CN2434447Y - Hollow rod sand sucking and oil extracting appts - Google Patents
Hollow rod sand sucking and oil extracting appts Download PDFInfo
- Publication number
- CN2434447Y CN2434447Y CN 00211207 CN00211207U CN2434447Y CN 2434447 Y CN2434447 Y CN 2434447Y CN 00211207 CN00211207 CN 00211207 CN 00211207 U CN00211207 U CN 00211207U CN 2434447 Y CN2434447 Y CN 2434447Y
- Authority
- CN
- China
- Prior art keywords
- oil
- sand
- utility
- hollow stem
- hollow
- 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
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a downhole tool used on an oil well at an oil field, particularly a hollow rod sand sucking and oil extracting device which is composed of a hose 1, a well mouth 2, protective liquid 3, a cannula 4, an oil tube 5, a hollow rod 6, an upper traveling valve 7, a plunger 8, a lower traveling valve 9, a fixing valve 10 and a sieve tube. Because the hollow rod is used for conveying crude oil, the utility model realizes sand suction and oil extraction by the hollow rod. The utility model solves the problems that sand is deposited at the upper end of a plunger of a conventional pump, and the sand blocks the pump. The length of a hollow sucker rod is smaller than that of an ordinary hollow sucker rod, which can enlarge the effective stroke of a pump. The utility model can conventionally wash wells until sand at the fixing valve in the pump barrel is washed cleanly. The utility model avoids backwashing wells, and avoids the possibility that stratums are polluted. The hollow rod sand sucking and oil extracting device has the advantages of simple structural design and low cost, and is suitable for field use.
Description
The utility model relates to the downhole tool that uses on a kind of oilfield, and particularly a kind of hollow stem is taken out the sand extracting device of oil.
Usually oil well in process of production, along with the prolongation of time, oil stream constantly washes away the rock stratum when oil reservoir flows into pit shaft, with the structural damage of rock stratum, sand grains is brought in the well.Form sand in wherein a part of sand deposition into wells and bury or sand plug, increased oil flow resistance, reduce oil well output, sand post height can reach more than hundred meters in the sand plug severe patient well, and oil well is blocked, and oil well is stopped production; Another part sand is carried the emersion pit shaft by oily stream, and the meeting friction device blocks oil production equipment in the wells such as deep-well pump piston, valve in uphill process.
The purpose of this utility model is to provide a kind of hollow stem to take out the sand extracting device of oil, and it can solve effectively, and crude oil medium sand grain sinks in aspiration procedure, conventional pumps plunger upper end sand setting holddown problem.
The purpose of this utility model is to realize like this; it is by flexible pipe (1); well head (2); protection liquid (3); sleeve pipe (4); oil pipe (5); hollow stem (6); last travelling valve (7); plunger (8); following travelling valve (9); standing valve (10) and screen casing (11) are formed; flexible pipe (1) is connected with hollow stem (6); well head (2) seat is on sleeve pipe (4); be connected on the oil pipe (5) on the well head (2); be connected to screen casing (11) under it; there is standing valve (10) centre; in the inside of oil pipe (5) hollow stem (6) is arranged; the plug (8) of taking over a job under the hollow stem (6); in the piston (8) is hollow; it has last travelling valve (7) up and down respectively; following travelling valve (9) has protection liquid (3) between hollow stem (6) and oil pipe (5).
When work; hollow stem drives the upper and lower to-and-fro motion of piston; by last travelling valve (7), down travelling valve (9), standing valve (10) opening and closing; crude oil is transported to flexible pipe until ground through hollow rod, and because of the hollow stem actual internal area is little, the crude oil rate of climb is fast; be enough to carry sand grains; solved the problem of conventional pumps plunger upper end sand setting holddown, protection liquid can prevent that crude oil from entering into the top of piston by the gap of piston and pump barrel, causes crude oil sand setting holddown.
The utility model is owing to adopted hollow stem to take out the sand oil recovery, particularly for sand production, especially the fine silt oil well influences the oil well pump proper functioning, is good solution, it has adopted with hollow stem oil transportation mechanism, has solved the problem of conventional pumps plunger upper end sand setting holddown.The common sucker rod of hollow rod ratio of elongation is little, can strengthen the effective stroke of pump.Can carry out positive well-flushing, sand standing valve place cleans up in pump barrel.Avoid anti-flushing well, pollute the possibility on stratum.This hollow stem is taken out the sand extracting device of oil, and its structural design is simple, and is with low cost, is well suited for The field.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in FIG., the utility model is made up of flexible pipe 1, well head 2, protection liquid 3, sleeve pipe 4, oil pipe 5, hollow stem 6, last travelling valve 7, plunger 8, following travelling valve 9, standing valve 10 and screen casing 11.Flexible pipe 1 adopts sebific duct to make, and with hollow stem 6 screwed connections, oil pipe 5 is articulated on the well head 2; it is the common sand control screen of screen casing 11 employings down; have standing valve 10, piston 8 that last travelling valve 7, following travelling valve 9 are arranged respectively up and down in the middle of the oil pipe, protection liquid 3 adopts ordinary crude oils or water.
Claims (2)
1; a kind of hollow stem is taken out the sand extracting device of oil; it is by flexible pipe (1); well head (2); protection liquid (3); sleeve pipe (4); oil pipe (5); hollow stem (6); last travelling valve (7); plunger (8); following travelling valve (9); standing valve (10) and screen casing (11) are formed; it is characterized in that: flexible pipe (1) is connected with hollow stem (6); well head (2) seat is on sleeve pipe (4); be connected on the oil pipe (5) on the well head (2); be connected to screen casing (11) under it; there is standing valve (10) centre; in the inside of oil pipe (5) hollow stem (6) is arranged; the plug (8) of taking over a job under the hollow stem (6); in the piston (8) is hollow; it has last travelling valve (7) up and down respectively; following travelling valve (9) has protection liquid (3) between hollow stem (6) and oil pipe (5).
2, hollow stem according to claim 1 is taken out the sand extracting device of oil, it is characterized in that: flexible pipe (1) adopts sebific duct to make, and with hollow stem (6) screwed connection, oil pipe (5) is articulated on the well head (2), protection liquid (3) adopts ordinary crude oils or water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00211207 CN2434447Y (en) | 2000-03-21 | 2000-03-21 | Hollow rod sand sucking and oil extracting appts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00211207 CN2434447Y (en) | 2000-03-21 | 2000-03-21 | Hollow rod sand sucking and oil extracting appts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434447Y true CN2434447Y (en) | 2001-06-13 |
Family
ID=33577945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00211207 Expired - Fee Related CN2434447Y (en) | 2000-03-21 | 2000-03-21 | Hollow rod sand sucking and oil extracting appts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434447Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334717A (en) * | 2013-06-08 | 2013-10-02 | 中国石油天然气股份有限公司 | Oil pumping device for oil field rod pumped well |
| CN106869867A (en) * | 2017-04-10 | 2017-06-20 | 淄博东华石油技术有限公司 | Washing well coal bed gas extraction equipment |
-
2000
- 2000-03-21 CN CN 00211207 patent/CN2434447Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334717A (en) * | 2013-06-08 | 2013-10-02 | 中国石油天然气股份有限公司 | Oil pumping device for oil field rod pumped well |
| CN106869867A (en) * | 2017-04-10 | 2017-06-20 | 淄博东华石油技术有限公司 | Washing well coal bed gas extraction equipment |
| CN106869867B (en) * | 2017-04-10 | 2023-03-03 | 淄博东华石油技术有限公司 | Washable well coal bed gas drainage and production equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094586B (en) | Application method of ground sand washing device for horizontal well | |
| CN101078336A (en) | Low-pressure well negative pressure continuous sand washing technique | |
| CN201705249U (en) | Continuous jet blockage-removing string for horizontal wells | |
| CN202157790U (en) | Oil pumping device without kill operation | |
| CN101250990B (en) | Oil well horizontal sand-pumping device as well as sand-pumping method thereof | |
| CN107676051B (en) | Coal bed gas well annular pressurizing coal powder fishing device and method | |
| CN109630053A (en) | A kind of novel shaft negative pressure is salvaged and cleaning tool | |
| CN2434447Y (en) | Hollow rod sand sucking and oil extracting appts | |
| CN210317702U (en) | Positive-washing paraffin removal anti-blocking oil well pump | |
| CN2479202Y (en) | Super-long stroke downhole bailer | |
| CN208221051U (en) | Sand-preventing pump and sand control pipe | |
| CN203879424U (en) | Novel continuous sand removal device for oil and water well | |
| CN1975098A (en) | Self-suction low-pressure absorption well sand flushing technology | |
| CN110284857A (en) | A kind of fluid power extracting device of oil and its bidirectional shunt device | |
| CN2486734Y (en) | Double sand holding bucket downhole bailing tub | |
| CN2538941Y (en) | Hydraulic automatic pressurizing pump | |
| CN204041041U (en) | Oil well increases liquid device | |
| CN2809269Y (en) | Junk prevention device for oil well pump | |
| CN2489114Y (en) | Oil pipe pumping type well pump | |
| CN109519154A (en) | Sediment cleaning tooling and method for cleaning in a kind of horizontal well sieve tube | |
| CN207437034U (en) | Working fluid injection device based on pumping unit | |
| CN205047186U (en) | Kill -job device is exempted from to wash by pole pump | |
| CN101250993A (en) | Horizontal oil well sand-pumping device as well as sand-pumping method thereof | |
| CN2637703Y (en) | Oil pumping sand extraction integrated process tubular column | |
| CN112824641B (en) | Integrated oil production process pipe column |
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 |