CN105840560B - Coiled tubing positive displacement pump - Google Patents
Coiled tubing positive displacement pump Download PDFInfo
- Publication number
- CN105840560B CN105840560B CN201610343535.8A CN201610343535A CN105840560B CN 105840560 B CN105840560 B CN 105840560B CN 201610343535 A CN201610343535 A CN 201610343535A CN 105840560 B CN105840560 B CN 105840560B
- Authority
- CN
- China
- Prior art keywords
- low pressure
- pressure chamber
- coiled tubing
- hole
- positive displacement
- 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.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 title claims description 16
- 239000012530 fluid Substances 0.000 claims description 24
- 206010008469 Chest discomfort Diseases 0.000 claims description 14
- 230000037361 pathway Effects 0.000 claims description 11
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000001802 infusion Methods 0.000 claims description 5
- 229920000954 Polyglycolide Polymers 0.000 claims description 3
- OWXLRKWPEIAGAT-UHFFFAOYSA-N [Mg].[Cu] Chemical compound [Mg].[Cu] OWXLRKWPEIAGAT-UHFFFAOYSA-N 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 229920001610 polycaprolactone Polymers 0.000 claims description 3
- 239000004632 polycaprolactone Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004633 polyglycolic acid Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 15
- 238000005086 pumping Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 2
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a continuous oil pipe liquid discharge pump which comprises a liquid discharge pump body, wherein a through hole with variable inner diameter is formed in the body, the through hole forms a high-pressure cavity, a throat pipe and a low-pressure cavity for pumping power liquid, the high-pressure cavity and the low-pressure cavity are connected through the throat pipe, the diameters of the high-pressure cavity and the low-pressure cavity are larger than that of the throat pipe, the upper end of the body is provided with an upper connector and the high-pressure cavity which are connected with the bottom of the continuous oil pipe, the lower end of the body is provided with a lower connector and a low-pressure cavity which are connected with a packer, a plug is connected with the low-pressure cavity through a screw thread and seals an outlet at the lower end of the low-pressure cavity, a liquid outlet communicated with the low-pressure cavity is formed in the side surface of the lower end of the body, a baffle connected with the liquid outlet through the screw thread. The invention has simple structure, convenient operation and low cost, and is a new tool for the drainage and mining operation.
Description
Technical field
The present invention relates to a kind of downhole tool of oil-gas field development application, is especially connected to the bottom of coiled tubing, leads to
Ground infusion power fluid is crossed, carries out the coiled tubing positive displacement pump that mining uses.
Background technology
At present the lifting technology of Oil/gas Well include rod pumping pump, electric pump, screw pump, hydraulic pump, gaslift, foams drain,
The modes such as pumping, for High water cut gas well, majority uses foams drain, but effect is undesirable when stratum is aqueous high, uses
Gas lift liquid drainage is costly, and back pressure height is produced to stratum, and discharge opeing effect is undesirable, needs kill-job to play flowline using other pumps,
Length duty cycle be present, have the shortcomings that pollution to stratum.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of coiled tubing positive displacement pump, for gas lift liquid drainage, can not under
Enter the well low cost discharge opeing problem of the modes such as sucker rod pump, electric pump.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of coiled tubing positive displacement pump, including row
Liquid pump body, there is the through hole of internal diameter change in body interior, through hole constitutes the high pressure chest, trunnion and low pressure of infusion power fluid
Chamber, connected between high pressure chest and low pressure chamber by trunnion, the diameter of high pressure chest and low pressure chamber is more than the diameter of trunnion, body upper end
It is the top connection and high pressure chest being connected with the bottom of coiled tubing, lower end is the lower contact and low pressure chamber being connected with packer, silk
The stifled outlet for being connected simultaneously sealing low pressure chamber lower end with low pressure chamber by screw thread, set what is communicated with low pressure chamber in body lower end side
Fluid hole, the baffle plate of screwed connection is provided with fluid hole, in the lower intersegmental part of body, is provided with beside low pressure chamber
The feed pathway communicated with outside body lower end, feed pathway are connected with low pressure chamber by imbibing hole.
The imbibing hole is located at the position that trunnion connects transition with low pressure chamber, and fluid hole is in low pressure chamber bottom close to lower contact
Position, feed pathway is parallel with the central shaft of low pressure chamber, and has a diameter larger than the diameter of imbibing hole.
The baffle plate is degradable material.
The baffle plate is magnesium alloy, zinc magnesium alloy, copper magnesium alloy, polycaprolactone, polypropylene, PLA, polyglycolic acid
With the one or more in polythene material.
The beneficial effects of the invention are as follows：It is simple in construction, it is easy to operate, it is the new tool of gas well discharge opeing.
Brief description of the drawings
Fig. 1 is the structural representation of coiled tubing positive displacement pump of the present invention.
Fig. 2 is the use state figure of coiled tubing positive displacement pump of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, the coiled tubing positive displacement pump of the present invention, including positive displacement pump body 10, there is internal diameter inside body 10
The through hole of change, through hole constitutes the high pressure chest 2, trunnion 3 and low pressure chamber 4 of infusion power fluid, between high pressure chest 2 and low pressure chamber 4
Connected by trunnion 3, 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 the bottom with coiled tubing
The top connection 1 of portion's connection and high pressure chest 2, lower end are the lower contact 6 and low pressure chamber 4 be connected with packer, plug 9 by screw thread and
The connection of low pressure chamber 4 and the outlet of the lower end of sealing low pressure chamber 4, the fluid hole communicated with low pressure chamber 4 is set in the lower end side of body 10
5, the baffle plate 11 of screwed connection is provided with fluid hole 5, in the lower intersegmental part of body 10, is set positioned at the side of low pressure chamber 4
With the feed pathway 7 communicated outside body lower end, feed pathway 7 is connected with low pressure chamber 4 by imbibing hole 8.
The imbibing hole 8 is located at trunnion 3 and low pressure chamber 4 connects the position of transition, and fluid hole 5 is close in the bottom of low pressure chamber 4
The position of lower contact 6, feed pathway 7 is parallel with the central shaft of low pressure chamber 4, and has a diameter larger than the diameter of imbibing hole 8.
The baffle plate 11 is degradable material, is magnesium alloy, zinc magnesium alloy, copper magnesium alloy, polycaprolactone, poly- third
One or more in alkene, PLA, polyglycolic acid and polythene material.
The coiled tubing positive displacement pump of the present invention, the bottom of coiled tubing, instrument tripping in are connected to during use by top connection
Behind shaft bottom, baffle plate 11 is gradually degraded in the stratum liquid in shaft bottom so that fluid hole 5 is unimpeded.The infusion power out of coiled tubing
Liquid, when power fluid enters low pressure chamber 4 from high pressure chest 2 by trunnion 3, negative pressure can be produced at imbibing hole 8, the liquid on stratum is just
Discharged after low pressure chamber 4, and power fluid mixing can be entered along feed pathway 7 and imbibing hole 8 by fluid hole 5.
The use process of the present invention is described in detail below：
As shown in Fig. 2 the pump of the present invention is connected into the bottom of coiled tubing 12, the bottom connection packer 13 of pump, utilize
Coiled tubing 12, which is lowered into shaft bottom, needs the position of discharge opeing, first set packer 13 before work, is insulated continuously using packer 13
The annular space of oil pipe 12 and sleeve pipe 14, baffle plate 11 are gradually degraded in the stratum liquid in shaft bottom so that fluid hole 5 is unimpeded.From
Ground face-pumping injects power fluid by coiled tubing 12, when power fluid enters low pressure chamber 4 from high pressure chest 2 by trunnion 3, can inhale
Negative pressure is produced at fluid apertures 8, the liquid on stratum will enter low pressure chamber 4 along feed pathway 7 and imbibing hole 8, and power fluid mixes
The annular space of coiled tubing 12 and sleeve pipe 14 is discharged to by fluid hole 5 afterwards, finally reaches ground, completes discharge opeing process.
By coiled tubing tail band positive displacement pump and packer, first set packer, then land used face-pumping is in coiled tubing
Liquid is injected, using the annular space for the liquid in shaft bottom being discharged to oil pipe and coiled tubing of pump, or sleeve pipe and coiled tubing
Annular space, then returned together with power fluid and be discharged to ground.
In summary, present disclosure is not limited in the above embodiments, and the knowledgeable people in same area can
Can propose other embodiments easily within the technological guidance's thought of the present invention, but this embodiment is included in this hair
Within the scope of bright.
Claims (4)
1. a kind of coiled tubing positive displacement pump, it is characterised in that including positive displacement pump body (10), have internal diameter change inside body (10)
The through hole of change, through hole constitute the high pressure chest (2), trunnion (3) and low pressure chamber (4) of infusion power fluid, high pressure chest (2) and low pressure chamber
(4) connected between by trunnion (3), 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
The top connection (1) being connected with the bottom of coiled tubing and high pressure chest (2), lower end are the lower contacts (6) that are connected with packer and low
Chamber (4) is pressed, plug (9) is connected by screw thread with low pressure chamber (4) and the outlet of sealing low pressure chamber (4) lower end, under body (10)
End side surface sets the fluid hole (5) communicated with low pressure chamber (4), and the baffle plate (11) of screwed connection is provided with fluid hole (5),
In the lower intersegmental part of body (10), the feed pathway (7) with being communicated outside body lower end is provided with beside low pressure chamber (4),
Feed pathway (7) is connected with low pressure chamber (4) by imbibing hole (8).
2. coiled tubing positive displacement pump according to claim 1, it is characterised in that the imbibing hole (8) be located at trunnion (3) and
Low pressure chamber (4) connects the position of transition, and fluid hole (5) is in low pressure chamber (4) bottom close to the position of lower contact (6), feed pathway
(7) it is parallel with the central shaft of low pressure chamber (4), and have a diameter larger than the diameter of imbibing hole (8).
3. coiled tubing positive displacement pump according to claim 1, it is characterised in that the baffle plate (11) is degradable material
Material.
4. coiled tubing positive displacement pump according to claim 3, it is characterised in that the baffle plate (11) is magnesium alloy, zinc
One or more in magnesium alloy, copper magnesium alloy, polycaprolactone, polypropylene, PLA, polyglycolic acid and polythene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343535.8A CN105840560B (en) | 2016-05-20 | 2016-05-20 | 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 | Coiled tubing positive displacement pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840560A CN105840560A (en) | 2016-08-10 |
| CN105840560B true 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 | Coiled tubing positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840560B (en) |
Families Citing this family (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 |
Family Cites Families (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 | Throwing and fishing type underground casing hydraulic jet 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 |
| US20130189123A1 (en) * | 2012-01-25 | 2013-07-25 | Charles O. Stokley | 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 | Throwing and fishing gas injection jet 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 | Coiled tubing positive displacement pump |
-
2016
- 2016-05-20 CN CN201610343535.8A patent/CN105840560B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105840560A (en) | 2016-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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. |
|
| TR01 | Transfer of patent right |