CN203640706U - Wellhead antiscale adding device of return-overflow-preventing ternary well - Google Patents
Wellhead antiscale adding device of return-overflow-preventing ternary well Download PDFInfo
- Publication number
- CN203640706U CN203640706U CN201420029509.4U CN201420029509U CN203640706U CN 203640706 U CN203640706 U CN 203640706U CN 201420029509 U CN201420029509 U CN 201420029509U CN 203640706 U CN203640706 U CN 203640706U
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- inner sleeve
- antiscale
- wellhead
- overflow
- draw
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Abstract
The utility model relates to the technical field of oil field operation and discloses a wellhead antiscale adding device of a return-overflow-preventing ternary well. The wellhead antiscale adding device comprises a threaded joint, a clamping groove sleeve head, a threaded medicine injection port, a medicine liquid drainage pipe and an inner sleeve. The wellhead antiscale adding device is characterized in that the clamping groove sleeve head is welded on the lower portion of the threaded joint, the inner sleeve is welded on the lower portion of the clamping groove sleeve head, the threaded medicine injection port is vertically welded on the threaded joint and vertically welded with the medicine liquid drainage pipe in the inner sleeve, and a stagnation plate is welded at the lower end of the inner sleeve. By the wellhead antiscale adding device, antiscale extravasation is eliminated, service life of wellhead equipment is prolonged, medicine adding quality is guaranteed, pump inspection cycle is prolonged, damage to underground equipment is reduced, and environmental pollution is avoided.
Description
technical field:
The utility model relates to oil field operation technical field, is specifically related to overflow-proof formula ternary well mouth of oil well with scale preventative device.
background technology:
At present, ternary is driven in Production Wells process, need be to drop filling scale remover in oil sets annular space, and well head medicine-adding flow process imperfection, only has drop medicine charging function but without overflow-proof stream function, causes part liquid to ooze out from sleeve pipe 250 gates.Not only waste liquid, and affected dosing effect, increased inspection pump rate.The liquid simultaneously oozing out is met air crystalline polamer, causes 250 gate well damages, has shortened the application life (the most serious situation tail gates can only use one month) of 250 gates.The seepage of liquid has also caused pollution to environment to a certain extent.For above-mentioned production drawback, develop overflow-proof formula ternary well mouth of oil well with scale preventative device.
summary of the invention:
The purpose of this utility model is the weak point existing in order to overcome above-mentioned prior art, and provides a kind of overflow-proof formula ternary well mouth of oil well with scale preventative device, and it is simple in structure, easy to use, is easy to large-scale promotion application.The utility model Main Function is reserved one section of dry straight length outside casing gas discharging four-way, stops overflow of drug fluid with this.
The technical solution adopted in the utility model is: this overflow-proof formula ternary well mouth of oil well is with scale preventative device, comprise that nipple, draw-in groove are pullover, screw thread medicine-pouring port, liquid drainage tube, inner sleeve, described nipple bottom welding draw-in groove is pullover, the pullover bottom welding of described draw-in groove inner sleeve, described screw thread medicine-pouring port is vertically welded on nipple, the liquid drainage tube vertical welding of described screw thread medicine-pouring port and inner sleeve the inside, described inner sleeve lower end is welded with fluid stopping plate.
As further improvement of the utility model, the diameter of described inner sleeve is less than the pullover the inside of draw-in groove draw-in groove inward flange diameter.
As further improvement of the utility model, the length of liquid drainage tube is less than the length of inner sleeve, and liquid drainage tube is in fluid stopping plate upper surface top.
The beneficial effects of the utility model are: reasonable in design, the novelty that is skillfully constructed, low cost of manufacture, is easy to large-scale promotion application.The utility model is stopped scale remover and is exosmosed, and extends the application life of wellhead equipment, ensures that dosing quality extends pump detection period, reduces the damage of underground equipment, has avoided environment pollution.
brief description of the drawings:
Fig. 1 is the main TV structure schematic diagram of the utility model 1.
Fig. 2 is the plan structure schematic diagram of the utility model 1.
Fig. 3 is the main TV structure schematic diagram of the utility model 2.
Fig. 4 is the plan structure schematic diagram of the utility model 2.
In figure: 1, nipple, 2, draw-in groove is pullover, 3, screw thread medicine-pouring port, 4, liquid drainage tube, 5, inner sleeve, 6, fluid stopping plate.
detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described further, as shown in Figure 1, overflow-proof formula ternary well mouth of oil well is with scale preventative device, comprise that nipple 1, draw-in groove are pullover 2, screw thread medicine-pouring port 3, liquid drainage tube 4, inner sleeve 5, it is characterized in that, described nipple 1 bottom welding draw-in groove pullover 2, the pullover 2 bottom welding inner sleeves 5 of described draw-in groove, described screw thread medicine-pouring port 3 is vertically welded on nipple 1, liquid drainage tube 4 vertical weldings of described screw thread medicine-pouring port 3 and inner sleeve 5 the insides, described inner sleeve 5 lower ends are welded with fluid stopping plate 6.
As shown in Figure 3, overflow-proof formula ternary well mouth of oil well is with scale preventative device, comprise that nipple 1, draw-in groove are pullover 2, screw thread medicine-pouring port 3, liquid drainage tube 4, it is characterized in that, described nipple 1 bottom welding draw-in groove pullover 2, described screw thread medicine-pouring port 3 is vertically welded on nipple 1, liquid drainage tube 4 vertical weldings of described screw thread medicine-pouring port 3 and nipple 1 the inside, described liquid drainage tube 4 bottoms be connected be about 2m draw liquid flexible pipe.
Above two kinds of technical schemes are the utility model that can address this problem.
The first, design an inner sleeve 5, being installed on sleeve pipe big four is connected in the pipeline connecing with sleeve pipe emptying 250 gates, at the interior design one liquid drainage tube 4 of inner sleeve 5, and be welded with fluid stopping plate 6(at the port of export and prevent that liquid from taking under effect at the gas of a small amount of air-flow, flow back into inner sleeve), its objective is and make oil sets annular space and retain one section of dry pipeline section with 250 gatehouses, since prevent that liquid from corroding 250 gates, when extending gate door application life, also avoid the loss of liquid, effectively ensured the quality of dosing
The second, design has the device of liquid drainage tube 4, is installed in the pipeline that sleeve pipe big four is connected with sleeve pipe emptying 250 gates, and adds screw thread at the port of export, its objective is make in the oil sets annular space about 2m of next segment length draw liquid flexible pipe, be used for preventing that liquid from refluxing corrodes 250 gates.
Claims (3)
1. overflow-proof formula ternary well mouth of oil well is with scale preventative device, comprise nipple (1), draw-in groove pullover (2), screw thread medicine-pouring port (3), liquid drainage tube (4), inner sleeve (5), it is characterized in that: described nipple (1) bottom welding draw-in groove pullover (2), described draw-in groove pullover (2) bottom welding inner sleeve (5), described screw thread medicine-pouring port (3) is vertically welded on nipple (1), liquid drainage tube (4) vertical welding of described screw thread medicine-pouring port (3) and inner sleeve (5) the inside, described inner sleeve (5) lower end is welded with fluid stopping plate (6).
2. overflow-proof formula ternary well mouth of oil well according to claim 1, with scale preventative device, is characterized in that: the diameter of described inner sleeve (5) is less than draw-in groove pullover (2) the inside draw-in groove inward flange diameter.
3. overflow-proof formula ternary well mouth of oil well according to claim 1, with scale preventative device, is characterized in that: the length of described liquid drainage tube (4) is less than the length of inner sleeve (5), and liquid drainage tube (4) is in fluid stopping plate (6) interior surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029509.4U CN203640706U (en) | 2014-01-17 | 2014-01-17 | Wellhead antiscale adding device of return-overflow-preventing ternary well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029509.4U CN203640706U (en) | 2014-01-17 | 2014-01-17 | Wellhead antiscale adding device of return-overflow-preventing ternary well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640706U true CN203640706U (en) | 2014-06-11 |
Family
ID=50871961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420029509.4U Expired - Fee Related CN203640706U (en) | 2014-01-17 | 2014-01-17 | Wellhead antiscale adding device of return-overflow-preventing ternary well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640706U (en) |
-
2014
- 2014-01-17 CN CN201420029509.4U patent/CN203640706U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |