CN201155319Y - Packer capable of adhibiting and descaling - Google Patents
Packer capable of adhibiting and descaling Download PDFInfo
- Publication number
- CN201155319Y CN201155319Y CNU2008200176850U CN200820017685U CN201155319Y CN 201155319 Y CN201155319 Y CN 201155319Y CN U2008200176850 U CNU2008200176850 U CN U2008200176850U CN 200820017685 U CN200820017685 U CN 200820017685U CN 201155319 Y CN201155319 Y CN 201155319Y
- Authority
- CN
- China
- Prior art keywords
- rubber
- agent
- central tube
- fluid
- tube
- 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
- Pipe Accessories (AREA)
Abstract
The utility model provides a patchable dirt-scraping packer, consisting of an upper joint, a lower joint, a central pipe, a spacer ring, a rubber cylinder, a fluid rubber, a curing agent and a dirt-scraping body. The rubber cylinder is a cylindrical rubber body; the center of the external side surface of the rubber cylinder is provided with a downward concave trough which is internally surrounded by and filled with soft rubber; the curing agent is arranged at the circumference outside the fluid rubber; the curing agent contains a consolidation agent, the expansion agent and an adhesive; diaphragms are arranged among all agent layers. The dirt-scraping body is driven by an oil pipe column to scrape and remove the dirt rust on the sleeve wall at the pre-sealing section; the rubber cylinder is expanded outwards when being applied axial force so as to lead the diaphragms among all agent layers to be cracked; the fluid rubber is filled in a concave pit on the internal wall of the sleeve, is then expanded and solidified by the consolidation agent and fixedly bonded on the internal wall of the sleeve together with the adhesive at the same time, thus achieving the sealing effect. Daub dual-component concentric rubber rods can be made for sealing and solidification and filled in the ring-shaped trough; alternatively, the curing agent can be prepared in film-shape and arranged on the external side surface of the rubber cylinder; the metal surfaces of all parts can be disposed by electrical plating or electrochemical coating.
Description
Technical field
The utility model discloses a kind of Remediable scale scraping packer.
Background technology
The packer that oil exploitation at present, water filling are used is to utilize the expansion of rubber to come Sealed casing pipe, reaches the separation oil reservoir, realizes seperated layer water injection oil recovery purpose.Internal surface of sleeve pipe surface originally is smooth, sealing effectiveness is good, but because sleeve pipe is in the underground burn into scale effect that is subjected to sewage, the surface forms concavo-convex within it, bad rubber tube can be pricked in concavo-convex surface, also makes packer rubber can not be close to internal surface of sleeve pipe and miss and gang up, and separates the oil reservoir failure, cause the waterflooding development effect variation, oil recovery reduces.Simultaneously, because the corrosion of underground sewage causes packer corrosion thing card to get lodged on the sleeve pipe, tubing string pulls out the accident of not coming out when causing remaking industry.
Summary of the invention
Task of the present invention is: design a kind of Remediable scale scraping packer, solve packer because the uneven rubber of internal surface of sleeve pipe can not be close to inside pipe wall and miss and gang up, cause the oil-separating layer failure problem.
The utility model is realized in the following way: Remediable scale scraping packer is scraped dirty body, 10 odontexesis, 11 stage clips, 12 circumferential band, 13 lower contacts by 1 top connection, 2 central tubes, 3 spacer rings, 4 rubber tubes, 5 cannelures, 6 fluid rubber, 7 curing compound, 8 barrier films, 9 and is formed.Rubber tube (4) is a rubber bodies cylindraceous, the lateral surface center is downward groove, in groove around fill fluid rubber (6), fluid rubber outsourcing one deck curing compound (7), curing compound includes consolidating agent, expansion agent and bonding agent, applies barrier film (8) between each layer agent.Be installed on the tubing string when can the subsidy formula scraping dirty packer, be lowered to the precalculated position, tubing string drives to be scraped the dirty body segment distance that moves up and down the rust of the dirt on the pre-sealed section internal surface of sleeve pipe is struck off, rubber tube is imposed the axial force compression outwards to expand, make and apply membrane ruptures between each agent, the filling of fluid rubber is in the hole of internal surface of sleeve pipe is recessed, curing compound makes its expansion curing simultaneously, act on simultaneously with cementing agent and to be adhesively fixed on the internal surface of sleeve pipe, reach sealing effectiveness, owing to all be the rubber bodies material, when construction proposes tubing string again rubber bodies destroyed to extract getting final product.For making the unlikely corrosion of metalwork block tubing string, the metal surface of parts can be electroplated or the processing of surface electrochemistry coating.
The beneficial effects of the utility model
1, realized self subsidy sleeve pipe, good sealing effect does not damage rubber tube, uses for a long time, improves the water filling waterflood efficiency, many quarrying oil.2, realized that self-contained scraper scrapes dirt, easy construction.3, packing element sticks on the sleeve pipe, prevents the tubing string wriggling, damages packing element.4, can prevent that the metal erosion thing from causing blocks tubing string.
Description of drawings
Fig. 1 is a kind of assembling schematic diagram of can the subsidy formula scraping dirty packer;
Can the subsidy formula scrape dirty packer by 1 top connection, 2 central tubes,, 3 spacer rings, 4 rubber tubes, 5 cannelures, 6 fluid rubber, 7 curing compound, 8 barrier films, 9 scrape dirty body, 10 odontexesis, 11 stage clips, 12 circumferential band, 13 lower contacts and form.
The specific embodiment
Remediable scale scraping packer top connection upper end is top connection (1), top connection is circular steel cylinder, upper end system internal thread connects the top oil pipe, system external screw thread in lower end connects the interior rib-loop of central tube (2), central tube (2) is that the tapped steel pipe in two ends is connected with last lower contact external screw thread respectively, and central tube (2) is gone up suit spacer ring (3), rubber tube (4) is scraped each parts of dirty body (9).Spacer ring (3) is circular steel cylinder, and 2 of spacer rings are placed on rubber tube (4) two ends, plays centralizing function.Rubber tube (4) is a rubber bodies cylindraceous, effect is a Sealed casing pipe, its outside, two ends chamfering, the cannelure (5) of lateral surface side of cutting out, middle part or circle, place fluid rubber (6) in the cannelure (5), fluid rubber is semi-fluid condition, effect be filled to internal surface of sleeve pipe hole recessed in, place curing compound (7) around outside the fluid rubber, curing compound is a flowing material, include consolidating agent, expansion agent and bonding agent, effect is in case of necessity the fluid rubber swelling to be solidified and be bonded on internal surface of sleeve pipe and the rubber tube, reaches sealing.Barrier film (8) is to isolate the fexible film of each layer material in the time need not mixing.Scrape dirty body (9) and form, be contained in central tube (1) and go up the rubber tube bottom by odontexesis (10), stage clip (11), circumferential band (12).Scraping dirty body effect is the dirt rust that strikes off on the internal surface of sleeve pipe, odontexesis (10) is rectangular strip shape body, the equal portion of 3-4 bar is steps at two ends, the outside on central tube, the in line or oblique row's of upper surface system canine tooth, elongated slot is dug out in the inboard, place stage clip (11) in the groove, odontexesis elastic force is given in the effect of stage clip, and circumferential band (12) is two ring bodies, be enclosed within on the two ends step of odontexesis and fixing, the lateral surface drilling is enclosed within on the central tube.Lower contact (13) upper end system internal and external threads, the upper end internal thread connects central tube, and the lower end external screw thread connects oil pipe, is connector.Rubber tube of Remediable scale scraping packer (4) and the fixed concentric glue rod of clay bi-component of also can making of internal surface of sleeve pipe sealing, filling are in cannelure (5), by the construction of well temperature requirement prescription.Also curing compound (7) can be made membranaceous applying at rubber tube (4) lateral surface.For preventing that the metal erosion thing from blocking the tubing string accident, the metal surface of parts can be electroplated or the processing of surface electrochemistry coating.
Operating principle: Remediable scale scraping packer is connected on the tubing string, be lowered to the precalculated position, since odontexesis under stage clip (11) resilient support diameter greater than casing inner diameter, driving the segment distance that moves up and down by tubing string strikes off the rust of the dirt on the pre-sealed section casing wall, rubber tube outwards expands in the extruding lower compression of axial force, make and apply membrane ruptures between each agent, the filling of fluid rubber is in the hole of internal surface of sleeve pipe is recessed, curing compound makes its expansion curing simultaneously, act on simultaneously with cementing agent and to be adhesively fixed on the internal surface of sleeve pipe, reach sealing effectiveness, owing to be the rubber bodies material all, constructing the rubber bodies surface breakdown to be extracted when proposing tubing string gets final product again.
Claims (4)
1. one by top connection (1), central tube (2), spacer ring (3), rubber tube (4), cannelure (5), fluid rubber (6), curing compound (7), barrier film (8), scrape dirty body (9), odontexesis (10), stage clip (11), circumferential band (12), Remediable scale scraping packer is formed in lower contact (13), it is characterized in that: top connection (1) is circular steel cylinder, upper end system internal thread connects the top oil pipe, system internal thread in lower end connects the external screw thread of central tube (2), central tube (2) is that band externally threaded steel pipe in two ends is connected with last lower contact internal thread respectively, central tube (2) is gone up suit spacer ring (3), rubber tube (4) is scraped each parts of dirty body (9), spacer ring (3) is circular steel cylinder, 2 of spacer rings are placed on rubber tube (4) two ends, rubber tube (4) is a rubber bodies cylindraceous, its outside, two ends chamfering, the cannelure (5) of lateral surface side of making, middle part or circle, place fluid rubber (7) in the cannelure (5), fluid rubber is semi-fluid condition, place curing compound (7) around the fluid rubber, curing compound is a flowing material, include consolidating agent, expansion agent and bonding agent, barrier film (9) is to isolate the fexible film of each layer material in the time need not mixing, scrape dirty body (9) by odontexesis (10), stage clip (11), circumferential band (12) is formed, be contained in rubber tube bottom on the central tube, odontexesis (10) is rectangular strip shape body, the 3-4 bar is distributed on the central tube, two ends, the odontexesis outside are steps, in line or the oblique row's of upper surface system canine tooth, elongated slot is dug out in the inboard, place stage clip (11) in the groove, circumferential band (12) is two ring bodies, be enclosed within on the two ends step of odontexesis and fixing, the drilling of circumferential band lateral surface is enclosed within on the central tube, lower contact (13) upper and lower side system internal and external threads, the upper end internal thread connects central tube, and the lower end external screw thread connects oil pipe.
2. Remediable scale scraping packer according to claim 1 is characterized in that: rubber tube (4) and the fixed concentric glue rod of clay bi-component of also can making of internal surface of sleeve pipe sealing, filling is in cannelure (5).
3. Remediable scale scraping packer according to claim 1 is characterized in that: its sealing also can be made curing compound (7) membranaceous applying at rubber tube (4) lateral surface.
4. Remediable scale scraping packer according to claim 1 is characterized in that: electroplate on the surface of each metal parts or electrochemical coating is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200176850U CN201155319Y (en) | 2008-02-13 | 2008-02-13 | Packer capable of adhibiting and descaling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200176850U CN201155319Y (en) | 2008-02-13 | 2008-02-13 | Packer capable of adhibiting and descaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155319Y true CN201155319Y (en) | 2008-11-26 |
Family
ID=40103102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200176850U Expired - Fee Related CN201155319Y (en) | 2008-02-13 | 2008-02-13 | Packer capable of adhibiting and descaling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155319Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2258920A3 (en) * | 2009-03-31 | 2012-05-30 | Weatherford/Lamb Inc. | Packer providing multiple seals and having swellable element isolatable from the wellbore |
-
2008
- 2008-02-13 CN CNU2008200176850U patent/CN201155319Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2258920A3 (en) * | 2009-03-31 | 2012-05-30 | Weatherford/Lamb Inc. | Packer providing multiple seals and having swellable element isolatable from the wellbore |
| GB2469212B (en) * | 2009-03-31 | 2013-07-24 | Weatherford Lamb | Packer providing multiple seals and having swellable element isolatable from the wellbore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1930364B (en) | System for sealing an annular space in a wellbore | |
| CN201460803U (en) | Oil/water self-expanding packer | |
| CN101509361A (en) | Remediable scale scraping packer | |
| RU2607832C2 (en) | Disconnecting tool | |
| US20090218107A1 (en) | Reservoir Tool for Packer Setting | |
| AU2013241857B2 (en) | An annular barrier having a flexible connection | |
| RU2018132196A (en) | SCRAPER WITH REINFORCED LEADING ELEMENT | |
| CN102762814A (en) | Seal assembly and method of forming a seal assembly | |
| CN102089494A (en) | Sealing arrangement and sealing method | |
| CN2900771Y (en) | Expansion type oil well packer | |
| US7699111B2 (en) | Float collar and method | |
| CN202266231U (en) | Auxiliary pressure-bearing device for rubber barrel of self-expansion packer | |
| CN201155319Y (en) | Packer capable of adhibiting and descaling | |
| CN104563954B (en) | Steel pipe recovers expansion type external pipe packer | |
| CN101586455B (en) | Anchoring expansion type packer | |
| CN101713281A (en) | self-expansion bonding packer | |
| CN201258720Y (en) | Self-expansion bonding packer | |
| CN203499628U (en) | Well washing type step-by-step deblocking expandable long rubber sleeve packer | |
| CN202531133U (en) | Water plugging technological tubular column for sealing middle layer and exploiting two ends of oil well | |
| CN101532372B (en) | Sectional type sieve tube completion tubular column | |
| RU2488685C1 (en) | Behind-casing self-sealing cup packer | |
| CN210317184U (en) | Sleeve structure device | |
| CN210714550U (en) | Expansion pipe subsidy top tie-back intubate and sealing device | |
| CN201443352U (en) | Anchoring expansion packer | |
| CN203796215U (en) | Packer |
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: 20081126 Termination date: 20100213 |