CN2329761Y - Pumping well flushing packer - Google Patents
Pumping well flushing packer Download PDFInfo
- Publication number
- CN2329761Y CN2329761Y CN 98220117 CN98220117U CN2329761Y CN 2329761 Y CN2329761 Y CN 2329761Y CN 98220117 CN98220117 CN 98220117 CN 98220117 U CN98220117 U CN 98220117U CN 2329761 Y CN2329761 Y CN 2329761Y
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- CN
- China
- Prior art keywords
- well
- piston
- flushing
- central tube
- joint
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- Expired - Fee Related
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Abstract
The utility model relates to a well washing packer for an oil pumping well, belonging to a packer which is arranged in an oil well and is used for washing and removing wax The well washing packer for an oil pumping well is composed of a well washing device assembly and a packer assembly. The well washing device assembly which is on the upper part is composed of a well washing piston, a spring, a well washing sleeve, an inner center pipe, an outer center pipe, an upper joint, and a sealing ring. The packer assembly which is on the lower part is composed of an inner center pipe, an outer center pipe, a sealing rubber cylinder, a middle joint, a lock sleeve, a cylinder sleeve, an unsealing sleeve, a piston joint, an upper piston, a lower piston, a lower joint, and a sealing ring. The oil extraction power transmission device has simple structure, and convenient seat seal and unsealing. An unsealing state can not influence oil pumping, and a seat sealing state can be used for the hot washing and wax removing of an oil pumping well. The oil extraction power transmission device uses a little of water, and an oil layer is not polluted.
Description
The utility model relates to and is installed in the packer that the flushing wax removal is used in the oil well, particularly is a kind of pumpingh well flushing packer that is exclusively used in oil field oil pumping paraffin-troubled well.
Packer mainly contains anchor packer, combination wall and anchor packer and hydraulic packer three major types in the existing oil well, according to different purposes tens kinds of packers is arranged.One of its common structure characteristics are that internal diameter is little, if be installed in the oil well pump top, then piston can't pass through; Two of characteristics are that packer itself is not with well washing apparatus, can not finish well-flushing wax removal on the pump.Patent documentation by retrieval, the patent of relevant packer aspect is found 57 pieces, the overwhelming majority does not have correlation with the utility model, the packer that wherein can be used for well-flushing has only 4 pieces, but its structure and the utility model are also inequality, are weak correlation, its patent No. is respectively 92225013.8,90222723.8,89216875.7,87215056.
The purpose of this utility model just is to provide a kind of pumpingh well flushing packer, and it is installed in the oil well pump top, does not influence normal oil pumping, can realize oil pumping well pump cocycle hot-washing wax remover when needing wax removal.Thereby overcome the above-mentioned weak point of prior art effectively.
Above-mentioned purpose of the present utility model is realized by following technical proposals:
Its overall structure is made up of well washing apparatus assembly and packer assembly.The well washing apparatus assembly is last, and the packer assembly is following.The well washing apparatus assembly is made up of well-flushing piston, spring, well-flushing cover, inner central tube, exterior central tube, top connection and sealing ring.Well-flushing piston and the spring toroidal cavity between inner central tube and well-flushing cover.All there is two pass " O " RunddichtringO on the inside and outside surface of well-flushing piston.Exterior central tube is positioned at well-flushing piston below, and the lower end is overlapped with being threaded with well-flushing in the upper end, and the lower end links to each other with transition joint.Top connection is positioned at the inner central tube upper end and with being threaded, top connection and well-flushing set upper side adopt unthreaded hole to be sealed and matched.The packer assembly by inner central tube, exterior central tube, cartridge, spacer ring, transition joint, lock tube, cylinder sleeve, separate big envelope, piston joint, upper piston, lower piston, lower contact and sealing ring and form.The upper end of piston joint is conciliate big envelope with inner central tube respectively by internal and external screw thread and is connected.Lower piston, upper piston, cylinder sleeve be from bottom to top successively mutually with being threaded, and be positioned at the skin of piston joint.The internal thread of lower contact upper end is connected with the external screw thread of piston joint lower end.Between lower contact cylindrical and the lower piston, down live base with live between the basic joint cylindrical, between upper piston and the piston joint cylindrical, between piston joint and the inner central tube lower end cylindrical, two pass " O " RunddichtringO is arranged all.Transition joint upper end internal thread, lower end external screw thread are connected with exterior central tube, lock tube respectively.Exterior central tube cylindrical place, cylinder sleeve top dress cartridge, cartridge has more piece and separates with spacer ring.Inner central tube upper top and middle and upper part, well-flushing cover bottom, piston joint middle part and five places, bottom, each uniform 4～6 inlet opening radially.
The internal diameter of above-mentioned inner central tube and top connection, lower contact, piston joint all equates, is 59～62 millimeters, and the following well tool of pumpingh well can pass through smoothly.
Above-mentioned well-flushing piston all has two pass " O " RunddichtringO groove for short tubular, lower end is conical on its inside and outside circle.
Above-mentioned lock tube Lower Half wall is thin and internal thread is arranged, and several roads serrate slot is arranged on first half wall thickness and the cylindrical.
On the circle several roads serrate slot is arranged in the above-mentioned cylinder sleeve middle and upper part, match with serrate slot on the lock tube cylindrical.
The above-mentioned big envelope of separating is short thin-wall tubular, and there is internal thread the lower end, and upper port has interior chamfering.
According to the pumpingh well flushing packer that the manufacturing of said structure feature assembles, relatively simple for structure, seat envelope and deblocking are all very convenient, and alignment error is less.It is installed in oil pumping well pump upper end, does not influence normal oil pumping, can also realize pumpingh well circulation hot-washing wax remover, and it is few to have a hot scouring water, hot washing lotion is polluted reservoir not, and advantages such as not kill-job can also prevent that the lawless person is from the tubing and casing stolen.
Accompanying drawing is that overall structure of the present utility model is partly cutd open schematic diagram.
In conjunction with the accompanying drawings embodiment is described below:
Among the figure, the 1st, top connection, the 2,5,15,17,18,20, the 21st, two pass " O " RunddichtringO, the 3rd, spring, the 4th, well-flushing cover, the 6th, well-flushing piston, the 7th, inner central tube, the 8th, exterior central tube, the 9th, cartridge, the 10th, spacer ring, the 11st, transition joint, the 12nd, lock tube, the 13rd, cylinder sleeve, the 14th, separate big envelope, the 16th, piston joint, the 19th, upper piston, the 22nd, lower piston, the 23rd, lower contact.A, B, C, D, E are inlet openings.
With this packer be connected in the pumpingh well oil well pump above, below the oil well paraffinication point.Accompanying drawing is depicted as not seat envelope state.Its top connection 1 all is connected with oil pipe with lower contact 23.59～62 millimeters of the internal diameters of inner central tube 7, the oil well pump piston can pass through smoothly.If the oil pipe external diameter is 76 millimeters, casing inner diameter is 120 millimeters, and the external diameter of this packer then is 114 millimeters.The ring cavity gap then is 3 millimeters between packer and the sleeve pipe.
When this packer needs the seat envelope in well, in oil pipe, beat 5MPa left and right sides press water from well head.6 pressure that are subjected to from the water under high pressure of inlet opening A, C of well-flushing piston make well-flushing piston 6 move down into the bottom of well-flushing cover 4, and B blocks with its inlet opening, seals up the inside and outside passage of oil pipe.Meanwhile, the water under high pressure of 5MPa also enters upper and lower inlet opening D, the E of piston joint 16, enters the inner chamber of upper and lower piston 19,22, promotes upper and lower piston and moves up, make cylinder sleeve 13 upwards compression seal packing element 9 outwards dilate, block the ring cavity between packer and the sleeve pipe.The serrate slot position of cylinder sleeve 13 is stuck on the serrate slot of lock tube 12 simultaneously, and cylinder sleeve 13 is lockable and can not glides, and prevents cartridge 9 resilience deblockings, thereby realizes the seat envelope.
When pumpingh well needs hot-washing wax remover, from well head to oil, the sleeve pipe ring cavity squeezes into hot water, 9 of cartridge with hot water block can not continue descending.Band presses hot water to enter packer from the inlet opening B of well-flushing cover 4, and the pressure that promotion well-flushing piston 6 overcomes spring 3 moves up.The band setting-out enters packer inner chamber and oil pipe from the inlet opening A of inner central tube 7 again.Hot water is assembled tube inner wall between sucker rod wax melts and discharges outside the well with well liquid, thereby realizes hot-washing wax remover.
When this packer needs deblocking, upwards carry oil pipe at well head, drive top connection 1 and inner central tube 7 and move up.Because cartridge 9 has certain frictional force between swelling state and sleeve pipe, so cartridge 9, cylinder sleeve 13 do not move up with inner central tube 7, and the big envelope 14 of separating of piston joint 16 and upper end thereof moves up with inner central tube 7.Be up to certain altitude when separating big envelope 14, then oppress the serrate slot position radial contraction of lock tube 12,13 of cylinder sleeves are released descending, and 9 radial contraction of cartridge reset, thereby realize packer deblocking, i.e. state shown in the accompanying drawing.
Claims (6)
1. pumpingh well flushing packer, its overall structure is made up of well washing apparatus assembly and packer assembly, it is characterized in that the well washing apparatus assembly is last, the packer assembly is following, the well washing apparatus assembly is by the well-flushing piston, spring, the well-flushing cover, inner central tube, exterior central tube, top connection and sealing ring are formed, well-flushing piston and spring be toroidal cavity between inner central tube and well-flushing cover, in the well-flushing piston, external surface all has two pass " O " RunddichtringO, exterior central tube is positioned at well-flushing piston below, the lower end is overlapped with being threaded with well-flushing in the upper end, the lower end links to each other with transition joint, top connection is arranged in the pipe upper end and with being threaded, top connection and well-flushing set upper side adopt unthreaded hole to be sealed and matched; The packer assembly is by inner central tube, exterior central tube, cartridge, spacer ring, transition joint, lock tube, cylinder sleeve, separate big envelope, piston joint, upper piston, lower piston, lower contact and sealing ring are formed, the upper end of piston joint is by interior, external screw thread is conciliate big envelope with inner central tube respectively and is connected, lower piston, upper piston, cylinder sleeve is from bottom to top successively mutually with being threaded, and be positioned at the skin of piston joint, the internal thread of lower contact upper end is connected with the external screw thread of piston joint lower end, between lower contact cylindrical and the lower piston, between lower piston and the piston joint cylindrical, between upper piston and the piston joint cylindrical, between piston joint and the inner central tube lower end cylindrical, two pass " O " RunddichtringO is all arranged, transition joint upper end internal thread, the lower end external screw thread, respectively with exterior central tube, lock tube connects, exterior central tube cylindrical place, cylinder sleeve top dress cartridge, cartridge has more piece and separates with spacer ring, inner central tube upper top and middle and upper part, well-flushing cover bottom, piston joint middle part and five places, bottom, each uniform 4～6 inlet opening radially.
2. pumpingh well flushing packer according to claim 1 is characterized in that the internal diameter of inner central tube and top connection, lower contact, piston joint equates, is 59～62 millimeters.
3. pumpingh well flushing packer according to claim 1 is characterized in that the well-flushing piston is short tubular, and the lower end is conical, and two pass " O " type seal groove is all arranged on its inside and outside circle.
4. pumpingh well flushing packer according to claim 1 is characterized in that lock tube Lower Half wall is thin and internal thread is arranged, and several roads serrate slot is arranged on first half wall thickness and the cylindrical.
5. pumpingh well flushing packer according to claim 1 is characterized in that in the cylinder sleeve middle and upper part on the circle several roads serrate slot being arranged, and matches with serrate slot on the lock tube cylindrical.
6. pumpingh well flushing packer according to claim 1 is characterized in that separating big envelope and is short thin-wall tubular, and there is internal thread the lower end, and upper port has interior chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220117 CN2329761Y (en) | 1998-01-19 | 1998-01-19 | Pumping well flushing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220117 CN2329761Y (en) | 1998-01-19 | 1998-01-19 | Pumping well flushing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329761Y true CN2329761Y (en) | 1999-07-21 |
Family
ID=33971979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98220117 Expired - Fee Related CN2329761Y (en) | 1998-01-19 | 1998-01-19 | Pumping well flushing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329761Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418492A (en) * | 2011-11-02 | 2012-04-18 | 中国石油集团渤海钻探工程有限公司 | Tie-back plug-in sealing device for horizontal well fracturing |
| CN105114027A (en) * | 2015-08-06 | 2015-12-02 | 东北石油大学 | Flexible self-sealed anti-humeral-protrusion compression packer |
| CN106593346A (en) * | 2016-12-26 | 2017-04-26 | 中国石油天然气股份有限公司 | Chemical de-blocking compression slip fracturing packer |
| CN108643872A (en) * | 2018-07-05 | 2018-10-12 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
| RU2802635C1 (en) * | 2022-12-12 | 2023-08-30 | Общество С Ограниченной Ответственностью "Симойл Текнолоджис" | Packer with a four-section hydraulic setting chamber |
-
1998
- 1998-01-19 CN CN 98220117 patent/CN2329761Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418492A (en) * | 2011-11-02 | 2012-04-18 | 中国石油集团渤海钻探工程有限公司 | Tie-back plug-in sealing device for horizontal well fracturing |
| CN105114027A (en) * | 2015-08-06 | 2015-12-02 | 东北石油大学 | Flexible self-sealed anti-humeral-protrusion compression packer |
| CN105114027B (en) * | 2015-08-06 | 2018-01-05 | 东北石油大学 | A kind of anti-shoulder compression packer of flexible self sealss |
| CN106593346A (en) * | 2016-12-26 | 2017-04-26 | 中国石油天然气股份有限公司 | Chemical de-blocking compression slip fracturing packer |
| CN108643872A (en) * | 2018-07-05 | 2018-10-12 | 江苏航天鸿鹏数控机械有限公司 | A kind of heavy oil wells pumping wax-proofing apparatus |
| CN108643872B (en) * | 2018-07-05 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Viscous crude well swabbing wax control device |
| RU2802635C1 (en) * | 2022-12-12 | 2023-08-30 | Общество С Ограниченной Ответственностью "Симойл Текнолоджис" | Packer with a four-section hydraulic setting chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |