CN207004504U - A kind of flooding pattern arrangement of rhombus trap - Google Patents
A kind of flooding pattern arrangement of rhombus trap Download PDFInfo
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- CN207004504U CN207004504U CN201720663793.4U CN201720663793U CN207004504U CN 207004504 U CN207004504 U CN 207004504U CN 201720663793 U CN201720663793 U CN 201720663793U CN 207004504 U CN207004504 U CN 207004504U
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Abstract
The utility model discloses a kind of arrangement of the flooding pattern of rhombus trap, including water injection well, producing well, it is characterized in that, the water injection well is arranged at each summit, each side midpoint and symmetrical centre of rhombus, and the producing well is arranged on the line of symmetrical centre and each summit, symmetrical centre and the line at each side midpoint.The purpose of this utility model is the flooding pattern arrangement for providing a kind of rhombus trap, to solve the problems, such as that the arrangement of the flooding pattern of the rhombus trap for long and narrow in the prior art easily causes production efficiency low, the purpose for improving rhombus trap recovery ratio, reducing Produced Liquid moisture content is realized.
Description
Technical field
It the utility model is related to oil gas field well pattern field, and in particular to a kind of flooding pattern arrangement of rhombus trap.
Background technology
Well pattern refers in petroleum-gas fiedl development process, oil, gas, the distribution mode of water injection well, is in Reservoir Development scheme
Important step, it is related to oil field development efficiency, ultimate recovery and oil field development economic benefit.In the prior art, it is right
All it is the individual well control first according to the total oil in place of oil reservoir, divided by acquired by conventional well testing in the arrangement mode of oil reservoir well pattern
Reserves processed, required producing well number is obtained, then on this basis, the corresponding row's water injection well of row's producing well, adopted so as to design note
The equally distributed latticed well pattern arrangement of well.This arrangement mode is for structure more rule, the particularly side of being similar to
There is preferable recovery ratio for the circular oil reservoir of shape.But for the rhombus trap of irregular long and narrow, due to it
The special shape of trap structure, arranged using traditional grid type well pattern, easily cause recovery ratio is low, oil well water breakthrough quickly,
The problem of oilfield exploitation mid-term stage cannot continue water filling water drive is even resulted in, has a strong impact on production efficiency.
Utility model content
The purpose of this utility model is the flooding pattern arrangement for providing a kind of rhombus trap, right in the prior art to solve
Arranged easy the problem of causing production efficiency low in the flooding pattern of the rhombus trap of long and narrow, realize that improving rhombus trap adopts
Yield, the purpose for reducing Produced Liquid moisture content.
The utility model is achieved through the following technical solutions：
A kind of flooding pattern arrangement of rhombus trap, including water injection well, producing well, it is characterised in that the water injection well is set
Put at each summit of rhombus, each side midpoint and symmetrical centre, the producing well is arranged on the company of symmetrical centre and each summit
On line, symmetrical centre and the line at each side midpoint.
Flooding pattern arrangement for the rhombus trap for long and narrow in the prior art easily causes production efficiency low
The problem of, the utility model proposes a kind of arrangement of the flooding pattern of rhombus trap, in each summit of rhombus trap, each side
Water injection well is respectively provided with point and symmetrical centre, wherein it is known that symmetric figure, its two cornerwise friendships centered on rhombus
Point is symmetrical midpoint.Wherein each apex sets water injection well to be used to carry out the displacement of reservoir oil to trap inside, and summit is the turnover of trap
Point, therefore set water injection well to ensure the oil gas in trap being driven to center here；Each side midpoint sets water injection well, increases
The iris action at strong trap edge, avoid oil gas from outwards being dissipated from edge and overflow, while also driven from edge by oil gas to center
Catch up with；Symmetrical centre sets water injection well so that one can be provided in the middle part of trap excessive driving force is dissipated to surrounding, so as to which oil gas be driven
Move to each producing well being distributed in inside trap.Producing well be arranged on the line of symmetrical centre and each summit, symmetrical centre with
On the line at each side midpoint.Be producing well point centered on symmetrical centre, outwards carry out divergent shape distribution, diverging direction along
Symmetrical centre and line, symmetrical centre and the line at each side midpoint on each summit are carried out, altogether eight diverging directions, at this eight
It is arranged along a straight line producing well according to length of the scene per segment distance on direction.Such a arrangement causes rhombic inner relatively narrower
Area, producing well quantity are few；It is more compared with spacious area, producing well quantity, therefore enable to individual well to obtain bigger effective control
Area processed, solving traditional grid type well pattern arrangement mode causes in rhombus trap single well controlled reserves some very some is very greatly
The problem of small, so as to largely improve the overall recovery ratio of rhombus trap.Meanwhile the arrangement in the utility model
Water injection well, remaining water injection well is set to be entirely located in marginal position, therefore can solve the problem that existing only at trap internal symmetry center
Narrow rhombus trap recovery process in moisture content the problem of being higher than convention square or circular oil reservoir, when delaying oil well water breakthrough
Between, reduce moisture content.
Further, some auxiliary water injection wells are additionally provided between each summit of rhombus and each side midpoint.For more thorough
The closure trap edge at bottom, is avoided outside oil gas dissipate trap, while provides the driving of more strength, further improves trap
The recovery ratio of interior producer.
Preferably, the producing well on the line on the symmetrical centre of rhombus and each summit be straight well, the symmetrical centre of rhombus and
Producing well on the line at each side midpoint is extended reach well or horizontal well.Pass through the symmetrical centre that rhombus is set and each side midpoint
Producing well on line is extended reach well or horizontal well, the characteristics of using extended reach well or the high control of horizontal well, high yield, is improved
Single well controlled reserves, so as to improve oil field entirety recovery ratio.Meanwhile set in the symmetrical centre of rhombus and the line on each summit
Producing well is straight well, the problem of avoiding all causing holistic cost too high using extended reach well or horizontal well inside oil reservoir.Using
Straight well sets producing well with the mode that extended reach well or horizontal well are arranged alternately, additionally it is possible to ensures that oil reservoir has three-dimensional flowing shape
State, avoid interflow that oil-gas formation is simple and cause to harvest the problem of layer position is very few.
Preferably, the 1/2 of water injection rate≤water injection well of water injection well is aided in.The major function of auxiliary water injection well is barrier oil
Gas dissipates from trap edge and overflow, therefore sets its water injection rate smaller compared to conventional waterflooding well, avoids excessive to the injection of trap inside
Moisture causes moisture content to shift to an earlier date improper rising.
Further, the symmetrical centre of rhombus on the line of each auxiliary water injection well with being also reserved with adjustment well well location.Oil gas
After the field input exploitation several years, to improve reserves exploitation degree, improve recovery ratio and be referred to as to adjust, it is necessary to encrypt the well being drilled with
Well.Traditional adjustment well well location be all after mining the phase directly encrypt, do not reserved, easily cause anti-collision wind under late well
The problems such as danger is big, well location inconvenience is arranged, site operation is difficult to meet, therefore the utility model also advance reservation adjustment Jing Jing
Position, to solve the above problems.Adjustment well well location is reserved in symmetrical centre with the line of each auxiliary water injection well, not having on the line
Other well locations are set, can be that later stage either waterflooding adjustment well or modification scenario well all provide enough drilling spaces,
Underground there will not be anti-collision risk, largely solve the problems, such as that the exploitation of oil field later stage is difficult.
Preferably, the projection of the line between the well head of the extended reach well or horizontal well, shaft bottom in the horizontal plane, vertically
Line between the symmetrical centre of rhombus and each side midpoint.To improve the Area of a well of extended reach well or horizontal well, make
The azimuth for obtaining extended reach well or horizontal well is in further divergent shape inside trap, so as to improve recovery ratio.
The utility model compared with prior art, has the following advantages and advantages：
1st, the flooding pattern arrangement of a kind of rhombus trap of the utility model, sets water injection well to ensure trap in symmetrical centre
Interior oil gas is driven to center；Each side midpoint sets water injection well, the iris action at enhancing trap edge, avoids oil gas from side
Edge outwards dissipates and overflow, while is also driven from edge by oil gas to center；Symmetrical centre sets water injection well so that in the middle part of trap
One can be provided excessive driving force is dissipated to surrounding, so as to by oil gas driving to each producing well being distributed in inside trap.
2nd, the flooding pattern arrangement of a kind of rhombus trap of the utility model, producing well point centered on symmetrical centre, outwards
Divergent shape distribution is carried out, diverging direction is entered along symmetrical centre and line, symmetrical centre and the line at each side midpoint on each summit
OK, altogether eight diverging direction.So that the area of rhombic inner relatively narrower, producing well quantity are few；More spacious area, producing well
Quantity is more, therefore enables to individual well to obtain bigger effective control area, solves traditional grid type well pattern arrangement mode
The problem of causing the very little that there is greatly very much single well controlled reserves some in rhombus trap, so as to largely improve rhombus trap
Overall recovery ratio.
3rd, the flooding pattern arrangement of a kind of rhombus trap of the utility model, can solve the problem that existing narrow rhombus trap is opened
Moisture content is higher than the problem of convention square or circular oil reservoir during adopting, and delays the oil well water breakthrough time, reduces moisture content.
4th, a kind of rhombus trap of the utility model flooding pattern arrangement, adjustment well well location be reserved in symmetrical centre with it is each auxiliary
Help on the line of water injection well, can be that later stage either waterflooding adjustment well or modification scenario well all provide enough drillings empty
Between, underground there will not be anti-collision risk, largely solve the problems, such as that the exploitation of oil field later stage is difficult.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is the structural representation of the utility model specific embodiment.
Mark and corresponding parts title in accompanying drawing：
1- water injection wells, 2- producing wells, 3- auxiliary water injection wells, 4- adjustment well well locations.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1：
A kind of flooding pattern arrangement of rhombus trap as shown in Figure 1, triangle shown in figure represents producing well 2, square
Representative adjustment well well location 4, larger circle represent water injection well 1, and less circular represent aids in water injection well 3, and dotted line is for ease of sight
The boost line examined, peripheral rhombus represent a long and narrow rhombus trap.Including water injection well 1, producing well 2, the water injection well 1 is set
At each summit of rhombus, each side midpoint and symmetrical centre, the producing well 2 is arranged on the company of symmetrical centre and each summit
On line, symmetrical centre and the line at each side midpoint.Some auxiliary water fillings are additionally provided between each summit of rhombus and each side midpoint
Well 3.The symmetrical centre of rhombus is straight well, the symmetrical centre of rhombus and the company at each side midpoint with the producing well on the line on each summit
Producing well on line is extended reach well or horizontal well.Aid in the 1/2 of water injection rate≤water injection well of water injection well.The symmetrical centre of rhombus
With being also reserved with adjustment well well location 4 on the line of each auxiliary water injection well.Between the well head of the extended reach well or horizontal well, shaft bottom
Line projection in the horizontal plane, the line between the symmetrical centre of rhombus and each side midpoint.The utility model exists
Symmetrical centre sets water injection well to ensure the oil gas in trap being driven to center；Each side midpoint sets water injection well, enhancing circle
The iris action at edge is closed, avoids oil gas from outwards being dissipated from edge and overflows, while also driven from edge by oil gas to center；It is right
Claim centrally disposed water injection well so that one can be provided in the middle part of trap excessive driving force is dissipated to surrounding, so that by oil gas driving extremely
It is distributed at each producing well inside trap.Producing well point centered on symmetrical centre, outwards carry out divergent shape distribution, diverging side
Carried out to the line along symmetrical centre and each summit, symmetrical centre and the line at each side midpoint, altogether eight diverging directions.Make
Area, the producing well quantity for obtaining rhombic inner relatively narrower are few；It is more compared with spacious area, producing well quantity, therefore enable to list
Well obtains bigger effective control area, and solving traditional grid type well pattern arrangement mode causes single well-controlled in rhombus trap
The problem of very little that reserves some has greatly very much, so as to largely improve the overall recovery ratio of rhombus trap.To sum up, this reality
The asking higher than convention square or circular oil reservoir of moisture content in existing narrow rhombus trap recovery process is can solve the problem that with new
Topic, delay the oil well water breakthrough time, reduce moisture content.In addition, adjustment well well location is reserved in symmetrical centre and each auxiliary water injection well
Can be that later stage either waterflooding adjustment well or modification scenario well all provide enough drilling spaces, underground on line
Anti-collision risk is not had, largely solves the problems, such as that the exploitation of oil field later stage is difficult.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (4)
1. a kind of flooding pattern arrangement of rhombus trap, including water injection well, producing well, it is characterised in that the water injection well is set
At each summit of rhombus, each side midpoint and symmetrical centre, the producing well is arranged on the company of symmetrical centre and each summit
On line, symmetrical centre and the line at each side midpoint；Some auxiliary water fillings are additionally provided between each summit of rhombus and each side midpoint
Well；The symmetrical centre of rhombus is straight well, the symmetrical centre of rhombus and the company at each side midpoint with the producing well on the line on each summit
Producing well on line is extended reach well or horizontal well.
2. the flooding pattern arrangement of a kind of rhombus trap according to claim 1, it is characterised in that aid in the note of water injection well
The 1/2 of water≤water injection well.
A kind of 3. flooding pattern arrangement of rhombus trap according to claim 1, it is characterised in that the symmetrical centre of rhombus
With being also reserved with adjustment well well location on the line of each auxiliary water injection well.
4. a kind of rhombus trap according to claim 1 flooding pattern arrangement, it is characterised in that the extended reach well or
The projection of line in the horizontal plane between the well head of horizontal well, shaft bottom, perpendicular to rhombus symmetrical centre and each side midpoint it
Between line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663793.4U CN207004504U (en) | 2017-06-08 | 2017-06-08 | A kind of flooding pattern arrangement of rhombus trap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663793.4U CN207004504U (en) | 2017-06-08 | 2017-06-08 | A kind of flooding pattern arrangement of rhombus trap |
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| Publication Number | Publication Date |
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| CN207004504U true CN207004504U (en) | 2018-02-13 |
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| CN201720663793.4U Active CN207004504U (en) | 2017-06-08 | 2017-06-08 | A kind of flooding pattern arrangement of rhombus trap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821453A (en) * | 2019-11-07 | 2020-02-21 | 成都北方石油勘探开发技术有限公司 | Gas injection oil reservoir development scheme design method based on three-dimensional geological numerical model |
-
2017
- 2017-06-08 CN CN201720663793.4U patent/CN207004504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821453A (en) * | 2019-11-07 | 2020-02-21 | 成都北方石油勘探开发技术有限公司 | Gas injection oil reservoir development scheme design method based on three-dimensional geological numerical model |
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