CN107489401A - A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device - Google Patents
A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device Download PDFInfo
- Publication number
- CN107489401A CN107489401A CN201710817343.0A CN201710817343A CN107489401A CN 107489401 A CN107489401 A CN 107489401A CN 201710817343 A CN201710817343 A CN 201710817343A CN 107489401 A CN107489401 A CN 107489401A
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- Prior art keywords
- water
- nozzle
- spray gun
- truck
- sleeve pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Abstract
The invention belongs to Casing Failure descalling technique field, more particularly to a kind of water-jet sleeve pipe apparatus for eliminating sludge and the process using the device, including silo, fracturing blender truck, pump truck, solution feed pump, pond and spray gun, water in pond is delivered in fracturing blender truck by solution feed pump, fracturing blender truck is delivered to pump truck after mixing the quartz sand from silo and water, described spray gun by under oil pipe to underground, pump truck will be mixed with the water pressurized delivered of quartz sand to spray gun by oil pipe, water under high pressure ejects to form high-speed jet by the nozzle on spray gun, it is allowed to depart from casing wall so as to which the dirty matter on the borehole wall be smashed, the water sprayed from nozzle is returned in pond from well head.Present invention employs spiral nozzle distribution mode, and while scale removal is ensured without dead angle, scale removal is thorough, efficiency high, realize broken, cleaning, scraping is once completed, while can also effectively clean borehole dirt, improve seepage channel, through field application, scale removal effect is fabulous.
Description
Technical field
The invention belongs to Casing Failure descalling technique field, more particularly to a kind of water-jet sleeve pipe apparatus for eliminating sludge and should
With the process of the device.
Background technology
ASP Oil-Displacing Technology is a kind of technology of reservoir sweep commonly used in the production of oil field, in the technology application process, meeting
The problem of producing sleeve scaling.Behind ternary built composite reservoir oil displacement system injection stratum, the ionic equilibrium on stratum is broken, with ground laminar flow
Complicated chemical reaction occurs for body and rock, and due to the change of the factors such as temperature, pressure, ion composition, nothing occurs in pit shaft
Machine saline deposit, there is serious scale formation.The main component of dirty matter is by amorphous silicon dioxide dirt, silicate scale, carbon
Silicate dirt is formed, and dirty matter is fine and close, hard, it is difficult to removes.Payzone can be injured after oil well fouling, oil recovery factor reduces, hole diameter contracting
Small, pump detection period shortens, and has a strong impact on the normal production of oil well.
In order to reduce fouling to the adverse effect of oil well production, it is necessary to carry out scale removal operation, existing descaling method is main
There are two kinds of chemical cleaning and mechanical descaling.Chemical cleaning is to dissolve the dirty matter on internal surface of sleeve pipe, this side by chemical agent
The drawbacks of formula, is：Can not only produce it is new precipitate, new dirty matter, and different degrees of environmental pollution can be produced.Machinery removes
Dirt is to carry out milling to dirty matter using turbodrill, is the drawbacks of this mode：Scale removal speed is slow, efficiency is low；What turbine bored
Moment of torsion can damage oil pipe thread；A variety of milling heads are usually needed to use to carry out multiple milling, operating cost is higher；To borehole meeting
There is certain more stifled effect, influence liquid measure output.Therefore, it is necessary to a kind of new descalling technique is researched and developed to solve the above problems.
The content of the invention
The present invention provides the process of a kind of water-jet sleeve pipe apparatus for eliminating sludge and the application device, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
Technical problem solved by the invention is realized using following technical scheme：The present invention provides a kind of water-jet set
Water in pond is delivered to mixed by pipe apparatus for eliminating sludge, including silo, fracturing blender truck, pump truck, solution feed pump, pond and spray gun, solution feed pump
In sand car, fracturing blender truck will the quartz sand from silo and water mix after be delivered to pump truck, described spray gun by under oil pipe to well
Under, pump truck is ejected the water pressurized delivered for being mixed with quartz sand to spray gun, water under high pressure by the nozzle on spray gun by oil pipe
To form high-speed jet, it is allowed to depart from casing wall so as to which the dirty matter on the borehole wall be smashed, the water sprayed from nozzle returns from well head
Into pond；
The structure of described spray gun includes the body of a gun and 18 nozzles, is from top to bottom provided with 6 injection sections on the body of a gun altogether,
Two neighboring injection section spacing is 100mm, and each spray is each provided with 3 nozzles on section, 3 sprays on same injection section
Mouth is mutually 120 °, 20 ° of the equidirectional carrier phase shifts of adjacent two injection section top nozzles, the injection channel in nozzle center
A diameter of 3mm.The angle of nozzle-axis and body of a gun axis is 80 °, and the injection direction of nozzle tilts upward.
As an alternative solution, the structure of described spray gun includes the body of a gun and nozzle, and each nozzle is evenly distributed on the bottom of the body of a gun
Portion, nozzle-axis and the angle of preceding body axis are 15 °.
The invention provides a kind of water-jet sleeve pipe apparatus for eliminating sludge using any one of claim 1-3
Sleeve pipe stain eliminating technology method, comprises the following steps：
Step 1, the crude oil wax in sleeve pipe is cleaned up with 80 DEG C of hot water anti-flushing wells before construction；
Step 2, rise and former well casing post, tripping in descaling tool string, descaling tool string is followed successively by centralizer, ball from top to bottom
Seat, spray gun, scraper and oil pipe, the lowering velocity of descaling tool string is 1-5m/min；
Step 3, silo, fracturing blender truck, pump truck and solution feed pump are opened while tripping in descaling tool string, is finally sprayed by nozzle
High-speed jet, the dirty matter on the high-speed jet impact borehole wall realize scale removal, and during scale removal, the discharge capacity of pump truck is 1.0-1.6m3/ min,
The effluxvelocity of nozzle is 130-200m/s, and weight/mass percentage composition of the quartz sand in water is 0-5%, descaling tool string tripping in
Cheng Zhong, it is ensured that the pointer of Operation Van's weight indicator is without bounce；
Step 4, descaling tool string passes through perforated interval, and behind lower going-into-well bottom, anti-sand-flushing is into returning fluid without solid-state
Untill grain.
Beneficial effects of the present invention are：Present invention employs spiral nozzle distribution mode, is ensureing scale removal without dead angle
Meanwhile scale removal is thorough, efficiency high, realize it is broken, cleaning, scraping once complete, while can also effectively clean borehole dirt, change
Kind seepage channel, through field application, scale removal effect is fabulous.In addition, the present invention also there is perforation function, by under spray gun to perforation
Section, the quartz sand of incorporation 5%, last for several minutes can complete perforation in water.
Brief description of the drawings
Fig. 1 is the structural representation of water-jet sleeve pipe apparatus for eliminating sludge；
A kind of structural representation of embodiment of Fig. 2 spray guns；
Fig. 3 is the sectional view at A in Fig. 2；
Fig. 4 is the sectional view at B in Fig. 2；
Fig. 5 is the sectional view at C in Fig. 2；
Fig. 6 is the sectional view at D in Fig. 2；
Fig. 7 is the sectional view at E in Fig. 2；
Fig. 8 is the sectional view at F in Fig. 2；
Fig. 9 is jet view of the spray gun in sleeve pipe shown in Fig. 2；
Figure 10 is the structural representation of another embodiment of spray gun.
In figure：The 1- body of a guies, 2- nozzles, 3- injection channels, 4- sleeve pipes, 5- high-speed jets, 6- descaling tool strings, 7- ponds,
8- solution feed pumps, 9- silos, 10- fracturing blender trucks, 11- pump trucks.
Embodiment
The present invention is described further below in conjunction with accompanying drawing：
As shown in figure 1, the present embodiment includes silo 9, fracturing blender truck 10, pump truck 11, solution feed pump 8, pond 7 and spray gun, feed flow
Water in pond 7 is delivered in fracturing blender truck 10 by pump 8, and fracturing blender truck 10 is delivered to after mixing the quartz sand from silo 9 and water
Pump truck 11, described spray gun is by extremely being sprayed the water pressurized delivered for being mixed with quartz sand by oil pipe to underground, pump truck 11 under oil pipe
At rifle, water under high pressure ejects to form high-speed jet 5 by the nozzle 2 on spray gun, is allowed to so as to which the dirty matter on the borehole wall be smashed
Depart from casing wall, the water sprayed from nozzle 2 is back in pond 7 after well head spilling, and spray gun is connected on descaling tool string 6
In.
As illustrated in figs. 2 through 8, a kind of embodiment as spray gun, the structure of spray gun include the body of a gun 1 and 18 nozzles 2, the body of a gun 1
On be from top to bottom provided with 6 injection sections altogether, two neighboring injection section spacing be 100mm, is respectively set on each injection section
3 nozzles 2 are equipped with, 3 nozzles 2 are mutually 120 ° on same injection section.
20 ° of the equidirectional carrier phase shift of two adjacent injection section top nozzles 2, that is to say, that in two neighboring spray
Penetrate in the lower projection in section, 20 ° of 2 jet angle of nozzle, 18 nozzles 2 on six injection sections combine, around spray gun just
One 360 ° of column jet face is formed well, ensure that the efficiency of scale removal.Meanwhile jet impulse internal surface of sleeve pipe width 20mm, set
The width that inside pipe wall is not sprayed is 0mm, so as to ensure that no dead angle scale removal.The distribution mode of spiral nozzle 2 is employed, at a high speed
Jet 5 is evenly distributed, jet concentrate, scale removal is thorough, efficiency high, realize it is broken, cleaning, scraping once complete, simultaneously also
Borehole dirt can be effectively cleaned, improves seepage channel, through field application, scale removal effect is fabulous.
A diameter of 3mm of the injection channel 3 in the center of nozzle 2,3mm aperture can both ensure sufficiently large jet width,
It can ensure that quartz sand passes through again, while also be avoided that intense impact of the quartz sand to the hole wall of injection channel 3.
The angle of the axis of nozzle 2 and the axis of the body of a gun 1 is 80 °, and nozzle 2 is obliquely installed so that high-speed jet 5 can be acted on directly
In on the plane of disruption of dirty matter, be advantageous to fouling and crush, improve scale removal efficiency.The injection direction of nozzle 2 tilts upward, injection direction
Tilting upward can effectively avoid the dirty matter after coming off from sinking down into shaft bottom, and dirty matter is discharged upwards in time.
As shown in Figure 10, another embodiment as spray gun, the structure of described spray gun include the body of a gun 1 and nozzle 2, respectively
Nozzle 2 is evenly distributed on the bottom of the body of a gun 1, and the angle of the axis of nozzle 2 and the axis of the body of a gun 1 is 15 °.When dirty matter thickness mistake in well
Greatly, when well latus rectum is less than the diameter of the body of a gun 1, the spray gun structure that nozzle 2 is arranged on the side of the body of a gun 1 is difficult to go into the well, such a situation
Under, the spray gun structure shown in Figure 10 can be used.
The invention provides a kind of water-jet sleeve pipe apparatus for eliminating sludge using any one of claim 1-3
Sleeve pipe stain eliminating technology method, comprises the following steps：
Step 1, the crude oil wax in sleeve pipe 4 is cleaned up with 80 DEG C of hot water anti-flushing wells before construction.
Step 2, rise and former well casing post, tripping in descaling tool string 6, descaling tool string 6 is followed successively by centralizer, ball from top to bottom
Seat, spray gun, scraper and oil pipe, the lowering velocity of descaling tool string 6 is 1-5m/min.
Step 3, silo 9, fracturing blender truck 10, pump truck 11 and solution feed pump 8 are opened while tripping in descaling tool string 6, finally by
Nozzle 2 sprays high-speed jet 5, the dirty matter that high-speed jet 5 is impacted on the borehole wall, realizes scale removal, and during scale removal, the discharge capacity of pump truck 11 is
1.0-1.6m3/ min, the effluxvelocity of nozzle 2 is 130-200m/s, and weight/mass percentage composition of the quartz sand in water is 0-5%,
During the tripping in of descaling tool string 6, it is ensured that the pointer of Operation Van's weight indicator is without bounce.
In the slight well section of fouling, one side tripping in descaling tool string, while using small displacement (1.0m3/min) scale removal, jet
Speed 130m/s, first jet crushing dirt, behind scraper scraping examine sandblasting effect (blade minimum outer diameter 115mm), come off
Dirt bits sleeve 4 returning fluid take ground in time.Into the serious well section of fouling, pump truck output (1.5m3/min) is increased, is improved
The effluxvelocity (200m/s) of nozzle 2, can according to circumstances add 1-5% quartz sand simultaneously, jet is greatly improved to dirt
(the serious well section of fouling, per piece oil pipe of tripping in, sleeve pipe 4 exports with regard to that can pile up high 30 cm diameter, 40 centimetres of centrums fragmentation
The chip of (volume 0.012m3), full well will be about removing nearly 1m3 chip).
Step 4, descaling tool string 6 passes through perforated interval, and behind lower going-into-well bottom, anti-sand-flushing is into returning fluid without solid-state
Untill grain.
For perforated interval, cleaned repeatedly repeatedly with 200m/s high-speed jets, effectively clean borehole dirt, improve seepage flow
Passage.
The experimental record of field application of the present invention and ground experiment is provided below, so as to which the skill of the present invention is understood more intuitively
Art effect.
First, field experiment (purpose is verified to effect of field application)：
(1), pound sign：Bei1-4-SE31Jing belonging to Daqing oil field oil extraction No.1 Factory.
(2), hole condition：The 10- Sas III 10 of mined bed Sa II, sandstone thickness 21.9m, effective thickness 12.5m, permeability
0.442 μm 2, Liquid output declines 40% by September, 2015 in August, 2016, is GLB500-30 slight interference screw rods in well at present
Pump, produce liquid 14.5m3 daily, be that feed flow is insufficient according to every data analysis, fouling is serious in well.
(3), experiment parameter：
1st, the lowering velocity of descaling tool string 6：2.5m/min；
2nd, the discharge capacity of pump truck 11：1.3m3/min；
3rd, the effluxvelocity of nozzle 2 is 170m/s, and weight/mass percentage composition of the quartz sand in water is 2.5%.
(4), experimental result：
Before measure：Produce liquid 16.05t daily；
After measure：Produce liquid 26.20t daily；
Produce liquid increment 10.15t, amplification 63%.
2nd, ground simulating (purpose is to carry out observation checking to the situation of the inwall of sleeve pipe 4 after scale removal)：
(1) experimentation：
Take one section of sleeve pipe 4, cement thick coating 8-10mm carrys out the fouled condition of analog casing 4 in the sleeve pipe 4, cement into
Divide (silicate) similar to the composition of dirty matter, and adhesive strength of the cement on sleeve pipe 4 is similar, therefore can be used to analog casing 4
Fouled condition.
(2) experiment condition and result：
1st, experiment condition one：Medium is water, sprays pressure 30MPa, translational speed 0.5m/min.
Experimental result one：Cement is entirely removed, and can be clearly apparent injection vestige on the inwall of sleeve pipe 4, can't see bright
Aobvious depression injury.
2nd, experiment condition two：Medium is water and 5% quartz sand, sprays pressure 25MPa, translational speed 0.5m/min.
Experimental result two：Cement is entirely removed, and the inwall of sleeve pipe 4 shows more brilliant white, and surface corrosion is completely without having can't see obvious
Depression injury.
In addition, after being rearranged to the position of nozzle 2, spray gun can also have perforation function, by under spray gun extremely
Perforated interval, the quartz sand of incorporation 5% and further raising pump truck pressure, last for several minutes can complete perforation in water.
Claims (4)
- A kind of 1. water-jet sleeve pipe apparatus for eliminating sludge, it is characterised in that：Including silo (9), fracturing blender truck (10), pump truck (11), confession Water in pond (7) is delivered in fracturing blender truck (10) by liquid pump (8), pond (7) and spray gun, solution feed pump (8), and fracturing blender truck (10) will Be delivered to pump truck (11) after quartz sand from silo (9) and water mixing, described spray gun by under oil pipe to underground, pump truck (11) the water pressurized delivered for being mixed with quartz sand to spray gun, water under high pressure is ejected by the nozzle (2) on spray gun by oil pipe To form high-speed jet (5), be allowed to depart from casing wall so that the dirty matter on the borehole wall be smashed, the water sprayed from nozzle (2) from Well head is back in pond (7) after overflowing；The structure of described spray gun includes the body of a gun (1) and 18 nozzles (2), and 6 injections are from top to bottom provided with altogether on the body of a gun (1) Section, two neighboring injection section spacing is 100mm, and each spray is each provided with 3 nozzles (2) on section, same injection is cut 3 nozzles (2) are mutually 120 ° on face, 20 ° of the equidirectional carrier phase shifts of adjacent two injection section top nozzles (2), nozzle (2) a diameter of 3mm of central injection channel (3).
- A kind of 2. water-jet sleeve pipe apparatus for eliminating sludge according to claim 1, it is characterised in that：As an alternative solution, institute The structure for the spray gun stated includes the body of a gun (1) and nozzle (2), and each nozzle (2) is evenly distributed on the bottom of the body of a gun (1), nozzle (2) axle The angle of line and the body of a gun (1) axis is 15 °.
- A kind of 3. water-jet sleeve pipe apparatus for eliminating sludge according to claim 1, it is characterised in that：Nozzle (2) axis and rifle The angle of body (1) axis is 80 °, and the injection direction of nozzle (2) tilts upward.
- A kind of 4. sleeve pipe stain eliminating technology side of water-jet sleeve pipe apparatus for eliminating sludge using any one of claim 1-3 Method, it is characterised in that：Comprise the following steps：Step 1, the crude oil wax in sleeve pipe (4) is cleaned up with 80 DEG C of hot water anti-flushing wells before construction；Step 2, rise and former well casing post, tripping in descaling tool string (6), descaling tool string (6) is followed successively by centralizer, ball from top to bottom Seat, spray gun, scraper and oil pipe, the lowering velocity of descaling tool string (6) is 1-5m/min；Step 3, silo (9), fracturing blender truck (10), pump truck (11) and solution feed pump (8) are opened while tripping in descaling tool string (6), High-speed jet (5) is finally sprayed by nozzle (2), the dirty matter on high-speed jet (5) the impact borehole wall, realizes scale removal, during scale removal, pump truck (11) discharge capacity is 1.0-1.6m3/ min, the effluxvelocity of nozzle (2) are 130-200m/s, quality hundred of the quartz sand in water It is 0-5% to divide content, during descaling tool string (6) tripping in, it is ensured that the pointer of Operation Van's weight indicator is without bounce；Step 4, descaling tool string (6) passes through perforated interval, and behind lower going-into-well bottom, anti-sand-flushing is into returning fluid without solid granulates Untill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817343.0A CN107489401A (en) | 2017-09-12 | 2017-09-12 | A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817343.0A CN107489401A (en) | 2017-09-12 | 2017-09-12 | A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device |
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| CN107489401A true CN107489401A (en) | 2017-12-19 |
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| CN201710817343.0A Pending CN107489401A (en) | 2017-09-12 | 2017-09-12 | A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643764A (en) * | 2019-03-15 | 2020-01-03 | 广东韶钢松山股份有限公司 | Sand washing descaling method for blast furnace cooling wall pipeline |
| CN111472720A (en) * | 2019-01-23 | 2020-07-31 | 宁夏通领环保科技有限公司 | Equipment for removing dirt from oil exploitation shaft |
| CN112814631A (en) * | 2021-04-01 | 2021-05-18 | 中国石油天然气股份有限公司 | Sand-blasting and well-washing integrated spray gun, abrasive water jet flow operation system and method |
| CN114749451A (en) * | 2022-03-09 | 2022-07-15 | 中南大学 | Sand blasting cleaning system adopting visual servo control |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472720A (en) * | 2019-01-23 | 2020-07-31 | 宁夏通领环保科技有限公司 | Equipment for removing dirt from oil exploitation shaft |
| CN110643764A (en) * | 2019-03-15 | 2020-01-03 | 广东韶钢松山股份有限公司 | Sand washing descaling method for blast furnace cooling wall pipeline |
| CN112814631A (en) * | 2021-04-01 | 2021-05-18 | 中国石油天然气股份有限公司 | Sand-blasting and well-washing integrated spray gun, abrasive water jet flow operation system and method |
| CN114749451A (en) * | 2022-03-09 | 2022-07-15 | 中南大学 | Sand blasting cleaning system adopting visual servo control |
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