CN114809974B - Wellhead Christmas tree device for multi-pipe corrosion prevention - Google Patents
Wellhead Christmas tree device for multi-pipe corrosion prevention Download PDFInfo
- Publication number
- CN114809974B CN114809974B CN202210578849.1A CN202210578849A CN114809974B CN 114809974 B CN114809974 B CN 114809974B CN 202210578849 A CN202210578849 A CN 202210578849A CN 114809974 B CN114809974 B CN 114809974B
- Authority
- CN
- China
- Prior art keywords
- pipe
- sealing
- frame
- connecting frame
- grooves
- 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.)
- Active
Links
- 241000191291 Abies alba Species 0.000 title claims abstract description 18
- 238000005536 corrosion prevention Methods 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 54
- 239000012530 fluid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design 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
- 238000012544 monitoring process Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance 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
- 238000012806 monitoring device Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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)
- Earth Drilling (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to the technical field of oil gas wellhead, in particular to a wellhead christmas tree device for multitube corrosion prevention, which comprises an inner oil pipe and an outer oil pipe, wherein a plurality of stop valves are arranged on the surface of the outer oil pipe, and a sealing mechanism is arranged on one side of each stop valve.
Description
Technical Field
The invention relates to the technical field of oil and gas wellheads, in particular to a wellhead Christmas tree device for multi-pipe corrosion prevention.
Background
A christmas tree is a component located at the opening to the top of a well, comprising valves for measurement and maintenance, a safety system and a series of monitoring devices, the christmas tree connecting production and production lines from downhole and acting as an important barrier to the outside environment at the top of the well, comprising a number of valves that can be used to regulate or prevent the surging of produced crude oil vapors, natural gas and liquids from the well;
at present, in structural design of a christmas tree for wellhead oil extraction, a flange is usually only used for fixedly connecting a connecting position of a conduit and a connecting pipe on the christmas tree, however, when the christmas tree works, fluid is continuously communicated inside the connecting position of the conduit and the connecting pipe, and the connecting position of the conduit and the connecting pipe is exposed to a humid environment, so that corrosion is easily caused at the connecting position of the conduit and the connecting pipe, the connection tightness between the conduit and the connecting pipe is reduced, and then the fluid inside the conduit and the connecting pipe leaks, thereby influencing the normal working operation of the christmas tree;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a wellhead Christmas tree device for multi-pipe corrosion prevention, which solves the problems that the connection of a conduit and a connecting pipe is lack of corrosion prevention, the connection of the conduit and the connecting pipe is easy to corrode, the tightness of the connection is reduced, and the normal working and running of the Christmas tree are affected.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the wellhead Christmas tree device comprises an inner layer oil pipe and an outer layer oil pipe, wherein the inner layer oil pipe is arranged in the outer layer oil pipe, a plurality of stop valves are arranged on the surface of the outer layer oil pipe, the stop valves above the outer layer oil pipe are connected with each other through four-way connectors, guide pipes are arranged in the stop valves, and a sealing mechanism is arranged on one side of each of the stop valves;
sealing mechanism includes the connecting frame, and one side fixed connection of connecting frame's one side and stop valve, the inside of connecting frame is provided with the sealing frame, and the top of connecting frame is provided with the manometer, the bottom of manometer extends to the inside of sealing frame, and the both sides of sealing frame all are provided with pressure sensor, the one end of pipe extends to the inside of connecting frame, and the pipe is located the inside one end of connecting frame and runs through the sealing frame and extend to the inside of sealing frame, the right side of connecting frame is provided with the connecting pipe, and the one end of connecting pipe extends to the inside of sealing frame, the inside of sealing frame is provided with coupling assembling, and the one end of pipe and connecting pipe all with coupling assembling's internal connection, the both sides of connecting frame bottom all are provided with first glib talker, and the one end of two first glib talkers all extends to the inside of connecting frame, the bottom of sealing frame is provided with the second glib, and the bottom of second glib is extended to the outside of connecting frame.
Preferably, the connecting assembly comprises a connecting frame, the peripheral surface of the connecting frame is fixedly connected with the inner wall of the sealing frame, connecting grooves are formed in two sides of the connecting frame, through holes are formed between the two connecting grooves, one ends of the guide pipe and the connecting pipe extend to the interiors of the two connecting grooves respectively, the first sealing rings are arranged at one ends of the guide pipe and the connecting pipe, a sealing pipe is arranged at one end of the connecting pipe, and a pipe body is arranged at one end of the sealing pipe.
Preferably, the surface symmetry of pipe and connecting pipe has seted up two spacing grooves, and the inside of two spacing grooves all is provided with spacing post movably.
Preferably, the inside slip of link is provided with the fly leaf, and the top of fly leaf and the bottom fixed connection of spacing post, the bottom of fly leaf is provided with the spring, and one end and the one side fixed connection of link inner wall of spring, the inside of link just is provided with the electro-magnet in the below of fly leaf, and the bottom of fly leaf is provided with the metal attraction piece.
Preferably, the external threads are respectively arranged on one side of the surfaces of the guide pipe and the connecting pipe, and the internal threads matched with the external threads are respectively arranged on one side of the inner walls of the two connecting grooves.
Preferably, a sealing groove matched with the sealing tube is formed in one end of the guide tube, and a second sealing ring is arranged on one side of the inner wall of the sealing groove.
Preferably, the top and the bottom of the connecting frame are provided with through grooves, and the insides of the two through grooves are respectively communicated with the insides of the pressure gauge and the second oil inlet nozzle.
Preferably, the surface of the connecting pipe is in sealing connection with one side of the connecting frame through a connecting flange, a connecting threaded hole is formed in the left side of the connecting frame, and a positioning threaded hole is formed in one side of the connecting threaded hole.
(III) beneficial effects
The invention provides a wellhead christmas tree device for multi-pipe corrosion prevention, which has the following beneficial effects compared with the prior art:
through setting up sealing frame and connecting frame in the junction of pipe and connecting pipe, utilize to let oil in the inside of sealing frame, let the junction port of pipe and connecting pipe be in under the oil blanket state of oil, adopt oil to carry out the oil blanket to pipe and connecting pipe port, not only solved the problem that pipe and connecting pipe port reduce the leakproofness because of the corruption, the leakproofness of connection between pipe and the connecting pipe plays the monitoring role simultaneously, the inside of pipe and the inside intercommunication of sealing frame have been destroyed to the connectivity between pipe and connecting pipe, if the inside fluid pressure of pipe is big, then also can cause the inside oil pressure increase of sealing frame, otherwise cause the inside oil pressure of sealing frame to reduce, carry out real-time supervision to the oil pressure state in the sealing frame through the manometer, in time reveal the sealing between pipe and the connecting pipe and report to the police. Through set up the link in the inside of sealing frame to utilize the spacing groove that spacing post cooperation that sets up in the link offered on pipe and connecting pipe surface, realize the quick connect to pipe and connecting pipe in sealing frame, the design of cooperation first sealing washer and second sealing washer guarantees the connection leakproofness between pipe and the connecting pipe. Oil is arranged on two sides of the inside of the connecting frame, oil seal treatment is carried out on the surfaces of the guide pipe and the connecting pipe, the anti-corrosion effect of the guide pipe and the connecting pipe at the joint is further improved, and meanwhile when sealing leakage occurs at the joint of the connecting pipe and the guide pipe, the sealing frame and the connecting frame are matched with each other, so that the waste of resources caused by leakage at the joint is reduced, the connection safety between the guide pipe and the connecting pipe is further improved, and the use safety of a wellhead Christmas tree is guaranteed.
Drawings
FIG. 1 is a schematic illustration of a wellhead tree device configuration for multi-pipe corrosion protection in accordance with the present invention;
FIG. 2 is a cross-sectional view of the seal mechanism structure of the present invention;
FIG. 3 is a cross-sectional view of a connection frame and seal frame structure of the present invention;
FIG. 4 is a schematic view of a connecting tube structure according to the present invention;
FIG. 5 is a schematic view of a catheter structure of the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 3A in accordance with the present invention;
fig. 7 is a schematic view of a structure of a connecting frame according to the present invention.
In the figure: 10. an inner layer oil pipe; 20. an outer layer oil pipe; 30. a stop valve; 40. a conduit; 50. a connecting flange; 60. a connecting threaded hole; 70. positioning the threaded hole; 80. a third seal ring; 101. a connection frame; 102. a sealing frame; 103. a pressure gauge; 104. a connecting pipe; 105. a first oil inlet nozzle; 106. a second oil inlet nozzle; 201. a connecting frame; 202. a connecting groove; 203. a first seal ring; 204. sealing the tube; 205. a tube body; 206. a limit groove; 207. a limit column; 208. a movable plate; 209. a spring; 210. an electromagnet; 211. an external thread; 212. an internal thread; 213. sealing grooves; 214. a second seal ring; 215. and (5) through grooves.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1-7, a wellhead christmas tree device for multi-pipe corrosion prevention includes an inner layer oil pipe 10 and an outer layer oil pipe 20, wherein the inner layer oil pipe 10 is arranged in the outer layer oil pipe 20, a plurality of stop valves 30 are arranged on the surface of the outer layer oil pipe 20, the stop valves 30 above the outer layer oil pipe 20 are connected with each other through a four-way joint, a conduit 40 is arranged in each of the stop valves 30, and a sealing mechanism is arranged on one side of each of the stop valves 30;
the sealing mechanism comprises a connecting frame 101, one side of the connecting frame 101 is fixedly connected with one side of a stop valve 30, a sealing frame 102 is arranged in the connecting frame 101, a pressure gauge 103 is arranged at the top of the connecting frame 101, the bottom ends of the pressure gauge 103 extend to the inside of the sealing frame 102, pressure sensors are arranged on two sides of the sealing frame 102, one end of a guide pipe 40 extends to the inside of the connecting frame 101, one end of the guide pipe 40 positioned in the connecting frame 101 penetrates through the sealing frame 102 and extends to the inside of the sealing frame 102, a connecting pipe 104 is arranged on the right side of the connecting frame 101, one end of the connecting pipe 104 extends to the inside of the sealing frame 102, a connecting component is arranged in the inside of the sealing frame 102, one end of the guide pipe 40 and one end of the connecting pipe 104 are connected with the inside of the connecting component, a first oil inlet nozzle 105 is arranged on two sides of the bottom of the connecting frame 101, a second oil inlet nozzle 106 is arranged at the bottom of the sealing frame 102, and the bottom end of the second oil inlet nozzle 106 extends to the outside of the connecting frame 101;
after connecting the guide pipe 40 and the connecting pipe 104 in the sealing frame 102, a sealing gasket is arranged between the surfaces of the guide pipe 40 and the connecting pipe 104 and the inside of the sealing frame 102, so that the inside of the sealing frame 102 and the inside of the connecting frame 101 are sealed and separated, oil is introduced into the inside of the connecting frame 101 through the first oil inlet nozzle 105, oil pressure values at two sides of the inside of the connecting frame 101 are collected and recorded through the pressure sensor, the connecting part of the connecting pipe 104 and the guide pipe 40 is subjected to sealing treatment in the process of application of the connecting frame 101, and meanwhile oil is used at two ends of the connecting pipe 104 and the guide pipe 40 for oil sealing, so that the condition that corrosion is generated when the connecting part of the connecting pipe 104 and the guide pipe 40 is exposed in a humid environment is avoided, and the problem that the normal operation and the working of a wellhead tree are influenced because the corrosion reduces the fluid transmission tightness of the connecting pipe 104 and the guide pipe 40 is solved.
The connecting assembly comprises a connecting frame 201, the peripheral surface of the connecting frame 201 is fixedly connected with the inner wall of a sealing frame 102, connecting grooves 202 are formed in two sides of the connecting frame 201, through holes are formed between the two connecting grooves 202, one ends of a guide pipe 40 and a connecting pipe 104 are respectively extended to the interiors of the two connecting grooves 202, a first sealing ring 203 is arranged at one ends of the guide pipe 40 and the connecting pipe 104, a sealing pipe 204 is arranged at one end of the connecting pipe 104, a pipe body 205 is arranged at one end of the sealing pipe 204, two limiting grooves 206 are symmetrically formed in the surfaces of the guide pipe 40 and the connecting pipe 104, limiting columns 207 are movably arranged in the interiors of the two limiting grooves 206, a movable plate 208 is slidably arranged in the connecting frame 201, the top of the movable plate 208 is fixedly connected with the bottom end of the limiting columns 207, a spring 209 is arranged at the bottom of the movable plate 208, one end of the spring 209 is fixedly connected with one side of the inner wall of the connecting frame 201, an electromagnet 210 is arranged below the movable plate 208, a metal attraction block is arranged at the bottom of the connecting pipe 40 and one side of the surface of the connecting pipe 104, an external thread 211 is formed at one side of the surface of the guide pipe 40 and the connecting pipe 104, and two external threads 211 are respectively arranged at one side of the two sides of the inner walls of the connecting grooves 202 and the two external threads 212 are matched with the external threads 212;
when the conduit 40 and the connecting pipe 104 are connected in the sealing frame 102, one ends of the conduit 40 and the connecting pipe 104 are respectively inserted into two sides of the sealing frame 102, at the moment, the electromagnet 210 is electrified, the electromagnet 210 is utilized to attract the metal attraction block at the bottom of the movable plate 208, the limit column 207 enters the inside of the connecting frame 201, one ends of the conduit 40 and the connecting pipe 104 respectively enter the connecting grooves 202 at two sides of the connecting frame 201, the external threads 211 on the surfaces of the conduit 40 and the connecting pipe 104 are matched and connected with the internal threads 212 on one side of the inner walls of the connecting grooves 202 until one ends of the conduit 40 and the connecting pipe 104 are pressed on one side of the first sealing ring 203 on one side of the inner walls of the two connecting grooves 202, the electromagnet 210 is powered off, one ends of the limit column 207 are inserted into the limit groove 206 under the action of the spring 209, the connection of the conduit 40 and the connecting pipe 104 inside the sealing frame 102 is completed, the sealing pipe 204 and the pipe 205 at one end of the connecting pipe 104 are inserted into the conduit 40, then the second oil inlet nozzle 106 is used for leading the ports of the connecting pipe 104 and the connecting pipe 104 to be in oil liquid, the pressure gauge 103 is used for monitoring the oil pressure in the sealing frame 102 in real time, when the oil pressure value in the sealing frame 102 is too large or too small, the conduit 40 at the position is immediately sealed by the stop valve 30, then the connection between the conduit 40 and the connecting pipe 104 is maintained and overhauled, the oil liquid is used for sealing the ports of the conduit 40 and the connecting pipe 104, the problem that the sealing performance of the ports of the conduit 40 and the connecting pipe 104 is reduced due to corrosion is solved, meanwhile, the connection sealing performance between the conduit 40 and the connecting pipe 104 is monitored, after the connection sealing performance between the conduit 40 and the connecting pipe 104 is damaged, the interior of the conduit 40 is communicated with the interior of the sealing frame 102, if the fluid pressure in the conduit 40 is large, the oil pressure inside the sealing frame 102 is increased, otherwise, the oil pressure inside the sealing frame 102 is reduced, the oil pressure in the sealing frame 102 is monitored in real time by the pressure gauge 103, and the sealing leakage between the conduit 40 and the connecting pipe 104 is timely alarmed.
Example 2:
as a further supplement to the above embodiment, in the present invention, one end of the conduit 40 is provided with a sealing groove 213 matched with the sealing tube 204, and one side of the inner wall of the sealing groove 213 is provided with a second sealing ring 214, so that the sealing property between the conduit 40 and the connecting tube 104 is improved by using the second sealing ring 214.
The top and the bottom of link 201 have all been seted up logical groove 215, and the inside of two logical grooves 215 communicates with the inside of manometer 103 and second glib 106 respectively, realizes the intercommunication of manometer 103 and second glib 106 and sealing frame 102 inside respectively through two logical grooves 215, and then realizes the real-time supervision to the letting in and the fluid pressure of fluid in the sealing frame 102.
Example 3:
as a further supplement to the above embodiment, in the present invention, the surface of the connecting pipe 104 is hermetically connected to one side of the connecting frame 101 through the connecting flange 50, the left side of the connecting frame 101 is provided with the connecting threaded hole 60, one side of the connecting threaded hole 60 is provided with the positioning threaded hole 70, the connecting frame 101 is fixedly connected to one side of the stop valve 30 through the connecting threaded hole 60 and the positioning threaded hole 70, and meanwhile, the connecting threaded hole 60 is used for limiting the conduit 40 in the connecting frame 101; the surface of the connection pipe 104 is provided with the third seal ring 80, and one side of the third seal ring 80 is in contact with the left side inside the connection frame 101.
Example 4:
referring to fig. 1-7, the invention also discloses a method for using the wellhead christmas tree device for multi-pipe corrosion prevention, which specifically comprises the following steps:
firstly, one ends of a conduit 40 and a connecting pipe 104 are respectively inserted into two sides of a sealing frame 102, at the moment, an electromagnet 210 is electrified, a metal attraction block at the bottom of a movable plate 208 is attracted by the electromagnet 210, a limit column 207 enters the inside of a connecting frame 201, one ends of the conduit 40 and the connecting pipe 104 enter connecting grooves 202 at two sides of the connecting frame 201 respectively, and the conduit 40 and the connecting pipe 104 are connected in a matched manner through external threads 211 on the surfaces of the conduit 40 and the connecting pipe 104 and internal threads 212 on one side of the inner walls of the connecting grooves 202 until one ends of the conduit 40 and the connecting pipe 104 are pressed on one side of a first sealing ring 203 on one side of the inner walls of the two connecting grooves 202, the electromagnet 210 is powered off, one ends of the limit column 207 are inserted into the limit grooves 206 under the action of a spring 209, and the connection of the conduit 40 and the connecting pipe 104 in the sealing frame 102 is completed;
step two, oil is passed through the second oil inlet nozzle 106 to the inside of the sealing frame 102, so that the ports of the connecting pipe 104 and the guide pipe 40 are both in the oil, the oil pressure in the sealing frame 102 is monitored in real time by utilizing the pressure gauge 103, when the oil pressure value in the sealing frame 102 is too large or too small, the guide pipe 40 at the position is immediately sealed by the stop valve 30, and then the connection between the guide pipe 40 and the connecting pipe 104 at the position is maintained;
step three, after connecting the conduit 40 and the connecting pipe 104 in the sealing frame 102, a sealing gasket is arranged between the surfaces of the conduit 40 and the connecting pipe 104 and the inside of the sealing frame 102, so that the inside of the sealing frame 102 and the inside of the connecting frame 101 are sealed and separated, oil is introduced into the inside of the connecting frame 101 through the first oil inlet nozzle 105, oil pressure values at two sides of the inside of the connecting frame 101 are collected and recorded through the pressure sensor, and in the process of application of the connecting frame 101, the connecting part of the connecting pipe 104 and the conduit 40 is sealed, and meanwhile, oil is sealed at two ends of the connecting pipe 104 and the conduit 40.
And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Wellhead Christmas tree device for multitube anticorrosion, including inlayer oil pipe (10) and outer oil pipe (20), the inside of outer oil pipe (20) is provided with inlayer oil pipe (10), its characterized in that: the surface of the outer layer oil pipe (20) is provided with a plurality of stop valves (30), the stop valves (30) above the outer layer oil pipe (20) are connected with each other through four-way connectors, the inside of each stop valve (30) is provided with a guide pipe (40), and one side of each stop valve (30) is provided with a sealing mechanism;
sealing mechanism includes connecting frame (101), and one side fixed connection of connecting frame (101) and one side of stop valve (30), the inside of connecting frame (101) is provided with sealing frame (102), and the top of connecting frame (101) is provided with manometer (103), the bottom of manometer (103) extends to the inside of sealing frame (102), and the both sides of sealing frame (102) all are provided with pressure sensor, the one end of pipe (40) extends to the inside of connecting frame (101), and one end that pipe (40) is located the inside of connecting frame (101) runs through sealing frame (102) and extends to the inside of sealing frame (102), the right side of connecting frame (101) is provided with connecting pipe (104), and the one end of connecting pipe (104) extends to the inside of sealing frame (102), the inside of sealing frame (102) is provided with coupling assembling, and the one end of pipe (40) and coupling assembling all is connected with the inside of coupling assembling, the both sides of connecting frame (101) bottom all are provided with first glib (105), and two first glib talker (105) and the inside of extending to the inside of sealing frame (102), two glib (106) are connected to the inside of extending to the inside of sealing frame (102).
2. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 1 wherein: the connecting assembly comprises a connecting frame (201), the peripheral surface of the connecting frame (201) is fixedly connected with the inner wall of the sealing frame (102), connecting grooves (202) are formed in two sides of the connecting frame (201), through holes are formed between the two connecting grooves (202), one ends of the guide pipe (40) and the connecting pipe (104) are respectively extended to the interiors of the two connecting grooves (202), the first sealing rings (203) are respectively arranged at one ends of the guide pipe (40) and the connecting pipe (104), sealing pipes (204) are arranged at one ends of the connecting pipe (104), and pipe bodies (205) are arranged at one ends of the sealing pipes (204).
3. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 2 wherein: two limit grooves (206) are symmetrically formed in the surfaces of the guide pipe (40) and the connecting pipe (104), and limit columns (207) are movably arranged in the two limit grooves (206).
4. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 3 wherein: the inside slip of link (201) is provided with fly leaf (208), and the top of fly leaf (208) and the bottom fixed connection of spacing post (207), the bottom of fly leaf (208) is provided with spring (209), and one end and one side fixed connection of link (201) inner wall of spring (209), the inside of link (201) just is provided with electro-magnet (210) in the below of fly leaf (208), and the bottom of fly leaf (208) is provided with the metal attraction piece.
5. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 2 wherein: external threads (211) are formed on one side of the surfaces of the guide pipe (40) and the connecting pipe (104), and internal threads (212) matched with the external threads (211) are formed on one side of the inner walls of the two connecting grooves (202).
6. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 2 wherein: one end of the guide pipe (40) is provided with a sealing groove (213) matched with the sealing pipe (204), and one side of the inner wall of the sealing groove (213) is provided with a second sealing ring (214).
7. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 2 wherein: the top and the bottom of link (201) all have seted up logical groove (215), and the inside of two logical grooves (215) communicates with manometer (103) and second glib talker (106) respectively.
8. A wellhead tree device for multi-pipe corrosion protection as claimed in claim 1 wherein: the surface of connecting pipe (104) carries out sealing connection through flange (50) between one side of connecting frame (101), connecting screw hole (60) have been seted up in the left side of connecting frame (101), and locating screw hole (70) have been seted up on one side of connecting screw hole (60), the surface of connecting pipe (104) is provided with third sealing washer (80), and one side of third sealing washer (80) and the inside left side contact of connecting frame (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210578849.1A CN114809974B (en) | 2022-05-26 | 2022-05-26 | Wellhead Christmas tree device for multi-pipe corrosion prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210578849.1A CN114809974B (en) | 2022-05-26 | 2022-05-26 | Wellhead Christmas tree device for multi-pipe corrosion prevention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114809974A CN114809974A (en) | 2022-07-29 |
| CN114809974B true CN114809974B (en) | 2023-11-17 |
Family
ID=82517038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210578849.1A Active CN114809974B (en) | 2022-05-26 | 2022-05-26 | Wellhead Christmas tree device for multi-pipe corrosion prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114809974B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2454857A1 (en) * | 2003-02-07 | 2004-08-07 | Stream-Flo Industries Ltd. | Y-body christmas tree for use with coil tubing |
| WO2012024440A2 (en) * | 2010-08-17 | 2012-02-23 | Wild Well Control, Inc. | Retrieving a subsea tree plug |
| CN206360695U (en) * | 2016-12-26 | 2017-07-28 | 中国石油化工股份有限公司 | Downhole sampler considers sand joint |
| CN210714594U (en) * | 2019-10-18 | 2020-06-09 | 江苏益马机械有限公司 | Oil production wellhead assembly with spring safety valve |
| CN211924134U (en) * | 2019-09-25 | 2020-11-13 | 美钻石油钻采***（南京）有限公司 | Oil pipe cross device for oil field wellhead device and Christmas tree |
| CN212225182U (en) * | 2020-05-08 | 2020-12-25 | 江苏益马机械有限公司 | Eccentric electric submersible pump integral production tree wellhead |
| CN212563164U (en) * | 2020-07-06 | 2021-02-19 | 熊煜 | Well head protector for oil and gas field development |
| US10975654B1 (en) * | 2019-11-07 | 2021-04-13 | Saudi Arabian Oil Company | Wellhead telescopic adaptor for wellhead assembly |
| CN112983330A (en) * | 2021-03-15 | 2021-06-18 | 淮阴工学院 | Christmas tree wellhead device |
| CN114016946A (en) * | 2021-11-24 | 2022-02-08 | 陕西延长石油金石钻采设备有限公司 | CO (carbon monoxide)2Wellhead device for oil displacement |
| CN114199628A (en) * | 2022-02-21 | 2022-03-18 | 东营芯享石油科技有限公司 | Sampler with multi-point homogeneous mixing collection function for oil field |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2539212C (en) * | 2003-02-25 | 2011-05-24 | General Oil Tools, Lp | Method and apparatus to complete a well having tubing inserted through a valve |
-
2022
- 2022-05-26 CN CN202210578849.1A patent/CN114809974B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2454857A1 (en) * | 2003-02-07 | 2004-08-07 | Stream-Flo Industries Ltd. | Y-body christmas tree for use with coil tubing |
| WO2012024440A2 (en) * | 2010-08-17 | 2012-02-23 | Wild Well Control, Inc. | Retrieving a subsea tree plug |
| CN206360695U (en) * | 2016-12-26 | 2017-07-28 | 中国石油化工股份有限公司 | Downhole sampler considers sand joint |
| CN211924134U (en) * | 2019-09-25 | 2020-11-13 | 美钻石油钻采***（南京）有限公司 | Oil pipe cross device for oil field wellhead device and Christmas tree |
| CN210714594U (en) * | 2019-10-18 | 2020-06-09 | 江苏益马机械有限公司 | Oil production wellhead assembly with spring safety valve |
| US10975654B1 (en) * | 2019-11-07 | 2021-04-13 | Saudi Arabian Oil Company | Wellhead telescopic adaptor for wellhead assembly |
| CN212225182U (en) * | 2020-05-08 | 2020-12-25 | 江苏益马机械有限公司 | Eccentric electric submersible pump integral production tree wellhead |
| CN212563164U (en) * | 2020-07-06 | 2021-02-19 | 熊煜 | Well head protector for oil and gas field development |
| CN112983330A (en) * | 2021-03-15 | 2021-06-18 | 淮阴工学院 | Christmas tree wellhead device |
| CN114016946A (en) * | 2021-11-24 | 2022-02-08 | 陕西延长石油金石钻采设备有限公司 | CO (carbon monoxide)2Wellhead device for oil displacement |
| CN114199628A (en) * | 2022-02-21 | 2022-03-18 | 东营芯享石油科技有限公司 | Sampler with multi-point homogeneous mixing collection function for oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114809974A (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150034185A1 (en) | Multi-Port Valve Device with Dual Directional Strainer | |
| CN114809974B (en) | Wellhead Christmas tree device for multi-pipe corrosion prevention | |
| CN201723871U (en) | Pipe joint sealing device | |
| CN204080109U (en) | A kind of pipeline replaceable anodic protector | |
| CN100385165C (en) | Pipe coupling | |
| CN114458178B (en) | A throttle manifold for petroleum well prevents earial drainage | |
| CN203310704U (en) | Manual pressure test device with multifunctional blowout preventer | |
| RU2347061C1 (en) | Wellhead sealing device | |
| CN204556161U (en) | A kind of pressure fluctuation sensor connector | |
| CN205743820U (en) | A kind of down-hole plugging device | |
| CN103161408B (en) | Fluid pressure type coupling alarming device | |
| CN204024568U (en) | Water injection well oil jacket plugging device | |
| CN208882583U (en) | Sealing element for sealing container opening | |
| CN203549275U (en) | Tee joint device applicable to maintaining subsea pipeline | |
| CN201867287U (en) | Sealing detection device for threads on pipe fittings in pipeline | |
| CN109958405B (en) | Oil well wellhead non-stop production replacement flow device | |
| CN216407853U (en) | Safety valve for petrochemical mining | |
| CN210888880U (en) | Blowout-prevention anti-freezing pressure tapping valve | |
| CN101576449B (en) | Combined sampling valve | |
| CN204101250U (en) | A kind of double mechanical seal stationary state pressure testing device | |
| CN201575940U (en) | Novel sampling valve | |
| CN209705504U (en) | Novel oilway distributor | |
| CN219176280U (en) | On-site immersion drilling nylon connecting device | |
| CN219198909U (en) | Automatic monitoring and alarming mechanism for pipeline leakage | |
| CN205315940U (en) | Novel online drilling device |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231023 Address after: 163000 room 706 and 707, block C1, C2 and C3, Service Outsourcing Industrial Park, No. 6-1, Xinfeng Road, Daqing high tech Zone, Daqing City, Heilongjiang Province Applicant after: DAQING XINSHUNFENG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 257000 No. 1066, Xiying village, Xindian street, Dongying District, Dongying City, Shandong Province Applicant before: Dongying Xinxiang Petroleum Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |