CN2603848Y - Filtering pipe device for stainless steel plate net barrel - Google Patents
Filtering pipe device for stainless steel plate net barrel Download PDFInfo
- Publication number
- CN2603848Y CN2603848Y CN 02280664 CN02280664U CN2603848Y CN 2603848 Y CN2603848 Y CN 2603848Y CN 02280664 CN02280664 CN 02280664 CN 02280664 U CN02280664 U CN 02280664U CN 2603848 Y CN2603848 Y CN 2603848Y
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- CN
- China
- Prior art keywords
- filter pipe
- steel plate
- tube
- stainless steel
- filter
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- Expired - Fee Related
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Abstract
A stainless steel plate net cylinder filter tube device is a filter equipment which is installed on the lower pumping well tube of pumping unit in oilfield for filtering petroleum and scavenging sands of petroleum, the filter net thereof is a net plate with some micro through-holes by stainless steel thin plate, then the net plate is roll-formed to a round cylinder, the joint is welded, that is the steel plate net cylinder. A definite length round steel pipe with through-holes(filter pipe) is arranged in the steel plate net cylinder, the steel plate net cylinder and the filter pipe are divided by a steel wire which is rounded on the steel pipe surface by certain pitch, the space between the steel pipe through-holes and the pitch is the petroleum circulation space, two end-surfaces of the steel plate net cylinder are compacted by L-shaped grooves of the ring nuts of two ends of the filter pipe, therefore, the stainless steel plate net cylinder filter tube device is assembled, the surface of the stainless steel plate net cylinder filter tube is provided with smoothness, stainlessness, high temperature resistance and large compressive strength, the net cylinder is easy to clean and replace, when the pumping unit is pumping petroleum, sands in the petroleum of underground petroleum layer are filtered out of the steel plate net cylinder, and are difficult to enter the pumping well tube.
Description
Technical field of the present utility model: be to belong to the filter that sand grains in the oil is infiltrated in the removing of oil pick-up tube end under the used rod-pumped well in a kind of oil field installing, stainless steel plate mesh tube filter pipe device particularly, have smooth surface, non-corrosive, high temperature resistant, compressive strength big, make things convenient for cleaning and replacement, durable.
Background technology of the present utility model is: known oil-field oil pumper is drilled to several through holes in oil pick-up tube end, down-hole, curl on the external surface of through hole with the braided metal net, controlling sand grains and oil enters in the oil pumping well casing synchronously, in actual oil pumping process, stop production because the braided metal network capacity is yielding, leak sand, oil pumping often takes place, increase the number of times of replacing the sand net, cause the sand network loss to lose, oil pumping yield reduces, and causes economic loss for oil field enterprise.
Content of the present utility model: the stainless steel plate mesh tube filter pipe device that provides the oil pumping well casing lower end installation of the employed oil pumper in a kind of oil field, this device can separate the sand grains in the oil, do not allow sand grains enter in the oil well pipe, simultaneously, the stainless steel plate mesh tube is not fragile, smooth surface, non-corrosive, high temperature resistant, compressive strength big, be convenient to replace and clean, it is lasting to use.
The technical scheme that the utility model adopted is: in stainless steel plate mesh tube filter pipe, formed with filter pipe, collar nut, expanded metal lath tube, expanded metals support.Filter pipe is that the two ends with the round steel pipe of certain-length are provided with external screw thread, this screw thread is to be screwed into manufacturing to the center of steel pipe for collar nut respectively from the two ends of pipe, remove the size that steel pipe two ends external screw thread is occupied, there are several through holes that is drilled to of spacing the middle part of steel pipe, these through holes are that the down-hole oil enters the opening in the oil pick-up tube, and this steel pipe claims filter pipe.Collar nut is a circular internal threaded nut, and circle is provided with L shaped groove in the nut, and this nut claims collar nut.The expanded metal lath tube is an expanded metals of making several micro-through-holes with stainless sheet steel, rolls into circular cylinder, welds in the joint, and this reel claims the expanded metal lath tube.The expanded metals support is to curl and be welded on by a constant pitch on the external surface at filter pipe through hole position with a steel wire, and this steel wire claims the expanded metals support.The expanded metals support is the isolation bracing frame between filter pipe and the expanded metal lath tube, and the pitch space of expanded metals support is the oil free air space.Advance in the expanded metal lath tube with the filter pipe string, collar nut with the filter pipe two ends is screwed into to the center of filter pipe respectively again, simultaneously, reaches the L shaped groove of collar nut one side, correspondence is packed into and compressed expanded metal lath tube both ends of the surface is purpose, forms a columnar stainless steel plate mesh tube filter pipe device.This filter is installed in the oil pumping well casing lower end in oil field, and when oil pumping machine oil pumping, the sand grains that oil contained in the underground petroleum layer is filtered in expanded metal lath tube outside, and sand grains is difficult to enter in the oil pumping well casing.
Owing to adopt such scheme, utilize the made expanded metals of stainless sheet steel, roll into tube, be assembled into the filter pipe device, be installed in oil pumping well casing lower end under the oil well, the control sand grains enters the stainless steel plate mesh tube filter pipe device in the oil well pipe, have smooth surface, non-corrosive, high temperature resistant, compressive strength big, conveniently clean and replace durable.
Description of drawings of the present utility model:
Fig. 1 is the vertical semi-section schematic diagram of structure of the utility model embodiment.
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment of the present utility model: the following Fig. 1 of consulting and Fig. 2 are elaborated.
In Fig. 1 and Fig. 2, stainless steel plate mesh tube filter pipe device is formed with filter pipe 1, collar nut 2, expanded metal lath tube 3, expanded metals support 4.Filter pipe (1) is that the two ends with the round steel pipe of certain-length are provided with external screw thread, this screw thread is to be screwed into manufacturing to the center of steel pipe for collar nut (2) respectively from the two ends of pipe, remove the size that steel pipe two ends external screw thread is occupied, there are several through holes that is drilled to of distance the steel pipe middle part, these through holes are that the down-hole oil enters the opening in the oil pumping well casing, and this steel pipe claims filter pipe (1).Collar nut (2) is a nut of circular internal thread, and circle is provided with L shaped groove, this nut in the nut, claims collar nut (2).Expanded metal lath tube (3) is an expanded metals of making several micro-through-holes with stainless sheet steel, rolls into circular cylinder, welds in the joint, and this reel claims expanded metal lath tube (3).Expanded metals support (4) is to curl and be welded on by a constant pitch on the external surface at filter pipe mesh position with a steel wire, and this steel wire claims expanded metals support (4).The pitch space of expanded metals support (4) is the oil flow space.Advance in the expanded metal lath tube (3) with filter pipe (1) string, be screwed into to the center of filter pipe respectively at collar nut (2) with filter pipe (1) two ends, simultaneously, the L shaped groove correspondence that reaches collar nut (2) one sides is packed into and compressed expanded metal lath tube (3) both ends of the surface is purpose, so, be assembled into a columnar stainless steel plate mesh tube filter pipe device.This filter is installed in the oil pumping well casing lower end in oil field, oil enters into the pitch space of expanded metals support (4) by the micro-through-hole of expanded metal lath tube (3), oil enters in the oil pumping well casing from the pitch space through the through hole of oily filter pipe (1) again, so the sand grains of infiltrating in the oil is filtered in the outside of expanded metal lath tube (3), sand grains is difficult to enter oil pumping well casing inside.
Claims (5)
1, stainless steel plate mesh tube filter pipe device is mounted in oil pumping well casing lower end filtration oil under the oil well, removes the filter pipe device of sand grains, and it is formed with filter pipe (1), collar nut (2), expanded metal lath tube (3), expanded metals support (4).It is characterized in that filter pipe (1) is enclosed in the expanded metal lath tube (3), filter pipe (1) is isolated a space with expanded metal lath tube (3) with expanded metals support (4), filter pipe (1) two ends are provided with external screw thread, collar nut (2) is screwed into by (1) two ends of filter pipe respectively, expanded metal lath tube (3) biend is enclosed in the L shaped groove of collar nut (4) to compress.
2, stainless steel plate mesh tube filter pipe device according to claim 1 is characterized in that filter pipe (1) two ends are provided with external screw thread, and the middle part is provided with several through holes, and filter pipe (1) is the round steel pipe of certain-length.
3, stainless steel plate mesh tube filter pipe device according to claim 1 is characterized in that collar nut (2) internal thread one side is provided with L shaped groove, and collar nut (2) is a round nut.
4, stainless steel plate mesh tube filter pipe device according to claim 1 is characterized in that expanded metal lath tube (3) is several micro-through-hole web plates made from thin corrosion resistant plate, rolls into circular cylinder, welds in the joint.
5, stainless steel plate mesh tube filter pipe device according to claim 1 is characterized in that expanded metals support (4) is that a steel wire curls and is welded on the external surface of filter pipe middle part, as the bracing frame of isolating between filter pipe (1) and the expanded metal lath tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280664 CN2603848Y (en) | 2002-10-24 | 2002-10-24 | Filtering pipe device for stainless steel plate net barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280664 CN2603848Y (en) | 2002-10-24 | 2002-10-24 | Filtering pipe device for stainless steel plate net barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603848Y true CN2603848Y (en) | 2004-02-18 |
Family
ID=34150650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02280664 Expired - Fee Related CN2603848Y (en) | 2002-10-24 | 2002-10-24 | Filtering pipe device for stainless steel plate net barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603848Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298451A (en) * | 2015-10-09 | 2016-02-03 | 刘洋 | Oil well sand filtering device |
-
2002
- 2002-10-24 CN CN 02280664 patent/CN2603848Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298451A (en) * | 2015-10-09 | 2016-02-03 | 刘洋 | Oil well sand filtering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zheng Suhua Document name: Notification of Termination of Patent Right |
|
| 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 |