CN204571970U - A kind of throw-in type deviational survey seat - Google Patents
A kind of throw-in type deviational survey seat Download PDFInfo
- Publication number
- CN204571970U CN204571970U CN201520268132.2U CN201520268132U CN204571970U CN 204571970 U CN204571970 U CN 204571970U CN 201520268132 U CN201520268132 U CN 201520268132U CN 204571970 U CN204571970 U CN 204571970U
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- deviational survey
- survey seat
- throw
- main cylinder
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Abstract
The utility model belongs to field of petroleum machinery, provides a kind of throw-in type deviational survey seat, comprises deviational survey seat, the main cylinder welded with deviational survey seat; Described main cylinder is column structure; Described main barrel mast is provided with cross through hole; Arrange in described cross through hole and righting rod is installed; Described main cylinder also comprises the damping device with main cylinder screwed connection.By welding main cylinder on deviational survey seat, avoiding the erosion of drilling fluid to deviational survey seat, increasing the application life of deviational survey seat, avoid potential safety hazard; Simultaneously damping device reduce throw-in type deviational survey seat on earth time impact force and inclinometer on earth to the impact force of deviational survey seat; Righting rod makes throw-in type deviational survey seat body centred, ensure that deviational survey effect.<b/>
Description
Technical field
The utility model belongs to mechanical field, especially field of petroleum machinery, particularly relates to a kind of throw-in type deviational survey seat.
Background technology
As situ of drilling well technician, in our daily drilling process, in order to understand wellbore quality in time, deviational survey is the modal work of drilling engineer.
Along with improving constantly of drilling technology, PDC drill bit is widely used.But along with the use of PDC drill bit turn increases a newly job to deviational survey work, the body hydrophthalmia of each lower 8 1/2 " must load onto deviational survey seat before PDC drill bit; reason is conventional 8 1/2 " PDC drill bit is at ∮ 44 ~ 42mm, and the external diameter of conventional inclinometer is ∮ 44mm, hang survey, throwing all can occur stuck instrument or water blockoff eye when surveying, bring a lot of inconvenience to deviational survey, even cause a hidden trouble to downhole safety.
Therefore, the deviational survey work that the use of deviational survey seat creeps into period for PDC drill bit provides safety assurance, but in prior art, deviational survey seat also exists some problems.In drilling process, due to the flowing of drilling fluid, in drilling tool, drilling fluid can produce very high flow velocity, as 12 1/4 " in well drilling tool, flow velocity is up to 12 meter per seconds; 8 1/2 " in well drilling tool, flow velocity also reaches 6.25 meter per seconds, deviational survey seat add the equivalent aera virtually reducing hydrophthalmia, thus produce higher flow velocity at deviational survey seat place, the increase of flow velocity, increases the erosion of drilling fluid to deviational survey seat.Because PDC drill bit is longer in the working time of down-hole, long high speed erosion can cause damage to deviational survey seat and drill collar joint, thus creates unsafe hidden danger.
Therefore, process a kind of can replace deviational survey seat again not washed out auxiliary deviational survey instrument be very necessary.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of throw-in type deviational survey seat, comprises deviational survey seat, the main cylinder welded with deviational survey seat; Described main cylinder is column structure;
Described main barrel mast is provided with cross through hole; Arrange in described cross through hole and righting rod is installed;
Described main cylinder also comprises the damping device with main cylinder screwed connection.
The quantity of described cross through hole is two or more.
Described through hole is longitudinal arrangement on main barrel mast.
Described damping device is spirality steel spring.
Described righting rod is the middle cylindrical structure that slightly two is thin, and its maximum gauge is identical with through-hole diameter.
Described righting rod is quality of rubber materials.
This throw-in type deviational survey seat that the utility model provides has following beneficial effect: installing main cylinder by giving on traditional deviational survey seat, avoiding the erosion of drilling fluid to deviational survey seat, increasing the application life of deviational survey seat, avoid potential safety hazard; Simultaneously damping device reduce throw-in type deviational survey seat on earth time impact force and inclinometer on earth to the impact force of deviational survey seat; Righting rod makes throw-in type deviational survey seat body centred, ensure that deviational survey effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, simply introduce to the accompanying drawing in the description of the utility model embodiment below.
Fig. 1 is structural representation of the present utility model.
Wherein, 1, deviational survey seat; 2, righting rod; 3, main cylinder; 4, damping device.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Apparently, the accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
As shown in Figure 1, this kind of throw-in type deviational survey seat that the utility model provides, is characterized in that: comprise deviational survey seat 1, the main cylinder 3 welded with deviational survey seat 1; Described main cylinder 3 is column structure;
Described main cylinder 3 main body is provided with cross through hole 5; Arrange in described cross through hole 5 and be provided with righting rod 2, described main cylinder 3 also comprises the damping device 4 with the screwed connection of main cylinder 3.
Specifically, wherein deviational survey seat adopts size to be less than drilling tool minimum diameter; Main cylinder external diameter is less than the body hydrophthalmia of PDC drill bit; Damping device mainly reduce throw-in type deviational survey seat on earth time impact force and inclinometer on earth to the impact force of deviational survey seat; Righting rod makes throw-in type deviational survey seat body centred, ensure that deviational survey effect.
The quantity of described through hole 5 is two or more.
Described through hole 5 is longitudinal same longitudinal arrangement on main cylinder 3 cylinder.
Cross through hole 5 is vertical arranged in co-axial alignment on main cylinder 3, and the number of such righting rod can increase as required, thus better maintains deviational survey seat body centred, ensures deviational survey effect.
Wherein, as a kind of method for optimizing of the present utility model, the cylindrical structure that in the middle of described righting rod 2, thick two is thin, its maximum gauge is identical with through-hole diameter.
Described righting rod 2 is quality of rubber materials.
Specifically, the effect of righting rod 2 makes throw-in type deviational survey seat body centred, ensures deviational survey effect.
The reason of selection quality of rubber materials is rubber is soft distortion material, thus can easy operation insert in cross through hole, and save the operating time, simplify the operation step.
As another kind of method for optimizing of the present utility model, described damping device 4 is spirality steel spring.
Damping device mainly reduce throw-in type deviational survey seat on earth time impact force and inclinometer on earth to the impact force of deviational survey seat, thus protection deviational survey seat.
The above, be only some embodiments of the present utility model, and protection domain of the present utility model is not limited thereto.
Claims (6)
1. a throw-in type deviational survey seat, is characterized in that: comprise deviational survey seat (1), the main cylinder (3) welded with deviational survey seat (1); Described main cylinder (3) is column structure; Described main cylinder (3) cylinder is provided with cross through hole (5); Arrange in described cross through hole (5) and righting rod (2) is installed; Described main cylinder (3) also comprises the damping device (4) with main cylinder (3) screwed connection.
2. a kind of throw-in type deviational survey seat according to claim 1, is characterized in that: the quantity of described cross through hole (5) is two or more.
3. a kind of throw-in type deviational survey seat according to claim 1, is characterized in that: described cross through hole (5) is longitudinal same longitudinal arrangement on main cylinder (3) cylinder.
4. a kind of throw-in type deviational survey seat according to claim 1, is characterized in that: described damping device (4) is spirality steel spring.
5. a kind of throw-in type deviational survey seat according to claim 1, is characterized in that: described righting rod (2) is the middle cylindrical structure that slightly two is thin, and its maximum gauge is identical with through-hole diameter.
6. a kind of throw-in type deviational survey seat according to claim 1, is characterized in that: described righting rod (2) is quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268132.2U CN204571970U (en) | 2015-04-29 | 2015-04-29 | A kind of throw-in type deviational survey seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268132.2U CN204571970U (en) | 2015-04-29 | 2015-04-29 | A kind of throw-in type deviational survey seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204571970U true CN204571970U (en) | 2015-08-19 |
Family
ID=53864624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520268132.2U Expired - Fee Related CN204571970U (en) | 2015-04-29 | 2015-04-29 | A kind of throw-in type deviational survey seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204571970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145157A (en) * | 2020-09-07 | 2020-12-29 | 中海油田服务股份有限公司 | Bearing device for bearing inclinometer |
-
2015
- 2015-04-29 CN CN201520268132.2U patent/CN204571970U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145157A (en) * | 2020-09-07 | 2020-12-29 | 中海油田服务股份有限公司 | Bearing device for bearing inclinometer |
| CN112145157B (en) * | 2020-09-07 | 2023-03-14 | 中海油田服务股份有限公司 | Bearing device for bearing inclinometer |
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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: 20150819 Termination date: 20170429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |