CN2763503Y - Wet joint assembly of hole logging - Google Patents
Wet joint assembly of hole logging Download PDFInfo
- Publication number
- CN2763503Y CN2763503Y CNU200420115261XU CN200420115261U CN2763503Y CN 2763503 Y CN2763503 Y CN 2763503Y CN U200420115261X U CNU200420115261X U CN U200420115261XU CN 200420115261 U CN200420115261 U CN 200420115261U CN 2763503 Y CN2763503 Y CN 2763503Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- transition segment
- joint assembly
- wet joint
- utility
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a wet joint assembly for well logging for petroleum exploitation, particularly a wet joint assembly for well logging for the welllogging operation of a large-displacement large-slope well. The utility model has the purposes of overcoming the insufficiency of the easy wear of a centralizer and the easy blockage of a drilling fluid circulating hole. The utility model comprises a quick joint (1), a centralizer (3), a male needle (4), a filter screen (5) and a transition segment (6), wherein the centralizer (3) is made of steel, and flow guiding grooves (9) are uniformly distributed on the external circumference of the centralizer (3) in an axial direction; the length of a quick joint rod body (8) of the quick joint (1) is lengthened by 15 to 25 cm, and correspondingly, the length of the transition segment rod body (7) of the corresponding transition segment (6) is lengthened by 15 to 25 cm; a circulating hole on the transition segment (6) is in a dumbbell shape. The utility model has the effects that the abrasive resistance of the centralizer is improved, the flow property of drilling fluid is improved, the silt accumulation and the damage to the male needle are prevented, and the centering performance of the wet joint assembly is ensured.
Description
Technical field
The utility model relates to a kind of oil development well logging wet joint assembly, particularly relates to the well logging wet joint assembly that a kind of big displacement, high-angle borehole logging operation are used.
Background technology
Along with the development of drilling engineering technology, big displacement, high angle hole technology are used more and more, because the hole angle of big displacement, high angle hole is big, make the silt in the pit shaft be difficult for discharging.In the logging operation of big displacement, high angle hole, by drilling tool logger is sent into the down-hole, bring the down-hole with the public pin that female pin in the pump lower contact connects into by the snap joint in the wet joint.Centralizer material in the existing wet joint assembly on the transition segment is a rubber, and the rubber quality is soft, is easy to wearing and tearing with borehole wall low side contact site, is difficult to guarantee that the wet joint assembly is placed in the middle, causes mother in public pin and the pump lower contact at connecing difficulty.The groove because the centralizer of rubber quality does not flow backwards, drilling fluid can only be in the internal flow of wet joint assembly, the body of rod of snap joint is shorter, the distance short (having only 25cm usually) of the public pin of the circulation of drilling fluid pitch-row on the transition segment, the circulation of drilling fluid hole is oval type, silt in the pit shaft is easy to retain in transition segment, causes transition segment inside to be blocked by silt, can't realize public pin and mother at connecing; When the circulation of drilling fluid hole is blocked, under the high pressure effect, silt flows to circulation port rapidly, is easy to public stylus printer badly, and logging operation can't be carried out.
The utility model content
The utility model well logging wet joint assembly is in order to overcome the deficiency that centralizer is easy to wear, the circulation of drilling fluid pore volume easily is blocked, provide that a kind of centralizer is not easy to wear, the circulation of drilling fluid hole is unobstructed, can guarantee in big displacement, high-angle borehole logging operation, to finish public pin mother smoothly at the well logging wet joint assembly that connects.
In order to achieve the above object, the utility model well logging wet joint assembly comprises snap joint, centralizer, public pin, filter screen, transition segment, and centralizer is a steel, is evenly equipped with guiding gutter on the centralizer excircle vertically; The snap joint body of rod length of snap joint lengthening 15～25cm, the transition segment body of rod length of the corresponding transition segment 15～25cm that also extends; Circulation port on the transition segment is a dumbbell shape.
The beneficial effect of well logging wet joint assembly of the present utility model is that the centralizer of steel has improved its abrasion resistance, has guaranteed the property placed in the middle of wet joint assembly; Uniform guiding gutter provides the drilling fluid channel that flows on the centralizer excircle; Extend distance between public pin and the circulation port has been improved the mobile performance of drilling fluid, and it is unobstructed that drilling fluid is flowed, and effectively prevents silting, prevents that public pin from damaging.
Description of drawings
Fig. 1 is the utility model well logging wet joint assembly structure schematic diagram.
Fig. 2 is a centralizer sectional drawing in the utility model well logging wet joint assembly.
Among the figure: 1. snap joint, 2. circulation port, 3. centralizer, 4. public pin, 5. filter screen, 6. transition segment, 7. the transition segment body of rod, 8. the snap joint body of rod, 9. guiding gutter.
The specific embodiment
With reference to accompanying drawing.The utility model well logging wet joint assembly comprises snap joint 1, centralizer 3, public pin 4, filter screen 5, transition segment 6.
Centralizer 3 is made for steel, is evenly equipped with guiding gutter 9 on its excircle vertically, and quantity is 6～8, and making the external form of centralizer is Lantern, is convenient to silt and passes through smoothly; Circulation port 2 on the transition segment 6 changes dumb-bell shape into by Long Circle, has dwindled the area of passage of circulation port 2, prevents from or reduce silt to enter between snap joint 1 and the transition segment 6, prevents silting.
The snap joint body of rod 8 length lengthening 15～25cm of snap joint 1, the transition segment body of rod 7 length of the corresponding transition segment 6 15～25cm that also extends, best extension length is 20cm, increases the distance between public pin 4 and the circulation port 2, and the angle between public pin 4 and the circulation port 2 diminishes.When drilling fluid flowed, drilling fluid flowed near vertical to circulation port 2 from public pin 4, and the side direction of public pin 4 is not stressed substantially, avoided public pin 4 to damage, and guaranteed carrying out smoothly of logging operation.
For easy to assembly, centralizer 3 radially can be processed as two semicircular body, be connected to become integral body with bolt, be convenient to assembling and replacing.
Claims (4)
1. a well logging wet joint assembly comprises snap joint, centralizer, public pin, filter screen, transition segment, and it is characterized in that: centralizer (3) is a steel, is evenly equipped with guiding gutter (9) on centralizer (3) excircle vertically; The snap joint body of rod (8) the length lengthening 15～25cm of snap joint (1), the transition segment body of rod (7) the length lengthening 15～25cm of corresponding transition segment (6); Circulation port (2) on the transition segment (6) is a dumbbell shape.
2. well logging wet joint assembly according to claim 1 is characterized in that: the described snap joint body of rod (8) length lengthening 20cm, the corresponding transition segment body of rod (7) length lengthening 20cm.
3. well logging wet joint assembly according to claim 2 is characterized in that: guiding gutter (9) quantity uniform vertically on described centralizer (3) excircle is 6～8.
4. well logging wet joint assembly according to claim 3 is characterized in that: described centralizer (3) radially is two semicircular body, is connected to become integral body with bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200420115261XU CN2763503Y (en) | 2004-11-26 | 2004-11-26 | Wet joint assembly of hole logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200420115261XU CN2763503Y (en) | 2004-11-26 | 2004-11-26 | Wet joint assembly of hole logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763503Y true CN2763503Y (en) | 2006-03-08 |
Family
ID=36141049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200420115261XU Expired - Lifetime CN2763503Y (en) | 2004-11-26 | 2004-11-26 | Wet joint assembly of hole logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763503Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541678A (en) * | 2019-07-02 | 2019-12-06 | 山东滨州胜滨石油仪器制造有限公司 | Horizontal well wet joint butting tool and method |
-
2004
- 2004-11-26 CN CNU200420115261XU patent/CN2763503Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541678A (en) * | 2019-07-02 | 2019-12-06 | 山东滨州胜滨石油仪器制造有限公司 | Horizontal well wet joint butting tool and method |
| CN110541678B (en) * | 2019-07-02 | 2021-05-18 | 山东滨州胜滨石油仪器制造有限公司 | Horizontal well wet joint butting tool and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110219611B (en) | Coal mine underground horizontal drilling core drill tool combination and use method thereof | |
| CN201747329U (en) | Sand cleaning tool of large-inclination and large-well diameter absorption well | |
| CN204113131U (en) | A kind of coal bed gas well screw pump tubing string | |
| CN2811547Y (en) | Double-pipe bidirectional leather-cup leakproof sand washing string in oil production | |
| CN207728393U (en) | The casing programme of chamber is made for salt hole air reserved storeroom | |
| CN2763503Y (en) | Wet joint assembly of hole logging | |
| CN206409195U (en) | A kind of novel oil production tubing string | |
| CN2846711Y (en) | Low wear resistance centralizer for horizontal directional drilling well | |
| CN200949445Y (en) | Plugging packer for small borehole oil-gas water well | |
| CN201106429Y (en) | Apparatus for pumping sand in oil field down-hole | |
| CN201391235Y (en) | Asymmetric special-section drill rod | |
| CN211314181U (en) | Open hole segmented acid fracturing easy drilling and grinding well completion production string | |
| CN209430129U (en) | A kind of dedicated throttling of casing job is anti-down to return rotary guide shoe | |
| CN203685078U (en) | Rotary drilling-type sand removal tip | |
| CN201705301U (en) | Deep well oil production outer runner positive and negative circulation free shot jet pump oil production device | |
| CN204920775U (en) | Jumbo size well is with anti - circulating air hammer hammer block structure | |
| CN201180486Y (en) | Stabilizer used for slim-hole well drilling | |
| CN206309593U (en) | Screw pump-driving rod and screw pump system | |
| CN204782846U (en) | Hydraulic boost motor in pit | |
| CN209654016U (en) | A kind of watered-out well water drainage-gas recovery technology tubing string | |
| CN205000910U (en) | But nearly drill bit righting device of reducing | |
| CN215927357U (en) | Carbon dioxide fracturing sand-carrying reinforcing device system | |
| CN215256108U (en) | High-efficient anti-intraductal bailing instrument that circulates | |
| CN214787165U (en) | Positive pressure reverse circulation method pore-forming device | |
| CN215979242U (en) | Diameter-variable stabilizer for drilling construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141126 Granted publication date: 20060308 |