CN107939358A - Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method - Google Patents
Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method Download PDFInfo
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- CN107939358A CN107939358A CN201711213287.6A CN201711213287A CN107939358A CN 107939358 A CN107939358 A CN 107939358A CN 201711213287 A CN201711213287 A CN 201711213287A CN 107939358 A CN107939358 A CN 107939358A
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- Prior art keywords
- tubing string
- screen casing
- open hole
- carbonate rock
- hydrocarbon reservoir
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 41
- 239000011435 rock Substances 0.000 title claims abstract description 40
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 37
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 37
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 37
- 238000012805 post-processing Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 46
- 239000003129 oil well Substances 0.000 claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 239000010779 crude oil Substances 0.000 abstract description 7
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 16
- 239000010410 layer Substances 0.000 description 9
- 230000009466 transformation Effects 0.000 description 7
- 241001074085 Scophthalmus aquosus Species 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of carbonate rock hydrocarbon reservoir open hole completion tubing string, including axially sequentially connected packer, safety joint, screen casing and blind plugging, the blind plugging is in the bottom of the tubing string, for carrying out closure sand control to the screen casing, the screen casing is used for stabilizing borehole and sand control, when the safety joint is used for the post processing of the tubing string, the screen casing that plays the role of giving up connected with blind plugging to be formed it is integrally-built.The carbonate rock hydrocarbon reservoir open hole completion tubing string tripping in Open-Hole Section can effectively support the reservoir borehole wall, avoid burying payzone because of reservoir cave-in, cause the oil well underproduction stop production the problem of；It also avoid sand washing at the same time, drag for the accident of the bit freezing that collapses, cause secondary caused by sand.On the other hand, effective underground sand-prevention can be carried out, avoids sand grains from causing holddown, stifled pump problem into oil well pump with crude oil, extends pump detection period, saved operating expenses.The present invention also provides a kind of post-processing method of carbonate rock hydrocarbon reservoir open hole completion tubing string.
Description
Technical field
The present invention relates to oil production equipment and DP technology technical field, more particularly to a kind of carbonate rock hydrocarbon reservoir bore hole
Well completion tubular column and post-processing method.
Background technology
In the explored oil and gas reserves in the whole world, 60% is Marine Facies Carbonate Reservoir.Carbonate reservoir becomes oil
The key areas of gas exploration exploitation.The carbonate rock hydrocarbon reservoir distribution in China is also very extensive, and exploration-development potential is huge.Carbonic acid
Rock salt reservoir generally uses barefoot completion.Strata pressure can occur after drilling well, acid fracturing, completion, water filling, oil recovery and measure operation
Large change, it will destroy the pressure balance in well, can undoubtedly cause the redistribution of wellbore rock stress, when it is made a concerted effort
When having exceeded rock strength, the borehole wall will unstability, in turn result in the borehole wall and shake out and cave in.Mainly cause asking for following three aspects
Topic：1st, oil-well wall caves in, buries payzone, big to yield effect, and operating cost is high；2nd, sand washing, to drag for sand risk big, be easy to cause
It is secondary to collapse, cause lock of tool drilling；3rd, the easy sand card of rod-pumped well, electric pump well, pump detection period are short.
The oil well to shake out in cave-in or well, if stratum primary energy deficiency or flow production for a period of time after ground
, it is necessary to when turning to take out exploitation, the sand grains in crude oil will block up card oil well pump for layer energy attenuation, cause the inspection pump that takes place frequently, increase exploitation
Cost and exploitation yield.In order to solve the problems, such as this, often using suspension sand control of giving up, i.e., using the lower side for hanging sand control screen of pump
Formula controls the sand content into pump, and perforation is set on sand-proof pipe, can only allow oil gas by the way that and solid gravel cannot be introduced into, so
In casing under pump after mounting sand-proof pipe, oil gas can be mined to ground by sand-proof pipe, and by the sand of sand-proof pipe barrier
Then sink to shaft bottom.When being overhauled to pump, then carry out sand removal operation.Although this technology extends the pump overhaul period, but sink to well
The sand at bottom easily buries reservoir.
For suspension sand control produced problem of giving up, existing means are that an anti-sand-catching apparatus is set below oil well pump,
To be filtered to the sandy crude in oil well, when crude oil be pumped to by device in oil well pump, and the gravel included in crude oil
It is blocked and falls into bottom of device.So as to play the role of sand control and sand setting.The technology can sand control again can sand setting, when operation, can
Withdrawing device, avoids the long construction period for dragging for abrasive band and coming, the problems such as operating cost is high.But method is in the barefoot interval borehole wall without branch
Support, for the cave-in phenomenon caused by shaking out seriously, it is impossible to play the role of stabilizing borehole.
In order to solve the problems, such as to appear above, develop payzone suspension sand control technique again in the prior art, that is, hang slot
Screen casing stops bulky grain reservoir sand using screen casing, accumulates to form sand block barrier in the borehole wall and screen casing annular space, play to artificial bottom of a well
Prevent the effect of formation sand production, while play the role of stabilizing borehole.But once tubing string sand buries, lower part tubing string is not easily taken out,
And then influence later stage operation, such as sidetracking, deepen and on return and change layer.
In addition, it is generally the case that carbonate reservoir is required for being acidified or acidfracturing treatment can be only achieved and be produced in increasing the storage
Purpose.For reservoir well section length, the carbonate rock open hole well that layer position is more, permeability contrast is big, it is necessary to carry out separate zone stimulation,
The potential of its interlayer reserves can maximally be developed.But current open hole packer technology, it is also immature, especially for deep-well and ultra-deep
Well, after completing transformation operation, open hole packer is difficult to take out in Open-Hole Section, causes the inconvenience of oil recovery and later stage operation, because
This transformation for deep-well, ultradeep well carbonate rock hydrocarbon reservoir reservoir can only often select generally to transform, and can so make permeability
Big layer position is fully transformed, and the small layer position of permeability can not effectively be transformed, so as to be further exacerbated by layer interdigit
The difference of permeability.
The content of the invention
Have in view of that, the present invention provides one kind and sand washing can be avoided while cave-in is prevented, is dragged for two caused by sand
The secondary accident to collapse and cause bit freezing, and carbonate rock hydrocarbon reservoir open hole completion tubing string and the later stage of pump overhaul period can be extended
Processing method, to solve problems of the prior art.
According to the first aspect of the invention, there is provided a kind of carbonate rock hydrocarbon reservoir open hole completion tubing string, including along axis
To sequentially connected packer, safety joint, screen casing and blind plugging,
The blind plugging is in the bottom of the tubing string, and for carrying out closure sand control to the screen casing, the screen casing is used to stablize
The borehole wall and sand control, when the safety joint is used for the post processing of the tubing string, plays the screen casing of giving up and connect what is formed with blind plugging
Integrally-built effect.
Preferably, the packer for can give up can desealed packer, which is in the top of tubing string.
Preferably, ball sealer is further included, the ball sealer is used to put into the tubing string and is completed after suppressing to the envelope
Every setting for device.
Preferably, after the ball sealer puts into the tubing string and is suppressed into tubing string, the packer setting in casing,
For hanging completion tubular column and being sealed with set annular space.
Preferably, shear pin in the safety joint, for recover the oil later stage operation when, complete to the screen casing and blind plugging
Integrally-built the giving up of connection formation.
Preferably, the blind plugging and screen casing are made by easily boring mill material respectively.
Preferably, after the tubing string G.I.H, the screen casing covers whole Open-Hole Section, and packer is in the casing of oil well
It is interior.
According to the second aspect of the invention, there is provided a kind of post-processing side of carbonate rock hydrocarbon reservoir open hole completion tubing string
Method, it is characterised in that including：
Tripping in is used for the recycling instrument for recycling packer, carries removing seal for packer and above；
The pin that safety joint is connected with screen casing is cut；
The packer is taken out out of well, the screen casing and blind plugging connect the overall structure indwelling to be formed in well.
Preferably, which further includes：
By indwelling in the screen casing in well connected with blind plugging the overall structure tripping in drill bit to be formed carry out bore milling it is broken.
The carbonate rock hydrocarbon reservoir open hole completion tubing string that the invention provides, has the advantages that：
1st, with the carbonate rock hydrocarbon reservoir open hole completion tubing string, effective underground sand-prevention can be carried out, avoid sand grains with
Crude oil causes holddown, stifled pump problem into oil well pump, extends pump detection period, has saved operating expenses；
2nd, the carbonate rock hydrocarbon reservoir open hole completion tubing string tripping in Open-Hole Section can effectively support the reservoir borehole wall, avoid because
Reservoir cave-in and bury payzone, cause the oil well underproduction stop production the problem of；It also avoid sand washing at the same time, drag for two caused by sand
The accident of the secondary bit freezing that collapses, causes；
3rd, the blind plugging in the embodiment is connected to the tubing string columnar part formed on screen casing, by easy brill mill material manufacture
Into during, later stage operation, brill can be very easy to and ground off.So as to avoid since steel tubing string is not easy brill mill and brings process cycle
Long, the problem of processing cost is big；
4th, the completion tubular column, can be used as transformation and flow string, due to the throttling action of screen slot, it is achieved thereby that reservoir
The uniform purpose transformed and uniformly produced.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all of the figs, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 shows the structure diagram of carbonate rock hydrocarbon reservoir open hole completion tubing string according to embodiments of the present invention.
What Fig. 2 showed carbonate rock hydrocarbon reservoir open hole completion tubing string according to embodiments of the present invention enters well schematic diagram.
What Fig. 3 showed carbonate rock hydrocarbon reservoir open hole completion tubing string according to embodiments of the present invention sets schematic diagram.
Fig. 4 shows the production status signal of carbonate rock hydrocarbon reservoir open hole completion tubing string according to embodiments of the present invention
Figure.
Fig. 5 shows showing for the acidifying transformation of carbonate rock hydrocarbon reservoir open hole completion tubing string according to embodiments of the present invention
It is intended to.
Fig. 6 shows that carbonate rock hydrocarbon reservoir open hole completion tubing string according to embodiments of the present invention need to bore mill operation and stay well
When schematic diagram.
In figure：Carbonate rock hydrocarbon reservoir open hole completion tubing string 100, packer 11, safety joint 12, screen casing 13, blind plugging
14th, casing 2, Open-Hole Section 3, feeding tubing string 5, acidifying tubing string 6.
Embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with attached drawing.Following embodiments are only used for
Clearly illustrate technical scheme, therefore be only used as example, and the protection model of the present invention cannot be limited with this
Enclose.
As shown in Figures 1 to 6, the present invention provides a kind of carbonate rock hydrocarbon reservoir open hole completion tubing string 100, it includes edge
Axial sequentially connected packer 11, safety joint 12, screen casing 13 and blind plugging 14.The blind plugging 14 is in the bottom of the tubing string
Portion, for carrying out closure sand control to the screen casing 13, the screen casing 13 is used for stabilizing borehole and sand control, and the safety joint 12 is used
When the post processing of the tubing string, play the role of giving up the screen casing 13 and the connection of blind plugging 14 formed it is integrally-built.
The packer 11 can desealed packer 11 for that can give up.The completion tubular column vertically in tripping in oil/gas well, can enter
After well, which is in the top of tubing string, and blind plugging 14 is in the bottom of the completion tubular column.
The carbonate rock hydrocarbon reservoir open hole completion tubing string 100 further includes ball sealer (not shown), and the ball sealer is used
In put into the tubing string in and after suppressing complete setting to the packer 11.The ball sealer puts into the tubing string and to pipe
After being suppressed in column, the packer 11 is set in casing 2, for hanging completion tubular column and being sealed with set annular space.
Further, shear pin (not shown) in the safety joint 12, for recover the oil later stage operation when, complete pair
The screen casing 13 and integrally-built the giving up of the connection formation of blind plugging 14.
Screen casing 13 is the columnar part of the completion tubular column, is cutting seam sieve tube 13 in the embodiment, for the whole bore hole of tripping in
Well section.Cut the screen slot of 0.2-0.4mm width on the screen casing 13, the width of screen slot elects 0.3mm as in the embodiment.Oil gas is from sieve
Seam enters tubing string, and the sand grains more than 0.3mm is blocked in outside screen casing 13, plays the role of sand control.With the growth of time, gear
Cumulative in the sand grains of o exterior, these sand grains form sand bridge, can stop that the sand grains of smaller enters the completion tubular column, from
And play the role of with sand sand block.The screen casing 13 plays the support borehole wall, prevents cave-in from burying production in Open-Hole Section 3 at the same time
The effect of layer.
For the completion tubular column in acidizing treatment, the screen slot on screen casing 13 plays the role of throttling.When acid solution is by permeating
The larger layer position of rate, due to the throttling action of corresponding screen slot, acid solution inlet can be effectively controlled, and such reservoir reconstruction is just
It is relatively uniform；The completion tubular column when recovering the oil, the screen slot on screen casing 13 equally plays throttling action.The larger layer of yield
Position, due to the throttling action of corresponding screen slot, crude oil admission velocity can be effectively controlled, so as to avoid due to reservoir part
Fluid velocity is excessive and causes a series of problems, such as shaking out.
The blind plugging 14 and screen casing 13 are made by easily boring mill material respectively, and brill milling is broken after being easy to tripping in drilling machine.
It is situated between in detail with reference to uses of the Fig. 2 to Fig. 6 to the carbonate rock hydrocarbon reservoir open hole completion tubing string 100
Continue.
As shown in Fig. 2, when carrying out into well construction, packer 11, safety joint 12, screen casing 13 and blind plugging 14 are connected first
Connect, so that completes tubing string assembles work.Then, will be fed into tubing string 5 to be connected on packer 11, with feeding tubing string 5
The tubing string assembled is caused into blind plugging 14 towards slow G.I.H, completes the lower well operations of the tubing string.When completing into well operations,
Ensure that screen casing 13 covers whole Open-Hole Section 3, packer 11 is in casing 2, so as to complete the tripping in construction of completion tubular column.
As shown in figure 3, carry out setting operation of giving up in the step.First to being sent into pitching in tubing string 5 and suppressing, envelope is completed
Set every device 11.
As shown in figure 4, suppressed to annular space, on submit into tubing string 5 and dextrorotation, or complete recyclable packing using other modes
Device 11 is given up.Rise to be sent into tubing string 5, completion tubular column, which is stayed, to be placed in well.The tubing string played from oil recovery process sand control and
The effect of anti-cave-in.
As shown in figure 5, when needing to carry out oil/gas well acidifying transformation, acidifying tubing string 6 is inserted into packer 11, with its shape
Into interior sealing, implement the well stimulations such as Large Scale Acidizing operation.If flow production, flow string is used as using acidifying tubing string 6,
Carry out blowing production；When needing machine to adopt, acidifying tubing string 6 is taken out, tripping in oil well pump or electric pump carry out machine and adopt.
As shown in fig. 6, when oil gas well mining is after a certain period of time if necessary to intensification, sidetracking when underground work, can be to carbon
Hydrochlorate oil gas pool open hole completion tubing string 100 is post-processed with the following method：
Tripping in is used for the recycling instrument for recycling packer 11, and packer 11 is unsealed and is above carried；By safety joint 12 and sieve
The pin that pipe 13 connects is cut；The packer 11 is taken out out of well, the screen casing 13 and blind plugging 14 connect the whole of formation
Body structure indwelling is in well.
Specifically, tripping in packer 11 recycles instrument, can deblocking packer 11 unsealed, and above carry recycling tool pipe
Column, the pin of the safety joint 12 of recyclable 11 lower part of packer are cut, by recyclable packer 11 and safety joint 12 from
Taken out in well, screen casing 13 is connected the overall structure indwelling formed with blind plugging 14 in well.Since screen casing 13 and blind plugging 14 are easy
Mill material is bored, crusher drill is bored in tripping in, easily can bore screen casing 13 and blind plugging 14 and grind off, so as to not influence the well in later stage
Lower operation.
Carbonate rock hydrocarbon reservoir open hole completion tubing string 100 in the embodiment when in use, first by involved by the present invention
And completion tubular column tripping in design position, pitching sets recyclable packer 11, given up out and be sent into tubing string 5, will be acidified tubing string 6
Return the recyclable packer 11 of insertion and carry out acidifying transformation, carry out blowing production with acidifying tubing string 6 or take out acidifying tubing string 6 to carry out machine
Production is adopted, it is necessary to during post-processing, tripping in packer 11 recycles instrument and unseals recyclable packer 11, and upper lifting pipe post, cuts peace
The pin of full connector 12, takes out recyclable packer 11 and safety joint 12, and tripping in bores mill tubing string and bores mill screen casing 13 and blind plugging 14,
Then later stage job execution can smoothly be implemented.
Carbonate rock hydrocarbon reservoir open hole completion tubing string 100 in the embodiment, has the advantages that：
1st, with the carbonate rock hydrocarbon reservoir open hole completion tubing string 100, effective underground sand-prevention can be carried out, avoids sand grains
Holddown, stifled pump problem are caused into oil well pump with crude oil, pump detection period is extended, has saved operating expenses；
2nd, the 100 tripping in Open-Hole Section 3 of carbonate rock hydrocarbon reservoir open hole completion tubing string can effectively support the reservoir borehole wall, keep away
The problem of exempting to bury payzone because of reservoir cave-in, causing the oil well underproduction to stop production；Sand washing is also avoid, sand is dragged for and causes at the same time
The secondary accident for collapsing, causing bit freezing；
3rd, the blind plugging 14 in the embodiment is connected to the tubing string columnar part formed on screen casing, and material manufacture is ground by easy bore
Form, during later stage operation, brill can be very easy to and ground off.So as to avoid since steel tubing string is not easy brill mill and brings processing week
The problem of phase is long, processing cost is big；
4th, the completion tubular column, can be used as transformation and flow string, due to the throttling action of screen slot, it is achieved thereby that reservoir
The uniform purpose transformed and uniformly produced.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In this application, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme, it should all cover among the claim of the present invention and the scope of specification.Especially, as long as there is no knot
Structure conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The present invention does not limit to
In specific embodiment disclosed herein, but all technical solutions including falling within the scope of the appended claims.
Claims (9)
1. a kind of carbonate rock hydrocarbon reservoir open hole completion tubing string, it is characterised in that including axially sequentially connected packing
Device, safety joint, screen casing and blind plugging,
The blind plugging is in the bottom of the tubing string, and for carrying out closure sand control to the screen casing, the screen casing is used for stabilizing borehole
And sand control, when the safety joint is used for the post processing of the completion tubular column, plays the screen casing of giving up and connect what is formed with blind plugging
Integrally-built effect.
2. carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 1, it is characterised in that the packer is
Can give up can desealed packer, which is in the top of tubing string.
3. carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 2, it is characterised in that further include sealing
Ball, the ball sealer are used to put into the tubing string and complete to set the packer after suppressing.
4. carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 3, it is characterised in that the ball sealer is thrown
After entering in the tubing string and being suppressed into tubing string, the packer setting is in casing, for hanging completion tubular column and being sealed with
Cover annular space.
5. carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 1, it is characterised in that the safety joint
Upper shear pin, for recover the oil later stage operation when, complete to connect the screen casing with blind plugging to be formed integrally-built and give up.
6. carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 1, it is characterised in that the blind plugging and sieve
Pipe is made by easily boring mill material respectively.
7. carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 1, it is characterised in that the tubing string lower going-into-well
After interior, the screen casing covers whole Open-Hole Section, and packer is in the casing of oil well.
A kind of 8. post-processing side according to claim 1-7 any one of them carbonate rock hydrocarbon reservoir open hole completion tubing strings
Method, it is characterised in that including：
Tripping in is used for the recycling instrument for recycling packer, carries removing seal for packer and above；
The pin that safety joint is connected with screen casing is cut；
The packer is taken out out of well, the screen casing and blind plugging connect the overall structure indwelling to be formed in well.
9. the post-processing method of carbonate rock hydrocarbon reservoir open hole completion tubing string according to claim 8, its feature exist
In further including：
By indwelling in the screen casing in well connected with blind plugging the overall structure tripping in drill bit to be formed carry out bore milling it is broken.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213287.6A CN107939358A (en) | 2017-11-28 | 2017-11-28 | Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213287.6A CN107939358A (en) | 2017-11-28 | 2017-11-28 | Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939358A true CN107939358A (en) | 2018-04-20 |
Family
ID=61950187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711213287.6A Pending CN107939358A (en) | 2017-11-28 | 2017-11-28 | Carbonate rock hydrocarbon reservoir open hole completion tubing string and post-processing method |
Country Status (1)
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| CN109854213A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | Set damage repairs the sand control pipe of well |
| CN110513072A (en) * | 2019-10-20 | 2019-11-29 | 达坦能源科技（上海）有限公司 | A kind of ultradeep well open hole packer |
| CN110821449A (en) * | 2019-11-28 | 2020-02-21 | 新疆恒智伟业石油工程技术开发有限公司 | A kind of carbonate oil well screen completion pipe string and method for unblocking |
| CN110984924A (en) * | 2019-12-20 | 2020-04-10 | 新疆恒智伟业石油工程技术开发有限公司 | Easy-drilling-and-grinding open hole well completion pipe string construction method |
| CN111042767A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Horizontal well segmented acidizing, filling and sand prevention integrated pipe column and method |
| CN112112608A (en) * | 2019-06-21 | 2020-12-22 | 中国石油天然气股份有限公司 | Comprehensive treatment method for collapse well of carbonate reservoir |
| CN113756778A (en) * | 2020-06-03 | 2021-12-07 | 中国石油化工股份有限公司 | Composite completion string and method of use |
| CN113914814A (en) * | 2020-07-09 | 2022-01-11 | 中国石油化工股份有限公司 | Anti-collapse sand consolidation drilling and grinding treatment method for ultra-deep open hole well |
| CN115110922A (en) * | 2021-03-22 | 2022-09-27 | 中国石油化工股份有限公司 | Compound sand control pipe for natural gas hydrate exploitation well completion |
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| CN112112608A (en) * | 2019-06-21 | 2020-12-22 | 中国石油天然气股份有限公司 | Comprehensive treatment method for collapse well of carbonate reservoir |
| CN110513072A (en) * | 2019-10-20 | 2019-11-29 | 达坦能源科技（上海）有限公司 | A kind of ultradeep well open hole packer |
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| CN113756778A (en) * | 2020-06-03 | 2021-12-07 | 中国石油化工股份有限公司 | Composite completion string and method of use |
| CN113756778B (en) * | 2020-06-03 | 2023-09-26 | 中国石油化工股份有限公司 | Composite completion string and how to use it |
| CN113914814A (en) * | 2020-07-09 | 2022-01-11 | 中国石油化工股份有限公司 | Anti-collapse sand consolidation drilling and grinding treatment method for ultra-deep open hole well |
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