CN207177876U - Shale gas well well pattern structure - Google Patents
Shale gas well well pattern structure Download PDFInfo
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- CN207177876U CN207177876U CN201720939594.1U CN201720939594U CN207177876U CN 207177876 U CN207177876 U CN 207177876U CN 201720939594 U CN201720939594 U CN 201720939594U CN 207177876 U CN207177876 U CN 207177876U
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Abstract
The utility model discloses a kind of shale gas well well pattern structure, including：First level well,The horizontal segment of target spot with first level well and the first level well from target spot extension,Second horizontal well,The horizontal segment of target spot with the second horizontal well and the second horizontal well from target spot extension,3rd horizontal well,The horizontal segment of target spot with the 3rd horizontal well and the 3rd horizontal well from target spot extension,And the 4th horizontal well,The horizontal segment of target spot with the 4th horizontal well and the 4th horizontal well from target spot extension,And the first non-aqueous horizontal well,Target spot with the first non-aqueous horizontal well,The target spot of 3rd horizontal well and the target spot of first level well,With the both sides of the target spot of the 4th horizontal well and the target spot of the target spot point row of the second horizontal well and the first non-aqueous horizontal well,The target spot of first non-aqueous horizontal well is located at the target spot of first level well,The target spot of second horizontal well,The center of the target spot of 4th horizontal well and the target spot of the 3rd horizontal well.The well pattern structure is constructed and exploitation difficulty is small.
Description
Technical field
It the utility model is related to a kind of shale gas well well pattern structure.
Background technology
At present, it is more both at home and abroad that shale gas is developed using horizontal well patterns.Horizontal well in horizontal well patterns can be with
It is arranged in parallel along the minimum horizontal principal stress direction of shale gas reservoir reservoir, multistage fracturing crack can be made perpendicular to the water of horizontal well
Flat section direction, obtain the drainage area of larger shale gas reservoir reservoir.
But the horizontal segment of the horizontal well in horizontal well patterns extends to the both sides of shale gas reservoir reservoir, causes Horizontal Well
Shale gas reservoir reservoir is not utilized and causes the wasting of resources corresponding to the center of net.In order to overcome this defect, part shale
Gas reservoir is developed, in Fig. 1, horizontal well A and horizontal well B edges using " fish hook " type Horizontal Well web frame as shown in Figure 1
It is in staggered distribution perpendicular to the minimum principal stress direction of shale gas reservoir reservoir, horizontal well A and horizontal well B inclination section are circular arc,
Although the center of shale gas reservoir reservoir and the both sides in minimum horizontal principal stress direction are fully developed, drilling well is applied
Work difficulty is big, and shale gas exploitation difficulty also accordingly increases.
Utility model content
In order to solve the above technical problems, a kind of wellbore construction difficulty of the utility model offer is small, and shale is covered comprehensively
The shale gas well well pattern structure of Gas Reservoir.Technical scheme is as follows：
The utility model embodiment provides a kind of shale gas well well pattern structure, including：
First level well, the first level well have the target spot of first level well and the target spot from the first level well
The horizontal segment of the first level well of extension,
Second horizontal well, second horizontal well have the target spot of the second horizontal well and the target spot from second horizontal well
The horizontal segment of second horizontal well of extension,
3rd horizontal well, the 3rd horizontal well have the target spot of the 3rd horizontal well and the target spot from the 3rd horizontal well
The horizontal segment of 3rd horizontal well of extension, and
4th horizontal well, the 4th horizontal well have the target spot of the 4th horizontal well and the target spot from the 4th horizontal well
The horizontal segment of 4th horizontal well of extension, and
First non-aqueous horizontal well, the first non-aqueous horizontal well have the target spot of the first non-aqueous horizontal well,
Wherein,
The target spot of 3rd horizontal well is located at the target spot of the described first non-aqueous horizontal well with the target spot of the first level well
Side,
The target spot of 4th horizontal well is located at the target spot of the described first non-aqueous horizontal well with the target spot of second horizontal well
Opposite side,
The target spot of the first non-aqueous horizontal well be located at the target spot of the first level well, second horizontal well target spot,
The center of the target spot of 4th horizontal well and the target spot of the 3rd horizontal well.
Preferably, the target spot of the first level well, the target spot of second horizontal well, the target of the 4th horizontal well
The target spot of point and the 3rd horizontal well is distributed clockwise or counterclockwise.
Preferably, the described first non-aqueous horizontal well is the first Wells.
It is highly preferred that the distance of the target spot of the first level well and the target spot of second horizontal well is 200-350m,
The distance of the target spot of 3rd horizontal well and the target spot of the 4th horizontal well is 200-350m.
Preferably, the length of the horizontal segment of the first level well is 1000-3000m,
The length of the horizontal segment of second horizontal well is 1000-3000m,
The length of the horizontal segment of 3rd horizontal well is 1000-3000m,
Preferably, the horizontal segment of the first level well is parallel with the horizontal segment of the 3rd horizontal well, and the two
Distance is 250-400m,
The horizontal segment of second horizontal well is parallel with the horizontal segment of the 4th horizontal well, and the distance of the two is
250-400m。
Preferably, the well pattern structure also includes：
5th horizontal well, the 5th horizontal well have fiveth horizontal well adjacent with the target spot of the 3rd horizontal well
The horizontal segment of target spot and the 5th horizontal well extended from the target spot of the 5th horizontal well, and
The target spot of the target spot of 5th horizontal well and the target spot of the first level well and the 3rd horizontal well is located at
The side of the target spot of the first non-aqueous horizontal well.
It is highly preferred that the horizontal segment of the 5th horizontal well is parallel with the horizontal segment of the 3rd horizontal well, and the two
Distance be 250-400m.
It is highly preferred that the well pattern structure also includes：
6th horizontal well, the 6th horizontal well have the target spot of the 6th horizontal well and from the 6th horizontal wells
The horizontal segment of 6th horizontal well of target spot extension,
The target spot of the target spot of 6th horizontal well, the target spot of second horizontal well and the 4th horizontal well is located at institute
State the opposite side of the target spot of the first non-aqueous horizontal well.
It is highly preferred that the target spot of the 6th horizontal well is adjacent with the target spot of the 4th horizontal well,
The target spot of 3rd horizontal well, target spot, target spot, the Yi Jisuo of the 6th horizontal well of the 4th horizontal well
The target spot for stating the 5th horizontal well is distributed clockwise or counterclockwise,
The well pattern structure also includes：
Second non-aqueous horizontal well, the second non-aqueous horizontal well have the target spot of the second non-aqueous horizontal well,
Wherein,
The target spot of the second non-aqueous horizontal well be located at the target spot of the 3rd horizontal well, the 4th horizontal well target spot,
The center of the target spot of 6th horizontal well and the target spot of the 5th horizontal well.
It is highly preferred that the second non-aqueous horizontal well is the second Wells.
It is highly preferred that the horizontal segment of the 6th horizontal well is parallel with the horizontal segment of the 4th horizontal well, and the two
Distance be 250-400m.
It is highly preferred that the well pattern structure also includes：
7th horizontal well, the 7th horizontal well have seventh horizontal well adjacent with the target spot of the 5th horizontal well
The horizontal segment of target spot and the 7th horizontal well extended from the target spot of the 7th horizontal well,
The target spot of 7th horizontal well and the target spot of the 5th horizontal well, the 3rd horizontal well target spot and
The target spot of the first level well is located at the side of the target spot of the described first non-aqueous horizontal well,
The horizontal segment of 7th horizontal well is parallel with the horizontal segment of the 5th horizontal well, and the distance of the two is
250-400m。
It is highly preferred that the well pattern structure also includes：
8th horizontal well, the 8th horizontal well have eightth horizontal well adjacent with the target spot of the 6th horizontal well
The horizontal segment of target spot and the 8th horizontal well extended from the target spot of the 8th horizontal well, and
3rd non-aqueous horizontal well, the 3rd non-aqueous horizontal well have the target spot of the 3rd non-aqueous horizontal well,
Wherein, the target spot of the 5th horizontal well, the target spot of the 6th horizontal well, the 8th horizontal well target spot,
And the target spot of the 7th horizontal well is distributed clockwise or counterclockwise,
The target spot of the 3rd non-aqueous horizontal well be located at the target spot of the 5th horizontal well, the 6th horizontal well target spot,
The center of the target spot of 8th horizontal well and the target spot of the 7th horizontal well.
It is highly preferred that the 3rd non-aqueous horizontal well is the 3rd Wells.
It is highly preferred that the horizontal segment of the 8th horizontal well is parallel with the horizontal segment of the 6th horizontal well, and the two
Distance be 250-400m.
The beneficial effect of technical scheme that the utility model embodiment provides is：Due to the target spot and first of the 3rd horizontal well
The target spot of horizontal well is located at the side of the target spot of the first non-aqueous horizontal well, the target spot of the 4th horizontal well and the target spot position of the second horizontal well
In the opposite side of the target spot of the first non-aqueous horizontal well；And the horizontal segment of first level well extends from the target spot of first level well, the
The horizontal segment of two horizontal wells extends from the target spot of the second horizontal well, and the target spot of horizontal segment from the 3rd horizontal well of the 3rd horizontal well prolongs
Stretch, the horizontal segment of the 4th horizontal well extends from the target spot of the 4th horizontal well so that target spot, the second level positioned at first level well
Shale gas reservoir reservoir is not developed between the target spot of the target spot of well, the target spot of the 3rd horizontal well and the 4th horizontal well, because
This, sets up the first non-aqueous horizontal well, and the target spot of the first non-aqueous horizontal well is located at the target spot of first level well, the target of the second horizontal well
The center of the target spot of point, the target spot of the 4th horizontal well and the 3rd horizontal well so that target spot positioned at first level well,
Shale gas reservoir reservoir obtains fully between the target spot of the target spot of two horizontal wells, the target spot of the 3rd horizontal well and the 4th horizontal well
Ground is developed, and small relative to horizontal well patterns (as shown in Figure 1) difficulty of construction of existing " fish hook " type, and shale gas exploitation is difficult
Degree is also corresponding to be reduced, and moreover, the first non-aqueous horizontal well can also be used as geologic information well, be first level in drilling process
The exploitation of well, the second horizontal well, the 3rd horizontal well and the 4th horizontal well provides the geologic information more closed to, and instructs the first water
Horizontal well, the second horizontal well, the wellbore construction of the 3rd horizontal well and the 4th horizontal well.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing shale gas well well pattern structure；
Fig. 2 is the schematic diagram of the shale gas well well pattern structure of the utility model the first embodiment offer；
Fig. 3 is the schematic diagram for the shale gas well well pattern structure that second of embodiment of the utility model provides；
Reference in figure represents respectively：
1st, first level well；101st, the target spot of first level well；102nd, the horizontal segment of first level well；103rd, first level
The well head of well；
2nd, the second horizontal well；201st, the target spot of the second horizontal well；202nd, the horizontal segment of the second horizontal well；203rd, second is horizontal
The well head of well；
3rd, the 3rd horizontal well；301st, the target spot of the 3rd horizontal well；302nd, the horizontal segment of the 3rd horizontal well；303rd, the 3rd is horizontal
The well head of well；
4th, the 4th horizontal well；401st, the target spot of the 4th horizontal well；402nd, the horizontal segment of the 4th horizontal well；403rd, the 4th is horizontal
The well head of well；
5th, the first non-aqueous horizontal well；501st, the target spot of the first non-aqueous horizontal well；503rd, the well head of the first non-aqueous horizontal well；
6th, the 5th horizontal well；601st, the target spot of the 5th horizontal well；602nd, the horizontal segment of the 5th horizontal well；
7th, the 6th horizontal well；701st, the target spot of the 6th horizontal well；702nd, the horizontal segment of the 6th horizontal well；
8th, the second non-aqueous horizontal well；801st, the target spot of the second non-aqueous horizontal well；803rd, the well head of the second non-aqueous horizontal well；
9th, the 7th horizontal well；901st, the target spot of the 7th horizontal well；902nd, the horizontal segment of the 7th horizontal well；903rd, the 7th is horizontal
The well head of well；
10th, the 8th horizontal well；1001st, the target spot of the 8th horizontal well；1002nd, the horizontal segment of the 8th horizontal well；1003rd, the 8th
The well head of horizontal well；
11st, the 3rd non-aqueous horizontal well；1101st, the target spot of the 3rd non-aqueous horizontal well；1103rd, the well head of the 3rd non-aqueous horizontal well.
Embodiment
To make the technical solution of the utility model and advantage clearer, the utility model is implemented below in conjunction with accompanying drawing
Mode is described in further detail.
The first embodiment
The shale gas well well pattern structure of the first embodiment of the utility model refers to Fig. 2, and Fig. 2 is the utility model the
A kind of schematic diagram for the shale gas well well pattern structure that embodiment provides.In fig. 2, the shale gas well well of the first embodiment
Web frame, including：First level well 1, first level well 1 have the target spot 101 of first level well and the target from first level well
The horizontal segment 102 of the first level well of the extension of point 101, the second horizontal well 2, the second horizontal well 2 have the target spot of the second horizontal well
201 and the horizontal segment 202 of the second horizontal well extended from the target spot 201 of the second horizontal well, the 3rd horizontal well 3, the 3rd horizontal well 3
The horizontal segment 302 for the 3rd horizontal well that target spot 301 with the 3rd horizontal well and the target spot 301 from the 3rd horizontal well extend, with
And the 4th horizontal well 4, the 4th horizontal well 4 has a target spot 401 of the 4th horizontal well and the target spot 401 from the 4th horizontal well extends
The horizontal segment 402 of 4th horizontal well, and the first non-aqueous horizontal well 5, the first non-aqueous horizontal well 5 have the target spot of the first non-aqueous horizontal well
501, wherein, the target spot 301 of the 3rd horizontal well and the target spot 101 of first level well are located at the target spot 501 of the first non-aqueous horizontal well
Side, the target spot 401 of the 4th horizontal well and the target spot 201 of the second horizontal well are located at the another of the target spot 501 of the first non-aqueous horizontal well
Side, the target spot 501 of the first non-aqueous horizontal well are located at the level of target spot the 201, the 4th of the target spot 101 of first level well, the second horizontal well
The center of the target spot 301 of the horizontal well of target spot 401 and the 3rd of well.
The operation principle of the shale gas well well pattern structure of the first embodiment of the utility model is：
Continuing with referring to Fig. 2, because the target spot 301 of the 3rd horizontal well is non-positioned at first with the target spot 101 of first level well
The side of the target spot 501 of horizontal well, the target spot 401 of the 4th horizontal well are non-horizontal positioned at first with the target spot 201 of the second horizontal well
The opposite side of the target spot 501 of well；And the horizontal segment 102 of first level well extends from the target spot 101 of first level well, the second water
The horizontal segment 202 of horizontal well extends from the target spot 201 of the second horizontal well, and the horizontal segment 302 of the 3rd horizontal well is from the 3rd horizontal well
Target spot 301 extends, and the target spot 401 of horizontal segment 402 from the 4th horizontal well of the 4th horizontal well extends so that positioned at first level well
Target spot 101, the target spot 201 of the second horizontal well, the 3rd horizontal well the horizontal well of target spot 301 and the 4th target spot 401 between
Shale gas reservoir reservoir is not developed, and therefore, sets up the first non-aqueous horizontal well 5, and the target spot 501 of the first non-aqueous horizontal well is located at
The target spot 101 of first level well, the target spot 201 of the second horizontal well, the 4th horizontal well the horizontal well of target spot 401 and the 3rd target
The center of point 301 so that the target spot 201 of target spot 101, the second horizontal well positioned at first level well, the 3rd horizontal well
Shale gas reservoir reservoir is fully developed between the target spot 401 of the horizontal well of target spot 301 and the 4th, and relative to existing
" fish hook " type horizontal well patterns (as shown in Figure 1) difficulty of construction it is small, shale gas exploitation difficulty also accordingly reduces, not only such as
This, the first non-aqueous horizontal well 5 can also be used as geologic information well, be first level well 1, the second horizontal well 2, the in drilling process
The exploitation of three horizontal wells 3 and the 4th horizontal well 4 provides the geologic information more closed to, and instructs first level well 1, second horizontal
The wellbore construction of well 2, the 3rd horizontal well 3 and the 4th horizontal well 4.
In the present embodiment, the target spot 101 of the first level well, the target spot 201 of second horizontal well, described
The target spot 301 of the target spot 401 of four horizontal wells and the 3rd horizontal well is distributed clockwise or counterclockwise.Further, first
The line of the target spot 301 of the horizontal well of target spot 101 and the 3rd of horizontal well can be horizontal with the target spot 201 and the 4th of the second horizontal well
The line of the target spot 401 of well is parallel.
In the present embodiment, the described first non-aqueous horizontal well 5 can be the first straight well or the first Wells, preferably first
Wells, position of the well head in well site of the first non-aqueous horizontal well of the first non-aqueous horizontal well 5 so can be flexibly set.It is specific and
Speech, as shown in Fig. 2 the well head 503 of the first non-aqueous horizontal well can be with the well head of the horizontal well of well head 203 and the 4th of the second horizontal well
403 in same row.The distance of the well head 203 of the horizontal well of well head 103 and second of first level well is 30-35m, the 3rd horizontal well
The distance of well head 403 of the horizontal well of well head 303 and the 4th be 30-35m.The horizontal well of well head 103 and the 3rd of first level well
The distance between well head 303 be 5-8m.When two rows are parallel, the distance between a row and another row are 30-35m.Second water
The distance between well head 403 of the horizontal well of well head 203 and the 4th of horizontal well is 5-8m.I.e. in same row, two neighboring level
The distance between well head of well is 5-8m.
Those skilled in the art can be according to position and first non-aqueous horizontal well of the well head of the first non-aqueous horizontal well in well site
Target spot 501 determine the hole angle of the first non-aqueous horizontal well 5, therefore do not make specifically herein for the hole angle of the first non-aqueous horizontal well 5
Limit.
Further, in the present embodiment, the target spot 201 of the target spot 101 of the first level well and second horizontal well
Distance can be 200-350m, preferably 250-300m, target spot 301 and the 4th horizontal well of the 3rd horizontal well
The distance of target spot 401 can be 200-350m, preferably 250-300m.
Further, in the present embodiment, the length of the horizontal segment 102 of the first level well can be 1000-3000m,
Preferably 1050-2800m, the length of the horizontal segment 202 of second horizontal well can be 1000-3000m, preferably 1050-
2800m, the length of the horizontal segment 302 of the 3rd horizontal well can be 1000-3000m, preferably 1050-2800m, described
The length of the horizontal segment 402 of four horizontal wells can be 1000-3000m, preferably 1050-2800m.If shale gas reservoir reservoir with
Horizontal plane has angle, i.e. shale gas reservoir reservoir is inclined that then the length of the acclivitous horizontal segment of horizontal well can be
1000-2000m, preferably 1050-1700m, the length of the horizontal segment tilted down can be 1000-3000m, be preferably
1350-2800m.For example, the bearing of trend of the horizontal segment 302 of the horizontal well of horizontal segment 102 and the 3rd of first level well is stratum
Updip direction, then the length of the two can be 1000-2000m, preferably 1050-1700m, the horizontal segment of the second horizontal well
202 and the 4th horizontal well horizontal segment 402 bearing of trend the horizontal segment 202 for stratum downdip direction, then the second horizontal well
Length with the horizontal segment 402 of the 4th horizontal well can be 1000-3000m, preferably 1350-2800m.The water of first level well
Flat section 102, the horizontal segment 202 of the second horizontal well, the 3rd horizontal well the horizontal well of horizontal segment 302 and the 4th horizontal segment 402
Every 55-80m be provided with 2-3 showers hole cluster X, be 0.6-1m per shower hole cluster X length, two neighboring perforation cluster X spacing
For 15-30m.The horizontal segment 102 of first level well, the horizontal segment 202 of the second horizontal well, the 3rd horizontal well horizontal segment 302, with
And the 4th horizontal well horizontal segment 402 be located at high-quality shale development reservoir, and along high-quality shale develop reservoir minimum level
Principal direction of stress is distributed.
In addition, the horizontal segment 102 of the first level well in present embodiment is parallel with the horizontal segment 302 of the 3rd horizontal well,
And the distance of the two can with 250-400m, preferably 250-300m, the horizontal well of horizontal segment 202 and the 4th of the second horizontal well
Horizontal segment 402 is parallel, and the distance of the two can be with 250-400m, preferably 250-300m.
Second of embodiment
Fig. 3 is referred to, Fig. 3 is the signal for the shale gas well well pattern structure that second of embodiment of the utility model provides
Figure.As shown in figure 3, the well pattern structure also includes：5th horizontal well 6, the 5th horizontal well 6 have and the 3rd horizontal well
Adjacent the 5th horizontal well of target spot 301 target spot 601 and the 5th water that extends from the target spot 601 of the 5th horizontal well
The horizontal segment 602 of horizontal well, and the target spot 601 of the 5th horizontal well and the target spot 101 of the first level well and described the
The target spot 301 of three horizontal wells is located at the side of the target spot 501 of the described first non-aqueous horizontal well.
In the present embodiment, the horizontal segment 302 of the horizontal segment 602 and the 3rd horizontal well of the 5th horizontal well is flat
OK, and the distance of the two can be with 250-400m, preferably 250-300m.
In the present embodiment, the well pattern structure also includes：6th horizontal well 7, the 6th horizontal well 7 have the 6th
The horizontal segment 702 of the target spot 701 of horizontal well and the 6th horizontal well extended from the target spot 701 of the 6th horizontal well, it is described
The target spot 401 of the target spot 701 of 6th horizontal well, the target spot 201 of second horizontal well and the 4th horizontal well is positioned at described the
The opposite side of the target spot 501 of one non-aqueous horizontal well.The length of the horizontal segment 702 of the horizontal well of horizontal segment 602 and the 6th of 5th horizontal well
Degree can be 1000-3000m, preferably 1050-2800m.If shale gas reservoir reservoir has angle, i.e. shale gas with horizontal plane
It is inclined to hide reservoir, then the length of the horizontal segment 602 of the 5th horizontal well can be 1000-2000m, preferably 1050-
1700m, the length of the horizontal segment 702 of the 6th horizontal well can be 1000-3000m, preferably 1350-2800m.
In the present embodiment, the target spot 701 of the 6th horizontal well is adjacent with the target spot 401 of the 4th horizontal well,
The target spot 301 of 3rd horizontal well, the target spot 401 of the 4th horizontal well, the target spot 701 of the 6th horizontal well and
The target spot 601 of 5th horizontal well is distributed clockwise or counterclockwise, if the target spot 101 of the first level well, described
The target spot 301 of the target spot 201 of two horizontal wells, the target spot 401 of the 4th horizontal well and the 3rd horizontal well is clockwise
It is distributed, then target spot 401, the target spot of the 6th horizontal well of the target spot 301 of the 3rd horizontal well, the 4th horizontal well
701 and the 5th horizontal well target spot 601 for clockwise distribution；If the target spot 101 of the first level well, described
The target spot 301 of the target spot 201 of second horizontal well, the target spot 401 of the 4th horizontal well and the 3rd horizontal well is the inverse time
Pin is distributed, then target spot 401, the target spot of the 6th horizontal well of the target spot 301 of the 3rd horizontal well, the 4th horizontal well
701 and the 5th horizontal well target spot 601 for counterclockwise distribution.
The well pattern structure also includes：Second non-aqueous horizontal well 8, the second non-aqueous horizontal well 8 have the target of the second non-aqueous horizontal well
Point 801, wherein, the target spot 801 of the second non-aqueous horizontal well is located at the target spot 301 of the 3rd horizontal well, the 4th level
The center of the target spot 601 of the target spot 401 of well, the target spot 701 of the 6th horizontal well and the 5th horizontal well, the
Two non-aqueous horizontal wells 8 can be to the target spot 301 of the 3rd horizontal well, the target spot 401 of the 4th horizontal well, the 6th level
Shale gas reservoir reservoir between the target spot 601 of the target spot 701 of well and the 5th horizontal well is fully developed.
Described second non-aqueous horizontal well 8 of present embodiment can be the second straight well or the second Wells, and preferably second is oblique
Spend well.The well head of second non-aqueous horizontal well of the second non-aqueous horizontal well 8 so can be flexibly set.As shown in figure 3, the second non-aqueous horizontal well
Well head 803 can be with the well head 403 of the horizontal well of well head 203 and the 4th of the second horizontal well in same row.
Those skilled in the art can be according to the well head 803 of the second non-aqueous horizontal well in well site position and second it is non-horizontal
The target spot 801 of well determines the hole angle of the second non-aqueous horizontal well 8, is not limited specifically herein for the hole angle of the second non-aqueous horizontal well 8
It is fixed.
The well head 103 of first level well, the horizontal well of well head 303 and the 5th of the 3rd horizontal well well head 603 where
One row, the place of well head 703 of the horizontal well of well head 403 and the 6th of well head 203, the 4th horizontal well with the second horizontal well
One row is parallel, and distance therebetween is 30-35m.The distance between adjacent well head of two horizontal wells is 5- in same row
8m。
The horizontal segment 402 of the horizontal segment 702 and the 4th horizontal well of the 6th horizontal well in present embodiment is flat
OK, and the distance of the two can be 250-400m, preferably 250-300m, to the minimum principal stress direction of shale gas reservoir reservoir
Extension.
Further, the well pattern structure also includes：7th horizontal well 9, the 7th horizontal well 9 have and the 5th water
The target spot 901 of the 7th adjacent horizontal well of the target spot 601 of horizontal well and extend from the target spot 901 of the 7th horizontal well the
The horizontal segment 902 of seven horizontal wells, the target spot 901 of the 7th horizontal well and the target spot 601 of the 5th horizontal well, the described 3rd
The target spot 101 of the target spot 301 of horizontal well and the first level well is located at the one of the target spot 501 of the described first non-aqueous horizontal well
Side, the horizontal segment 902 of the 7th horizontal well is parallel with the horizontal segment 602 of the 5th horizontal well, and the distance of the two can
Think 250-400m, preferably 250-300m.Herein on basis, the well pattern structure also includes：8th horizontal well 10, it is described
8th horizontal well 10 has the target spot 1001 of eightth horizontal well adjacent with the target spot 701 of the 6th horizontal well and from institute
State the horizontal segment 1002 for the 8th horizontal well that the target spot 1001 of the 8th horizontal well extends, and the 3rd non-aqueous horizontal well 11, described the
Three non-aqueous horizontal wells 11 have the target spot 1101 of the 3rd non-aqueous horizontal well, wherein, the target spot 601 of the 5th horizontal well, the described 6th
The target spot 901 of the target spot 701 of horizontal well, the target spot 1001 of the 8th horizontal well and the 7th horizontal well clockwise or
Distribution counterclockwise, the target spot 1101 of the 3rd non-aqueous horizontal well are located at the target spot 601 of the 5th horizontal well, the 6th level
The center of the target spot 901 of the target spot 701 of well, the target spot 1001 of the 8th horizontal well and the 7th horizontal well.
The well head 903 of 7th horizontal well of present embodiment can be arranged on the water of well head 103 and the 3rd of first level well
In a row where the well head 603 of the horizontal well of well head 303 and the 5th of horizontal well, and with the phase of well head 603 of the 5th horizontal well
It is adjacent；The well head 1003 of 8th horizontal well can be arranged on the well head 203 of the second horizontal well, the 4th horizontal well well head 403 and
In another row where the well head 703 of 6th horizontal well, and it is adjacent with the well head 703 of the 6th horizontal well.
3rd non-aqueous horizontal well 11 of present embodiment can be the 3rd straight well or the 3rd Wells, excellent according to describing above
Elect the 3rd Wells as.As shown in figure 3, the well head 1103 of the 3rd non-aqueous horizontal well can be arranged on the well head 103 of first level well
A row where the well head 903 of the horizontal well of well head 603 and the 7th of well head 303, the 5th horizontal well with the 3rd horizontal well
In, and the well head 903 of the 7th horizontal well is adjacent.Those skilled in the art can exist according to the well head 1103 of the 3rd non-aqueous horizontal well
The target spot 1101 of position and the 3rd non-aqueous horizontal well in well site determines the hole angle of the 3rd non-aqueous horizontal well 11, non-herein for the 3rd
The hole angle of horizontal well 11 is not especially limited.
Further, the horizontal segment of the horizontal segment 1002 of the 8th horizontal well of present embodiment and the 6th horizontal well
702 is parallel, and it can be 250-400m, preferably 250-300m that the distance of the two, which is,.
The length of the horizontal segment 1002 of the horizontal well of horizontal segment 902 and the 8th of the 7th horizontal well in present embodiment can be with
The length of the horizontal segment 602 of foregoing 5th horizontal well and the length of the horizontal segment 702 of the 6th horizontal well are referred to respectively, are not made herein
Repeat.
Horizontal segment 602, horizontal segment 702, the 7th horizontal well of the 6th horizontal well of the 5th horizontal well in present embodiment
The horizontal segment 1002 of the horizontal well of horizontal segment 902 and the 8th be respectively arranged with perforation cluster X.The first is referred to for perforation cluster X
Narration in embodiment on perforation cluster X, here is omitted.
From second of embodiment it is known that the quantity of horizontal well can increase one by one, often increase by two mouthfuls of water horizontal wells, can
Increase the non-aqueous horizontal well of a bite, it is adjacent with the two mouthfuls of water horizontal wells increased newly that the target spot of the non-aqueous horizontal well is arranged on two mouthfuls of newly-increased water horizontal wells
Two mouthfuls of water horizontal wells center, the shale gas reservoir reservoir between four mouthfuls of water horizontal wells is developed with reaching, and non-aqueous
Horizontal well is preferably Wells.
It is described above to be for only for ease of it will be understood by those skilled in the art that the technical solution of the utility model, not to
Limit the utility model.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (16)
- A kind of 1. shale gas well well pattern structure, it is characterised in that including：First level well (1), the first level well (1) have the target spot (101) of first level well and from the first levels The horizontal segment (102) of the first level well of target spot (101) extension of well,Second horizontal well (2), second horizontal well (2) have the target spot (201) of the second horizontal well and horizontal from described second The horizontal segment (202) of second horizontal well of target spot (201) extension of well,3rd horizontal well (3), the 3rd horizontal well (3) have the target spot (301) of the 3rd horizontal well and horizontal from the described 3rd The horizontal segment (302) of 3rd horizontal well of target spot (301) extension of well, and4th horizontal well (4), the 4th horizontal well (4) have the target spot (401) of the 4th horizontal well and horizontal from the described 4th The horizontal segment (402) of 4th horizontal well of target spot (401) extension of well, andFirst non-aqueous horizontal well (5), the first non-aqueous horizontal well (5) have the target spot (501) of the first non-aqueous horizontal well,Wherein,The target spot (301) of 3rd horizontal well is located at the described first non-aqueous horizontal well with the target spot (101) of the first level well Target spot (501) side,The target spot (401) of 4th horizontal well is located at the described first non-aqueous horizontal well with the target spot (201) of second horizontal well Target spot (501) opposite side,The target spot (501) of the first non-aqueous horizontal well is located at the target spot (101) of the first level well, second horizontal well The center of the target spot (301) of target spot (201), the target spot (401) of the 4th horizontal well and the 3rd horizontal well.
- 2. well pattern structure according to claim 1, it is characterised in that the target spot (101) of the first level well, described The target spot (301) of the target spot (201) of two horizontal wells, the target spot (401) of the 4th horizontal well and the 3rd horizontal well is suitable Hour hands or counterclockwise distribution.
- 3. well pattern structure according to claim 1, it is characterised in that the first non-aqueous horizontal well (5) is the first Wells.
- 4. well pattern structure according to claim 2, it is characterised in that the target spot (101) of the first level well with it is described The distance of the target spot (201) of second horizontal well is 200-350m, and the target spot (301) of the 3rd horizontal well is horizontal with the described 4th The distance of the target spot (401) of well is 200-350m.
- 5. well pattern structure according to claim 1, it is characterised in thatThe length of the horizontal segment (102) of the first level well is 1000-3000m,The length of the horizontal segment (202) of second horizontal well is 1000-3000m,The length of the horizontal segment (302) of 3rd horizontal well is 1000-3000m,The length of the horizontal segment (402) of 4th horizontal well is 1000-3000m.
- 6. well pattern structure according to claim 1, it is characterised in thatThe horizontal segment (102) of the first level well is parallel with the horizontal segment (302) of the 3rd horizontal well, and the two away from From for 250-400m,The horizontal segment (202) of second horizontal well is parallel with the horizontal segment (402) of the 4th horizontal well, and the two away from From for 250-400m.
- 7. well pattern structure according to claim 1, it is characterised in that the well pattern structure also includes：5th horizontal well (6), the 5th horizontal well (6) have fiveth adjacent with the target spot (301) of the 3rd horizontal well The horizontal segment of the target spot (601) of horizontal well and the 5th horizontal well extended from the target spot (601) of the 5th horizontal well (602), andThe target spot (601) of 5th horizontal well and the target spot (101) of the first level well and the target of the 3rd horizontal well Point (301) is located at the side of the target spot (501) of the described first non-aqueous horizontal well.
- 8. well pattern structure according to claim 7, it is characterised in that the horizontal segment (602) of the 5th horizontal well and institute It is parallel to state the horizontal segment (302) of the 3rd horizontal well, and the distance of the two is 250-400m.
- 9. well pattern structure according to claim 7, it is characterised in that the well pattern structure also includes：6th horizontal well (7), the 6th horizontal well (7) have the target spot (701) of the 6th horizontal well and from the 6th water The horizontal segment (702) of 6th horizontal well of target spot (701) extension of horizontal well,Target spot (701), the target spot (201) of second horizontal well and the target spot of the 4th horizontal well of 6th horizontal well (401) it is located at the opposite side of the target spot (501) of the described first non-aqueous horizontal well.
- 10. well pattern structure according to claim 9, it is characterised in that the target spot (701) of the 6th horizontal well with it is described The target spot (401) of 4th horizontal well is adjacent,The target spot (301) of 3rd horizontal well, target spot (401), the target spot of the 6th horizontal well of the 4th horizontal well (701) and the target spot (601) of the 5th horizontal well is distributed clockwise or counterclockwise,The well pattern structure also includes：Second non-aqueous horizontal well (8), the second non-aqueous horizontal well (8) have the target spot (801) of the second non-aqueous horizontal well,Wherein,The target spot (801) of the second non-aqueous horizontal well is located at the target spot (301) of the 3rd horizontal well, the 4th horizontal well The center of the target spot (601) of target spot (401), the target spot (701) of the 6th horizontal well and the 5th horizontal well.
- 11. well pattern structure according to claim 10, it is characterised in that the second non-aqueous horizontal well (8) is the second gradient Well.
- 12. well pattern structure according to claim 10, it is characterised in that the horizontal segment (702) of the 6th horizontal well with The horizontal segment (402) of 4th horizontal well is parallel, and the distance of the two is 250-400m.
- 13. according to the well pattern structure described in claim any one of 9-12, it is characterised in that the well pattern structure also includes：7th horizontal well (9), the 7th horizontal well (9) have seventh adjacent with the target spot (601) of the 5th horizontal well The horizontal segment of the target spot (901) of horizontal well and the 7th horizontal well extended from the target spot (901) of the 7th horizontal well (902),The target spot (901) of 7th horizontal well and target spot (601), the target spot of the 3rd horizontal well of the 5th horizontal well (301) and the first level well target spot (101) be located at the described first non-aqueous horizontal well target spot (501) side,The horizontal segment (902) of 7th horizontal well is parallel with the horizontal segment (602) of the 5th horizontal well, and the two away from From for 250-400m.
- 14. well pattern structure according to claim 13, it is characterised in that the well pattern structure also includes：8th horizontal well (10), the 8th horizontal well (10) have adjacent the with the target spot (701) of the 6th horizontal well The horizontal segment of the target spot (1001) of eight horizontal wells and the 8th horizontal well extended from the target spot (1001) of the 8th horizontal well (1002), and3rd non-aqueous horizontal well (11), the 3rd non-aqueous horizontal well (11) have the target spot (1101) of the 3rd non-aqueous horizontal well,Wherein, the target spot (601) of the 5th horizontal well, the target spot (701) of the 6th horizontal well, the 8th horizontal well The target spot (901) of target spot (1001) and the 7th horizontal well is distributed clockwise or counterclockwise,The target spot (1101) of the 3rd non-aqueous horizontal well is located at target spot (601), the 6th horizontal well of the 5th horizontal well Target spot (701), the 8th horizontal well target spot (1001) and the 7th horizontal well target spot (901) centre bit Put.
- 15. well pattern structure according to claim 14, it is characterised in that the 3rd non-aqueous horizontal well (11) is the 3rd Wells.
- 16. well pattern structure according to claim 14, it is characterised in that the horizontal segment (1002) of the 8th horizontal well with The horizontal segment (702) of 6th horizontal well is parallel, and the distance of the two is 250-400m.
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| CN110617048A (en) * | 2019-10-08 | 2019-12-27 | 中国石油天然气股份有限公司 | Gas storage well spacing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110617048A (en) * | 2019-10-08 | 2019-12-27 | 中国石油天然气股份有限公司 | Gas storage well spacing method |
| CN110617048B (en) * | 2019-10-08 | 2021-11-02 | 中国石油天然气股份有限公司 | Gas storage well spacing method |
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