CN201747315U - One-stage double hung type casing head - Google Patents
One-stage double hung type casing head Download PDFInfo
- Publication number
- CN201747315U CN201747315U CN2010202778132U CN201020277813U CN201747315U CN 201747315 U CN201747315 U CN 201747315U CN 2010202778132 U CN2010202778132 U CN 2010202778132U CN 201020277813 U CN201020277813 U CN 201020277813U CN 201747315 U CN201747315 U CN 201747315U
- Authority
- CN
- China
- Prior art keywords
- casing head
- hanger
- head body
- casing
- flange
- 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
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 7
- 238000005553 drilling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a one-stage double hung type casing head which comprises a casing head body (8), a core shaft hanger (9), a slip hanger (7), two intermediate casing hanger screw sets (6), and four oil casing screw sets (10), wherein the core shaft hanger (9) is positioned on the inner wall of the casing head body (8), the slip hanger (7) is positioned on the inner wall of the core shaft hanger (9), the two intermediate casing hanger screw sets (6) are supported on the upper chamfer of the core shaft hanger (9) and symmetrically positioned at the lower edge of the outer circle of a flange (11) of the casing head body (8), and the four oil casing screw sets (10) are supported on the outer chamfer of the slip hanger (7) and symmetrically positioned at the upper edge of the outer circle of the flange (11) of the casing head body (8). The first-stage double hung type casing head adopts the one-stage single hung mode with single-stage use in the normal condition, and adopts the one-stage double hung mode with double-stage use in the complex condition that the intermediate casing is needed to be dismounted. The first-stage double hung type casing head has the advantages of convenience for installation, firm connection and low cost.
Description
Technical field
The utility model relates to the casing head that is used in oil well, is specifically related to a kind of one-level dual-hooking casing head.
Background technology
As everyone knows, in the well-digging process,, need protective casing down as finding the earth formation complexity.During following protective casing, adopt the casing head mode of changing at present, be about to the individual layer casing head and be changed to two formula casing heads, this kind substitute mode labour intensity is big, the time is long, expense is high.
Summary of the invention
The purpose of this utility model is: a kind of one-level dual-hooking casing head is provided, adopts the single extension of one-level when using usually, make single-stage and use, as complex situations, when needs descend protective casing, hang but one-level is two, make twin-stage and use, easy for installation, connect firm, with low cost.
Technical solution of the present utility model is: this casing head comprises casing head body, mandrel hanger, slips hanger, skill cover jackscrew group and oil jacket jackscrew group, the mandrel hanger is positioned at the inwall of casing head body, slips hanger is positioned at the inwall of mandrel hanger, skill cover jackscrew group withstands on the last chamfering of mandrel hanger, be positioned on the cylindrical of flange of casing head body limit on the lower side, oil jacket jackscrew group withstands on the outer chamfering of slips hanger, is positioned on the cylindrical of flange of casing head body limit on the upper side.
Wherein, the bottom endoporus of casing head body has the sleeve pipe screw thread, directly links to each other with surface pipe.
Wherein, the gasket ring groove is established in the junction of flange at the bottom of casing head upper part of body and the production tree four-way, puts into gasket ring in the gasket ring groove, and the casing head body connects the end flange of production tree four-way through bolt and nut.
The utlity model has following advantage: 1, structure uniqueness, easy for installation, expense is cheap, shortens drilling period, reduces labour intensity, is the most desirable reliable product of bad ground drilling well exploitation; 2, individual layer or the double-deck influence that is not subjected to height do not need to change the casing head body, have improved operating efficiency; Adopt the single extension of one-level when 3, using usually, make single-stage and use; As complex situations, when needing down protective casing, hang but one-level is two, make twin-stage and use, connect firmly.
Description of drawings
Fig. 1 is the utility model structural representation
Among the figure: 1. surface pipe, 2. production string, 3. pair public affairs 4. blocking caps, 5. flap type, 6. skill cover jackscrew group, 7. slips hanger, 8. casing head body, 9. mandrel hanger, 10. oil jacket jackscrew group, 11. flanges, 12. plug valves, 13 protective casings.
The specific embodiment
As shown in Figure 1, this casing head comprises casing head body 8, mandrel hanger 9, slips hanger 7, skill cover jackscrew group 6 and oil jacket jackscrew group 10, mandrel hanger 9 is positioned at the inwall of casing head body 8, slips hanger 7 is positioned at the inwall of mandrel hanger 9, two skill cover jackscrew groups 6 withstand on the last chamfering of mandrel hanger 9, symmetry is positioned at the cylindrical bottom of the flange 11 of casing head body 8, four oil jacket jackscrew groups 10 withstand on the outer chamfering of slips hanger 7, and symmetry is positioned at the cylindrical top of the flange 11 of casing head housing 8.
Wherein, casing head body 8 bottom endoporus have the sleeve pipe screw thread, directly link to each other with surface pipe 1.
Wherein, the gasket ring groove is established in the junction of the end flange of the top of casing head body 8 and production tree four-way, puts into gasket ring in the gasket ring groove, and casing head body 8 connects the end flange of production tree four-way through bolt and nut.
