CN201874806U - Plunger used in steam assisted gravity drainage (SAGD) high temperature large pump - Google Patents
Plunger used in steam assisted gravity drainage (SAGD) high temperature large pump Download PDFInfo
- Publication number
- CN201874806U CN201874806U CN2010206503482U CN201020650348U CN201874806U CN 201874806 U CN201874806 U CN 201874806U CN 2010206503482 U CN2010206503482 U CN 2010206503482U CN 201020650348 U CN201020650348 U CN 201020650348U CN 201874806 U CN201874806 U CN 201874806U
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- plunger
- sagd
- high temperature
- utility
- pump
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Abstract
The utility model discloses a plunger used in a steam assisted gravity drainage (SAGD) high temperature large pump, belonging to the field of oil exploitation. The plunger comprises an upper delivery connector, a plunger body, a lower traveling valve cover and a lower traveling valve seat which are sequentially connected with one another from top to bottom, wherein the outer diameters of all parts of the whole plunger are equal, and acute angles are formed at two ends of the plunger body. For the plunger, the axial dimension of the plunger is effectively reduced, the manufacturing cost of an oil well pump is reduced, working procedures are simplified, sand prevention performance is improved, and the lifting of an SAGD high temperature oil well with large delivery volume is better realized, so as to provide reliable technical support for development of thick oil such as SAGD, and assistance in forming a set of high-efficiency high-yield oil extraction technology.
Description
Technical field
The utility model relates to field of petroleum exploitation, particularly a kind of plunger that is used for SAGD (Steam-AssistedGravity Drainage develops super viscous crude technology) the big pump of high temperature.
Background technique
Plunger is a down-hole lifting implement accessory, is mainly used in rod pump lifting in the petroleum production, and performance index need satisfy oil well lifting demand.In field operation when construction,, plunger, fulfils assignment with the oil well pump G.I.H as the part of oil well pump assembly.
The big pump of SAGD high temperature belongs to non-NBS oil well pump, the dimension series of the plunger that matches with it is 108,120,140mm, this plunger form is a conventionally form, it comprises plunger body, undergauge is left at the two ends of plunger body, undergauge is the non-tight section, and the size of diameter shrinkage part is less than the diameter of plunger body (seal section), and the upper/lower terminal of plunger body is provided with the valve ball chamber of moving about.Wherein, seal section length is 1200mm, and the non-tight segment length is 100mm, the valve ball chamber length of moving about at two ends up and down in addition, and the total length of prior art plunger is 1800mm.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
Because the big pump plunger length of SAGD high temperature (1800mm) of prior art is longer, in order to cooperate connecting-and-unconnecting device must on the pump barrel of the big pump of SAGD high temperature, adopt extension nipple or lengthening pump barrel length, pump housing external diameter is excessive to making, and need switch well head during operation, causes the loaded down with trivial details or cost of program sharply to rise.
The model utility content
For the plungers length that overcomes the big pump of SAGD high temperature in the prior art how long, cause switching the problem that the program that exists in the well head is loaded down with trivial details or cost rises, the utility model embodiment provides the plunger of the big pump of a kind of SAGD of being used for high temperature.Described technological scheme is as follows:
A kind of plunger that is used for the big pump of SAGD high temperature comprises the last delivery connection, plunger body, lower travelling valve cover and the lower travelling valve seat that connect in turn from top to bottom, and the external diameter of the whole each several part of described plunger equates, forms isometrical plunger.
Further, for described plunger the is played effect of strike-ofing, the two ends of described plunger are provided with acute angle.
The beneficial effect of the technological scheme that the utility model embodiment provides is: compared to existing technology, the utility model is with the whole structure that adopts isometrical plunger of plunger, cancelled the undergauge that is positioned at the plunger body two ends in the prior art, and will be arranged in prior art and be located at the valve ball chamber of moving about at plunger body two ends and be located at plunger body inside, the plunger total length reduces to 1200mm by 1800mm, therefore the utility model has effectively shortened the total length of the big pump of SAGD high temperature, simplify the work procedure of the big pump of SAGD high temperature, and reduced the big pump manufacture cost of SAGD high temperature.
In addition, the utility model is designed to acute angle with the plunger two ends, can play the effect of strike-ofing, and avoids the generation of sand card phenomenon, makes the anti-sand card performance of the big pump plunger of SAGD high temperature that obvious enhancing arranged.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment's technological scheme, to do one to the accompanying drawing that uses among the embodiment below introduces simply, apparently, below listed accompanying drawing only be embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the plunger that is used for the big pump of SAGD high temperature that provides of the utility model embodiment.
In the accompanying drawing, the component list of each label representative is as follows:
Delivery connection on 1,2 plunger body, 3 lower travelling valve covers, 4 lower travelling valve seats, 5 acute angles.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, the utility model mode of execution is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the plunger that is used for the big pump of SAGD high temperature described in the utility model, comprise the last delivery connection 1, plunger body 2, lower travelling valve cover 3 and the lower travelling valve seat 4 that connect in turn from top to bottom, the external diameter of the whole each several part of described plunger equates, and forms isometrical plunger.Wherein, the valve ball chamber (not shown) of moving about is located at plunger body 2 inside.
Compared to existing technology, the isodiametric structure of the whole employing of plunger of the present utility model, cancelled the undergauge that is positioned at the plunger body two ends in the prior art, and will be arranged in prior art and be located at the valve ball chamber of moving about at plunger body two ends and be located at plunger body 2 inside, the plunger total length is by 1200mm that 1800mm reduces to, therefore the utility model has effectively shortened the total length of the big pump of SAGD high temperature, has simplified the work procedure of the big pump of SAGD high temperature, and has reduced the big pump manufacture cost of SAGD high temperature.
In realizing process of the present utility model, the inventor finds that plunger of the prior art does not possess the sand control function, causes sand card phenomenon easily.
In order to address the above problem, the utility model is designed to acute angle 5 with described plunger two ends, promptly acute angle 5 is set respectively in the end of last delivery connection 1 and lower travelling valve joint 4, therefore plunger described in the utility model can play the effect of strike-ofing, avoid the generation of sand card phenomenon, make the anti-sand card performance of the big pump plunger of SAGD high temperature that obvious enhancing arranged.
In sum, plunger described in the utility model, effectively dwindled the plunger axial dimension, reduce the oil well pump manufacture cost, simplify work procedure, improve sand control capability, better realize the lifting of the big discharge capacity oil well of SAGD high temperature, for heavy oil developments such as SAGD provide the reliable technique support, a cover is efficient in order to form, high yield oil production technology offer help.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. a plunger that is used for the big pump of SAGD high temperature is characterized in that, described plunger comprises last delivery connection, plunger body, lower travelling valve cover and the lower travelling valve seat that connects in turn from top to bottom, and the external diameter of the whole each several part of described plunger equates.
2. plunger as claimed in claim 1 is characterized in that the two ends of described plunger are provided with acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206503482U CN201874806U (en) | 2010-12-03 | 2010-12-03 | Plunger used in steam assisted gravity drainage (SAGD) high temperature large pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206503482U CN201874806U (en) | 2010-12-03 | 2010-12-03 | Plunger used in steam assisted gravity drainage (SAGD) high temperature large pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874806U true CN201874806U (en) | 2011-06-22 |
Family
ID=44162724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206503482U Expired - Lifetime CN201874806U (en) | 2010-12-03 | 2010-12-03 | Plunger used in steam assisted gravity drainage (SAGD) high temperature large pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874806U (en) |
-
2010
- 2010-12-03 CN CN2010206503482U patent/CN201874806U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |