CN201661263U - Thermal production mandrel type bushing head - Google Patents
Thermal production mandrel type bushing head Download PDFInfo
- Publication number
- CN201661263U CN201661263U CN2010201750765U CN201020175076U CN201661263U CN 201661263 U CN201661263 U CN 201661263U CN 2010201750765 U CN2010201750765 U CN 2010201750765U CN 201020175076 U CN201020175076 U CN 201020175076U CN 201661263 U CN201661263 U CN 201661263U
- Authority
- CN
- China
- Prior art keywords
- casing head
- bushing head
- mandrel hanger
- upper flange
- head housing
- 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
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Abstract
The utility model discloses a thermal production mandrel type bushing head which includes a bushing head shell (11), a mandrel hanger (8) and an upper flange (2); the outer wall of the mandrel hanger (8) is respectively provided with a sealing ring (3, 7); the mandrel hanger (8) is arranged on the inner wall of the bushing head shell (11) through a pressing nut (6); the upper side of the bushing head shell (11) is connected with the upper flange (2) through a screw (4) to form the whole bushing head. The assembling structure of the thermal production mandrel type bushing head has the advantages of simple structure, low cost, convenient installation, good sealing performance and short installation time.
Description
Technical field
The utility model relates to the casing head that is used in oil well, is specifically related to a kind of thermal recovery core shaft type casing head.
Background technology
As everyone knows, present casing head complex structure is installed extremely inconvenience, and sealing effectiveness is poor, causes casing head shortening in application life, the cost of production height.
Summary of the invention
The purpose of this utility model is: a kind of thermal recovery core shaft type casing head is provided, and simple in structure, with low cost, easy for installation, good sealing effect, long service life.
Technical solution of the present utility model is: this casing head comprises casing head housing, mandrel hanger and upper flange, outer wall at the mandrel hanger is installed sealing ring up and down respectively, the mandrel hanger is installed on the inwall of casing head housing by pressure cap, the top of casing head housing connects upper flange by screw rod, whole forming sleeves head.
Wherein, establish two public affairs on the casing head housing, two Gongshang install blocking cap.
Wherein, at the contact surface of casing head housing and upper flange gasket ring is installed.
The installation procedure of this casing head is as follows: when drilling team during down to a last protective casing, directly be connected on the protective casing mandrel hanger, the casing head housing is installed on the surface pipe by following pin thread, connect epimerite with sleeve pipe the mandrel hanger is sent into the casing head housing, the automatic sealed expansion of " O " RunddichtringO plays sealing function in the inwall; After well cementing operation finished, well location left in drilling team, and well on the installation personnel screws pressure cap, and the effect of pressure cap can not be risen after protective casing, mandrel hanger are heated; Tighten screw rod and connect upper flange and casing head housing, make the gasket ring sealing; Upper flange is connected the end flange of production tree four-way with studding by the studding hole.
The utlity model has following advantage: 1, casing head modular construction, simple in structure, with low cost, easy for installation, good airproof performance, the set-up time is short; 2, the direct link technique sleeve pipe of mandrel hanger does not need to cut protective casing and solder technology sleeve pipe, and construction is simple, the safety factor height; 3, pressure cap is installed in and pushes down the mandrel hanger on the casing head inner walls, connects firmly, and workmanship is stable.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1 studding, 2 upper flanges, 3 sealing rings, 4 screw rods, 5 gasket rings, 6 pressure caps, 7 sealing rings, 8 mandrel hangers, 9 pairs of public affairs, 10 blocking caps, 11 casing head housings.
The specific embodiment
As shown in Figure 1, this casing head comprises casing head housing 11, mandrel hanger 8 and upper flange 2, outer wall at mandrel hanger 8 is installed sealing ring 3,7 up and down respectively, mandrel hanger 8 is installed on the inwall of casing head housing 11 by pressure cap 6, the top of casing head housing 11 connects upper flange 2, whole forming sleeves head by screw rod 4.
Wherein, on casing head housing 11, establish installation blocking cap 10 on two public 9, two public 9.
Wherein, at the casing head housing 11 and the contact surface of upper flange 2 gasket ring 5 is installed.
The installation procedure of this casing head is as follows: when drilling team during down to a last protective casing, directly be connected on the protective casing mandrel hanger 8, casing head housing 11 is installed on the surface pipe by following pin thread, connecting epimerite with sleeve pipe sends into mandrel hanger 8 in casing head housing 11 inwalls, " O " RunddichtringO 3,7 is squeezed and expands automatically, plays sealing function; After well cementing operation finished, well location left in drilling team, and well on the installation personnel screws pressure cap 6, and the effect of pressure cap 6 can not be risen after protective casing, mandrel hanger 8 are heated; Tighten screw rod 4 and connect upper flange 2 and casing head housing 11, make gasket ring 5 sealings; Upper flange 2 is connected the end flange of production tree four-way with studding 1 by the studding hole.
Claims (4)
1. thermal recovery core shaft type casing head, it is characterized in that: this casing head comprises casing head housing (11), mandrel hanger (8) and upper flange (2), at the outer wall of mandrel hanger (8) sealing ring (3,7) is installed respectively up and down, mandrel hanger (8) is installed on the inwall of casing head housing (11) by pressure cap (6), the top of casing head housing (11) connects upper flange (2), whole forming sleeves head by screw rod (4).
2. thermal recovery core shaft type casing head according to claim 1 is characterized in that: wherein, establish two public (9) on casing head housing (11), two public affairs (9) go up installs blocking cap (10).
3. thermal recovery core shaft type casing head according to claim 1 is characterized in that: wherein, at the casing head housing (11) and the contact surface of upper flange (2) gasket ring (5) is installed.
4. thermal recovery core shaft type casing head according to claim 1 is characterized in that: wherein pressure cap (6) is installed on casing head housing (11) inwall and pushes down mandrel hanger (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201750765U CN201661263U (en) | 2010-04-30 | 2010-04-30 | Thermal production mandrel type bushing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201750765U CN201661263U (en) | 2010-04-30 | 2010-04-30 | Thermal production mandrel type bushing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661263U true CN201661263U (en) | 2010-12-01 |
Family
ID=43231678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201750765U Expired - Lifetime CN201661263U (en) | 2010-04-30 | 2010-04-30 | Thermal production mandrel type bushing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061908A (en) * | 2017-06-01 | 2017-08-18 | 曾广新 | External circular type attachment structure and pipe-line system |
-
2010
- 2010-04-30 CN CN2010201750765U patent/CN201661263U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061908A (en) * | 2017-06-01 | 2017-08-18 | 曾广新 | External circular type attachment structure and pipe-line system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |