CN106801588A - The semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction - Google Patents
The semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction Download PDFInfo
- Publication number
- CN106801588A CN106801588A CN201710008293.1A CN201710008293A CN106801588A CN 106801588 A CN106801588 A CN 106801588A CN 201710008293 A CN201710008293 A CN 201710008293A CN 106801588 A CN106801588 A CN 106801588A
- Authority
- CN
- China
- Prior art keywords
- mud
- slurry
- outlet
- solid
- entrance
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000005516 engineering process Methods 0.000 title claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 68
- 238000005553 drilling Methods 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000007787 solid Substances 0.000 claims abstract description 41
- 239000002689 soil Substances 0.000 claims abstract description 7
- 238000010079 rubber tapping Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 22
- 239000002893 slag Substances 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 18
- 230000006837 decompression Effects 0.000 claims description 16
- 239000010802 sludge Substances 0.000 claims description 15
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 238000004162 soil erosion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 229940059082 douche Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses the artesian water earth-boring semiclosed mud pressure keeping circulation technology of construction, and (A) is respectively mounted setting rig, mud pit, slush pump, port seal and equipment for separating liquid from solid；(B) slurry outlet of mud pit is connected with the mud entrance of slush pump, the slurry outlet of slush pump is connected with the mud entrance of rig；(C) mud entrance of equipment for separating liquid from solid is connected with the slurry outlet of port seal, and the slurry outlet of equipment for separating liquid from solid is connected with the mud entrance of mud pit；(D) artesian pressure and depth of stratum according to drilling tapping position set the pressure threshold value in equipment for separating liquid from solid so that the mud in drilling forms pressure balance with the water and soil on stratum；(E) drilling rod of rig carries out drilling construction through port seal.The semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction of the present invention neither causes soil erosion and does not influence drilling normally to be advanced in the case where mud is protected.
Description
Technical field
The present invention relates to the equipment of artesian water earth-boring technical field of construction, more particularly to artesian water earth-boring construction
Semiclosed mud pressure keeping circulation technology.
Background technology
In municipal tunnel, deep basal pit and subway construction construction, the part working face water level located underground of drilling construction
Below or position of opening be located at artesian water stratum in, do not take measures construction when, occur water burst more, gush the accidents such as sand, cause ground
Layer severe water and soil erosion, or even surface collapse, damage surrounding structure thing.Therefore, horizontal drilling is carried out in artesian water stratum to apply
During work, mud can slow down or avoid drilling construction to the disturbing influence on original stratum with the Water And Earth Pressures balance on stratum, subtract
Few soil erosion.Such as survey or colliery vertical drilling during, mud balance produce Water And Earth Pressures balance can avoid collapse hole
Occur etc. accident.
Conventional solution is to carry out sealing drilling (as shown in Figure 1) using orifice tube, valve and hold-down gear now.
Constructed under the drilling equipment, have following drawback：1) mud pressure is unstable in hole, it is difficult to form the water and soil of mud and stratum
Pressure balance；2) hole drilling deslagging can only rely on the unlatching of orifice tube by-passing valve, easily cause water burst, gush sand.Therefore, mud is being stablized
Deslagging is emphasis in pressure lower opening, how effectively can turn into the key that artesian water earth-boring is constructed by deslagging under mud pressurize.
The content of the invention
In view of this, the invention reside in a kind of feelings for neither causing soil erosion and not influenceing drilling to be protected in mud of offer
The artesian water earth-boring semiclosed mud pressure keeping circulation technology of construction of normal propulsion under condition.
The present invention is achieved through the following technical solutions：
The semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction, comprises the following steps：
(A) setting rig, mud pit, slush pump, port seal and equipment for separating liquid from solid are respectively mounted；
(B) slurry outlet of the mud pit is connected with the mud entrance of the slush pump, by the mud of the slush pump
Slurry outlet is connected with the mud entrance of the rig；
(C) mud entrance of the equipment for separating liquid from solid is connected with the slurry outlet of the port seal, described solid
The slurry outlet of liquid separating apparatus is connected with the mud entrance of the mud pit；
(D) artesian pressure and depth of stratum according to drilling tapping position set the pressure in the equipment for separating liquid from solid
Power threshold values so that the mud in drilling forms pressure balance with the water and soil on stratum；Pressure in the equipment for separating liquid from solid exceedes
During the pressure threshold value of setting, the slurry outlet of the equipment for separating liquid from solid is opened and mud is discharged in the mud pit；Institute
When stating the pressure in equipment for separating liquid from solid less than the pressure threshold value for setting, the slurry outlet of the equipment for separating liquid from solid is closed；
(E) drilling rod of the rig carries out drilling construction through the port seal, and mud is close by the aperture
Seal apparatus are escaped and enter in the equipment for separating liquid from solid.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the port seal includes aperture
Pipe, ball valve and hold-down gear, one end of the orifice tube are extend into drilling, and the hold-down gear is arranged on the orifice tube
On the other end, the ball valve is arranged on the orifice tube between bore entrance and the hold-down gear；The drilling rod is successively
Through the hold-down gear, the orifice tube drilling construction is carried out away from the mouth of pipe and the ball valve of drilling one end.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the equipment for separating liquid from solid includes first
Pipeline, second pipe, slurry can and adjustable automatic decompression valve；The entrance of first pipeline is turned on orifice tube, and described first
The outlet of pipeline is turned on the entrance of the second pipe；The outlet of the second pipe is turned on the entrance of the slurry can,
The adjustable automatic decompression valve is arranged on the sludge outlet at the top of the slurry can.The pore cross-sectional area of the second pipe
More than the pore cross-sectional area of first pipeline, the cross-sectional area of the slurry can is transversal more than the pore of the second pipe
Area.The pore of the pore cross-sectional area, the cross-sectional area of the slurry can and the second pipe of first pipeline is horizontal
Size between sectional area three, its determination principle be ensure fluid reduction of speed after can by the solids such as the drilling cuttings in mud with
Mud is sufficiently separated.Ordinary skill is on the basis of technical solution of the present invention is known, it is not necessary to spend any creativeness
Work just can specifically determine, therefore not repeated one by one in detail further according to Specific construction situation in the present invention.But, root
According to the experience for realizing by changing flow velocity separation of solid and liquid, the pipe of the pore cross-sectional area of the second pipe and first pipeline
The ratio between hole cross-sectional area minimum 2:1；The ratio between the cross-sectional area of the slurry can and pore cross-sectional area of the second pipe
Minimum 9:1.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the port seal also includes side
Port valve and sludge discharge pipe, the orifice tube between the sludge discharge pipe and the ball valve and bore entrance are connected, described
By-passing valve is arranged on the sludge discharge pipe；The entrance of first pipeline and the outlet of the sludge discharge pipe.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the bottom of the slurry can is provided with out
Cinder notch, valve of slagging tap is provided with the slag notch.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, is provided with below the valve of slagging tap
Storage slag chute, the outlet of the entrance of the storage slag chute and the valve of slagging tap.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, mud is provided with the top of the slurry can
Slurry effuser, air bleeding valve and pressure gauge are provided with the side conduit of the mud effuser.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the outlet of the mud effuser and institute
The entrance conducting of adjustable automatic decompression valve is stated, outlet and the mud pit of the adjustable automatic decompression valve are turned on.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the second pipe includes being fixedly connected
And the straight length and bend loss of mutual conduction, one end of the straight length passes through the tank skin in the middle part of the slurry can and is deep into institute
State in slurry can, the bend loss is located in the slurry can, the outlet of the bend loss is towards the bottom of the slurry can.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, the fluid intake side of first pipeline
To the fluid intake direction for falling in the orifice tube；Axle of the fluid issuing direction of first pipeline perpendicular to the straight length
Line；Fluid flow direction in the straight length is flowed to perpendicular to the fluid of bend loss outlet.
The semiclosed mud pressure keeping circulation technology of above-mentioned artesian water earth-boring construction, installs on the other end of the straight length
There are draining and maintenance valve.
The beneficial effects of the invention are as follows：
1st, draining and the setting of maintenance valve so that pressure release draining by after opening, can be used as residue in can,douche again
Passage.
2 and orifice tube connection valve and the first pipeline second pipe side, for first time mud change direction
With reduction of speed.
3rd, bend loss outlet is arranged towards slurry can bottom, and direction and reduction of speed are changed for second mud.
4th, mud pressure exceedes the adjustable automatic decompression valve threshold values that top is set in tank, and automatic decompression valve is automatically turned on, shape
Into mud peripheral passage, mud flows into pond with slurry, conversely, then closing pressurize.
5th, slurry can bottom is mounted with to store up slag chute by valve seal.The keying of bottom valve is used under dwell condition to the greatest extent
The few not even plasma discharge situation of amount reaches the purpose of deslagging.
6th, neither cause soil erosion and do not influence drilling normally to be advanced in the case where mud is protected, can be with existing hole
Mouth matched with devices is used.The present invention is real using rate of flow of fluid and flow direction is changed under the pressure maintaining effect of closed circulation system
Now solid (sandstone) liquid (mud) is separated.
7th, during technique of the invention is applied to be carried out in artesian water stratum drilling construction, the water and soil on mud and stratum
Pressure balance can slow down or avoid drilling construction to the disturbing influence on original stratum, reduce soil erosion, it is ensured that drilling is normally pushed away
Enter.
Brief description of the drawings
Schematic diagram when Fig. 1 is prior art drilling construction sealing drilling.
The structural representation of Fig. 2 semiclosed mud pressure keeping circulation technologies of artesian water earth-boring construction of the present invention.
Fig. 3 is the semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction of the present invention when drilling construction works
Schematic diagram.
The pipelines of 1- first；2- second pipes；21- straight lengths；22- bend loss；3- slurry cans；31- slag notches；32- slags tap
Valve；33- mud effusers；34- side conduits；4- is adjustable automatic decompression valve；5- air bleeding valves and pressure gauge；6- stores up slag chute；7-
Draining and maintenance valve；100- orifice tubes；200- drilling rods；300- mud pits；400- non-return valves；500- hold-down gears；600- is bored
Machine；700- slush pumps；800- ball valves；900- by-passing valves.
Specific embodiment
It is the scheme in the clear explanation present invention, preferred embodiment is given below and is described with reference to the accompanying drawings.
As shown in figure 3, the present embodiment artesian water earth-boring is constructed, semiclosed mud pressure keeping circulation technology includes following step
Suddenly：
(A) setting rig 600, mud pit 300, slush pump 700, port seal and separation of solid and liquid dress are respectively mounted
Put；
(B) slurry outlet of the mud pit 300 is connected with the mud entrance of the slush pump 700, by the mud
The slurry outlet of pump 700 is connected with the mud entrance of the rig 600；
(C) mud entrance of the equipment for separating liquid from solid is connected with the slurry outlet of the port seal, described solid
The slurry outlet of liquid separating apparatus is connected with the mud entrance of the mud pit 300；
(D) artesian pressure and depth of stratum according to drilling tapping position set the pressure in the equipment for separating liquid from solid
Power threshold values so that the mud in drilling forms pressure balance with the water and soil on stratum；Pressure in the equipment for separating liquid from solid exceedes
During the pressure threshold value of setting, the slurry outlet of the equipment for separating liquid from solid is opened and mud is discharged in the mud pit 300；
When pressure in the equipment for separating liquid from solid is less than the pressure threshold value of setting, the slurry outlet of the equipment for separating liquid from solid is closed；
(E) drilling rod 200 of the rig 600 carries out drilling construction through the port seal, and mud is by described
Port seal is escaped and enter in the equipment for separating liquid from solid.
As shown in Figures 2 and 3, the port seal includes orifice tube 100, ball valve 800 and hold-down gear 500, institute
The one end for stating orifice tube 100 is extend into drilling, and the hold-down gear 500 is arranged on the other end of the orifice tube 100, institute
State on the orifice tube 100 that ball valve 800 is arranged between bore entrance and the hold-down gear 500；The drilling rod 200 is successively
Carry out drilling and apply away from the mouth of pipe and the ball valve 800 of drilling one end through the hold-down gear 500, the orifice tube 100
Work.
As shown in Figures 2 and 3, the equipment for separating liquid from solid includes the first pipeline 1, second pipe 2, slurry can 3 and adjustable
Automatic decompression valve 4；The entrance of first pipeline 1 is turned on orifice tube 100, the outlet of first pipeline 1 and described second
The entrance conducting of pipeline 2；The outlet of the second pipe 2 is turned on the entrance of the slurry can 3, the adjustable automatic decompression valve
4 sludge outlets for being arranged on the top of the slurry can 3.In the present embodiment, the port seal also includes by-passing valve 900
And sludge discharge pipe, the orifice tube 100 between the sludge discharge pipe and the ball valve 800 and bore entrance connects, institute
By-passing valve 900 is stated to be arranged on the sludge discharge pipe；The entrance of first pipeline 1 connects with the outlet of the sludge discharge pipe
It is logical.
The drilling rod 200 passes through the pore of the orifice tube 100, i.e., described first pipeline 1 and the orifice tube 100 and institute
State the annular space conducting between drilling rod 200.Pipe of the pore cross-sectional area of the second pipe 2 more than first pipeline 1
Hole cross-sectional area, the pore cross-sectional area of the cross-sectional area more than the second pipe 2 of the slurry can 3.First pipeline 1
Pore cross-sectional area, the cross-sectional area of the slurry can 3 and the second pipe 2 pore cross-sectional area three between
Size, its determination principle can be sufficiently separated the solids such as the drilling cuttings in mud and mud after ensureing fluid reduction of speed；This
Field ordinary skill is on the basis of technical solution of the present invention is known, it is not necessary to spend any creative work just can be specifically true
It is fixed, therefore do not repeated one by one in detail further according to Specific construction situation in the present invention.But, according to by changing flow velocity reality
The ratio between the experience of existing separation of solid and liquid, the pore cross-sectional area of the second pipe 2 and pore cross-sectional area of first pipeline 1
Minimum 2:1；The ratio between the cross-sectional area of the slurry can 3 and pore cross-sectional area of the second pipe 2 minimum 9:1.Institute
Stating second pipe 2 includes being fixedly connected the straight length 21 and bend loss 22 of simultaneously mutual conduction, and one end of the straight length 21 passes through
Tank skin between the middle part of the slurry can 3 and top is simultaneously deep into the slurry can 3, and the bend loss 22 is located at the storage slurry
In tank 3, the outlet of the bend loss 22 is towards the bottom of the slurry can 3.The fluid intake direction of first pipeline 1 falls in
The fluid intake direction of the orifice tube 100；Axle of the fluid issuing direction of first pipeline 1 perpendicular to the straight length 21
Line；Fluid flow direction in the straight length 21 is flowed to perpendicular to the fluid of the outlet of the bend loss 22.The straight length 21 it is another
Draining and maintenance valve 7 are installed on one end.
The bottom of the slurry can 3 is provided with slag notch 31, and valve 32 of slagging tap is provided with the slag notch 31.It is described go out
The lower section of slag valve 32 is provided with storage slag chute 6, the entrance of the storage slag chute 6 and the outlet of the valve 32 of slagging tap.
The top of the slurry can 3 is provided with mud effuser 33, and air bleeding valve 5 is provided with the mud effuser 33.
The entrance of the outlet of the mud effuser 33 and the adjustable automatic decompression valve 4 turns on, and the adjustable automatic decompression valve 4 goes out
Mouth is turned on mud pit 300.
As shown in figure 3, the semiclosed mud pressure keeping circulation technology of the present embodiment artesian water earth-boring construction is operationally, root
Set adjustable since the threshold values of relief valve 4 according to the artesian pressure and depth of stratum of drilling tapping position so that the mud in drilling
Slurry forms pressure balance with the water and soil on stratum；Ring of " height " the flow velocity mud with silt particle between orifice tube 100 and drilling rod 200
The first pipeline of shape space 1 enters second pipe 2, because mud first time flow direction changes and the cross-sectional area of second pipe 2
Relative with respect to the cross-sectional area of the first pipeline 1 to increase, liquid flowing is slow, then through bend loss 22, flows into slurry can 3, mud the
Secondary flow direction changes and mud flow section increases again, and speed slows down again, because the pressure relief opening of slurry can 3 is at the top of it,
Mud flowing changes direction, flows up, when the pressure in the slurry can 3 is more than set in advance adjustable since relief valve 4
During threshold values, mud is flowed into mud pit 300 through adjustable automatic decompression valve 4.Mud flows through adjustable pressure control separation of solid and liquid dress of the invention
Put, by the increase in section twice, flowing velocity slows down, and flowing changes direction twice, solid (sandstone) liquid (mud will be realized
Slurry) separate.After sandstone is separated, fall into storage slag chute 6, it is a certain amount of when reaching, the valve of slagging tap of the bottom of slurry can 3 can be closed, unload
Lower storage slag chute 6 carries out deslagging.
Above-described embodiment is only intended to clearly illustrate the invention example, and not has to the invention
The restriction of body implementation method.For those of ordinary skill in the field, can also make on the basis of the above description
The change or variation of other multi-forms.There is no need and unable to be exhaustive to all of implementation method.It is all of the invention
Spirit and principle within extend out it is any obvious change or variation still in the invention claim guarantor
Among shield scope.
Claims (10)
1. artesian water earth-boring is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that comprised the following steps：
(A) setting rig (600), mud pit (300), slush pump (700), port seal and separation of solid and liquid dress are respectively mounted
Put；
(B) slurry outlet of the mud pit (300) is connected with the mud entrance of the slush pump (700), by the mud
The slurry outlet of pump (700) is connected with the mud entrance of the rig (600)；
(C) mud entrance of the equipment for separating liquid from solid is connected with the slurry outlet of the port seal, the solid-liquid point
Slurry outlet from device is connected with the mud entrance of the mud pit (300)；
(D) artesian pressure and depth of stratum according to drilling tapping position set the pressure valve in the equipment for separating liquid from solid
Value so that the mud in drilling forms pressure balance with the water and soil on stratum；Pressure in the equipment for separating liquid from solid exceedes setting
Pressure threshold value when, the slurry outlet of the equipment for separating liquid from solid is opened and simultaneously mud is discharged in the mud pit (300)；Institute
When stating the pressure in equipment for separating liquid from solid less than the pressure threshold value for setting, the slurry outlet of the equipment for separating liquid from solid is closed；
(E) drilling rod (200) of the rig (600) carries out drilling construction through the port seal, and mud is by described
Port seal is escaped and enter in the equipment for separating liquid from solid.
2. artesian water earth-boring according to claim 1 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
The port seal includes orifice tube (100), ball valve (800) and hold-down gear (500), the one of the orifice tube (100)
End extend into drilling in, the hold-down gear (500) on the other end of the orifice tube (100), the ball valve (800)
On the orifice tube (100) between bore entrance and the hold-down gear (500)；The drilling rod (200) is worn successively
The mouth of pipe and the ball valve (800) that the hold-down gear (500), the orifice tube (100) are crossed away from drilling one end are bored
Construct in hole.
3. artesian water earth-boring according to claim 2 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
The equipment for separating liquid from solid includes the first pipeline (1), second pipe (2), slurry can (3) and adjustable automatic decompression valve (4)；It is described
The entrance of the first pipeline (1) and orifice tube (100) conducting, the outlet of first pipeline (1) and entering for the second pipe (2)
Mouth conducting；The outlet of the second pipe (2) is turned on the entrance of the slurry can (3), adjustable automatic decompression valve (4) peace
Sludge outlet at the top of the slurry can (3)；The drilling rod (200) through the orifice tube (100) pore, it is described
The pore cross-sectional area of second pipe (2) is more than the pore cross-sectional area of first pipeline (1), the horizontal stroke of the slurry can (3)
Pore cross-sectional area of the sectional area more than the second pipe (2).
4. artesian water earth-boring according to claim 3 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
The port seal also includes by-passing valve (900) and sludge discharge pipe, the sludge discharge pipe and the ball valve (800) and
The orifice tube (100) connection between bore entrance, the by-passing valve (900) is on the sludge discharge pipe；It is described
The entrance of the first pipeline (1) and the outlet of the sludge discharge pipe.
5. artesian water earth-boring according to claim 4 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
The bottom of the slurry can (3) is provided with slag notch (31), and slag notch (31) place is provided with valve of slagging tap (32)；It is described go out
Storage slag chute (6) is installed, the entrance of storage slag chute (6) connects with the outlet of the valve of slagging tap (32) below slag valve (32)
It is logical；Mud effuser (33) is installed, on the side conduit (34) of the mud effuser (33) at the top of the slurry can (3)
Air bleeding valve and pressure gauge (5) are installed.
6. artesian water earth-boring according to claim 5 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
The outlet of the mud effuser (33) is turned on the entrance of the adjustable automatic decompression valve (4), the adjustable automatic decompression valve
(4) outlet is turned on mud pit (300).
7., according to any described artesian water earth-boring semiclosed mud pressure keeping circulation technologies of construction of claim 3-6, it is special
Levy and be, the second pipe (2) including be fixedly connected and mutual conduction straight length (21) and bend loss (22), the straight tube
One end of section (21) is through the tank skin in the middle part of the slurry can (3) and is deep into the slurry can (3), the bend loss (22)
In the slurry can (3), the bottom of the outlet of the bend loss (22) towards the slurry can (3).
8. artesian water earth-boring according to claim 7 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
The fluid intake direction of first pipeline (1) falls in the fluid intake direction of the orifice tube (100)；First pipeline
(1) axis of the fluid issuing direction perpendicular to the straight length (21)；In the straight length (21) fluid flow direction perpendicular to
The fluid flow direction of bend loss (22) outlet.
9. artesian water earth-boring according to claim 7 is constructed semiclosed mud pressure keeping circulation technology, it is characterised in that
Draining and maintenance valve (7) are installed on the other end of the straight length (21).
10., according to equipment for separating liquid from solid under any described drilling construction mud dwell conditions of claim 3-6, its feature exists
In the ratio between, the pore cross-sectional area of the second pipe (2) and pore cross-sectional area of first pipeline (1) minimum 2:1；
The ratio between the cross-sectional area of the slurry can (3) and pore cross-sectional area of the second pipe (2) minimum 9:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008293.1A CN106801588B (en) | 2017-01-05 | 2017-01-05 | semi-closed slurry pressure-maintaining circulation process for drilling construction of confined water stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008293.1A CN106801588B (en) | 2017-01-05 | 2017-01-05 | semi-closed slurry pressure-maintaining circulation process for drilling construction of confined water stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106801588A true CN106801588A (en) | 2017-06-06 |
| CN106801588B CN106801588B (en) | 2019-12-06 |
Family
ID=58984361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710008293.1A Active CN106801588B (en) | 2017-01-05 | 2017-01-05 | semi-closed slurry pressure-maintaining circulation process for drilling construction of confined water stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106801588B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654202A (en) * | 2017-10-25 | 2018-02-02 | 安达市天屹桩基有限责任公司 | Mud circulating vehicle |
| CN108194078A (en) * | 2018-02-14 | 2018-06-22 | 北京泰利新能源科技发展有限公司 | A kind of geothermal well pneumatic down-hole hammer creeps into blowout prevention sampler |
| CN110042872A (en) * | 2019-04-24 | 2019-07-23 | 天津建岩岩土工程有限公司 | Pressure-maintaining structure and its pressure maintaining method during middle-size and small-size basement construction |
| EP4173719A4 (en) * | 2020-06-29 | 2024-07-03 | Shimadzu Corp | Sample purification device and analytical system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025335A1 (en) * | 2001-09-21 | 2003-03-27 | National Oilwell Norway As | Method of reducing the density of drilling mud |
| CN103313942A (en) * | 2010-10-29 | 2013-09-18 | 奥里格公司 | Method for separating liquid from suspended matter in a sludge and device for same |
| CN203196388U (en) * | 2013-03-29 | 2013-09-18 | 杭州民生机械制造有限公司 | Separator |
| CN103573198A (en) * | 2012-08-03 | 2014-02-12 | 中国石油化工股份有限公司 | Well tube pressure and flow rate management system and method |
-
2017
- 2017-01-05 CN CN201710008293.1A patent/CN106801588B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025335A1 (en) * | 2001-09-21 | 2003-03-27 | National Oilwell Norway As | Method of reducing the density of drilling mud |
| CN103313942A (en) * | 2010-10-29 | 2013-09-18 | 奥里格公司 | Method for separating liquid from suspended matter in a sludge and device for same |
| CN103573198A (en) * | 2012-08-03 | 2014-02-12 | 中国石油化工股份有限公司 | Well tube pressure and flow rate management system and method |
| CN203196388U (en) * | 2013-03-29 | 2013-09-18 | 杭州民生机械制造有限公司 | Separator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654202A (en) * | 2017-10-25 | 2018-02-02 | 安达市天屹桩基有限责任公司 | Mud circulating vehicle |
| CN108194078A (en) * | 2018-02-14 | 2018-06-22 | 北京泰利新能源科技发展有限公司 | A kind of geothermal well pneumatic down-hole hammer creeps into blowout prevention sampler |
| CN110042872A (en) * | 2019-04-24 | 2019-07-23 | 天津建岩岩土工程有限公司 | Pressure-maintaining structure and its pressure maintaining method during middle-size and small-size basement construction |
| EP4173719A4 (en) * | 2020-06-29 | 2024-07-03 | Shimadzu Corp | Sample purification device and analytical system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106801588B (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106801588A (en) | The semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction | |
| CN104864177A (en) | Trenchless pipeline traversing method integrating drilling and propping | |
| WO2020082716A1 (en) | Multi-seam independent gas-bearing system pressure control and single-pump production device and production method | |
| CN102003140A (en) | Traversing reverse circulating drilling method of horizontal directional drilling pipeline and special drilling bit | |
| CN102434716B (en) | Flexible pipe assisted type pipeline returning method | |
| CN112761583A (en) | Underground hydraulic lifting in-situ sand prevention and sand removal oil extraction and gas production system and method | |
| CN108222894A (en) | It is a kind of to melt the silt particle backfilling apparatus adopted for gas hydrates time tractive current | |
| CN107575249A (en) | A kind of high-pressure slurry wall protecting method and device | |
| CN103758144B (en) | Tube well used for unwatering and pressure-reducing drainage and drainage method of tube well | |
| CN103912257B (en) | A kind of dragging multiple fracturing device with pressure | |
| CN1587634A (en) | Compressed air circulation sand cleaning process and matching device | |
| CN106014370A (en) | Oil-pipe under-pressure dragging fracturing device and technology | |
| CN207406342U (en) | A kind of filling system for the post processing of caisson wall wall | |
| CN105274994B (en) | Anti-suck sludge proof grouting process and grouting device in deep saturated sand | |
| CN103195470A (en) | Gas discharge collecting device for drilling construction | |
| CN105545279B (en) | A kind of defeated device of the pipe of gas hydrates | |
| CN107676051A (en) | Coal bed gas well annular pressurizing coal powder fishing device and method | |
| CN106761499A (en) | Equipment for separating liquid from solid under artesian water earth-boring construction slurry dwell condition | |
| CN207879289U (en) | Well workover reacting cycle drags for sand sand-precipitating tube | |
| CN114941510B (en) | Circulating blocking-removing sand-fishing process system | |
| CN203584385U (en) | Double-helical-blade diversion underground cyclone desander | |
| CN107366520A (en) | A kind of robot switching sliding sleeve | |
| CN203603815U (en) | Through scraping integration down well equipment | |
| CN102966376B (en) | Vacuum negative pressure quick unwatering method for ore body | |
| CN105298443A (en) | Oil pipe float valve and blowout prevention, gas lift and fracture combined operation method for underbalance well completion oil pipe descending |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |