CN202560130U - Rotary jet well washing device - Google Patents
Rotary jet well washing device Download PDFInfo
- Publication number
- CN202560130U CN202560130U CN2012201639663U CN201220163966U CN202560130U CN 202560130 U CN202560130 U CN 202560130U CN 2012201639663 U CN2012201639663 U CN 2012201639663U CN 201220163966 U CN201220163966 U CN 201220163966U CN 202560130 U CN202560130 U CN 202560130U
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- washing apparatus
- well washing
- top connection
- impeller mechanism
- side opening
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- 238000005406 washing Methods 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 239000003129 oil well Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000004576 sand Substances 0.000 description 23
- 239000012530 fluid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000007921 spray Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a rotatory jet flow well-flushing device, the device is hollow structure, connect in the oil well and take out oil pipe's bottom, its inner chamber is connected with the inner chamber of taking out oil pipe, the device is inside to have set firmly a fixed nozzle, fixed nozzle sets up one below the pivot and can be driven rotatory impeller mechanism by fixed nozzle spun liquid stream, the bottom of impeller mechanism sets firmly one can be with the outer rotatory nozzle of liquid stream blowout well-flushing device in the impeller mechanism, rotatory nozzle and spun liquid stream are rotatory along with impeller mechanism's rotation. Therefore, the utility model discloses a set up impeller mechanism, make top-down's rivers after impeller rotation to outside 360 degrees fluidic modes blowout well-flushing device, form the efflux of high-speed, rotation, all-round cover, thereby realized thoroughly washing the function of whole sleeve pipe wall through limited jet hole.
Description
Technical field
The utility model is about a kind of oil well underground work instrument, refers in particular to a kind of rotation jet flow well washing apparatus.
Background technology
In oil well production and maintenance process; Regular meeting is because formation sand production, produce that greasy dirt adheres to that the borehole wall, workover fluid and stratum are incompatible and new reasons such as mud contamination after the well completion; (borehole is meant and in well wellbore, is lowered to perforating gun and cause near wellbore zone and borehole; Penetrate sleeve pipe and cement sheath and get into the hole that the stratum forms through the inner shell of the perforating gun that ignites, so that formation oil stream passes through this orifice flow to pit shaft, general aperture is about 10mm) phenomenon of blocking.In case and near wellbore zone and perforation plugging, oil circuit is obstructed, well oil output will receive very big influence.
In order to overcome the above problems, must regularly carry out the work of tube wall sand washing and borehole de-plugging to down-hole workshop section.And in the prior art, mainly adopt the processing method of normal pressure well-flushing, chemical well-flushing and high-pressure spray well-flushing, wherein:
The normal pressure well-flushing is that current are injected oil pipe; Get into the annular space between oil pipe and the sleeve pipe again from the oil pipe bottom; Utilize the water that constantly injects to fill oil pipe and casing annulus; And make water return ground (or, be packed into oil pipe from sleeve bottom again and return ground) from bottom to up, thereby form the method for water circulation with current sprue bushing annular space from casing annulus.In the process of water circulation, dirt has been dashed afterwards and current are mixed into sand liquid, when the water velocity that makes progress greater than water in during the settling rate of impurity, current just can be carried to ground with dirt.But this method is because the discharge area is bigger, and hydraulic pressure is less, and current can not produce impact force to the oil pipe wall, thus its sand washing ability a little less than, not good especially to the plugging removal effect of borehole.
Given this, the operating personnel also has the method that adopts chemical well-flushing, promptly is as flushing fluid with chemical liquid; Inject oil pipe and casing annulus; Make itself and dirt generation chemical reaction, the solid deposited thing is converted into liquid or flowable solid-liquid mixing, and carries out the de-plugging of sand washing completely and borehole.Though this method sand washing is thorough, plugging removal effect is also better, because of its chemical reaction needs the time, so construction period is longer, and construction all need newly be purchased chemical agent at every turn, and cost is high relatively.
So in order to control the well-flushing cost through using cheaply water circulation, can realize sand washing comparatively completely and de-plugging again, the dealer develops a kind ofly to impact the method for the borehole wall through high-pressure water jet, and has used a kind of device of high-pressure spray well-flushing.This device has a jet impulse pipe, and the two ends up and down of this jet impulse pipe are connected with sand clean out pipe and ball-and-seat respectively, and the tube wall of jet impulse pipe is provided with the oblique fire discharge orifice.When the current direct circulation, ball-and-seat is closed, and flushing fluid penetrates from last oblique fire discharge orifice high speed through the jet impulse pipe, realizes high-pressure water jet sand washing and de-plugging with this; At the anti-circulation time of current, ball-and-seat is opened, and current inject sand clean out pipe and return ground from casing annulus is counter, to realize reverse sand washing.Yet; Just the last oblique fire discharge orifice of this jet impulse pipe is circumferentially whenever to have a hole at a distance from a segment distance along tube wall, in order to guarantee jet pressure, last oblique fire discharge orifice should not be provided with too much; And the distance between the Kong Yukong can widen with the minimizing of hole count; This will make when transferring tubing string, and the pairing casing wall of spacing part between the Kong Yukong can not be arrived by jet wash, thereby has caused the still halfway problem of sand washing.
So to above-mentioned shortcoming, the utility model proposes a kind of well washing apparatus that rotates jet flow, the rotary-jet mode in the hope of through water jet solves the problem with limited the whole sleeve pipe wall of the comprehensive flushing of jet orifice.
The utility model content
The purpose of the utility model promptly provides and a kind ofly is equiped with drives impeller so that the rotation jet flow well washing apparatus of flushing fluid rotation, to overcome defective mentioned in the background technology.
The purpose of above-mentioned the utility model is to be realized by following technical scheme:
A kind of rotation jet flow of the utility model well washing apparatus; Be connected in the bottom of oil well oil-pumping tubing; This well washing apparatus is a hollow structure, and its inner chamber is connected with the inner chamber of oil pick-up tube, and this well washing apparatus inside is pivoted vertically one can be by the impeller mechanism of top-down flow driven rotary.
Aforesaid rotation jet flow well washing apparatus; Its inside is installed with a fixed nozzle; This fixed nozzle this impeller mechanism that thereunder is pivoted; The bottom of this impeller mechanism is installed with one can be with the outer swivel nozzle of this well washing apparatus of the ejection of the flow in the impeller mechanism, and the flow of this swivel nozzle and ejection thereof is rotated with the rotation of impeller mechanism.
Aforesaid rotation jet flow well washing apparatus comprises the top connection in a tubular form that is arranged at this oil pick-up tube bottom; And be connected in the water inlet pipe of the hollow of this top connection bottom, be installed with this fixed nozzle in this water inlet pipe; And being connected in the tube connector of the hollow of this water inlet pipe bottom, the inside of this tube connector holds this impeller mechanism and this swivel nozzle; And the lower contact in a tubular form that is connected in this tube connector bottom, the inner chamber of this top connection, water inlet pipe, tube connector and lower contact interconnects.
Aforesaid rotation jet flow well washing apparatus, the sidewall of said top connection are provided with the side opening of the intracavity inter-connection of a plurality of and top connection.
Aforesaid rotation jet flow well washing apparatus has this side opening of two rows on the sidewall of said top connection, last row's side opening is inclined upwardly, and is last oblique side opening, and following row's side opening is downward-sloping, is the declivity side opening.
Aforesaid rotation jet flow well washing apparatus, the sheathed piston that is connected with in the described top connection, the outside wall surface shutoff of this piston should be gone up oblique side opening.
Aforesaid rotation jet flow well washing apparatus, described piston is connected with this top connection through the shear pin that can be sheared power and cut off; The bottom of described top connection has one to the protruding root edge of inner chamber ring, and this piston can be moved downward to via cutting off shear pin and be resisted against on this root edge, and the declivity side opening of this top connection sidewall of shutoff.
Aforesaid rotation jet flow well washing apparatus, described impeller mechanism comprise a center-pole and reach the blade from the outside projection of center-pole, and a centre bore of the top of this center-pole and this fixed nozzle is articulated, and the bottom of center-pole is installed with this swivel nozzle.
Aforesaid rotation jet flow well washing apparatus is symmetrically distributed with 4 inlet openings of axially offering along well washing apparatus on this fixed nozzle, be symmetrically distributed with 4 oblique outer weep holes of offering on this swivel nozzle.
Aforesaid rotation jet flow well washing apparatus, the bottom body of described lower contact is wedge shape.
By above technical scheme, the advantage of the utility model is:
1. the utility model passes through at water inlet pipe and tube connector set inside impeller mechanism; Make top-down current after the impeller rotation; Mode with 360 degree jets sprays outside the well washing apparatus; Form the jet of high speed, rotation, comprehensive covering, thereby realized function through limited the whole sleeve pipe wall of jet orifice cleaning down;
2. the utility model structure is comparatively simple, and the de-plugging and the sand removal of the old well that can be applicable to pollute in oil field Xin Jing, horizontal well and near wellbore zone are very extensive for dissimilar oil well applications, makes the convenient economy of oil well well-flushing;
3. the utility model can move up and down and continuous well-flushing with tubing string, does not receive the restriction of a position, layer position, well segment length weak point, and is very extensive for the oil well applications of different depth, also makes the convenient economy of oil well well-flushing;
4. the utility model swivel nozzle has outside the weep hole, also on the sidewall of top connection, has the declivity side opening, and when tubing string was transferred, declivity side opening and weep hole penetrated current simultaneously, reached the purpose of the dual cleaning borehole wall, cleaned more thorough;
The utility model pitching fracture cut off pin after, form high pressure liquid stream and directly spray to oblique upper from last oblique side opening, have high flow velocities, the ability of therefore carrying sand grains is stronger;
6. the shear pin of the utility model can repeat to install, repeatedly use, and has reduced cost;
7. one-trip string under the utility model can be realized sand washing, two kinds of effects of de-plugging, has reduced the number of times that tubing string removes in the clean-out service, has improved operating personnel's operating efficiency, has reduced cost of production.
Description of drawings
Fig. 1 partly cuts open figure for the utility model;
Fig. 2 is the partial sectional view of the utility model impeller mechanism;
Fig. 3 is the sketch map of the utility model when transferring tubing string;
Fig. 4 is the sketch map of the utility model when the upper lifting pipe post;
The critical element label declaration:
11 top connections of 1 well washing apparatus
Oblique side opening 112 declivity side openings on 111
113 root edges, 12 water inlet pipes
14 lower contacts of 13 tube connectors
15 fixed nozzles, 151 centre bores
152 inlet openings, 16 impeller mechanisms
161 center-poles, 162 blades
17 swivel nozzles, 171 weep holes
18 pistons, 181 shear pins
2 oil pick-up tube, 3 sleeve pipes
5 sand settings, 6 valve balls
The specific embodiment
For goal of the invention, technological means and the technique effect that makes the utility model has more complete and clearly exposure,, and please consult accompanying drawing and element numbers in the lump now in detailed description down.
At first see also shown in Figure 3ly, a kind of rotation jet flow of the utility model well washing apparatus is connected in the bottom of oil well oil-pumping tubing 2, and this well washing apparatus 1 is a hollow structure, and its inner chamber is connected with the inner chamber of oil pick-up tube 2.
See also Fig. 1, the well washing apparatus 1 of the utility model comprises the top connection in a tubular form 11 that is arranged at these oil pick-up tube 2 bottoms; And be connected in the water inlet pipe 12 of the hollow of these top connection 11 bottoms; Be installed with a fixed nozzle 15 in this water inlet pipe 12; This fixed nozzle 15 thereunder be pivoted one can be fixed nozzle 15 ejection the impeller mechanism 16 of flow driven rotary; The bottom of this impeller mechanism 16 is installed with one can be with the swivel nozzle 17 outside this well washing apparatus 1 of the ejection of the flow in the impeller mechanism 16, and the flow of this swivel nozzle 17 and ejection thereof is rotated with the rotation of impeller mechanism 16; And being connected in the tube connector 13 of the hollow of these water inlet pipe 12 bottoms, the inside of this tube connector 13 holds this impeller mechanism 16 and this swivel nozzle 17; And the lower contact in a tubular form 14 that is connected in these tube connector 13 bottoms, the inner chamber of this top connection 11, water inlet pipe 12, tube connector 13 and lower contact 14 interconnects; And this top connection 11 and water inlet pipe 12, water inlet pipe 12 and tube connector 13, tube connector 13 all is connected through screw thread with lower contact 14.
Further, the sidewall of the top connection 11 of well washing apparatus 1 is provided with the side opening of the intracavity inter-connection of a plurality of and top connection 11.In the present embodiment, have this side opening of two rows on the sidewall of this top connection 11, last row's side opening is inclined upwardly, and is last oblique side opening 111, and following row's side opening is downward-sloping, is declivity side opening 112.But the utility model only has a row and should go up oblique side opening 111 also for feasible not as limit on the sidewall of top connection 11.Preferably, the last oblique side opening 111 in the present embodiment all can be 4-6 with declivity side opening 112, to guarantee the even of sand washing.
Please consult Fig. 1 again, the also sheathed piston 18 that is connected with in the top connection 11 of this well washing apparatus 1, the outside wall surface shutoff of this piston 18 should be gone up oblique side opening 111.And this piston 18 is connected with this top connection 11 through the shear pin 181 that can be sheared power and cut off; The bottom of described top connection 11 has one to the protruding root edge 113 of inner chamber ring, and this piston 18 can be moved downward to via cutting off shear pin 181 and be resisted against on this root edge 113, and the declivity side opening 112 of these top connection 11 sidewalls of shutoff.
See also Fig. 2; The impeller mechanism 16 of this well washing apparatus 1 comprises the blade 162 that a center-pole 161 reaches from center-pole 161 outside projections; One centre bore 151 (like Fig. 1) of the top of this center-pole 161 and this fixed nozzle 15 is articulated, and the bottom of center-pole 161 is installed with this swivel nozzle 17.
See also Fig. 1 and Fig. 2, offer at least one inlet opening 152 on this fixed nozzle 15 vertically, oblique outer at least one weep hole 171 that offers on this swivel nozzle 17.Preferably, be symmetrically distributed with 4 these inlet openings 152 on this fixed nozzle 15, be symmetrically distributed with 4 these weep holes 171 on this swivel nozzle 17.But the utility model is not as limit, as long as this inlet opening 152 can be corresponding with the blade 162 of this impeller mechanism 16 with weep hole 171, this inlet opening 152 of other quantity also is feasible with weep hole 171.
More preferably, the bottom body of the lower contact 14 of well washing apparatus 1 is wedge shape, has to be used in being lowered to and continuous sand flushing of well washing apparatus 1.
Below be example with the preferred embodiment of the utility model, carry out the operating principle explanation of the utility model:
When a bite oil well need carry out well-flushing, at first, confirm that according to oil reservoir data or shaft bottom sand face height the down well placement of the well washing apparatus 1 of the utility model also is connected under oil pick-up tube 2 bottoms this device to the precalculated position.
Then, the pump truck that uses discharge capacity 400L/min pumps into well washing apparatus 1 with workover fluid from the top of oil pick-up tube 2, sees also (arrow of Fig. 3 is the flow direction) shown in Figure 3; Slowly transfer simultaneously tubing string; At this moment, workover fluid gets into fixed nozzle 15 and impeller mechanism 16 through water inlet pipe 12, and high pressure liquid stream is impacted the blade 162 of impeller mechanism 16; Make impeller mechanism 16 rotations; Driven rotary nozzle 17 rotations simultaneously, High-Pressure Water forms the high pressure rotary flow through swivel nozzle 17 ejections, and this flow is directly washed away sand setting 5 and borehole (not shown) through lower contact 14.
When ground was continuously pumped into workover fluid, flow was mixed into sand liquid with dirt sand after from well washing apparatus 1, penetrating, and between the annular space of oil pick-up tube 2 and sleeve pipe 3, upwards flowed fast, carried sand grains to ground.Simultaneously, the declivity side opening 112 of top connection 11 also has the high-velocity flow ejaculation then and directly washes the borehole wall because be communicated with the inner chamber of well washing apparatus 1, reaches the purpose of dual cleaning, until being flushed to the shaft bottom.
Please consult (arrow of Fig. 4 is the flow direction) shown in Figure 4 again, during the upper lifting pipe post, in oil pick-up tube 2, drop into a valve ball 6 (valve ball is meant the gravity ball that is used to open and close oil flow channel on the oil well pump of using in the oil field); Valve ball 6 gets into well washing apparatus 1, is sitting on the piston 18, seals downward fluid course; Continue to pump into workover fluid this moment, produce high pressure in the fluid course on well washing apparatus 1 top, and this shear pin 181 is formed downward shearing force; When shearing force was enough big, shear pin 181 was cut off, and piston 18 is displaced downwardly to the bottom of top connection 11; And by these root edge 113 tops to, at this moment, the last oblique side opening 111 of top connection 11 exposes and is communicated with the inner chamber of top connection 11; And the downward passage of top connection 11 is by these valve ball 6 shutoff, and declivity side opening 112 is by the outside wall surface shutoff of piston 18, and workover fluid is oppositely to tiltedly going up ejection; And directly act on borehole, the borehole wall or screen casing surface, wash synchronously and de-plugging, simultaneously; With the slow upper lifting pipe post of working rig, continuous wash is until the about 1m in perforated interval top place from top to bottom to make device, and the flow that sprays through last oblique side opening 111 is discharged to ground with deposit with flow.
At last, trip out whole tubing strings and well washing apparatus 1, carry out subsequent handling.
The above act is merely the schematic part embodiment of the utility model; It is not scope in order to restriction the utility model; Any those skilled in the art; Equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should be included within this patent protection domain.
Claims (10)
1. one kind is rotated the jet flow well washing apparatus; Be connected in the bottom of oil well oil-pumping tubing; This well washing apparatus is a hollow structure, and its inner chamber is connected with the inner chamber of oil pick-up tube, it is characterized in that: this well washing apparatus inside is pivoted vertically one can be by the impeller mechanism of top-down flow driven rotary.
2. rotation jet flow well washing apparatus according to claim 1; It is characterized in that; This well washing apparatus inside is installed with a fixed nozzle; This fixed nozzle this impeller mechanism that thereunder is pivoted, the bottom of this impeller mechanism are installed with one can be with the outer swivel nozzle of this well washing apparatus of the ejection of the flow in the impeller mechanism, and the flow of this swivel nozzle and ejection thereof is rotated with the rotation of impeller mechanism.
3. rotation jet flow well washing apparatus according to claim 1 and 2 is characterized in that described well washing apparatus comprises:
Be arranged at the top connection in a tubular form of this oil pick-up tube bottom; And
Be connected in the water inlet pipe of the hollow of this top connection bottom, be installed with this fixed nozzle in this water inlet pipe; And
Be connected in the tube connector of the hollow of this water inlet pipe bottom, the inside of this tube connector holds this impeller mechanism and this swivel nozzle; And
Be connected in the lower contact in a tubular form of this tube connector bottom, the inner chamber of this top connection, water inlet pipe, tube connector and lower contact interconnects.
4. rotation jet flow well washing apparatus according to claim 3 is characterized in that, the sidewall of said top connection is provided with the side opening of the intracavity inter-connection of a plurality of and top connection.
5. rotation jet flow well washing apparatus according to claim 4 is characterized in that, has this side opening of two rows on the sidewall of said top connection, and last row's side opening is inclined upwardly, and is last oblique side opening, and following row's side opening is downward-sloping, is the declivity side opening.
6. rotation jet flow well washing apparatus according to claim 5 is characterized in that, the sheathed piston that is connected with in the described top connection, and the outside wall surface shutoff of this piston should be gone up oblique side opening.
7. rotation jet flow well washing apparatus according to claim 6 is characterized in that, described piston is connected with this top connection through the shear pin that can be sheared power and cut off; The bottom of described top connection has one to the protruding root edge of inner chamber ring, and this piston can be moved downward to via cutting off shear pin and be resisted against on this root edge, and the declivity side opening of this top connection sidewall of shutoff.
8. rotation jet flow well washing apparatus according to claim 2; It is characterized in that; Described impeller mechanism comprises a center-pole and reaches the blade from the outside projection of center-pole, and a centre bore of the top of this center-pole and this fixed nozzle is articulated, and the bottom of center-pole is installed with this swivel nozzle.
9. rotation jet flow well washing apparatus according to claim 8 is characterized in that, is symmetrically distributed with 4 inlet openings of axially offering along well washing apparatus on this fixed nozzle, is symmetrically distributed with 4 oblique outer weep holes of offering on this swivel nozzle.
10. rotation jet flow well washing apparatus according to claim 3 is characterized in that the bottom body of described lower contact is wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201639663U CN202560130U (en) | 2012-04-17 | 2012-04-17 | Rotary jet well washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201639663U CN202560130U (en) | 2012-04-17 | 2012-04-17 | Rotary jet well washing device |
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| Publication Number | Publication Date |
|---|---|
| CN202560130U true CN202560130U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201639663U Expired - Fee Related CN202560130U (en) | 2012-04-17 | 2012-04-17 | Rotary jet well washing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202560130U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234650A (en) * | 2014-09-04 | 2014-12-24 | 中国石油天然气集团公司 | Casing lowering tool and method |
| CN105464586A (en) * | 2015-12-31 | 2016-04-06 | 中国石油天然气股份有限公司 | Horizontal well reverse circulation jet flow screw drill |
| CN105672916A (en) * | 2016-04-15 | 2016-06-15 | 中国地质大学（武汉） | Composite geothermal well washing tool and well washing technology method |
| CN106285527A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of Double helix flushing tool |
| CN106988779A (en) * | 2017-04-25 | 2017-07-28 | 贵州理工学院 | Rotating-spray stirs sand setting liquefying plant |
| CN110295859A (en) * | 2019-08-06 | 2019-10-01 | 成都阿斯贝瑞科技有限公司 | A kind of rotation well-flushing tool with fluid damping deceleration device |
| CN113107401A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气股份有限公司 | Water injection well washing device and working method thereof |
| CN116378603A (en) * | 2023-05-08 | 2023-07-04 | 浙江省工程勘察设计院集团有限公司 | Hydrogeology well-forming segmented well-flushing device and use method thereof |
-
2012
- 2012-04-17 CN CN2012201639663U patent/CN202560130U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234650A (en) * | 2014-09-04 | 2014-12-24 | 中国石油天然气集团公司 | Casing lowering tool and method |
| CN105464586A (en) * | 2015-12-31 | 2016-04-06 | 中国石油天然气股份有限公司 | Horizontal well reverse circulation jet flow screw drill |
| CN105464586B (en) * | 2015-12-31 | 2017-11-07 | 中国石油天然气股份有限公司 | Horizontal well reverse circulation jet flow screw drill |
| CN105672916A (en) * | 2016-04-15 | 2016-06-15 | 中国地质大学（武汉） | Composite geothermal well washing tool and well washing technology method |
| CN106285527A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of Double helix flushing tool |
| CN106988779A (en) * | 2017-04-25 | 2017-07-28 | 贵州理工学院 | Rotating-spray stirs sand setting liquefying plant |
| CN110295859A (en) * | 2019-08-06 | 2019-10-01 | 成都阿斯贝瑞科技有限公司 | A kind of rotation well-flushing tool with fluid damping deceleration device |
| CN113107401A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气股份有限公司 | Water injection well washing device and working method thereof |
| CN116378603A (en) * | 2023-05-08 | 2023-07-04 | 浙江省工程勘察设计院集团有限公司 | Hydrogeology well-forming segmented well-flushing device and use method thereof |
| CN116378603B (en) * | 2023-05-08 | 2024-05-28 | 浙江省工程勘察设计院集团有限公司 | Hydrogeology well-forming segmented well-flushing device and use method thereof |
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