CN210829170U - Packer for quickly stabilizing water content of wellhead produced liquid of low-oil-production oil well - Google Patents
Packer for quickly stabilizing water content of wellhead produced liquid of low-oil-production oil well Download PDFInfo
- Publication number
- CN210829170U CN210829170U CN201921175369.0U CN201921175369U CN210829170U CN 210829170 U CN210829170 U CN 210829170U CN 201921175369 U CN201921175369 U CN 201921175369U CN 210829170 U CN210829170 U CN 210829170U
- Authority
- CN
- China
- Prior art keywords
- oil
- packer
- well
- rubber
- ring
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003129 oil well Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 title claims abstract description 18
- 230000000087 stabilizing effect Effects 0.000 title claims description 12
- 238000005406 washing Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 230000006641 stabilisation Effects 0.000 claims abstract description 6
- 238000011105 stabilization Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 28
- 239000010779 crude oil Substances 0.000 abstract description 11
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a packer of low oil production oil well fast stabilization well head extraction liquid moisture content. The problem that the stability time of well head water content is very long when the oil sleeve annulus time above a pump suction inlet is filled with crude oil of the existing high-water-content oil well is mainly solved. The method is characterized in that: the upper joint (1) is connected with the central pipe (4), and the lower joint (16) is in threaded connection with the lower end of the central pipe (4); the middle part of the central tube (4) is in threaded connection with a rubber sleeve shaft (8), and the bottom of the central tube is in threaded connection with a sealing sleeve (13); the upper end of the rubber cylinder shaft (8) is sleeved with a well washing piston (3); the middle lower part of the rubber cylinder shaft (8) is sequentially sleeved with a plurality of rubber cylinders (10), the rubber cylinder shafts at the upper end and the lower end of each rubber cylinder are respectively connected with an upper pressing ring (7) and a lower pressing ring (12) in a threaded manner, and the rubber cylinder shafts are connected with the lower pressing rings (12) through setting starting nails (11); two opposite protection rings are arranged between the well washing piston (3) and the piston back cap (6). The packer can quickly stabilize the water content of the wellhead produced liquid.
Description
Technical Field
The utility model relates to an instrument of oil field borehole operation technical field, in particular to packer of low oil production oil well fast stabilization well head extraction liquid moisture content.
Background
After the stratum produced oil reaches the suction inlet of the pump at the initial stage of production of the mechanical oil production well after operation, one part of crude oil enters the oil pipe and is produced to a well head, the other part of crude oil continuously floats upwards along the oil sleeve annulus, until the oil sleeve annulus on the upper part of the suction inlet of the pump is completely filled with the crude oil, the crude oil produced from the stratum can not completely enter the oil pump at the moment, the crude oil is produced to the well head, and the water content of the well head at the moment is the true water content of the stratum. However, for a high water content oil well (especially for a same-well injection and production well), the oil yield is only below 0.5 m/d, the time for filling the oil sleeve annulus above a pump suction inlet with crude oil is very long, the stabilization time for water content of a wellhead is very long, and the packer can quickly stabilize the water content of wellhead produced fluid for the well.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome the long problem of the stable time that the current high moisture oil well crude oil that exists in the background art is full of the very long well head moisture of oil jacket annular space time above the pump sunction inlet, and provide a packer of low oil production well fast stabilization well head extraction liquid moisture, this packer of low oil production well fast stabilization well head extraction liquid moisture, the crude oil of stratum output as long as be full of the pump sunction inlet to the packer rubber barrel between the oil jacket annular space alright make well head extraction liquid moisture stable fast.
