CN210919594U - Small hydraulic pump in oil pipe - Google Patents
Small hydraulic pump in oil pipe Download PDFInfo
- Publication number
- CN210919594U CN210919594U CN201922019503.4U CN201922019503U CN210919594U CN 210919594 U CN210919594 U CN 210919594U CN 201922019503 U CN201922019503 U CN 201922019503U CN 210919594 U CN210919594 U CN 210919594U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- inner cavity
- pipe
- cavity
- oil pipe
- 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.)
- Expired - Fee Related
Links
- 238000009792 diffusion process Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000007547 defect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Abstract
The utility model discloses a small hydraulic pump in oil pipe, which comprises an upper joint, a pump barrel and a lower joint which are connected in sequence, wherein a nozzle, a diffusion pipe and a mixing cavity which are communicated with each other in inner cavities are sequentially arranged in the pump barrel from top to bottom; an overflowing groove is formed between the lower end of the nozzle and the upper end of the diffusion tube and communicated with the inner cavity of the diffusion tube, overflowing channels are formed between the outer walls of the diffusion tube and the mixing cavity and the inner wall of the pump barrel and communicated with the inner cavity of the lower connector, and the overflowing groove is also communicated with the overflowing channels. The utility model discloses simple structure is practical and can realize the flowing back in the oil pipe.
Description
Technical Field
The utility model relates to an underground operation instrument in oil gas field development field, especially a little hydraulic pump in oil pipe.
Background
The existing hydraulic pump mainly comprises a pump cylinder and a pump core, wherein the pump cylinder is firstly put into a well along with a pipe column during use, and the pump core is put into the well when liquid needs to be drained. The advantage of design like this can keep having great area of overflowing in the tubular column before the flowing back, washes out the pump core after the flowing back, also can keep having great area of overflowing in the tubular column. The pump has the defects that the pump can only be used for liquid drainage in the sleeve, and the outer diameter of the pump cylinder is generally larger than 90mm, so that the pump can not be used for liquid drainage in the oil pipe.
Disclosure of Invention
An object of the utility model is to solve above-mentioned technical problem and provide a little hydraulic pump in oil pipe that can be used for flowing back in the oil pipe.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a small hydraulic pump in an oil pipe comprises an upper joint, a pump barrel and a lower joint which are sequentially connected, wherein a nozzle, a diffusion pipe and a mixing cavity which are communicated with each other in inner cavities are sequentially arranged in the pump barrel from top to bottom;
an overflow groove is formed between the lower end of the nozzle and the upper end of the diffusion tube and is communicated with the inner cavity of the diffusion tube, overflow channels are formed between the outer walls of the diffusion tube and the mixing cavity and the inner wall of the pump barrel and are communicated with the inner cavity of the lower connector, and the overflow groove is also communicated with the overflow channels;
the injected power fluid generates high-speed jet flow and forms a negative pressure area when passing through the nozzle so as to drive formation fluid to flow in from the lower joint; the formation fluid can enter an annular space between the pump cylinder and the oil pipe through an inner cavity of the lower joint, the overflowing channel, the overflowing groove, an inner cavity of the diffusion pipe and the mixing cavity, the liquid outlet and the liquid passing hole in sequence and then returns to the ground.
Furthermore, a top pipe and a nozzle sleeve are further arranged between the upper joint and the nozzle, the upper portion of the top pipe is inserted into the lower portion of the inner cavity of the upper joint, the lower portion of the inner cavity of the upper joint is in threaded connection with the upper portion of the nozzle sleeve, the nozzle is clamped in the nozzle sleeve, and the bottom of the top pipe tightly abuts against the top of the nozzle.
Furthermore, the bottom of the nozzle sleeve is inserted into the upper part of the inner cavity of the diffusion pipe, and a plurality of nozzle sleeve flow passing grooves are uniformly formed in the bottom of the nozzle sleeve in the circumferential direction to form flow passing grooves between the lower end of the nozzle and the upper end of the diffusion pipe and achieve communication between the flow passing channels and the inner cavity of the diffusion pipe.
Furthermore, the bottom of the diffusion pipe is sleeved on the upper part of the mixing cavity, the upper part of the inner cavity of the diffusion pipe is provided with a throat pipe, and the outer wall of the diffusion pipe is circumferentially and uniformly provided with a plurality of diffusion pipe flow passing grooves to form the flow passing channel.
Furthermore, the mixing chamber and the pump barrel are welded and fixed, the number of liquid outlets on the mixing chamber is three and is distributed circumferentially at equal angles, and a plurality of mixing chamber overflow grooves are uniformly distributed circumferentially on the outer wall of the mixing chamber to form the overflow channel.
Furthermore, the middle part of the lower joint is welded and fixed with the bottom of the pump barrel, and the upper part of the inner cavity of the lower joint is provided with a plurality of lower joint overflowing grooves so as to realize the communication between the inner cavity of the lower joint and the overflowing channel.
The utility model has the advantages that: the utility model discloses cooperation coiled tubing and packer use together, and power liquid produces high-speed efflux when the nozzle, forms negative pressure zone between nozzle and choke, and formation fluid flows in from the lower clutch to through corresponding passageway, overflow groove and liquid outlet and cross the liquid hole and get into to the annular space between pump barrel and the oil pipe and go up to return to ground, and then realize the interior hydraulic jet pump flowing back of oil pipe.
Drawings
FIG. 1 is a schematic structural view of a small hydraulic pump in an oil pipe according to the present invention;
FIG. 2 is a schematic structural view of a nozzle sleeve according to the present invention;
FIG. 3 is a schematic structural view of a diffusion tube according to the present invention;
fig. 4 is a schematic structural view of the mixing chamber of the present invention.
In the figure: 1. an upper joint; 2. a pump barrel; 21. a liquid passing hole; 3. jacking pipes; 4. a nozzle sleeve; 41. the nozzle sleeve overflow groove; 5. a nozzle; 6. a throat; 7. a diffuser tube; 71. a diffusion pipe flow through groove; 8. a mixing chamber; 81. a liquid outlet; 82. a mixing chamber overflow trough; 9. a lower joint; 91. the lower connector overflow groove.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 1 to 4, the small hydraulic pump in oil pipe of the present invention includes an upper joint 1, a pump barrel 2, a top pipe 3, a nozzle sleeve 4, a nozzle 5, a throat pipe 6, a diffuser 7, a mixing chamber 8 and a lower joint 9, which are coaxially disposed. Wherein the upper joint 1, the pump barrel 2 and the lower joint 9 are connected in turn by screw threads; the inner side of the pump barrel 2 and positioned between the upper joint 1 and the lower joint 9 are provided with a top pipe 3, a nozzle 5, a nozzle sleeve 4, a throat pipe 6, a diffusion pipe 7, a mixing cavity 8 and other parts from top to bottom.
The mixing cavity 8 is welded with the pump barrel 2, and the parts above the mixing cavity 8 are pressed on the parts below through the upper joint 1. Specifically, the upper part of the top pipe 3 is inserted into the lower part of the upper joint 1, the lower part of the top pipe is connected with the upper part of the nozzle sleeve 4 through mechanical threads, the bottom of the top pipe 3 tightly props against the top of the nozzle 5 to clamp the nozzle 5 inside the nozzle sleeve 4, the bottom of the nozzle sleeve 4 is inserted into the upper part of the inner cavity of the diffusion pipe 7, the throat pipe 6 is embedded into the upper part of the inner cavity of the diffusion pipe 7, the bottom of the diffusion pipe 7 is sleeved on the upper part of the mixing cavity 8, the top of the lower joint 9 is in contact with the bottom of the mixing cavity 8, and the middle part of the lower joint.
The inner cavities of the upper joint 1, the top pipe 3, the nozzle sleeve 4, the nozzle 5, the throat pipe 6, the diffusion pipe 7 and the mixing cavity 8 are communicated, the upper end of the mixing cavity 8 is open, the lower end of the mixing cavity is closed, 3 liquid outlets 81 which are distributed in the circumferential direction at equal angles are communicated and arranged at the bottom of the inner cavity of the mixing cavity 8, correspondingly, 3 liquid passing holes 21 are formed in the outer wall of the pump barrel 2, and the liquid outlets 81 and the liquid passing holes 21 are concentrically arranged in one-to-one correspondence and welded together.
The bottom circumference equipartition of nozzle cover 4 is formed with a plurality of nozzle cover overflow groove 41, and the circumference equipartition is formed with a plurality of diffuser pipe overflow groove 71 on the outer wall of diffuser pipe 7, and the circumference equipartition is formed with 3 hybrid chamber overflow groove 82 on the outer wall of hybrid chamber 8, and the inner chamber upper portion of lower clutch 9 is opened has 3 lower clutch overflow groove 91. Wherein, a flow passage is formed among the diffusion tube flow passing groove 71, the mixing cavity flow passing groove 82 and the inner wall of the pump barrel 2; the nozzle sleeve overflow groove 41 forms an overflow groove between the nozzle 5 and the diffusion pipe 7 and realizes the communication between an overflow channel and the inner cavity of the diffusion pipe 7; the 3 lower connector overflow grooves 91 and the 3 mixing cavity overflow grooves 82 are arranged in a one-to-one correspondence manner, so that the communication between the inner cavity of the lower connector 9 and the overflow channel is realized; therefore, the communication between the inner cavity of the lower joint 9 and the inner cavity of the diffuser pipe 7 is realized by the penetration of the nozzle casing overflow groove 41, the diffuser pipe overflow groove 71, the mixing chamber overflow groove 82, and the lower joint overflow groove 91.
The working principle of the invention is as follows:
connect gradually oil pipe the utility model discloses a little hydraulic pump in the oil pipe, can be used to in the oil pipe and can lock the packer that sets up the state and constitute the tool string, then with the preset position of tool string in going down oil pipe, set up the packer. Power fluid is injected into the coiled tubing, the power fluid generates high-speed jet flow when passing through the nozzle 5, a negative pressure area is formed between the nozzle 5 and the throat 6, formation fluid flows in from an inner cavity of the lower connector 9, and finally forms mixed fluid after being mixed with the power fluid through a lower connector overflow groove 91 at the top of the lower connector 9, an overflow channel between the mixing cavity 8 and the diffusion tube 7 and the pump barrel 2, and a nozzle sleeve overflow groove 41 at the bottom of the nozzle sleeve 4, and the mixed fluid enters inner cavities of the throat 6 and the diffusion tube 7, flows to an annular space between a small hydraulic pump (the pump barrel 2) in the oil tube and the oil tube from a liquid outlet 81 on the mixing cavity 8 and then returns to the ground.
In summary, the present invention is not limited to the above embodiments, and those skilled in the art can provide other embodiments within the technical teaching of the present invention, but these embodiments are included in the scope of the present invention.
Claims (6)
1. A small hydraulic pump in an oil pipe comprises an upper joint, a pump barrel and a lower joint which are sequentially connected, and is characterized in that a nozzle, a diffusion pipe and a mixing cavity which are communicated with each other through inner cavities are sequentially arranged in the pump barrel from top to bottom, the inner cavity of the nozzle is communicated with the inner cavity of the upper joint, the upper end of the mixing cavity is open, the lower end of the mixing cavity is closed, the bottom of the inner cavity of the mixing cavity is communicated with a plurality of liquid outlets, and the outer wall of the pump barrel is also provided with a plurality of liquid passing holes which are arranged in one-to-one correspondence to the liquid;
an overflow groove is formed between the lower end of the nozzle and the upper end of the diffusion tube and is communicated with the inner cavity of the diffusion tube, overflow channels are formed between the outer walls of the diffusion tube and the mixing cavity and the inner wall of the pump barrel and are communicated with the inner cavity of the lower connector, and the overflow groove is also communicated with the overflow channels;
the injected power fluid generates high-speed jet flow and forms a negative pressure area when passing through the nozzle so as to drive formation fluid to flow in from the lower joint; the formation fluid can enter an annular space between the pump cylinder and the oil pipe through an inner cavity of the lower joint, the overflowing channel, the overflowing groove, an inner cavity of the diffusion pipe and the mixing cavity, the liquid outlet and the liquid passing hole in sequence and then returns to the ground.
2. The small hydraulic pump in oil pipe according to claim 1, characterized in that a top pipe and a nozzle sleeve are further arranged between the upper joint and the nozzle, the upper part of the top pipe is inserted in the lower part of the inner cavity of the upper joint, the lower part of the top pipe is in threaded connection with the upper part of the nozzle sleeve, the nozzle is clamped in the nozzle sleeve, and the bottom of the top pipe tightly abuts against the top of the nozzle.
3. The small hydraulic pump in oil pipe according to claim 2, wherein the bottom of the nozzle sleeve is inserted into the upper part of the inner cavity of the diffuser pipe, and a plurality of nozzle sleeve flow passing grooves are uniformly formed at the bottom of the nozzle sleeve in the circumferential direction to form flow passing grooves between the lower end of the nozzle and the upper end of the diffuser pipe and to realize the communication of the flow passing channel and the inner cavity of the diffuser pipe.
4. The small water pump in oil pipe according to any one of claims 1 to 3, wherein the bottom of the diffuser is sleeved on the upper part of the mixing cavity, the upper part of the inner cavity of the diffuser is provided with a throat, and the outer wall of the diffuser is further provided with a plurality of diffuser flow passing grooves uniformly distributed and formed in the circumferential direction to form the flow passing channel.
5. The small hydraulic pump in oil pipe according to claim 4, wherein the mixing chamber and the pump barrel are welded and fixed, the number of liquid outlets on the mixing chamber is three and the liquid outlets are circumferentially distributed at equal angles, and a plurality of mixing chamber overflow grooves are circumferentially and uniformly formed on the outer wall of the mixing chamber to form the overflow channel.
6. The small hydraulic pump in oil pipe according to claim 5, wherein the middle part of the lower joint is welded and fixed with the bottom of the pump barrel, and the upper part of the inner cavity of the lower joint is provided with a plurality of lower joint overflowing grooves to realize the communication between the inner cavity of the lower joint and the overflowing channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019503.4U CN210919594U (en) | 2019-11-21 | 2019-11-21 | Small hydraulic pump in oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019503.4U CN210919594U (en) | 2019-11-21 | 2019-11-21 | Small hydraulic pump in oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919594U true CN210919594U (en) | 2020-07-03 |
Family
ID=71366894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922019503.4U Expired - Fee Related CN210919594U (en) | 2019-11-21 | 2019-11-21 | Small hydraulic pump in oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919594U (en) |
-
2019
- 2019-11-21 CN CN201922019503.4U patent/CN210919594U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101705798B (en) | Vortex sand washing device | |
| WO2014190518A1 (en) | Negative pressure combined-sand-washing and forced-sand-discharging device | |
| CN111042767B (en) | Horizontal well segmented acidizing filling sand prevention integrated tubular column and method | |
| CN210919594U (en) | Small hydraulic pump in oil pipe | |
| CN211974915U (en) | Circulating rotational flow washing tool in large-inclination oil well | |
| CN111577204B (en) | Underground cascade sliding sleeve system | |
| CN211115941U (en) | Injection-production communicating vessel and injection-production-down-production process pipe column | |
| CN205225226U (en) | Sleeve pipe sliding sleeve fracturing production integration tubular column | |
| CN206957637U (en) | Sand block packer for water injection well sand control combines | |
| CN210564418U (en) | Sand washing pipe column | |
| CN112855100B (en) | Underground in-situ fixed online profile control and drive device, tubular column and method | |
| CN216110656U (en) | Gravel reverse feeding device for filter arranged in ground leaching production well | |
| CN109779547B (en) | Downhole liquid flow reversing tool | |
| CN213775324U (en) | Water control segmented sliding sleeve | |
| CN201671591U (en) | Concentric tube winding reservoir cementing tool | |
| CN211422544U (en) | Multi-edge double-channel multi-stage pushing deslagging drill rod | |
| CN209908478U (en) | Baffle type underground foaming device | |
| CN108166956B (en) | Nozzle-replaceable throttle and application method thereof | |
| CN210141115U (en) | Bypass flow guide sieve tube | |
| CN109339723B (en) | Oil-layer protection continuous sand washing and carrying device | |
| CN208152967U (en) | Continuous sand flushing circulating valve | |
| CN114482950A (en) | Injection increasing device for water injection well | |
| CN201148859Y (en) | Hole opening differential pressure type stage cementing device | |
| CN201908600U (en) | Through-center die collar | |
| CN113931594A (en) | Slurry bag type leaking stoppage tool capable of circulating drilling fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210824 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |