CN105840560A - Continuous oil pipe liquid discharge pump - Google Patents
Continuous oil pipe liquid discharge pump Download PDFInfo
- Publication number
- CN105840560A CN105840560A CN201610343535.8A CN201610343535A CN105840560A CN 105840560 A CN105840560 A CN 105840560A CN 201610343535 A CN201610343535 A CN 201610343535A CN 105840560 A CN105840560 A CN 105840560A
- Authority
- CN
- China
- Prior art keywords
- pressure chamber
- low pressure
- low
- pressure cavity
- diameter
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/124—Adaptation of jet-pump systems
Abstract
The invention discloses a continuous oil pipe liquid discharge pump. The continuous oil pipe liquid discharge pump comprises a liquid discharge pump body; an inner-diameter-variable through hole is formed in the body; the through hole forms a high-pressure cavity for pumping power liquid, a throat pipe and a low-pressure cavity, wherein the high-pressure cavity is connected with the low-pressure cavity through the throat pipe; the diameter of the high-pressure cavity and the diameter of the low-pressure cavity are larger than the diameter of the throat pipe; the upper end of the body is an upper connector connected with the bottom of a continuous oil pipe and the high-pressure cavity; the lower end of the body is a lower connector connected with a packer and the low-pressure cavity; a screwed plug is connected with the low-pressure cavity through a screw thread and seals an outlet in the lower end of the low-pressure cavity; a liquid discharge hole communicating with the low-pressure cavity is formed in the side face of the lower end of the body and provided with a baffle which is in connection through a screw thread; and the position, in the lower section of the body, located nearby the low-pressure cavity is provided with a liquid inlet channel, and the liquid inlet channel communicates with a liquid suction hole through the low-pressure cavity. The continuous oil pipe liquid discharge pump is simple in structure, convenient to operate and low in cost and is a new tool for discharge and recovery operation.
Description
Technical field
The present invention relates to the downhole tool of a kind of oil-gas field development application, be especially connected to coiled tubing
Bottom, by ground infusion power fluid, carries out the coiled tubing positive displacement pump of mining use.
Background technology
At present the lifting technology of Oil/gas Well include rod pumping pump, electric pump, screw pump, hydraulic pump, gaslift,
The mode such as foams drain, pumping, for High water cut gas well, most use foams drain, but work as stratum
Aqueous high time effect undesirable, use gas lift liquid drainage costly, and it is high that stratum is produced back pressure, discharge opeing is imitated
The most undesirable, use other pumps to need kill-job to play flowline, there is duty cycle long, there is pollution on stratum
Shortcoming.
Summary of the invention
The technical problem to be solved is to provide a kind of coiled tubing positive displacement pump, arranges for gaslift
Liquid, it is impossible under enter the well low cost discharge opeing problem of the mode such as sucker rod pump, electric pump.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of coiled tubing row
Liquid pump, including positive displacement pump body, has, in body interior, the through hole that internal diameter changes, and through hole constitutes infusion and moves
The high pressure chest of power liquid, trunnion and low pressure chamber, connected by trunnion between high pressure chest and low pressure chamber, high pressure chest
With the diameter of low pressure chamber more than the diameter of trunnion, body upper end be the bottom with coiled tubing be connected on connect
Head and high pressure chest, lower end is the lower contact and low pressure chamber being connected with packer, and plug passes through screw thread and low pressure
Chamber connects and the outlet of lower end, sealing low pressure chamber, goes out liquid what the setting of body lower end side communicated with low pressure chamber
Hole, liquid outlet is provided with the baffle plate of screwed connection, at the lower intrasegmental part of body, is positioned at low pressure chamber
Side is provided with and the feed pathway communicated outside body lower end, and feed pathway and low pressure chamber pass through imbibing hole
Connection.
Described imbibing hole is positioned at trunnion and the position of low pressure chamber connection transition, and liquid outlet is bottom low pressure chamber
Near the position of lower contact, feed pathway is parallel with the central shaft of low pressure chamber, and its diameter is more than imbibing hole
Diameter.
Described baffle plate is degradable material.
Described baffle plate is magnalium, zinc magnesium alloy, copper magnesium alloy, polycaprolactone, polypropylene, gathers
One or more in lactic acid, polyglycolic acid and polythene material.
The invention has the beneficial effects as follows: simple in construction, easy to operate, it is the new tool of gas well discharge opeing.
Accompanying drawing explanation
Fig. 1 is the structural representation of coiled tubing positive displacement pump of the present invention.
Fig. 2 is the use state diagram of coiled tubing positive displacement pump of the present invention.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, the coiled tubing positive displacement pump of the present invention, including positive displacement pump body 10, at body
The 10 internal through holes having internal diameter to change, through hole constitutes the high pressure chest 2 of infusion power fluid, trunnion 3 and low
Pressure chamber 4, is connected by trunnion 3 between high pressure chest 2 and low pressure chamber 4, high pressure chest 2 and low pressure chamber 4
Diameter is more than the diameter of trunnion 3, and body upper end is the top connection 1 that is connected of the bottom with coiled tubing and height
Pressure chamber 2, lower end is the lower contact 6 and low pressure chamber 4 being connected with packer, and plug 9 passes through screw thread with low
Pressure chamber 4 connects and the outlet of lower end, sealing low pressure chamber 4, arranges and low pressure chamber in body 10 lower end side
The liquid outlet 5 that 4 communicate, liquid outlet 5 is provided with the baffle plate 11 of screwed connection, at body 10
Lower intrasegmental part, be positioned at the feed pathway 7 that low pressure chamber 4 side is provided with and communicates outside body lower end,
Feed pathway 7 is connected by imbibing hole 8 with low pressure chamber 4.
Described imbibing hole 8 is positioned at trunnion 3 and low pressure chamber 4 connects the position of transition, and liquid outlet 5 is low
Near the position of lower contact 6 bottom pressure chamber 4, feed pathway 7 is parallel with the central shaft of low pressure chamber 4, and
Its diameter is more than the diameter of imbibing hole 8.
Described baffle plate 11 is degradable material, for magnalium, zinc magnesium alloy, copper magnesium alloy, gathers
One or more in caprolactone, polypropylene, polylactic acid, polyglycolic acid and polythene material.
The coiled tubing positive displacement pump of the present invention, is connected to the bottom of coiled tubing by top connection during use,
After at the bottom of instrument lower going-into-well, baffle plate 11 is gradually degraded in the stratum liquid in shaft bottom so that liquid outlet 5 is smooth
Logical.Infusion power fluid in coiled tubing, when power fluid enters low pressure chamber from high pressure chest 2 through trunnion 3
When 4, can produce negative pressure at imbibing hole 8, the liquid on stratum will be along feed pathway 7 and imbibing hole
8 entrance low pressure chamber 4, and discharge through liquid outlet 5 after power fluid mixing.
Below the use process of the present invention is described in detail:
As in figure 2 it is shown, be connected to bottom coiled tubing 12 by the pump of the present invention, the bottom of pump connects envelope
Every device 13, utilizing coiled tubing 12 to be lowered into shaft bottom needs the position of discharge opeing, first sets packing before work
Device 13, utilizes packer 13 to insulate coiled tubing 12 and the annular space of sleeve pipe 14, and baffle plate 11 exists
The stratum liquid in shaft bottom is gradually degraded so that liquid outlet 5 is unimpeded.From ground, face-pumping passes through coiled tubing
12 inject power fluid, when power fluid enters low pressure chamber 4 from high pressure chest 2 through trunnion 3, can inhale
Producing negative pressure at fluid apertures 8, the liquid on stratum will enter low pressure chamber along feed pathway 7 and imbibing hole 8
It is discharged to coiled tubing 12 and the annular space of sleeve pipe 14 through liquid outlet 5 behind 4, and power fluid mixing,
Finally arrive ground, complete discharge opeing process.
By coiled tubing tail band positive displacement pump and packer, first set packer, then land used face-pumping is even
Inject liquid in continuous oil pipe, utilize the annular space liquid in shaft bottom being discharged to oil pipe and coiled tubing of pump,
Or sleeve pipe and the annular space of coiled tubing, then return together with power fluid and be discharged to ground.
In sum, present disclosure is not limited in the above embodiments, having in same area
The scholar of knowledge can propose other embodiment within technological guidance's thought of the present invention easily, but this
Within kind embodiment is included in the scope of the present invention.
Claims (4)
1. a coiled tubing positive displacement pump, it is characterised in that include positive displacement pump body (10), at this
The internal through hole having internal diameter to change of body (10), through hole constitutes the high pressure chest (2) of infusion power fluid, larynx
Pipe (3) and low pressure chamber (4), connected by trunnion (3) between high pressure chest (2) and low pressure chamber (4),
The diameter of high pressure chest (2) and low pressure chamber (4) is more than the diameter of trunnion (3), and body upper end is and connects
The top connection (1) of the bottom connection of continuous oil pipe and high pressure chest (2), under lower end is connected with packer
Joint (6) and low pressure chamber (4), plug (9) is connected with low pressure chamber (4) by screw thread and is sealed low
The outlet of pressure chamber (4) lower end, is arranged and going out that low pressure chamber (4) communicates in body (10) lower end side
Fluid apertures (5), liquid outlet (5) is provided with the baffle plate (11) of screwed connection, in body (10)
Lower intrasegmental part, be positioned at the feed pathway that low pressure chamber (4) side is provided with and communicates outside body lower end
(7), feed pathway (7) is connected by imbibing hole (8) with low pressure chamber (4).
Coiled tubing positive displacement pump the most according to claim 1, it is characterised in that described imbibing hole
(8) being positioned at trunnion (3) and the position of low pressure chamber (4) connection transition, liquid outlet (5) is in low pressure chamber
(4) bottom is near the central shaft of the position of lower contact (6), feed pathway (7) and low pressure chamber (4)
Parallel, and its diameter is more than the diameter of imbibing hole (8).
Coiled tubing positive displacement pump the most according to claim 1, it is characterised in that described baffle plate (11)
For degradable material.
Coiled tubing positive displacement pump the most according to claim 3, it is characterised in that described baffle plate (11)
For magnalium, zinc magnesium alloy, copper magnesium alloy, polycaprolactone, polypropylene, polylactic acid, polyglycolic acid
With one or more in polythene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343535.8A CN105840560B (en) | 2016-05-20 | 2016-05-20 | A kind of coiled tubing positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343535.8A CN105840560B (en) | 2016-05-20 | 2016-05-20 | A kind of coiled tubing positive displacement pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840560A true CN105840560A (en) | 2016-08-10 |
| CN105840560B CN105840560B (en) | 2017-11-17 |
Family
ID=56594073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343535.8A Active CN105840560B (en) | 2016-05-20 | 2016-05-20 | A kind of coiled tubing positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840560B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101909A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Water jet assisted oil recovery method for bottom of difficultly-used reservoir |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529000Y (en) * | 2002-03-01 | 2003-01-01 | 中国石油天然气股份有限公司 | Dredge-nut underground double-pipe hydraulic injection pump |
| CN201705301U (en) * | 2010-01-14 | 2011-01-12 | 韩克楚 | Deep well oil production outer runner positive and negative circulation free shot jet pump oil production device |
| CN201843599U (en) * | 2010-10-22 | 2011-05-25 | 中国石油化工股份有限公司 | Thermal lifting device for heavy oil in ultradeep layer |
| CN202531496U (en) * | 2012-03-01 | 2012-11-14 | 中国石油天然气股份有限公司 | Droppable and fishable gas injected injection pump for gas lift |
| US20150233221A1 (en) * | 2012-01-25 | 2015-08-20 | Tech Flo Consulting, Llc | Hydraulic Powered Downhole Pump |
| CN205689502U (en) * | 2016-05-20 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of coiled tubing positive displacement pump |
-
2016
- 2016-05-20 CN CN201610343535.8A patent/CN105840560B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529000Y (en) * | 2002-03-01 | 2003-01-01 | 中国石油天然气股份有限公司 | Dredge-nut underground double-pipe hydraulic injection pump |
| CN201705301U (en) * | 2010-01-14 | 2011-01-12 | 韩克楚 | Deep well oil production outer runner positive and negative circulation free shot jet pump oil production device |
| CN201843599U (en) * | 2010-10-22 | 2011-05-25 | 中国石油化工股份有限公司 | Thermal lifting device for heavy oil in ultradeep layer |
| US20150233221A1 (en) * | 2012-01-25 | 2015-08-20 | Tech Flo Consulting, Llc | Hydraulic Powered Downhole Pump |
| CN202531496U (en) * | 2012-03-01 | 2012-11-14 | 中国石油天然气股份有限公司 | Droppable and fishable gas injected injection pump for gas lift |
| CN205689502U (en) * | 2016-05-20 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of coiled tubing positive displacement pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101909A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Water jet assisted oil recovery method for bottom of difficultly-used reservoir |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105840560B (en) | 2017-11-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210827 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106, Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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| TR01 | Transfer of patent right |