CN205422618U - Sealed oil pipe cable annular blowout preventer - Google Patents
Sealed oil pipe cable annular blowout preventer Download PDFInfo
- Publication number
- CN205422618U CN205422618U CN201620230235.4U CN201620230235U CN205422618U CN 205422618 U CN205422618 U CN 205422618U CN 201620230235 U CN201620230235 U CN 201620230235U CN 205422618 U CN205422618 U CN 205422618U
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- brace rod
- oil pipe
- pipe cable
- oil
- ring
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Abstract
The utility model relates to a sealed oil pipe cable annular blowout preventer, its including top cap, casing of constituteing spherical space, install in in the spherical space under a lock ring, glue the core and install the piston in a lock ring at last loop type, the loop type is glued the core and is included the rubber body and brace rod two parts, and the brace rod includes brace rod body and brace rod extension arm, brace rod body rigid coupling in the top land, the internal wall cloth of rubber has wave -shaped wrinkles. The utility model is used for among the electric pumping well, realize the sealed of oil pipe cable.
Description
Technical field
This utility model relates to technical field of petroleum machinery, a kind of sealing oil pipe cable annular preventer for electric pump well.
Background technology
China oil field substantially belongs to low pressure, stripper field, oil development initial stage to mid-term, when producing in oil field, is both needed to displacement of reservoir oil by filling water.Make oil produce certain pressure, flow near oil well.Ground is extracted out again with various forms of oil well pumps even oil band water, then oil-water separation.Because oil pumping machine oil pumping is too slow, when the liquid water content extracted out is the biggest, the content of oil is the most very little.Thus just use submersible electric pump, explosion-proof specific type of electric machine and centrifugal multistage pump multiple centrifugal pump are connected together, under to bottom oil well.Owing to centrifugal pump discharge capacity is big, big quantity of fluid can be discharged within the same time.Although it is more to discharge the water yield, in the unit interval, the quantity of oil is consequently increased.This just can improve oil well output.
Oilfields also major part oil-immersed pump mode is recovered the oil.But this oil production method must have a few km cables to remove with motor one to be caused at ground power supply on shaft bottom, and oil pipe to be attached to.And at every oil pipe middle part, joint area, with Special clip, flat cable and oil pipe clamp are tied together.
The well Operating Pressure to be carried out of this structure, than common gas well, water injection well, oil well Operating Pressure difficulty many.During because common gas well, water injection well, oil well are sealed, as long as sealing oil pipe and the annular space of sleeve pipe, so that it may above carry oil pipe.And in electric pump well, the outside of the oil pipe in well has cable and the strain relief clamp of a wide 40mm, thick 10mm to propose with oil pipe.Thus require that preventer have to seal up oil pipe and cable simultaneously, and put and can not produce relative motion between fluid sealant part and oil pipe and the cable of preventer.Otherwise cable outer around steel band fluid sealant part can be scratched, lose sealing effectiveness.Preventer of the prior art is all unable to reach this sealing effectiveness.
Utility model content
The purpose of this utility model is just to provide a kind of sealing oil pipe cable annular preventer, for the sealing oil pipe cable annular preventer of electric pump well.
This utility model is achieved in that
Seal oil pipe cable annular preventer, including the composition top cover of diameter of Spherical Volume, housing, be installed in described diameter of Spherical Volume under bracing ring, at upper ring-like glue core and the piston that is installed in bracing ring；Described ring-like glue core includes rubber bodies and brace rod two parts, and brace rod includes brace rod body and brace rod extension arm；Described brace rod body is fixed in described top land；Described rubber bodies internal face is furnished with undulating pleats.
This utility model uses this structure, and brace rod extension arm plays lengthening moment, the effect of guiding, forces whole glue core to tighten up to centre when moving upward, makes the rubber being positioned at glue in-core side tighten up and embrace oil pipe and cable.Rubber is furnished with the inwall of undulating pleats and forms sealing in extruding embeds the oil pipe gap with cable, thus realizes the sealing to oil pipe cable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, seal oil pipe cable annular preventer housing parts by upper top cover 1 with under housing 5 form, the inner chamber of top cover 1 is spherical, ring-like glue core 2 it is provided with in the spherical inner chamber of top cover 1, this ring-like glue core 2 includes rubber bodies 7 and brace rod two parts, and brace rod includes brace rod body 6 and brace rod extension arm 8；Described rubber bodies internal face is furnished with undulating pleats 9.Bracing ring 3 and the piston 4 being installed in bracing ring 3 it is further fixed in inner walls.It is positioned at the brace rod body 6 outside rubber bodies 7 and is fixed in piston 4 top.
Work process of the present utility model: when being tied with the oil pipe of cable by the rubber bodies of this annular preventer, utilize top piston 4 on hydraulic pressure, promote ring-like glue core 2 to move upward.Simultaneously the most affixed with piston 4 it be positioned at the brace rod body 6 outside ring-like glue core 2 and paste top cover 1 inside ball face and move upward, in motor process, extruded by the center of being forced to by the brace rod 6 of extrusion, the rubber deformation causing rubber bodies extrudes to center, and rubber bodies inwall is furnished with undulating pleats, when being expressed to a certain degree, fold jut is just squeezed in the gap of oil pipe and cable, and form sealing state, well cylinder pressure is insulated.Act as lengthening moment, the guiding etc. of brace rod extension arm act on, when glue core entirety moves up, top cover inner chamber limits the direction of motion of brace rod, forces brace rod to intermediary movements, brace rod extruding rubber is to middle shrinkage, so that rubber holds oil pipe and cable tightly.
Claims (1)
1. seal oil pipe cable annular preventer, it is characterised in that this preventer include forming the top cover of diameter of Spherical Volume, housing, be installed in described diameter of Spherical Volume under bracing ring, at upper ring-like glue core and the piston that is installed in bracing ring；Described ring-like glue core includes rubber bodies and brace rod two parts, and brace rod includes brace rod body and brace rod extension arm；Described brace rod body is fixed in described top land；Described rubber bodies internal face is furnished with undulating pleats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230235.4U CN205422618U (en) | 2016-03-24 | 2016-03-24 | Sealed oil pipe cable annular blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230235.4U CN205422618U (en) | 2016-03-24 | 2016-03-24 | Sealed oil pipe cable annular blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422618U true CN205422618U (en) | 2016-08-03 |
Family
ID=56548986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620230235.4U Active CN205422618U (en) | 2016-03-24 | 2016-03-24 | Sealed oil pipe cable annular blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205422618U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552652A (en) * | 2019-08-05 | 2019-12-10 | 大庆市普庆密封材料配件有限公司 | carbon silica gel self-sealing core for well drilling |
| CN110939401A (en) * | 2020-01-02 | 2020-03-31 | 河北新铁虎石油机械有限公司 | Quincunx plate type pressure control device |
| CN115898319A (en) * | 2023-02-24 | 2023-04-04 | 四川新为橡塑有限公司 | Compound annular preventer of two rubber cores |
-
2016
- 2016-03-24 CN CN201620230235.4U patent/CN205422618U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552652A (en) * | 2019-08-05 | 2019-12-10 | 大庆市普庆密封材料配件有限公司 | carbon silica gel self-sealing core for well drilling |
| CN110939401A (en) * | 2020-01-02 | 2020-03-31 | 河北新铁虎石油机械有限公司 | Quincunx plate type pressure control device |
| CN115898319A (en) * | 2023-02-24 | 2023-04-04 | 四川新为橡塑有限公司 | Compound annular preventer of two rubber cores |
| CN115898319B (en) * | 2023-02-24 | 2023-05-09 | 四川新为橡塑有限公司 | Double-rubber-core composite annular blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |