CN116336298A - Blocking removing device and method for blocking oil and gas pipeline wax or hydrate - Google Patents
Blocking removing device and method for blocking oil and gas pipeline wax or hydrate Download PDFInfo
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- CN116336298A CN116336298A CN202310263841.0A CN202310263841A CN116336298A CN 116336298 A CN116336298 A CN 116336298A CN 202310263841 A CN202310263841 A CN 202310263841A CN 116336298 A CN116336298 A CN 116336298A
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims description 21
- 238000002347 injection Methods 0.000 claims abstract description 54
- 239000007924 injection Substances 0.000 claims abstract description 54
- 239000003814 drug Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000001993 wax Substances 0.000 abstract description 22
- 239000013043 chemical agent Substances 0.000 abstract description 9
- 239000012188 paraffin wax Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 40
- 239000007789 gas Substances 0.000 description 35
- 239000000126 substance Substances 0.000 description 8
- 238000000053 physical method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
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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
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
-
- 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
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- 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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to an oil gas pipeline wax or hydrate blocking removing device which comprises a main body part, a flow guiding head part and an injection pipe, wherein the flow guiding head part is arranged above the main body part, the flow guiding head part is of a conical structure with an opening facing the main body part, the injection pipe is arranged on the main body part in a penetrating way, the top end of the injection pipe is connected with the flow guiding head part, the bottom end of the injection pipe is used for connecting a medicament pump, a buffer gap exists between the flow guiding head part and the main body part, and a plurality of injection holes are formed in a pipe body of the injection pipe, which is positioned at the buffer gap. The invention can push the blocking remover to automatically move to a blocking position along the pipeline by the reverse thrust of the liquid jet on the flow guide head, thereby being convenient for bringing chemical agents to the blocking point position and effectively removing the blocking of paraffin or hydrate in the oil and gas pipe.
Description
Technical Field
The invention relates to the technical field of petrochemical industry, in particular to a plugging removing device and method for plugging an oil and gas pipeline by wax or hydrate.
Background
Most crude oil in China has high wax content, particularly for offshore oil and gas fields, in the actual operation of an oil pipeline, as the temperature of the seabed environment is low and the wax dissolving capacity of the crude oil is reduced along with the reduction of temperature and pressure, the paraffin begins to crystallize and separate out and adhere to the inner wall of the oil pipeline, the continuous separation and deposition of the paraffin can reduce the passing diameter of the pipeline, and finally, the blockage is formed. The problem of wax deposition on oil pipelines has always plagued normal production in oil fields. For plugging of pipeline paraffin, the current common plugging removing method mainly comprises a physical method and a chemical method. The physical method is to break the blockage by using physical action, and mainly comprises a high-pressure water jet technology, a mechanical method, an acoustic wave method, an electric field method, a magnetic field wax control method and the like; the chemical method mostly adopts to inject the special chemical reagent for removing the blockage into the pipeline to wash the pipeline so as to achieve the purpose of dissolving and removing the blockage. However, for paraffin clogging in submarine pipelines, the existing physical method is difficult to implement and has extremely high cost, and the chemical method does not have a better way to inject the blocking removal agent into the clogging position so as to achieve blocking removal.
In addition, natural gas hydrate is a cage-shaped compound formed by the action of natural gas and water under the condition of low temperature and high pressure, and with the development of deep water oil and gas fields, the environment of deep water and high pressure and low temperature is that an oil and gas gathering and conveying system is extremely easy to generate hydrate, and is often accompanied with the risk of blockage. For the blocking of the hydrate in the pipeline, the blocking is usually removed by adopting the local temperature rise of the pipeline or directly injecting the hydrate inhibitor, and the blocking can also be removed by adopting a double-side depressurization method. However, since offshore operations and production flows are different from those on land, the hydrate plugging in submarine pipelines cannot be effectively removed by simply moving the hydrate plugging removal method of an offshore oil and gas field. At present, hydrate blocking removal is usually carried out by adopting double-side depressurization, but due to pipeline fluctuation and other reasons, effective double-side depressurization is sometimes difficult to realize at a hydrate blocking position; on the other hand, due to the blockage of the pipeline, the chemical agent cannot be conveyed to the blocking position of the hydrate along with the flowing medium, and the blocking removal of the hydrate is difficult to realize.
Disclosure of Invention
The invention aims to provide a plugging removing device and method for wax or hydrate plugging of an oil and gas pipeline, which are used for solving the problem that in the prior art, the plugging removing of wax or hydrate in the oil and gas pipeline is difficult.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides an oil gas pipeline wax or hydrate blocking removing device which comprises a main body part, a flow guiding head part and an injection pipe, wherein the flow guiding head part is arranged above the main body part, the flow guiding head part is of a conical structure with an opening facing the main body part, the injection pipe is arranged on the main body part in a penetrating way, the top end of the injection pipe is connected with the flow guiding head part, the bottom end of the injection pipe is used for being connected with a medicament pump, a buffer gap exists between the flow guiding head part and the main body part, and a plurality of injection holes are formed in a pipe body of the injection pipe, which is positioned at the buffer gap.
Further, the water conservancy diversion head includes first curb plate and second curb plate, first curb plate with second curb plate integrated into one piece is the contained angle setting, first curb plate with the top that the second curb plate links to each other constitutes the pointed end of water conservancy diversion head, first curb plate with the bottom that the second curb plate kept away from constitutes the open end of water conservancy diversion head, the injection pipe is followed the central axis of water conservancy diversion head is arranged.
Further, the included angle range of the first side plate and the second side plate is smaller than or equal to 90 degrees.
Further, the main body part is in a columnar structure, and the diameter of the opening end of the flow guide head part is consistent with the diameter of the main body part.
Further, the bottom of the main body part is in a cambered surface round bottom structure.
Further, a first fixed baffle is horizontally arranged on the inner side of the flow guiding head, one end of the first fixed baffle is fixedly connected to the inner side plate surface of the first side plate, the other end of the first fixed baffle is fixedly connected to the inner side plate surface of the second side plate, a through hole for the spray pipe to pass through is formed in the middle of the first fixed baffle, and a limiting plate is fixedly connected to the end part of the spray pipe above the first fixed baffle.
Further, a second fixed baffle is horizontally arranged above the first fixed baffle on the inner side of the flow guiding head, one end of the second fixed baffle is fixedly connected to the inner side plate surface of the first side plate, the other end of the second fixed baffle is fixedly connected to the inner side plate surface of the second side plate, and a gap for the flow guiding head to float up and down is reserved between the second fixed baffle and the first fixed baffle.
Based on the plugging removing device for the oil and gas pipeline wax or the hydrate plug, the invention also provides a plugging removing method for the oil and gas pipeline wax or the hydrate plug, which comprises the following steps:
according to the pipe diameter and the local curvature radius of the blocked oil and gas pipeline, a blocking remover with proper diameter and length is selected, and according to the position of a blocking point in the oil and gas pipeline and the flow of the required injection medicament, a medicament conveying hose with proper length and pipe diameter and a matched medicament pump are selected;
placing the blocking remover into a blocked oil gas pipeline, starting a medicament pump to enable the blocking remover to run along the pipeline under the action of medicament reverse thrust, and adjusting the flow of the medicament pump according to the running resistance condition of the blocking remover so as to adjust the running speed of the blocking remover;
after the plugging removing device reaches the plugging point position, continuously injecting the medicament and standing for a set time, judging whether to continuously push the plugging removing device to move according to the plugging material decomposition condition of the plugging point position until the plugging material in the plugged oil and gas pipeline is thoroughly removed.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the device comprises a main body part, a flow guide head part and an injection pipe, wherein the flow guide head part is in a conical structure with an opening facing the main body part, the injection pipe is connected with the flow guide head part and a chemical pump, and the chemical is injected into the injection pipe by starting the chemical pump, so that the chemical is sprayed out from an injection hole on a pipe body of a buffer gap between the flow guide head part and the main body part of the injection pipe, the blocking remover is pushed to automatically move to a blocking position along a pipeline by the reverse thrust of the liquid injection action on the flow guide head part, the chemical is brought to the blocking point position conveniently, the blocking of paraffin or hydrate in an oil pipe can be effectively removed, the operation is simple, and compared with the conventional blocking removing method, the blocking removing cost and the blocking removing time can be greatly reduced, and the device has good application prospect.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like parts are designated with like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a plugging removing device for plugging an oil and gas pipeline by wax or hydrate according to an embodiment of the invention;
fig. 2 is a schematic diagram of a plugging removing state of a plugging removing device for plugging an oil and gas pipeline by wax or hydrate according to an embodiment of the invention.
The various references in the drawings are as follows:
1. a main body portion; 2. a deflector head; 21. a first side plate; 22. a second side plate; 23. a first fixed baffle; 24. a second fixed baffle; 3. a jet pipe; 4. a medicament pump; 5. an injection hole; 6. an oil and gas pipeline; 7. a medicament delivery hose.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Because the traditional oil gas pipeline is blocked by wax or hydrate, the blockage is difficult to remove. The invention provides a plugging removing device for wax or hydrate plugging of an oil and gas pipeline, which comprises a main body part, a flow guiding head part and an injection pipe, wherein the flow guiding head part is arranged above the main body part, the flow guiding head part is of a conical structure with an opening facing the main body part, the injection pipe is arranged on the main body part in a penetrating way, the top end of the injection pipe is connected with the flow guiding head part, the bottom end of the injection pipe is used for connecting a medicament pump, a buffer gap exists between the flow guiding head part and the main body part, and a plurality of injection holes are formed in a pipe body of the injection pipe, which is positioned at the buffer gap. The invention can push the blocking remover to automatically move to a blocking position along the pipeline by the reverse thrust of the liquid jet on the flow guide head, thereby being convenient for bringing chemical agents to the blocking point position and effectively removing the blocking of paraffin or hydrate in the oil and gas pipe.
The following is a detailed description of the embodiments of the present invention by way of examples.
Examples
As shown in fig. 1 and 2, the invention provides a plugging removing device for plugging oil and gas pipeline wax or hydrate, which comprises a main body part 1, a flow guiding head part 2 and a jet pipe 3. The flow guiding head 2 is arranged above the main body 1, and the flow guiding head 2 has a conical structure with an opening facing the main body 1. The injection tube 3 is arranged on the main body part 1 in a penetrating way, the top end of the injection tube 3 is connected with the flow guiding head part 2, and the bottom end of the injection tube 3 is used for being connected with the medicament pump 4. A buffer gap exists between the flow guiding head part 2 and the main body part 1, and a plurality of injection holes 5 are arranged on the pipe body of the injection pipe 3 positioned at the buffer gap. Wherein the pore size and distribution of the injection holes 5 are uniformly distributed along the circumferential direction of the injection pipe 3. Through the setting of this structure, only need start the chemical agent pump 4 to the injection pipe 3 in, make chemical agent be located the blowout of jet orifice 5 on the body in the buffering space between water conservancy diversion head 2 and the main part 1 from injection pipe 3 to through the reverse thrust of liquid injection effect on water conservancy diversion head 2 promote the deblocking device and move to the jam position by oneself along oil gas pipeline 6, and then be convenient for take the chemical agent to the jam point position, can effectively remove wax or hydrate jam in the oil gas pipeline 6.
Further, the flow guiding head 2 comprises a first side plate 21 and a second side plate 22, and the first side plate 21 and the second side plate 22 are integrally formed and are arranged at an included angle. The top end of the first side plate 21 and the second side plate 22 connected to each other constitutes the tip end of the deflector head 2, the bottom end of the first side plate 21 and the second side plate 22 distant from each other constitutes the open end of the deflector head 2, and the injection tube 3 is arranged along the central axis of the deflector head 2. Preferably, the first side plate 21 and the second side plate 22 have an included angle range of less than or equal to 90 °. Through the arrangement of the structure, when the blocking remover runs along the oil and gas pipeline 6 by itself, the conical structure of the flow guide head 2 is utilized, so that the running resistance of the blocking remover can be reduced, and the reverse thrust of liquid injection is convenient to act on the flow guide head 2 to push the blocking remover to run along the oil and gas pipeline 6 by itself. Meanwhile, the included angle between the first side plate 21 and the second side plate 22 can be properly reduced according to the running resistance of the blocking remover so as to increase the reverse thrust generated by the injection of the medicament.
Preferably, the main body part 1 is in a columnar structure, and the diameter of the open end of the flow guiding head part 2 is consistent with the diameter of the main body part 1, so as to avoid blocking the device when the blocking removing device automatically runs along a pipeline.
Further, the bottom of the main body part 1 is of a cambered round bottom structure, so that the plugging removing device is not easy to be blocked when the plugging removing device exits from the oil and gas pipeline 6 while the stability is kept.
Further, the inner side of the deflector head 2 is horizontally provided with a first fixed baffle 23. One end of the first fixed baffle 23 is fixedly connected to the inner side plate surface of the first side plate 21, and the other end of the first fixed baffle 23 is fixedly connected to the inner side plate surface of the second side plate 22. A through hole for the jet pipe 3 to pass through is arranged in the middle of the first fixed baffle plate 23, and a limiting plate is fixedly connected with the end part of the jet pipe 3 above the first fixed baffle plate 23. Through the arrangement of the structure, the flow guide head 2 is movably connected with the injection pipe 3, so that the flow guide head 2 is allowed to rotate due to the reverse thrust generated by the injection of the medicament, and the medicament conveying hose 7 is prevented from being twisted in the advancing process of the blocking remover.
Further, a second fixed baffle 24 is horizontally disposed above the first fixed baffle 23 on the inner side of the deflector head 2. One end of the second fixed baffle 24 is fixedly connected to the inner side plate surface of the first side plate 21, and the other end of the second fixed baffle 24 is fixedly connected to the inner side plate surface of the second side plate 22. A gap for floating the deflector head 2 up and down is provided between the second fixed baffle 24 and the first fixed baffle 23. Through the setting of this structure, the setting that utilizes second fixed stop 24 makes the deblocking device advance in-process meet resistance and can cushion by a small margin, ensures that the deblocking device can steadily advance.
Based on the plugging removing device for the oil and gas pipeline wax or the hydrate plug, the invention also provides a plugging removing method for the oil and gas pipeline wax or the hydrate plug, which comprises the following steps:
according to the pipe diameter and the local curvature radius of the blocked oil and gas pipeline 6, a blocking remover with proper diameter and length is selected, and according to the position of a blocking point in the oil and gas pipeline 6 and the flow of the required injection medicament, a medicament conveying hose 7 with proper length and pipe diameter and a matched medicament pump 4 are selected;
placing the blocking remover into a blocked oil gas pipeline 6, starting a medicament pump 4 to enable the blocking remover to run along the pipeline under the action of medicament reverse thrust, and adjusting the flow of the medicament pump 4 according to the running resistance condition of the blocking remover so as to adjust the migration speed of the blocking remover;
after the plugging removing device reaches the plugging point position, continuously injecting the medicament and standing for a set time, judging whether to continuously push the plugging removing device to move according to the plugging material decomposition condition of the plugging point position until the plugging material in the oil and gas pipeline 6 is thoroughly removed.
According to the plugging removing device for the oil and gas pipeline wax or hydrate plugging, the flow guide head part 2 is in the conical structure with the opening facing the main body part 1, and the chemical agent is injected into the injection pipe 3 by starting the agent pump 4, so that the chemical agent is sprayed out from the injection hole 5 on the injection pipe 3, the plugging removing device is pushed to automatically move to a plugging position along the pipeline by the reverse thrust of the liquid injection acting on the flow guide head part 2, the chemical agent is brought to the plugging point position conveniently, the plugging of the oil and gas pipeline wax or the hydrate can be effectively removed, the operation is simple, the plugging removing cost and the plugging removing time can be greatly reduced compared with the conventional plugging removing method, and the plugging removing device has good application prospect.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An oil gas pipeline wax or hydrate blocking removing device which is characterized in that: the blocking remover comprises a main body part, a flow guide head part and an injection pipe, wherein the flow guide head part is arranged above the main body part, the flow guide head part is of a conical structure with an opening facing the main body part, the injection pipe penetrates through the main body part, the top end of the injection pipe is connected with the flow guide head part, the bottom end of the injection pipe is used for connecting a medicament pump, a buffer gap exists between the flow guide head part and the main body part, and a plurality of injection holes are formed in a pipe body of the injection pipe, which is positioned at the buffer gap.
2. The plugging removal device for plugging of oil and gas pipelines by wax or hydrate according to claim 1, wherein: the water conservancy diversion head includes first curb plate and second curb plate, first curb plate with second curb plate integrated into one piece is the contained angle setting, first curb plate with the top that the second curb plate links to each other constitutes the pointed end of water conservancy diversion head, first curb plate with the bottom that the second curb plate kept away from constitutes the open end of water conservancy diversion head, the jet pipe is followed the central axis of water conservancy diversion head is arranged.
3. The plugging removal device for plugging of oil and gas pipelines by wax or hydrate according to claim 2, wherein: the included angle range of the first side plate and the second side plate is smaller than or equal to 90 degrees.
4. A plugging removal device for plugging an oil and gas pipeline with wax or hydrate according to claim 3, wherein: the main body part is in a columnar structure, and the diameter of the opening end of the flow guide head part is consistent with that of the main body part.
5. The plugging removal device for plugging of oil and gas pipelines by wax or hydrate according to claim 4, wherein: the bottom of the main body part is of a cambered surface round bottom structure.
6. The plugging removal device for plugging of oil and gas pipelines by wax or hydrate according to claim 2, wherein: the inner side of the flow guiding head is horizontally provided with a first fixed baffle, one end of the first fixed baffle is fixedly connected to the inner side plate surface of the first side plate, the other end of the first fixed baffle is fixedly connected to the inner side plate surface of the second side plate, a through hole for the jet pipe to pass through is formed in the middle of the first fixed baffle, and the jet pipe is located at the end part above the first fixed baffle and fixedly connected with a limiting plate.
7. The plugging removal device for plugging of oil and gas pipelines by wax or hydrate according to claim 6, wherein: the inner side of the flow guiding head is horizontally provided with a second fixed baffle above the first fixed baffle, one end of the second fixed baffle is fixedly connected to the inner side plate surface of the first side plate, the other end of the second fixed baffle is fixedly connected to the inner side plate surface of the second side plate, and a gap for the flow guiding head to float up and down is reserved between the second fixed baffle and the first fixed baffle.
8. A method for plugging and unplugging oil and gas pipeline wax or hydrate, which adopts the plugging and unplugging device for plugging and unplugging oil and gas pipeline wax or hydrate according to any one of claims 1 to 7, and is characterized in that the method comprises the following steps:
according to the pipe diameter and the local curvature radius of the blocked oil and gas pipeline, a blocking remover with proper diameter and length is selected, and according to the position of a blocking point in the oil and gas pipeline and the flow of the required injection medicament, a medicament conveying hose with proper length and pipe diameter and a matched medicament pump are selected;
placing the blocking remover into a blocked oil gas pipeline, starting a medicament pump to enable the blocking remover to run along the pipeline under the action of medicament reverse thrust, and adjusting the flow of the medicament pump according to the running resistance condition of the blocking remover so as to adjust the running speed of the blocking remover;
after the plugging removing device reaches the plugging point position, continuously injecting the medicament and standing for a set time, judging whether to continuously push the plugging removing device to move according to the plugging material decomposition condition of the plugging point position until the plugging material in the plugged oil and gas pipeline is thoroughly removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310263841.0A CN116336298A (en) | 2023-03-17 | 2023-03-17 | Blocking removing device and method for blocking oil and gas pipeline wax or hydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310263841.0A CN116336298A (en) | 2023-03-17 | 2023-03-17 | Blocking removing device and method for blocking oil and gas pipeline wax or hydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116336298A true CN116336298A (en) | 2023-06-27 |
Family
ID=86888876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310263841.0A Pending CN116336298A (en) | 2023-03-17 | 2023-03-17 | Blocking removing device and method for blocking oil and gas pipeline wax or hydrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116336298A (en) |
-
2023
- 2023-03-17 CN CN202310263841.0A patent/CN116336298A/en active Pending
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