CN201460799U - Concentric integrated water-plugging finding pipe column - Google Patents
Concentric integrated water-plugging finding pipe column Download PDFInfo
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- CN201460799U CN201460799U CN2009201001379U CN200920100137U CN201460799U CN 201460799 U CN201460799 U CN 201460799U CN 2009201001379 U CN2009201001379 U CN 2009201001379U CN 200920100137 U CN200920100137 U CN 200920100137U CN 201460799 U CN201460799 U CN 201460799U
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- packer
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- pipe column
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Abstract
The utility model relates to a concentric integrated water-plugging finding pipe column, mainly solving the problems that the multilayer watered-out well has large judgment difficulty at the high water-bearing interval, and more fishing times for determining the water-plugging interval. The concentric integrated water-plugging finding pipe column is characterized in that a layer-adjustable packer (31) which is internally provided with a layer-adjustable switch (29) is connected between packers (27, 28). The concentric integrated water-plugging finding pipe column has less fishing times determined at the water-plugging interval, can accurately judge the water-plugging layer, is characterized by saving time and labor and having little workload, is suitable for controlling water and increasing oil in a low-permeability oil field and solves the problem of low-efficiency exploitation of the high water-bearing well.
Description
Technical field:
The utility model relates to down-hole water detecting and plugging pipe column used in a kind of oil field development, particularly a kind of concentric integral water detecting and plugging pipe column.
Background technology:
Along with going deep into of water flooding, the oil field high water-cut well embodies the multi-direction water breakthrough of multilayer, and the moisture difference between water-blocking layer and producing zone is dwindled, and the water blockoff interval is judged characteristics such as difficulty is big.Each oil field adopts methods such as the analysis of sound attitude, test to carry out water detection more at present, but for the big well of interlayer difference, high aquifer pressure height, the water of output may pour in down a chimney into other oil reservoir of this well, influence is to the correct judgement of water layer, because water layer is familiar with the unclear water plugging string that often causes frequently removing, waste operating cost and time, therefore need accurately judgement water blockoff interval.In order accurately to determine the water blockoff interval, carried out the water detecting and plugging pipe column Study on Technology in recent years.Several water detecting and plugging pipe columns are arranged at present, but in application process, certain problem all occurred.Existing hollow pulling looks for water-plugging technique to need pulling blanking plug successively to try to achieve the condition of production of each oil reservoir, has the big problem of pulling workload.For example, for 3 grades of water detecting and plugging pipe columns, use conventional hollow production mandrel pulling and look for water blockoff to need pulling 3 intervals could be asked product respectively 11 times at least.
The utility model content:
Technical problem to be solved in the utility model is to overcome the high water-bearing interval of the multilayer water breakthrough well that exists in the background technology to judge that difficulty is big, determine water blockoff interval pulling problem often, and provide a kind of concentric integral water detecting and plugging pipe column, this concentric integral water detecting and plugging pipe column determines that water blockoff interval pulling number of times is few, have save time, laborsaving, characteristics that workload is few.
The invention for solving the technical problem can reach by following technical solution: this concentric integral water detecting and plugging pipe column comprises the level pressure valve below two packers and the packer, connects the tunable layer packer of built-in tunable layer switch between packer.
Described tunable layer packer two ends are lower contact on the tunable layer packer, connect the packer central tube on the tunable layer packer in the middle of the lower contact; Tunable layer packer top connection top inner chamber has a groove, the duct is arranged at the bottom, the bottom is equipped with three packing elements successively, be respectively the upper, middle and lower packing element, be connected with compression piston, deblocking pin and pin hanging seat in turn between lower rubber cylinder and the lower contact of tunable layer packer, set jump ring and clip spring seat, the external pressure-bearing cover of compression piston, pressure-bearing overlap an end and connect compression piston, and the other end is fixed in the lower contact of tunable layer packer; Between three packing elements spacer ring is arranged.
Described tunable layer switch ends is last lower contact, connect tunable layer switch central tube between last lower contact, connect fishing head in the top connection top, the annular space of top connection inner chamber and fishing head bottom is built-in with the fishing head return spring, the fishing head bottom is supported by cam, open-work is arranged at tunable layer switch central tube top, the corresponding through-hole position of cam, cam center has the camshaft of strap cam torsion spring, connect lower contact under the tunable layer switch central tube, on the tunable layer switch central tube between open-work and lower contact three openings are arranged.
The utility model is compared with the above-mentioned background technology can have following beneficial effect: the tunable layer packer that connects the tunable layer switch in this concentric integral water detecting and plugging pipe column owing to adopted is equipped with between two packers, significantly reduced the pulling number of times of definite water blockoff interval, for 3 grades of water detecting and plugging pipe columns, using conventional hollow production mandrel pulling looks for water blockoff to need pulling 3 intervals could be asked product respectively 11 times at least, at least only need 2 pullings just can finish and use concentric integral water detecting and plugging pipe column, reduced the pulling workload; Can accurately judge water-blocking layer, have save time, laborsaving, characteristics that workload is few. be fit to the low permeability oil field water-control oil-increasing, solved the poor efficiency mining problem of high water-cut well, excavate the remaining oil potentiality, guarantee the continual and steady of output.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is structural representations of tunable layer packer in the accompanying drawing 1;
Accompanying drawing 3 is structural representations of tunable layer switch in the accompanying drawing 1;
Accompanying drawing 4 is tunable layer packer and tunable layer switches set assembling structure schematic diagrames in the accompanying drawing 1.
Among the figure: the 1-fishing head, the 2-top connection, 3-cam retracting spring, 4-salvages headgear, the top connection of 5-tunable layer packer, 6-cam, 7-camshaft, 8-cam torsion spring, 9-packer central tube, 10-tunable layer switch central tube, 11-rubber cushion, 12-opening, the 13-spacer ring, 14-packing element, 15-groove, the 16-compression piston, 17-pressure-bearing cover, 18-pin hanging seat, the 19-clip spring seat, 20-deblocking pin, 21-sets jump ring, the 22-lower contact, 23-shop bolt, the lower contact of 24-tunable layer packer, the 25-plug, 26-sealing ring, 27-packer, the 28-packer, 29-tunable layer switch, 30-level pressure valve, 31-tunable layer packer, 32-open-work, 33-duct.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
Fig. 1 is in conjunction with Fig. 2, shown in Figure 3, and this concentric integral water detecting and plugging pipe column comprises packer 27, packer 28, and level pressure valve 30, packer 27 are connected the tunable layer packer 31 of built-in tunable layer switch 29 with 28 of packers.As shown in Figure 2, described tunable layer packer 31 two ends are tunable layer packer top connection 5, tunable layer packer lower contact 24, and tunable layer packer top connection 5 is connected packer central tube 9 with 24 of tunable layer packer lower contacts; Tunable layer packer top connection 5 top inner chambers have a groove 15, duct 33 is arranged at the bottom, the bottom is equipped with three packing elements 14 successively, be respectively upper and lower packing element and middle packing element, lower rubber cylinder 14 is connected compression piston 16 successively with 24 of tunable layer packer lower contacts, the pin hanging seat 18 of deblocking pin 20 is arranged, the clip spring seat 19 that sets jump ring 21 is arranged, compression piston 16 external pressure-bearing covers 17, pressure-bearing is overlapped 17 1 ends and is connected compression piston 16, and the other end is fixed in the tunable layer packer lower contact 24 by shop bolt 23; Three 14 of packing elements have spacer ring 13; Described compression piston 16, pin hanging seat 18 and tunable layer packer top connection 5, tunable layer packer lower contact 24 and 9 of packer central tubes have sealing ring 26.
As shown in Figure 3, described tunable layer switch 29 two ends are top connection 2, lower contact 22, connect fishing head 1 in top connection 2 tops, the annular space of top connection 1 inner chamber and fishing head 1 bottom is built-in with fishing head return spring 3, fishing head 1 bottom is supported by cam 6, for abrasionproof, durable, the fishing head bottom is surrounded by salvages headgear 4; Open-work 32 is arranged at tunable layer switch central tube 10 tops, cam 6 corresponding open-works 32 places, cam center has the camshaft 7 of strap cam torsion spring 8, the return of cam when the cam torsion spring 8 on the camshaft 7 is used to pull the tunable layer switch out, tunable layer switch central tube connects lower contact 22 10 times, on the tunable layer switch central tube 10 that open-work 32 and lower contact are 22 three openings 12 are arranged, middle opening 12 is a release aperture, both ends open 12 is an inlet opening, inlet opening opening 12 is arranged at lower contact 22 bottoms, inlet opening opening 12 corresponding 3 production oil reservoirs are the inlet opening of exploiting three oil reservoirs of upper, middle and lower.Described tunable layer switch central tube 10 and 22 of lower contacts have sealing ring 26.
The tunable layer packer realizes setting and the deblocking process is: after the tunable layer water detecting and plugging pipe column is gone into the well, suppress with pump truck from the well head oil pipe, make the tunable layer packer realize setting, transmission medium is a clear water. during the tunable layer packer setting, clear water injects from packer central tube 9 inlet openings, it is up to promote compression piston 16, after cutting off shop bolt 23, continue pulling pressure-bearing cover 17, it is up to set jump ring 21, reach set apart from after, setting jump ring 21 is pinned by clip spring seat 19, finish the tunable layer packer setting. when needing tunable layer packer deblocking, the moving packer central tube 9 of upper lifting pipe cornice is up, and pin hanging seat 18 is followed up, cut off deblocking pin 20, tunable layer packer deblocking.
Concentric integral water detecting and plugging pipe column can satisfy the tunable layer of 2-3 level and look for the water blockoff needs.Be that example illustrates operating principle and process with three intervals below.
Perforated interval is divided into three intervals, utilize packer 27, tunable layer packer 31, packer 28 that three intervals are separated, design of string pipe is whole tubing string, and tubing string is connected with packer 27, tunable layer packer 31, packer 28, level pressure valve 30 from top to bottom in turn.The packing element 14 of tunable layer packer 31 has the duct to communicate with oil reservoir up and down respectively, as shown in Figure 4, after tunable layer switch 29 drops into packer central tube 9, cam 6 is under the effect of camshaft 7 and cam torsion spring 8, be stuck in the tunable layer packer top connection 5 inner chamber upper grooves 15, two inlet opening openings 12 on the tunable layer switch central tube 10 communicate with the duct 33 on packing element 14 tops, bottom opening is the centre bore of tunable layer switch lower contact 22, by pulling tunable layer switch 29, the purpose that 3 oil reservoirs are looked for water blockoff is realized in shutoff respective openings 12 ducts.When pulling tunable layer switch 29 out, fishing head by on put on when capable, the unfreezing of control cam, thereby pull tunable layer switch 29 out, adjust in the face of tunable layer switch 29 on ground, opening needs exploitation oil reservoir corresponding aperture road, need not exploit oil reservoir corresponding aperture road with closing, be shipped to again in the tunable layer packer, finish and once look for water blockoff to transfer layer process.
Its detailed process is: utilize packer 27, tunable layer packer 31, packer 28 that oil reservoir is separated into three intervals, after in tunable layer packer 31, installing tunable layer switch 29, in tunable layer switch 29 on the correspondence, the fluid hole opening 12 of middle part interval installs plugs 25; Tubing string down to desired depth, is suppressed release packer 27, packer 28 from oil pipe, carry out oil pipe with dredging vehicle then and drag for oil, try to achieve bottom payzone daily fluid production rate and moisture situation; Pull tunable layer switch 29 in the tunable layer packer out with the pulling car again, the inlet opening opening 12 of corresponding middle part interval in the tunable layer switch is opened, the inlet opening of corresponding bottom is installed plug 25, with the pulling car tunable layer switch 29 is dropped in the tunable layer packer 31, drag for oil by dredging vehicle and try to achieve middle part payzone daily fluid production rate and moisture situation; Pull tunable layer switch 29 in the tunable layer packer out with the pulling car again, the inlet opening opening 12 of corresponding top interval in the tunable layer switch 29 is opened, the inlet opening opening 12 at corresponding middle part is installed plug 25, with the pulling car tunable layer switch 29 is dropped in the tunable layer packer 31, drag for oil by dredging vehicle and try to achieve top payzone daily fluid production rate and moisture situation.Output situation according to each interval, after determining final water blockoff interval, the inlet opening opening of corresponding water blockoff interval in the tunable layer switch 29 is installed plug, described plug all is equipped with plug rubber cushion 11, the inlet opening opening of corresponding pay interval is opened, and is lowered to insert pump and carries out pump and take out production, and liquid flows in the oil pipes by level pressure valve 30 in the well, flow into concentric integral water detecting and plugging pipe column through the corresponding inlet opening opening 12 of the tunable layer switch in the tunable layer packer, at last by extraction.Level pressure valve 30 can satisfy the needs that set of packer 27,28 and tunable layer packer 31 again simultaneously.When needing from now on to continue to transfer layer, need only trip out pump barrel in the insert pump, pull tunable layer switch 29 out, can realize transferring layer to look for water blockoff.
Claims (6)
1. a concentric integral water detecting and plugging pipe column comprises the level pressure valve (30) that packer (27,28) and packer (28) are following, it is characterized in that: the tunable layer packer (31) that connects built-in tunable layer switch (29) between packer (27,28).
2. concentric integral water detecting and plugging pipe column according to claim 1, it is characterized in that: described tunable layer packer (31) two ends are lower contact (5 on the tunable layer packer, 24), connect packer central tube (9) on the tunable layer packer in the middle of the lower contact (5,24); Tunable layer packer top connection (5) top inner chamber has a groove (15), duct (33) is arranged at the bottom, the bottom is equipped with three packing elements (14) successively, be respectively upper, middle and lower packing element (14), be connected with compression piston (16), deblocking pin (20) and pin hanging seat (18) between lower rubber cylinder (14) and tunable layer packer lower contact (24) in turn, set jump ring (21) and clip spring seat (19), the external pressure-bearing cover of compression piston (16) (17), pressure-bearing cover (17) one ends connect compression piston (16), and the other end is fixed in the tunable layer packer lower contact (24); Spacer ring (13) is housed between three packing elements (14).
3. concentric integral water detecting and plugging pipe column according to claim 1, it is characterized in that: described tunable layer switch (29) two ends are last lower contact (2,22), last lower contact (2,22) connect tunable layer switch central tube (10) between, connect fishing head (1) in top connection (2) top, the annular space of top connection (2) inner chamber and fishing head (1) bottom is built-in with fishing head return spring (3), fishing head (2) bottom is supported by cam (6), open-work (32) is arranged at tunable layer switch central tube (10) top, the corresponding open-work of cam (6) (32) is located, there is the camshaft (7) of strap cam torsion spring (8) at cam (6) center, connect lower contact (22) under the tunable layer switch central tube (10), on the tunable layer switch central tube (10) between open-work (32) and lower contact (22) three openings (12) are arranged.
4. concentric integral water detecting and plugging pipe column according to claim 2; It is characterized in that: be equipped with sealing ring (26) between described compression piston (16), pin hanging seat (18) and the upper and lower joint of tunable layer packer (5,24) and packer central tube (9).
5. concentric integral water detecting and plugging pipe column according to claim 3 is characterized in that: sealing ring (26) is arranged between described tunable layer switch central tube (10) and lower contact.
6. concentric integral water detecting and plugging pipe column according to claim 3 is characterized in that: described fishing head (1) bottom is surrounded by salvages headgear (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201001379U CN201460799U (en) | 2009-06-10 | 2009-06-10 | Concentric integrated water-plugging finding pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201001379U CN201460799U (en) | 2009-06-10 | 2009-06-10 | Concentric integrated water-plugging finding pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460799U true CN201460799U (en) | 2010-05-12 |
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ID=42388153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201001379U Expired - Fee Related CN201460799U (en) | 2009-06-10 | 2009-06-10 | Concentric integrated water-plugging finding pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460799U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575956B (en) * | 2009-06-10 | 2012-08-29 | 大庆油田有限责任公司 | Concentric integral water detecting and plugging pipe column |
| CN104989316A (en) * | 2015-06-26 | 2015-10-21 | 中国石油天然气股份有限公司 | Integrated horizontal well water finding and blocking pipe column |
| CN104989342A (en) * | 2015-06-26 | 2015-10-21 | 中国石油天然气股份有限公司 | Integrated horizontal well sectional water injection string |
| CN113982567A (en) * | 2021-09-22 | 2022-01-28 | 西安洛科电子科技股份有限公司 | Oil pipe pressure monitoring device for intelligent layered oil production and use method thereof |
-
2009
- 2009-06-10 CN CN2009201001379U patent/CN201460799U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575956B (en) * | 2009-06-10 | 2012-08-29 | 大庆油田有限责任公司 | Concentric integral water detecting and plugging pipe column |
| CN104989316A (en) * | 2015-06-26 | 2015-10-21 | 中国石油天然气股份有限公司 | Integrated horizontal well water finding and blocking pipe column |
| CN104989342A (en) * | 2015-06-26 | 2015-10-21 | 中国石油天然气股份有限公司 | Integrated horizontal well sectional water injection string |
| CN113982567A (en) * | 2021-09-22 | 2022-01-28 | 西安洛科电子科技股份有限公司 | Oil pipe pressure monitoring device for intelligent layered oil production and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20170610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |