CN201027536Y - Differential pressure type drilling-free blankoff flange - Google Patents
Differential pressure type drilling-free blankoff flange Download PDFInfo
- Publication number
- CN201027536Y CN201027536Y CNU2007200217023U CN200720021702U CN201027536Y CN 201027536 Y CN201027536 Y CN 201027536Y CN U2007200217023 U CNU2007200217023 U CN U2007200217023U CN 200720021702 U CN200720021702 U CN 200720021702U CN 201027536 Y CN201027536 Y CN 201027536Y
- Authority
- CN
- China
- Prior art keywords
- blind plate
- stop plate
- tube
- top connection
- pressure
- 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
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a pressure difference non-drilling stop plate, which comprises an upper bond and a lower bond which is connected with the end of the upper bond. A stop plate apparatus is arranged between the upper bond and the lower bond. The stop plate apparatus comprises a ring-shaped canister-type circular tube. The stop plate is arranged inside the canister-type circular tube. The circumference of the stop plate is sealed with the inner wall of the canister-type circular tube. The utility model is arranged into the tube series according set position for use and reaches the bottom of well according to the set position following the tube series, thereby guaranteeing the sealing of the tube series. In normal construction, a certain pressure is input into the tube series. When the pressure in the tube series is larger than the bearing pressure of the stop plate, the stop plate will break, thereby guaranteeing smoothness of inner diameter of the tube series.
Description
Technical field
The utility model relates to oil-gas field development drilling well, completion tool in the petroleum industry, and particularly a kind of differential blind plate of exempting to bore belongs to the downhole tool class.
Background technology
In the pipe string of sieve tube completion, for packer is sealed, the fluid pressure type hanger is sat to hang and is slipped out of the hand, differential sizing collar is opened etc., all need in bunch tube, to set up certain pressure, need between screen casing and the above-mentioned downhole tool blind plate to be set for this reason, traditional blind plate structure more complicated, after construction finishes, need put into little drill bit from ground is deep on the blind plate blind plate is bored, both prolong the engineering time, stopped over construction speed, wasted lot of manpower and material resources again, and in boring the plate process, might bore partially, bring disaster to duct wall, its sealing is damaged, and can not guarantee the unimpeded of the interior bore of pipeline.
Summary of the invention
Purpose of the present invention just provides a kind of simple in structure, easy to use, can guarantee to construct normally carry out and can guarantee to construct after pipe in latus rectum and sealing differential exempt to bore blind plate.
For achieving the above object, the technical scheme that the utility model adopted is:
A kind of differential blind plate of exempting to bore, comprise top connection and the lower contact that is connected with the end of top connection, it is characterized in that: be provided with the blind plate device between described top connection and the lower contact, described blind plate device comprises the tubular pipe of annular, be provided with blind plate in the described tubular pipe, the periphery of described blind plate is connected with the inner wall sealing of tubular pipe.
Below be further improvement to technique scheme:
The end inwall of described top connection is provided with the step of annular, and an end of described tubular pipe is arranged on the step, and the other end is connected with the end of lower contact.
Described blind plate is an alloy sheets, and its thickness is 1～5mm.
Beneficial effect
The utility model adopts said structure, pack in the pipe string by desired location, and press desired location down to the shaft bottom with pipe string, guaranteed the sealing of pipe string, behind the normal construction, the certain pressure of input in pipe string, the pressure in pipe is gone here and there greater than blind plate bear pressure the time, blind plate will break, thereby has guaranteed the unimpeded of the interior latus rectum of pipe string.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
The specific embodiment
Embodiment 1, as shown in the figure, a kind of differential blind plate of exempting to bore, comprise the lower contact 3 that top connection 1 is connected with end with top connection 1, be provided with the blind plate device between described top connection 1 and the lower contact 3, described blind plate device comprises the tubular pipe 2 of annular, be provided with the blind plate made from alloy material 4 in the described tubular pipe 2, its thickness is 1.5mm, the periphery of described blind plate 4 is connected with the inner wall sealing of tubular pipe 2, and the end inwall of described top connection 1 is provided with the step 5 of annular, and an end of described tubular pipe 2 is arranged on the step 5, the other end is connected with the end of lower contact 3, during use, the utility model is packed in the pipe string by desired location, and press desired location down to the shaft bottom with the pipe string, guaranteed the sealing of pipe string, behind the normal construction, the certain pressure of input in pipe string, the pressure in pipe is gone here and there greater than blind plate bear pressure the time, blind plate will break, thereby has guaranteed the unimpeded of the interior latus rectum of pipe string.
Embodiment 2, as shown in the figure, a kind of differential blind plate of exempting to bore, comprise the lower contact 3 that top connection 1 is connected with end with top connection 1, be provided with the blind plate device between described top connection 1 and the lower contact 3, described blind plate device comprises the tubular pipe 2 of annular, be provided with the blind plate made from alloy material 4 in the described tubular pipe 2, its thickness is 3mm, the periphery of described blind plate 4 is connected with the inner wall sealing of tubular pipe 2, and the end inwall of described top connection 1 is provided with the step 5 of annular, and an end of described tubular pipe 2 is arranged on the step 5, the other end is connected with the end of lower contact 3, during use, the utility model is packed in the pipe string by desired location, and press desired location down to the shaft bottom with the pipe string, guaranteed the sealing of pipe string, behind the normal construction, the certain pressure of input in pipe string, the pressure in pipe is gone here and there greater than blind plate bear pressure the time, blind plate will break, thereby has guaranteed the unimpeded of the interior latus rectum of pipe string.
Claims (3)
1. differentially exempt to bore blind plate for one kind, comprise the lower contact (3) that top connection (1) is connected with end with top connection (1), it is characterized in that: be provided with the blind plate device between described top connection (1) and the lower contact (3), described blind plate device comprises the tubular pipe (2) of annular, be provided with blind plate (4) in the described tubular pipe (2), the periphery of described blind plate (4) is connected with the inner wall sealing of tubular pipe (2).
2. the differential blind plate of exempting to bore according to claim 1 is characterized in that: the end inwall of described top connection (1) is provided with the step (5) of annular, and an end of described tubular pipe (2) is arranged on the step (5), and the other end is connected with the end of lower contact (3).
3. the differential blind plate of exempting to bore according to claim 1 and 2 is characterized in that: described blind plate (4) is an alloy sheets, and its thickness is 1～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200217023U CN201027536Y (en) | 2007-04-30 | 2007-04-30 | Differential pressure type drilling-free blankoff flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200217023U CN201027536Y (en) | 2007-04-30 | 2007-04-30 | Differential pressure type drilling-free blankoff flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027536Y true CN201027536Y (en) | 2008-02-27 |
Family
ID=39131740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200217023U Expired - Fee Related CN201027536Y (en) | 2007-04-30 | 2007-04-30 | Differential pressure type drilling-free blankoff flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027536Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373888A (en) * | 2010-08-06 | 2012-03-14 | 安东石油技术（集团）有限公司 | Sleeve floating coupling and well cementing method |
| CN107385366A (en) * | 2017-06-14 | 2017-11-24 | 中石化石油工程技术服务有限公司 | A kind of high intensity solubility completion is exempted to bore blind plate device |
| CN109989725A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Exempt from brill formula blind plate and exempts to bore plug well shaft fixing technology |
-
2007
- 2007-04-30 CN CNU2007200217023U patent/CN201027536Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373888A (en) * | 2010-08-06 | 2012-03-14 | 安东石油技术（集团）有限公司 | Sleeve floating coupling and well cementing method |
| CN107385366A (en) * | 2017-06-14 | 2017-11-24 | 中石化石油工程技术服务有限公司 | A kind of high intensity solubility completion is exempted to bore blind plate device |
| CN107385366B (en) * | 2017-06-14 | 2021-02-02 | 中石化石油工程技术服务有限公司 | High-strength soluble well completion drilling-free blind plate device |
| CN109989725A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Exempt from brill formula blind plate and exempts to bore plug well shaft fixing technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201460803U (en) | Self-expanding packer when meeting oil and water | |
| CN107313727B (en) | High-strength autolyzed coupling for floating casing | |
| CN201027536Y (en) | Differential pressure type drilling-free blankoff flange | |
| CN101906945A (en) | Hydraulic expansion hanger for expandable screen pipes | |
| CN103089185A (en) | Operating device and method for constant-borehole-diameter expandable casing | |
| CN204984329U (en) | Built -in coiled tubing hanger | |
| CN101173601B (en) | Rotatable hydraulic expanding type tail pipe hanger | |
| CN201412097Y (en) | Hydraulic expansion type hanger for expansion sieve tube | |
| CN104879097A (en) | Gas well production string provided with double parallel pipes | |
| CN102071893A (en) | Underground self-expansion hanger | |
| CN104879098B (en) | A kind of concentric double pipe gas well liquid loading tubing string | |
| CN204703840U (en) | Slotted pipe completion is with exempting to bore plug stage cementing device | |
| CN201486494U (en) | Expansion pipe suspension connection device | |
| CN207920574U (en) | A kind of Geology Drilling draws water water-stop | |
| CN205172513U (en) | Bridging plug device based on expandable casing | |
| CN201705278U (en) | Open hole self-expansion annular packer | |
| CN202914035U (en) | Adaptive equalization control valve of horizontal well | |
| CN202810771U (en) | Mechanical compression type pipe-outside packer for multilateral well completion | |
| CN201671563U (en) | Oil pipe column centralizer for oil field horizontal well | |
| CN204327046U (en) | A kind of bypass pipe sealing device | |
| CN201310314Y (en) | Multipurpose throwing-fishing type blocking and throttling device | |
| CN201106427Y (en) | Rotatable hydraulic machinery double-acting intumescence type tailpiece hanger | |
| CN2844394Y (en) | A kind of completion mechanical type swivel joint | |
| CN202391366U (en) | Downhole positioning device with expansion pipe for petroleum drilling production | |
| CN207686691U (en) | Pipe column for layered gas drive |
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: 20080227 Termination date: 20110430 |