A side-drilling cementing suspension packer device

Abstract

This invention relates to a sidetracking cementing suspension packer device, belonging to the technical field of downhole tools for oil and gas fields. The invention includes a hanger, a reconnection tubing, and a small rubber plug. The hanger features a second central tube, the lower end of which is connected to the upper end of a suspension sealing sleeve. The lower end of the suspension sealing sleeve is connected to the upper end of a connecting sleeve. A suspension combination seal is provided in the annular groove at the connection between the suspension sealing sleeve and the connecting sleeve. The lower end of the connecting sleeve is connected to the upper end of a locking sleeve. This invention has a large inner diameter and high pressure resistance, improving the overall sealing performance of the tool after reconnection, ensuring subsequent fracturing operations, and achieving the goal of sidetracking well development.

Description

Technical Field

[0001] This invention belongs to the technical field of downhole tools for oil and gas fields, and specifically relates to a sidetracking cementing suspension packer device. Background Technology

[0002] With the continuous development of oil and gas fields, the number of low-yield and inefficient wells is increasing. Faced with pressure to increase and stabilize production, major oilfields are conducting technical research on the treatment of old wells and tapping their production potential. Sidetracking of old wells is an effective means of tapping the production potential of old blocks. Window-opening sidetracking involves creating a window in the upper casing of the old wellbore to drill a new wellbore. Sidetracking of old wells has the advantages of saving resources and reducing costs.

[0003] However, in low-permeability blocks in China where cementing and completion require stratified fracturing, the hangers used have the following problems when the wellbore diameter is small and the tubing string diameter is large: the cementing quality after cementing and completion does not meet the requirements; the reconnection tool seal fails during fracturing, and the reconnection tool is pushed out of the reconnection tube under high pressure, which makes it impossible to fracturing normally in the later stage, affecting the sidetracking development effect, and in severe cases, causing well abandonment. Summary of the Invention

[0004] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a sidetracking well cementing suspension packer device. This invention features a large inner diameter and high pressure resistance, ensuring cementing quality and smooth completion of fracturing operations, thereby achieving the purpose of sidetracking well development.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] This invention provides a side-drilling cementing suspension packer device, comprising a hanger, a reconnection pipe, and a small rubber plug. The hanger includes a second central tube, the lower end of which is connected to the upper end of a suspension sealing sleeve. The lower end of the suspension sealing sleeve is connected to the upper end of a connecting sleeve. A suspension combination seal is provided in the annular groove at the connection between the suspension sealing sleeve and the connecting sleeve. The lower end of the connecting sleeve is connected to the upper end of a locking sleeve.

[0007] The locking sleeve is connected to the first shearing sleeve by a third suspension shear pin. A second locking block is installed in the side groove of the locking sleeve. The lower end of the locking sleeve is fixedly connected to the upper end of the pressure sleeve by the second locking block. The lower end of the pressure sleeve is connected to the rubber plug shaft. A suspension pressure cap, a stop sleeve, and a suspension back cap are connected to the outside of the rubber plug shaft. A pre-placed rubber plug and a small rubber sleeve are sleeved on the outside of the rubber plug shaft. The pre-placed rubber plug is located above the suspension pressure cap. The small rubber sleeve is located between the stop sleeve and the suspension back cap. The outside of the small rubber sleeve is pressed into the locking sleeve. A suspension retaining ring is provided between the suspension pressure cap and the stop sleeve.

[0008] The second central tube is inserted into the reverse buckle connector. The lower end of the reverse buckle connector is threadedly connected to the upper end of the lost glove. The upper end of the lost glove is fixed with a pressure ring by the second suspension scissor pin. The lower end of the lost glove is connected to the upper end of the upper cone. A first locking spring is provided on the inner side of the pressure ring. The first locking spring is locked in one direction with the buckle provided on the outer side of the lost glove.

[0009] The lower end of the upper cone is connected to the upper end of the suspension connecting sleeve. The upper part of the suspension connecting sleeve is provided with a slip. The middle part of the suspension connecting sleeve is fixed with a lower cone by a first locking block. The upper cone surface inside the slip is connected to the lower cone surface of the upper cone. The lower cone surface inside the slip is connected to the upper cone surface of the lower cone. The lower cone is provided with a second locking spring inside. The outer side of the suspension connecting sleeve is provided with a buckle. The second locking spring and the buckle of the suspension connecting sleeve are locked in one direction. The lower end of the suspension connecting sleeve is fixed with a piston by a fourth suspension shear pin. The upper end of the piston is connected to the upper end of the first locking block.

[0010] The upper inner side of the reverse coupling is connected to a first central tube. A positioning groove is opened on the lower outer side of the first central tube. A positioning block is installed in the positioning groove of the first central tube. A small spring is provided in the middle of the positioning block. The positioning block and the reverse coupling are both placed in the return tube. The lower inner side of the return tube is connected to the upper outer side of the pressure ring. The upper part of the return tube is connected and fixed with a reverse sleeve by a first suspension shear pin. A large spring and an anti-rotation pin are provided inside the reverse sleeve. The upper end of the reverse sleeve is connected to the lifting short joint. A felt ring is provided between the reverse sleeve and the lifting short joint. The lower end of the lifting short joint is connected to the upper end of the first central tube. A rubber ring is provided between the lifting short joint and the first central tube.

[0011] The reconnecting cannula includes an upper connector, the lower end of which is connected to the upper end of the cannula connecting sleeve by a reverse snap and fixed by a first cannula shear pin. The lower end of the cannula connecting sleeve is connected to the upper end of the cannula center tube. The upper end of the cannula center tube is fixed with a shearing ring by a second cannula shear pin. Multiple sets of cannula sealing sleeves and multiple sets of cannula combination seals are provided on the outside of the cannula center tube. The cannula sealing sleeves and the cannula combination seals are alternately arranged. Adjacent cannula sealing sleeves and cannula combination seals are separated by a first cannula back cap, a second cannula back cap, and a cannula retaining ring. The first cannula back cap is connected to the second cannula back cap. The retaining ring is placed in a groove provided on the outside of the cannula center tube. A third cannula back cap is connected to the lower end of the cannula center tube. A support sleeve is connected to the lower end of the cannula center tube and fixed by a third cannula shear pin.

[0012] The small rubber stopper includes a skeleton, with a rubber stopper back cap connected to the upper end of the skeleton. A rubber cup, a rubber stopper pressure cap, and a rubber sleeve are provided on the outer side of the skeleton. A rubber sleeve back cap is connected to the lower part of the skeleton. A rubber stopper retaining ring is provided between the rubber stopper pressure cap and the rubber sleeve back cap.

[0013] Furthermore, a protective sleeve is also provided on the outside of the locking sleeve.

[0014] Furthermore, a rubber tube is provided on the outside of the discarding glove.

[0015] Furthermore, both the inner conical surface at the lower end of the upper cone and the inner conical surface at the upper end of the lower cone are provided with dovetail grooves, and the clasp is engaged in the dovetail grooves.

[0016] Furthermore, a large back cap is connected to the lower end of the suspension connecting sleeve.

[0017] Furthermore, a nut is connected to the lower outer side of the first central tube, and the nut is also placed inside the return sleeve.

[0018] Furthermore, a track groove is provided on the outer side of the first central tube, and the anti-rotation pin is fixed in the track groove of the first central tube.

[0019] Furthermore, an elastic sleeve is provided in the outer groove of the support sleeve.

[0020] Furthermore, a guide cap is connected to the lower end of the frame.

[0021] The beneficial effects of the present invention.

[0022] This invention features an optimized design to ensure replacement quality; the inner diameter of the hanger and the reconnection pipe does not affect subsequent operations; it reduces the number of operations caused by inaccurate positioning, improves operational efficiency, and ensures successful reconnection; after the reconnection pipe is reconnected, it forms a seal and locks with the hanger, has a large inner diameter and high pressure resistance, improving the overall sealing performance of the tool after reconnection, ensuring subsequent fracturing operations, and achieving the goal of side-drilling development. Attached Figure Description

[0023] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0024] Figure 1 This is a half-sectional view of the suspension device of the present invention.

[0025] Figure 2 This is the present invention. Figure 1An enlarged schematic diagram of the upper part of the suspension device shown.

[0026] Figure 3 This is the present invention. Figure 1 An enlarged schematic diagram of the middle part of the suspension device shown.

[0027] Figure 4 This is the present invention. Figure 1 An enlarged schematic diagram of the lower part of the suspension device shown.

[0028] Figure 5 This is a half-sectional view of the reconnection cannula of the present invention.

[0029] Figure 6 This is the present invention. Figure 5 The diagram shows an enlarged view of the upper part of the reconnected cannula.

[0030] Figure 7 This is the present invention. Figure 5 The diagram shows an enlarged view of the middle section of the reconnected cannula.

[0031] Figure 8 This is the present invention. Figure 5 The diagram shows an enlarged view of the lower part of the reconnected cannula.

[0032] Figure 9 This is a half-sectional view of the small rubber stopper of the present invention.

[0033] The markings in the diagram are as follows: 1 is the lifting short connector, 2 is the rubber ring, 3 is the felt ring, 4 is the large spring, 5 is the anti-rotation pin, 6 is the first suspension shear pin, 7 is the reverse sleeve, 8 is the return sleeve, 9 is the nut, 10 is the positioning block, 11 is the small spring, 12 is the first center tube, 13 is the reverse coupling, 14 is the second center tube, 15 is the drop glove, 16 is the second suspension shear pin, 17 is the first locking spring, 18 is the pressure ring, 19 is the rubber sleeve, 20 is the upper cone, 21 is the suspension sealing sleeve, 22 is the suspension combination seal, 23 is the slip, 24 is the connecting sleeve, 25 is the lower cone, 26 is the second locking spring, 27 is the first locking block, 28 is the locking sleeve, 29 is the piston, 30 is the second locking block, 31 is the first shear sleeve, 32 is the third suspension shear pin, 33 is the pressure sleeve, 34 is the rubber plug shaft, and 35 is the fourth suspension. 36 is a shearing pin, 37 is a pre-placed rubber plug, 38 is a suspension pressure cap, 39 is a suspension retaining ring, 40 is a small rubber sleeve, 41 is a suspension back cap, 42 is a suspension connecting sleeve, 43 is a retaining sleeve, 44 is a large spare cap, 45 is an upper connector, 46 is the first insertion tube shearing pin, 47 is the insertion tube connecting sleeve, 48 is a shearing ring, 49 is the second insertion tube shearing pin, 50 is the insertion tube sealing sleeve, 51 is the first insertion tube back cap, 52 is the second insertion tube back cap, 53 is the insertion tube retaining ring, 54 is the insertion tube combination seal, 55 is the insertion tube center tube, 56 is the third insertion tube back cap, 57 is the third insertion tube shearing pin, 58 is a support sleeve, 59 is an elastic sleeve, 60 is a rubber plug back cap, 61 is a leather cup, 62 is a skeleton, 63 is a rubber plug pressure cap, 64 is a rubber plug retaining ring, 65 is a rubber sleeve back cap, 66 is a rubber sleeve, and 67 is a guide cap. Detailed Implementation

[0034] As shown in the accompanying drawings, this embodiment provides a side-drilling cementing suspension packer device, including a hanger, a reconnection pipe, and a small rubber plug. The hanger, reconnection pipe, and small rubber plug are used together to achieve different functional requirements of the packer device.

[0035] The hanger includes a second central tube 14, the lower end of which is connected to the upper end of the suspension sealing sleeve 21, the lower end of which is connected to the upper end of the connecting sleeve 24, a suspension combination seal 22 is provided in the annular groove at the connection between the suspension sealing sleeve 21 and the connecting sleeve 24, and the lower end of the connecting sleeve 24 is connected to the upper end of the locking sleeve 28.

[0036] The locking sleeve 28 is connected to the first shear sleeve 31 through the third suspension shear pin 32. A second locking block 30 is installed in the side groove of the locking sleeve 28. The lower end of the locking sleeve 28 is fixedly connected to the upper end of the pressure sleeve 33 through the second locking block 30. The lower end of the pressure sleeve 33 is connected to the rubber plug shaft 34. The outer side of the rubber plug shaft 34 is connected to the suspension pressure cap 38, the retaining sleeve 43 and the suspension back cap 41. The outer side of the rubber plug shaft 34 is fitted with a pre-set rubber plug 37 and a small rubber sleeve 40. The pre-set rubber plug 37 is located above the suspension pressure cap 38. The small rubber sleeve 40 is located between the retaining sleeve 43 and the suspension back cap 41. The outer side of the small rubber sleeve 40 is pressed into the locking sleeve 28. A suspension retaining ring 39 is provided between the suspension pressure cap 38 and the retaining sleeve 43.

[0037] The locking sleeve 28 is also provided with a protective sleeve 36, which serves to protect the pre-installed rubber plug 37 and facilitate installation.

[0038] The pre-placed rubber plug 37 is mounted on the rubber plug shaft 34. The rubber plug shaft 34 is connected to the pressure sleeve 33 by threads. The pressure sleeve 33 has a locking groove on its inner side. The pressure sleeve 33 and the locking sleeve 28 are connected and fixed by the second locking block 30 and the first shearing sleeve 31, so that the pre-placed rubber plug 37 can be fixed inside the hanger.

[0039] The first shear sleeve 31 and the locking sleeve 28 are connected and fixed by the third suspension shear pin 32. Later, by inserting a small rubber plug, the third suspension shear pin 32 on the first shear sleeve 31 is cut off, the second locking block 30 loses support and is retracted, the pressure sleeve 33 and the locking sleeve 28 are unlocked, the rubber plug retaining ring 64 on the small rubber plug is locked with the annular groove on the inner side of the pressure sleeve 33, the small rubber plug is engaged with the pre-placed rubber plug 37, and drills out from the protective sleeve 36.

[0040] The second central tube 14 is inserted into the reverse-locking connector 13. The lower end of the reverse-locking connector 13 is threadedly connected to the upper end of the lost glove 15. The upper end of the lost glove 15 is fixed with a pressure ring 18 by the second hanging scissor pin 16. A rubber tube 19 is provided on the outer side of the lost glove 15. The lower end of the lost glove 15 is connected to the upper end of the upper cone 20. A first locking spring 17 is provided on the inner side of the pressure ring 18. The first locking spring 17 is unidirectionally locked with the buckle provided on the outer side of the lost glove 15.

[0041] The lower end of the upper cone 20 is connected to the upper end of the suspension connecting sleeve 42. The upper part of the suspension connecting sleeve 42 is provided with a slip 23. The middle part of the suspension connecting sleeve 42 is fixed with the lower cone 25 by the first locking block 27. The upper cone surface inside the slip 23 is connected to the lower cone surface of the upper cone 20, and the lower cone surface inside the slip 23 is connected to the upper cone surface of the lower cone 25. The lower inner cone surface of the upper cone 20 and the upper inner cone surface of the lower cone 25 are both provided with dovetail grooves, and the slip 23 is locked in the dovetail grooves.

[0042] The lower cone 25 is provided with a second locking spring 26, and the outer side of the suspension connecting sleeve 42 is provided with a buckle. The second locking spring 26 and the buckle of the suspension connecting sleeve 42 are locked in one direction. The lower end of the suspension connecting sleeve 42 is fixed with a piston 29 by a fourth suspension shear pin 35. The upper end of the piston 29 is connected to the upper end of the first locking block 27. The lower end of the suspension connecting sleeve 42 is connected with a large back cap.

[0043] The upper inner side of the reverse-threaded connector 13 is connected to a first central tube 12. A positioning groove is provided on the lower outer side of the first central tube 12. A positioning block 10 is installed in the positioning groove of the first central tube 12. A small spring 11 is provided in the middle of the positioning block 10. A nut 9 is also connected to the lower outer side of the first central tube 12. The nut 9, positioning block 10 and reverse-threaded connector 13 are all placed in the return sleeve 8. The lower inner side of the return sleeve 8 is connected to the upper outer side of the pressure ring 18. The upper part of the return sleeve 8 is connected to the return sleeve 13. The first suspension shear pin 6 is connected and fixed with a countersleeve 7. The countersleeve 7 is equipped with a large spring 4 and an anti-rotation pin 5. The upper end of the countersleeve 7 is connected to the lifting short connector 1. A felt ring 3 is provided between the countersleeve 7 and the lifting short connector 1. The lower end of the lifting short connector 1 is connected to the upper end of the first central tube 12. A rubber ring 2 is provided between the lifting short connector 1 and the first central tube 12. A track groove is provided on the outside of the first central tube 12. The anti-rotation pin 5 is fixed in the track groove of the first central tube 12.

[0044] During the setting process, the positioning block 10 moves upward, disengaging from the retaining cylinder 8. It is then ejected by the inner small spring 11, causing the positioning block 10 to move downward. The lower groove contacts the upper surface of the retaining cylinder 8, pushing the retaining cylinder 8 and the pressure ring 18 downward to compress the rubber cylinder 19, thus completing the setting process.

[0045] The reconnecting cannula includes an upper connector 45. The lower end of the upper connector 45 is connected to the upper end of the cannula connecting sleeve 47 by a reverse snap and is fixed by a first cannula shear pin 46. The lower end of the cannula connecting sleeve 47 is connected to the upper end of the cannula center tube 55. A shearing ring 48 is fixed to the upper end of the cannula center tube 55 by a second cannula shear pin 49. Multiple sets of cannula sealing sleeves 50 and multiple sets of cannula combination seals 54 are provided on the outside of the cannula center tube 55. The cannula sealing sleeves 50 and the cannula combination seals 54 interlock. Alternatively, adjacent cannula sealing sleeves 50 and cannula combination seals 54 are separated by a first cannula back cap 51, a second cannula back cap 52, and a cannula retaining ring 53. The first cannula back cap 51 and the second cannula back cap 52 are connected. The suspension retaining ring 39 is placed in a groove provided on the outside of the cannula center tube 55. The lower end of the cannula center tube 55 is connected to a third cannula back cap 56. The lower end of the cannula center tube 55 is connected to a support sleeve 58 and fixed by a third cannula shear pin 57.

[0046] The support sleeve 58 of the reconnector has a groove on its outer side, and the elastic sleeve 59 is set on the groove of the support sleeve 58. The reconnector tube 8 of the hanger has a slot on its inner side, and the elastic sleeve 59 of the reconnector tube has a slot on its outer side. When the reconnector tube is inserted into the hanger, the inner inclined surface of the elastic sleeve 59 of the reconnector tube connects with the outer inclined surface of the groove of the support sleeve 58, and the slot of the support elastic sleeve 59 expands out, so that the inner slot of the reconnector tube 8 of the hanger locks with the outer slot of the elastic sleeve 59 of the reconnector tube, thereby locking the hanger and the reconnector.

[0047] The small rubber stopper includes a skeleton 62, with a rubber stopper back cap 60 connected to the upper end of the skeleton 62. A rubber cup 61, a rubber stopper pressure cap 63, and a rubber sleeve 66 are provided on the outer side of the skeleton 62. A rubber sleeve back cap 65 is connected to the lower part of the skeleton 62. A rubber stopper retaining ring 64 is provided between the rubber stopper pressure cap 63 and the rubber sleeve back cap 65. A guide cap 67 is connected to the lower end of the skeleton 62.

[0048] The principles behind each working method are as follows.

[0049] Setting the clamp: After lifting the short-connector 1 to connect the drill string (not shown in the figure), and lowering it to the set position, the piston 29 is pushed upward by dropping a ball into the drill string to shear the fourth suspension shear pin 35. The first clamp block 27 is retracted and released from the lock, pushing the lower cone 25 and the second locking spring 26 upward, while the upper cone 20 moves downward. The slip 23 anchors the inner wall of the casing. At the same time, the lower cone 25, the second locking spring 26, and the suspension connecting sleeve 42 are locked together, and the clamping operation is completed.

[0050] Release: Rotate the tubing forward, relying on the friction between the slip 23 and the inner wall of the casing, lift the shorting connector 1 to drive the first center tube 12, anti-rotation pin 5, anti-rotation sleeve 7, and anti-locking connector 13 to rotate forward, first cutting off the first suspension shear pin 6 between the return sleeve 8 and the anti-rotation sleeve 7, and then disconnecting it from the release sleeve 15 by reverse locking. Lift the tubing up, and the release operation is completed. After confirming the release, put the tubing back and apply a certain load.

[0051] Rubber plug composite replacement: Cement slurry is injected into the pipe to reach the designed amount. Small rubber plugs are then placed to replace the cement slurry in the drill pipe. The small rubber plugs reach the position of the pre-placed rubber plug 37. The insertion ring 53 on the small rubber plug locks with the annular groove on the inner side of the pressure sleeve 33 of the hanger. After the small rubber plug and the pre-placed rubber plug 37 are combined, the third suspension shear nail 32 on the first shear sleeve 31 is cut off. The second locking block 30 is retracted. The pressure sleeve 33 and the locking sleeve 28 are unlocked. The pre-placed rubber plug 37 is drilled out from the protective sleeve 36. The rubber plug composite is in place.

[0052] Setting the seal: By lifting and lowering the tubing string, relying on the friction between the slip 23 and the inner wall of the casing, the short connector 1 is lifted, causing the first central tube 12, positioning block 10, reverse coupling 13, second central tube 14, suspension sealing sleeve 21, connecting sleeve 24, locking sleeve 28, and protective sleeve 36 to move upward first. The positioning block 10 disengages from the return sleeve 8 and expands out by the internal small spring 11. The tubing string moves downward, and the lower groove of the positioning block 10 contacts the upper end face of the return sleeve 8, pushing the return sleeve 8 and pressure ring 18 downward. The second suspension shear pin 16 between the pressure ring 18 and the drop glove 15 is cut first, and then the rubber tube 19 is compressed to expand and seal. At the same time, the pressure ring 18, the first locking spring 17, and the drop glove 15 are locked together, and the setting seal is completed.

[0053] Reconnection: The reconnection tubing connects to the casing string (not shown in the figure). After reaching the set position in the well, the shear ring 48 on the reconnection tubing first contacts the upper end face of the reconnection sleeve 8 of the hanger. After confirming the position, the tubing string length is adjusted. After the tonnage exceeds the set value, the second tubing shear pin 49 between the shear ring 48 of the reconnection tubing and the central tubing 55 of the tubing is cut off. The tubing string continues to be lowered. The outer groove of the elastic sleeve 59 of the reconnection tubing locks with the inner groove of the reconnection sleeve 8 of the hanger. The tubing combination seal 54 and the tubing sealing sleeve 50 of the reconnection tubing are tightly attached to the inner side of the reconnection sleeve 8 of the hanger, and the entire tubing string forms an internal seal. The reconnection work is in place.

[0054] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.

Claims

1. A side-drilling well cementing suspension packer device, comprising a hanger, a return pipe, and a small rubber plug, characterized in that, The hanger includes a second central tube (14), the lower end of which is connected to the upper end of a suspension sealing sleeve (21), the lower end of which is connected to the upper end of a connecting sleeve (24), a suspension combination seal (22) is provided in the annular groove at the connection between the suspension sealing sleeve (21) and the connecting sleeve (24), and the lower end of the connecting sleeve (24) is connected to the upper end of a locking sleeve (28). The locking sleeve (28) is connected to the first shear sleeve (31) via a third suspension shear pin (32). A second locking block (30) is installed in the side groove of the locking sleeve (28). The lower end of the locking sleeve (28) is fixedly connected to the upper end of the pressure sleeve (33) via the second locking block (30). The lower end of the pressure sleeve (33) is connected to the rubber plug shaft (34). The outer side of the rubber plug shaft (34) is connected to a suspension pressure cap (38), a retaining sleeve (43), and a suspension back cap (44). 1) A pre-set rubber plug (37) and a small rubber sleeve (40) are sleeved on the outer side of the rubber plug shaft (34). The pre-set rubber plug (37) is positioned above the suspension cap (38). The small rubber sleeve (40) is positioned between the stop sleeve (43) and the suspension back cap (41). The outer side of the small rubber sleeve (40) is pressed into the locking sleeve (28). A suspension retaining ring (39) is provided between the suspension cap (38) and the stop sleeve (43). The second central tube (14) is inserted into the reverse-fastening connector (13). The lower end of the reverse-fastening connector (13) is threadedly connected to the upper end of the lost glove (15). The upper end of the lost glove (15) is fixed with a pressure ring (18) by the second suspension scissor pin (16). The lower end of the lost glove (15) is connected to the upper end of the upper cone (20). The inner side of the pressure ring (18) is provided with a first locking spring (17). The first locking spring (17) is locked in one direction with the buckle provided on the outer side of the lost glove (15). The lower end of the upper cone (20) is connected to the upper end of the suspension connecting sleeve (42). The upper part of the suspension connecting sleeve (42) is provided with a slip (23). The middle part of the suspension connecting sleeve (42) is fixed with a lower cone (25) by a first locking block (27). The upper cone surface inside the slip (23) is connected to the lower cone surface of the upper cone (20). The lower cone surface inside the slip (23) is connected to the upper cone surface of the lower cone (25). The lower cone (25) is provided with a second locking spring (26). The outer side of the suspension connecting sleeve (42) is provided with a buckle. The second locking spring (26) and the buckle of the suspension connecting sleeve (42) are locked in one direction. The lower end of the suspension connecting sleeve (42) is fixed with a piston (29) by a fourth suspension shear pin (35). The upper end of the piston (29) is connected to the upper end of the first locking block (27). The upper inner side of the reverse-clamping connector (13) is connected to a first central tube (12). A positioning groove is provided on the lower outer side of the first central tube (12). A positioning block (10) is installed in the positioning groove of the first central tube (12). A small spring (11) is provided in the middle of the positioning block (10). The positioning block (10) and the reverse-clamping connector (13) are both placed in the return sleeve (8). The lower inner side of the return sleeve (8) is connected to the upper outer side of the pressure ring (18). The upper part of the tube is connected and fixed with a countersleeve (7) by a first suspension shear pin (6). The countersleeve (7) is provided with a large spring (4) and an anti-rotation pin (5). The upper end of the countersleeve (7) is connected to the lifting short joint (1). A felt ring (3) is provided between the countersleeve (7) and the lifting short joint (1). The lower end of the lifting short joint (1) is connected to the upper end of the first central tube (12). A rubber ring (2) is provided between the lifting short joint (1) and the first central tube (12). The reconnecting cannula includes an upper connector (45), the lower end of which is connected to the upper end of the cannula connecting sleeve (47) by a reverse snap and fixed by a first cannula shear pin (46). The lower end of the cannula connecting sleeve (47) is connected to the upper end of the cannula center tube (55). The upper end of the cannula center tube (55) is fixed with a shearing ring (48) by a second cannula shear pin (49). Multiple sets of cannula sealing sleeves (50) and multiple sets of cannula combination seals (54) are provided on the outside of the cannula center tube (55). The cannula sealing sleeves (50) and the cannula combination seals (54) are connected by a shearing ring (48) and a shearing ring (48) (49) (49). The adjacent insertion tube sealing sleeves (50) and the insertion tube combination seals (54) are separated by a first insertion tube back cap (51), a second insertion tube back cap (52), and an insertion tube retaining ring (53). The first insertion tube back cap (51) is connected to the second insertion tube back cap (52). The retaining ring is placed in a groove provided on the outside of the insertion tube center tube (55). The lower end of the insertion tube center tube (55) is connected to a third insertion tube back cap (56). The lower end of the insertion tube center tube (55) is connected to a support sleeve (58) and fixed by a third insertion tube shear pin (57). The small rubber stopper includes a skeleton (62), with a rubber stopper back cap (60) connected to the upper end of the skeleton (62). A leather cup (61), a rubber stopper pressure cap (63), and a rubber sleeve (66) are provided on the outer side of the skeleton (62). A rubber sleeve back cap (65) is connected to the lower part of the skeleton (62). A rubber stopper retaining ring (64) is provided between the rubber stopper pressure cap (63) and the rubber sleeve back cap (65). The locking sleeve (28) is also provided with a protective sleeve (36); the outer side of the lost glove (15) is provided with a rubber tube (19). An elastic sleeve (59) is provided in the outer groove of the support sleeve (58).

2. The side-drilling cementing suspension packer device according to claim 1, characterized in that, The lower inner conical surface of the upper cone (20) and the upper inner conical surface of the lower cone (25) are both provided with dovetail grooves, and the latch (23) is engaged in the dovetail grooves.

3. The side-drilling cementing suspension packer device according to claim 1, characterized in that, The lower end of the suspension connecting sleeve (42) is connected to a large back cap.

4. A side-drilling cementing suspension packer device according to claim 1, characterized in that, A nut (9) is also connected to the outer side of the lower end of the first central tube (12), and the nut (9) is also placed inside the return tube (8).

5. A side-drilling cementing suspension packer device according to claim 1, characterized in that, A track groove is provided on the outside of the first central tube (12), and the anti-rotation pin (5) is fixed in the track groove of the first central tube (12).

6. A side-drilling cementing suspension packer device according to claim 1, characterized in that, The lower end of the frame (62) is connected to a guide cap (67).

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