CN109209257A - A kind of full well section construction operation device with pressure and the construction technology using the device - Google Patents
A kind of full well section construction operation device with pressure and the construction technology using the device Download PDFInfo
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- CN109209257A CN109209257A CN201811075822.0A CN201811075822A CN109209257A CN 109209257 A CN109209257 A CN 109209257A CN 201811075822 A CN201811075822 A CN 201811075822A CN 109209257 A CN109209257 A CN 109209257A
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 230000001256 tonic effect Effects 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 210000004262 dental pulp cavity Anatomy 0.000 claims description 39
- 210000002445 nipple Anatomy 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000010008 shearing Methods 0.000 claims description 8
- 230000001737 promoting effect Effects 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 244000147058 Derris elliptica Species 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000020477 pH reduction Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 241000191291 Abies alba Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000007630 basic procedure Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008054 signal transmission 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
-
- 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
- E21B47/00—Survey of boreholes or wells
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of full well section construction operation device with pressure and using the construction technology of the device, wherein the device includes the slave function assembly set gradually from bottom to top, function of tonic chord assembly and travelling function assembly, the travelling function assembly is connected with the power hoisting device that function is above proposed with pressurization, above mentioning or transferring for the function assembly that moves about, reliable sealing is realized between the travelling function assembly and function of tonic chord assembly, it is tightly connected between the function of tonic chord assembly and slave function assembly, slave function assembly lower end is connect by well head four-way with wellhead sealing.The invention also discloses a kind of construction technologies using the device.
Description
Technical field
The present invention relates to oilfield well construction operation device with pressure and using the construction technology technology of the device, mainly
There is later maintenance maintenance when pressure for oilfield well.
Background technique
In oil gas field production process, regular maintenance is carried out to oil/gas well, for the dimension of the oil/gas well with pressure
Shield generally uses two schemes at present: one is well killing fluid kill-job is used, but the oil-gas pipeline in well can be blocked after kill-job,
Although can be that oil/gas well is overhauled, tremendous influence be caused to well yield after maintenance, which has passed through
Gradually eliminate；Another kind is upkeep operation with pressure, and basic procedure is the channel beaten in blanking plug closure flow string, utilizes blowout prevention
Device combination is implemented to seal to oil sets annular space, above proposes the construction equipment completion maintenance of function being equipped with to pressurize, this scheme
Feature is that blanking plug must effectively be blocked in the last root of flow string, but actual flow string generally can be all equipped with respectively
Substantially all there is undergauge phenomenon in the downhole tool of kind, downhole tool, be difficult to reality substantially so carrying out last root canal column effectively to block
Existing, present technique carries out secondary plugging or carries out emitting spray robbing to spray work after typically above mentioning to blanking plug, there are safety
And the problem of environmental pollution, so being generally only applied to well, for oil/gas well, the construction technology is unable to satisfy site operation
It is required that.
The present invention has carried out beneficial improvement to overcome drawbacks described above.
Summary of the invention
It is an object of the invention to solve above-mentioned deficiency in the prior art, a kind of full well section construction operation with pressure is provided
Device and construction technology using the device, the present invention by oil sets annular space in full well section construction operation device with pressure and
Two sealed pressure cabins are established in oil pipe, and to realize, pressure and oil jacket annular are empty in the tubing string in oil well pipe lifting process
Between the stabilization of pressure realize full well section Operating Pressure truly.
Realize that foregoing invention purpose uses following technical scheme:
A kind of full well section construction operation device with pressure, is characterized in that the device includes the pair set gradually from bottom to top
Function assembly, function of tonic chord assembly and travelling function assembly, the travelling function assembly, which is connected with, to be had in pressurization
The power hoisting device for proposing function, above mentioning or transferring for the function assembly that moves about, the travelling function assembly and master
Reliable sealing is realized between function assembly, is tightly connected between the function of tonic chord assembly and slave function assembly, the pair
Function assembly lower end is connect by well head four-way with wellhead sealing；
Further, the function of tonic chord assembly includes the hollow telescoping tube being arranged from bottom to top, upper box cupling survey meter, upper card
Watt, upper half envelope, upper full envelope, half envelope of top and closed half seal, it is close between each component that the function of tonic chord assembly is arranged from top to bottom
Envelope connection, and upper half envelope and the upper vertical interval sealed entirely are greater than string collar length；
Further, the slave function assembly includes the lower box cupling survey meter being arranged from bottom to top, the full envelope of safety, safety half
Envelope, safety slip, the full envelope of shearing, lower half is sealed and lower slips, between each component that the slave function assembly is arranged from top to bottom
Oil gas tubing string is sheared and is sealed in oil/gas well using sealed connection, when wherein the full envelope of the shearing is for there is fortuitous event
Pressure, to prevent there are the dangerous situations such as oil gas blowout；
Further, the travelling function assembly includes half envelope of travelling, traveling slip and seal pipe, half envelope of travelling with
Reliable sealing is realized between closed half envelope；
Further, it is provided between travelling function assembly and the function of tonic chord assembly for the hydraulic of oil well pipe shackle
Pincers, the box cupling shackle for that will be located between upper half envelope and upper full envelope；
Further, the hollow telescoping tube is that can be somebody's turn to do with hydraulic power and by the hollow drive telescoping tube of hydraulic control
Hollow telescoping tube and upper slips, lower slips cooperate the promotion that tubing string can be achieved.
A kind of construction technology using the full well section construction operation device with pressure, includes the following steps:
Step 1: tubing string prepares before being promoted: temporarily being blocked up, is removed to hanger inner hole using machine plugging device or chemical plugging agent
Full well section construction operation device with pressure is mounted on well head four-way by wellhead oil tree or christmas tree；
Step 2: hoisting hanger: by pipe nipple below the inner cavity of function of tonic chord assembly and slave function assembly, pipe nipple and suspension
After the connection of device make-up, upper half envelope is closed, by pipe nipple hoisting hanger, when hanger is promoted to upper half envelope lower section, under closing
Half seals, while opening upper half envelope, continues above to mention hanger, after hanger is proposed from function of tonic chord assembly upper end, by hydraulic
Pincers unloading pipe nipple is transferred travelling function assembly by power hoisting device, until hanger reaches in seal pipe and is located at
Above traveling slip, in seal pipe, after forming reliable sealing between half envelope of travelling and closed half envelope, traveling slip and trip are closed
Dynamic half seals, and opens upper half envelope, and power hoisting device drives travelling function assembly to promote tubing string；
Step 3: promoting first and the second root canal column: driving travelling function assembly riser column mistake in power hoisting device
Cheng Zhong, when the box cupling between the first root canal column and the second root canal column reaches lower box cupling survey meter position, lower box cupling survey meter meeting
It detects the box cupling and issues pulse signal, successively upper half envelope is closed in operation at this time, opens lower half envelope；Tubing string continues uplink, when
When the box cupling reaches upper box cupling survey meter position, upper box cupling survey meter can detect box cupling and issue pulse signal, at this time successively
Lower half envelope is closed, upper half envelope is opened；It is honored as a queen when the box cupling by upper half and closes upper half envelope, meanwhile, stop tubing string enhancing action, makes
The box cupling rests between upper half envelope and upper full envelope, then operates upper slips clamping, and closes top half and seal, and opens simultaneously travelling card
Watt；
Step 4: box cupling shackle simultaneously proposes upper end tubing string: rotating the first root canal column with hydraulic tongs, will be located at upper half envelope and upper full envelope
Between box cupling shackle, after the completion of shackle, close traveling slip turn on the power and mention at this point, the second root canal column is blocked by upper slips
Device is risen, the first root canal column is slowly above mentioned, when the first root canal column end is honored as a queen entirely by upper, full envelope in closing opens top half
First root canal column is continued above to mention being proposed that tubing string, and the tubing string of proposition sequence is put to oil pipe seat by envelope；
Step 5: the upper end box cupling of the second root canal column is simultaneously sent into seal pipe by building seal chamber: starting power hoisting device will be swum
Dynamic function assembly is transferred to function of tonic chord assembly, is closed closed half and is sealed, travelling function assembly and function of tonic chord assembly it
Between formed effectively sealing after, openings in entirely seal, upper slips are in gripping orientation at this time, operate hollow telescoping tube, make it is hollow stretch
Related tubing string is managed to extend to hollow telescoping tube total travel；Successively operation lower slips are closed again, after upper slips are opened, are operated again
Hollow telescoping tube retracts, while the function assembly that moves about is servo-actuated downlink, and the upper end box cupling of the second root canal column is sent into seal pipe；
Step 6: promoting tubing string: successively closing half envelope of travelling, traveling slip, upper half envelope, open simultaneously lower half envelope, power promotes dress
It sets and promotes travelling function assembly, mention tubing string slowly above, during tubing string above mentions, can use and disposably promote tubing string
In place, the mode repeatedly promoted can also be taken；When using multiple hoisting way, after tubing string is promoted to certain altitude, according to
Secondary closing upper slips open traveling slip, at this point, half envelope of travelling and upper half envelope are in close state, operation travelling function combination
Then body downlink successively closes traveling slip again, opens upper slips, again above mentions tubing string, due to tubing string in lifting process
Upper and lower side stress is consistent, and strut stability problem is not present, avoids oil pipe lateral bending；
Step 7: tubing string is promoted: operation power hoisting device continues to lift up tubing string, when there is box cupling by lower box cupling survey meter,
Lower box cupling survey meter can detect the box cupling and issue signal, and when the box cupling is honored as a queen by lower half, closing lower half envelope, tubing string continues
It is lifted up, after upper box cupling survey meter detects the box cupling and issues pulse signal, opens upper half envelope, which passes through upper half
It is honored as a queen, closes upper half envelope, meanwhile, stop tubing string enhancing action, rests on the box cupling between upper half envelope and upper full envelope, then grasp
Make upper slips clamping, closes top half and seal；
Step 8: being repeated in step 4, step 5, step 6 and step 7, closed safe seals full after promoting complete well section tubing string；
Step 9: tubing string is gone into the well: when completing the various processes such as well-flushing, acidification, after last root canal column installs well tool, utilizing travelling
The traveling slip clamping tubing string in function assembly, and on the end of the tubing string transferred to safety half sealing, at this point, closing
Upper half envelope opens safety and seals and make tubing string downlink entirely, when the tubing string top box cupling is on upper half envelope, closes lower half envelope,
It opens upper half envelope and pours into box cupling, then, tubing string continues traveling downwardly, and when box cupling comes downwards on lower half envelope, closes upper half envelope, opens
Lower half envelope, whole root canal column pours into, sequentially into complete well.
Beneficial effects of the present invention: compared with prior art, remarkable result of the invention is: the present invention utilizes travelling function
The full well section construction in work progress with pressure is completed in the combination of energy assembly, function of tonic chord assembly, can not launch blanking plug,
Situations such as undergauge that tool occurs in the fouling undergauge, well of tubing string appearance in well simultaneously, can also be evaded, and realize really meaning
The full well section construction with pressure of justice；Upper half envelope, upper full envelope and top half in function of tonic chord assembly are sealed, and cooperation hydraulic tongs realize that tubing string unloads
Detain and realize in confined space the function of shackle, well pressure partition；Half envelope of travelling, traveling slip and sealing in travelling assembly
Pipe combines the inner hole that can seal tubing string, and can accommodate the tubing string of whole root canal column or limit length, and on tubing string top
Consistent with end stress, tubing string is not pressurized, and evades " pressure bar stabilization " problem, primary to be proposed that or be pressed into a root canal column, significantly
Construction efficiency is improved, the present invention combines existing industrial technology, and sensors configured has automation, intelligent potential quality, and safety is more
Height, not only can once promote lower repoussage root canal column, but also segmentation pressurization can be realized to tubing string, the scope of application cover oil-water-gas it is low in
Gao Jing can push the development of domestic petroleum cause.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of full well section of the invention construction operation device with pressure；
Appended drawing reference: 1. well head four-ways；2. lower box cupling survey meter；3. the full envelope of safety；4. safety half is sealed；5. safety slip；6. cutting
Cut full envelope；7. lower half is sealed；8. lower slips；9. hollow telescoping tube；Box cupling survey meter on 10.；11. upper slips；12. upper half is sealed；13.
Upper full envelope；14. top half is sealed；15. closed half seals；16. travelling half is sealed；17. traveling slip；18. seal pipe.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and embodiments.
The embodiment of the present invention overall structure is refering to what is shown in Fig. 1, a kind of full well section construction operation device with pressure, the device packet
Include the slave function assembly set gradually from bottom to top, function of tonic chord assembly and travelling function assembly, function of tonic chord assembly
Including the hollow telescoping tube 9, upper box cupling survey meter 10, upper slips 11, upper half envelope 12, upper full envelope 13, top half being arranged from bottom to top
Envelope 14 and closed half envelope 15 are tightly connected between each component of function of tonic chord assembly, and upper half envelope 12 and upper full envelope 13 is vertical
Spacing is greater than string collar length, wherein in the present embodiment, hollow telescoping tube 9 is that with hydraulic power and can pass through hydraulic behaviour
The hollow drive telescoping tube of control, the hollow telescoping tube and upper slips 11, lower slips 8 cooperate the promotion that tubing string can be achieved, in
Lost motion power telescoping tube can simplify required equipment, only need a mast cooperation travelling assembly that construction with pressure can be realized.
In oil field Operating Pressure field, which can be with components such as hollow hydraulic telescoping tubes (bar)；It is stretched if this is hollow
The draw is used without self-powered mode, and travelling function assembly can also be cooperated to complete corresponding function.
Slave function assembly includes the lower box cupling survey meter 2 being arranged from bottom to top, the full envelope 3 of safety, half envelope 4 of safety, safety
Slips 5, the full envelope 6 of shearing, lower half seal 7 and lower slips 8, use and are tightly connected between each component, wherein the shearing is complete to seal 6 use
Oil gas tubing string is sheared to when there is fortuitous event and is sealed the pressure in oil/gas well, to prevent there are the dangerous feelings such as oil gas blowout
Condition；Dynamic function assembly includes half envelope 16 of travelling, traveling slip 17 and seal pipe 18, half envelope 16 of travelling with it is described closed
Reliable sealing is realized between half envelope 15.Travelling function assembly is connected with the power hoisting device that function is above proposed with pressurization, uses
Above mentioning or transferring in travelling function assembly moves about and realizes reliable sealing between function assembly and function of tonic chord assembly,
It is tightly connected between the function of tonic chord assembly and slave function assembly, slave function assembly lower end passes through well head four-way 1
It is connect with wellhead sealing.Slave function assembly and function of tonic chord assembly, can be combined into a big entirety, and cooperation travelling half is sealed
16 and upper half envelope 12 realize the sealing on pipe string top and pipe string lower part, and then realize the full well section sealing of pipe string, during which pipe string
Top is consistent with lower part stress, and " pressure bar stabilization " problem is also just not present, can once be promoted or lower repoussage root canal column.
The hydraulic tongs for oil well pipe shackle are provided between travelling function assembly and function of tonic chord assembly, being used for will
Box cupling shackle between upper half envelope 12 and upper full envelope 13.
Each half envelope component, each full envelope component, hydraulic tongs and hollow telescoping tube etc. can be in the above-mentioned technical solutions
Using hydraulic-driven, the distal end PLC for the signal transmission that the components such as upper box cupling survey meter 10, lower box cupling survey meter 2 are detected is controlled
Device processed, then PLC controller combined process flow conditions are sealed by the open and close control half of solenoid valve, are sealed entirely, hollow telescoping tube, liquid
Each executive component automatic open close such as pressing tongs realizes remote control, reduces construction risk, guarantees operator's safety.To this field
For technical staff, remote control can also be realized using other control modes such as single-chip microcontroller, ARM.
The present invention combines existing industrial technology, and sensors configured has automation, intelligent potential quality, and safety is higher, both
Lower repoussage root canal column can be once promoted, and can realize segmentation pressurization to tubing string, power is using net electricity, low-carbon environment-friendly.
Using the construction technology of above-mentioned full well section construction operation device with pressure, including the following steps:
Step 1: tubing string prepares before being promoted: temporarily being blocked up, is removed to hanger inner hole using machine plugging device or chemical plugging agent
Full well section construction operation device with pressure is mounted on well head four-way 1 by wellhead oil tree or christmas tree；
Step 2: hoisting hanger: by pipe nipple below the inner cavity of function of tonic chord assembly and slave function assembly, pipe nipple and suspension
After the connection of device make-up, upper half envelope 12 is closed, by pipe nipple hoisting hanger, when hanger, which is promoted to upper half, seals 12 lower section, is closed
Lower half envelope 7 is closed, while opening upper half envelope 12, continues above to mention hanger, after hanger is proposed from function of tonic chord assembly upper end, is led to
Hydraulic tongs unloading pipe nipple is crossed, is transferred travelling function assembly by power hoisting device, until hanger reaches seal pipe 18
It is interior and be located at the top of traveling slip 17, in seal pipe 18, after forming reliable sealing between half envelope 16 of travelling and closed half envelope 15,
Half envelope 16 of traveling slip 17 and travelling is closed, opens upper half envelope 12, power hoisting device drives travelling function assembly by tubing string
It is promoted；
Step 3: promoting first and the second root canal column: driving travelling function assembly riser column mistake in power hoisting device
Cheng Zhong, when the box cupling between the first root canal column and the second root canal column reaches lower box cupling survey meter position 2, lower box cupling survey meter 2
It can detect the box cupling and issue pulse signal, successively upper half envelope 12 is closed in operation at this time, opens lower half envelope 7；On tubing string continues
Row, when the box cupling reaches upper 10 position of box cupling survey meter, upper box cupling survey meter 10 can detect box cupling and issue pulse signal,
Lower half envelope 7 is successively closed at this time, opens upper half envelope 12；The closing upper half envelope 12 after the box cupling is by upper half envelope 12, meanwhile, stop
Tubing string enhancing action rests on the box cupling between upper half envelope 12 and upper full envelope 13, then operates 11 clamping of upper slips, and close
Half envelope 14 of top, opens simultaneously traveling slip 17；
Step 4: box cupling shackle simultaneously proposes upper end tubing string: rotating the first root canal column with hydraulic tongs, will be located at upper half envelope 12 and upper complete
Box cupling shackle between envelope 13 after the completion of shackle, is closed traveling slip 17 and is opened at this point, the second root canal column is blocked by upper slips 11
Start force lifting apparatus, the first root canal column is slowly above mentioned, after the first root canal column end is by upper full envelope 13, full envelope in closing
13, half envelope 14 of top is opened, the first root canal column is continued above to mention being proposed that tubing string, and the tubing string of proposition sequence is put to oil pipe
Seat；
Step 5: the upper end box cupling of the second root canal column is simultaneously sent into seal pipe 18 by building seal chamber: starting power hoisting device will
Travelling function assembly is transferred to function of tonic chord assembly, and closed half envelope 15 is closed, and travelling function assembly is combined with the function of tonic chord
After forming effectively sealing between body, full envelope 13 in opening, upper slips 11 are in gripping orientation at this time, operate hollow telescoping tube 9, make
The related tubing string of hollow telescoping tube 9 is extended to hollow 9 total travel of telescoping tube；Successively operation lower slips 8 are closed again, and upper slips 11 are beaten
After opening, hollow telescoping tube 9 is operated again and is retracted, while the function assembly that moves about is servo-actuated downlink, by the upper termination of the second root canal column
Hoop is sent into seal pipe 18；
Step 6: promoting tubing string: successively closing half envelope 16 of travelling, traveling slip 17, upper half envelope 12, open simultaneously lower half envelope 7, move
Force lifting apparatus promotes travelling function assembly, mentions tubing string slowly above, during tubing string above mentions, can use and disposably will
Tubing string is promoted in place, can also take the mode repeatedly promoted；When using multiple hoisting way, when tubing string is promoted to certain height
It after degree, successively closes upper slips 11, open traveling slip 17, at this point, half envelope 16 of travelling and upper half envelope 12 are in close state, grasp
Make travelling function assembly downlink, then successively closes traveling slip 17 again, opens upper slips 11, again above mention tubing string,
Since tubing string upper and lower side stress is consistent in lifting process, strut stability problem is not present, avoids oil pipe lateral bending；
Step 7: tubing string is promoted: operation power hoisting device continues to lift up tubing string, when there is box cupling to pass through lower box cupling survey meter 2
When, lower box cupling survey meter 2 can detect the box cupling and issue signal, after the box cupling is by lower half envelope 7, close lower half envelope 7, pipe
Column continues up promotion, after upper box cupling survey meter 10 detects the box cupling and issues pulse signal, opens upper half envelope 12, this connects
After hoop is by upper half envelope 12, upper half envelope 12 is closed, meanwhile, stop tubing string enhancing action, so that the box cupling is rested on upper half and seal 12 Hes
Between upper full envelope 13,11 clamping of upper slips is then operated, closes half envelope 14 of top；
Step 8: being repeated in step 4, step 5, step 6 and step 7, closed safe seals full after promoting complete well section tubing string
3；
Step 9: tubing string is gone into the well: when completing the various processes such as well-flushing, acidification, after last root canal column installs well tool, utilizing travelling
Tight tubing string of traveling slip card 17 in function assembly, and the end of the tubing string is transferred to safety half and is sealed on 4, at this point,
Upper half envelope 12 is closed, the full envelope 3 of safety is opened and makes tubing string downlink, when the tubing string top box cupling is on upper half envelope 12, is closed
Lower half envelope 7 is closed, upper half envelope 12 is opened and pours into box cupling, then, tubing string continues traveling downwardly, and when box cupling comes downwards on lower half envelope 7, closes
Half envelope 12 is closed, opens lower half envelope 7, whole root canal column pours into, sequentially into complete well
Embodiment described above only expresses one embodiment of the present invention, and but it cannot be understood as to the present invention
The limitation of range.It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (7)
1. a kind of full well section construction operation device with pressure, it is characterised in that: the device includes the secondary function set gradually from bottom to top
Energy assembly, function of tonic chord assembly and travelling function assembly, the travelling function assembly is connected with, and there is pressurization above to mention
The power hoisting device of function, above mentioning or transferring for the function assembly that moves about, the travelling function assembly and main function
Reliable sealing can be realized between assembly, be tightly connected between the function of tonic chord assembly and slave function assembly, the pair function
Energy assembly lower end is connect by well head four-way with wellhead sealing.
2. a kind of full well section construction operation device with pressure according to claim 1, it is characterised in that: the function of tonic chord combination
Body includes the hollow telescoping tube being arranged from bottom to top, upper box cupling survey meter, upper slips, upper half envelope, upper full envelope, half envelope of top and closed
Half seals, and is tightly connected between each component that the function of tonic chord assembly is arranged from top to bottom, and upper half envelope and it is upper seal entirely it is vertical
Spacing is greater than string collar length.
3. a kind of full well section construction operation device with pressure according to claim 1, it is characterised in that: the slave function combination
Body include the lower box cupling survey meter being arranged from bottom to top, the full envelope of safety, half envelope of safety, safety slip, the full envelope of shearing, lower half seal and
Lower slips, using being tightly connected between each component that the slave function assembly is arranged from top to bottom, wherein the full envelope of the shearing
Oil gas tubing string is sheared to and is sealed the pressure in oil/gas well, to prevent there are the dangerous feelings such as oil gas blowout when for fortuitous event occur
Condition.
4. a kind of full well section construction operation device with pressure according to claim 2, it is characterised in that: the slave function combination
Body include the lower box cupling survey meter being arranged from bottom to top, the full envelope of safety, half envelope of safety, safety slip, the full envelope of shearing, lower half seal and
Lower slips, using being tightly connected between each component that the slave function assembly is arranged from top to bottom, wherein the full envelope of the shearing
Oil gas tubing string is sheared to and is sealed the pressure in oil/gas well, to prevent there are the dangerous feelings such as oil gas blowout when for fortuitous event occur
Condition.
5. a kind of full well section construction operation device with pressure according to claim 2, it is characterised in that: the travelling functional group
Zoarium includes half envelope of travelling, traveling slip and seal pipe, is realized between half envelope of travelling and closed half envelope reliable close
Envelope.
6. a kind of full well section construction operation device with pressure according to claim 4, it is characterised in that: the hollow telescoping tube
For that can be matched with hydraulic power and by the hollow drive telescoping tube of hydraulic control, the hollow telescoping tube with upper slips, lower slips
Close the promotion that tubing string can be achieved.
7. a kind of construction technology using full well section as claimed in any one of claims 1 to 6 construction operation device with pressure, special
Sign is: the technique comprises the following steps:
Step 1: using machine plugging device, perhaps chemical plugging agent is temporarily blocked up dismounting wellhead oil tree to hanger inner hole or is adopted
Full well section construction operation device with pressure is mounted on well head four-way by gas tree；
Step 2: by pipe nipple below the inner cavity of function of tonic chord assembly and slave function assembly, pipe nipple is connect with hanger make-up
Afterwards, upper half envelope is closed, lower half envelope is closed when hanger is promoted to upper half envelope lower section by pipe nipple hoisting hanger, opens simultaneously
Upper half envelope is opened, continues above to mention hanger, after hanger is proposed from function of tonic chord assembly upper end, unloads pipe nipple by hydraulic tongs,
Travelling function assembly is transferred by power hoisting device, until hanger reaches in seal pipe and is located on traveling slip
Side after forming reliable sealing between half envelope of travelling and closed half envelope, closes traveling slip and travelling half is sealed, open in seal pipe
Upper half envelope is opened, power hoisting device drives travelling function assembly to promote tubing string；
Step 3: during power hoisting device drives travelling function assembly riser column, when the first root canal column and second
When box cupling between tubing string reaches lower box cupling survey meter position, lower box cupling survey meter will receive the pulse signal of box cupling sending,
Successively upper half envelope is closed in operation at this time, opens lower half envelope；Tubing string continues uplink, when the box cupling reaches upper box cupling survey meter position
When, upper box cupling survey meter will receive the pulse signal of box cupling sending, successively close lower half envelope at this time, open upper half envelope；When this connects
Hoop is honored as a queen by upper half closes upper half envelope, meanwhile, stop tubing string enhancing action, so that the box cupling is rested on upper half and seal and upper seal it entirely
Between, upper slips clamping is then operated, and close top half and seal, opens simultaneously traveling slip；
Step 4: rotating the first root canal column with hydraulic tongs, the box cupling shackle between upper half envelope and upper full envelope will be located at, shackle is completed
Afterwards, traveling slip is closed, at this point, the second root canal column is blocked by upper slips, turn on the power lifting device, slowly by the first root canal column
It above mentions, when the first root canal column end is honored as a queen entirely by upper, full envelope in closing is opened top half and sealed, the first root canal column is continued above to mention
I.e. it is proposed that tubing string, and the tubing string of proposition sequence is put to oil pipe seat；
Step 5: starting power hoisting device transfers travelling function assembly to function of tonic chord assembly, closes closed half and seals,
It moves about after forming effectively sealing between function assembly and function of tonic chord assembly, full envelope in opening, upper slips are in clamping at this time
State operates hollow telescoping tube, extends the related tubing string of hollow telescoping tube to hollow telescoping tube total travel；Under successively operating again
Slips is closed, and after upper slips are opened, is operated hollow telescoping tube again and is retracted, while the function assembly that moves about is servo-actuated downlink, by the
The upper end box cupling of two root canal columns is sent into seal pipe；
Step 6: successively closing half envelope of travelling, traveling slip, upper half envelope, open simultaneously lower half envelope, power hoisting device promotes trip
Dynamic function assembly, mentions tubing string slowly above, during tubing string above mentions, can use and disposably promote tubing string in place,
The mode repeatedly promoted can be taken；When using multiple hoisting way, after tubing string is promoted to certain altitude, successively close
Slips opens traveling slip, at this point, half envelope of travelling and upper half envelope are in close state, operation travelling function assembly downlink, and so
It successively closes traveling slip again afterwards, open upper slips, again above mention tubing string, due to tubing string upper and lower side stress in lifting process
Unanimously, strut stability problem is not present, avoids oil pipe lateral bending；
Step 7: operation power hoisting device continues to lift up tubing string, and when there is box cupling by lower box cupling survey meter, lower box cupling is visited
Surveying instrument will receive the signal of box cupling sending, and when the box cupling is honored as a queen by lower half, closing lower half envelope, tubing string continues up promotion, when
After upper box cupling survey meter receives the signal of the box cupling, upper half envelope is opened, which is honored as a queen by upper half, closes upper half envelope, together
When, stop tubing string enhancing action, rests on the box cupling between upper half envelope and upper full envelope, then operate upper slips clamping, close
Top half is sealed；
Step 8: being repeated in step 4, step 5, step 6 and step 7, closed safe seals full after promoting complete well section tubing string；
Step 9: when completing the various processes such as well-flushing, acidification, after last root canal column installs well tool, utilizing travelling function assembly
In the traveling slip clamping tubing string, and on the end of the tubing string transferred to safety half sealing, at this point, closing upper half envelope, beat
It opens safety and seals and make tubing string downlink entirely, when the tubing string top box cupling is on upper half envelope, close lower half envelope, open upper half envelope
Box cupling is poured into, then, tubing string continues traveling downwardly, and when box cupling comes downwards on lower half envelope, closes upper half envelope, opens lower half envelope, whole
Root canal column pours into, sequentially into complete well.
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