CN201568001U - Electric submersible pump sealing wellhead - Google Patents
Electric submersible pump sealing wellhead Download PDFInfo
- Publication number
- CN201568001U CN201568001U CN2009202782281U CN200920278228U CN201568001U CN 201568001 U CN201568001 U CN 201568001U CN 2009202782281 U CN2009202782281 U CN 2009202782281U CN 200920278228 U CN200920278228 U CN 200920278228U CN 201568001 U CN201568001 U CN 201568001U
- Authority
- CN
- China
- Prior art keywords
- cable outlet
- cable
- pressure cap
- caulking gum
- electric submersible
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000005086 pumping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The electric submersible pump is used for sealing a well head and preventing oil and gas leakage. An oil production pipeline interface is fixed on the upper part of the four-way joint of the production well casing; the production well casing four-way joint is characterized in that a cable outlet is arranged at the upper part of the production well casing four-way joint and beside the oil production pipeline interface, a cable outlet pipe is fixed at the upper part of the production well casing four-way joint and around the cable outlet, a sealing rubber cylinder is arranged in the cable outlet pipe, the sealing rubber cylinder is provided with a center hole, and the center hole of the sealing rubber cylinder is opposite to the cable outlet. The length of the sealing rubber cylinder is 5-50 mm greater than the height of the cable outlet pipe. The upper part of the outlet pipe of the cable is provided with a pressing cap. The top of the pressure cap is provided with a cable outlet, and the lower end of the pressure cap is provided with an internal thread. The effect is as follows: the wellhead can realize sealing of the cable outlet, and the sealing rubber can be replaced quickly without dismounting the connecting pipeline.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, particularly well mouth of oil well sealing, and when being a kind of employing electric submersible pumping, can the hermetically-sealed cable outlet, and can change the electric submersible pump sealing well head of seal fast.
Background technology
In opening oil extraction process, for solving in the conventional pumping unit oil recovery process problems such as side-abrasion of rod string.The part well adopts the electric submersible pump exploitation, overcomes oil pumper side-abrasion of rod string in oil recovery process.Electric submersible pumping system mainly is made up of ground numerical control device, down-hole submersible electric pump, private cable etc.In down-hole string, cable by strain relief clamp fixing with production tube on, be drawn out to ground by well head simultaneously, connect switch board.But in high oil-gas ratio well and high back pressure well, existing electric submersible pump well head in the cable seal part, exists sealing effectiveness bad, the problem of hydrocarbon seepage occurs.Simultaneously, need dismantle cable when changing seal, the replacing time is long, influences produced on-site.In high oil-gas ratio well and high back pressure well, use common electric immersible pump well mouth, produce and the cable outlet place just occurred in about 6～7 months and the oil impregnate phenomenon occurs.
The utility model content
The purpose of this utility model is: a kind of electric submersible pump sealing well head is provided, realizes well head and cable seal, and can realize changing fast seal.
The technical solution adopted in the utility model is: electric submersible pump sealing well head, mainly form by producing well four-way junction of casing, pipeline of oil production interface, cable outlet, caulking gum tube and pressure cap, and be fixed with the pipeline of oil production interface on the top of producing well four-way junction of casing;
It is characterized in that: cable outlet is arranged on the top of producing well four-way junction of casing and on pipeline of oil production interface next door, be fixed with the cable outlet on every side on the top of producing well four-way junction of casing and at cable outlet, the caulking gum tube is arranged in the cable outlet, the caulking gum tube has centre bore, and caulking gum tube centre bore is relative with cable outlet.The length of caulking gum tube is greater than 5～50 millimeters of the height of cable outlet.Pressure cap is arranged at the top at the cable outlet.The pressure cap upper top has cable outlet, and there is internal thread the pressure cap lower end.Pressure cap lower end internal thread cooperates with cable outlet upper external screw thread, screws pressure cap and makes caulking gum tube generation deformation, reaches sealing effectiveness.
In order to take the caulking gum tube on the cable to, the structure of described caulking gum tube is: a spiral opening is arranged on the wall of cylindrical drum, the spiral opening from the top of cylindrical drum until the bottom of cylindrical drum.Cable can now enter a cylindrical drum part from an end of spiral opening, rotational circle column casing then, and cable all enters in the cylindrical drum along the spiral opening.Opposite from the method for cable dismounting caulking gum tube with mounting method.Realization makes things convenient for Fast Installation, dismounting caulking gum tube.
The beneficial effects of the utility model: the utility model electric submersible pump sealing well head, can realize electric submersible pump well head cable seal, the infiltration of stopping the well head cable section, the potential safety hazard of elimination electric submersible pumping well.And be implemented in when changing seal, do not dismantle stube cable, make things convenient for Fast Installation, reduce influence producing.Use 6 mouthfuls of wells of this electric submersible pump sealing well head instead, produce 13 monthly leakage problems that do not occur so far, respond well.
Description of drawings
Fig. 1 is the utility model electric submersible pump sealed well mouth structure schematic diagram.
Among the figure, 1. producing well four-way junction of casing, 2. pipeline of oil production interface, 3. cable outlet, 4. caulking gum tube, 5. pressure cap.
The specific embodiment
Embodiment 1: with a kind of electric submersible pump sealing well head is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model electric submersible pump sealing well head, mainly form by producing well four-way junction of casing 1, pipeline of oil production interface 2, cable outlet 3, caulking gum tube 4 and pressure cap 5, be fixed with pipeline of oil production interface 2 on the top of producing well four-way junction of casing 1, extraction liquid enters pipeline of oil production by pipeline of oil production interface 2.
On the top of producing well four-way junction of casing 1 and on pipeline of oil production interface 2 next doors a cable outlet (hole) is arranged, be welded with a cable outlet 3 on every side on the top of producing well four-way junction of casing 1 and at cable outlet (hole), 80 millimeters of cable outlet 3 internal diameters.Caulking gum tube 4 is arranged in cable outlet 3, and caulking gum tube 4 has centre bore.79.5 millimeters of caulking gum tube 4 external diameters, center-hole diameter is bigger 0.5 millimeter than cable size.Caulking gum tube 4 centre bores are relative with cable outlet.The length of caulking gum tube 4 is greater than 25 millimeters of the height of cable outlet 3.
The structure of caulking gum tube 4 is: a spiral opening is arranged on the wall of cylindrical drum, the spiral opening from the top of cylindrical drum until the bottom of cylindrical drum.
A pressure cap 5 is arranged on the top of cable outlet 3.Pressure cap 5 upper tops have circular port-cable outlet, and there is internal thread pressure cap 5 lower ends.Pressure cap 5 lower end internal threads cooperate with cable outlet 3 upper external screw threads, and pressure cap 5 is tightened on the top of cable outlet 3, and pressure cap 5 compresses caulking gum tube 4, makes generation deformation, reaches the purpose of hermetically-sealed cable.
Claims (2)
1. an electric submersible pump sealing well head mainly is made up of producing well four-way junction of casing (1), pipeline of oil production interface (2), cable outlet (3), caulking gum tube (4) and pressure cap (5), is fixed with pipeline of oil production interface (2) on the top of producing well four-way junction of casing 1;
It is characterized in that: cable outlet is arranged on the top of producing well four-way junction of casing (1) and on pipeline of oil production interface (2) next door, be fixed with cable outlet (3) on every side on the top of producing well four-way junction of casing (1) and at cable outlet, caulking gum tube (4) is arranged in cable outlet (3), caulking gum tube (4) has centre bore, caulking gum tube (4) centre bore is relative with cable outlet, the length of caulking gum tube (4) is greater than 5～50 millimeters of the height of cable outlet (3), on the top of cable outlet (3) pressure cap (5) is arranged, pressure cap (5) upper top has cable outlet, there is internal thread pressure cap (5) lower end, and pressure cap (5) lower end internal thread cooperates with cable outlet (3) upper external screw thread.
2. electric submersible pump according to claim 1 sealing well head, it is characterized in that: the structure of described caulking gum tube (4) is: a spiral opening is arranged on the wall of cylindrical drum, the spiral opening from the top of cylindrical drum until the bottom of cylindrical drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782281U CN201568001U (en) | 2009-12-16 | 2009-12-16 | Electric submersible pump sealing wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782281U CN201568001U (en) | 2009-12-16 | 2009-12-16 | Electric submersible pump sealing wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568001U true CN201568001U (en) | 2010-09-01 |
Family
ID=42660288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202782281U Expired - Lifetime CN201568001U (en) | 2009-12-16 | 2009-12-16 | Electric submersible pump sealing wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397416A (en) * | 2019-08-27 | 2019-11-01 | 中油国际(尼日尔)公司 | A kind of electric pump well head anti-leak high pressure seal |
-
2009
- 2009-12-16 CN CN2009202782281U patent/CN201568001U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397416A (en) * | 2019-08-27 | 2019-11-01 | 中油国际(尼日尔)公司 | A kind of electric pump well head anti-leak high pressure seal |
| CN110397416B (en) * | 2019-08-27 | 2021-12-10 | 中油国际(尼日尔)公司 | Anti-leakage high-pressure sealing device for electric pump well mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: PetroChina Company Limited Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: PetroChina Company Limited |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |