CN202360027U - Drilling operation structure for horizontal oil well - Google Patents
Drilling operation structure for horizontal oil well Download PDFInfo
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- CN202360027U CN202360027U CN2011205039866U CN201120503986U CN202360027U CN 202360027 U CN202360027 U CN 202360027U CN 2011205039866 U CN2011205039866 U CN 2011205039866U CN 201120503986 U CN201120503986 U CN 201120503986U CN 202360027 U CN202360027 U CN 202360027U
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- hole angle
- drilling operation
- increasing hole
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Abstract
The utility model relates to the field of horizontal oil wells, in particular relates to a drilling operation structure for a horizontal oil well. The drilling operation structure at least comprises a polycrystalline diamond compact (PDC) drilling bit and a bored well consisting of a straight section, an angle-buildup section and a horizontal section, wherein the angle-buildup section is divided into a first angle-buildup section and a second angle-buildup section; and a middle measurement position is reserved between the two angle-buildup sections. The drilling operation structure is characterized in that the straight section and the first angle-buildup section of the bored well are boreholes of the same specification; and the bored well is drilled through the PDC drilling bit with the same specification as the straight section and the first angle-buildup section. According to the drilling operation structure for the horizontal oil well, the tripping operation frequency is reduced, the drilling period is shortened, and the construction risk is reduced.
Description
Technical field
The utility model relates to oil well horizontal well field, particularly a kind of oil well horizontal well drilling operation structure.
Technical background
In recent years, the oil well horizontal well drilling technology had obtained very great development, but horizontal well drilling technology speed-raising relatively at present; Horizontal well creeps into and exists construction period longer, and work progress makes a trip often, and wherein 09 annual mean of oil field, Jingan County makes a trip 8 times; Use 8 on drill bit; Drilling period 22.8 days, every mouthful of well of high font size horizontal well 09 annual mean in marquis city uses drill bit more than 6, drilling period 19 days.
At first two open and use the 222.2mm drill bit to creep into, be drilled into the increasing hole angle point and change 215.9mm rock bit deflecting increasing hole angle and creep into middle location and put, straight well section and inclination section use different size, dissimilar drill bit; Secondly, measuring in into window uses the rock bit increasing hole angle to creep into; Horizontal segment uses roller bit cutting once more, and the rock bit life-span is short, and single drilling depth is no more than 200m, and the drill bit accident is prone to take place, and long horizontal segment makes a trip often, has a big risk, and drilling period is long.
Goal of the invention
The purpose of the utility model is to develop a cover can reduce the number of times that makes a trip, and shortens drilling period, reduces the oil well horizontal well drilling operation structure of construction risk.
The purpose of the utility model is achieved in that a kind of oil well horizontal well drilling operation structure; Which comprises at least the PDC drill bit; And the drilling well that constitutes by straight well section, increasing hole angle section and horizontal segment, wherein the increasing hole angle section is divided into the first increasing hole angle section and the second increasing hole angle section, puts for middle location between the two increasing hole angle sections; It is characterized in that: the straight well section of drilling well and the first increasing hole angle section are the well of same size, through creeping into straight well section and the identical PDC drill bit of the first increasing hole angle section well specification.
The described straight well section and the first increasing hole angle section borehole size are 222mm or 218mm.
Described straight well section and the used PDC bit size of the first increasing hole angle section are 222mm or 218mm.
Described PDC drill bit is the 222TDM1925SEU drill bit.
The described second increasing hole angle section is 215.9mm to the borehole size of horizontal segment.
The described second increasing hole angle section is through the roller bit cutting of 215.9mm.
Described horizontal segment borehole size is 215.9mm.
The PDC drill bit of described horizontal segment through 215.9mm adds the centralizer BHA and creeps into.
Described PDC drill bit is 215.9mmEDM1616EL or CM1665SSR model drill bit.
The beneficial effect of the utility model is: this horizontal well drilling operation structure, carried out the casing programme after the optimization to casing programme and changed angle buildup interval into the 222mm identical with the straight well section or 218mm well.The 215.9mm rock bit of angle buildup interval drill bit during by original deflecting change into 222mm that direct usefulness two opens or 218mmPDC bit drills proceed in location put; Horizontal segment bores technology one time, and horizontal segment uses a strong footpath PDC bit drills of protecting to finishing drilling, reduces because of occurring drill bit failures in the drilling process, shortens drilling period, has practiced thrift cost greatly.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is further specified.
Fig. 1 is this drillng operation structural representation;
Fig. 2 is the two header structure sketch mapes that spud in..
Among the figure: 1, straight well section; 2, the first increasing hole angle section; 3, the second increasing hole angle section; 4, horizontal segment; 5, middle location is put; 6, PDC drill bit.
Specific embodiments
A kind of oil well horizontal well drilling operation structure which comprises at least PDC drill bit 6, sees Fig. 2; And the drilling well that constitutes by straight well section 1, increasing hole angle section and horizontal segment 4; Wherein the increasing hole angle section is divided between the first increasing hole angle section 2 and the second increasing hole angle section, 3, the two increasing hole angle sections and puts 5 for middle location, sees Fig. 1; The straight well section 1 of drilling well and the first increasing hole angle section 2 are the well of same size, through creeping into straight well section 1 and the identical PDC drill bit 6 of the first increasing hole angle section, 2 well specifications.
The straight well section 1 of present embodiment and the first increasing hole angle section, 2 borehole sizes are 222mm; PDC drill bit 6 sizes are similarly 222mm, and what PDC drill bit 6 was selected for use is the 222TDM1925SEU drill bit.
The second increasing hole angle section 3 is 215.9mm to the borehole size of horizontal segment 4, through the roller bit cutting of 215.9mm.
In the oil well horizontal well construction, according to the length of distance before the target, determine preferred casing programme and drill bit, the horizontal well long to distance before the target needs rate of increase of angle low, uses 222TDM1925SEU drill bit two to open, and brill two reaches middle location and puts 5.Guarantee that two reach the middle brill of realization of surveying.
This oil well horizontal well drilling operation structure reduces the number of times that makes a trip, and reaches two and opens the finishing drilling of back three brills, shortens drilling period, reduces construction risk.Realize that oil well horizontal well construction technology is than quantum jump.
In the oil well horizontal well construction, according to the length of distance before the target, determine preferred casing programme and drill bit, for the short horizontal well of distance before the target, select this drill bit of owing size for use, what present embodiment adopted is that straight well section 1 and the first increasing hole angle section, 2 borehole sizes are 218mm; PDC drill bit 6 sizes are similarly 218mm.
Claims (9)
1. oil well horizontal well drilling operation structure; Which comprises at least the PDC drill bit; And the drilling well that constitutes by straight well section, increasing hole angle section and horizontal segment, wherein the increasing hole angle section is divided into the first increasing hole angle section and the second increasing hole angle section, puts for middle location between the two increasing hole angle sections; It is characterized in that: the straight well section of drilling well and the first increasing hole angle section are the well of same size, through creeping into straight well section and the identical PDC drill bit of the first increasing hole angle section well specification.
2. oil well horizontal well drilling operation structure according to claim 1 is characterized in that: the described straight well section and the first increasing hole angle section borehole size are 222mm or 218mm.
3. oil well horizontal well drilling operation structure according to claim 1 and 2 is characterized in that: described straight well section and the used PDC bit size of the first increasing hole angle section are 222mm or 218mm.
4. oil well horizontal well drilling operation structure according to claim 1 is characterized in that: described PDC drill bit is the 222TDM1925SEU drill bit.
5. oil well horizontal well drilling operation structure according to claim 1 is characterized in that: the described second increasing hole angle section is 215.9mm to the borehole size of horizontal segment.
6. according to claim 1 or 5 described oil well horizontal well drilling operation structures, it is characterized in that: the described second increasing hole angle section is through the roller bit cutting of 215.9mm.
7. oil well horizontal well drilling operation structure according to claim 1 is characterized in that: described horizontal segment borehole size is 215.9mm.
8. according to claim 1 or 7 described oil well horizontal well drilling operation structures, it is characterized in that: the PDC drill bit of described horizontal segment through 215.9mm adds the centralizer BHA and creeps into.
9. oil well horizontal well drilling operation structure according to claim 8 is characterized in that: described PDC drill bit is 215.9mmEDM1616EL or CM1665SSR model drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205039866U CN202360027U (en) | 2011-12-07 | 2011-12-07 | Drilling operation structure for horizontal oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205039866U CN202360027U (en) | 2011-12-07 | 2011-12-07 | Drilling operation structure for horizontal oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360027U true CN202360027U (en) | 2012-08-01 |
Family
ID=46571219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205039866U Expired - Fee Related CN202360027U (en) | 2011-12-07 | 2011-12-07 | Drilling operation structure for horizontal oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360027U (en) |
-
2011
- 2011-12-07 CN CN2011205039866U patent/CN202360027U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20171207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |