Spiral flow direction type guide structure applied to well cementation engineering

Abstract

The invention relates to the technical field of well cementation engineering, and discloses a spiral flow direction type guide structure applied to the well cementation engineering, which is based on a packer applied to the well cementation engineering, is additionally provided with an external type guide structure aiming at the well descending direction of the packer in the operation process, and is essentially composed of a plurality of groups of dynamic parts. Each dynamic part is composed of a front ferrule, a rear ferrule and a dynamic guide spring frame between the front ferrule and the rear ferrule, and during centralizing and guiding, the front ferrule and the rear ferrule have small-amplitude spiral actions and are opposite in spiral direction, so that when the bending degree of the dynamic guide spring frame is changed by being matched with the shaft environment, the front ferrule and the rear ferrule can move in a small-amplitude spiral manner; through the dynamic switching process, possibly generated stress change is firstly transmitted into the dynamic guide spring frame, the stress change is converted into hydraulic change through a force unloading mode of the middle kinetic energy ring structure, and the rear wing guide ring is changed for auxiliary guide, so that on the basis of achieving the guide purpose, the stress change is converted into hydraulic change through the hydraulic change. And the guiding stability is improved through the multi-angle guiding process.

Description

Technical Field

[0001] The invention relates to the technical field of cementing engineering, and in particular to a spiral flow-direction guide structure used in cementing engineering. Background Art

[0002] The cementing project mainly includes two key technologies: pipe laying and grouting. The grouting technology can refer to the relevant contents in publication numbers CN108119093A and CN116163673A. Here, the pipe laying technology is specifically explained, and the specific contents can refer to publication numbers CN102454381A and CN111894512A.

[0003] The additional explanation for the pipe lowering technology is that it is mainly based on packers and floating collars, in which the packers mainly play two key roles of separation and sealing, and a supporting structure is provided to maintain the center position of the packers relative to the wellbore. However, the wellbore environment is relatively complex (complex wellbore trajectory), such as the wellbore of large displacement wells and large inclined wells, and the conventional supporting structure is relatively simple, as mentioned in CN113286931A and CN110043199A. The essence of the straightening process is to "forcefully change" the central position of structures such as casing relative to the wellbore according to the wellbore wall. However, due to the complex wellbore environment, a large friction occurs between the rib plate or clamping ring structure at a certain position in the straightener and the wellbore wall, while another position may be out of contact with the wellbore wall. In this state, the movement stability of structures such as casing and packer when lowered into the well is directly affected. Specifically, the casing and packer experience non-directional swinging due to the straightening process generated by the straightener and the wellbore, and even the abnormal problem of the straightener being directly stuck in the wellbore occurs. The present invention proposes a solution to this problem. Summary of the invention

[0004] The purpose of the present invention is to provide a spiral flow type guide structure used in cementing engineering to solve the following problems: With respect to the pipe lowering technology in cementing engineering, and specifically with respect to the straightening process in the pipe lowering technology, conventionally, a directional designed straightener structure is mainly used to achieve the purpose of "forced guidance". However, due to the complexity of the wellbore environment, the straightening effect produced by the straightener will directly affect the movement stability of structures such as casings and separators when they are lowered into the well, such as non-directional swinging movement, or even a serious engineering accident in which the straightener is stuck in the wellbore.

[0005] The object of the present invention can be achieved by the following technical scheme: a spiral flow type guide structure used in cementing engineering is used in a packer in cementing engineering, the spiral flow type guide structure is installed at one end of the packer, and includes an installation sleeve, a front ring, a rear ring, a dynamic guide spring frame and a rear oil ring; The front ring, the rear ring and the installation sleeve are threadedly connected, and a ball head rod is arranged on the outer wall of the front ring and the rear ring, and a dynamic guide spring frame is arranged on the ball head rod on the front ring and the rear ring, and the front ring and the rear ring in adjacent positions are combined to form a dynamic part, and an intermediate kinetic energy ring is arranged between the dynamic parts in each adjacent position; The rear oil ring is installed on the outer wall of one end of the mounting sleeve, a passive oil chamber is opened in the inner position of the mounting sleeve corresponding to the rear oil ring, and an oil pipeline is connected between the interior of the intermediate kinetic energy ring and the passive oil chamber.

[0006] It is further configured as follows: the spiral flow-direction guiding structure is arranged at one end of the packer, and the direction from the spiral flow-direction guiding structure to the slip structure in the packer is the downhole direction of the packer.

[0007] It is further configured as follows: the two ends of the ball head rod are movably connected to the front ring, the rear ring and the two ends of the dynamic guide spring frame, and the ball head rod is arranged in a ring array along the center point of the installation sleeve.

[0008] It is further configured that: the dynamic guide spring frame is in an arch shape along a direction deviating from the outer wall of the installation sleeve, and the dynamic guide spring frame is in an inclined shape along the length direction of the installation sleeve in the dynamic part.

[0009] It is further configured as follows: the inclination directions of the dynamic guide spring frames in the dynamic parts in each group of adjacent positions are opposite, and the threaded rotation directions of the front ring and the rear ring in the dynamic parts are opposite to those of the mounting sleeves, the mounting sleeves are arranged in sequence along the setting direction of the dynamic parts, and each mounting sleeve is connected by a long-handled screw.

[0010] It is further configured as follows: the intermediate kinetic energy ring is composed of a rubber ring and two kinetic energy contact sheets, the rubber ring is connected between the two kinetic energy contact sheets, and the kinetic energy contact sheets are respectively arranged on the outer wall positions corresponding to the front ring and the rear ring, and the oil pipeline runs through the rubber ring and is connected to the inside of the rubber ring.

[0011] It is further configured as follows: the oil pipeline is connected to the inside of the passive oil chamber, a ball head rod 2 and a guide rod are respectively arranged on the outer wall of the rear oil ring along the downhole direction of the packer, and the top end of the ball head rod 2 is movably connected to a rear wing guide ring.

[0012] It is further configured as follows: the ball head rod 2 is installed on the outer wall of the rear oil ring along a direction parallel to the diameter of the rear oil ring, the guide rod is slidingly connected to the rear oil ring along a direction parallel to the diameter of the rear oil ring, and a pressure ring plate is installed at the lower end of the guide rod located in the passive oil chamber, and a wave strip corresponding to the rear wing guide ring is installed at the top end of the guide rod.

[0013] The present invention has the following beneficial effects: Based on the packer used in cementing engineering, an external guide structure is added. First, it is necessary to ensure that the guide structure will not interfere with the normal downhole process of the packer, and change the setting position of the guide structure relative to the packer. Compared with the downhole method of the packer, the overall guide structure adopts a rear guide method. Its essence is composed of multiple groups of dynamic parts. Each dynamic part is composed of a front ring, a rear ring and a dynamic guide spring frame between the two. When performing righting and guiding, the front ring and the rear ring have a small spiral action, and the spiral directions of the two are opposite. The purpose is to first transfer the possible stress changes to the dynamic guide spring frame through the dynamic switching process when the bending degree of the dynamic guide spring frame is changed in accordance with the wellbore environment, so as to play a righting and guiding role in this way; To summarize the above content: For further optimization of the dynamic parts, it is first necessary to limit the spiral direction of the front ring and the rear ring relative to the mounting sleeve, so as to change the way the dynamic guide spring frame is stretched or compressed, thereby changing the bending degree of the dynamic guide spring frame, and setting an intermediate kinetic energy ring between the dynamic parts at each adjacent position. The stress change is converted into hydraulic change through the force unloading method of the intermediate kinetic energy ring structure, and the rear wing guide ring is changed for auxiliary guidance. The main purpose is to improve the guidance stability through a multi-angle guidance process on the basis of achieving the guidance purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the application of the spiral flow-direction guide structure in the cementing engineering proposed by the present invention in the packer; Figure 2 It is a structural schematic diagram of the spiral flow type guide structure in the present invention; Figure 3 For the present invention Figure 2 Split diagram of ; Figure 4 It is a schematic diagram of the structure of the front ring and the rear ring in the present invention; Figure 5 For the present invention Figure 2 A cross-sectional view of Figure 6 For the present invention Figure 5 Schematic diagram of the structure of part A.

[0016] In the figure: 1. Installation sleeve; 101. Passive oil chamber; 102. Oil pipeline; 2. Rear ring; 3. Intermediate kinetic energy ring; 4. Front ring; 5. Rear wing guide ring; 6. Rear oil ring; 7. Dynamic guide spring frame; 8. Ball head rod one; 9. Guide rod; 10. Pressure ring plate; 11. Ball head rod two; 12. Packer. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1: With respect to the pipe lowering technology in cementing engineering, and specifically with respect to the straightening process in the pipe lowering technology, conventionally, a directional-designed straightening device structure is mainly used to achieve the purpose of "forced guidance". However, due to the complexity of the wellbore environment, the straightening effect produced by the straightening device will directly affect the movement stability of structures such as casing and separators when they are lowered into the well, such as non-directional swinging movement, or even the serious engineering accident of the straightening device being stuck in the wellbore. The following technical solution is proposed for this: Reference Figures 1 to 6 The spiral flow type guide structure used in cementing engineering in this embodiment is used in a packer 12 in cementing engineering. The spiral flow type guide structure is installed at one end of the packer 12, and includes an installation sleeve 1, a front ring 4, a rear ring 2, a dynamic guide spring frame 7 and a rear oil ring 6; The front ferrule 4, the rear ferrule 2 and the mounting sleeve 1 are threadedly connected, and a ball head rod 8 is arranged on the outer wall of the front ferrule 4 and the rear ferrule 2, and a dynamic guide spring frame 7 is arranged on the ball head rod 8 on the front ferrule 4 and the rear ferrule 2, and the front ferrule 4 and the rear ferrule 2 in adjacent positions are combined to form a dynamic part, and an intermediate kinetic energy ring 3 is arranged between the dynamic parts in each adjacent position; The rear oil ring 6 is installed on the outer wall of one end of the mounting sleeve 1. A passive oil chamber 101 is opened in the internal position of the mounting sleeve 1 corresponding to the rear oil ring 6. An oil pipeline 102 is connected between the interior of the intermediate kinetic energy ring 3 and the passive oil chamber 101. The setting direction of the spiral flow type guide structure corresponds to the downhole direction of the packer 12, and the spiral flow type guide structure is arranged in the opposite direction of the downhole direction in the slip structure of the packer 12. The dynamic guide spring frame 7 is arched in the direction deviating from the outer wall of the mounting sleeve 1, and the dynamic guide spring frame 7 is inclined along the length direction of the mounting sleeve 1 in the dynamic part.

[0019] Basic principle: A brief description of cementing engineering is given, which specifically includes four steps: casing lowering, cementing, waiting for setting and quality inspection. Casing lowering is a key step in the overall operation process, and the packer 12 is a basic structure in the cementing engineering. For example, the packer 12 is connected to the designed position of the casing string (such as an open hole section or above a complex formation), and is equipped with matching guide shoes, baffles and other accessories to control the lowering speed and avoid collisions that may cause damage to the rubber cylinder or valve system. In this regard, the present invention is improved based on the packer 12 in order to optimize the guiding method, and will not directly affect the basic structural composition of the packer 12. The guiding structure proposed by the present invention is as follows Figure 2 As shown, and in accordance with Figure 1 As shown Figure 2 The guiding structure in the packer 12 is installed on the packer 12, and referring to the slips, rubber tubes and downhole direction on the packer 12, if Figure 1 The middle packer 12 is lowered from right to left. Figure 2 The guide structure can only be installed at the rightmost position of the packer 12, which specifically means that it must be set at the right side of the rubber tube. This is the basic technical content of this embodiment; During the downhole process, the packer 12 is mainly Figure 2 The guiding structure in the wellbore is used for guiding. Specifically, each dynamic guiding spring frame 7 contacts the inner wall of the wellbore. In the initial state, each dynamic guiding spring frame 7 maintains a curved arch shape in the direction close to the inner wall of the wellbore. For this purpose, it is first necessary to ensure that the maximum curved surface diameter of each dynamic guiding spring frame 7 is greater than the maximum diameter of the packer 12, so that the dynamic guiding spring frame 7 plays the purpose of contact guidance and straightening.

[0020] Embodiment 2: The following supplementary explanation is given to the activity process of the dynamic part: The two ends of the ball head rod 8 are movably connected to the two ends of the front ring 4, the rear ring 2 and the dynamic guide spring frame 7, and the ball head rod 8 is arranged in a circular array along the center point of the installation sleeve 1. The inclination directions of the dynamic guide spring frames 7 in the dynamic parts of each group of adjacent positions are opposite, and the front ring 4 and the rear ring 2 in the dynamic parts are opposite to the threaded rotation direction of the installation sleeve 1. The installation sleeve 1 is arranged in sequence along the setting direction of the dynamic parts, and each installation sleeve 1 is connected by a long-handled screw.

[0021] Solution description: The front ring 4 and the rear ring 2 in the dynamic part can essentially actively change the bending degree of the dynamic guide spring frame 7, refer to Figure 2 and Figure 5 As shown, there is a gap between the front ring 4 and the rear ring 2. Specifically, the front ring 4 and the rear ring 2 move linearly on the mounting sleeve 1. The following optimization methods are performed for the dynamic parts: Method 1: The front-position ferrule 4 and the rear-position ferrule 2 are threadedly connected to the mounting joint sleeve 1, enabling a helical motion. When performing the helical motion, it has the ability of linear movement but not in a direct sliding manner. For Figure 4 example, each dynamic guiding spring frame 7 is not arranged along the length direction of the parallel packer 12, but is inclined relative to the front-position ferrule 4 and the rear-position ferrule 2. Its main purpose is to cooperate with the helical motion of the front-position ferrule 4 and the rear-position ferrule 2. By restricting the thread directions of the front-position ferrule 4, the rear-position ferrule 2 and the mounting joint sleeve 1, the helical directions of the two are restricted to be completely opposite. If Figure 4 the front-position ferrule 4 in [reference] rotates counterclockwise, then the rear-position ferrule 2 rotates clockwise. In this state, the dynamic guiding spring frame 7 is stretched by the front-position ferrule 4 and the rear-position ferrule 2, so its bending degree decreases. However, if the front-position ferrule 4 rotates clockwise and the rear-position ferrule 2 rotates counterclockwise, then the dynamic guiding spring frame 7 is compressed by the front-position ferrule 4 and the rear-position ferrule 2, resulting in an increase in its bending degree, and the reverse is deduced: in the initial state, the dynamic guiding spring frame 7 will contact the wellbore environment. When the compression amount of the wellbore environment on the dynamic guiding spring frame 7 is large, it will indirectly change the linear movement mode between the front-position ferrule 4 and the rear-position ferrule 2; Method 2: During the installation of the overall guiding structure, the front-position ferrule 4 and the rear-position ferrule 2 are threadedly connected to the mounting joint sleeve 1 separately. For this, several mounting joint sleeves 1 need to be added according to the number of the front-position ferrule 4 and the rear-position ferrule 2, and they are directly installed through long handle screws. As Figure 5 shown, the front-position ferrule 4 at the outermost position will not move to the left, and the rear-position ferrule 2 will not move to the right, thus ensuring relative fixation. During the installation process, an intermediate kinetic energy ring 3 also needs to be added between the dynamic parts. The intermediate kinetic energy ring 3 is mainly used to sense the linear movement mode of the front-position ferrule 4 and the rear-position ferrule 2; Method 3: The inclination mode of the dynamic guiding spring frame 7 in each dynamic part is set in a staggered manner. For Figure 5 example, each dynamic part is numbered along the direction from left to right. The dynamic guiding spring frame 7 in the first dynamic part is inclined counterclockwise, then the dynamic guiding spring frame 7 in the second dynamic part is inclined clockwise, and conversely, the dynamic guiding spring frame 7 in the third dynamic part is inclined counterclockwise. Set in this way, its purpose is: it can better adapt to the wellbore environment and change the bending change mode of each dynamic guiding spring frame 7.

[0022] Example 3: Based on Example 2, the rear wing guiding ring is proposed to supplement and explain it: The middle kinetic energy ring 3 is composed of a rubber ring and two kinetic energy contact sheets. The rubber ring is connected between the two kinetic energy contact sheets, and the kinetic energy contact sheets are respectively arranged on the outer wall positions corresponding to the front ferrule 4 and the rear ferrule 2. The oil pipeline 102 passes through the rubber ring and is connected to the inside of the rubber ring. The oil pipeline 102 is connected to the inside of the passive oil chamber 101. A ball head rod 11 and a guide rod 9 are respectively arranged on the outer wall of the rear oil ring 6 along the downhole direction of the packer 12. The top end of the ball head rod 11 is movably connected with the rear wing guide ring 5. The ball head rod 11 is installed on the outer wall of the rear oil ring 6 along the direction parallel to the diameter of the rear oil ring 6. The guide rod 9 is slidably connected to the rear oil ring 6 along the direction parallel to the diameter of the rear oil ring 6. A pressure ring plate 10 is installed at the lower end of the guide rod 9 located in the passive oil chamber 101, and a wave strip corresponding to the rear wing guide ring 5 is installed at the top end of the guide rod 9.

[0023] Program Description: Figure 5 For example, each intermediate kinetic energy ring 3 is composed of a rubber ring and two kinetic energy contact pieces, and the kinetic energy contact pieces are in indirect contact with the front ring 4 and the rear ring 2. Each intermediate kinetic energy ring 3 is essentially in a fixed position with the mounting sleeve 1. In the initial state, the intermediate kinetic energy ring 3 is located exactly in the middle of two adjacent dynamic parts. When the front ring 4 or the rear ring 2 moves linearly, it will directly contact the kinetic energy contact piece, thereby compressing the volume inside the rubber ring. For this, the following process is set in conjunction with the rear oil ring 6: Process 1: First, it is necessary to ensure that the rear oil ring 6 is arranged further behind the dynamic part, so that the rear wing guide ring 5 on the rear oil ring 6 can be used as a subsequent auxiliary guide structure of the overall guide structure. For this, in the initial state, hydraulic oil needs to be injected into the passive oil chamber 101, and further injected into each intermediate kinetic energy ring 3 along the oil pipeline 102, so that the rubber ring in each intermediate kinetic energy ring 3 is fully expanded, so that the distances between the two kinetic energy contact pieces and the front ring 4 and the rear ring 2 are exactly equal, and the rear wing guide ring 5 will not contact the wellbore before the dynamic guide spring frame 7; Process 2: In conjunction with the specific description in Example 2: When the dynamic guide spring frame 7 in the dynamic part at a certain position is bent and changed, the front ring 4 and the rear ring 2 are mainly formed in a linear movement mode, so that they will contact the kinetic energy contact piece and compress the rubber ring to distribute the hydraulic oil inside to the middle kinetic energy ring 3, or directly to the passive oil chamber 101. In this process, refer to Figure 6 When part of the hydraulic oil is distributed to the passive oil chamber 101, it will generate an outward thrust to the pressure ring plate 10 at a certain position, causing the rear wing guide ring 5 to rotate counterclockwise along the top of the ball head rod 11, and replace the dynamic guide spring frame 7 at a certain position to contact the inner wall of the well; Process three: Combined with process two, the spiral mode in each dynamic part is different. If the front ring 4 and the rear ring 2 in a dynamic part move linearly, it will also indirectly affect the dynamic parts in the adjacent positions. The specific manifestation is the direct sliding action caused by the hydraulic change of the kinetic contact piece. It can be directly understood that when the dynamic guide spring frame 7 in a dynamic part is bent and changed due to the wellbore environment, it will "manage" multiple dynamic parts and the rear wing guide ring 5 in a collaborative manner. The overall solution is to alleviate the movement stability of the overall guide structure in real time through collaborative management. On the basis of playing the role of straightening and guiding, it avoids the overall packer 12 from producing multiple non-directional swings due to the deformation process of the dynamic guide spring frame.

[0024] In summary, based on the packer used in cementing engineering, an external guide structure is added for the downhole direction of the packer during operation. Its essence is composed of multiple groups of dynamic parts, each of which is composed of a front ring, a rear ring and a dynamic guide spring frame between the two. When performing straightening and guiding, the front ring and the rear ring have a small spiral action, and the spiral directions of the two are opposite. The purpose is to change the bending degree of the dynamic guide spring frame in accordance with the wellbore environment. The possible stress changes are first transmitted to the dynamic guide spring frame through the dynamic switching process, and the stress changes are converted into hydraulic changes through the unloading method of the intermediate kinetic energy ring structure, and the rear wing guide ring is changed for auxiliary guidance. It is mainly based on the purpose of guidance, and the guidance stability is improved through the multi-angle guidance process.

[0025] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A spiral flow-direction guide structure used in cementing engineering, used in a packer (12) in cementing engineering, characterized in that: The spiral flow-direction guide structure is installed at one end of the packer (12), and comprises a mounting sleeve (1), a front ring (4), a rear ring (2), a dynamic guide spring frame (7) and a rear oil ring (6); The front ring (4), the rear ring (2) and the mounting sleeve (1) are threadedly connected, and a ball head rod (8) is arranged on the outer wall of the front ring (4) and the rear ring (2), and a dynamic guide spring frame (7) is arranged on the ball head rod (8) on the front ring (4) and the rear ring (2), and the front ring (4) and the rear ring (2) in adjacent positions are combined to form a dynamic part, and an intermediate kinetic energy ring (3) is arranged between the dynamic parts in each adjacent position; The rear oil ring (6) is mounted on the outer wall of one end of the mounting sleeve (1), a passive oil chamber (101) is provided in an internal position of the mounting sleeve (1) corresponding to the rear oil ring (6), and an oil pipeline (102) is connected between the interior of the intermediate kinetic energy ring (3) and the passive oil chamber (101).

2. The spiral flow guide structure used in cementing engineering according to claim 1, characterized in that: The spiral flow-direction guiding structure is arranged at one end of the packer (12), and the direction from the spiral flow-direction guiding structure to the slip structure in the packer (12) is the downhole direction of the packer (12).

3. The spiral flow-direction guide structure used in cementing engineering according to claim 1, characterized in that: The two ends of the ball head rod (8) are movably connected to the two ends of the front ring (4), the rear ring (2) and the dynamic guide spring frame (7), and the ball head rod (8) is arranged in a ring array along the center point of the installation sleeve (1).

4. The spiral flow-direction guide structure used in cementing engineering according to claim 1, characterized in that: The dynamic guide spring frame (7) is in an arch shape in a direction deviating from the outer wall of the installation sleeve (1), and the dynamic guide spring frame (7) is in an inclined shape along the length direction of the installation sleeve (1) in the dynamic part.

5. The spiral flow-direction guide structure used in cementing engineering according to claim 4, characterized in that: The dynamic guide spring frames (7) in the dynamic parts at each group of adjacent positions have opposite inclination directions, and the front ring (4) and the rear ring (2) in the dynamic parts have opposite screw thread rotation directions to the mounting sleeve (1). The mounting sleeves (1) are arranged in sequence along the arrangement direction of the dynamic parts, and each mounting sleeve (1) is connected via a long-shank screw.

6. The spiral flow-direction guide structure used in cementing engineering according to claim 1, characterized in that: The intermediate kinetic energy ring (3) is composed of a rubber ring and two kinetic energy contact sheets. The rubber ring is connected between the two kinetic energy contact sheets, and the kinetic energy contact sheets are respectively arranged at positions corresponding to the outer walls of the front ring (4) and the rear ring (2). The oil pipeline (102) passes through the rubber ring and is connected to the inside of the rubber ring.

7. The spiral flow-direction guide structure used in cementing engineering according to claim 6, characterized in that: The oil pipeline (102) is connected to the interior of the passive oil chamber (101), and a second ball head rod (11) and a guide rod (9) are respectively provided on the outer wall of the rear oil ring (6) along the downhole direction of the packer (12), and the top end of the second ball head rod (11) is movably connected to a rear wing guide ring (5).

8. The spiral flow-direction guide structure used in cementing engineering according to claim 7, characterized in that: The second ball head rod (11) is installed on the outer wall of the rear oil ring (6) in a direction parallel to the diameter of the rear oil ring (6), the guide rod (9) is slidably connected to the rear oil ring (6) in a direction parallel to the diameter of the rear oil ring (6), and a pressure ring plate (10) is installed at the lower end of the guide rod (9) located in the passive oil chamber (101), and a wave strip corresponding to the rear wing guide ring (5) is installed at the top end of the guide rod (9).

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