CN200961463Y - Simple casing head - Google Patents
Simple casing head Download PDFInfo
- Publication number
- CN200961463Y CN200961463Y CN 200620093561 CN200620093561U CN200961463Y CN 200961463 Y CN200961463 Y CN 200961463Y CN 200620093561 CN200620093561 CN 200620093561 CN 200620093561 U CN200620093561 U CN 200620093561U CN 200961463 Y CN200961463 Y CN 200961463Y
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- CN
- China
- Prior art keywords
- casing
- pipe
- oil
- sealing
- sleeve
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- 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
An oil field oil drilling casing column and a novel simple casing head used for connecting with a well head comprise a casing flange, a casing double male sub, a top stiffening tube, a press sleeve, a bottom stiffening tube, a sealing top board, a sealing bottom board, an oil well cementing hole and pipe plug, a suspending seat body, a suspender, a surface casing coupling, a superficial casing, an oil jacketed coupling, and an oil jacketed casing, wherein the casing flange and the casing double male sub are connected through taper thread, the top stiffening tube supports the casing flange, the press sleeve is connected with the top and the bottom stiffening tubes through screw, the press sleeve is firmly press on the sealing top and bottom boards, the lateral surface of the bottom stiffening tube is provided with the oil well cementing hole and pipe plug, the sealing bottom board is arranged in the bottom stiffening tube which is connected with the suspending seat body through taper thread, and the suspender is seated on the step of the suspending seat body which is connected with the surface casing coupling, the superficial casing, the casing double male sub, the oil jacketed coupling, and the oil jacketed casing though taper thread. The utility model solves the problems of the prior art of needing cutting and welding, and the unevenness of the well head, which can be used in oil drilling exploration construction.
Description
Technical field:
The utility model relates to a kind of oil field petroleum works boring casing post connects usefulness with well head a kind of novel simple casing head.
Background technology:
Casing head is the vitals that casing string connects with well head, is the link that tubing head and gas production wellhead are installed, and also is the indispensable means of oil gas well ordinary production.The major function of casing head is suspension sleeve, annular seal space.Casing head generally divides normal standard casing head and simple and easy casing head.The normal standard casing head has that the suspension ability is big, sealing load is big and have the technical performance that satisfies various job requirements, but its complex structure huge loaded down with trivial details, cost an arm and a leg, install and waste time and energy, be used for exploration well more.This casing head sealing is by rubber parts, high-pressure injection moulding fat, steel ring sealing.The installation requirement strictness has a link to go wrong, and just leaks easily, makes troubles to production; Simple and easy casing head is of a great variety, and structure is different, and pluses and minuses are had nothing in common with each other.Each oil field is many adopts according to different blocks, dissimilar oil well.Have the simple and easy casing head of part to need to cut, weld operation in the suspension sleeve construction, not just be not prone to the well head injustice, bleed steams, cuts bad sleeve pipe, influences water flood recovery operation and oil well life-span, also has the simple and easy casing head body of part thick and heavy, and shortcomings such as complexity are installed.
Summary of the invention:
The utility model purpose is to provide a kind of novel simple casing head, it solved exist in the prior art in suspension sleeve construction, need to cut, weld operation, it is not straight and even to be prone to well head, bleed steams, cuts bad sleeve pipe; Body is thick and heavy, and complicated problems is installed.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of novel simple casing head by the two public pipe nipples of casing flange, sleeve pipe, go up reinforcing pipe, clamping sleeve, reinforcing pipe, sealing top board, sealing lower platen, cementing hole and plug, hangoff receptacle main body, hanger, table cover box cupling, surface pipe, oil jacket box cupling, production string down; Casing flange is that taper thread is connected with the two public pipe nipples of sleeve pipe, last reinforcing pipe supporting sleeve flange, clamping sleeve and last reinforcing pipe, clamping sleeve is with following reinforcing pipe and is threaded, clamping sleeve compresses the sealing top board, connection compresses the sealing lower platen to the sealing top board by sealing plate, side at following reinforcing pipe is provided with cementing hole and plug, to seal lower platen packs into to descend in the reinforcing pipe, following reinforcing pipe is sat the main body taper thread with suspension and is connected, on hangoff receptacle main body step, the hangoff receptacle main body is overlapped box cupling with table with the hanger seat, table cover box cupling and surface pipe, two public pipe nipples of sleeve pipe and oil jacket box cupling, the oil jacket box cupling is taper thread with production string and is connected; The installation of this simple and easy casing head and use: after the surface pipe well cementation is finished, unload surface pipe and connect epimerite, to hang the sleeve pipe in coordinate body and top layer the top and be connected,, blowout preventer will be installed then hanging seat main body top installation rising pipe nipple and blowout preventer, four-way, flange of the supporting end; After the oil well finishing drilling, when being lowered to last root production string hanger is inserted in, makes it directly be sitting in suspension and take, carry out normal cementing operation; After cementing operation is finished, unload blowout preventer, four-way, end flange and rising pipe nipple.The lower support pipe is screwed into suspension sits, then pressing plate is packed into, the dress clamping sleeve compresses; The two public pipe nipples of mounting sleeve, production string flange and last reinforcing pipe can be installed oil recovery (gas) tree at an upper portion thereof.
The new beneficial effect of this practicality is, this is simple and easy pullover simple in structure, and cost is low, and fitting operation is simple, and is steadily reliable; Do not need to cut sleeve pipe during installation, avoid cutting and easily injure inner layer sleeve hidden danger when injustice brings the not straight and even and vapour of well head to cut; This casing head step hangs, and carrying is big, and the location is placed in the middle automatically, avoids slips to hang, and load is excessive to cause vapour layer casing damage and distortion; Owing to be provided with rubber seal in the middle of gas-bearing formation sleeve pipe and the air pipe flange screwed connection, production casing, can reduce gas and leak; Owing to do not have anti-squeeze method hole, squeeze method once more.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure, 1, casing flange, 2, the two public pipe nipples of sleeve pipe, 3, go up reinforcing pipe, 4, clamping sleeve, 5, reinforcing pipe down, 6, sealing top board, 7, the sealing lower platen, 8, cementing hole and plug, 9, hangoff receptacle main body, 10, hanger, 11, table cover box cupling, 12, surface pipe, 13, oil jacket box cupling, 14, production string.
The specific embodiment:
As shown in the figure, a kind of novel simple casing head by the two public pipe nipples 2 of casing flange 1, sleeve pipe, go up reinforcing pipe 3, clamping sleeve 4, reinforcing pipe 5, sealing top board 6, sealing lower platen 7, cementing hole and plug 8, hangoff receptacle main body 9, hanger 10, table cover box cupling 11, surface pipe 12, oil jacket box cupling 13, production string 14 are formed down; Casing flange 1 is connected for taper thread with the two public pipe nipples 2 of sleeve pipe, last reinforcing pipe 3 supporting sleeve flanges 1, clamping sleeve 4 and last reinforcing pipe 3, clamping sleeve 4 is with following reinforcing pipe 5 and is threaded, clamping sleeve 4 compresses sealing top board 6, connection compresses sealing lower platen 7 to sealing top board 6 by sealing plate, side at following reinforcing pipe is provided with cementing hole and plug 8, to seal lower platen 7 packs into to descend in the reinforcing pipe 5, following reinforcing pipe 5 is sat main body 9 taper threads with suspension and is connected, with 10 of hangers on hangoff receptacle main body 9 steps, hangoff receptacle main body 9 and table cover box cupling 11, table cover box cupling 11 and surface pipe 12, two public pipe nipples of sleeve pipe and oil jacket box cupling 13, oil jacket box cupling 13 is taper thread with production string 14 and is connected.
Claims (1)
1, a kind of novel simple casing head is by casing flange (1), the two public pipe nipples (2) of sleeve pipe, last reinforcing pipe (3), clamping sleeve (4), following reinforcing pipe (5), sealing top board (6), sealing lower platen (7), cementing hole and plug (8), hangoff receptacle main body (9), hanger (10), table cover box cupling (11), surface pipe (12), oil jacket box cupling (13), production string (14) is formed, it is characterized in that: casing flange (1) is connected for taper thread with the two public pipe nipples (2) of sleeve pipe, last reinforcing pipe (3) supporting sleeve flange (1), clamping sleeve (4) and last reinforcing pipe (3), clamping sleeve (4) is with following reinforcing pipe (5) and is threaded, clamping sleeve (4) compresses sealing top board (6), connection compresses sealing lower platen (7) to sealing top board (6) by sealing plate, side at following reinforcing pipe is provided with cementing hole and plug (8), to seal lower platen (7) packs into to descend in the reinforcing pipe (5), following reinforcing pipe (5) is sat main body (9) taper thread with suspension and is connected, on hangoff receptacle main body (9) step, hangoff receptacle main body (9) is overlapped box cupling (11) with table with hanger (10) seat, table cover box cupling (11) and surface pipe (12), two public pipe nipples of sleeve pipe and oil jacket box cupling (13), oil jacket box cupling (13) is taper thread with production string (14) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620093561 CN200961463Y (en) | 2006-10-01 | 2006-10-01 | Simple casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620093561 CN200961463Y (en) | 2006-10-01 | 2006-10-01 | Simple casing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961463Y true CN200961463Y (en) | 2007-10-17 |
Family
ID=38797973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620093561 Expired - Fee Related CN200961463Y (en) | 2006-10-01 | 2006-10-01 | Simple casing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961463Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863791A (en) * | 2019-11-23 | 2020-03-06 | 威飞海洋装备制造有限公司 | Rotatable quick-mounting wellhead connecting device |
| CN114165184A (en) * | 2021-12-17 | 2022-03-11 | 窑街煤电集团有限公司 | Method for reinforcing coal bed gas fracturing wellhead connecting device |
-
2006
- 2006-10-01 CN CN 200620093561 patent/CN200961463Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863791A (en) * | 2019-11-23 | 2020-03-06 | 威飞海洋装备制造有限公司 | Rotatable quick-mounting wellhead connecting device |
| CN114165184A (en) * | 2021-12-17 | 2022-03-11 | 窑街煤电集团有限公司 | Method for reinforcing coal bed gas fracturing wellhead connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 Termination date: 20101001 |