CN102562544B - High-temperature oil well pump - Google Patents
High-temperature oil well pump Download PDFInfo
- Publication number
- CN102562544B CN102562544B CN201010624206.3A CN201010624206A CN102562544B CN 102562544 B CN102562544 B CN 102562544B CN 201010624206 A CN201010624206 A CN 201010624206A CN 102562544 B CN102562544 B CN 102562544B
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- China
- Prior art keywords
- pump barrel
- metal plunger
- described metal
- diameter
- plunger
- Prior art date
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- 239000003129 oil well Substances 0.000 title abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 53
- 239000002184 metal Substances 0.000 claims abstract description 53
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 abstract 3
- 241000345822 Cylindera <genus> Species 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 20
- 239000003921 oil Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000003032 molecular docking Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a high-temperature oil well pump, which comprises a pump cylinder, a disconnecting device and a metal, wherein the disconnecting device and the metal are arranged in the pump cylinderA plunger and a traveling valve; the metal plunger comprises an upper oil outlet joint, a plunger body and a traveling valve which are sequentially connected in series and fixedly connected; the disconnecting device comprises a disconnecting claw, a lower joint and a guide pipe, wherein the lower joint and the guide pipe are fixed at two ends of the disconnecting claw; the guide sleeve is in clearance fit with the pump barrel, the end part of the guide sleeve is provided with a centralizing guide angle for ensuring that the disconnecting claw smoothly enters the lower part of the disconnecting device, and the inner diameter of the pump barrel is as follows: phi is more than 95mm and less than or equal to 160mm, and the theoretical discharge capacity is 1 stroke time and 105.5-177.2 m3D; the oil well pump has large theoretical discharge capacity, can quickly and accurately realize the butt joint of the sucker rod and the plunger, and has the characteristics of low processing cost and high operability.
Description
Technical field
The invention belongs to field of petroleum exploitation, more particularly, relate to a kind of down-hole lifting implement one high-temperature oil pump, be mainly used in SAGD oil well lifting in petroleum production, outside oil well pump NBS, develop high temperature resistant, that discharge capacity is large rod pump, realize the lifting of SAGD high temperature barreler, meet the lifting technology technical requirements of SAGD well.
Background technique
Along with the technology such as SAGD, horizontal well, steam flooding are in oil field fast development, in oil field, high temperature barreler presents the trend sharply increased, day by day urgent for the correlation technique demand that can realize high temperature huge discharge lifting technology.For SAGD technology, its success or failure depend primarily on the requirement that can oil well hoisting system meet throughput.
At present, the SAGD trial zone the highest daily production capacity of individual well is up to 300m
3/ d, nearly 240 DEG C of oil well bottom hole temperature (BHT).Owing to there is the complex working conditions such as high temperature, huge discharge, flash distillation, conventional equipment and process engineering ability cannot realize the lifting of SAGD oil well, adopt during the conventional rod pump exploitation under standard pump footpath (GB/T18607-2008) and cannot production requirement be met, GB/T18607-2008 oil well pump NBS dimensional range is φ 27mm ~ φ 95mm, and existing φ 95mm oil well pump Theoretical flowing capacity 1 jig frequency is only 81.6m
3/ d, cannot meet the exploitation needs of SAGD oil well, and for a long time, SAGD high temperature large discharge pump and its supporting technology depend on import always, and cost of production can be in any more.Therefore, being necessary to tackle key problems to SAGD oil well Lifting Technique, by developing SAGD high temperature huge discharge Lifting Technique, reducing SAGD cost of winning, for the large-scale application of oil field SAGD technology from now on lays the foundation.
In addition, existing high-temperature oil pump is in exploitation butt-joint operation or the docking after overhauling pumping well, and it is lower that it is butted into power, when particularly oil well pump is in the angled posi-tion of well, need many-sided adjustment uncoupling pawl could dock successfully behind the position of pump barrel, operability is poor.
Summary of the invention
The object of this invention is to provide a kind of high-temperature oil pump, its diameter is between 95-160mm, the Theoretical flowing capacity of pump is large, quick and precisely can realize the docking of sucker rod with plunger, and processing cost is low, the huge discharge exploitation of SAGD oil well can be met, for the heavy oil developments such as SAGD provide reliable technical support, and form the oil production technology of a set of efficient, high yield.
The invention provides a kind of major diameter high temperature large discharge oil well pump, described technological scheme is as follows:
A kind of high-temperature oil pump, comprises pump barrel and is placed in connecting-and-unconnecting device, metal plunger and the traveling valve in described pump barrel;
Described metal plunger comprises upper delivery connection, plunger body and the traveling valve of connecting successively and being fixedly connected with;
Described connecting-and-unconnecting device comprises uncoupling pawl and is fixed on lower contact and the guide tube at connecting-and-unconnecting device two ends, and described lower contact is threaded with described upper delivery connection, it is characterized in that:
Described connecting-and-unconnecting device also comprises guiding cover, and the bottom of described guiding cover is fixedly connected with by screw thread with the top of described guide tube; Described guiding cover is with described pump barrel Spielpassung, and its end is provided with righting lead angle, when described uncoupling pawl is with sucker rod G.I.H, under the righting lead angle effect of guiding cover, makes described uncoupling pawl enter connecting-and-unconnecting device bottom smoothly;
Described pump barrel internal diameter is: 95mm < φ≤150mm, its Theoretical flowing capacity 1 jig frequency 105.5 ~ 177.2m
3/ d.
The end of described uncoupling pawl is provided with shearing force release undergauge, and the stress alleviating uncoupling pawl top when throwing off for connecting-and-unconnecting device is concentrated.
The outer peripheral surface of described metal plunger has identical external diameter, and the top and bottom of described plunger body are respectively equipped with internal thread, and the bottom of described upper delivery connection and the top of traveling valve are threaded connection with the top and bottom of described plunger body respectively.
Described upper delivery connection and the end of traveling valve are respectively provided with the acute angle for strike-ofing.
Described pump barrel is 45 steel matter, and described pump barrel with the matching gap scope of metal plunger is: θ ~ (θ+0.063) mm;
Wherein θ is the negative bias difference of metal plunger diameter.
The diameter of described pump barrel is φ 108mm, under 10MPa pressure,
When the negative bias difference θ of described metal plunger diameter is 0.150mm, the maximum leakage value 12200ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.175mm, the maximum leakage value 17000ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.200mm, the maximum leakage value 22900ml/min of described metal plunger and pump barrel matching gap.
The diameter of described pump barrel is φ 120mm, under 10MPa pressure,
When the negative bias difference θ of described metal plunger diameter is 0.150mm, the maximum leakage value 13500ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.175mm, the maximum leakage value 18900ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.200mm, the maximum leakage value 25500ml/min of described metal plunger and pump barrel matching gap.
The diameter of described pump barrel is φ 140mm, under 10MPa pressure,
When the negative bias difference θ of described metal plunger diameter is 0.150mm, the maximum leakage value 15800ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.175mm, the maximum leakage value 22000ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.200mm, the maximum leakage value 29700ml/min of described metal plunger and pump barrel matching gap.
The beneficial effect of the technological scheme that the embodiment of the present invention provides is:
(1) the pump barrel diameter that the oil well pump of existing standard provides at present is less than 95mm, the Theoretical flowing capacity of its pump is little, existing oilfield exploitation ability can not be met, the pump barrel of the 95mm of being greater than provided by the present invention improves the day production fluid and producing capacity of oil well pump greatly, such as, during normal work, the nearly 300m of φ 120 high temperature huge discharge oil well pump the highest day production fluid
3/ d, φ 140mm oil well pump Theoretical flowing capacity 1 jig frequency 170m
3/ d, and existing φ 95mm oil well pump Theoretical flowing capacity 1 jig frequency is only 81.6m
3/ d, meets the requirement of SAGD oil well lifting liquid measure.
(2) the present invention also sets the wastage under each gap, and on-the-spot application display, the average pump efficiency of oil well pump of the present invention nearly 60%, can meet the needs of pumping completely.
(3) compared to existing technology, metal plunger entirety is adopted the structure of isometrical plunger by the present invention, and plunger body two ends of the prior art employing is undergauge structure, the present invention changes the position of travelling valve chamber, the position being located at the travelling valve chamber at plunger body two ends in prior art is changed, be arranged at the inside of plunger body, this makes the total length of whole metal plunger reduce to 1200mm by 1800mm, therefore the total length of the large pump of SAGD high temperature is effectively shortened, simplify the work procedure of the large pump of SAGD high temperature, and reduce the large pump manufacture cost of SAGD high temperature.
(4) metal plunger two ends are set to acute angle by the present invention, can play the effect of strike-ofing, and avoid the generation of sand card phenomenon, make the anti-sand card performance of the large pump plunger of SAGD high temperature have obvious enhancing.
(5) connecting-and-unconnecting device in the present invention is provided with guiding nested structure, during normal operation, uncoupling pawl is with sucker rod G.I.H, under the righting leading role of guiding cover, oil pumping pump can be ensured deeply under the prerequisite of any hole angle, enter connecting-and-unconnecting device bottom smoothly, complete docking, the scene of can ensureing is butted into power 100% 1 time, and prior art designs without this part-structure, cannot ensure that connecting-and-unconnecting device can once successfully dock.
(6) in the present invention for the problem of uncoupling pawl shear strength deficiency in actual application, be provided with in the lower end of uncoupling pawl shearing force release undergauge, can effectively avoid when connecting-and-unconnecting device is thrown off, uncoupling pawl top stress concentrate, uncoupling pawl damage.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is oil well pump structural representation of the present invention;
Fig. 2 is the structural representation of connecting-and-unconnecting device in Fig. 1;
Fig. 3 is the structural representation of uncoupling pawl in Fig. 2;
Fig. 4 is the structural representation of metal plunger in Fig. 1.
In figure:
1, releasing-joint 2, uncoupling pawl 3, connecting-and-unconnecting device lower body 4, lower contact 5, upper delivery connection 6, plunger body 7, pump barrel 8, traveling valve 9, standing valve 10, lower end connector 11, spring 12, pressure ring 13, core bar 14, guide tube 15, uncoupling pawl 16, guiding cover 17, acute angle 18, travelling valve bonnet 19, travelling valve seat 20, shearing force release undergauge 21, righting lead angle.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, the present invention is connected in sequence by releasing-joint 1, uncoupling pawl 2, connecting-and-unconnecting device lower body 3, lower contact 4, upper delivery connection 5, plunger body 6, pump barrel 7, traveling valve 8, standing valve 9 and lower end connector 10, wherein connecting-and-unconnecting device and traveling valve 8 are placed in the inside of pump barrel 7, standing valve 9 is connected to pump barrel 7 lower end after being threaded connection with lower end connector 10 is fixedly connected with, and releasing-joint 1 passes through with the upper end of pump barrel 7
It should be noted that: the above-mentioned setting only φ 108mm, φ 120mm, φ 140mm being carried out to gap and wastage, the pump barrel in other pump footpath also can draw corresponding maximum leakage value in conjunction with said method.
In addition, the manufacture method of pump barrel of the present invention is as follows:
Through essence dial-rolling and straightening-honing-chromium plating-honing polishing treatment obtain.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a high-temperature oil pump, comprises pump barrel and is placed in connecting-and-unconnecting device, metal plunger and the traveling valve in described pump barrel;
Described metal plunger comprises upper delivery connection, plunger body and the traveling valve of connecting successively and being fixedly connected with;
Described connecting-and-unconnecting device comprises uncoupling pawl and is fixed on lower contact and the guide tube at connecting-and-unconnecting device two ends, and described lower contact is threaded with described upper delivery connection, it is characterized in that:
Described connecting-and-unconnecting device also comprises guiding cover, and the bottom of described guiding cover is fixedly connected with by screw thread with the top of described guide tube; Described guiding cover is with described pump barrel Spielpassung, and its end is provided with righting lead angle, when described uncoupling pawl is with sucker rod G.I.H, under the righting lead angle effect of guiding cover, makes described uncoupling pawl enter connecting-and-unconnecting device bottom smoothly;
Described pump barrel internal diameter is: 95mm< φ≤160mm, its Theoretical flowing capacity 1 jig frequency 105.5 ~ 177.2m
3/ d;
Described high-temperature oil pump also comprises releasing-joint, and described releasing-joint is connected with the upper end of described pump barrel;
Described pump barrel is 45 steel matter, and described pump barrel with the matching gap scope of metal plunger is: θ ~ (θ+0.063) mm;
Wherein θ is the negative bias difference of metal plunger diameter;
The end of described uncoupling pawl is provided with shearing force release undergauge, and the stress alleviating uncoupling pawl top when throwing off for connecting-and-unconnecting device is concentrated.
2. high-temperature oil pump according to claim 1, is characterized in that:
The outer peripheral surface of described metal plunger has identical external diameter, and the top and bottom of described plunger body are respectively equipped with internal thread, and the bottom of described upper delivery connection and the top of traveling valve are threaded connection with the top and bottom of described plunger body respectively.
3. high-temperature oil pump according to claim 2, is characterized in that:
Described upper delivery connection and the end of traveling valve are respectively provided with the acute angle for strike-ofing.
4. high-temperature oil pump according to claim 3, is characterized in that:
The diameter of described pump barrel is φ 108mm, under 10MPa pressure,
When the negative bias difference θ of described metal plunger diameter is 0.150mm, the maximum leakage value 12200ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.175mm, the maximum leakage value 17000ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.200mm, the maximum leakage value 22900ml/min of described metal plunger and pump barrel matching gap.
5. high-temperature oil pump according to claim 3, is characterized in that:
The diameter of described pump barrel is φ 120mm, under 10MPa pressure,
When the negative bias difference θ of described metal plunger diameter is 0.150mm, the maximum leakage value 13500ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.175mm, the maximum leakage value 18900ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.200mm, the maximum leakage value 25500ml/min of described metal plunger and pump barrel matching gap.
6. high-temperature oil pump according to claim 3, is characterized in that:
The diameter of described pump barrel is φ 140mm, under 10MPa pressure,
When the negative bias difference θ of described metal plunger diameter is 0.150mm, the maximum leakage value 15800ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.175mm, the maximum leakage value 22000ml/min of described metal plunger and pump barrel matching gap;
When the negative bias difference θ of described metal plunger diameter is 0.200mm, the maximum leakage value 29700ml/min of described metal plunger and pump barrel matching gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010624206.3A CN102562544B (en) | 2010-12-31 | 2010-12-31 | High-temperature oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010624206.3A CN102562544B (en) | 2010-12-31 | 2010-12-31 | High-temperature oil well pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562544A CN102562544A (en) | 2012-07-11 |
| CN102562544B true CN102562544B (en) | 2015-09-09 |
Family
ID=46408862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010624206.3A Active CN102562544B (en) | 2010-12-31 | 2010-12-31 | High-temperature oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562544B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2084728C1 (en) * | 1995-02-23 | 1997-07-20 | Акционерное общество "ЭЛКАМ-нефтемаш" | Plunger of oil-well sucker-rod pump |
| US5924353A (en) * | 1995-12-15 | 1999-07-20 | Wang; De Qing | Durable oil well pump of fitting ceramics cylinder |
| CN2816410Y (en) * | 2005-08-26 | 2006-09-13 | 国营第三八八厂 | Double-valve equal-diameter strong corrosion-resisting efficient deep-pumping pump |
| CN101769248A (en) * | 2010-01-05 | 2010-07-07 | 于海涛 | Equant oil pump plunger assembly |
-
2010
- 2010-12-31 CN CN201010624206.3A patent/CN102562544B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2084728C1 (en) * | 1995-02-23 | 1997-07-20 | Акционерное общество "ЭЛКАМ-нефтемаш" | Plunger of oil-well sucker-rod pump |
| US5924353A (en) * | 1995-12-15 | 1999-07-20 | Wang; De Qing | Durable oil well pump of fitting ceramics cylinder |
| CN2816410Y (en) * | 2005-08-26 | 2006-09-13 | 国营第三八八厂 | Double-valve equal-diameter strong corrosion-resisting efficient deep-pumping pump |
| CN101769248A (en) * | 2010-01-05 | 2010-07-07 | 于海涛 | Equant oil pump plunger assembly |
Non-Patent Citations (1)
| Title |
|---|
| 李景波等."辽河油田SAGD超稠油井有杆泵举升技术".《石油地质与工程》.2008,第22卷(第6期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102562544A (en) | 2012-07-11 |
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