Hydraulic drilling-free staged cementing device

Abstract

The application discloses hydraulic drilling-free graded well cementation device, including graded hoop body, the inside of graded hoop body is provided with closing plug, the bottom end of closing plug is provided with primary rubber plug, the side of graded hoop body is provided with cementing hole, the top end of primary rubber plug is equipped with primary rubber plug support ring, the bottom end of graded hoop body is detachably equipped with sliding assembly, the top end of sliding assembly is equipped with driving equipment, the application is provided with sliding assembly, fixed adapter cover and fixed pipe head, by the cooperation of the three, first, the top end of graded hoop body is connected by external connecting line body, then, under the driving of existing technology, graded hoop body gradually advances to the inside of pouring hole, the fixed conical cover at the bottom end of graded hoop body first contacts the inner wall of pouring hole, under the advantage of conical outer surface, graded hoop body freely shuttles in pouring hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cementing equipment, and more particularly to a hydraulic drill-free staged cementing device. BACKGROUND

[0002] The so-called two-stage (staged) cementing process refers to a special cementing tool, a staged collar, and various matching plugs, which are used to divide a long cementing section into two sections for cementing. Staged cementing is mainly a two-stage or multi-stage cementing method used to prevent lost cement slurry and reduce downhole leakage due to a too long cementing section. In staged cementing, the staged collar structure is involved, which is mainly divided into (1) mechanical type: used for vertical wells or wells with an inclination angle less than 25 degrees, which relies on gravity plug to open the circulation hole for two-stage cementing, and has a lower opening pressure, and (2) hydraulic type: used for any well type, which can directly be squeezed without gravity plug to open the circulation hole for two-stage cementing, and has a higher opening pressure. The main difference between two-stage cementing is the use of special plugs and gravity plugs. The sliding hole of the staged collar is first cut to establish circulation, and then the special plug is cut to lock the pin to make the sliding sleeve fall to close the circulation hole, thereby avoiding the process of perforating cementing paste holes.

[0003] However, in actual use, it still has some disadvantages, such as: the existing hydraulic staged collar needs to be extended downward along the pre-drilled hole to the bottom of the ground, and the cement grouting cementing operation is performed under suitable pressure and position conditions. When grouting for two-stage cementing in deviated wells and horizontal wells, the direction in the deviated well changes gradually when the sliding collar is lowered, and when the angle changes greatly, the staged collar collides with the drilling hole and is obliquely rubbed, thereby hindering the further movement of the staged collar and causing the staged collar to be blocked in the drilling hole, affecting the continuation of the cementing work.

[0004] Therefore, based on the above problems, the inventor has improved the existing structure and deficiencies by drawing on many years of experience in the design, development, and actual production of the related industry, and provided a hydraulic drill-free staged cementing device, so as to achieve a more practical value. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiment of the present application provides a hydraulic drilling-free staged well cementing device, by setting the sliding assembly, the fixed adapter cover and the fixed pipe head, and by utilizing the cooperation of the three, first, the operator carries out normal debugging and inspection of the sliding assembly and the driving device, then the external connecting line body connects the top end of the staged collar body, then the staged collar body is placed in the drilled perfusion deep hole, then the staged collar body gradually advances to the inside of the perfusion hole under the existing technology driving, at this time the fixed conical cover at the bottom end of the staged collar body first contacts the inner wall of the perfusion hole, under the beneficial effect of the conical outer surface, the staged collar body is driven to shuttle freely inside the perfusion hole, reducing the probability of jamming and blocking of the staged collar body in the inner wall of the perfusion deep hole, ensuring the normal operation of the equipment, by setting the driving device, the fixed circular cylinder and the fixed adapter cover, and by utilizing the cooperation of the three, when the staged collar body advances to a bend or a position where it is not easy to advance due to the roughness of the inner wall of the perfusion hole, the internal micro motor is started, then driving the rotation of the driving shaft, at this time the driving shaft drives the rotation of the driving gear at the bottom end, the driving gear drives the rotation of the fixed teeth meshing on the side, and then drives the rotation of the fixed sleeve around the outside of the fixed circular cylinder, then the sliding collision contact between the driving block on the outside of the fixed sleeve and the convex strip plate on the inner wall of the fixed sleeve causes the fixed sleeve and the fixed adapter cover at the top end to vibrate with small amplitude, so that the staged collar body is continuously vibrated and collided with the external contact environment, so that the jammed part of the staged collar body is shifted and adjusted, so that the staged collar body is freed from the narrow perfusion hole, and the staged collar body can smoothly pass through the slope bend inside the perfusion hole, further improving the practicability of the device, to solve the problems raised in the above background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a hydraulic drilling-free staged well cementing device, comprising a staged collar body, a closing plug is arranged inside the staged collar body, a first rubber plug is arranged at the bottom end of the closing plug, a cementing hole is arranged on the side of the staged collar body, a first rubber plug support ring is arranged on the top end of the first rubber plug, and a sliding assembly is detachably arranged at the bottom end of the staged collar body;

[0007] A driving device is arranged at the top end of the sliding assembly, a fixed adapter cover is arranged at the top end of the driving device, a fixed pipe head is connected to the bottom end of the staged collar body, and a fixed circular cylinder is sleeved to the bottom end of the staged collar body.

[0008] In one preferred embodiment, the sliding assembly comprises a fixed conical cover, the top end of which is embedded with mounting arc-shaped plates at equal intervals in the circumferential direction, the outer side of the mounting arc-shaped plates is provided with sliding notches, the surface of the mounting arc-shaped plates is detachably sleeved with a fixed sleeve plate, the outer surface of the fixed conical cover is a smooth surface, and the overall material of the fixed conical cover is alloy steel material.

[0009] In one preferred embodiment, the inner wall side of the fixed sleeve plate is embedded with a sliding cylinder, the shape of the sliding cylinder and the sliding notch are mutually adapted, the outer surface of the sliding notch is coated with a layer of lubricating grease, the shape of the sliding notch is adapted to the fixed circular cylinder, and the side surface of the sliding notch is in contact with the surface of the fixed circular cylinder.

[0010] In one preferred embodiment, the outer surface of the fixed sleeve plate is detachably sleeved with a fixed circular sleeve, the overall material of the fixed circular sleeve is alloy material, the inner wall surface of the fixed circular sleeve is smooth, the top end of the fixed circular sleeve is in contact with the bottom end of the driving device, and the top end of the fixed circular sleeve and the bottom surface of the driving device are distributed on the same horizontal plane.

[0011] In one preferred embodiment, the driving device comprises a fixed sleeve, the inner wall surface of the fixed sleeve is provided with mounting arc-shaped plates at equal intervals in the circumferential direction, the inside of the fixed sleeve is provided with an internal notch, the bottom end of the fixed sleeve is embedded with a fixed bottom end supporting plate, and the cross-sectional shape of the convex strip plate is semicircular.

[0012] In one preferred embodiment, the bottom end of the fixed sleeve is provided with mounting blocks at equal intervals in the circumferential direction, the top end of the fixed bottom end supporting plate is provided with a bayonet, the shape of the bayonet and the mounting block are mutually adapted, the overall shape of the mounting block is triangular, the top end of the fixed sleeve is in contact with the bottom end of the fixed adapter cover.

[0013] In one preferred embodiment, the top end of the fixed bottom end supporting plate is placed with a fixed sleeve ring, the surface of the fixed sleeve ring is provided with a toggle block, the top end of the fixed sleeve ring is provided with fixed teeth at equal intervals, and the side surface of the toggle block is in contact with the inner wall surface of the fixed sleeve.

[0014] In a preferred implementation, the outer side of the hierarchical hoop body is sleeved with a connecting top plate, the bottom end of the connecting top plate is detachably sleeved with a micro motor, the bottom end of the micro motor is inlaidly connected with a driving shaft, the bottom end of the driving shaft is fixedly sleeved with a driving gear, the bottom end of the driving shaft is detachably sleeved with a limiting sleeve ring, the side surface of the driving gear is meshingly connected with the fixed teeth, the surface of the driving gear is smooth, the driving gear and the fixed teeth are integrally made of alloy material, and the inside of the limiting sleeve ring is sleeved with the outside surface of the fixed circular cylinder.

[0015] In a preferred implementation, the inside of the driving gear is provided with a fixed groove matched with the driving shaft, the inner wall surface of the limiting sleeve ring is smooth, the bottom end of the driving gear is arranged on the same horizontal plane with the top end of the limiting sleeve ring, and the thickness of the driving gear is 1-3 mm.

[0016] The technical effects and advantages of the present application are as follows:

[0017] The present application is provided with a sliding assembly, a fixed adapter cover and a fixed pipe head, which cooperate with each other. First, the operator performs normal debugging and inspection of the sliding assembly and the driving device, then connects the top end of the hierarchical hoop body with the external connecting line, and then places the hierarchical hoop body in the prepared deep hole for pouring. Then, under the existing technical driving, the hierarchical hoop body gradually advances towards the inside of the pouring hole. At this time, the fixed conical cover at the bottom end of the hierarchical hoop body first contacts the inner wall surface of the pouring hole. Under the favorable effect of the conical outer surface, the hierarchical hoop body freely shuttles inside the pouring hole, reducing the probability of jamming and blocking of the hierarchical hoop body in the pouring hole, and ensuring the normal operation of the equipment.

[0018] The present application is provided with a driving device, a fixed circular cylinder and a fixed adapter cover, which cooperate with each other. When the hierarchical hoop body advances to a position where it is difficult to advance due to a bend or rough inner wall of the pouring hole, the internal micro motor is started, then drives the driving shaft to rotate. At this time, the driving shaft drives the driving gear at its bottom end to rotate, adjusts the driving gear to drive the fixed teeth meshing with its side surface to rotate, and then drives the fixed sleeve ring as a whole to rotate around the outside of the fixed circular cylinder. Then, the sliding block on the outside of the fixed sleeve ring and the convex strip plate on the inner wall surface of the fixed sleeve slide against each other, causing the fixed sleeve and the fixed adapter cover at its top end to vibrate with small amplitude. Thus, the hierarchical hoop body is continuously vibrated and collided with the external contact environment, so that the position of the hierarchical hoop body that is jammed is shifted and adjusted, so that the hierarchical hoop body is freed from the narrow pouring hole and can smoothly pass through the slope bend inside the pouring hole, further improving the practicability of the device.

[0019] The present application sets the convex strip plate, the poking block and the fixed sleeve and the fixed sleeve ring, utilizes the mutual cooperation of the three, utilizes the cross section shape of the convex strip plate being semicircular shape, so that the side surface of the poking block and the inner wall surface of the fixed sleeve are matched and arranged and then slide, can collide with the convex strip plate, so as to facilitate the collision of the convex strip plate when sliding, and the two pieces are not easy to jam. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of the present application;

[0021] Figure 2 It is the half section structure schematic diagram of the present application;

[0022] Figure 3 It is the assembly structure schematic diagram of the present application;

[0023] Figure 4 It is the assembly structure schematic diagram of the present application;

[0024] Figure 5 It is the assembly structure schematic diagram of the present application;

[0025] Figure 6 It is the overall structure schematic diagram of the present application;

[0026] Figure 7 It is the overall structure schematic diagram of the present application; Figure 6 It is the enlarged structure schematic diagram of A of the present application.

[0027] The figure mark is: 1, hierarchical hoop body; 2, closing plug; 3, primary rubber plug; 4, cementing hole; 5, primary rubber plug support ring; 6, sliding assembly; 7, fixed adapter cover; 8, driving device; 9, fixed pipe head; 10, fixed circular cylinder; 61, fixed conical cover; 62, installation arc plate; 63, sliding notch; 64, fixed sleeve plate; 65, sliding cylinder; 66, fixed circular sleeve; 81, fixed sleeve; 82, convex strip plate; 83, internal notch; 84, fixed bottom end support plate; 85, installation block; 86, bayonet; 87, fixed sleeve ring; 88, poking block; 89, fixed tooth; 891, connecting top plate; 892, micro motor; 893, driving shaft; 894, driving gear; 895, fixed groove; 896, limiting sleeve ring. DETAILED DESCRIPTION

[0028] Clearly, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0029] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 7 The hydraulic drilling-free staged cementing device shown in the accompanying drawings comprises a staged collar body 1, the inside of the staged collar body 1 is provided with a closing plug 2, the bottom end of the closing plug 2 is provided with a first-stage rubber plug 3, the side of the staged collar body 1 is provided with a cementing hole 4, the top end of the first-stage rubber plug 3 is sleeved with a first-stage rubber plug supporting ring 5, and the bottom end of the staged collar body 1 is detachably sleeved with a sliding assembly 6.

[0030] The top end of the sliding assembly 6 is sleeved with a driving device 8, the top end of the driving device 8 is sleeved with a fixed adapter cover 7, the bottom end of the staged collar body 1 is connected with a fixed pipe head 9, and the bottom end of the staged collar body 1 is connected with a sleeved fixed circular cylinder 10.

[0031] The sliding assembly 6 comprises a fixed conical cover 61, the top end of which is embedded with an installation arc-shaped plate 62 distributed at equal intervals in the circumferential direction, the outer surface of the installation arc-shaped plate 62 is provided with a sliding slot 63, the surface of the installation arc-shaped plate 62 is detachably sleeved with a fixed sleeve plate 64, the outer surface of the fixed conical cover 61 is a smooth surface, the overall material of the fixed conical cover 61 is alloy steel material, the inner wall surface of the fixed sleeve plate 64 is embedded with a sliding cylinder 65, the shape of the sliding cylinder 65 and the sliding slot 63 is adapted to each other, the outer surface of the sliding slot 63 is coated with a layer of lubricating oil, the shape of the sliding slot 63 is adapted to the fixed circular cylinder 10, the side surface of the sliding slot 63 is in contact with the surface of the fixed circular cylinder 10, the outer surface of the fixed sleeve plate 64 is detachably sleeved with a fixed circular sleeve 66, the overall material of the fixed circular sleeve 66 is alloy material, the inner wall surface of the fixed circular sleeve 66 is smooth, the top end of the fixed circular sleeve 66 is in contact with the bottom end of the driving device 8, the top end of the fixed circular sleeve 66 and the bottom surface of the driving device 8 are distributed on the same horizontal plane, the bottom end of the fixed sleeve 81 is provided with an installation block 85 distributed at equal intervals in the circumferential direction, the top end of the fixed bottom end supporting plate 84 is provided with a bayonet 86, the shape of the bayonet 86 and the installation block 85 is adapted to each other, the overall shape of the installation block 85 is triangular, the top end of the fixed sleeve 81 is in contact with the bottom end of the fixed adapter cover 7, the top end of the fixed bottom end supporting plate 84 is placed with a fixed sleeve ring 87, the surface of the fixed sleeve ring 87 is provided with a poking block 88, the top end of the fixed sleeve ring 87 is provided with a fixed tooth 89 distributed at equal intervals, the side surface of the poking block 88 is in contact with the inner wall surface of the fixed sleeve 81, the inner surface of the driving gear 894 is provided with a fixed groove 895 adapted to the driving shaft 893 at the center, the inner wall surface of the limiting sleeve ring 896 is smooth, the bottom end of the driving gear 894 and the top end of the fixed sleeve ring 87 are arranged on the same horizontal plane, the thickness of the driving gear 894 is one to three millimeters.

[0032] With reference to the drawings accompanying the specification, Figures 3-6 The driving device 8 comprises a fixed sleeve 81, the inner wall surface of which is provided with an installation arc-shaped plate 62 distributed at equal intervals in the circumferential direction, the inside of the fixed sleeve 81 is provided with an internal slot 83, the bottom end of the fixed sleeve 81 is embedded with a fixed bottom end supporting plate 84, the cross-sectional shape of the convex strip plate 82 is semicircular.

[0033] The embodiment is specific: the cross-sectional shape of the convex strip plate 82 is semicircular, and the side surface of the poking block 88 is in close contact with the inner wall surface of the fixed sleeve 81. First, the fixed ring 87 rotates as a whole around the outside of the fixed circular cylinder 10, and then the poking block 88 on the outside of the fixed ring 87 and the convex strip plate 82 on the inner wall surface of the fixed sleeve 81 slide against each other, so that the fixed sleeve 81 and the fixed adapter cover 7 at the top end thereof vibrate at a small amplitude and a high frequency as a whole, thereby facilitating the separation of the grading hoop body 1 from the deep hole during pouring.

[0034] Specifically refer to the drawings Figures 5-7 The outer side of the grading hoop body 1 is sleeved with a connecting top plate 891, the bottom end of the connecting top plate 891 is detachably sleeved with a micro motor 892, the bottom end of the micro motor 892 is inlaidly connected with a driving shaft 893, the bottom end of the driving shaft 893 is fixedly sleeved with a driving gear 894, the bottom end of the driving shaft 893 is detachably sleeved with a limiting ring 896, the side surface of the driving gear 894 and the fixed tooth 89 are in meshing connection with each other, the surface of the driving gear 894 is smooth, the driving gear 894 and the fixed tooth 89 are both made of alloy material, and the inside of the fixed ring 87 and the outer surface of the fixed circular cylinder 10 are in mutual sleeving.

[0035] The embodiment is characterized in that: the driving gear 894 and the fixed tooth 89 are made of alloy material, which has the following advantages: 1. high strength: for example, the density of titanium alloy is generally about 4.51 g / cm3, which is only 60% of that of steel, and the density of pure titanium is close to that of ordinary steel, and some high-strength titanium alloys exceed the strength of many alloy structural steels; 2. high thermal strength: for example, the service temperature is several hundred degrees higher than that of aluminum alloy, and the required strength can be maintained at medium temperature, and the two types of titanium alloy can work at a temperature of 450-500°C for a long time. The specific strength of the aluminum alloy is significantly reduced at 150°C; 3. good corrosion resistance: for example, the corrosion resistance of titanium alloy in humid atmosphere and seawater medium is much better than that of stainless steel; the resistance to pitting corrosion, acid corrosion and stress corrosion is particularly strong; 4. good low-temperature performance: for example, titanium alloy can maintain its mechanical properties at low temperature and ultra-low temperature; 5. high chemical activity: for example, titanium has high chemical activity and reacts strongly with O, N, H, CO, CO2, water vapor and ammonia in the atmosphere. When the carbon content is greater than 0.2%, Tic hard phase will be formed in the titanium alloy, and the like. The generation of the alloy often improves the properties of the elemental substance, for example, the strength of steel is greater than that of its main component element iron. The physical properties of the alloy, such as density, reactivity, Young's modulus, electrical conductivity and thermal conductivity, may be similar to those of the constituent elements of the alloy, but the tensile strength and shear strength of the alloy are usually very different from those of the constituent elements. This is because the atomic arrangement in the alloy and the single element is very different, and a small amount of a certain element can greatly affect the properties of the alloy. For example, impurities in ferromagnetic alloys can change the properties of the alloy. Unlike pure metals, most alloys do not have a fixed melting point, and when the temperature is in the melting temperature range, the mixture is in a solid-liquid coexistence state.

[0036] The working principle of the present application is as follows:

[0037] Step 1: First, the operator normally assembles all the components of the device, and then normally starts the device.

[0038] Second step: first, the operator will slide assembly 6 and drive device 8 normal debugging and checking work, then the external connection line body will be connected to the top of the hierarchical hoop body 1, then the hierarchical hoop body 1 is placed in the whole prepared perfusion deep hole, then the hierarchical hoop body 1 under the existing technology drive, gradually to the inside of the perfusion hole, the fixed conical cover 61 at the bottom of the hierarchical hoop body 1 first contact to the inner wall of the perfusion hole, under the beneficial effect of the conical outer surface, drive the hierarchical hoop body 1 in the perfusion hole inside shuttle, when the hierarchical hoop body 1 advances to the bend or because the perfusion hole inner wall rough and not easy to advance the position, its internal micro motor 892 start, then drive the shaft 893 rotation, when the drive shaft 893 drive gear 894 rotation at the bottom of it, adjust the drive gear 894 drive its side meshing fixed tooth 89 rotation, in turn drive the fixed sleeve 87 as a whole around the fixed circular cylinder 10 outside rotation work, then use the fixed sleeve 87 outside the toggle block 88 and the fixed sleeve 81 inner wall surface convex strip plate 82 between each other sliding collision contact, make its fixed sleeve 81 and its top fixed adapter cover 7 whole amplitude small high frequency vibration, so that the hierarchical hoop body 1 continuously contact the outside environment between the vibration collision, so that the hierarchical hoop body 1 is stuck in the part of the transformation displacement and adjustment, so that the hierarchical hoop body 1 from the narrow perfusion hole in trouble, and can guarantee the hierarchical hoop body 1 through the perfusion hole inside the slope bend, so as to complete the protection process of the hierarchical hoop body 1 advancing work, so as to guarantee the normal operation of the hierarchical hoop body 1, namely.

[0039] Third step: first, the operator normally closes the device, then the operator checks whether the fixation between each component of the device is normal, then replaces and maintains the aging and seriously worn parts in the device.

[0040] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0041] Secondly: the drawings of the disclosed embodiments of the application only involve the structures involved in the disclosed embodiments, other structures can refer to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the application can be combined with each other;

[0042] Finally: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A hydraulic, drill-free, staged cementing device, comprising a staged clamp body (1), wherein a shut-off plug (2) is provided inside the staged clamp body (1), a primary rubber plug (3) is provided at the bottom end of the shut-off plug (2), cement injection holes (4) are provided on the side of the staged clamp body (1), and a primary rubber plug support ring (5) is fitted at the top end of the primary rubber plug (3), characterized in that: The bottom end of the graded hoop body (1) is detachably fitted with a sliding component (6). The top of the sliding component (6) is fitted with a driving device (8), the top of the driving device (8) is fitted with a fixed adapter cover (7), the bottom of the graded hoop body (1) is connected to a fixed pipe head (9), and the bottom of the graded hoop body (1) is connected to a fixed circular cylinder (10). The driving device (8) includes a fixed sleeve (81), the inner wall of the fixed sleeve (81) is evenly and equidistantly distributed with convex strips (82) in the outer circumference, the fixed sleeve (81) has an internal groove (83) inside, and a fixed bottom support plate (84) is embedded at the bottom end of the fixed sleeve (81). A fixing ring (87) is placed on the top of the fixed bottom plate (84), and a toggle block (88) is installed on the surface of the fixing ring (87). Fixing teeth (89) are evenly distributed at the top of the fixing ring (87). The outer side of the graded hoop body (1) is fitted with a connecting top plate (891). The bottom end of the connecting top plate (891) is detachably fitted with a micro motor (892). The bottom end of the micro motor (892) is inlaid with a drive shaft (893). The bottom end of the drive shaft (893) is fixedly fitted with a drive gear (894). The side of the drive gear (894) is meshed with the fixed teeth (89).

2. The hydraulic non-drilling staged cementing device according to claim 1, characterized in that: The sliding assembly (6) includes a fixed conical cover (61), and the top of the fixed conical cover (61) is circumferentially and equidistantly connected with mounting arc plates (62). The outer side of the mounting arc plate (62) is provided with a sliding groove (63). The surface of the mounting arc plate (62) is detachably and slidably fitted with a fixed sleeve plate (64). The outer surface of the fixed conical cover (61) is a smooth surface. The entire fixed conical cover (61) is made of alloy steel.

3. The hydraulic non-drilling staged cementing device according to claim 2, characterized in that: The inner wall of the fixed sleeve (64) is inlaid with a sliding cylinder (65). The shape of the sliding cylinder (65) is adapted to the shape of the sliding groove (63). The outer surface of the sliding groove (63) is uniformly coated with a layer of lubricating grease. The shape of the sliding groove (63) is adapted to the fixed cylindrical tube (10). The side of the sliding groove (63) is in close contact with the surface of the fixed cylindrical tube (10).

4. The hydraulic non-drilling staged cementing device according to claim 3, characterized in that: The outer surface of the fixed sleeve plate (64) is detachably fitted with a fixed circular sleeve (66). The fixed circular sleeve (66) is made of alloy material. The inner wall surface of the fixed circular sleeve (66) is smooth. The top of the fixed circular sleeve (66) contacts the bottom of the driving device (8). The top of the fixed circular sleeve (66) and the bottom surface of the driving device (8) are distributed on the same horizontal plane.

5. The hydraulic no-drill staged cementing device according to claim 1, characterized in that: The cross-sectional shape of the convex strip (82) is semi-circular.

6. The hydraulic non-drilling staged cementing device according to claim 1, characterized in that: The bottom end of the fixed sleeve (81) is provided with mounting blocks (85) evenly spaced outwards in the outer circumference. The top end of the fixed bottom support plate (84) is provided with a slot (86). The slot (86) and the shape of the mounting block (85) are adapted to each other. The overall shape of the mounting block (85) is triangular. The top end of the fixed sleeve (81) and the bottom end of the fixed adapter cover (7) are in close contact with each other.

7. The hydraulic no-drill staged cementing device according to claim 1, characterized in that: The side of the actuating block (88) is fitted against the inner wall of the fixed sleeve (81).

8. The hydraulic no-drill staged cementing device according to claim 1, characterized in that: The bottom end of the drive shaft (893) is detachably fitted with a limiting sleeve (896). The inner surface of the drive gear (894) is provided with a fixing groove (895) that matches the drive shaft (893). The inner wall surface of the limiting sleeve (896) is smooth. The bottom end of the drive gear (894) and the top end of the fixing sleeve (87) are set on the same horizontal plane. The thickness of the drive gear (894) is one millimeter to three millimeters.

9. The hydraulic no-drill staged cementing device according to claim 1, characterized in that: The inside of the fixing collar (87) fits onto the outer surface of the fixing cylindrical tube (10).

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