Installation procedure of the present utility model is as follows: when running into underground complex situations in the drilling process and need descend protective casing 13, mandrel hanger 9 is linked to each other with last root protective casing 13, send seat to put in place by the first-class button of standard torque, care should be used to is transferred during mandrel hanger 9 process preventers, guarantee that sealing ring is excellent, after the seat envelope puts in place, hold out against the skill cover jackscrew group 6 of following two symmetries of flange 11 cylindricals, open the blocking cap 4 and the plug valve 12 of casing head body 8 both sides bottoms, cement the well, circulate, wait and coagulate; When three open end after, be lowered to production string 2 to the precalculated position, open the flap type 5 and the flange 11 of both sides, casing head body 8 top, cement the well, circulate, wait and coagulate; Remove the bolt and nut between casing head body 8 and the alternative four-way, on watch out for the spray apparatus group, slips hanger 7 is seated on mandrel hanger 9 inwalls, on carry production string 2 and make it produce super expansive force, when slowly transferring production string 2, four oil jacket jackscrews 10 in cylindrical top with the flange 11 of casing head body 8 evenly withstand on the slips hanger 7 again, until the safety locking of finishing production string 2; Shed landing joint, cut off at the above 140mm of distance Flange Plane place, the gasket ring groove of cleaning sleeve tube head body 8 is put into gasket ring, connects the end flange of production tree four-way with bolt and nut.
Claims (3)
1. one-level dual-hooking casing head, it is characterized in that: this casing head comprises casing head body (8), mandrel hanger (9), slips hanger (7), skill cover jackscrew group (6) and oil jacket jackscrew group (10), mandrel hanger (9) is positioned at the inwall of casing head body (8), slips hanger (7) is positioned at the inwall of mandrel hanger (9), two skill cover jackscrew groups (6) withstand on the last chamfering of mandrel hanger (9), symmetry is positioned at the cylindrical bottom of the flange (11) of casing head body (8), four oil jacket jackscrew groups (10) withstand on the outer chamfering of slips hanger (7), and symmetry is positioned at the cylindrical top of the flange (11) of casing head body (8).
2. one-level dual-hooking casing head according to claim 1 is characterized in that: wherein, casing head body (8) bottom endoporus has the sleeve pipe screw thread, directly links to each other with surface pipe (1).
3. one-level dual-hooking casing head according to claim 1, it is characterized in that: wherein, the gasket ring groove is established in the junction of the top of casing head body (8) and the end flange of production tree four-way, puts into gasket ring in the gasket ring groove, and casing head body (8) connects the end flange of production tree four-way through bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202778132U CN201747315U (en) | 2010-07-30 | 2010-07-30 | One-stage double hung type casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202778132U CN201747315U (en) | 2010-07-30 | 2010-07-30 | One-stage double hung type casing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747315U true CN201747315U (en) | 2011-02-16 |
Family
ID=43581998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202778132U Expired - Lifetime CN201747315U (en) | 2010-07-30 | 2010-07-30 | One-stage double hung type casing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470203A (en) * | 2013-08-20 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Velocity string hanger of coiled tubing and hanging method thereof |
| CN114876399A (en) * | 2022-06-02 | 2022-08-09 | 盐城宝通机械科技有限公司 | Dabber formula casing hanger convenient to maintain |
-
2010
- 2010-07-30 CN CN2010202778132U patent/CN201747315U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470203A (en) * | 2013-08-20 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Velocity string hanger of coiled tubing and hanging method thereof |
| CN114876399A (en) * | 2022-06-02 | 2022-08-09 | 盐城宝通机械科技有限公司 | Dabber formula casing hanger convenient to maintain |
| CN114876399B (en) * | 2022-06-02 | 2024-05-14 | 盐城宝通机械科技有限公司 | Dabber formula sleeve pipe hanger convenient to maintain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104213868B (en) | Desirable bore anchor packer | |
| CN104989314B (en) | Mud line production tree and its installation method under water | |
| CN102953698B (en) | A kind of expansion-type rotatable tail pipe hanger | |
| CN201486515U (en) | Switch type releasing packer | |
| CN203285384U (en) | Top packer for preventing sand | |
| CN202108460U (en) | Wellhead device used for ocean deep water well drilling | |
| CN103485744B (en) | Directional well seperated layer water injection righting type packer | |
| CN201747315U (en) | One-stage double hung type casing head | |
| CN204175233U (en) | Desirablely bore anchor packer | |
| CN102797429A (en) | Suspending releasing sand preventing completion packer | |
| CN202531096U (en) | Wall-hook packer for horizontal well fracturing | |
| CN103015939A (en) | Protective device for thermal recovery well mouth | |
| CN201443351U (en) | Novel packer | |
| CN203374235U (en) | Velocity string well mouth sealing and hanging device | |
| CN105370241A (en) | Packing device and method during drilling for abandoning well | |
| CN201924865U (en) | Slip type casing head sealing device | |
| CN207660583U (en) | The anti-Integral casing head that builds the pressure | |
| CN104989320B (en) | Chute type sub-releasing axle plug | |
| CN201568000U (en) | Integral-type platform oil producing wellhead device | |
| CN115929246A (en) | Integral double-barrelled well head and production tree device | |
| CN202745798U (en) | Layered water injection centering packer of directional well | |
| CN207437022U (en) | A kind of electric submersible pump mining device for adapting to coiled tubing completion | |
| CN205382914U (en) | But packing sand control is with on -off control valve | |
| CN214464009U (en) | Tail pipe tie-back sealing tool | |
| CN201448073U (en) | Self-dragging resisting slip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AINIWA'ER MAIMAITI |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110621 Address after: 211600, Huaian County, Jiangsu province Jinhu Dai industrial concentrated area Jinhu Xianghe Petroleum Machinery Co., Ltd. Co-patentee after: Ainiwaer.Maimaiti Patentee after: Wang Shouming Address before: 211600, Huaian County, Jiangsu province Jinhu Dai industrial concentrated area Jinhu Xianghe Petroleum Machinery Co., Ltd. Patentee before: Wang Shouming |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |