CN201284640Y - Oil tube cleaner for oil-field flooding well - Google Patents
Oil tube cleaner for oil-field flooding well Download PDFInfo
- Publication number
- CN201284640Y CN201284640Y CNU2008202254144U CN200820225414U CN201284640Y CN 201284640 Y CN201284640 Y CN 201284640Y CN U2008202254144 U CNU2008202254144 U CN U2008202254144U CN 200820225414 U CN200820225414 U CN 200820225414U CN 201284640 Y CN201284640 Y CN 201284640Y
- Authority
- CN
- China
- Prior art keywords
- scale
- joint
- universal
- thread
- scale removal
- 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
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Abstract
The utility model provides a scale-remover used for the oil pipe of an oilfield water injection well, consisting of a joint, a universal connector, a universal joint and a scale-removing rod. The scale-remover is characterized in that the scale-removing rod is in a conical shape, the upper part thereof is thick and the lower part thereof is thin; the diameter of the upper end is 57.5mm and the diameter of the lower end is 38mm; the taper of the scale-removing rod is 1.5 degrees; the circumference of the middle part and the upper part of the scale-removing rod is provided with a spiral water flowing guide trough; the bulge of the middle guide trough is provided with a rhombus knurl; the convex surface of the upper guide trough is provided with a tungsten steel cutter block; the middle part of the upper end of the scale-removing rod is provided with a box thread which is connected with the thread at the lower part of the universal joint; furthermore, a back cap is provided; the universal joint is sheathed in the universal connection head which is connected with the joint by the thread; and the joint is connected with the connecting pipe column of the scale-remover by the thread. The utility model has convenient use and quick scale-removal, drains the cleaned scale out of the well following the washing liquid, has obvious scale-removing effect, ensures the execution of the water injection measures, reduces the time of workover and the time for replacing the oil pipe, and saves the workover cost.
Description
One, technical field
The utility model relates to a kind of water injection well in oil fields oil pipe stain eliminating device.
Two, background technology
Along with oil field exploitation for many years, in extraction oily gentle moisture mostly (being called associated water, light bittern), wherein be mixed with oil component, iron, calcium, sodium, magnesium ion and all kinds of acid ions etc.By the analysis of water index is followed the tracks of, test analysis as can be seen in conjunction with the output aquation, the main fouling of the well borehole wall is divided into organic deposition (greasy dirt), FeS dirt, CaCO3 dirt etc.Can not reach the water quality standard of injecting the water requirement fully because the oil reservoir associated water is handled, scale problems is more and more heavier.Well borehole wall dirt has 4 points to the influence of water filling: the one, can't allocate the well of test failure, and cause this well to finish and do not become the injection allocation water yield, directly influence flood effectiveness; The 2nd, well head emptying discharge capacity is too low, does not reach the discharge capacity of well-flushing requirement, has increased the well-flushing difficulty; The 3rd, the part well is not allocated leeway, has to be doomed injection allocation in fact, influence allotment effect; The 4th, reduced Water Injection Efficiency, increased energy consumption.The present method that adopts: the one, chemical cleaning, antiscale, but downhole tools such as oil pipe and packer are caused damage being both also of scale removal.The 2nd, adopt the scale removal of fluted drill machinery, but invalid to severe fouling well.The 3rd, the individual well operation pipe of changing oil is owing to the cost reason can not fundamentally solve the problem of fouling.How to use the reasonable process technology to carry out the scale removal of the well borehole wall, must be to its problem of conscientiously inquiring into.
Three, summary of the invention
The purpose of this utility model provides a kind of water injection well in oil fields oil pipe stain eliminating device, and what solve above-mentioned prior art existence injures tubing string, descale effect difference and the high problem of cost to oil pipe stain eliminating.
The technical solution of the utility model realizes in the following manner:
The utility model is by joint, the Universal-head connector, Universal-head and scale removal bar are formed, it is characterized in that the scale removal bar is made as taper shape, upper coarse and lower fine, upper end diameter is 38mm for the 57.5mm lower end diameter, tapering is 1.5 degree, be provided with spirality Waterflow-guiding groove at the middle part of scale removal bar and the periphery on top, on the boss of middle part guide channel, be provided with the prismatic annular knurl, on the convex surface of upper guide approaching channel, be provided with wolfram steel cutter piece, be provided with box thread, be connected with the Universal-head lower thread in scale removal bar upper center, and be provided with back of the body cap, Universal-head is enclosed within the universal joint, and universal joint is connected with joint screw thread, and joint is connected with the tube connector male screw of descaler.
The utility model is easy to use, scale removal is quick, and the dirt of disposing is discharged outside the well with flushing fluid, and descale effect is remarkable, has guaranteed the enforcement of water injection method, has reduced the number of times of well workover number of times and replacing oil pipe, has saved workover cost.
Four, description of drawings
Accompanying drawing is a kind of structural representation of the present utility model
1-joint 2-Universal-head connector 3-Universal-head 4-scale removal bar among the figure
Five, the specific embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model is by joint 1, Universal-head connector 2, Universal-head 3 and scale removal bar are formed, it is characterized in that the scale removal bar is made as taper shape, upper coarse and lower fine, upper end diameter is 38mm for the 57.5mm lower end diameter, tapering is 1.5 degree, be provided with spirality Waterflow-guiding groove at the middle part of scale removal bar and the periphery on top, on the boss of middle part guide channel, be provided with the prismatic annular knurl, on the convex surface of upper guide approaching channel, be provided with wolfram steel cutter piece, be provided with box thread, be connected with the Universal-head lower thread in scale removal bar upper center, and be provided with back of the body cap, Universal-head is enclosed within the universal joint, and universal joint is connected with joint screw thread, and joint is connected with the tube connector male screw of descaler.
When using the utility model, descaler is connected on the tube connector of descaler, carry descaler with working rig and impact dirt on the oil pipe up and down, the prismatic annular knurl of descaler bottom washes out or hits pine to the position of dirt projection, the wolfram steel cutter piece on top machines away the dirt on the tubing wall, because the top Universal-head connects and the setting of guide channel, descaler can rotate scale removal, has significantly improved descale effect and scale removal speed.
Claims (1)
1, a kind of water injection well in oil fields oil pipe stain eliminating device, by joint, the Universal-head connector, Universal-head and scale removal bar are formed, it is characterized in that the scale removal bar is made as taper shape, upper coarse and lower fine, upper end diameter is 38mm for the 57.5mm lower end diameter, tapering is 1.5 degree, be provided with spirality Waterflow-guiding groove at the middle part of scale removal bar and the periphery on top, on the boss of middle part guide channel, be provided with the prismatic annular knurl, on the convex surface of upper guide approaching channel, be provided with wolfram steel cutter piece, be provided with box thread in scale removal bar upper center, be connected with the Universal-head lower thread, and be provided with back of the body cap, Universal-head is enclosed within the universal joint, universal joint is connected with joint screw thread, and joint is connected with the tube connector male screw of descaler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202254144U CN201284640Y (en) | 2008-11-07 | 2008-11-07 | Oil tube cleaner for oil-field flooding well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202254144U CN201284640Y (en) | 2008-11-07 | 2008-11-07 | Oil tube cleaner for oil-field flooding well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284640Y true CN201284640Y (en) | 2009-08-05 |
Family
ID=40949625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202254144U Expired - Fee Related CN201284640Y (en) | 2008-11-07 | 2008-11-07 | Oil tube cleaner for oil-field flooding well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284640Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727106A (en) * | 2014-01-05 | 2014-04-16 | 陈学红 | Symmetric type threaded connection rod |
-
2008
- 2008-11-07 CN CNU2008202254144U patent/CN201284640Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727106A (en) * | 2014-01-05 | 2014-04-16 | 陈学红 | Symmetric type threaded connection rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20101107 |