CN114233242A - Free water injection module for deepwater sea pipe - Google Patents
Free water injection module for deepwater sea pipe Download PDFInfo
- Publication number
- CN114233242A CN114233242A CN202111575984.2A CN202111575984A CN114233242A CN 114233242 A CN114233242 A CN 114233242A CN 202111575984 A CN202111575984 A CN 202111575984A CN 114233242 A CN114233242 A CN 114233242A
- Authority
- CN
- China
- Prior art keywords
- medicament
- flow
- pipeline
- pipe
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 239000003814 drug Substances 0.000 claims abstract description 82
- 239000013535 sea water Substances 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention relates to a free water injection module of a deepwater sea pipe, which comprises a pipeline, a flow detection device, a medicament suction device, a flow control unit and a connector, wherein the flow detection device, the medicament suction device, the flow control unit and the connector are arranged on the pipeline along the flowing direction of seawater; the flow detection device detects the flow of the seawater entering the pipeline; the medicament is sucked in the medicament suction device to take away the medicament when water flows, and the medicament is sent into the pipeline to treat the marine vessel by using the medicament; the flow control unit controls the flow of the seawater flowing through the pipeline; the connector is used for being connected with a sea pipe so as to inject the seawater with the medicament into the sea pipe. The module realizes free water injection operation of the marine pipe at the deep sea bottom, the installed medicament suction device is convenient for injection of medicaments, the medicament injection requirement is met, the flow control unit throttles and reduces pressure of injected fluid so that the injected medium cannot damage the marine pipe and meet the water injection speed requirement, free water injection operation can be implemented on the marine pipe with the water depth of 1500 and 3000 meters, and technical guarantee is provided for development of deep water oil and gas fields.
Description
Technical Field
The invention relates to the field of marine petroleum engineering, in particular to a free water injection module of a deepwater sea pipe.
Background
The operation of cleaning the sea pipe is an important work which must be carried out before the sea pipe is put into production and is also a key content in the process of developing the offshore oil and gas field. With the development of oil and gas fields in China, the water depth of the sea pipe cleaning operation gradually changes from 100-.
With the continuous increase of the operating water depth, the traditional scheme and equipment for cleaning the sea pipe in the shallow water area cannot meet the operating requirements. Similar to other underwater construction projects, the technical difficulty, equipment requirements, operation risks and construction cost of pipe cleaning are increased along with the increase of water depth.
Disclosure of Invention
The invention aims to solve the technical problem of providing a free water injection module for a deepwater sea pipe, aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the free water injection module of the deepwater sea pipe is constructed and comprises a pipeline, a flow detection device, a medicament suction device, a flow control unit and a connector, wherein the flow detection device, the medicament suction device, the flow control unit and the connector are arranged on the pipeline along the flowing direction of seawater;
the flow detection device detects the flow of the seawater entering the pipeline;
the medicament is sucked into the medicament suction device, so that the medicament is taken away when water flows through the medicament suction device, and the medicament is sent into the pipeline so as to treat the marine vessel by using the medicament;
the flow control unit controls the flow of the seawater flowing through the pipeline;
the connector is used for being connected with a sea pipe so as to inject seawater with medicaments into the sea pipe.
Preferably, the water injection module further comprises a filtration device for filtering the seawater entering the pipeline.
Preferably, the flow control unit comprises a first flow meter.
Preferably, the water injection module further comprises a first pressure sensing device, a second pressure sensing device and a third pressure sensing device;
the first pressure sensing means is disposed upstream of the flow sensing means to sense the pressure of the water entering the pipeline;
the second pressure sensing means is provided between the medicine inhalation device and the flow control unit to detect the pressure of water flowing out of the medicine inhalation device;
the third pressure sensing means is provided downstream of the flow control unit to detect the pressure of the water flowing to the connector.
Preferably, the water injection module further comprises a control switch arranged between the flow control unit and the connector, and the third pressure sensing device is arranged between the control switch and the connector.
Preferably, the control switch is a control valve.
Preferably, the water injection module further comprises a medicament injection means for delivering a medicament to the medicament inhalation means.
Preferably, a second flow meter for monitoring the amount of the medicine to be fed is provided between the medicine injection device and the medicine inhalation device.
Preferably, the medicament injection device is a medicament bag.
Preferably, the water filling module further comprises a data hub for transmitting data of the first pressure sensing device, the flow control unit, the second flow meter, the second pressure sensing device and the third pressure sensing device to the outside.
The implementation of the free water injection module of the deepwater sea pipe has the following beneficial effects: the module realizes free water injection operation of the marine pipe at the deep sea bottom, the installed medicament suction device is convenient for injection of medicaments, the medicament injection requirement is met, the flow control unit throttles and reduces pressure of injected fluid so that the injected medium cannot damage the marine pipe and meet the water injection speed requirement, free water injection operation can be implemented on the marine pipe with the water depth of 1500 and 3000 meters, and technical guarantee is provided for development of deep water oil and gas fields.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a module of a free water injection module of a deepwater sea pipe in an embodiment of the invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the deepwater sea pipe free water injection module in a preferred embodiment of the present invention includes a pipeline 1, a flow rate detection device 2 disposed on the pipeline 1 along a flowing direction of seawater, a drug inhalation device 3, a flow rate control unit 4, and a connector 5.
The flow rate detection device 2 detects the flow rate of seawater entering the pipeline 1 so that the amount of seawater flowing into the pipeline 1 is monitored.
The medicament is absorbed into the medicament suction device 3 to take away the medicament when water flows, the medicament is sent into the pipeline 1 to treat the marine pipe by using the medicament, and some sterilization medicaments, medicaments for removing oxygen and medicaments for inhibiting corrosion are added into inflow seawater to protect the inner wall of the marine pipe to a certain extent and prevent bacteria or salt in the seawater from corroding the wall of the marine pipe.
Further, the flow control unit 4 controls the flow of the seawater flowing through the pipeline 1, so that throttling and pressure reduction are realized, the pressure of the seawater injected into the seawater pipe is reduced, and the seawater pipe is prevented from being damaged.
The connector 5 is used for being connected with a sea pipe so as to inject the sea water with the medicament into the sea pipe and freely inject water into the sea pipe.
The module realizes free water injection operation of the marine pipe at the deep sea bottom, the installed medicament suction device 3 is convenient for injection of medicaments and meets the requirement of medicament injection, the flow control unit 4 throttles and reduces pressure of injected fluid so that the injected medium cannot damage the marine pipe and meets the requirement of water injection speed, free water injection operation can be implemented on the marine pipe with the water depth of 1500-3000 meters, and technical guarantee is provided for development of deep water oil and gas fields.
When the submarine pipe is free to inject water, the pressure in the submarine pipe is 1 atmosphere, the pressure of deep water outside the submarine pipe is reduced, and the submarine pipe is free to inject water by taking the pressure difference between the inside and the outside of the submarine pipe as power.
In some embodiments, the water injection module further comprises a filtering device 6 for filtering the seawater entering the pipeline 1, so as to prevent impurities in the seawater and the like from entering the pipeline 1 and damaging the pipeline 1 and other devices on the pipeline 1.
Preferably, the flow control unit 4 includes a first flow meter that can detect the amount of seawater flowing into the chemical suction device 3.
Usually, in order to monitor the pressure in each point of the pipeline 1, the water injection module further comprises a first pressure sensing device 11, a second pressure sensing device 12 and a third pressure sensing device 13, and when the pressure is abnormal, the abnormal problem caused by the over-high pressure of the pipeline 1 can be timely found out and avoided.
A first pressure sensing means 11 is provided upstream of the flow detection means 2 to detect the pressure of the water entering the pipeline 1; the second pressure sensing means 12 is provided between the medicine inhalation device 3 and the flow control unit 4 to detect the pressure of water flowing out from the medicine inhalation device 3; the third pressure sensing means 13 is arranged downstream of the flow control unit 4 to detect the pressure of the water flowing to the connection head 5.
Typically, the water filling module further comprises a control switch 14 arranged between the flow control unit 4 and the connection head 5, which controls the supply of water from the line 1 to the connection head 5. A third pressure sensing means 13 is arranged between the control switch 14 and the connection head 5 for sensing the pressure of the water supply to the connection head 5.
Further, the control switch 14 is a control valve, facilitating the switching of the control line 1.
In some embodiments, in order to keep the medicine in the medicine inhaler 3, the water injection module further comprises a medicine injector 31 for delivering the medicine into the medicine inhaler 3, and the medicine is continuously injected into the medicine inhaler 3, and no medicine is left during operation.
A second flowmeter 32 for monitoring the amount of the medicine to be injected is provided between the medicine injection device 31 and the medicine inhalation device 3, so that the amount of the medicine to be injected can be monitored in real time, and the amount of the medicine to be injected can be ensured to be within a controllable range.
Preferably, the medicine injection device 31 is a medicine bag, and the mouth of the medicine bag is inserted into the inlet tube, so that the medicine bag is convenient to replace, and only one medicine bag is replaced after use.
Further, in order to obtain pressure data, flow data and the like of each position in real time, the water injection module further includes a data hub 7 for transmitting data of the first pressure sensing device 11, the flow control unit 4, the second flow meter 32, the second pressure sensing device 12 and the third pressure sensing device 13 to the outside, and the data hub 7 transmits the obtained data to a user side for related processing.
The working process of the invention is as follows:
when the invention is adopted to implement the free water injection operation of the sea pipe, the deep water free water injection module is firstly arranged near the submarine pipeline 1.
Seawater enters the pipeline 1 through the deep water filter to realize seawater injection;
the first pressure sensing device 11 records the pressure parameter of the seawater, and the flow detection device 2 measures the flow parameter of the seawater;
when the seawater passes through the medicament suction device 3, the flow velocity in the pipe is increased, the pressure is reduced, and the reduction of the pressure is convenient for the automatic suction of the medicament;
the chemical agent enters the agent inhalation device 3 and the pipeline 1 from the agent bag through the second flow meter 32;
the mixed liquid of seawater and medicament enters a flow control unit 4 through a pipeline 1, the flow control unit 4 mainly reduces the pressure of fluid, if throttling decompression is not adopted, the pressure of seawater entering a seawater pipe is very high, the seawater pipe is damaged, the flow rate of the seawater entering the seawater pipe is very high, and the speed of a spherical pig is far higher than the standard spherical speed by 0.5-1 m/s;
after the seawater is throttled and decompressed, the seawater enters the sea pipe through the connector 5 after passing through the control switch 14, and free water injection is carried out;
during operation, parameters recorded by the flow detection device 2, the second flow meter 32, the first pressure sensing device 11, the second pressure sensing device 12 and the third pressure sensing device 13 are transmitted to the data center 7 through cables.
The second pressure sensing means 12 measures the pressure in the pipe in front of the flow control unit 4, the third pressure sensing means 13 measures the pressure in the pipe in front of the sea chest connector, the flow detection means 2 measures the flow in the main line 1, the second flow meter 32 measures the flow in the chemical agent line 1, and the measurement data is transmitted to the data hub 7 by cable.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The free water injection module of the deepwater sea pipe is characterized by comprising a pipeline (1), a flow detection device (2) arranged on the pipeline (1) along the flowing direction of seawater, a medicament suction device (3), a flow control unit (4) and a connector (5);
the flow detection device (2) detects the flow of the seawater entering the pipeline (1);
the medicament is sucked in the medicament suction device (3) so as to take away the medicament when water flows through, and the medicament is sent into the pipeline (1) so as to treat the marine vessel by using the medicament;
the flow control unit (4) controls the flow of the seawater flowing in the pipeline (1);
the connector (5) is used for being connected with a sea pipe so as to inject seawater with medicaments into the sea pipe.
2. Deepwater subsea module according to claim 1, characterized in that the waterflooding module further comprises a filtering device (6) for filtering the seawater entering the pipeline (1).
3. The deepwater marine pipe free waterflooding module as defined in claim 1, wherein the flow control unit (4) comprises a first flow meter.
4. The deepwater marine pipe free waterflooding module as recited in claim 1, further comprising a first pressure sensing device (11), a second pressure sensing device (12), a third pressure sensing device (13);
-said first pressure sensing means (11) are arranged upstream of said flow detection means (2) to detect the pressure of the water entering said line (1);
the second pressure sensing means (12) is arranged between the medicament inhalation device (3) and the flow control unit (4) to detect the pressure of water flowing out of the medicament inhalation device (3);
the third pressure sensing means (13) is arranged downstream of the flow control unit (4) to detect the pressure of the water flowing to the connection head (5).
5. The free water injection module for deepwater marine pipes according to claim 4, further comprising a control switch (14) disposed between the flow control unit (4) and the connector (5), wherein the third pressure sensing device (13) is disposed between the control switch (14) and the connector (5).
6. The deepwater subsea pipe free waterflooding module as defined in claim 5, wherein the control switch (14) is a control valve.
7. The deepwater subsea pipe free waterflood module as defined in claim 4, further comprising a medicament injection means (31) for feeding a medicament to the medicament suction means (3).
8. The deepwater subsea pipe free waterflood module as defined in claim 7, wherein a second flow meter (32) for monitoring the amount of the agent delivered is provided between the agent injection means (31) and the agent inhalation means (3).
9. The deepwater sea free waterflooding module as recited in claim 7, wherein the agent injection device (31) is a drug bag.
10. The deepwater subsea pipe free waterflood module as defined in claim 7, further comprising a data hub (7) for communicating data of the first pressure sensing device (11), the flow control unit (4), the second flow meter (32), the second pressure sensing device (12), the third pressure sensing device (13) outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575984.2A CN114233242A (en) | 2021-12-21 | 2021-12-21 | Free water injection module for deepwater sea pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575984.2A CN114233242A (en) | 2021-12-21 | 2021-12-21 | Free water injection module for deepwater sea pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233242A true CN114233242A (en) | 2022-03-25 |
Family
ID=80760936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111575984.2A Pending CN114233242A (en) | 2021-12-21 | 2021-12-21 | Free water injection module for deepwater sea pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233242A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2841323A1 (en) * | 2002-06-21 | 2003-12-26 | Cybernetix | Immersible pig station for submerged pipeline cleaning, includes equipment to detect and clear filter blockages |
| US20040168811A1 (en) * | 2002-08-14 | 2004-09-02 | Bake Hughes Incorporated | Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
| CN109339754A (en) * | 2018-12-13 | 2019-02-15 | 美钻深海能源科技研发（上海）有限公司 | Marine oil field closing well robotics injection device |
| CN109500011A (en) * | 2018-12-10 | 2019-03-22 | 美钻深海能源科技研发（上海）有限公司 | Pipeline under the ocean seawater injects flow assurance system |
| CN208933283U (en) * | 2018-09-20 | 2019-06-04 | 西南石油大学 | A kind of on-demand automatic filling crude oil removes scale preventative device |
| CN110252750A (en) * | 2019-06-12 | 2019-09-20 | 海洋石油工程股份有限公司 | A kind of equipment applied to deep-sea oil gas pipeline cleaning operation |
| CN111456684A (en) * | 2020-04-03 | 2020-07-28 | 中海石油深海开发有限公司 | Chemical agent injection system and method for deepwater underwater wellhead |
-
2021
- 2021-12-21 CN CN202111575984.2A patent/CN114233242A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2841323A1 (en) * | 2002-06-21 | 2003-12-26 | Cybernetix | Immersible pig station for submerged pipeline cleaning, includes equipment to detect and clear filter blockages |
| US20040168811A1 (en) * | 2002-08-14 | 2004-09-02 | Bake Hughes Incorporated | Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
| CN208933283U (en) * | 2018-09-20 | 2019-06-04 | 西南石油大学 | A kind of on-demand automatic filling crude oil removes scale preventative device |
| CN109500011A (en) * | 2018-12-10 | 2019-03-22 | 美钻深海能源科技研发（上海）有限公司 | Pipeline under the ocean seawater injects flow assurance system |
| CN109339754A (en) * | 2018-12-13 | 2019-02-15 | 美钻深海能源科技研发（上海）有限公司 | Marine oil field closing well robotics injection device |
| CN110252750A (en) * | 2019-06-12 | 2019-09-20 | 海洋石油工程股份有限公司 | A kind of equipment applied to deep-sea oil gas pipeline cleaning operation |
| CN111456684A (en) * | 2020-04-03 | 2020-07-28 | 中海石油深海开发有限公司 | Chemical agent injection system and method for deepwater underwater wellhead |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10196891B2 (en) | Fluid injection system | |
| CN103726834B (en) | A kind of sustained casing pressure diagnosis device and method | |
| CN205301140U (en) | Simulation oil pipe corrodes visual device of scale deposit | |
| CN210564481U (en) | Automatic defense device for hydrate of deepwater drilling kill line | |
| CN206557197U (en) | It is a kind of to be used for the experimental provision of gas hydrate study in deep water hydrocarbon gathering line | |
| CN103194758B (en) | Forming device for gas production pipeline corrosion inhibitor slug pre-film | |
| CN105403673A (en) | Device and method for natural gas hydrate control technical research in oil and gas conveying pipeline | |
| CN114233242A (en) | Free water injection module for deepwater sea pipe | |
| CN105334296A (en) | Device applied to control technology research of natural gas hydrate in oil gas conveying pipe | |
| CN207366216U (en) | Fire fighting truck conservancy property continuous operation test platform | |
| EP3551843B1 (en) | Fluid injection system | |
| CN208933283U (en) | A kind of on-demand automatic filling crude oil removes scale preventative device | |
| CN109500011B (en) | Seawater injection flow guarantee system for submarine oil pipeline | |
| CN206308194U (en) | A kind of water purification system | |
| ES2925995T3 (en) | Apparatus, systems and methods for oil and gas operations | |
| CN206459021U (en) | A kind of gas pipeline leakage detection means | |
| CN209918496U (en) | Quick cleaning device of pressure transmitter connecting pipe | |
| CN104213905B (en) | A kind of automatic kill-job process of underground work and device | |
| CN209287887U (en) | Pipeline under the ocean seawater injects flow assurance system | |
| CN104324916B (en) | Hydrate administers sledge | |
| CN107559601A (en) | A kind of plastic pipe inner wall detection means | |
| CN211627307U (en) | Seawater filter scouring test device | |
| CN210774153U (en) | Pollution standard exceeding emergency closing device for industrial wastewater drain outlet | |
| CN208805315U (en) | A kind of intelligent gas membranous system for pressure gauge measurement | |
| CN102636814B (en) | A kind of method of monitoring the underground water of extraction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |