CN113319078A - Automatic spherical pig launcher and automatic pig method - Google Patents
Automatic spherical pig launcher and automatic pig method Download PDFInfo
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- CN113319078A CN113319078A CN202010596466.8A CN202010596466A CN113319078A CN 113319078 A CN113319078 A CN 113319078A CN 202010596466 A CN202010596466 A CN 202010596466A CN 113319078 A CN113319078 A CN 113319078A
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- control valve
- pipeline
- pigging
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- automatic
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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
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0552—Spherically shaped pigs
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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
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0551—Control mechanisms therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/46—Launching or retrieval of pigs or moles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pipeline Systems (AREA)
- Cleaning In General (AREA)
Abstract
An automatic spherical pig launcher and an automatic pig method comprise: the parallelly connected pipeline of two-way, wherein, two-way pipeline still is connected with three routes, four routes, five pipeline, is equipped with on this three routes pipeline: the pre-chamber is connected with the third control valve; four conveying pipelines are provided with: the input end of the launching cabin is connected with the third control valve and forms a first loop; the launching cabin is connected with a fourth control valve; the five conveying pipelines are provided with: the sixth control valve and the sixth control valve are respectively connected with the launching cabin and the fourth control valve to form a second loop; the sixth control valve is also sequentially connected with the fifth control valve, the submarine pipeline and the crude oil. The invention not only effectively solves the problem of the requirement of the submarine pipeline on the annular ball-passing pipe network, but also greatly improves the working efficiency of the ball-passing pipe network; moreover, the operation risk and the construction cost are reduced; and further realizes the automation and intellectualization of the ball passing and cleaning.
Description
Technical Field
The invention belongs to the field of marine petroleum engineering, and particularly relates to an automatic pigging ball launcher and an automatic pigging method.
Background
At present, in the process of petroleum engineering development, a pigging emitter is a special tool for cleaning pipelines for conveying oil, gas and the like; the pigging launcher is divided into single pigging launching and multi-pigging launching, and can also be divided into land launching and underwater launching. The pigging transmitter includes: a spherical pig and a collecting and launching tube of the spherical pig. The collecting and transmitting barrels of the spherical pig are generally arranged at two ends of a main pipeline, and the spherical pig is transmitted and received to carry out ball passing and sweeping before production and wax removal, oil removal, scale removal and other work after production on the pipeline.
When the device is applied to ocean engineering, the ball receiving and sending barrels are respectively arranged on two associated platforms and used for the ball passing and pipe cleaning operation of submarine pipelines between the platforms. When in operation, personnel are required to be arranged on the two offshore platforms for coordination operation. But the operation mode is difficult to be applied to the offshore unmanned platform.
In the prior art, in order to solve the problem of pigging work of a manned offshore platform, two submarine pipelines between offshore platforms need to be unified in specification to form an annular pigging pipe network, and pigging work is finished through a ball receiving and sending device arranged at the end of the manned offshore platform.
By adopting the ball passing scheme of the offshore unmanned platform submarine pipeline, the pipeline cleaning work can be realized, but the specifications of the two submarine pipelines need to be unified. Taking a certain offshore unmanned platform in Bohai sea as an example for explanation: about 10 kilometers away from the supporting platform, 6 'and 8' submarine pipelines are arranged. In order to ensure the function of an annular through ball pipe network, simultaneously, consider the pipeline conveying capacity, and perform the equal strength analysis of the stability of a sea pipe, the specifications of two submarine pipelines need to be unified to 8', and the wall thickness needs to be 12.7 mm. Thus, the proposal increases the steel consumption by about 223.7 tons, and the cost of materials, construction and the like caused by the steel consumption is more than 190 ten thousand yuan. The above example analysis shows that it not only causes investment waste, but also increases operation risk and construction cost.
Disclosure of Invention
The invention aims to provide an automatic spherical pig launcher and an automatic spherical pig method, and aims to solve the technical problem of meeting the requirement of an annular ball-passing pipe network of a submarine pipeline.
In order to achieve the purpose, the automatic spherical pig launcher has the following specific technical scheme:
an automatic spherical pig launcher comprising: two parallel conveying pipelines, wherein one conveying pipeline is as follows: the crude oil conveying pipeline and an eighth control valve arranged on the crude oil conveying pipeline; two conveying pipelines connected in parallel with one conveying pipeline; the two conveying pipelines are as follows: the water injection system comprises a water injection conveying pipeline, a check valve and a first control valve, wherein the check valve and the first control valve are sequentially arranged on the water injection conveying pipeline;
the output ends of the two conveying pipelines are also connected with three, four and five conveying pipelines, wherein the three conveying pipelines are provided with: the second control valve and the pre-assembly cabin are arranged on the three-way conveying pipeline through the second control valve, and the pre-assembly cabin is connected with the third control valve;
four conveying pipelines are provided with: the seventh control valve and a launching cabin which is arranged on the four conveying pipelines through the seventh control valve, wherein the input end of the launching cabin is connected with the third control valve and forms a first loop; the output end of the launching cabin is connected with a fourth control valve;
the five conveying pipelines are provided with: the output ends of the sixth control valve and the sixth control valve are respectively connected with the output end of the launching cabin and the fourth control valve to form a second loop; the sixth control valve is also sequentially connected with the fifth control valve, the submarine pipeline and the crude oil.
Further, the water injection conveying pipeline is used as a standby pipeline of the crude oil conveying pipeline and used for switching power sources; and can be used for preventing the water supply pipeline from being replaced in an emergency when the crude oil sea pipe is shut down due to faults.
Furthermore, a plurality of flow-limiting pore plates used for controlling the opening speed of the valve are arranged on the first control valve and the eighth control valve, so that the operation of the whole system is more stable.
Further, the pre-chamber comprises: the fast-opening blind plate is arranged at the left end, the pre-assembly chamber cylinder body is arranged in the middle of the fast-opening blind plate, and the flange is arranged at the right end of the pre-assembly chamber cylinder body, wherein a semicircular sealing head is arranged in front of the fast-opening blind plate.
Further, the launch bin is provided with: the barrel of launch cabin, install the flange at the barrel both sides of launch cabin.
Further, the third control valve, the fourth control valve and the fifth control valve are full-bore valves.
The invention also provides an automatic pigging method of the automatic pigging ball emitter, which is provided with the automatic pigging ball emitter and specifically comprises the following steps:
the first step is as follows: pre-assembling operation and maintenance working conditions:
the pipe cleaning ball is placed in the pre-assembly cabin, and when the submarine pipeline is cleaned, the flow switching from the production working condition to the pipe cleaning working condition can be carried out only by remotely controlling all the control valves by using a remote controller;
the second step is that: production conditions are as follows:
setting the first control valve, the second control valve, the third control valve, the fourth control valve and the seventh control valve to be in a closed state, and setting the fifth control valve, the sixth control valve and the eighth control valve to be in an open state;
the third step: the pipe cleaning working condition is as follows:
the switching process from the production working condition to the pigging working condition is as follows:
a. opening the second control valve and the third control valve, introducing power liquid into the pre-loading cabin, and driving the spherical pig to enter the launching cabin;
b. when the spherical pig enters the launching cabin, closing the second control valve and the third control valve;
c. the fourth control valve and the seventh control valve are opened, the sixth control valve is slowly closed, and the spherical pig enters the submarine pipeline under the pushing of the power liquid, so that the spherical pig can be used for carrying out the spherical pig passing operation on the submarine pipeline;
the fourth step: emergency replacement working condition:
when the pipeline cleaning operation is carried out, the eighth control valve is only required to be closed, the first control valve on the water injection conveying pipeline is opened, and the water injection conveying pipeline can be used as a standby pipeline of the crude oil conveying pipeline and used for switching power sources; and can be used for preventing the water supply pipeline from being replaced in an emergency when the crude oil sea pipe is shut down due to faults.
Furthermore, the pre-loading cabin can carry out collocation combination of various specifications on the pre-loading cabin and the launching cabin according to the pigging requirements of different pigging sizes, pigging types and pigging numbers required by the pigging pipeline so as to deal with complexity and diversity of pigging operation.
Furthermore, the launching cabin can carry out collocation combination of various specifications on the launching cabin and the pre-loading cabin according to different pigging requirements of pigging ball size, pigging ball type and pigging ball quantity required by a pigging pipeline so as to deal with complexity and diversity of pigging operation.
The automatic spherical pig launcher and the automatic pig method have the following advantages:
the invention not only effectively solves the problem of the requirement of the submarine pipeline on the annular ball-passing pipe network, but also greatly improves the working efficiency of the ball-passing pipe network; moreover, the operation risk and the construction cost are reduced; and further realizes the automation and intellectualization of the ball passing and cleaning.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of the orifice plate assembly of the present invention;
FIG. 3 is a schematic view of a pre-chamber of the present invention;
fig. 4 is a schematic view of a launch capsule of the present invention.
The notation in the figure is:
1. the device comprises a crude oil conveying pipeline, a water injection conveying pipeline, a check valve 3, a first control valve 41, a second control valve 42, a second control valve 43, a third control valve 44, a fourth control valve 45, a fifth control valve 46, a sixth control valve 47, a seventh control valve 48, an eighth control valve 5, a pre-loading chamber 6, a launching chamber 7, a submarine pipeline 8, a flow limiting orifice plate 9, a quick-opening blind plate 10, a pre-loading chamber cylinder 11, a flange 12 and a launching chamber cylinder 12.
Detailed Description
For a better understanding of the objects, structure and function of the present invention, an automatic spherical pig launcher and an automatic pig method according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4, the automatic spherical pig launcher of the present invention comprises: two parallel conveying pipelines, wherein one conveying pipeline is as follows: a crude oil transfer line 1, an eighth control valve 48 installed on the crude oil transfer line 1; two conveying pipelines connected in parallel with one conveying pipeline; the two conveying pipelines are as follows: a water injection delivery line 2, a check valve 3 and a first control valve 41 sequentially installed on the water injection delivery line 2;
the output ends of the two conveying pipelines are also connected with three, four and five conveying pipelines, wherein the three conveying pipelines are provided with: a second control valve 42, a pre-loading chamber 5 mounted on the three-way delivery line through the second control valve 42, the pre-loading chamber 5 being connected to a third control valve 43;
four conveying pipelines are provided with: a seventh control valve 47 and a launching cabin 6 installed on the four conveying pipelines through the seventh control valve 47, wherein the input end of the launching cabin 6 is connected with the third control valve 43 and forms a first loop; the output end of the launching capsule 6 is connected with a fourth control valve 44;
the five conveying pipelines are provided with: the output ends of the sixth control valve 46 and the sixth control valve 46 are respectively connected with the output end of the launching cabin 6 and the fourth control valve 44, and a second loop is formed; the sixth control valve 46 is also connected in turn to the fifth control valve 45, the subsea pipeline 7 and the crude oil.
The water injection conveying pipeline 2 can be used as a standby pipeline of the crude oil conveying pipeline 1 and used for switching power sources. And can be used for preventing the water supply pipeline from being replaced in an emergency when the crude oil marine pipe is shut down due to faults.
The first control valve 41 and the eighth control valve 48 are provided with a flow-limiting orifice plate 8 for the valve opening speed of a plurality of control valves, so as to ensure that the whole system operates more stably.
The pre-loading chamber 5 is connected with the launching chamber 6 and the third control valve 43 through flanges 11.
In the pre-loading cabin 5 and the launching cabin 6, the matching combination of the pre-loading cabin 5 and the launching cabin 6 with various specifications can be carried out according to different pigging requirements such as the size of pigging balls, the type of the pigging balls, the number of the pigging balls and the like required by a pigging pipeline, and the matching combination is used for dealing with the complexity and the diversity of the pigging operation.
As shown in fig. 3, the pre-loading bin 5 includes: the fast-opening blind plate structure comprises a fast-opening blind plate 9 arranged at the left end, a pre-assembly barrel 10 arranged in the middle of the fast-opening blind plate 9 and a flange 11 arranged at the right end of the pre-assembly barrel 10, wherein a semicircular sealing head is arranged in front of the fast-opening blind plate 9 in a welding mode.
As shown in fig. 4, the launch bin 6 is provided with: a barrel 12 of the launching capsule and flanges 11 arranged at two sides of the barrel 12 of the launching capsule.
The third control valve 43, the fourth control valve 44, and the fifth control valve 45 are full-bore valves.
The automatic spherical pig launcher of the invention specifically adopts the following steps:
the first step is as follows: pre-assembling operation and maintenance working conditions:
placing the spherical pig in the pre-loading cabin 5, when the submarine pipeline 7 is subjected to pigging operation, switching the flow from the production working condition to the pigging working condition only by remotely controlling all control valves by using a remote controller, and realizing automation of the pigging operation;
the second step is that: production conditions are as follows:
the first control valve 41, the second control valve 42, the third control valve 43, the fourth control valve 44, and the seventh control valve 47 are set to the closed state, and the fifth control valve 45, the sixth control valve 46, and the eighth control valve 48 are set to the open state;
the third step: the pipe cleaning working condition is as follows:
the switching process from the production working condition to the pigging working condition is as follows:
a. opening the second control valve 42 and the third control valve 43, and introducing power fluid into the pre-loading cabin 5 to drive the spherical pig into the launching cabin 6;
b. when the spherical pig enters the launching cabin 6, the second control valve 42 and the third control valve 43 are closed;
c. opening the fourth control valve 44 and the seventh control valve 47, slowly closing the sixth control valve 46, and pushing the spherical pig into the submarine pipeline 7 by the power liquid to perform spherical pig passing operation;
the fourth step: emergency replacement working condition:
when cleaning the pipes, the water injection conveying pipeline 2 can be used as a standby pipeline of the crude oil conveying pipeline 1 for switching power sources by closing the eighth control valve 48 and opening the first control valve 41 on the water injection conveying pipeline 2; but also can be used for preventing the water supply pipeline from being replaced in an emergency when the crude oil marine pipe is shut down due to faults;
during specific implementation, the pre-loading cabin 5 and the launching cabin 6 can be matched and combined with the pre-loading cabin 5 and the launching cabin 6 with various specifications according to different pigging requirements such as the size of pigging balls, the type of the pigging balls and the number of the pigging balls required by a pigging pipeline, so that the complexity and the diversity of pigging operation can be met.
The crude oil delivery pipeline, the water injection delivery pipeline, the check valve and the control valve are prior art, and the unexplained technology is prior art, so the details are not repeated.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. An automatic spherical pig launcher, comprising: two parallel conveying pipelines, wherein one conveying pipeline is as follows: the crude oil conveying pipeline and an eighth control valve arranged on the crude oil conveying pipeline; two conveying pipelines connected in parallel with one conveying pipeline; the two conveying pipelines are as follows: the water injection system comprises a water injection conveying pipeline, a check valve and a first control valve, wherein the check valve and the first control valve are sequentially arranged on the water injection conveying pipeline;
the output ends of the two conveying pipelines are also connected with three, four and five conveying pipelines, wherein the three conveying pipelines are provided with: the second control valve and the pre-assembly cabin are arranged on the three-way conveying pipeline through the second control valve, and the pre-assembly cabin is connected with the third control valve;
four conveying pipelines are provided with: the seventh control valve and a launching cabin which is arranged on the four conveying pipelines through the seventh control valve, wherein the input end of the launching cabin is connected with the third control valve and forms a first loop; the output end of the launching cabin is connected with a fourth control valve;
the five conveying pipelines are provided with: the output ends of the sixth control valve and the sixth control valve are respectively connected with the output end of the launching cabin and the fourth control valve to form a second loop; the sixth control valve is also sequentially connected with the fifth control valve, the submarine pipeline and the crude oil.
2. The automatic spherical pig launcher according to claim 1, wherein the water injection transfer line serves as a backup line for a crude oil transfer line for power source switching; and can be used for preventing the water supply pipeline from being replaced in an emergency when the crude oil sea pipe is shut down due to faults.
3. The automatic spherical pig launcher according to claim 1, wherein a plurality of restriction orifice plates for controlling the opening speed of the valve are provided on the first control valve and the eighth control valve to ensure that the whole system operates more smoothly.
4. The automatic spherical pig launcher according to claim 1, wherein said pre-load compartment comprises: the fast-opening blind plate is arranged at the left end, the pre-assembly chamber cylinder body is arranged in the middle of the fast-opening blind plate, and the flange is arranged at the right end of the pre-assembly chamber cylinder body, wherein a semicircular sealing head is arranged in front of the fast-opening blind plate.
5. The automated spherical pig launcher according to claim 1, wherein said launch bin is provided with: the barrel of launch cabin, install the flange at the barrel both sides of launch cabin.
6. The automatic spherical pig launcher according to claim 1, wherein the third control valve, fourth control valve, and fifth control valve are full bore valves.
7. An automatic spherical pig launcher automatic pigging method, characterized in that, the automatic spherical pig launcher of claim 1-claim 6 is provided, the following steps are adopted:
the first step is as follows: pre-assembling operation and maintenance working conditions:
the pipe cleaning ball is placed in the pre-assembly cabin, and when the submarine pipeline is cleaned, the flow switching from the production working condition to the pipe cleaning working condition can be carried out only by remotely controlling all the control valves by using a remote controller;
the second step is that: production conditions are as follows:
setting the first control valve, the second control valve, the third control valve, the fourth control valve and the seventh control valve to be in a closed state, and setting the fifth control valve, the sixth control valve and the eighth control valve to be in an open state;
the third step: the pipe cleaning working condition is as follows:
the switching process from the production working condition to the pigging working condition is as follows:
a. opening the second control valve and the third control valve, introducing power liquid into the pre-loading cabin, and driving the spherical pig to enter the launching cabin;
b. when the spherical pig enters the launching cabin, closing the second control valve and the third control valve;
c. the fourth control valve and the seventh control valve are opened, the sixth control valve is slowly closed, and the spherical pig enters the submarine pipeline under the pushing of the power liquid, so that the spherical pig can be used for carrying out the spherical pig passing operation on the submarine pipeline;
the fourth step: emergency replacement working condition:
when the pipeline cleaning operation is carried out, the eighth control valve is only required to be closed, the first control valve on the water injection conveying pipeline is opened, and the water injection conveying pipeline can be used as a standby pipeline of the crude oil conveying pipeline and used for switching power sources; and can be used for preventing the water supply pipeline from being replaced in an emergency when the crude oil sea pipe is shut down due to faults.
8. The automatic pigging method of an automatic pigging ball launcher according to claim 7, characterized in that the pre-loading cabin can match and combine the pre-loading cabin and the launching cabin with various specifications according to pigging requirements of different pigging ball sizes, pigging ball types and pigging ball numbers required by a pigging pipeline so as to deal with complexity and diversity of pigging operations.
9. The automatic pigging method of an automatic pigging ball launcher according to claim 7, characterized in that the launching cabin can match and combine the launching cabin and the pre-loading bin with various specifications according to the pigging requirements of different pigging ball sizes, types and numbers of pigging balls required by a pigging pipeline, so as to deal with the complexity and diversity of pigging operation.
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| CN202010596466.8A CN113319078B (en) | 2020-06-28 | 2020-06-28 | Automatic pigging ball emitter and automatic pigging method |
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| CN202010596466.8A CN113319078B (en) | 2020-06-28 | 2020-06-28 | Automatic pigging ball emitter and automatic pigging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114392992A (en) * | 2021-12-21 | 2022-04-26 | 烟台杰瑞石油装备技术有限公司 | Oil and gas pipeline cleaning operation equipment and operation method |
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