CN203808885U - Fixed type jet sand-flushing device - Google Patents
Fixed type jet sand-flushing device Download PDFInfo
- Publication number
- CN203808885U CN203808885U CN201420170381.3U CN201420170381U CN203808885U CN 203808885 U CN203808885 U CN 203808885U CN 201420170381 U CN201420170381 U CN 201420170381U CN 203808885 U CN203808885 U CN 203808885U
- Authority
- CN
- China
- Prior art keywords
- sand washing
- nozzle
- cylinder
- washing machine
- flushing device
- 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
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model pertains to the technical field of borehole operation in an oil field and concretely provides a fixed type jet sand-flushing device. The fixed type jet sand-flushing device comprises a body which is a cylinder with one end being a circular truncated cone. The center of the upper bottom surface of the circular truncated cone is provided with an axial nozzle. The side surface of the circular truncated cone is provided with oblique nozzles. The side surface of the cylinder is provided with lateral nozzles. An internal thread is arranged at a joint inside of the other end of the cylinder. Righting blocks are arranged along the edge outside of the other end of the cylinder. The fixed type jet sand-flushing device has following beneficial effects: the fixed type jet sand-flushing device is of an integral structure without other connecting and sealing structures besides the internal thread at the joint; service lifetime of the sand-flushing device is prolonged; the fixed type jet sand-flushing device is simple in structure and low in cost of production, maintenance and repair and is worth popularizing extensively; and a problem that a conventional sand-flushing device is reversed and upturned is effectively resolved.
Description
Technical field
The utility model belongs to oilfield downhole operation technical field, is specifically related to a kind of fixed jet flow sand washing machine.
Background technology
Sand washing operation is the important procedure in oil extraction in oil field, pressing crack construction.At present, the sand washing mode of straight well is still continued to use in the operation of domestic low pressure oil horizontal well sand washing, adopt blank tubing inverse circular sand washing adapter mode, and the impact force of this kind of sand washing mode is limited, pump into current mainly along pit shaft axially-movable, subdued along pit shaft impact force radially, cannot break up and take ground out of being deposited on the engineering sand of horizontal wellbore and reservoir sand.
And in order to solve Horizontal Well barrel dliameter to the problem a little less than impact force, at present horizontal well sand washing operation is adopted to rotating jet sand washing machine, because this sand washing machine can rely on power, rotate, can make the water (flow) direction pumping into change, thereby strengthen pit shaft impact force radially.
But the rotating jet sand washing machine adopting at present has following shortcoming:
(1) there is joint in existing rotating jet sand washing machine, how union and body are not connected the problem of sealing while all needing to solve rotation, and the solution of sealing problem reduces the sand washing machine cost in application life by paying, increased the manufacturing cost of this sand washing machine simultaneously, during use, also need standby certain seal, increased the cost of maintaining;
(2) existing rotating jet sand washing machine does not generally have reverse fixation preventing device, in rotating jet sand washing process, once this sand washing machine body is stuck, joint will be together with sand-flushing pipe column derotation back-off, increased tubing string thread off the risk of well;
(3) rotating jet sand washing machine need to provide rotary power, increases cost and presentation mode unreliable.
Utility model content
The purpose of this utility model be overcome existing rotating jet sand washing machine exist that cost of manufacture is high, maintenance expense is high, without the problem of anti-reverse mechanism.For this reason, the utility model provides a kind of fixed jet flow sand washing machine, comprise body, described body is cylinder, and cylinder one end is round platform, and the upper bottom surface center of described round platform is provided with axial nozzle, the side of round platform is provided with oblique nozzle, described cylindrical side is provided with side direction nozzle, and described cylinder other end inner contact place is provided with internal thread, and described cylinder other end outside is provided with wiper block along edge.
Above-mentioned oblique nozzle is being crossed on the mid point of any bus of round platform, and its quantity is 3-5, and is circumferentially uniformly distributed along round platform.
Above-mentioned side direction nozzle is 3-5, and its center, on same circle, and is circumferentially uniformly distributed along cylinder.
Above-mentioned oblique nozzle and side direction the nozzle separately disc at place, center are parallel, and oblique nozzle and side direction nozzle is staggered is uniformly distributed.
Above-mentioned oblique nozzle and side direction the nozzle separately disc at place, center are parallel, and oblique nozzle and side direction nozzle are uniformly distributed along 360 degree are staggered.
Above-mentioned wiper block and body are welded and fixed, and its quantity is 4-6, and is circumferentially uniformly distributed along cylinder.
Above-mentioned internal thread is standard 2
7/
8in oil pipe internal thread.
The beneficial effects of the utility model are that this fixed jet flow sand washing machine is an overall structure, except the internal thread of joint without other syndeton and hermetically-sealed construction, increased the application life of sand washing machine, simple in structure, cost of manufacture and maintenance expense are cheap, efficiently solve the problem of existing sand washing machine reversion back-off simultaneously, there is the value of spread.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fixed jet flow sand washing machine of the utility model.
Fig. 2 is the schematic side view of the fixed jet flow sand washing machine of the utility model.
Description of reference numerals: 1, body; 2, round platform; 3, axial nozzle; 4, oblique nozzle; 5, side direction nozzle; 6, internal thread; 7, wiper block.
The specific embodiment
Embodiment 1:
In order to overcome existing rotating jet sand washing machine, to exist cost of manufacture high, maintenance expense is high, problem without anti-reverse mechanism, the utility model provides a kind of fixed jet flow sand washing machine as depicted in figs. 1 and 2, comprise body 1, described body 1 is cylinder, cylinder one end is round platform 2, the upper bottom surface center of described round platform 2 is provided with axial nozzle 3, the side of round platform 2 is provided with oblique nozzle 4, described cylindrical side is provided with side direction nozzle 5, cylinder other end inner contact place is provided with internal thread 2, cylinder other end outside is provided with wiper block 7 along edge.
The upper surface of round platform 2 is as the lower surface of this sand washing machine body 1,1 axial nozzle 3 of the upper surface center arrangement of round platform 2, its central axis and round platform 2 central axes; Oblique nozzle 4 is being crossed on the mid point of any bus of round platform 2, and its quantity is 3-5, and along round platform 2, is circumferentially uniformly distributed the lateral vertical of the central axis of oblique nozzle 4 and round platform 2; Side direction nozzle 5 is 3-5, and its center, on same circle, and is circumferentially uniformly distributed along cylinder; Simultaneously, oblique nozzle 4 and side direction the nozzle 5 separately disc at place, center are parallel, and oblique nozzle 4 and side direction nozzle 5 interlock and are uniformly distributed, this structure makes in carrying out sand washing operation process, can not produce radially moment of torsion, guarantee that in sand washing operation, this jet flow sand washing machine does not rotate, thereby avoid the problem of sand washing machine derotation back-off.
And above-mentioned axial nozzle 3, oblique nozzle 4 are consistent with the diameter of side direction nozzle 5, its computational methods are as follows:
By document Rolovic R, Weng Xiaowei, Hill S, et al.An integrated system approach to wellbore cleanouts with coiled tubing[R] .SPE 89333,2004. can know, after pressure break the cementing power of the casting bed of horizontal well pit shaft deposition a little less than, when jet impact force is approximately 100N, can wash cementing casting bed open, the design formulas of jet impact force is as follows:
Wherein, F
jfor jet impact force, ρ
1flushing liquor viscosity, Q rinses discharge capacity, A is the nozzle gross area, for reaching the jet impact force of anticipation, determined flushing liquor viscosity and rinse discharge capacity condition under, just can obtain the gross area of all nozzles on instrument, then obtain the diameter of each nozzle.
In addition, on this jet flow sand washing machine body 1, be welded with 4-6 wiper block 7, and wiper block 7 is circumferentially uniformly distributed along cylinder other end outer ledge, it is placed in the middle that 7 pairs of sand washing machines of these wiper blocks play righting, guarantee that this sand washing machine is positioned in the middle of pit shaft, is convenient to spray sand washing.
This jet flow sand washing machine body 1 is processed by solid material integral body, except standard 2
7/
8beyond in oil pipe internal thread 6 can be connected with oil tube external thread, without other be threaded part, welding portion, in use without extra hermetically-sealed construction, increased sand washing machine application life, reduced cost of manufacture and maintenance expense., when this jet flow sand washing machine is used, fix meanwhile, without rotary power is additionally provided, reduce cost payout.
More than exemplifying is only to illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, within the every and same or analogous design of the utility model all belongs to protection scope of the present invention.
Claims (6)
1. a fixed jet flow sand washing machine, comprise body (1), it is characterized in that: described body (1) is cylinder, cylinder one end is round platform (2), the upper bottom surface center of described round platform (2) is provided with axial nozzle (3), the side of round platform (2) is provided with oblique nozzle (4), described cylindrical side is provided with side direction nozzle (5), described cylinder other end inner contact place is provided with internal thread (6), and outside is provided with wiper block (7) along edge.
2. fixed jet flow sand washing machine as claimed in claim 1, is characterized in that: described oblique nozzle (4) is being crossed on the mid point of any bus of round platform, and its quantity is 3-5, and is circumferentially uniformly distributed along round platform (3).
3. fixed jet flow sand washing machine as claimed in claim 1, is characterized in that: described side direction nozzle (5) is 3-5, and its center, on same circle, and is circumferentially uniformly distributed along cylinder (2).
4. fixed jet flow sand washing machine as claimed in claim 1, is characterized in that: described oblique nozzle (4) and side direction nozzle (5) the separately disc at place, center are parallel, and oblique nozzle (4) and side direction nozzle (5) is staggered is uniformly distributed.
5. fixed jet flow sand washing machine as claimed in claim 1, is characterized in that: described wiper block (7) is welded and fixed with body (1), and its quantity is 4-6, and is circumferentially uniformly distributed along cylinder.
6. fixed jet flow sand washing machine as claimed in claim 1, is characterized in that: described internal thread (6) is standard 2
7/
8in oil pipe internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170381.3U CN203808885U (en) | 2014-04-10 | 2014-04-10 | Fixed type jet sand-flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170381.3U CN203808885U (en) | 2014-04-10 | 2014-04-10 | Fixed type jet sand-flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808885U true CN203808885U (en) | 2014-09-03 |
Family
ID=51447658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420170381.3U Expired - Fee Related CN203808885U (en) | 2014-04-10 | 2014-04-10 | Fixed type jet sand-flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808885U (en) |
-
2014
- 2014-04-10 CN CN201420170381.3U patent/CN203808885U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207531545U (en) | A kind of buried automatic telescopic device for fetching water | |
| CN202882841U (en) | Pipe external packer capable of being self-expandable when encountering water or oil | |
| CN204225804U (en) | A kind of novel oil production well lost circulation prevention Flushing tubular column | |
| CN201730822U (en) | Novel torque transmission bailing pump | |
| CN201037385Y (en) | Bridge type leak-stopping pipe column | |
| CN208137872U (en) | A kind of jet stream de-plugging tubing string | |
| CN204703809U (en) | Concentric double-pipe sand washing and well washing process pipe column of water source well | |
| CN204511379U (en) | A kind of extension type taper-shaped blade pipeline scraper | |
| CN202105746U (en) | Spray head for cleaning oil-water well | |
| CN203808885U (en) | Fixed type jet sand-flushing device | |
| CN203201507U (en) | Upper cover plate valve type drilling and grinding sand bailing cone assembly of sand bailing pump | |
| CN206903845U (en) | Fixed sand setting chamber Anti-sand oil pump | |
| CN103015935B (en) | Top-down pull rod type expansion pipe structure | |
| CN202157766U (en) | Horizontal well turbine sand removal device | |
| CN202882807U (en) | Large-inclination directional well downhole single-direction sand-washing flood-relief sand-stopping device | |
| CN107387017A (en) | Draining type double leather cup reservoir protector | |
| CN203476281U (en) | Expanding-type leakage-proof well-flushing packer | |
| CN101614202B (en) | Double-deck defueling pump | |
| CN104632107A (en) | Horizontal well sand washing flowback fluid turbulent flow state generator | |
| CN104832128A (en) | Pollution-free well washing device | |
| CN201891400U (en) | Jet pump switch | |
| CN203717339U (en) | Downhole anti-inversion device for screw pump | |
| CN202596663U (en) | Check valve for well mouth | |
| CN104563901A (en) | Petroleum drilling top drive safety valve protecting joint | |
| CN204327458U (en) | Two fixing antiscale card long plunger type sand-control oil well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20210410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |