CN113492142B - Oil pipeline dredging method and system - Google Patents

Oil pipeline dredging method and system Download PDF

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Publication number
CN113492142B
CN113492142B CN202010256746.4A CN202010256746A CN113492142B CN 113492142 B CN113492142 B CN 113492142B CN 202010256746 A CN202010256746 A CN 202010256746A CN 113492142 B CN113492142 B CN 113492142B
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China
Prior art keywords
drill
oil pipeline
rod
drill rod
target oil
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CN113492142A (en
Inventor
曲乃涛
郑敏
李春雨
从立剑
宋楠英
徐丹丹
侯晓梅
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Petrochina Co Ltd
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Petrochina Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses and provides an oil pipeline dredging device which comprises a drilling machine (2), wherein a drill bit (202) is in threaded connection with a first end of a drill rod (201); the drilling machine (2) also comprises a clamp holder (203) and a rod rotating device (204) which are sleeved on the drill rod (201); the spinner (204) is configured to drive the drill rod (201) to rotate; the drilling machine (2) further comprises a slide way (205), and the rod rotator (204) is suitable for moving along the slide way (205) and the moving direction is coaxial with the drill rod (201); the cable (4) is connected with the winch (3) and the spherical pig (5), and the spherical pig (5) is pulled by the cable (4) when the winch (3) operates; the spherical pig (5) is configured to replace the drill bit (202), and the outer diameter of the spherical pig (5) is adapted to the inner diameter of the target oil pipeline (1). Therefore, the target oil pipeline (1) is dredged by the drilling machine (2) and the winch (3).

Description

Oil pipeline dredging method and system
Technical Field
The disclosure relates to the field of oil pipeline maintenance, in particular to an oil pipeline dredging method and system.
Background
The oil pipeline system is mainly composed of oil pipelines, oil transportation stations and other auxiliary related equipment, is one of main equipment in the oil storage and transportation industry, is also the most main transportation equipment for crude oil and oil products, and has the characteristics of large transportation volume, good tightness, low cost, high safety factor and the like compared with the railway and highway oil transportation belonging to a land transportation mode.
Because the inner wall of the oil pipeline possibly has the defects of welding beading, inner misalignment and the like, and is not smooth, oil sludge can be deposited inside the oil pipeline in the oil transportation process which lasts for a long time, and the flow of the oil pipeline can be influenced after the oil sludge is accumulated to a certain degree, even the oil pipeline is blocked.
There are at least the following problems in the related art:
in the correlation technique, after the oil pipeline is blocked, the mode of directly replacing the pipeline is adopted, a large amount of manpower, equipment, materials and steel pipes are needed, meanwhile, farmlands are required to be excavated, natural vegetation of the soil is damaged, the consumed time is long, and pipeline residual oil generated by replacing the pipeline can be scattered on the soil along with the processes of cutting, hoisting, carrying and the like, so that the soil quality is seriously polluted.
Disclosure of Invention
In view of the above, the present disclosure provides an oil pipeline dredging device and method.
Specifically, the method comprises the following technical scheme:
in one aspect, the present disclosure provides an oil pipeline dredging device for dredging a target oil pipeline, the device comprising a drilling machine, a winch, a cable and a pigging ball:
the drilling machine includes a drill rod and a drill bit threadedly connected to a first end of the drill rod.
The drilling machine also comprises a clamp and a rod rotating device which are sleeved on the drill rod.
The gripper is configured to grip the drill rod and prevent rotation of the drill rod when in the closed state and to disengage from the drill rod when in the open state.
The spinner is configured to grip the drill rod and drive the drill rod to rotate when in a closed state and to separate the drill rod from each other when in an open state.
The drilling machine further comprises a slideway, the rod rotating device is suitable for moving along the slideway, and the moving direction of the rod rotating device along the slideway is coaxial with the drill rod.
The cable is connected with the winch and the spherical pig, and the winch pulls the spherical pig by the cable when in operation.
The spherical pig is configured to threadably engage the first end of the drill rod and replace the drill bit, the spherical pig having an outer diameter that is compatible with an inner diameter of the target oil pipeline.
Optionally, the drill rod comprises a first section of drill rod and at least one second section of drill rod, wherein:
the second end of the drill bit is in threaded connection with the first end of the first section of drill rod, and the second end of the first section of drill rod is in threaded connection with the first end of the next section of drill rod which is close to the first end of the first section of drill rod.
The drill bit comprises a grinding head arranged at the first end, at least two guide joints symmetrically arranged on the outer wall and at least two reaming joints.
The pilot section is closer to the first end of the drill bit than the reamer section.
The height of the guide joint is smaller than that of the reaming joint.
In another aspect, the present disclosure provides an oil pipeline dredging method applied to the oil pipeline dredging apparatus of the first aspect, including:
two operation pits are respectively arranged at the upstream and downstream of the target oil pipeline, the two operation pits comprise a first operation pit and a second operation pit, and two ports of the target oil pipeline are respectively positioned in the two operation pits.
The drilling machine is placed in a first operating pit, and the winch is placed in a second operating pit.
Controlling the drilling machine to enter a drilling stage, comprising: and loosening the clamp, closing the rotating rod device, enabling the rotating rod device to rotate forward and move to the target oil pipeline along the slide way, driving the drill rod to rotate, driving the drill bit to start drilling, enabling the drill bit to drill from the first port of the target oil pipeline exposed out of the first operating pit, and continuously drilling until the drill bit drills from the second port of the target oil pipeline exposed out of the second operating pit.
The drill bit is removed from the first end of the drill pipe and the spherical pig is connected to the first end of the drill pipe.
Controlling the drilling machine to enter a retreat stage, comprising: and loosening the clamp, closing the rotating rod device, enabling the rotating rod device to move towards the side far away from the target oil pipeline along the slide way, and driving the spherical pig to move towards the first port of the target oil pipeline through the drill rod until the spherical pig exits from the first port of the target oil pipeline exposed out of the first operating pit.
And disconnecting the drill pipe and the spherical pig.
And controlling the winch to pull the spherical pig through the target oil pipeline by the cable until the spherical pig is released from the second port of the second operation pit exposed out of the target oil pipeline.
Optionally, the gripper is disposed between the spinner and the target oil delivery pipeline, the method further comprising:
in the drilling stage, when the rotating rod device moves to the target oil pipeline along the slide way until the distance between the rotating rod device and the clamp is equal to a first preset distance, the rotating rod device is loosened, and the clamp is closed.
And moving the rod rotator along the slideway to the second end of the drill rod for a second preset distance.
And (4) loosening the clamp, closing the rotating rod device, enabling the rotating rod device to rotate forwards and move towards the target oil pipeline along the slide way, and further driving the drill rod to continue to rotate in the target oil pipeline and driving the drill bit to continue to drill.
Optionally, the method further comprises:
and in the drilling stage, when the distance between the clamp and the second end of the first section of the drill rod is less than a third preset distance, closing the clamp and loosening the rod rotating device.
And attaching the first end of the secondary section of the drill rod to the second end of the primary section of the drill rod.
And the rotating rod device is moved to the next section of drill rod along the slide way.
And loosening the clamp, closing the rotating rod device, enabling the rotating rod device to rotate forwards and move to the target oil pipeline along the slide way, and further driving the first end of the second section of drill rod to be connected with the second end of the first section of drill rod through threads.
The rotating rod device continues to rotate forwards and moves towards the target oil pipeline along the slide way, the drill rod is driven to continue to rotate in the target oil pipeline, and the drill bit is driven to continue to drill.
Optionally, when the number of the secondary drill rods is greater than 1, a plurality of secondary drill rods are connected end to end by using threads, and the method further comprises the following steps:
and in the drilling stage, when the distance between the clamp and the second end of the previous next section of the drill rod is less than a third preset distance, closing the clamp and loosening the rod rotating device.
And attaching the first end of the next section of the drill rod to the second end of the previous section of the drill rod.
And the rotating rod device is moved to the next section of drill rod along the slide way.
And loosening the clamp, closing the rotating rod device, enabling the rotating rod device to rotate forwards and move to the target oil pipeline along the slide way, and further driving the first end of the next-section drill rod to be connected with the second end of the previous-section drill rod through threads.
The rotating rod device continues to rotate forwards and moves towards the target oil conveying pipeline along the slide way, so that the drill rod is driven to continue to rotate forwards in the target oil conveying pipeline, and the drill bit is driven to continue to drill.
Optionally, the method further comprises:
in the backward stage, the clamp is loosened, the rotating rod device is closed, the rotating rod device stops rotating and moves to the side far away from the target oil pipeline along the slide way, and the drill rod is driven to be drawn out of the target oil pipeline.
Optionally, when the number of the secondary drill rods is greater than 1, the method further comprises:
in the backward stage, when the joint between two secondary drill rods is positioned between the clamp and the rotating rod device, the clamp is loosened, the rotating rod device is closed, the rotating rod device is reversely rotated, and the first end of the next secondary drill rod is driven to be disconnected with the second end of the previous secondary drill rod.
And unloading the next section of the drill rod.
Optionally, the method further comprises:
in the retreating stage, when the connecting part between the first section of the drill rod and the second section of the drill rod is positioned between the clamp and the rotating rod device, the clamp is loosened, the rotating rod device is closed, the rotating rod device is reversed, and the first end of the second section of the drill rod and the second end of the first section of the drill rod are driven to be disconnected in a threaded mode.
And unloading the secondary section of the drill rod.
Optionally, the method further comprises after the spherical pig is withdrawn from the target oil pipeline out of the first port of the first operating pit, before disconnecting the connection between the drill pipe and the spherical pig.
And (4) without disconnecting the connection between the drill rod and the spherical pig, loosening the clamp and the rod rotating device, and controlling the winch to pull the spherical pig to pass through the target oil pipeline through the cable until the spherical pig is exposed out of the second port of the second operation pit from the target oil pipeline.
And controlling the drilling machine to enter a retreating stage, loosening the clamp, closing the rotating rod device, enabling the rotating rod device to move towards the side far away from the target oil pipeline along the slide way, and driving the pigging ball to move towards the first port of the target oil pipeline through the drill rod until the pigging ball is exposed out of the first port of the first operating pit from the target oil pipeline and exits.
The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:
the oil pipeline dredging device and the method provided by the embodiment are used for dredging a target oil pipeline, and the device comprises a drilling machine, a winch, a cable and a pigging ball: the first end of drilling rod is provided with the drill bit, and the rig still includes holder and the spinner on the drilling rod of cover, and the holder is used for preventing the drilling rod rotatory to conveniently dismantle or assemble the drilling rod, and the spinner is used for driving the drilling rod rotatory, and the spinner still is suitable for and moves along the slide, and the direction of removal is coaxial with the drilling rod, and the hoist engine utilizes hawser tractive spherical pig when the function. The drill bit can be replaced by the spherical pig, and the outer diameter of the spherical pig is matched with the inner diameter of the target oil pipeline, so that the cleaning effect is achieved. Therefore, the drilling machine and the winch can be fully utilized, the target oil conveying pipeline is dredged by the aid of the drill bit and the pigging ball, the target oil conveying pipeline can be dredged conveniently and quickly, dredging efficiency is improved, and environmental pollution is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil pipeline dredging device provided by an embodiment of the disclosure;
FIG. 2 is another schematic structural diagram of an oil pipeline dredging device provided by the embodiment of the disclosure;
FIG. 3 is another schematic structural diagram of an oil pipeline dredging device provided by the embodiment of the disclosure;
FIG. 4 is a schematic structural diagram of a drill bit of an oil pipeline dredging device provided by the embodiment of the disclosure;
fig. 5 is a flowchart of an oil pipeline dredging method provided by an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an implementation process of an oil pipeline dredging method provided by an embodiment of the disclosure;
fig. 7 is a schematic structural diagram of another implementation process of an oil pipeline dredging method provided by the embodiment of the disclosure.
Detailed Description
In order to make the technical solutions and advantages of the present disclosure clearer, the following will describe embodiments of the present disclosure in further detail with reference to the accompanying drawings.
The embodiment of the present disclosure provides an oil pipeline dredging device, which is used for dredging a target oil pipeline 1, and as shown in fig. 1, the oil pipeline dredging device includes a drilling machine 2, a winding machine 3, a cable 4 and a spherical pig 5, and each part will be specifically described below:
the drilling rig 2 comprises a drill rod 201 and a drill bit 202 threadedly connected to a first end of the drill rod 201.
The first end of the drill rod 201 is the end which firstly enters the target oil pipeline 1 when in use, and the drill bit 202 is connected with the first end of the drill rod 201, so that after the drill bit 202 enters the target oil pipeline, the drill bit 202 can be driven to rotate by the rotation of the drill rod 201, and the drill bit 202 is used for dredging the blockage in the target oil pipeline 1.
It can be understood that it is inconvenient to use a longer drill rod 201, in order to achieve a longer dredging distance in a limited construction area, in an alternative mode, as shown in fig. 2, the drill rod 201 includes a first section of drill rod 2011 and at least one second section of drill rod 2012, so that the overall length of the drill rod is increased by using a combined drill rod mode in which a plurality of short rods are connected end to end, and the second sections of drill rods 2012 can be connected end to the second end of the first section of drill rod 2011 one by one in the dredging process, so as to gradually increase the number of the second sections of drill rods 2012, thereby prolonging the dredging distance as required.
When the secondary drill pipe 2012 is not connected and only the primary drill pipe 2011 is connected, the state of the drilling machine is as shown in fig. 3.
The second end of the drill bit 202 is threadedly connected to the first end of the first section 2011, and the second end of the first section 2011 is threadedly connected to the first end of the next adjacent section 2012.
The shape of the drill bit 202 is required to be suitable for dredging the pipe, so as shown in fig. 4, the drill bit 202 comprises a grinding head 2021 arranged at the first end, at least two guide joints 2022 symmetrically arranged on the outer wall and at least two reaming joints 2023;
the number of the guide joints 2022 and the reaming joints 2023 is the same, and may be 4, for example, which are symmetrically arranged at 3 o 'clock, 6 o' clock, 9 o 'clock, and 12 o' clock on the outer wall of the drill bit 202.
Pilot section 2022 is closer to the first end of drill bit 202 than reamer section 2023.
The height of the pilot section 2022 is less than the height of the reamer section 2023, where height refers to the vertical distance radially above the outer wall of the drill bit 202.
It will be appreciated that the guide section 2022 serves as a first step of dredging and the reaming section 2023 can be further reamed to increase the internal diameter of the target flow pipe 1.
In an alternative mode, the drill 202 may be hollow, an injection hole may be formed at the first end of the grinding head 2021, and high-pressure hot water may be injected into the drill 202, and the hot water may be injected from the injection hole of the grinding head 2021 to wash and soften the dirt in the target oil pipeline 1, thereby assisting the dredging.
The drilling rig 2 further comprises a gripper 203 and a spinner 204 that are fitted over the drill pipe 201.
The gripper 203 is configured to grip the drill rod 201 and prevent rotation of the drill rod 201 when in a closed state and to disengage from the drill rod 201 when in an open state.
The holder 203 is mainly used for fixing the drill rod 201 to be incapable of rotating so as to assemble or disassemble the drill rod 201.
The spinner bar 204 is configured to grip the drill rod 201 and drive the drill rod 201 to rotate when in the closed state and to be separated from the drill rod 201 when in the released state.
The spinner 204 may be hydraulically or electrically driven.
It is understood that when the spinner 204 is in the closed state to clamp the drill rod 201, the drill rod 201 may be driven to rotate forward (clockwise rotation), or the drill rod 201 may be driven to rotate backward (counterclockwise rotation), and at the same time, the drill rod 201 may not be driven to rotate.
The drilling rig 2 further comprises a slide 205, the spinner 204 being adapted to move along the slide 205, the spinner 204 being coaxial with the drill rod 201 in the direction of movement of the slide 205.
It will be appreciated that when the spinner 204 is in the closed position gripping the drill pipe 201, the spinner 204 may slide on the slips 205 if the spinner 204 does not drive the drill pipe 201 to rotate. Therefore, the drill rod 201 is driven to move axially only by the axial movement of the rod rotating device 204, and the drill rod 201 cannot rotate.
The cable 4 connects the hoist 3 and the spherical pig 5, and the hoist 3 pulls the spherical pig 5 by the cable 4 when operating.
It will be appreciated that a winch is a device which is driven electrically or hydraulically to convert axial rotary motion into axial motion of the cable 4.
The spherical pig 5 is configured to be threaded with a first end of the drill rod 201 and replace the drill bit 202, the outer diameter of the spherical pig 5 being adapted to the inner diameter of the target oil pipeline 1.
It can be understood that the outer diameter of the spherical pig 5 may be the same as the inner diameter of the target oil pipeline 1, or may be slightly smaller than the inner diameter, and the spherical pig 5 is used to continue to clean the residual dirt in the target oil pipeline 1 after the drill bit completes one-time dredging of the target oil pipeline 1.
The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:
the embodiment of the present disclosure provides an oil pipeline dredging device for dredging a target oil pipeline 1, the device includes a drilling machine 2, a winch 3, a cable 4 and a spherical pig 5: the first end of the drill rod 201 is provided with a drill bit 202, the drilling machine 2 further comprises a holder 203 and a rotating rod device 204, the holder 203 is sleeved on the drill rod 201 and used for preventing the drill rod 201 from rotating so as to conveniently disassemble or assemble the drill rod 201, the rotating rod device 204 is used for driving the drill rod 201 to rotate, the rotating rod device 204 is further suitable for moving along a slide way 205, the moving direction is coaxial with the drill rod 201, the winch 3 utilizes a cable 4 to pull the spherical pig 5 when in operation, the spherical pig 5 can replace the drill bit 202, and the outer diameter of the spherical pig 5 is matched with the inner diameter of the target oil pipeline 1 so as to play a cleaning role. Thereby make full use of rig 2 and hoist engine 3 dredge with the help of drill bit 202 and spherical pig 5 to target oil pipeline 1 to can dredge target oil pipeline 1 convenient and fast ground, improve mediation efficiency, reduce environmental pollution.
The embodiment of the present disclosure provides an oil pipeline dredging method, which may apply the oil pipeline dredging device, as shown in fig. 5, and includes steps S101, S102, S103, S104, S105, S106, and S107:
in step S101, two operation pits 6 are opened in the upstream and downstream of the target oil pipeline 1, respectively, and the two operation pits 6 include a first operation pit 601 and a second operation pit 602.
Two ports of the target oil pipeline 1 are respectively positioned in the two operation pits 6.
In an alternative mode, the first operating pit 601 has a length of 4m, a width of 2.5m and a depth of 500mm greater than the bottom depth of the target oil pipeline 1. The second operating pit 602 is 2m long, 1.5m wide, and 300-500mm deep than the pipe bottom of the target oil pipeline 1.
As shown in fig. 1, the right-hand pit in the figure is a first operation pit 601, and the left-hand pit is a second operation pit 602.
In an alternative way, before the two operating wells 6 are opened, it is also necessary to cut off the medium supply to the entire oil pipeline path and to completely empty the targeted oil pipeline 1 of the original transport medium.
In step S102, the drilling machine 2 is placed in the first operating pit 601, and the hoisting machine 3 is placed in the second operating pit 602.
In step S103, the drilling machine 2 is controlled to enter the drilling stage, the gripper 203 is released, the rotating rod 204 is closed, the rotating rod 204 rotates forward and moves along the slideway 205 towards the target oil pipeline 1, the drill rod 201 is driven to rotate, and the drill bit 202 is driven to start drilling, so that the drill bit 202 drills into the first port of the target oil pipeline 1 exposed from the first operating pit 601, and continues to drill until the drill bit 202 drills out of the second port of the target oil pipeline 1 exposed from the second operating pit 602.
In an alternative way, the gripper 203 is arranged between the spinner 204 and the target oil pipeline 1, and the drilling process is as follows:
during the drilling phase, when the spinner 204 is moved along the slide 205 towards the target oil pipeline 1 to a distance equal to a first preset distance from the gripper 203, the spinner 204 is released and the gripper 203 is closed.
The spinner 204 is moved a second predetermined distance along the slide 205 towards the second end of the drill rod 201.
And (3) loosening the clamp 203, closing the screw rod device 204, enabling the screw rod device 204 to rotate forwards and move towards the target oil pipeline 1 along the slide way 205, so as to drive the drill rod 201 to continuously screw in the target oil pipeline 1 and drive the drill bit 202 to continuously drill. Where forward rotation refers to clockwise rotation.
It will be appreciated that, limited by the position and length of the slide 205, when the spinner 204 is moved to a distance from the gripper 203 equal to the first predetermined distance, which indicates that the spinner 204 has been moved to the side of the slide 205 closest to the target oil pipeline 1, and has reached the maximum distance that the drill rod 201 can be rotated, it is necessary to move the spinner 204 to the second end of the drill rod 201 to change the active position to continue to rotate the drill rod 201 into the target oil pipeline 1. Specifically, the first preset distance may be set according to the position and length of the chute 205.
In an optional manner, the method further comprises:
during the drilling phase, when the distance between the holder 203 and the second end of the first section 2011 is less than a third predetermined distance, the holder 203 is closed and the spinner 204 is released. It will be appreciated that the distance between the gripper 203 and the second end of the first section 2011 is less than a third predetermined distance. It means that the length of the first drill rod 2011 is used up, and the first drill rod 2011 cannot be clamped and driven by the screw driver 204 to continue screwing in, and a new drill rod 2012 needs to be connected to the second end.
The first end of the secondary section of drill pipe 2012 is attached to the second end of the primary section of drill pipe 2011. In an alternative manner, the first end of the second drill pipe 2012 may be inserted into the second end of the first drill pipe 2011, but not threaded.
Causing the spinner 204 to move along the slide 205 onto the next section of drill pipe 2012.
And (3) loosening the clamp 203, closing the rod rotating device 204, enabling the rod rotating device 204 to rotate forwards and move towards the target oil conveying pipeline 1 along the slide way 205, and further driving the first end of the next section of drill rod 2012 to be connected with the second end of the first section of drill rod 2011 through threads.
It can be understood that, because the first end of the second drill rod 2012 is attached to the second end of the first drill rod 2011, when the rod rotating device 204 drives the second drill rod 2012 to rotate clockwise, the first end of the second drill rod 2012 can be automatically screwed to the second end of the first drill rod 2011, so that the threaded connection is established, and the connection does not need to be performed manually.
After the stable threaded connection is established between the first end of the secondary drill rod 2012 and the second end of the primary drill rod 2011, the secondary drill rod 2012 and the primary drill rod 2011 are rigidly connected, and the primary drill rod 2011 can be driven to rotate by the rotation of the secondary drill rod 2012.
The rotating rod 204 continues to rotate forward and moves to the target oil pipeline 1 along the slide 205, so as to drive the drill rod 201 to continue to rotate in the target oil pipeline 1 and drive the drill bit 202 to continue drilling.
It can be understood that if the length of the target oil pipeline 1 is long, and a section of the secondary drill pipe 2012 is connected with a section of the primary drill pipe 2011, the length of the whole target oil pipeline 1 cannot be reached, a plurality of secondary drill pipes 2012 need to be arranged.
In an alternative mode, when the number of the secondary drill rods 2012 is greater than 1, the plurality of secondary drill rods 2012 are adapted to be connected end to end by using threads, and the method further includes:
during the drilling phase, when the distance between the gripper 203 and the second end of the previous drill rod 2012 is less than a third preset distance, the gripper 203 is closed and the spinner 204 is released.
The first end of the next drill pipe 2012 is attached to the second end of the previous drill pipe 2012.
The spinner 204 is moved along the slide 205 onto the next subsequent section of drill pipe 2012.
And (3) loosening the clamp 203, closing the screw rod device 204, enabling the screw rod device 204 to rotate forwards and move towards the target oil conveying pipeline 1 along the slide way 205, and thus driving the first end of the next drill rod 2012 to be connected with the second end of the previous drill rod 2012 through the threads.
The rotating rod 204 continues to rotate forward and moves to the target oil pipeline 1 along the slide 205, so as to drive the drill rod 201 to continue to rotate in the target oil pipeline 1 and drive the drill bit 202 to continue drilling.
It will be appreciated that the process of establishing a connection between two secondary drill rods 2012 is similar to the process of establishing a connection between a secondary drill rod 2012 and a primary drill rod 2011.
After the drill bit 202 drills out from the second port of the target oil pipeline 1 exposing the second operating pit 602, the drill rod 201 can be started to be withdrawn, but before the withdrawal, the winch 3 and the spherical pig need to be fully utilized, so that the target oil pipeline 1 is further cleaned while the retreating stage is performed:
in step S104, the drill bit 202 is removed from the first end of the drill rod 201, and the spherical pig 5 is connected to the first end of the drill rod 201.
I.e. replacing the drill bit 202 with a spherical pig 5.
In step S105, the drilling machine 2 is controlled to enter the retreating stage, the gripper 203 is released, the rotating rod 204 is closed, the rotating rod 204 moves towards the side away from the target oil pipeline 1 along the slideway 205, and the spherical pig 5 is driven by the drill rod 201 to move towards the first port of the target oil pipeline 1 until the spherical pig 5 exits from the first port of the target oil pipeline 1 exposed out of the first operating pit 601.
In an alternative manner, the back-off phase specifically includes:
in the retreat stage, the gripper 203 is released, the spinner 204 is closed, the spinner 204 stops rotating and moves along the chute 205 to the side away from the target oil pipeline 1, and the drill rod 201 is pulled out of the target oil pipeline 1.
In an optional manner, when the number of the secondary drill rods 2012 is greater than 1, the method further includes:
in the backward stage, when the connection between two secondary drill rods 2012 is located between the holder 203 and the screw driver 204, the holder 203 is released, the screw driver 204 is closed, the screw driver 204 is reversely rotated, and the first end of the next secondary drill rod 2012 is driven to be disconnected from the second end of the previous secondary drill rod 2012 by screw thread;
and unloading the next drill pipe 2012.
In an optional manner, the method further comprises:
in the retreating stage, when the connection position between the first section of drill rod 2011 and the second section of drill rod 2012 is positioned between the clamp 203 and the rod rotating device 204, the clamp 203 is loosened, the rod rotating device 204 is closed, the rod rotating device 204 is reversed, and the first end of the second section of drill rod 2012 and the second end of the first section of drill rod 2011 are driven to be disconnected in a threaded manner;
the next section of drill pipe 2012 is unloaded.
It will be understood that the working steps of the entire drilling machine 2 and the drilling stage are opposite in the retreating stage, and the only difference is that in the retreating stage, when the threaded connection between the second drill rod 2012 and the first drill rod 2011 and between the second drill rod 2012 and the second drill rod 2012 is not required to be released by the rod driver 204, the rod driver 204 can directly extract the drill rod 201 without driving the drill rod 201 while moving along the slide 205 to the side far from the target oil pipeline 1.
In step S105, as shown in fig. 6, the pigging ball 5 is also driven by the drill rod 201 to perform a dredging and cleaning process for the target oil pipeline 1.
After the spherical pig 5 is exposed out of the first port of the first operating pit 601 from the target oil pipeline 1, the winch 3 is required to further function:
in step S106, the connection between the drill rod 201 and the spherical pig 5 is disconnected.
It will be appreciated that the spherical pig 5 is now not connected to the drill rod 201, but only to the cable 4 and the hoist 3.
In step S107, the hoist 3 is controlled to pull the spherical pig 5 through the target oil pipeline 1 by the cable 4 until the spherical pig 5 is released from the second port of the target oil pipeline 1 exposed from the second operating pit 602.
With the above step S107, as shown in fig. 7, the pigging ball 5 is caused to perform a dredging and cleaning process on the target oil pipeline again.
In the case that the target oil pipeline 1 has dirt which is difficult to clean, or is relatively contaminated, in an alternative mode, after the spherical pig 5 exits from the first port of the target oil pipeline 1 exposed from the first operating pit 601, before the connection between the drill rod 201 and the spherical pig 5 is disconnected, the method further comprises:
without disconnecting the connection between the drill pipe 201 and the spherical pig 5, the gripper 203 and the spinner 204 are released, and the winch 3 is controlled to pull the spherical pig 5 through the target oil pipeline 1 by the cable 4 until the spherical pig 5 emerges from the target oil pipeline 1 through the second port of the second operating pit 602.
And controlling the drilling machine 2 to enter a retreating stage, loosening the clamp 203, closing the rotating rod device 204, enabling the rotating rod device 204 to move towards the side far away from the target oil pipeline 1 along the slide way 205, and driving the spherical pig 5 to move towards the first port of the target oil pipeline 1 through the drill rod 201 until the spherical pig 5 is exposed out of the first port of the first operation pit 601 from the target oil pipeline 1 to exit.
Therefore, the cleaning ball 5 is used for carrying out a set of reciprocating cleaning process on the target oil pipeline 1, so that the dirt in the target oil pipeline 1 can be dredged better.
In an alternative way, in order to avoid the influence of the leaked crude oil on the ground in the dredging process, a collecting device can be respectively arranged on the first port of the target oil pipeline 1 exposed out of the first operating pit 601 and the second port of the target oil pipeline 1 exposed out of the second operating pit 602, and the crude oil cleaned out of the target oil pipeline 1 is collected.
The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:
the oil pipeline dredging method provided by the embodiment is applied to the oil pipeline dredging device in the first embodiment, and comprises the following steps: two operation pits 602, namely a first operation pit 601 and a second operation pit 602, are respectively arranged at the upstream and downstream of the target oil pipeline 1, and two ports of the target oil pipeline 1 are respectively positioned in the two operation pits 6; placing the drilling machine 2 in a first operating pit 601, and placing the winch 3 in a second operating pit 602; controlling the drilling machine 2 to enter a drilling stage, loosening the clamp 203, closing the rod rotating device 204, enabling the rod rotating device 204 to rotate forward and move towards the target oil pipeline 1 along the slide 205, so that the drill bit 202 is driven by the drill rod 201 to start drilling, the drill bit 202 is enabled to drill from a first port of the target oil pipeline 1 exposed out of the first operating pit 601, and the drilling is continued until the drill bit 202 is drilled from a second port of the target oil pipeline 1 exposed out of the second operating pit 602, and therefore the target oil pipeline 1 is cleaned and dredged by the drill bit 202 once; replacing the drill bit 202 with a spherical pig 5 after drilling; controlling the drilling machine 2 to enter a retreating stage, loosening the clamp 203, closing the rod rotating device 204, and enabling the rod rotating device 204 to move to the side far away from the target oil pipeline 1 along the slide way 205 until the spherical pig 5 is exposed out of the first port of the first operating pit 601 from the target oil pipeline 1; separating the drill rod 201 and the spherical pig 5, and controlling the winch 3 to pull the spherical pig 5 through the target oil pipeline 1 through the cable 4 until the spherical pig 5 is separated from the second port of the target oil pipeline 1 exposed out of the second operating pit 602, so that the spherical pig 5 is used for cleaning and dredging the target oil pipeline 1 again. Therefore, the target oil pipeline 1 is dredged conveniently and quickly, the dredging efficiency is improved, and the environmental pollution is reduced.
The present embodiment and the first embodiment are based on the same concept and are method embodiments corresponding to the first embodiment of the apparatus, so that it should be understood by those skilled in the art that the description of the first embodiment also applies to the present embodiment, and some technical details are not described in the present embodiment.
In the present application, it is to be understood that the terms "first" and "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
The above description is only for facilitating the understanding of the technical solutions of the present disclosure by those skilled in the art, and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims (9)

1. An oil pipeline dredging method is characterized in that the method is applied to an oil pipeline dredging device, the oil pipeline dredging device is used for dredging a target oil pipeline (1), and the oil pipeline dredging device comprises a drilling machine (2), a winding machine (3), a cable (4) and a pigging ball (5); the drilling machine (2) comprises a drill rod (201) and a drill bit (202) which is connected with a first end of the drill rod (201) in a threaded mode; the drilling machine (2) also comprises a clamp holder (203) and a rod rotating device (204) which are sleeved on the drill rod (201); the gripper (203) is configured to grip the drill rod (201) when in a closed state, prevent the drill rod (201) from rotating, and separate from the drill rod (201) when in an open state; the rod rotator (204) is configured to clamp the drill rod (201) and drive the drill rod (201) to rotate when in a closed state and separate from the drill rod (201) when in an open state; the drilling rig (2) further comprises a slideway (205), the screw driver (204) is suitable for moving along the slideway (205), and the direction of movement of the screw driver (204) along the slideway (205) is coaxial with the drill rod (201); the cable (4) is connected with the winch (3) and the spherical pig (5), and the winch (3) pulls the spherical pig (5) by using the cable (4) when in operation; the spherical pig (5) is configured to be screwed with the first end of the drill rod (201) and replace the drill bit (202), and the outer diameter of the spherical pig (5) is matched with the inner diameter of the target oil pipeline (1);
the method comprises the following steps:
two operation pits (6) are respectively arranged at the upstream and downstream of the target oil pipeline (1), the two operation pits (6) comprise a first operation pit (601) and a second operation pit (602), and two ports of the target oil pipeline (1) are respectively positioned in the two operation pits (6);
-placing the drilling rig (2) in the first operating pit (601), placing the hoisting machine (3) in the second operating pit (602);
-controlling the drilling machine (2) into a drilling phase, comprising: loosening the clamp (203), closing the screw rod device (204), enabling the screw rod device (204) to rotate forward and move towards the target oil pipeline (1) along the slide way (205), driving the drill rod (201) to rotate, driving the drill bit (202) to start drilling, enabling the drill bit (202) to drill from a first port of the target oil pipeline (1) exposed out of the first operating pit (601), and continuously drilling until the drill bit (202) drills from a second port of the target oil pipeline (1) exposed out of the second operating pit (602);
-removing the drill bit (202) from the first end of the drill rod (201) and connecting the spherical pig (5) to the first end of the drill rod (201);
-controlling the drilling machine (2) into a setback phase comprising: loosening the clamp (203), closing the screw rod device (204), enabling the screw rod device (204) to move to the side far away from the target oil pipeline (1) along the slide way (205), and driving the spherical pig (5) to move to the first port of the target oil pipeline (1) through the drill rod (201) until the spherical pig (5) is exposed out of the first port of the first operating pit (601) from the target oil pipeline (1);
disconnecting the drill rod (201) and the spherical pig (5);
and controlling the winch (3) to pull the spherical pig (5) to pass through the target oil pipeline (1) through the cable (4) until the spherical pig (5) is exposed out of a second port of the second operating pit (602) from the target oil pipeline (1).
2. The method according to claim 1, wherein the drill rod (201) comprises a first section of drill rod (2011) and at least one second section of drill rod (2012), wherein:
the second end of the drill bit (202) is in threaded connection with the first end of the first section of drill rod (2011), and the second end of the first section of drill rod (2011) is in threaded connection with the first end of the next section of drill rod (2012) which is adjacent to the second end of the first section of drill rod;
the drill bit (202) comprises a grinding head (2021) arranged at a first end, at least two guide sections (2022) symmetrically arranged on the outer wall and at least two reaming sections (2023);
the pilot section (2022) is closer to the first end of the drill bit (202) than the reamer section (2023);
the height of the guide joint (2022) is smaller than that of the reaming joint (2023).
3. The method according to claim 1, wherein the gripper (203) is arranged between the spinner (204) and the target oil pipeline (1), the method further comprising:
in the drilling stage, when the screw rod device (204) moves to the target oil pipeline (1) along the slide way (205) to reach a distance equal to a first preset distance from the clamp (203), the screw rod device (204) is released, and the clamp (203) is closed;
moving the spinner (204) a second preset distance along the slide (205) towards the second end of the drill rod (201);
and (3) loosening the clamp (203), closing the screw rod device (204), enabling the screw rod device (204) to rotate forwards and move towards the target oil pipeline (1) along the slide way (205), so as to drive the drill rod (201) to continuously screw in the target oil pipeline (1) and drive the drill bit (202) to continuously drill.
4. The method according to claim 2, wherein the oil pipeline pull through is as defined in claim 2, the method further comprising:
in the drilling stage, when the distance between the clamp (203) and the second end of the first section of drill rod (2011) is less than a third preset distance, closing the clamp (203) and releasing the rod rotator (204);
attaching a first end of a secondary section of drill rod (2012) to a second end of the primary section of drill rod (2011);
moving the spinner (204) along the slide (205) onto the secondary drill pipe (2012);
loosening the clamp (203), closing the rod rotating device (204), enabling the rod rotating device (204) to rotate forwards and move towards the target oil conveying pipeline (1) along the slide way (205), and driving the first end of the second section of drill rod (2012) to be in threaded connection with the second end of the first section of drill rod (2011);
the rotating rod device (204) continues to rotate forwards and moves towards the target oil pipeline (1) along the slide way (205), so that the drill rod (201) is driven to continue to rotate in the target oil pipeline (1), and the drill bit (202) is driven to continue to drill.
5. The method according to claim 4, wherein when the number of the secondary drill rods (2012) is greater than 1, a plurality of the secondary drill rods (2012) are adapted to be threaded end-to-end, the method further comprising:
in the drilling stage, when the distance between the gripper (203) and the second end of the previous drill rod (2012) of the next section is less than a third preset distance, closing the gripper (203) and releasing the spinner (204);
attaching the first end of the next drill rod (2012) to the second end of the previous drill rod (2012);
moving the spinner (204) along the slide (205) onto the next drill pipe (2012);
loosening the clamp (203), closing the rod rotating device (204), enabling the rod rotating device (204) to rotate forwards and move towards the target oil pipeline (1) along the slide way (205), and driving the first end of the next drill rod section (2012) to be connected with the second end of the previous drill rod section (2012) through threads;
the rotating rod device (204) continues to rotate forwards and moves towards the target oil pipeline (1) along the slide way (205), so that the drill rod (201) is driven to continue to rotate in the target oil pipeline (1), and the drill bit (202) is driven to continue to drill.
6. The method of claim 3, further comprising:
in the backward stage, the clamp holder (203) is loosened, the screw rod device (204) is closed, the screw rod device (204) stops rotating and moves to the side far away from the target oil pipeline (1) along the slide way (205), and the drill rod (201) is driven to be drawn out of the target oil pipeline (1).
7. The method according to claim 5, wherein when the number of secondary drill rods (2012) is greater than 1, the method further comprises:
in the retreating stage, when the joint between the two secondary drill rods (2012) is positioned between the clamp (203) and the screw driver (204), the clamp (203) is loosened, the screw driver (204) is closed, the screw driver (204) is reversely rotated, and the first end of the next secondary drill rod (2012) is driven to be unscrewed from the second end of the previous secondary drill rod (2012);
and unloading the next drill rod (2012).
8. The method of claim 7, further comprising:
in the retreating stage, when the connection position between the first section of drill rod (2011) and the second section of drill rod (2012) is positioned between the clamp (203) and the screw rod device (204), the clamp (203) is loosened, the screw rod device (204) is closed, the screw rod device (204) is reversely rotated, and the first end of the second section of drill rod (2012) and the second end of the first section of drill rod (2011) are driven to be unscrewed;
and unloading the secondary section of drill pipe (2012).
9. A method according to claim 1, wherein after the spherical pig (5) is withdrawn from the target oil pipeline (1) exposing the first port of the first operating pit (601), before the connection between the drill pipe (201) and the spherical pig (5) is broken, the method further comprises;
without disconnecting the connection between the drill rod (201) and the spherical pig (5), releasing the clamp (203) and the rod rotator (204), and controlling the winch (3) to pull the spherical pig (5) through the target oil pipeline (1) through the cable (4) until the spherical pig (5) is removed from the second port of the target oil pipeline (1) exposed out of the second operation pit (602);
control rig (2) get into the stage of retreating, loosen holder (203), closed swing arm ware (204), make swing arm ware (204) are to keeping away from along slide (205) target oil pipeline (1) side removal, through drilling rod (201) drive spherical pig (5) to the first port of target oil pipeline (1) removes, until spherical pig (5) are followed target oil pipeline (1) exposes the first port of first operation hole (601) withdraws from.
CN202010256746.4A 2020-04-02 2020-04-02 Oil pipeline dredging method and system Active CN113492142B (en)

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GB0909656D0 (en) * 2009-06-04 2009-07-22 Bp Exploration Operating method and apparatus for removing a blockage from a flowline
CN204294586U (en) * 2014-11-26 2015-04-29 安东石油技术（集团）有限公司 Pipe dredging device
CN204448733U (en) * 2015-02-15 2015-07-08 中国人民解放军总后勤部油料研究所 A kind of pipe cleaning device of offshore oil delivery pipeline
CN105215020B (en) * 2015-10-28 2017-09-19 中铁科工集团轨道交通装备有限公司 A kind of pipe dredging device
CN105864564B (en) * 2016-06-15 2018-08-28 长春高祥特种管道有限公司 A kind of isometrical interspersed method for repairing Underground Glass Fibre
CN205949423U (en) * 2016-07-29 2017-02-15 腾飞 Novel mediation equipment of petroleum pipeline
CN206392532U (en) * 2016-12-29 2017-08-11 代悦 A kind of crude oil pipeline coagulates pipe de-plugging dredger
CN107795004A (en) * 2017-10-10 2018-03-13 孙小军 A kind of device thin clearly and its method of work for mud lamination

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