CN201620854U - Double-element split type plunger gas lift tool - Google Patents
Double-element split type plunger gas lift tool Download PDFInfo
- Publication number
- CN201620854U CN201620854U CN2010201230050U CN201020123005U CN201620854U CN 201620854 U CN201620854 U CN 201620854U CN 2010201230050 U CN2010201230050 U CN 2010201230050U CN 201020123005 U CN201020123005 U CN 201020123005U CN 201620854 U CN201620854 U CN 201620854U
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- Prior art keywords
- plunger body
- push rod
- diameter
- plunger
- gas
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- RLLPVAHGXHCWKJ-UHFFFAOYSA-N permethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229940074869 marquis Drugs 0.000 description 1
- VBUNOIXRZNJNAD-UHFFFAOYSA-N ponazuril Chemical compound CC1=CC(N2C(N(C)C(=O)NC2=O)=O)=CC=C1OC1=CC=C(S(=O)(=O)C(F)(F)F)C=C1 VBUNOIXRZNJNAD-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A double-element split plunger gas lift tool is applied to the technical field of oil field oil extraction and is a special downhole tool for gas lift oil extraction. The push rod is cylindrical, the upper end of the push rod is provided with threads, the outer diameter of the plunger body is the same as the diameter of the underground oil pipe, the plunger body is cylindrical, the plunger body is provided with a central hole, the diameter of the central hole is 1-25 mm larger than the outer diameter of the push rod, and the lower end of the central hole of the plunger body is provided with a conical opening to form a valve seat of the ball valve; the diameter of the steel ball is 2-30 mm larger than the diameter of the central hole of the plunger body. The effect is as follows: the stable normal gas lift production of the well can be maintained, the gas jacket communication of a target layer is realized, and the fluid at the bottom of the well is lifted out of the well head. The lifting mode of the double-element split plunger gas-lift tool can eliminate liquid phase slippage loss, obviously reduce bottom hole flowing pressure, increase production pressure difference of an oil-gas layer and increase the yield of the original low-yield well.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, particularly a kind of down-hole special tool of gas-lift production.It is the down-hole special tool of the split type plunger lifting of a kind of dual-element.
Background technology
There are large quantities of high gas-liquid ratio gas wells in China, in recovery process, and can very fast reduction shaft bottom reservoir pressure after the mine gas ejection.After the pressure reduction can not realize blowing, must use mechanical oil pumping mode instead and recover the oil.At present, do not prolong the gas-lift production instrument and the exploitation method of shaft bottom reservoir pressure.
The utility model content
The purpose of this utility model is: provide a kind of dual-element split type plunger lift instrument, utilize the pressure of stratum generation or have ground to inject certain pressure the water in shaft bottom is enumerated well head, realize the air-casing communication of target zone, realize the intermittent mode gas-lift production, and can prolong the shaft bottom reservoir pressure.
The technical solution adopted in the utility model is: the split type plunger lift instrument of dual-element, mainly form by push rod, plunger body and steel ball, and it is characterized in that: push rod is the cylinder bodily form, and there is screw thread the upper end of push rod, can pounce on well head and catch the device lower end and be connected.The external diameter of plunger body is identical with the down-hole oil tube diameter, and plunger body can reciprocatingly slide in down-hole oil tube.Plunger body is the cylinder bodily form, and plunger body has centre bore, and the diameter of centre bore is greater than 1～25 millimeter of the external diameter of push rod, and the lower end of plunger body centre bore is a bell, forms the valve seat of ball valve.The diameter of steel ball is greater than 2～30 millimeters of plunger body center-hole diameters.
For friction that reduces plunger body outer wall and tube inner wall and the weight that alleviates plunger body, on the outer wall of described plunger body annular groove is arranged.
For push rod is withstood on the surface of steel ball, the bottom of described push rod is conical, and an arc-shaped concave is arranged at conical top.
The principle and the operating process of the split type plunger lift instrument of dual-element: consult Fig. 1.Push rod 1 upper end and well mouth of oil well pounced on catch device 4 lower ends and be threaded.Drop into steel ball 3 from the oil pipe upper end, heavy 10～30 minutes of marquis then, drops into plunger body 2 from the oil pipe upper end.Steel ball 3 and plunger body 2 successively arrive the oil pipe bottom.Plunger body 2 lower end seats are enclosed in steel ball 3 tops.The pressure that the down-hole produces is stopped that by steel ball 3 and plunger body 2 pressure progressively raises, and promotes steel ball 3 and plunger body 2 and moves upward.Steel ball 3 and plunger body 2 move to well mouth of oil well always, and push rod 1 one is connected well head and pounces on the lower end of catching device 4.Push rod 1 lower end withstands on the steel ball 3, opens the sealing between steel ball 3 and the plunger body 2.Steel ball 3 falls under action of gravity; Plunger body 2 falls thereupon.After plunger body 2 lower end seats are enclosed in steel ball 3 tops, have begun the next round lifting again and recovered the oil.Its principle is that plunger forms solid interface between gas and liquid, reduces gas channelling and liquid and falls after rise, thereby improve lifting efficiency.This instrument is to be used for down-hole pressure to use when 2～10MPa.
The beneficial effects of the utility model: the split type plunger lift instrument of the utility model dual-element provides a kind of energy-efficient lifting method.Adopt the split type plunger lift instrument of dual-element, only need spend less investment the gas well hoisting system is carried out local flow improvement, realize that the air-casing of target zone is linked up, can keep the stable ordinary production of these wells, the fluid in shaft bottom is enumerated well head.The split type plunger lift instrument of dual-element artificial lifting way can be eliminated liquid phase slippage loss, significantly reduces flowing bottomhole pressure (FBHP), increases the producing pressure differential of oil-gas Layer, makes former stripper well volume increase.
Description of drawings
Fig. 1 is the split type plunger lift tool construction of a utility model dual-element generalized section.
Among the figure, 1. push rod, 2. plunger body, 3. steel ball, 4. well head is pounced on and is caught device.
The specific embodiment
Embodiment 1: be example with a split type plunger lift instrument of dual-element that uses in internal diameter is 50.67 millimeters oil pipe, the utility model is described in further detail.
Consult Fig. 1.The split type plunger lift instrument of the utility model dual-element mainly is made up of push rod 1, plunger body 2 and steel ball 3.
The external diameter of plunger body 2 is identical with the down-hole oil tube diameter, and plunger body 2 can reciprocatingly slide in down-hole oil tube.Plunger body 2 is the cylinder bodily form, 380 millimeters of length.Plunger body 2 has centre bore, 28 millimeters of the diameters of centre bore, and the lower end of plunger body 2 centre bores is a bell, forms the valve seat of ball valve.Be evenly distributed with annular groove on the outer wall of plunger body 2.
The diameter of steel ball 3 is 32 millimeters.
Claims (3)
1. split type plunger lift instrument of dual-element, mainly form by push rod (1), plunger body (2) and steel ball (3), it is characterized in that: push rod (1) is the cylinder bodily form, there is screw thread the upper end of push rod (1), and the external diameter of plunger body (2) is identical with the down-hole oil tube diameter, and plunger body (2) is the cylinder bodily form, plunger body (2) has centre bore, the diameter of centre bore is greater than 1～25 millimeter of the external diameter of push rod (1), and the lower end of plunger body (2) centre bore is a bell, forms the valve seat of ball valve; The diameter of steel ball (3) is greater than 2～30 millimeters of plunger body (2) center-hole diameters.
2. the split type plunger lift instrument of dual-element according to claim 1 is characterized in that: be evenly distributed with annular groove on the outer wall of described plunger body (2).
3. the split type plunger lift instrument of dual-element according to claim 1 is characterized in that: there is an arc-shaped concave bottom of described push rod (1) for conical at conical top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201230050U CN201620854U (en) | 2010-03-03 | 2010-03-03 | Double-element split type plunger gas lift tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201230050U CN201620854U (en) | 2010-03-03 | 2010-03-03 | Double-element split type plunger gas lift tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620854U true CN201620854U (en) | 2010-11-03 |
Family
ID=43024310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201230050U Expired - Lifetime CN201620854U (en) | 2010-03-03 | 2010-03-03 | Double-element split type plunger gas lift tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620854U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133340A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN105201817A (en) * | 2015-10-15 | 2015-12-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Split type plunger without base and liquid drainage gas recovery process |
| CN104358546B (en) * | 2014-11-12 | 2017-02-15 | 中国石油天然气股份有限公司 | Underground movable automatic intermittent water lifting tool |
| CN106481320A (en) * | 2016-12-09 | 2017-03-08 | 东北石油大学 | One kind can realize gas well responding curve of well quantity-produced plunger gas producing device |
| CN108019189A (en) * | 2016-11-03 | 2018-05-11 | 中国石油天然气股份有限公司 | Reducing plunger |
-
2010
- 2010-03-03 CN CN2010201230050U patent/CN201620854U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133340A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN103133340B (en) * | 2011-11-25 | 2015-09-23 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN104358546B (en) * | 2014-11-12 | 2017-02-15 | 中国石油天然气股份有限公司 | Underground movable automatic intermittent water lifting tool |
| CN105201817A (en) * | 2015-10-15 | 2015-12-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Split type plunger without base and liquid drainage gas recovery process |
| CN108019189A (en) * | 2016-11-03 | 2018-05-11 | 中国石油天然气股份有限公司 | Reducing plunger |
| CN108019189B (en) * | 2016-11-03 | 2019-11-12 | 中国石油天然气股份有限公司 | Reducing plunger |
| CN106481320A (en) * | 2016-12-09 | 2017-03-08 | 东北石油大学 | One kind can realize gas well responding curve of well quantity-produced plunger gas producing device |
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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: 20101103 |