The utility model provides a its problem accessible reach as follows technical scheme: the packer for quickly stabilizing the water content of the wellhead produced liquid of the low-oil-production oil well comprises an upper joint and a lower joint, wherein the upper joint is connected with a central pipe, and the upper end of the lower joint is sleeved on the central pipe and is in threaded connection with the lower end of the central pipe; the middle part of the central tube is in threaded connection with the rubber sleeve shaft, and the bottom of the central tube is in threaded connection with the sealing sleeve; the upper end of the rubber cylinder shaft is sleeved with a well washing piston; the middle lower part of the rubber cylinder shaft is sequentially sleeved with a plurality of rubber cylinders, the rubber cylinder shafts at the upper end and the lower end of each rubber cylinder are respectively connected with an upper pressure ring and a lower pressure ring in a threaded manner, and the rubber cylinder shafts are connected with the lower pressure rings through setting starting nails; the well washing piston is in threaded connection with a piston back cap, and two opposite protection rings are arranged between the well washing piston and the piston back cap; an O-shaped rubber ring B is arranged between the two opposite protective rings; a compression spring is sleeved on a central pipe between the upper part of the well washing piston and the upper joint; the upper end of the lower joint is in threaded connection with a sliding pin; the external thread of the lower joint is connected with the lower end of the lower pressing ring.
Compared with the above background art, the utility model can have following beneficial effect: the packer for quickly stabilizing the water content of the wellhead produced fluid of the low-oil-production oil well is arranged on the upper part of a pump suction inlet, and the water content of the wellhead produced fluid can be stabilized as long as crude oil produced by a stratum is filled in an oil sleeve annulus between the pump suction inlet and a packer rubber cylinder. When the annular pressure of the oil sleeve on the upper part of the packer is 0.1MPa higher than that of the oil sleeve on the lower part of the packer, the upper and lower communication channels of the packer can be opened to monitor the flow pressure of an oil layer, and meanwhile, the channel can also be used as a channel of oil well flushing fluid, and can be automatically closed when the annular pressure on the upper part of the packer is balanced. The invention can quickly stabilize the water content without influencing the normal flowing pressure monitoring and well washing requirements.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is an enlarged schematic view of a in fig. 1.
In the figure: 1-upper joint; 2-compression spring; 3-well-flushing piston; 4-a central tube; 5-a protective ring; 6, a piston back cap; 7, pressing a ring; 8-a rubber cylinder shaft; 9-spacer ring; 10, a rubber cylinder; 11-setting the starting nail; 12, pressing a ring downwards; 13-sealing sleeve; 14-a sliding pin; 15-O type rubber ring A; 16-lower joint; and a 17-O type rubber ring B.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings:
as shown in the attached figure 1, the packer for quickly stabilizing the water content of the wellhead produced fluid of the low-oil-production oil well comprises an upper joint 1 and a lower joint 16, wherein the upper joint 1 is connected with a central pipe 4, and the upper end of the lower joint 16 is sleeved on the central pipe 4 and is in threaded connection with the lower end of the central pipe 4; the middle part of the central tube 4 is in threaded connection with the rubber sleeve shaft 8, and the bottom of the central tube 4 is in threaded connection with the sealing sleeve 13; the upper end of the rubber cylinder shaft 8 is sleeved with a well washing piston 3; a plurality of rubber cylinders 10 are sequentially sleeved at the middle lower part of the rubber cylinder shaft 8, and generally, three groups of rubber cylinders of the packer are provided; a spacing ring 9 is arranged between the adjacent rubber cylinders 10; a rubber cylinder shaft 8 at the upper end and the lower end of a rubber cylinder 10 is respectively connected with an upper pressure ring 7 and a lower pressure ring 12 in a threaded manner, and the rubber cylinder shaft 8 is connected with the lower pressure ring 12 through a setting start nail 11; the well washing piston 3 is in threaded connection with a piston back cap 6, and two opposite protection rings 5 are arranged between the well washing piston 3 and the piston back cap 6; as shown in fig. 2, one side end of the protection ring 5 is a plane structure, and the other side end is an arc structure matched with an arc of an O-shaped rubber ring B17; an O-shaped rubber ring B17 is arranged between the two opposite protection rings 5, the protection rings 5 protect the O-shaped rubber ring B17, the O-shaped rubber ring B17 is prevented from being damaged when the well washing piston 3 acts or bears pressure, and meanwhile, the effect of reducing friction force when the well washing piston 3 moves axially is achieved; a compression spring 2 is sleeved on a central pipe 4 between the upper part of the well washing piston 3 and the upper joint 1; the upper end of the lower joint 16 is in threaded connection with the sliding pin 14; the outer part of the lower joint 16 is in threaded connection with the lower end of the lower pressure ring 12; an O-shaped rubber ring A15 is arranged between the lower pressure ring 12 and the lower joint 16; the protection ring 5 is made of polytetrafluoroethylene.
The packer for quickly stabilizing the water content of the wellhead produced fluid of the low-oil-production oil well is arranged on the upper part of a pump suction inlet, and the water content of the wellhead produced fluid can be stabilized as long as crude oil produced by a stratum is filled in an oil sleeve annulus between the pump suction inlet and a packer rubber cylinder 10. When the annular pressure of the oil sleeve on the upper part of the packer is 0.1MPa higher than that of the oil sleeve on the lower part of the packer, the upper and lower communication channels of the packer can be opened to monitor the flow pressure of an oil layer, and meanwhile, the channel can also be used as a channel of oil well flushing fluid, and can be automatically closed when the annular pressure on the upper part of the packer is balanced. When the composite material is applied to a sleeve pipe with the diameter of 140mm, the inner drift diameter can reach 60 mm-76 mm. When the packer is used, the packer is normally set after being lowered to a specified position, the effect of stabilizing water content can be achieved, the requirements of monitoring the working fluid level and washing a well can be met, and the packer is taken out along with a pipe column after being deblocked in secondary operation. The packer for quickly stabilizing the water content of the wellhead produced liquid of the low-oil-production oil well is applied in the field in the specific process that:
setting: the upper joint 1 is connected with a pipe column and is pressed down to cut the setting starting nail 11 after the pipe column is put into place, the pipe column is pressed down continuously, the upper joint 1 pushes the central pipe 4, the upper pressing ring 7 and the rubber sleeve shaft 8 to move downwards to gradually compress the rubber sleeve 10 until the rubber sleeve 10 is completely set.
The working fluid level monitoring process comprises the following steps: when the annular pressure of the oil sleeve on the upper part of the packer is 0.1MPa higher than the annular pressure of the oil sleeve on the lower part of the packer, liquid above the packer pushes the well washing piston 3 to move upwards until the liquid passing hole on the rubber sleeve is exposed, the annular communication of the oil sleeve on the upper part and the lower part of the packer is realized, and the submergence degree and the bottom hole flowing pressure of the oil well pump can be obtained by testing the annular liquid level height. When the pressure of the packer oil sleeve annulus is balanced, the compression spring 2 pushes the well-flushing piston 3 to reset, and the well-flushing channel is closed.
And (3) deblocking process: and lifting the pipe column, driving the central pipe 4, the upper pressing ring 7 and the rubber sleeve shaft 8 to move upwards by the upper joint 1, resetting the release space rubber sleeve 10, and taking the whole packer out of the well.
Claims (5)
1. The utility model provides a packer of low oil production oil well fast stabilization well head produced liquid moisture content, includes top connection (1), lower clutch (16), its characterized in that: the upper joint (1) is connected with the central pipe (4), and the upper end of the lower joint (16) is sleeved on the central pipe (4) and is in threaded connection with the lower end of the central pipe (4); the middle part of the central tube (4) is in threaded connection with a rubber sleeve shaft (8), and the bottom of the central tube (4) is in threaded connection with a sealing sleeve (13); the upper end of the rubber cylinder shaft (8) is sleeved with a well washing piston (3); the middle lower part of the rubber cylinder shaft (8) is sequentially sleeved with a plurality of rubber cylinders (10), the rubber cylinder shafts (8) at the upper end and the lower end of each rubber cylinder (10) are respectively connected with an upper pressing ring (7) and a lower pressing ring (12) in a threaded manner, and the rubber cylinder shafts (8) are connected with the lower pressing rings (12) through seat seal starting nails (11); the well washing piston (3) is in threaded connection with a piston back cap (6), and two opposite protection rings (5) are arranged between the well washing piston (3) and the piston back cap (6); an O-shaped rubber ring B (17) is arranged between the two opposite protection rings (5); a compression spring (2) is sleeved on a central pipe (4) between the upper part of the well washing piston (3) and the upper joint (1); the upper end of the lower joint (16) is connected with a sliding pin (14) in a threaded manner; the outer part of the lower joint (16) is in threaded connection with the lower end of the lower pressing ring (12).
2. The packer for quickly stabilizing the water content of the wellhead produced liquid of the low-oil-production oil well according to claim 1, is characterized in that: one side end of the protection ring (5) is of a plane structure, and the other side end of the protection ring is of an arc structure matched with an O-shaped rubber ring B (17) in an arc manner.
3. The packer for quickly stabilizing the water content of the wellhead produced liquid of the low-oil-production oil well according to claim 1, is characterized in that: a spacing ring (9) is arranged between the adjacent rubber cylinders (10).
4. The packer for quickly stabilizing the water content of the wellhead produced liquid of the low-oil-production oil well according to claim 1, is characterized in that: an O-shaped rubber ring A (15) is arranged between the lower pressure ring (12) and the lower joint (16).
5. The packer for quickly stabilizing the water content of the wellhead produced liquid of the low-oil-production oil well according to claim 1, is characterized in that: the protection ring (5) is made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921175369.0U CN210829170U (en) | 2019-07-24 | 2019-07-24 | Packer for quickly stabilizing water content of wellhead produced liquid of low-oil-production oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921175369.0U CN210829170U (en) | 2019-07-24 | 2019-07-24 | Packer for quickly stabilizing water content of wellhead produced liquid of low-oil-production oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829170U true CN210829170U (en) | 2020-06-23 |
Family
ID=71255413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921175369.0U Active CN210829170U (en) | 2019-07-24 | 2019-07-24 | Packer for quickly stabilizing water content of wellhead produced liquid of low-oil-production oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829170U (en) |
-
2019
- 2019-07-24 CN CN201921175369.0U patent/CN210829170U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071900B (en) | Self-constant pressure expanding open hole packer | |
| CN106437605B (en) | A kind of packer | |
| CN105114027B (en) | A kind of anti-shoulder compression packer of flexible self sealss | |
| CN109322647A (en) | Layered injection-production integrated pipe column and process | |
| CN204436318U (en) | A kind of paired cable passes through packer | |
| CN203347736U (en) | Water-injection packer capable of being subjected to deblocking step by step | |
| CN201507268U (en) | Step-by-step sealing detecting device | |
| CN111485849A (en) | Casing hydraulic packer | |
| CN211115910U (en) | Three-piston hydraulic balance washable well packer | |
| CN210829170U (en) | Packer for quickly stabilizing water content of wellhead produced liquid of low-oil-production oil well | |
| CN107916910A (en) | Independent hydraulic control packer pressure valve | |
| CN112012688B (en) | Relay seat-sealing type packer and method | |
| CN107829710B (en) | Annular valve plate type underground safety device | |
| CN110847846B (en) | Packer for oil field exploitation | |
| CN104213867B (en) | A kind of multi-functional Water well packer | |
| CN203847057U (en) | Water injection packer | |
| CN206158663U (en) | Minor diameter double -piston ground liquid accuse compression packer | |
| RU128896U1 (en) | DEVICE FOR TRANSFER OF WELLS, INCLUDING WATERFILLED, TO OPERATION ON TWO LIFT COLUMNS | |
| CN113047791B (en) | Heavy oil thermal recovery top water channeling and multistage steam channeling prevention method | |
| CN206144512U (en) | High -temperature and high -pressure packer | |
| CN110359875A (en) | Extension gas lift device and method | |
| CN213087959U (en) | Fishing type bridge plug with seal sending function | |
| CN210134883U (en) | Injection-production integrated pipe column in same well | |
| CN212249945U (en) | Packer around middle layer | |
| CN109306854A (en) | Packer capable of being unsealed step by step and separate-layer water injection string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |