CN208473830U - Combine well pattern structure - Google Patents
Combine well pattern structure Download PDFInfo
- Publication number
- CN208473830U CN208473830U CN201820800219.3U CN201820800219U CN208473830U CN 208473830 U CN208473830 U CN 208473830U CN 201820800219 U CN201820800219 U CN 201820800219U CN 208473830 U CN208473830 U CN 208473830U
- Authority
- CN
- China
- Prior art keywords
- well
- horizontal
- oil reservoir
- strata
- pattern structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Edible Oils And Fats (AREA)
Abstract
The utility model discloses a kind of combination well pattern structures, the combination well pattern structure is arranged in the upper series of strata oil reservoir with the first permeability and the lower series of strata oil reservoir with the second permeability, first permeability is greater than second permeability, the combination well pattern structure includes: first level well, the second horizontal well and third horizontal well, wherein, second horizontal well is water injection well, between the first level well and third horizontal well, the first level well and third horizontal well are producing well for it；The straight well section of the horizontal well is fed through the upper series of strata oil reservoir, and for developing the upper series of strata oil reservoir, the horizontal segment of the horizontal well is located in lower series of strata oil reservoir, for developing the lower series of strata oil reservoir.Combination well pattern structure provided by the utility model can develop two sets of series of strata, simultaneously to reduce development cost.
Description
Technical field
The utility model relates to petroleum exploration and development technical field, in particular to a kind of combination well pattern structure.
Background technique
Thin oil is 21 century important petroleum resources, thin oil mining method mainly include natural energy drive, water drive, gas drive,
Chemical flooding, microorganism drive etc..But which kind of development scheme no matter is used, rational well pattern research therein occupies considerablely
Position.The selection deployment of well pattern largely determines production scale and economic benefit of oil gas field etc., especially for low
Grade oil reservoir, well pattern problem are particularly important.
Currently, the live form of producing pattern mainly have linear type well pattern, five-spot pattern, inverted five spot well pattern, seven spot pattern,
Anti- seven spot pattern, nine-spot pattern, inverted nine-spot pattern etc..
For the block of upper and lower two sets of straticulate explorations, especially upper series of strata are common stratified deposit, and lower series of strata are thick-layer
To special thick-layer law quality reservoirs, the physical property conditions such as hole is seeped are poor, it is also contemplated that implementing the measures such as pressure break.Although conventional well pattern shape
Formula can be able to satisfy the demand of exploitation oil reservoir, but two jacket layer pasterns affix one's name to two sets of well patterns, higher cost.Therefore, how using a set of
Well pattern develops two sets of series of strata simultaneously, to reduce development cost as oil field actual production urgent problem.
Utility model content
The purpose of the utility model is to provide a kind of combination well pattern structures, can overcome the deficiencies of existing technologies, Neng Gouli
Two sets of series of strata are developed simultaneously with a set of combination well pattern, reduce development cost, which is especially suitable for upper series of strata
Common stratified deposit, lower series of strata are thick-layer to special thick-layer law quality reservoirs.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model:
Upper series of strata oil reservoir and tool with the first permeability is arranged in a kind of combination well pattern structure, the combination well pattern structure
Have in the lower series of strata oil reservoir of the second permeability, first permeability is greater than second permeability, the combination well pattern structure
Include:
First level well, the second horizontal well and third horizontal well, wherein second horizontal well is water injection well, is located at
Between the first level well and third horizontal well, the first level well and third horizontal well are producing well；
The straight well section of the horizontal well is fed through the upper series of strata oil reservoir, for developing the upper series of strata oil reservoir, the water
The horizontal segment of horizontal well is located in lower series of strata oil reservoir, for developing the lower series of strata oil reservoir.
In one preferred embodiment, the first level well and third horizontal well are equal with second horizontal well
Row.
In one preferred embodiment, the straight well section of the first level well, the second horizontal well and third horizontal well
The line of projection in the plane forms isosceles triangle.
In one preferred embodiment, the straight well section of the first level well and third horizontal well is to second water
The distance of the straight well section of horizontal well is 325 meters.
In one preferred embodiment, the length of the first level well and third horizontal well horizontal segment is 500 meters.
In one preferred embodiment, the well spacing of the first level well and third horizontal well is 460 meters.
In one preferred embodiment, the water injection well is to the distance at the oil reservoir bottom of the lower series of strata oil reservoir at 1 meter
To between 2 meters.
In one preferred embodiment, the producing well to the horizontal well vertical distance 5 meters to 15 meters it
Between.
In one preferred embodiment, it is to penetrate entirely that the water injection well, which is located at the well section in the upper series of strata reservoir oil layer,
Hole section.
In one preferred embodiment, the thickness of the lower series of strata reservoir oil layer is greater than 10 meters.
The characteristics of the utility model and advantage are: a kind of combination well pattern structure are provided in the application embodiment, for tool
There is the oil reservoir of different permeabilities, dexterously develop two oil reservoirs up and down simultaneously using Horizontal Well web frame, wherein utilizes horizontal
The straight well section of well realizes the exploitation of upper series of strata oil reservoir, and the exploitation of lower series of strata oil reservoir is realized using the horizontal segment of horizontal well, is overcome
A set of well pattern develops the technical problem of two sets of series of strata, reduces the problem of bringing increased costs because well net deployment is increased, from
And realize economic producing oil reservoir, recovery percent of reserves is improved, economic benefit is increased.
Referring to following description and accompanying drawings, specific implementations of the present application are disclosed in detail, specify the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, presently filed embodiment includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
Fig. 1 be in the application embodiment it is a kind of combination well pattern structure in horizontal well path in-plane on position overlook
Figure；
Fig. 2 is that a kind of profile direction combined in well pattern structure perpendicular to horizontal well path is upper in the application embodiment
Set side view.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, elaborate to the technical solution of the utility model, it should be understood that
These embodiments are merely to illustrate the utility model rather than limitation the scope of the utility model, practical new having read this
After type, those skilled in the art each fall within the application appended claims to the modification of the various equivalent forms of the utility model
In limited range.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "upper",
"lower", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
The utility model provides a kind of combination well pattern structure, can overcome the deficiencies of existing technologies, and can utilize a set of group
It closes well pattern and develops two sets of series of strata simultaneously, reduce development cost, which is common layer especially suitable for upper series of strata
Shape oil reservoir, lower series of strata are thick-layer to special thick-layer law quality reservoirs.
Fig. 1 to Fig. 2 is please referred to, a kind of combination well pattern structure provided in the application embodiment, the combination well
Web frame is arranged in the upper series of strata oil reservoir U with the first permeability and the lower series of strata oil reservoir D with the second permeability, and described
One permeability is greater than second permeability.
The combination well pattern structure may include: first level well, the second horizontal well and third horizontal well, wherein described
Second horizontal well is water injection well I, between the first level well and third horizontal well, the first level well and third
Horizontal well is producing well, respectively the first producing well P1 and the second producing well P2；The straight well section of the horizontal well is fed through described
Upper series of strata oil reservoir U, for developing the upper series of strata oil reservoir U, the horizontal segment of the horizontal well is located in lower series of strata oil reservoir D, is used for
Develop the lower series of strata oil reservoir D.
In the present embodiment, the combination well well pattern structure is mainly used for two oil that exploitation has different permeabilities
Hiding.Wherein, the upper series of strata oil reservoir U can be common stratified deposit, and the lower series of strata oil reservoir D can be thick-layer to special thick-layer
Law quality reservoirs.
For the relatively upper series of strata oil reservoir U of lower series of strata oil reservoir D, permeability is low, and development difficulty is big, in order to reach ideal exploitation
Effect, the horizontal segment which can use horizontal well in combination well pattern structure is developed, correspondingly, upper series of strata
The straight well section that oil reservoir U can use horizontal well in combination well pattern structure is developed.
Combination well pattern structure provided herein dexterously utilizes horizontal well for the oil reservoir with different permeabilities
Well pattern structure develops two oil reservoirs up and down simultaneously, wherein the exploitation of upper series of strata oil reservoir U, benefit are realized using the straight well section of horizontal well
The exploitation that lower series of strata oil reservoir D is realized with the horizontal segment of horizontal well, overcomes the technical problem that a set of well pattern develops two sets of series of strata, subtracts
Lack the problem of bringing increased costs because well net deployment is increased, to realize economic producing oil reservoir, improves extraction journey
Degree increases economic benefit.
In general, the thickness of the upper series of strata oil reservoir U is less than the thickness of the lower series of strata oil reservoir D.The warp exploited from oil reservoir
Ji property angle considers that the thickness of lower series of strata oil reservoir D is generally greater than the thickness of series of strata oil reservoir U.If the thickness of lower series of strata oil reservoir D
Too small, the economy of exploitation can reduce.Specifically, the thickness of the lower series of strata oil reservoir D oil reservoir is greater than 10 meters.
Specifically, the lower series of strata oil reservoir D also can may include the oil of multiple superposed only comprising a whole oil reservoir
Layer.When the lower series of strata oil reservoir D only includes an oil reservoir, the thickness of the oil reservoir is greater than 10 meters.In addition, working as the lower series of strata oil reservoir
When D includes multiple oil reservoirs, at least partly it is overlapped in the longitudinal direction between two neighboring oil reservoir and superposition thickness is larger.The lower series of strata oil
The superposition thickness of hiding D is generally higher than 10 meters.That is, lower series of strata oil reservoir D can be superimposed thickness for core intersection or oil reservoir
Law quality reservoirs greater than 10 meters individually develop above-mentioned oil reservoir, and development cost is larger, and development effectiveness is general.In the application
By the thick-layer LOW PERMEABILITY RESERVOIR combination and exploitation of above-mentioned oil reservoir and lower part, can cost-effectively be developed.
Specifically, the combination well pattern structure may include: first level well, the second horizontal well and third horizontal well,
In, second horizontal well is water injection well I, between the first level well and third horizontal well, the first level
Well and third horizontal well are respectively the first producing well P1, the second producing well P2.
For upper series of strata, developed using the straight well section of horizontal well.The first level well and third horizontal well and described the
Two horizontal wells are parallel.
The line of the projection of the straight well section of the first level well, the second horizontal well and third horizontal well in the plane forms
Isosceles triangle.The distance of straight well section of the straight well section of the first level well and third horizontal well to second horizontal well is
325 meters, i.e. L3=A1B1=B1C1=325m.For lower series of strata, developed using the horizontal segment of horizontal well.Intermediate 1 mouthful of note
Well I and 2 mouthfuls of two sides producing well (the first producing well P1 and the second producing well P2), should be parallel to each other as far as possible between horizontal well.Water
The horizontal segment length L1=A1A2=B1B2=C1C2=500m of horizontal well, the plane well spacing of horizontal well are L2=230m, two mouthfuls of production water
The well spacing of horizontal well is 2*L2=A1C1=A2C2=460m (such as Fig. 1).
On longitudinal direction, for the upper series of strata oil reservoir U of stratiform, developed in such a way that full oil reservoir well section corresponds to perforation.For low
The lower series of strata oil reservoir D of grade fills the water horizontal well distance in order to enable producing well can effectively employ oil reservoir reserves to greatest extent
Oil reservoir bottom distance h1 should between 1m~2m, production level well P1, P2 away from water filling horizontal well vertical distance h2 5m~15m it
Between, thickness (or superposition thickness) h3 of lower series of strata oil reservoir D is greater than 10m (such as Fig. 2).Net horizontal section passes through pressure using first pressure break
Generation pressure-break is split, hole is linked up, increases reservoir permeability, then exploitation of putting into production.
Fig. 1 to Fig. 2 is please referred to, elaborates the application below with reference to specific attached drawing.I represents the second of water filling
Horizontal well (i.e. water injection well I), P1 represent the first level well (i.e. the first producing well P1) of oil recovery, and P2 represents the third of oil recovery
Horizontal well (i.e. the second producing well P2), A, B, C be horizontal well endpoint, L1 be horizontal well horizontal section length, L2 be water injection well I with
Plane well spacing between producing well, L3 are the plane well spacing of two mouthfuls of water horizontal well straight well sections, h1 be producing well and water injection well I it is vertical away from
From h2 is the vertical distance at water injection well I oil reservoir bottom, the thickness of series of strata oil reservoir D oil reservoir under h3.
Two sets of oil reservoirs are longitudinally developed on certain oil field block, family's platform oil reservoir is shut out as thick-layer to the special low-grade oil of thick-layer shape in lower part
Hiding, oil reservoir superposition thickness are up to 90m, and top Xinglongtai oil reservoir is stratified deposit, and how oil reservoir average thickness 3m solves to use
A set of well pattern develops two sets of different types of oil reservoirs, is vital in actual development.
To realize the purpose for developing two sets of series of strata using a set of well pattern, the utility model proposes a kind of horizontal well combination and exploitations
The technical solution of the well pattern mode of two sets of series of strata is mainly closed comprising 3 mouthfuls of water horizontal well plan positional relationships and profile position
System.
(1) horizontal well plane relative position, well spacing: a well group disposes 3 mouthfuls of water horizontal wells altogether, and I is water injection well I, and P1, P2 are
Producing well.For upper series of strata, developed using the straight well section of horizontal well, the projection of straight well section in the plane forms triangle well
Net, note adopt the distance L3=A1B1=B1C1=325m of horizontal well straight well section；For lower series of strata, using horizontal well development, centre 1
Mouth fills the water horizontal well and 2 mouthfuls of two sides production level well, should be parallel to each other as far as possible between horizontal well, the horizontal segment length L1=of horizontal well
A1A2=B1B2=C1C2=500m, the plane well spacing of horizontal well are L2=230m, and the well spacing of two mouthfuls of production level wells is 2*L2
=A1C1=A2C2=460m (such as Fig. 1).
(2) on longitudinal direction, it is stratified deposit for upper series of strata oil reservoir U, is developed in such a way that full oil reservoir well section corresponds to perforation；
It is law quality reservoirs for lower series of strata oil reservoir D, in order to enable producing well can effectively employ oil reservoir reserves to greatest extent, water filling
Horizontal well should be between 1m~2m apart from oil reservoir bottom distance h1, vertical distance h2 of production level well P1, the P2 away from water filling horizontal well
Between 5m~15m, reservoir thickness (or superposition thickness) h3 is greater than 10m (such as Fig. 2).Net horizontal section is passed through using first pressure break
Pressure break generates pressure-break, links up hole, increases reservoir permeability, then exploitation of putting into production.
A kind of combination well pattern structure is provided in the application embodiment, for the oil reservoir with different permeabilities, dexterously
Develop two oil reservoirs up and down simultaneously using Horizontal Well web frame, wherein realize upper series of strata oil reservoir U using the straight well section of horizontal well
Exploitation, the exploitation of lower series of strata oil reservoir D is realized using the horizontal segment of horizontal well, overcomes the skill that a set of well pattern develops two sets of series of strata
Art problem reduces the problem of bringing increased costs because well net deployment is increased, to realize economic producing oil reservoir, mentions
High recovery percent of reserves increases economic benefit.
Herein cited any digital value all include between lower limit value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity an of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that all possibility for the numerical value enumerated between minimum and peak
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to cover that " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Describing combined term " substantially by ... constitute " should include identified element, ingredient, component or step and reality
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any
Attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiments difference.
The foregoing is merely several embodiments of the utility model, although embodiment disclosed by the utility model is such as
On, but the content is only to facilitate the embodiment for understanding the utility model and using, it is practical new to be not intended to limit this
Type.Any those skilled in the art of the present invention are not departing from spirit and scope disclosed by the utility model
Under the premise of, any modification and variation, but the patent of the utility model can be made in the formal and details of embodiment
Protection scope must be still subject to the scope defined in the appended claims.
Claims (10)
1. a kind of combination well pattern structure, which is characterized in that the upper layer with the first permeability is arranged in the combination well pattern structure
It is that first permeability is greater than second permeability in oil reservoir and lower series of strata oil reservoir with the second permeability, described group
Closing well pattern structure includes:
First level well, the second horizontal well and third horizontal well, wherein second horizontal well is water injection well, is located at described
Between first level well and third horizontal well, the first level well and third horizontal well are producing well；
The straight well section of the horizontal well is fed through the upper series of strata oil reservoir, for developing the upper series of strata oil reservoir, the horizontal well
Horizontal segment be located in lower series of strata oil reservoir, for developing the lower series of strata oil reservoir.
2. combination well pattern structure as described in claim 1, which is characterized in that the first level well and third horizontal well and institute
It is parallel to state the second horizontal well.
3. combination well pattern structure as claimed in claim 2, which is characterized in that the first level well, the second horizontal well and the
The line of the projection of the straight well section of three horizontal wells in the plane forms isosceles triangle.
4. combination well pattern structure as claimed in claim 3, which is characterized in that the first level well and third horizontal well it is straight
Well section to second horizontal well straight well section distance be 325 meters.
5. combination well pattern structure as claimed in claim 3, which is characterized in that the first level well and third horizontal well are horizontal
The length of section is 500 meters.
6. combination well pattern structure as claimed in claim 5, which is characterized in that the well of the first level well and third horizontal well
Away from being 460 meters.
7. combination well pattern structure as claimed in claim 2, which is characterized in that the oil of the water injection well to the lower series of strata oil reservoir
The distance at layer bottom is between 1 meter to 2 meters.
8. as claimed in claim 7 combination well pattern structure, which is characterized in that the producing well to the horizontal well it is vertical away from
From between 5 meters to 15 meters.
9. combination well pattern structure as described in claim 1, which is characterized in that the water injection well is located at the upper series of strata reservoir oil
Well section in layer is full perforated interval.
10. combination well pattern structure as described in claim 1, which is characterized in that the thickness of the lower series of strata reservoir oil layer is greater than
10 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820800219.3U CN208473830U (en) | 2018-05-28 | 2018-05-28 | Combine well pattern structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820800219.3U CN208473830U (en) | 2018-05-28 | 2018-05-28 | Combine well pattern structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473830U true CN208473830U (en) | 2019-02-05 |
Family
ID=65219095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820800219.3U Active CN208473830U (en) | 2018-05-28 | 2018-05-28 | Combine well pattern structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208473830U (en) |
-
2018
- 2018-05-28 CN CN201820800219.3U patent/CN208473830U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Theories and practices of carbonate reservoirs development in China | |
| CN104278980B (en) | A kind of method using transformation volume to optimize fine and close profit horizontal well seam network parameters | |
| CN105239990A (en) | Placing method of self-simulating lateral-displacement horizontal well of super-low permeability tight reservoir | |
| US20120290211A1 (en) | System and method for determining properties of a hydrocarbon reservoir based on production data | |
| CN105672978A (en) | Horizontal displacement type five-point horizontal well three-dimensional well pattern distributing method | |
| CN104110242A (en) | Method for increasing extraction rate of later exploitation stage of heterogeneous reservoir | |
| CN104033137B (en) | Oilfield sewage is utilized to improve fault block oil reservoir recovery ratio method | |
| CN206309375U (en) | The improvement well pattern structure of rhombic inverted nini-spot well pattern | |
| Labastie | En route: increasing recovery factors: a necessity | |
| CN110173252A (en) | A kind of encryption method and its evaluation method of horizontal well development gas reservoir well pattern | |
| CN208473829U (en) | Combine well pattern structure | |
| Taixian et al. | Techniques for high-efficient development of offshore fluvial oilfields | |
| CN208473830U (en) | Combine well pattern structure | |
| Gould et al. | An analysis of infill drilling | |
| CN106639996A (en) | Method for developing ultra-low permeability reservoir by combining vertical well volume fracturing and line flooding | |
| CN206309377U (en) | Improvement well pattern structure based on rhombic inverted nini-spot well pattern | |
| CN205558884U (en) | Improve well pattern structure of sandstone oil reservoir rate of oil production | |
| Carlson | Reservoir characterization of fractured reservoirs in Western Canada | |
| Al-Ajmi et al. | Innovative Pattern Balancing and Waterflood Optimization of a Super Giant Carbonate Mauddud Reservoir, Sabiriyah Field, North Kuwait | |
| CN206309376U (en) | The improvement well pattern structure of rhombic inverted nini-spot well pattern | |
| Levy et al. | Geomorphology of carbonate systems and reservoir modeling: Carbonate training images, fdm cubes, and mps simulations | |
| Paredes et al. | Implementing Selective Water Injection Strategy in Thin Reservoirs of a Mature Field in Ecuador | |
| Jena et al. | Exploration strategy in Tripura Fold Belt, Assam & Assam Arakan Basin, India–some contemporary approach | |
| Meehan | A Comparison of North American and International Risks in Unconventional Resource Plays | |
| Dashti et al. | The Well Simulation Modeling Studies for Field Development of Wara Reservoir, Greater Burgan Field, Kuwait |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |