CN116733389A - Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method - Google Patents
Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method Download PDFInfo
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- CN116733389A CN116733389A CN202311017170.6A CN202311017170A CN116733389A CN 116733389 A CN116733389 A CN 116733389A CN 202311017170 A CN202311017170 A CN 202311017170A CN 116733389 A CN116733389 A CN 116733389A
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000009471 action Effects 0.000 claims abstract description 26
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000007667 floating Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 6
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- 238000010586 diagram Methods 0.000 description 6
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- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
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- 230000009182 swimming Effects 0.000 description 2
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
Abstract
The invention discloses an elastic slip and an automatic control device and method for a pressurized operation pipe column comprising the elastic slip, and relates to the field of pressurized well repairing and tripping oil pipes. The elastic slip comprises a slip seat, a slip body, a tooth plate, a slip moving plate, a connecting rod and an opening and closing oil cylinder, and further comprises a slip bottom plate and a slip opening and closing sensor, wherein a guide ring groove is formed in the upper portion of the slip bottom plate, a guide disc extending into the guide ring groove is arranged at the bottom of the slip seat, a spring is arranged between the inner side wall of the guide disc and the outer side of the inner wall of the guide ring groove, and the slip seat is stably adjusted up and down relative to the slip bottom plate through the elastic action of the spring to avoid locking. According to the invention, the guide mechanism reserves an unlocking space and simultaneously avoids shaking caused by a spring, so that the normal use of the slips is ensured. And the detection signals of the position sensors are received through a PLC program, the working states of the slips are automatically judged, the slips are automatically controlled to work alternately, the automatic control of the pipe lifting and the pipe releasing of the pipe column is realized, the potential safety hazard caused by human factors is avoided, and the safety is high.
Description
Technical Field
The invention relates to the technical field of oil automatic under-pressure well repairing, lifting and descending, in particular to an elastic slip and an under-pressure operation pipe column automatic control device and method comprising the same.
Background
The oil field operation equipment under pressure all needs to be configured with slips to control the pipe column, and because oil field well conditions are different, shallow wells (within 2500 m) and low-pressure wells (wellhead pressure is not higher than 10 MPa) adopt opposite clamping type universal slips to control the pipe column, and deep wells (depth above 2500 m) and high-pressure wells (wellhead pressure is higher than 10 MPa) need to adopt conical self-tightening slip groups to control the pipe column. The traveling slip set and the fixed slip set of the conical self-tightening slip set comprise a set of bearing slips and a set of anti-jacking slips, and the traveling slip set and the fixed slip set are required to be manually operated frequently to clamp a tubular column.
And, as the number of columns in the well varies and the pressure in the well varies, the column sling state is divided into a heavy column state, a neutral point state and a light column state. The heavy pipe column state refers to the condition that the weight of the pipe column is far greater than the upward pushing force generated by the pressure in the well on the pipe column, and the pipe column has a falling trend in the state; the neutral point state means that the weight of the pipe column is basically equivalent to the jacking force generated by the pressure in the well on the pipe column, and the pipe column can suddenly move upwards or suddenly drop due to the sudden change of the pressure in the well; the light pipe column state refers to the condition that the weight of the pipe column is far lower than the jacking force generated by the pressure in the well on the pipe column, and the pipe column has a upward channeling trend in the state. Under the condition that the string hanging weight is in a heavy string state or a light string state, the operation machine with pressure only needs to alternately use two groups of bearing slips or two groups of anti-jacking slips to control the movement of the string when the string is lifted and lowered. However, in the neutral point state, when the weight of the run-in pipe column is larger than the jacking force, the pipe column may drop down, and the jacking force is larger than the weight of the pipe column because the pressure in the well suddenly rises, so that the pipe column can be jacked up to cause accidents. Therefore, in order to ensure construction safety, an anti-jacking slip and a bearing slip are used simultaneously for controlling the pipe column when the pipe passes through a neutral point. When the movable slip group and the fixed slip group are alternately used, four groups of slips are easily locked due to different unlocking modes of the anti-jacking slips and the bearing slips, and the main reason is that the force of the wedge-shaped contact surface of the slip body and the slip seat cannot be released.
At present, two common modes are available for solving the problems, namely, firstly, a fixing screw on a bearing slip is loosened when a neutralization point is exceeded, and when the slip is locked, a point displacement can be generated, so that the unlocking is convenient, but the method is complex in operation and inconvenient, and the locking cannot be avoided; secondly, install the spring in slips bottom additional, reserve the unblock space, but current spring can directly bear high load under the heavy load condition, is broken very easily, because the spring takes place to shake the nature easily simultaneously, influences the normal use of slips. Also like the prior art CN115977557A, the invention discloses an oil pipe lifting control device for operation under pressure, wherein the four groups of disc spring assemblies are arranged, so that the locking of slips is avoided, and the operation efficiency of equipment is improved. However, the device needs to confirm the compression state of the four groups of slips manually, because the fixed slip group is positioned at the lower part of the operation platform, operators stand on the operation platform to observe that the fixed slip group has a certain visual angle obstacle, and the operators need to operate according to the logic action sequence strictly for a long time, and once the operation is wrong, the safety accident of a flying pipe or a falling pipe can be generated.
Accordingly, the conventional slip and pressurized operation string lifting control device still has inconvenience and defects, and further improvement is needed. How can establish a new elasticity slips and including its automatic controlling means of area pressure operation tubular column and method, make its slips structure solve current slips and lock and die easily to and current spring takes place the drawback of rocking easily, and through setting up the sensor, through PLC program control, can automated inspection slips operating condition, and can control the hydro-cylinder and accomplish slips switching operation voluntarily, do not need artifical the participation, stopped the potential safety hazard that the human factor produced, improved the security of operation, become the current industry and need the improvement's of urgent need target.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the elastic slip, so that the elastic slip can solve the problems that the existing slip is easy to lock and the existing spring is easy to shake to influence the normal use of the slip by improving a spring mechanism, and a reliable condition is provided for automatic control of a string of pressurized operation.
In order to solve the technical problems, the invention provides an elastic slip, which comprises a slip seat, a slip body, a tooth plate, a slip moving plate, a connecting rod and an opening and closing cylinder, wherein the slip seat adopts an inverted cone-shaped hollow base, the slip body comprises a plurality of slip bodies, the slip bodies are arranged in a central hole of the slip seat in the radial direction, the outer side wall of the slip body is matched with the conical inner wall of the central hole of the slip seat in shape, the tooth plate is arranged on the inner side wall of the slip body and is used for being in contact with the periphery of a pipe column, the upper part of the slip body is hinged with the slip moving plate through the connecting rod, one end of the opening and closing cylinder is connected with the slip seat, the other end of the opening and closing cylinder is connected with the slip moving plate, and the opening and closing cylinder drives the slip moving plate to lift so as to realize the lifting of the slip bodies in the central hole of the slip seat, thereby realizing the clamping and releasing control of the tooth plate to the pipe column.
The slip seat is characterized by further comprising a slip bottom plate arranged at the bottom of the slip seat, a guide ring groove surrounding a center through hole is formed in the upper portion of the slip bottom plate, a guide disc extending into the guide ring groove is arranged at the bottom of the slip seat, the outer side wall of the guide disc is attached to the inner side of the outer wall of the guide ring groove, a spring is arranged between the inner side wall of the guide disc and the outer side of the inner wall of the guide ring groove, a plurality of guide holes are formed in the guide disc, a guide through hole corresponding to the guide hole is formed in the bottom of the guide ring groove, the guide holes are connected with the guide through holes through pin shafts, and the slip seat is adjusted up and down through the elastic force of the spring under the guide action of the guide disc and the guide ring groove, so that the purpose of unlocking the slip is achieved.
Further improved, the device also comprises a slip opening and closing sensor for detecting the slip opening and closing state.
Further improved, the slip opening and closing sensor is an external stay wire sensor, one end of the external stay wire sensor is connected with the slip moving plate, and the other end of the external stay wire sensor is connected with the slip seat.
Further improved, the outer wall of the guide ring groove is discontinuously arranged, and the height of the outer wall of the guide ring groove is larger than that of the inner wall of the guide ring groove.
As a further improvement of the present invention, the present invention further provides an automatic control device for a pressurized working string, including a fixed frame, a working blowout preventer, a lifting cylinder, a traveling beam, a traveling slip set, and a fixed slip set, wherein the fixed frame includes a fixed upper plate and a fixed lower plate, the lifting cylinder is disposed between the fixed upper plate and the fixed lower plate, an extension rod of the lifting cylinder penetrates through the fixed upper plate and then is connected with the traveling beam, the traveling slip set is disposed on the traveling beam, and the fixed slip set is disposed on the fixed lower plate through the working blowout preventer; the movable slip group comprises a movable bearing slip and a movable anti-jacking slip, the movable bearing slip and the movable anti-jacking slip are both elastic slips, the movable bearing slip and the movable anti-jacking slip are oppositely arranged, slip bottom plates of the movable bearing slip and the movable anti-jacking slip are fixedly connected through at least three first fixing columns, a first position sensor and a second position sensor are arranged on at least one first fixing column, the first position sensor is matched with a slip seat of the movable anti-jacking slip to realize state detection on whether the movable anti-jacking slip is compacted or not, and the second position sensor is matched with a slip seat of the movable bearing slip to realize state detection on whether the movable bearing slip is compacted or not;
The fixed slip group is including fixed bearing slips and fixed roof slip of preventing, fixed bearing slips and fixed roof slip of preventing all adopt foretell elasticity slips, fixed bearing slips and fixed roof slip set up relatively, through at least three second fixed column fixed connection between its the slip bottom plate of both, and be equipped with third position sensor and fourth position sensor on at least one second fixed column, third position sensor through with the slip seat cooperation of fixed roof slip realize right fixed roof slip whether by the state detection of compressing tightly, fourth position sensor through with the slip seat cooperation of fixed bearing slips realize right fixed bearing slips whether by the state detection of compressing tightly.
Further improved, a fifth position sensor is arranged in the lifting oil cylinder.
Further improved, the fifth position sensor adopts a built-in magnetic scale sensor.
The automatic control device is characterized by further comprising a control mechanism connected with the slip opening and closing sensor, the first position sensor, the second position sensor, the third position sensor, the fourth position sensor and the fifth position sensor, wherein the control mechanism controls the swimming bearing slips, the swimming roof-climbing slips, the fixed bearing slips, the fixed roof-climbing slips, the opening and closing cylinder and the expansion and contraction of the lifting cylinder according to detection signals of the slip opening and closing sensor, the first position sensor, the second position sensor, the third position sensor, the fourth position sensor and the fifth position sensor, so that the automatic control of the operation pipe column under pressure is realized.
As another improvement of the invention, the invention also provides an automatic control method of the pressurized operation pipe column, which is realized by the automatic control device of the pressurized operation pipe column, and comprises an automatic control mode of lifting the pressurized operation pipe column and an automatic control mode of lowering the pressurized operation pipe column;
the automatic control mode for lifting the pipe of the pressurized operation pipe column comprises the following steps:
s1, judging whether the initialization is finished by the control mechanism, if the initialization is not finished, executing the initialization action, if the initialization is finished, controlling slip opening and closing cylinders of the traveling slip group to retract, and ensuring that the traveling bearing slips and the traveling anti-jacking slips clamp a tubular column under the detection of the corresponding slip opening and closing sensor;
s2, the control mechanism controls the lifting oil cylinder to retract slowly to form compression of the floating anti-jacking slip and the fixed bearing slip, the first position sensor detects that the floating anti-jacking slip is compressed in place, the fourth position sensor detects that the fixed bearing slip is compressed in place, and the lifting oil cylinder is stopped from retracting when the fifth position sensor detects that the lifting oil cylinder reaches a limit low position;
S3, controlling the opening and closing oil cylinders of the fixed anti-jacking slips to extend out, and opening the fixed anti-jacking slips; controlling the lifting oil cylinder to slowly extend out, controlling the opening and closing oil cylinder of the fixed bearing slip to extend out, and opening the fixed bearing slip;
s4, after the slip opening and closing sensor detects that the fixed anti-jacking slip and the fixed bearing slip are completely opened, the lifting oil cylinder drives the pipe column to ascend through the traveling slip group, and after the fifth position sensor detects that the lifting oil cylinder reaches a set height, the control mechanism controls the lifting oil cylinder to stop ascending;
s5, controlling the slip opening and closing cylinders of the fixed slip groups to retract, and ensuring that the fixed bearing slips and the fixed anti-jacking slips clamp a tubular column under the detection of the corresponding slip opening and closing sensors; the control mechanism controls the lifting oil cylinder to slowly extend out to form compression of the traveling bearing slips and the fixed anti-jacking slips, the second position sensor detects that the traveling bearing slips are compressed in place, the third position sensor detects that the fixed anti-jacking slips are compressed in place, and the lifting oil cylinder is stopped from extending out when the fifth position sensor detects that the lifting oil cylinder reaches a limit high position;
S6, controlling the opening and closing oil cylinders of the moving anti-jacking slips to extend out, and opening the moving anti-jacking slips; controlling the lifting oil cylinder to slowly retract, controlling the opening and closing oil cylinder of the traveling bearing slip to extend, opening the traveling bearing slip, driving the traveling slip group to descend after the slip opening and closing sensor detects that the traveling anti-jacking slip and the traveling bearing slip are completely opened, controlling the lifting oil cylinder to stop when the lifting oil cylinder reaches an initialization position by the fifth position sensor, completing one pipe column lifting action, repeating the steps S1-S6, and realizing continuous pipe lifting operation;
the automatic control mode for the pipe running of the pressurized operation pipe column comprises the following steps:
the control mechanism judges whether the initialization is finished or not, if the initialization is not finished, the initialization action is executed, if the initialization is finished, the lifting oil cylinder is controlled to drive the traveling slip group to ascend, and after the fifth position sensor detects that the lifting oil cylinder reaches the set height, the control mechanism controls the lifting oil cylinder to stop ascending;
and T2, controlling slip opening and closing cylinders of the traveling slip group to retract, and ensuring that the traveling bearing slips and the traveling anti-jacking slips clamp a tubular column under the detection of the corresponding slip opening and closing sensor;
The control mechanism controls the lifting oil cylinder to slowly extend after the corresponding slip opening and closing sensors ensure that the traveling bearing slips and the traveling anti-jacking slips clamp a pipe column, so that the traveling bearing slips and the fixed anti-jacking slips are tightly pressed, the second position sensor detects that the traveling bearing slips are tightly pressed in place, the third position sensor detects that the fixed anti-jacking slips are tightly pressed in place, and the fifth position sensor detects that the lifting oil cylinder reaches a limit high position, so that the lifting oil cylinder is stopped from extending;
and T4, controlling the opening and closing oil cylinders of the fixed bearing slips to extend out, and opening the fixed bearing slips; controlling the lifting oil cylinder to retract slowly, controlling the opening and closing oil cylinder of the fixed anti-jacking slip to extend out, and opening the fixed anti-jacking slip;
t5, after the slip opening and closing sensor detects that the fixed bearing slip and the fixed anti-jacking slip are completely opened, the lifting oil cylinder drives the pipe column to descend through the traveling slip group, and after the fifth position sensor detects that the lifting oil cylinder reaches a set height, the control mechanism controls the lifting oil cylinder to stop descending;
And T6, controlling the slip opening and closing cylinders of the fixed slip groups to retract, and ensuring that the fixed bearing slips and the fixed anti-jacking slips clamp the pipe column under the detection of the corresponding slip opening and closing sensors; the control mechanism controls the lifting oil cylinder to retract slowly to form compression of the moving anti-jacking slip and the fixed bearing slip, the first position sensor detects that the moving anti-jacking slip is compressed in place, the fourth position sensor detects that the fixed bearing slip is compressed in place, and the lifting oil cylinder is stopped from retracting when the fifth position sensor detects that the lifting oil cylinder reaches a limit low position;
t7, controlling the opening and closing cylinder of the travelling bearing slip to extend out, and opening the travelling bearing slip; when the lifting oil cylinder is controlled to slowly extend to reach an initial position, the opening and closing oil cylinder of the moving anti-jacking slip is controlled to extend, the moving anti-jacking slip is opened, a pipe column pipe-discharging action is completed once, and the processes of the steps T1-T7 are repeated, so that continuous pipe-discharging operation is realized.
Further improved, the initialization state of the method is as follows: the slip opening and closing cylinders of the traveling slip group are in an extending state, the slip opening and closing cylinders of the fixed slip group are in a retracting state, and the lifting cylinder is in an initial retracting state.
With such a design, the invention has at least the following advantages:
1. according to the elastic slip, the bottom of the slip seat is improved, and the slip bottom plate is additionally arranged, so that a guide space is provided for the spring, the slip seat can be vertically and stably adjusted along the axial direction of the guide ring groove, the shaking caused by the spring is avoided while the unlocking space is reserved, the normal use of the slip is ensured, and the elastic slip is low in cost, safe and reliable.
2. The slip on-off state can be automatically detected remotely through the arrangement of the slip on-off sensor, so that the leakage caused by artificial observation is avoided, and the slip on-off sensor is safe, reliable and low in labor intensity.
3. The automatic control device for the pressurized operation pipe column can receive position state signals transmitted by the position sensors through a PLC program, automatically judge working states of the movable bearing slips, the movable anti-jacking slips, the fixed bearing slips and the fixed anti-jacking slips, automatically control the lifting oil cylinder and the opening and closing oil cylinder to perform logic actions, complete opening and closing alternate operation of each slip, realize control automation of pipe lifting and pipe discharging of the pipe column, avoid manual participation in the whole process, eliminate potential safety hazards caused by human factors and improve operation safety.
4. According to the automatic control method for the pressurized operation pipe column, the automatic control device for the pressurized operation pipe column realizes an initialization control mode, an automatic control mode for lifting the pressurized operation pipe column and an automatic control mode for lowering the pressurized operation pipe column, different control modes are executed according to operation tasks, the operation of lifting and lowering the pressurized operation pipe column is thoroughly solved, locking is avoided, the automation degree is high, and safety is guaranteed.
Drawings
The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic diagram of the overall structure of the automatic control device for the pressurized operation pipe column.
Fig. 2 is a schematic structural view of an elastic slip in an open state in the present invention.
Fig. 3 is a schematic view of the elastic slip in the closed state according to the present invention.
Fig. 4 is a schematic view of an elastic slip according to the present invention including a slip base.
Fig. 5 is a schematic structural view of a slip base plate according to the present invention.
Fig. 6 is a schematic illustration of the construction of a slip bowl according to the present invention.
Fig. 7 is a schematic view of the construction of the traveling slip set according to the present invention.
FIG. 8 is a schematic diagram of the compression of the traveling anti-jack slips in the traveling slip set of the present invention.
FIG. 9 is a schematic diagram of the structure of the traveling load-bearing slips of the traveling slip set of the present invention being compressed.
Fig. 10 is a schematic view of the structure of the set of fixed slips of the present invention.
Fig. 11 is a schematic structural view of a lift cylinder according to the present invention.
FIG. 12 is a control logic diagram of the initialization operation of the pressurized operation string automation control method of the present invention.
FIG. 13 is a control logic diagram of the tubular lifting operation of the automatic control method for the pressurized operating tubular column of the present invention.
FIG. 14 is a logic diagram of the control of the running operation of the pressurized operation string automation control method of the present invention.
In the figure: 1-a fixed frame; 11-fixing an upper plate; 12-fixing the lower plate; 2-lifting an oil cylinder; 21-a cylinder; 22-a piston rod; 23-a magnetic ring; 24-a detection rod; 201-a fifth position sensor; 3-a traveling cross beam; 4-a traveling slip group; 41-swimming load-bearing slips; 42-swimming anti-jack slips; 401-a first fixed column; 402-a first position sensor; 403-a second position sensor; 5-fixing the slip group; 51-fixing the bearing slips 51; 52-fixing an anti-jacking slip; 501-a second fixed column; 502-a third position sensor; 503-fourth position sensor; 6-working blowout preventer; 7-a control mechanism; 101-slip bowl; 102-a slip body; 103-dental plate; 104-slip moving plates; 105-connecting rod; 106, opening and closing the oil cylinder; 107-pin shafts; 108-expanding a spring; 109-slip floor; 110-a central through hole; 111-guiding ring grooves; 112-a guide disc; 113-a spring; 114-a guide hole; 115-a guide through hole; 120-slips on-off sensor.
Detailed Description
Referring to fig. 1, the automatic control device for the pressurized operation pipe column of the embodiment comprises a fixed frame 1, a lifting oil cylinder 2, a traveling cross beam 3, a traveling slip group 4, a fixed slip group 5 and a working blowout preventer 6. The fixed frame 1 comprises a fixed upper plate 11 and a fixed lower plate 12, at least two lifting cylinders 2 are arranged between the fixed upper plate 11 and the fixed lower plate 12, an extending rod of each lifting cylinder 2 penetrates out of the fixed upper plate 11 and then is connected with the movable cross beam 3, and the movable slip group 4 is arranged on the movable cross beam 3. The fixed slip set 5 is disposed on the fixed lower plate 11 by the working blowout preventer 6. The traveling slip group 4 comprises a traveling bearing slip 41 and a traveling anti-jacking slip 42 which are oppositely arranged. The fixed slip set 5 includes fixed load-bearing slips 51 and fixed anti-jacking slips 52 disposed opposite each other.
In this embodiment, the traveling bearing slips 41 and the traveling anti-jack slips 42, and the fixed bearing slips 51 and the fixed anti-jack slips 52 are elastic slips with the same structure.
Referring to fig. 2 and 3, the elastic slips in this embodiment are circular self-tightening slips, and include a slip bowl 101, a slip body 102, a tooth plate 103, a slip moving plate 104, a connecting rod 105, and an opening and closing cylinder 106. The slip bowl 101 is an inverted cone hollow base, and the slip body 102 includes a plurality of, e.g., three. Three slip bodies 102 are radially arranged in the central hole of the slip base 101, the outer side wall of each slip body 102 is matched with the conical inner wall of the central hole of each slip base 101 in shape, the tooth plates 103 are arranged on the inner side wall of each slip body 102, and a plurality of tooth plates 103 are used for being in contact with the periphery of a pipe column so as to grasp and loosen the pipe column. The upper portion of the slip body 102 is hinged to the slip moving plate 104 through a connecting rod 105, and two ends of the connecting rod 105 are hinged to the upper portion of the slip body 102 and the slip moving plate 104 through pin shafts 107. One end of the opening and closing cylinder 106 is connected with the slip seat 101, and the other end is connected with the slip moving plate 104. The slips can be provided with a plurality of groups of opening and closing oil cylinders 106 according to the situation, and 3 groups of the slips are uniformly distributed, so that the slip moving plate 104 can be lifted under the combined action. The opening and closing cylinder 106 drives the slip moving plate 104 to lift so as to lift the slip bodies 102 in the central hole of the slip seat 101, thereby realizing clamping and loosening control of the tooth plate 103 on the pipe column. Fig. 2 shows the slips in an open state and fig. 3 shows the slips in a closed state.
In order to ensure that the slip body 102 is opened when ascending along with the slip moving plate 104, the outer side of the upper part of the slip body 102 is also connected with an opening spring 108, and the other end of the opening spring 108 is connected with the outer edge of the slip moving plate 104 and is used for driving the slip body 102 to be opened outwards when the opening and closing oil cylinder 106 drives the slip moving plate 104 to extend so as to release the slip from the pipe column. The tooth plate 103 is secured to the slip body 102 by a securing means. Of course, the dental plate with different specifications can be replaced according to different pipe column requirements.
In a preferred embodiment, the slip further comprises a slip on/off sensor 120 for detecting the on/off state of the slip. In this embodiment, the slip opening and closing sensor 120 is an external stay wire sensor, one end of the external stay wire sensor is connected with the slip moving plate 104, and the other end is connected with the slip seat 101, so that the extending position of the slip moving plate 104 can be detected in real time, and a detection signal is transmitted to the remote control mechanism 7. The control system 7 judges the state of each slip in real time according to the detection data, and sends out an action command through remote logic control to realize the slip alternate action among the lifting oil cylinder 2, the traveling slip group 4 and the fixed slip group 5, thereby automatically completing the remote automatic control of the pipe column.
In a preferred embodiment, and referring to fig. 4 to 6, the slip according to this embodiment further comprises a slip base 109 disposed at the bottom of the slip bowl 101. The upper part of the slip base plate 109 is provided with a guide ring groove 111 surrounding a central through hole 110 thereof. The bottom of the slip seat 101 is provided with a guide disc 112 extending into the guide ring groove 111, the outer side wall of the guide disc 112 is attached to the inner side of the outer wall of the guide ring groove 111, and a spring 113 is arranged between the inner side wall of the guide disc 112 and the outer side of the inner wall of the guide ring groove 111. The springs 113 may support the entire slip and compress under some force to compress the slip bowl 101 of the slip against the slip floor 109, which is the slip compressed state. The slip seat 101 is vertically adjusted relative to the slip base plate 109 under the guiding action of the guide disc 112 and the guide ring groove 111 through the elastic action of the spring 113, so as to achieve the purpose of unlocking the slip.
Specifically, the outer wall of the guiding ring groove 111 is provided intermittently, and the height of the outer wall of the guiding ring groove 111 is greater than that of the inner wall thereof, so that the spring 113 is conveniently provided, and the slip seat 101 and the spring 113 cooperate with each other.
Referring to fig. 7 again, in this embodiment, the traveling load-bearing slip 41 and the traveling anti-jack slip 42 are disposed opposite to each other, the slip bottom plates 109 of the two slip bottom plates are fixedly connected by at least three first fixing columns 401, and a first position sensor 402 and a second position sensor 403 are disposed on at least one first fixing column 401. The first position sensor 402 is configured to detect whether the traveling anti-jack slips 42 are compressed by cooperating with the slip bowl of the traveling anti-jack slips 42, i.e., when the slip bowl of the traveling anti-jack slips 42 is compressed upward and the slip bowl touches the first position sensor 402, the first position sensor 402 signals that the traveling anti-jack slips 42 are compressed in place, as shown in fig. 8. Also, the second position sensor 403 is configured to detect whether the traveling load-bearing slip 41 is compressed by cooperating with the slip bowl of the traveling load-bearing slip 41, i.e., when the slip bowl of the traveling load-bearing slip 41 is compressed downward and the slip bowl touches the second position sensor 403, the second position sensor 403 signals that the traveling load-bearing slip 41 is compressed in place, as shown in fig. 9.
Referring to fig. 10 again, in this embodiment, the fixed load-bearing slips 51 and the fixed anti-propping slips 52 are oppositely arranged, the slip bottom plates 109 of the fixed load-bearing slips 51 and the fixed anti-propping slips are fixedly connected through at least three second fixing columns 501, and at least one second fixing column 501 is provided with a third position sensor 502 and a fourth position sensor 503, and the third position sensor 502 is matched with the slip seat of the fixed anti-propping slips 52 to realize the state detection of whether the fixed anti-propping slips 52 are compressed, namely, when the slip seat of the fixed anti-propping slips 52 is compressed upwards, the third position sensor 502 sends a signal that the fixed anti-propping slips 52 are compressed in place. Also, the fourth position sensor 503 is configured to detect whether the fixed load-bearing slips 51 are compressed by cooperating with the slip bowl of the fixed load-bearing slips 51, i.e., when the slip bowl of the fixed load-bearing slips 51 is compressed downward, the fourth position sensor 503 signals that the fixed load-bearing slips 51 are compressed in place when the slip bowl touches the fourth position sensor 503.
Referring again to fig. 11, the lift cylinder 2 includes a cylinder tube 21 and a piston rod 22. The cylinder 21 is fixed on the fixed frame 1, the piston rod 22 is connected with the traveling cross beam 3, and under the action of the lifting oil cylinder 2, the traveling cross beam 3 is driven to lift, and then the traveling slip seat 4 is driven to realize the lifting function.
In a preferred embodiment, a fifth position sensor 201 is disposed inside the lift cylinder 2. The fifth position sensor 201 adopts a built-in magnetic scale sensor, and comprises a magnetic ring 23 and a detection rod 24. The magnetic ring 23 is fixed at the bottom of the piston rod 22, the interior of the piston rod 22 is of a hollow structure and can accommodate the detection rod 24, the lower end of the detection rod 24 is fixed at the bottom of the cylinder 21, and the upper end of the detection rod passes through the magnetic ring 23. When the piston rod 22 moves, the detection rod 24 and the magnetic ring 23 generate relative displacement, the fifth position sensor 201 can transmit displacement data to the remote control system 7 through a data transmission line, judge the position signal of the traveling cross beam 3 in real time, and send out an action command through remote logic control, so that alternate actions among the lifting cylinder 2, the traveling slip group 4 and the fixed slip group 5 are realized, and remote automatic control of the pipe column is automatically completed.
Referring again to fig. 1, the automatic control device for a pressurized working string according to the present embodiment further includes a control mechanism 7 connected to the slip on/off sensor 120, the first position sensor 402, the second position sensor 403, the third position sensor 502, the fourth position sensor 503, and the fifth position sensor 201. The control mechanism 7 controls the opening and closing cylinder 106 in the traveling bearing slip 41, the traveling anti-jacking slip 42, the fixed bearing slip 51 and the fixed anti-jacking slip 52 and the expansion and contraction of the lifting cylinder 2 according to detection signals of the slip opening and closing sensor 120, the first position sensor 402, the second position sensor 403, the third position sensor 502, the fourth position sensor 503 and the fifth position sensor 201, so as to realize remote automatic control of the pressurized operation pipe column.
The automatic control device for the pressurized operation pipe column can realize automatic control of the pressurized operation pipe column, and the specific automatic control method comprises a pressurized operation pipe column pipe lifting automatic control mode and a pressurized operation pipe column pipe discharging automatic control mode.
Referring to fig. 13, the automatic control mode for lifting the pipe by the pressurized operation pipe column comprises the following steps:
s1, judging whether the initialization is finished by the control mechanism 7, if the initialization is not finished, executing the initialization action, and if the initialization is finished, controlling the slip opening and closing cylinders 106 of the traveling slip group 4 to retract, and ensuring that the traveling bearing slips 41 and the traveling anti-jacking slips 42 clamp the pipe column under the detection of the corresponding slip opening and closing sensors 120.
The initialization state of the method is as follows: the slip opening and closing cylinders 106 of the traveling slip group 4 are all in an extending state, the slip opening and closing cylinders 106 of the fixed slip group 5 are all in a retracting state, and the lifting cylinder 2 is in an initial retracting state, and the logic flow chart is shown in fig. 12. The initialization actions are as follows: the control system 7 sequentially determines whether the fixed bearing slips 51 and the fixed anti-jacking slips 52 in the fixed slip group 5 are in a clamping state, whether the movable bearing slips 41 and the movable anti-jacking slips 42 in the movable slip group 4 are in an opening state or not, and whether the movable cross beam 3 is in an initial retracted position but not in a very low position according to the detection data of the fifth position sensor 201 according to the data transmitted by the slip on-off sensors 120 in the movable slip group 4 and the fixed slip group 5. If the hydraulic cylinder is not in the set initialization state position, controlling the corresponding hydraulic cylinder to execute the initialization setting action until the initialization is completed.
S2, the control mechanism 7 controls the lifting cylinder 2 to retract slowly further, compression of the floating anti-jacking slip 42 and the fixed bearing slip 51 at the uppermost end and the lowermost end is formed, the first position sensor 402 detects that the floating anti-jacking slip 42 is compressed in place, the fourth position sensor 503 detects that the fixed bearing slip 51 is compressed in place, and retraction of the lifting cylinder 2 is stopped when the fifth position sensor 201 detects that the lifting cylinder 2 reaches a limit low position.
S3, at the moment, the fixed bearing slips 51 and the movable anti-jacking slips 42 are in a compression state, so that the pipe column and the fixed anti-jacking slips 52 move relatively, the load of the pipe column is released, the fixed anti-jacking slips 52 are easy to open, at the moment, the opening and closing oil cylinders 106 of the fixed anti-jacking slips 52 are controlled to extend out, and the fixed anti-jacking slips 52 are opened; the lifting cylinder 2 is controlled to slowly extend, at the moment, the load of the fixed bearing slip 51 is also completely released, the opening and closing cylinder 106 of the fixed bearing slip 51 can be controlled to extend, and the fixed bearing slip 51 is opened.
S4, after the slip opening and closing sensor 120 detects that the fixed anti-jacking slip 52 and the fixed bearing slip 51 are completely opened, the lifting oil cylinder 2 starts to lift according to the set lifting speed and amplitude, the traveling slip group 4 drives the pipe column to lift, and after the fifth position sensor 201 detects that the lifting oil cylinder 2 reaches the set height, the control mechanism 7 controls the lifting oil cylinder 2 to stop lifting.
S5, controlling the slip opening and closing cylinders 106 of the fixed slip group 5 to retract, and ensuring that the fixed bearing slips 51 and the fixed anti-jacking slips 52 clamp a pipe column under the detection of the corresponding slip opening and closing sensors 120; the control mechanism 7 controls the lifting cylinder 2 to slowly extend again to form compression on the floating bearing slips 41 and the fixed anti-jacking slips 52 in the middle, the second position sensor 403 detects that the floating bearing slips 41 are compressed in place, the third position sensor 502 detects that the fixed anti-jacking slips 52 are compressed in place, and the fifth position sensor 201 detects that the lifting cylinder 2 reaches a limit high position, the extending of the lifting cylinder 2 is stopped.
S6, when the traveling bearing slips 41 and the fixed anti-jacking slips 52 are in a compression state, the pipe column and the traveling anti-jacking slips 42 move relatively, the load of the pipe column is released, so that the traveling anti-jacking slips 42 are easy to open, the opening and closing oil cylinders 106 of the traveling anti-jacking slips 42 are controlled to extend, and the traveling anti-jacking slips 42 are opened; the lifting cylinder 2 is controlled to slowly retract, at the moment, the load of the traveling bearing slips 41 is also completely released, the opening and closing cylinder 106 of the traveling bearing slips 41 can be controlled to extend, the traveling bearing slips 41 are opened, after the slip opening and closing sensor 120 detects that the traveling anti-jacking slips 42 and the traveling bearing slips 41 are completely opened, the lifting cylinder 2 drives the traveling slip group 4 to descend according to the set descending speed and amplitude, when the fifth position sensor 201 detects that the lifting cylinder 2 reaches an initialization position, the lifting cylinder 2 is controlled to stop, a pipe column lifting action is completed, and the steps S1-S6 are repeated, so that continuous pipe lifting operation is realized.
Referring to fig. 14, the automatic control mode for the running of the pipe string under pressure operation includes the following steps:
t1, judging whether the initialization is completed or not by the control mechanism 7, and if the initialization is not completed, executing an initialization action, wherein the initialization state is the same as that described above; if the lifting cylinder 2 is completed, the traveling slip group 4 is controlled to be driven to ascend, and after the fifth position sensor 201 detects that the lifting cylinder 2 reaches the set height, the control mechanism 7 controls the lifting cylinder 2 to stop ascending.
And T2, controlling the slip opening and closing cylinders 106 of the traveling slip group 4 to retract, and ensuring that the traveling bearing slips 41 and the traveling anti-jacking slips 42 clamp the pipe column under the detection of the corresponding slip opening and closing sensors 120.
And T3, after the corresponding slip opening and closing sensor 120 ensures that the traveling bearing slips 41 and the traveling anti-jacking slips 42 clamp the pipe column, the control mechanism 7 controls the lifting oil cylinder 2 to slowly stretch out to form compaction of the traveling bearing slips 41 and the fixed anti-jacking slips 52 in the middle, the second position sensor 403 detects that the traveling bearing slips 41 are compacted in place, the third position sensor 502 detects that the fixed anti-jacking slips 52 are compacted in place, and the fifth position sensor 201 detects that the lifting oil cylinder 2 reaches a limit high position, and the lifting oil cylinder 2 stretches out.
T4, when the fixed anti-jacking slip 52 and the traveling bearing slip 41 are in a compression state, the pipe column and the fixed bearing slip 51 move relatively, the load of the pipe column is released, so that the fixed bearing slip 51 is easy to open, the opening and closing oil cylinder 106 of the fixed bearing slip 51 is controlled to extend, and the fixed bearing slip 51 is opened; the lifting cylinder 2 is controlled to retract slowly, at the moment, the load of the fixed anti-jacking slip 52 is also completely released, the opening and closing cylinder 106 of the fixed anti-jacking slip 52 can be controlled to extend, and the fixed anti-jacking slip 52 is opened.
And T5, after the slip opening and closing sensor 120 detects that the fixed bearing slips 51 and the fixed anti-jacking slips 52 are completely opened, the lifting oil cylinder 2 starts to descend according to the set descending speed and amplitude, the traveling slip group 4 drives the pipe column to descend, and after the fifth position sensor 201 detects that the lifting oil cylinder 2 reaches the set height, the control mechanism 7 controls the lifting oil cylinder 2 to stop descending.
T6, controlling the slip opening and closing cylinders 106 of the fixed slip group 5 to retract, and ensuring that the fixed bearing slips 51 and the fixed anti-jacking slips 52 clamp the pipe column under the detection of the corresponding slip opening and closing sensors 120; the control mechanism 7 again controls the lift cylinder 2 to retract slowly, forming a compression of the traveling anti-jack slips 42 and the fixed load-bearing slips 51 at the uppermost and lowermost ends, the compression of the traveling anti-jack slips 42 in place being detected by the first position sensor 402, and the compression of the fixed load-bearing slips 51 in place being detected by the fourth position sensor 503, and the retraction of the lift cylinder 2 being stopped when the lift cylinder 2 reaches the limit low position being detected by the fifth position sensor 201.
T7. when the fixed bearing slips 51 and the moving anti-jacking slips 42 are in a compressed state, the pipe column and the moving bearing slips 41 move relatively, the load of the pipe column is released, so that the moving bearing slips 41 are easy to open, the opening and closing cylinder 106 of the moving bearing slips 41 is controlled to extend, and the moving bearing slips 41 are opened; when the lifting oil cylinder 2 is controlled to slowly extend to reach an initialization position, the load of the floating anti-jacking slip 42 is completely released at the moment, the opening and closing oil cylinder of the floating anti-jacking slip 42 can be controlled to extend, the floating anti-jacking slip 42 is opened, a pipe column pipe-discharging action is completed, the processes of the steps T1-T7 are repeated, and continuous pipe-discharging operation is achieved.
The opening and closing oil cylinder and the lifting oil cylinder are provided by the existing hydraulic power source, belong to common sense technology and are not repeated.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present invention.
Claims (10)
1. The utility model provides an elastic slip, includes slip seat, slip body, tooth board, slip movable plate, connecting rod and switching hydro-cylinder, the slip seat adopts the hollow base of back taper, the slip body includes a plurality of, and a plurality of slip bodies radially set up in the centre bore of slip seat, the lateral wall of the slip body with the centre bore toper inner wall shape matching of slip seat, set up on the inside wall of the slip body the tooth board, a plurality of the tooth board is used for with tubular column periphery contact, the upper portion of the slip body passes through the connecting rod with the slip movable plate articulates, switching hydro-cylinder one end is connected the slip seat, the other end is connected the slip movable plate, the switching hydro-cylinder is through the drive a plurality of the slip movable plate goes up and down the slip body is in the lift in the slip seat centre bore, and then realize the clamp of tooth board is in the control of tubular column, its characterized in that still including setting up the bottom plate of slip seat bottom, the upper portion of bottom plate is equipped with around the guide ring groove of centre bore's bottom plate, the bottom of slip seat is equipped with and stretches into in the bottom the guide ring groove, just the guide disc is equipped with down the guide ring groove and the guide disc is equipped with the guide ring groove, just the guide disc is equipped with down the guide ring groove, the guide disc is equipped with the guide ring groove is equipped with for the annular groove under the effect with the guide disc, the guide disc is with the guide groove is corresponding to the guide groove under the bottom plate.
2. The elastic slip of claim 1, further comprising a slip on/off sensor for detecting the slip on/off state.
3. The elastic slip of claim 2, wherein the slip on-off sensor is an external pull wire sensor, one end of the external pull wire sensor is connected with the slip moving plate, and the other end is connected with the slip seat.
4. The elastic slip of claim 1, wherein the outer wall of the guide ring groove is provided intermittently, and the outer wall of the guide ring groove has a height greater than the height of the inner wall thereof.
5. The automatic control device for the pressurized operation pipe column comprises a fixed frame, a working blowout preventer, a lifting oil cylinder, a traveling crossbeam, a traveling slip group and a fixed slip group, wherein the fixed frame comprises a fixed upper plate and a fixed lower plate, the lifting oil cylinder is arranged between the fixed upper plate and the fixed lower plate, an extending rod of the lifting oil cylinder penetrates through the fixed upper plate and then is connected with the traveling crossbeam, the traveling slip group is arranged on the traveling crossbeam, and the fixed slip group is arranged on the fixed lower plate through the working blowout preventer;
The fixed slip group is including fixed bearing slips and fixed roof-proof slips, fixed bearing slips and fixed roof-proof slips all adopt claim 2 or 3 elasticity slips, fixed bearing slips and fixed roof-proof slips set up relatively, through at least three second fixed column fixed connection between its the slip bottom plate, and be equipped with third position sensor and fourth position sensor on at least one second fixed column, third position sensor through with the slip seat cooperation of fixed roof-proof slips realize right fixed roof-proof slips whether by the state detection of compressing tightly, fourth position sensor through with the slip seat cooperation realization of fixed bearing slips is right fixed bearing slips whether by the state detection of compressing tightly.
6. The automated control device for a pressurized work string of claim 5, wherein a fifth position sensor is disposed within the lift cylinder.
7. The automated control device for a pressurized work string of claim 6, wherein the fifth position sensor is a built-in magnetic scale sensor.
8. The automated control device for a pressurized working string according to claim 6, further comprising a control mechanism connected to the slip on-off sensor, the first position sensor, the second position sensor, the third position sensor, the fourth position sensor, and the fifth position sensor, wherein the control mechanism controls the traveling load-bearing slip, the traveling anti-jack slip, the fixed load-bearing slip, the fixed anti-jack slip, the on-off cylinder, and the telescoping of the lifting cylinder according to detection signals of the slip on-off sensor, the first position sensor, the second position sensor, the third position sensor, the fourth position sensor, and the fifth position sensor.
9. An automatic control method for a pressurized working string, which is characterized in that the method is realized by the automatic control device for the pressurized working string according to claim 8, and comprises a lifting automatic control mode for the pressurized working string and a lowering automatic control mode for the pressurized working string;
the automatic control mode for lifting the pipe of the pressurized operation pipe column comprises the following steps:
s1, judging whether the initialization is finished by the control mechanism, if the initialization is not finished, executing the initialization action, if the initialization is finished, controlling slip opening and closing cylinders of the traveling slip group to retract, and ensuring that the traveling bearing slips and the traveling anti-jacking slips clamp a tubular column under the detection of the corresponding slip opening and closing sensor;
s2, the control mechanism controls the lifting oil cylinder to retract slowly to form compression of the floating anti-jacking slip and the fixed bearing slip, the first position sensor detects that the floating anti-jacking slip is compressed in place, the fourth position sensor detects that the fixed bearing slip is compressed in place, and the lifting oil cylinder is stopped from retracting when the fifth position sensor detects that the lifting oil cylinder reaches a limit low position;
S3, controlling the opening and closing oil cylinders of the fixed anti-jacking slips to extend out, and opening the fixed anti-jacking slips; controlling the lifting oil cylinder to slowly extend out, controlling the opening and closing oil cylinder of the fixed bearing slip to extend out, and opening the fixed bearing slip;
s4, after the slip opening and closing sensor detects that the fixed anti-jacking slip and the fixed bearing slip are completely opened, the lifting oil cylinder drives the pipe column to ascend through the traveling slip group, and after the fifth position sensor detects that the lifting oil cylinder reaches a set height, the control mechanism controls the lifting oil cylinder to stop ascending;
s5, controlling the slip opening and closing cylinders of the fixed slip groups to retract, and ensuring that the fixed bearing slips and the fixed anti-jacking slips clamp a tubular column under the detection of the corresponding slip opening and closing sensors; the control mechanism controls the lifting oil cylinder to slowly extend out to form compression of the traveling bearing slips and the fixed anti-jacking slips, the second position sensor detects that the traveling bearing slips are compressed in place, the third position sensor detects that the fixed anti-jacking slips are compressed in place, and the lifting oil cylinder is stopped from extending out when the fifth position sensor detects that the lifting oil cylinder reaches a limit high position;
S6, controlling the opening and closing oil cylinders of the moving anti-jacking slips to extend out, and opening the moving anti-jacking slips; controlling the lifting oil cylinder to slowly retract, controlling the opening and closing oil cylinder of the traveling bearing slip to extend, opening the traveling bearing slip, driving the traveling slip group to descend after the slip opening and closing sensor detects that the traveling anti-jacking slip and the traveling bearing slip are completely opened, controlling the lifting oil cylinder to stop when the lifting oil cylinder reaches an initialization position by the fifth position sensor, completing one pipe column lifting action, repeating the steps S1-S6, and realizing continuous pipe lifting operation;
the automatic control mode for the pipe running of the pressurized operation pipe column comprises the following steps:
the control mechanism judges whether the initialization is finished or not, if the initialization is not finished, the initialization action is executed, if the initialization is finished, the lifting oil cylinder is controlled to drive the traveling slip group to ascend, and after the fifth position sensor detects that the lifting oil cylinder reaches the set height, the control mechanism controls the lifting oil cylinder to stop ascending;
and T2, controlling slip opening and closing cylinders of the traveling slip group to retract, and ensuring that the traveling bearing slips and the traveling anti-jacking slips clamp a tubular column under the detection of the corresponding slip opening and closing sensor;
The control mechanism controls the lifting oil cylinder to slowly extend after the corresponding slip opening and closing sensors ensure that the traveling bearing slips and the traveling anti-jacking slips clamp a pipe column, so that the traveling bearing slips and the fixed anti-jacking slips are tightly pressed, the second position sensor detects that the traveling bearing slips are tightly pressed in place, the third position sensor detects that the fixed anti-jacking slips are tightly pressed in place, and the fifth position sensor detects that the lifting oil cylinder reaches a limit high position, so that the lifting oil cylinder is stopped from extending;
and T4, controlling the opening and closing oil cylinders of the fixed bearing slips to extend out, and opening the fixed bearing slips; controlling the lifting oil cylinder to retract slowly, controlling the opening and closing oil cylinder of the fixed anti-jacking slip to extend out, and opening the fixed anti-jacking slip;
t5, after the slip opening and closing sensor detects that the fixed bearing slip and the fixed anti-jacking slip are completely opened, the lifting oil cylinder drives the pipe column to descend through the traveling slip group, and after the fifth position sensor detects that the lifting oil cylinder reaches a set height, the control mechanism controls the lifting oil cylinder to stop descending;
And T6, controlling the slip opening and closing cylinders of the fixed slip groups to retract, and ensuring that the fixed bearing slips and the fixed anti-jacking slips clamp the pipe column under the detection of the corresponding slip opening and closing sensors; the control mechanism controls the lifting oil cylinder to retract slowly to form compression of the moving anti-jacking slip and the fixed bearing slip, the first position sensor detects that the moving anti-jacking slip is compressed in place, the fourth position sensor detects that the fixed bearing slip is compressed in place, and the lifting oil cylinder is stopped from retracting when the fifth position sensor detects that the lifting oil cylinder reaches a limit low position;
t7, controlling the opening and closing cylinder of the travelling bearing slip to extend out, and opening the travelling bearing slip; when the lifting oil cylinder is controlled to slowly extend to reach an initial position, the opening and closing oil cylinder of the moving anti-jacking slip is controlled to extend, the moving anti-jacking slip is opened, a pipe column pipe-discharging action is completed once, and the processes of the steps T1-T7 are repeated, so that continuous pipe-discharging operation is realized.
10. The automated control method of a pressurized working string according to claim 9, wherein the method is initialized as follows: the slip opening and closing cylinders of the traveling slip group are in an extending state, the slip opening and closing cylinders of the fixed slip group are in a retracting state, and the lifting cylinder is in an initial retracting state.
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|---|---|---|---|
| CN202311017170.6A CN116733389B (en) | 2023-08-14 | 2023-08-14 | Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311017170.6A CN116733389B (en) | 2023-08-14 | 2023-08-14 | Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method |
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| CN116733389A true CN116733389A (en) | 2023-09-12 |
| CN116733389B CN116733389B (en) | 2023-10-17 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389760A (en) * | 1979-12-07 | 1983-06-28 | Varco International, Inc. | Well slip unit |
| CN1609407A (en) * | 2004-11-12 | 2005-04-27 | 崔时光 | Automatic oil well repairing apparatus |
| CN201292789Y (en) * | 2008-12-01 | 2009-08-19 | 成都西油联合石油天然气工程技术有限公司 | Multipurpose pipe column pneumatic slips |
| CN204002629U (en) * | 2014-07-21 | 2014-12-10 | 扬州诚创石油机械有限公司 | A kind of split type drilling tool power slip that can Fast Installation |
| CN204040947U (en) * | 2014-07-01 | 2014-12-24 | 罗辉 | Flow string fetching device |
| CN104314486A (en) * | 2014-11-14 | 2015-01-28 | 中国石油大学(北京) | Hydraulic power slip of removable oil string |
| CN104358530A (en) * | 2014-11-12 | 2015-02-18 | 霸州市石大宏盛石化机械有限责任公司 | Vertical tar tube anti-jacking slip |
| CN210396619U (en) * | 2019-07-05 | 2020-04-24 | 江苏省无锡探矿机械总厂有限公司 | Big through-hole drilling machine power head suitable for RJP and MJS worker method |
| CN115977557A (en) * | 2023-03-22 | 2023-04-18 | 四川圣诺油气工程技术服务有限公司 | Oil pipe lifting control device for operation under pressure |
-
2023
- 2023-08-14 CN CN202311017170.6A patent/CN116733389B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389760A (en) * | 1979-12-07 | 1983-06-28 | Varco International, Inc. | Well slip unit |
| CN1609407A (en) * | 2004-11-12 | 2005-04-27 | 崔时光 | Automatic oil well repairing apparatus |
| CN201292789Y (en) * | 2008-12-01 | 2009-08-19 | 成都西油联合石油天然气工程技术有限公司 | Multipurpose pipe column pneumatic slips |
| CN204040947U (en) * | 2014-07-01 | 2014-12-24 | 罗辉 | Flow string fetching device |
| CN204002629U (en) * | 2014-07-21 | 2014-12-10 | 扬州诚创石油机械有限公司 | A kind of split type drilling tool power slip that can Fast Installation |
| CN104358530A (en) * | 2014-11-12 | 2015-02-18 | 霸州市石大宏盛石化机械有限责任公司 | Vertical tar tube anti-jacking slip |
| CN104314486A (en) * | 2014-11-14 | 2015-01-28 | 中国石油大学(北京) | Hydraulic power slip of removable oil string |
| CN210396619U (en) * | 2019-07-05 | 2020-04-24 | 江苏省无锡探矿机械总厂有限公司 | Big through-hole drilling machine power head suitable for RJP and MJS worker method |
| CN115977557A (en) * | 2023-03-22 | 2023-04-18 | 四川圣诺油气工程技术服务有限公司 | Oil pipe lifting control device for operation under pressure |
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| CN116733389B (en) | 2023-10-17 |
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