CN205477368U - Case auxiliary device - Google Patents
Case auxiliary device Download PDFInfo
- Publication number
- CN205477368U CN205477368U CN201620235989.9U CN201620235989U CN205477368U CN 205477368 U CN205477368 U CN 205477368U CN 201620235989 U CN201620235989 U CN 201620235989U CN 205477368 U CN205477368 U CN 205477368U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- sleeve pipe
- sleeve
- ring
- casing
- 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 - Fee Related
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Abstract
The utility model provides a case auxiliary device. It is stuck out and is constituteed by profile, wedge -type seal ring, outer loop cover, screwed joint, sleeve pipe, spherical salient, circumference spherical groove, hemisphere in insertible joint, inner ring cover outline, clamping ring groove, the inner ring cover, the utility model discloses a rubbing the angle that hinders and starting with from reducing sleeve pipe and the wall of a well, reduce the degree of difficulty of case, it hinders to prevent that the cutting ferrule pipe from meeting with the case, shortens drilling period, realizes safe well drilling fast. The device simple structure of design, the good reliability, workable, easy installation is applicable to conventional casing string.
Description
Technical field
This utility model relates to entering technical field under a kind of extended reach well lower curved section and horizontal segment sleeve pipe, particularly to a kind of setting of casing auxiliary device.
Background technology
In Oil-Gas Well Engineering, casing and cementing is broadly divided into setting of casing and two links of cementing, and wherein during setting of casing, incident card sleeve pipe and setting of casing are hampered.Card sleeve pipe can divide viscous suction card sleeve pipe, hole shrinkage card sleeve pipe, three kinds of main Types of borehole collapse card sleeve pipe.Wherein viscous card sleeve pipe of inhaling occurs the most universal, and especially in the complex structural wells such as Short Radius Horizontal Wells, extended reach well, multilateral well, viscous card sleeve pipe of inhaling is more easy to occur.
Casing string stress when by extended reach well lower curved section and horizontal segment is more complicated, it may appear that some problems that can not run in straight well section.During well bending, casing string is close to the lower borehole wall, cannot enter down owing to rigid casing ambassador's casing string is stuck in the bending section of well.After entering horizontal segment, casing string is attached on the lower borehole wall completely, and owing to casing string is the longest with the contact-segment on stratum, stratum is very big to the frictional resistance of casing string, makes setting of casing be hampered.
Entering difficulty, card sleeve pipe for extended reach well lower curved section in above oil gas well cementing operation and horizontal segment setting of casing under being faced, setting of casing such as is hampered at the down hole problem, and a kind of setting of casing auxiliary device of design solves the engineering problem of this reality.
Summary of the invention
This device to solve the technical problem that and to be to provide a kind of setting of casing auxiliary device, the frictional resistance between the borehole wall and sleeve pipe is reduced during the arrangement achieves setting of casing, reduce cased difficulty, prevent extended reach well lower curved section and horizontal segment setting of casing in oil gas well cementing operation under being faced, entering difficulty, card sleeve pipe, setting of casing such as is hampered at the down hole problem, shortens drilling period, it is achieved drilling well safely and fast.
The technical solution of the utility model is: a kind of setting of casing auxiliary device, it by can embed joint, inner ring sleeve outline, pressure ring groove, inner ring sleeve Internal periphery, wedge shape sealing ring, exterior ring cap, nipple, sleeve pipe, spherical prominent, circumference spherical groove, hemisphere are prominent forms.Inner ring sleeve outline is connected by embedding joint with sleeve pipe, and inner ring sleeve outline inner surface is provided with pressure ring groove, and inner ring sleeve outline bottom and exterior ring cap are sealed by wedge shape sealing ring.Sleeve pipe two ends have nipple.Have multiple spherical prominent on exterior ring cap.Inner ring sleeve Internal periphery outer surface is provided with circumference spherical groove.Hemisphere is prominent is positioned at exterior ring cap outer wall.
The beneficial effects of the utility model are: the setting of casing auxiliary device of design, solve extended reach well lower curved section and horizontal segment setting of casing in current oil gas well cementing and enter difficulty under being faced, card sleeve pipe, setting of casing such as is hampered at the down hole problem, the apparatus structure of design is simple, highly reliable, easily processes, easily install, it is adaptable to conventional casing string structure.
Accompanying drawing explanation
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is part-structure generalized section of the present utility model.
Fig. 3 is exterior ring cap structural representation.
Fig. 4 is inner ring sleeve outline structural representation.
Fig. 5 is inner ring sleeve Internal periphery structural representation.
Fig. 6 is wedge shape sealing ring generalized section.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6,1. can embed joint, 2. inner ring sleeve outline, 3. pressure ring groove, 4. inner ring sleeve Internal periphery, 5. wedge shape sealing ring, 6. exterior ring cap, 7. nipple, 8. sleeve pipe, the most spherical prominent, 10. circumference spherical groove, 11. hemisphere highlight.
Detailed description of the invention
The circumference spherical groove (10) that inner ring sleeve Internal periphery (4) and exterior ring cap (6) embed inner ring sleeve Internal periphery (4) by exterior ring cap (6) upper spherical prominent (9) forms circumference slidable connection system, casing string is when by horizontal well lower curved section and horizontal segment, owing to sleeve pipe (8) rigidity is excessive, sleeve pipe (8) is easily attached to the lower borehole wall, increase the stratum frictional resistance to sleeve pipe (8), simultaneously under sleeve pipe (8) self gravitation effect, exterior ring cap (6) surface creates shearing stress, spherical prominent (9) rotate against around inner ring sleeve Internal periphery (4) circumference spherical groove (10) is inner, hemisphere prominent (11) the contact borehole wall reduces frictional resistance, avoid card sleeve pipe (8), setting of casing (8) such as is hampered at the down hole problem.
During setting of casing (8), the associating space of inner ring sleeve outline (2) and exterior ring cap (6) is provided with wedge shape sealing ring (5) and prevents fluid from invading.Inner ring sleeve outline (2) is connected fixing with sleeve pipe (8) by embedding joint (1), sleeve pipe (8) is connected by nipple (7) with inner ring sleeve Internal periphery (4), inner ring sleeve outline (2) upper press ring groove (3) contacts with inner ring sleeve Internal periphery (4), is formed and seals.
Claims (1)
1. a setting of casing auxiliary device, it by can embed joint, inner ring sleeve outline, pressure ring groove, inner ring sleeve Internal periphery, wedge shape sealing ring, exterior ring cap, nipple, sleeve pipe, spherical prominent, circumference spherical groove, hemisphere are prominent forms, it is characterized in that, described inner ring sleeve outline is connected by embedding joint with sleeve pipe, inner ring sleeve outline inner surface is provided with pressure ring groove, and inner ring sleeve outline bottom and exterior ring cap are sealed by wedge shape sealing ring；Described sleeve pipe two ends have nipple；Have multiple spherical prominent on described exterior ring cap；Described inner ring sleeve Internal periphery outer surface is provided with circumference spherical groove；Described hemisphere is prominent is positioned at exterior ring cap outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620235989.9U CN205477368U (en) | 2016-03-25 | 2016-03-25 | Case auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620235989.9U CN205477368U (en) | 2016-03-25 | 2016-03-25 | Case auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477368U true CN205477368U (en) | 2016-08-17 |
Family
ID=56652742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620235989.9U Expired - Fee Related CN205477368U (en) | 2016-03-25 | 2016-03-25 | Case auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386980A (en) * | 2017-07-18 | 2017-11-24 | 中国石油天然气集团公司 | Aid in the device of sleeve pipe tripping in |
| CN112943098A (en) * | 2021-04-22 | 2021-06-11 | 成都理工大学 | Auxiliary running device for hydraulic support type tubular column |
-
2016
- 2016-03-25 CN CN201620235989.9U patent/CN205477368U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386980A (en) * | 2017-07-18 | 2017-11-24 | 中国石油天然气集团公司 | Aid in the device of sleeve pipe tripping in |
| CN107386980B (en) * | 2017-07-18 | 2023-09-26 | 中国石油天然气集团公司 | Device for assisting in casing running |
| CN112943098A (en) * | 2021-04-22 | 2021-06-11 | 成都理工大学 | Auxiliary running device for hydraulic support type tubular column |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170325 |