, and one end of the locking member is also provided with a corresponding hole, so that when the locking member connects the first body 11 and the second body 12, one end of the locking member is arranged in the through hole, and the fastener 16 is used to pass through the hole and the through hole to connect the locking member and the first body 11, and the fastener 16 can adopt a pin or a pin shaft, so that the first body 11 and the second body 12 can be more stably connected.

[0036] When the well repair operation needs to be carried out by using the super-long rod pump, the locking member 13 is opened, the sleeve 15 corresponding to the model of the super-long rod pump is selected, the first body 11 and the second body 12 are installed at the card point of the super-long rod pump and are tightened, the super-long rod pump body is hung above the well mouth through the traveling block and the hook, the super-long rod pump is slowly lowered into the well until the running and pulling tool 10 is seated at the well mouth, the suspension connecting rod 14 is removed at the hook, the rod elevator is replaced, at this time, the top of the super-long rod pump is seated at the well mouth under the action of the running and pulling tool 10, the super-long rod pump rod is lifted by using the rod elevator, until the rod is completely lifted out to drive the super-long rod pump body, the super-long rod pump special elevator is separated from the well mouth, the locking member 13 is opened, and the first body 11 and the second body 12 are disassembled, and then the rod string and other structures are normally lowered.

[0037] When the workover operation needs to pull out the super-long rod pump, the traveling block and the hook use the sucker rod hanger to pull up the super-long rod pump rod to the super-long rod pump body hanger point, then open the locking part 13, select the sleeve 15 corresponding to the super-long rod pump model, install the first body 11 and the second body 12 at the super-long rod pump hanger point, and tighten the locking part 13, then lower the rod into the super-long rod pump, at the same time, the super-long rod pump hanger is seated at the wellhead, the super-long rod hanger is removed at the hook, the suspension connecting rod 14 is replaced, the super-long rod pump body is pulled up above the wellhead, the super-long rod pump is guided to the pipe bridge position by the ground staff, the suspension connecting rod 14 is removed at the traveling block hook, the locking part 13 is opened, and the first body 11 and the second body 12 are removed.

[0038] The above tool can be used to pull up the super-long rod pump when the wellhead is high and the workover rig derrick height does not meet the conditions for pulling up the super-long rod pump, and is suitable for assisting in pulling up the super-long rod pump in workover operation, reducing the risk of downhole drop, reducing the damage to the super-long rod pump body, reducing the personnel safety hazard, effectively improving the operation efficiency, and indirectly prolonging the workover period. The present application also has the following advantages:

[0039] (1) The hanger point of the tool is the valve rod guide sleeve of the rod pump body, which shortens the conventional rod pump lifting stroke by about 50% during the lifting and lowering of the rod pump, greatly reducing the adverse effects on the rod pump body and the rod during the lifting and lowering process;

[0040] (2) After using the tool, the dependence on the wellhead operator is smaller than that of the conventional rod pump, thereby reducing the risk of object impact;

[0041] (3) After using the tool, compared with the lifting ring composed of steel wire, the risk of rod pump falling into the well is eliminated during the lifting and lowering process, and the anticorrosion layer of the rod pump can be ensured not to be damaged;

[0042] (4) After using the tool, the operation quality and speed are improved during the lifting and lowering of the rod pump compared with the current process, which indirectly prolongs the workover period;

[0043] (5) The tool measures and maps the hanger points of different models (φ32mm, φ38mm, φ44mm) of super-long rod pumps, and only needs to replace the corresponding sleeve 15 to meet the use requirements.

[0044] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", "an optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the description of the specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0045] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0046] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A running and pulling tool for a rod-type oil well pump, characterized by, The operation of suspending by hoisting device includes: The first body (11) and the second body (12) are respectively provided with opposite notches for clamping the clamping points of the rod type oil pump, and the first body (11) and the second body (12) are detachably connected; The locking member (13) is connected to the first body (11) and the second body (12), and the locking member (13) is used for locking the first body (11) and the second body (12); The suspension connecting rod (14) has two connecting ends and a clamping end, and the two connecting ends are respectively connected to the first body (11) and the second body (12), and the clamping end is used for connecting the hoisting device.

2. A rod pump workover tool as defined in claim 1 wherein, The connecting part of the first body (11) and the second body (12) and the locking member (13) are respectively located on both sides of the notch.

3. The tool for running and pulling a rod pump according to claim 1, characterized in that, The suspension connecting rod (14) is U-shaped, and the two connecting ends of the U-shaped opening are respectively the two connecting ends, and the other end of the U-shaped opening opposite to the two connecting ends is the clamping end.

4. The tool for running and pulling a rod pump according to claim 3, characterized in that, The suspension connecting rod (14) is rotatable relative to the first body (11) and the second body (12), and the connecting line of the clamping end and the notch is in the vertical direction.

5. The tool for running and pulling a rod pump according to claim 1, characterized in that, The first body (11) and the second body (12) are hinged at the connecting part.

6. The rod pump tool of claim 1, wherein, It also includes a sleeve (15) provided in the notch, and the sleeve (15) is used to match the clamping point of the rod type oil pump.

7. A rod pump workover tool as defined in claim 6 wherein, It also includes at least two first locking members (17), and a plurality of first locking members (17) are respectively connected to the first body (11) and the second body (12), and the first locking member (17) fixes the sleeve (15) to the notch.

8. The rod pump tool of claim 1, wherein, It also includes a fastener (16), and the first body (11) or the second body (12) is provided with a through hole communicating with the surface thereof, and the fastener (16) is connected with the locking member (13) through the through hole.

9. The rod pump tool of claim 1, wherein, It also includes a second locking member (18), and the second locking member (18) connects the suspension connecting rod (14) to the first body (11) and the second body (12) respectively.

10. The tool for running and pulling a rod pump according to claim 1, characterized in that, It also includes a connecting member (19), and the connecting member (19) is arranged at the connecting part and connects the first body (11) and the second body (12).

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