CN203239303U - Extraction device used for injection and extraction of same well - Google Patents
Extraction device used for injection and extraction of same well Download PDFInfo
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- CN203239303U CN203239303U CN 201320121923 CN201320121923U CN203239303U CN 203239303 U CN203239303 U CN 203239303U CN 201320121923 CN201320121923 CN 201320121923 CN 201320121923 U CN201320121923 U CN 201320121923U CN 203239303 U CN203239303 U CN 203239303U
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Abstract
The utility model discloses an extraction device used for injection and extraction of the same well. The extraction device comprises a pipe pillar and a sleeve pipe, wherein the pipe pillar is sleeved inside the sleeve pipe, the sleeve pipe is provided with an oil-extraction port corresponding to an oil extraction section and a water-injection port corresponding to a water-injection section, and a secondary pipe is arranged at the upper portion between the pipe pillar and the sleeve pipe. The pipe pillar comprises a concentric double-pipe, a plurality of packers and an oil-extraction passage, wherein the upper end of the concentric double-pipe is connected with an upper oil pipe through a Y-shaped connector, the lower end of the concentric double-pipe is connected with a lower oil pipe, an injection distributor is arranged in the position, corresponding to the water-injection section, on the concentric double-pipe, the packers are connected between the concentric double-pipe and the sleeve pipe of an oil layer, and are respectively located at the upper portion of the concentric double-pipe and in the position between the oil-extraction section and the water-injection section, and the oil-extraction passage is arranged on the pipe pillar and corresponds to the position of the oil-extraction port. The extraction device used for injection and extraction of the same well can reduce the number of wells in the extraction process, saves the cost of well drilling, and improves the oil yield.
Description
Technical field
The utility model relates to oil field development field separate zone production technology, particularly relates to a kind of quarrying apparatus of adopting for same-well injection, and it is used for improving fast mature oilfield output.
Background technology
The separate zone production technology comprises that separate zone waterflooding technology, oil production by layer and same-well injection adopt three class development technology technology.Seperated layer water injection is the agent technology of hierarchical-development at present.Oil production by layer is difficult to eliminate the interlayer interference that flowing bottomhole pressure (FBHP) produces, and the scene is not inclined to application.And " same-well injection is adopted " technology comprises " downhole oil-water separation and re-injection " (being that the down-hole same-well injection is adopted) and co-well oil-pumping and water-injecting, co-well oil-pumping and water-injecting refers to for water injection well, the formation water of extraction water layer is injected its oil reservoir, and co-well oil-pumping and water-injecting is fit to the particular surroundings such as sea, polar region and drought-hit area.
It is by the down-hole complex appts that traditional down-hole same-well injection is adopted, and production fluid is carried out to a certain degree separation, its layer of the oil-polluted water re-injection after will separating again.The same power source drives water filling-oil recovery two pumps.Think in the practice oil viscosity higher (＞5cP) time, separating effect is difficult to ensure card; Return water water quality and the monitoring of re-injection amount are difficult; To low-permeability layer or do not employ produce when layer injects unsustainable; The underground equipment period of validity is short, shakes out or all the more so when analysing wax.
In addition, oil-containing in the return water can reduce output or is converted into the constraint oil saturation that can not employ and causes reserves wastes.(referring to, the article such as " to downhole oil-water separation with the understanding of well re-injection " of " the downhole oil-water separation technology is in the application of Rate in Liaohe Oil-bearing Area " of Sun Qingsong, Jinsong ZHANG.)
At present, there is field trial in the oil fields such as the domestic Liaohe River, triumph, grand celebration, test moisture have in various degree descend, but extract not, output often reduces; In case but extract will make to annotate and adopt unbalancely, affect offset well output, the re-injection parameter monitoring is difficult in addition, and the balanced flood reality difficulty in the reality accomplishes, this is the most important factor that it is difficult to promote.
The utility model content
The purpose of this utility model is, a kind of quarrying apparatus of adopting for same-well injection is provided, and it can reduce the quantity of digging a well when exploitation, the saving cost, and can improve oil reservoir output.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
A kind of quarrying apparatus of adopting for same-well injection, described quarrying apparatus comprises tubing string and sleeve pipe, described tubing string is set in the described sleeve pipe, is respectively equipped with the corresponding production ports of section and the water filling port of corresponding water filling section of recovering the oil on the described sleeve pipe, and the top between described tubing string and the sleeve pipe is provided with looped pipeline; Described tubing string comprises: concentric double pipe, and the upper end of described concentric double pipe is connected with upper oil pipe by breeches joint, and the lower end of concentric double pipe is connected with lower oil pipe, and the position of corresponding described water filling section is provided with distributor on the described concentric double pipe; A plurality of packers, it is connected between concentric double pipe and the sleeve pipe, and described packer lays respectively at the top of concentric double pipe and on described position of recovering the oil between section and the water filling section; The oil recovery passage, it is arranged on the described tubing string, and the position of corresponding described production ports.
The aforesaid quarrying apparatus of adopting for same-well injection, described concentric double pipe comprises inner and outer tubes, described outer tube sleeve is located at the outside of described inner tube, the upper end of described inner tube is connected with described upper oil pipe by described breeches joint, the lower end of the annular space between the described inner and outer pipe and described inner tube are isolated mutually, and described distributor is arranged on the described outer tube.
The aforesaid quarrying apparatus of adopting for same-well injection, the lower end of described inner tube connects described lower oil pipe, the lower end closed of the annular space between the described inner and outer pipe.
The aforesaid quarrying apparatus of adopting for same-well injection, described oil recovery passage comprises the openings that is arranged on the described lower oil pipe.
The aforesaid quarrying apparatus of adopting for same-well injection, described oil recovery passage also comprises horizontal duct, and described horizontal duct is arranged on the described concentric double pipe, the both ends open of described horizontal duct, and the one end is connected with described inner tube, and the other end is connected with described outer tube.
The aforesaid quarrying apparatus of adopting for same-well injection, the lower end closed of described inner tube, described outer tube connects described lower oil pipe, and described outer tube and described lower oil pipe are integrated structure, the lower end closed of described lower oil pipe.
The aforesaid quarrying apparatus of adopting for same-well injection, described oil recovery passage is horizontal duct, described horizontal duct is arranged on the described concentric double pipe, the both ends open of described horizontal duct, and the one end is connected with described inner tube, and the other end is connected with described outer tube.
Characteristics of the present utility model and advantage are:
The quarrying apparatus that traditional down-hole same-well injection is adopted needs cyclone separator and re-injection booster pump in the down-hole, the down-hole needs dynamic equipment, and structure is complicated.And in the quarrying apparatus of the present embodiment, its tubing string is static, does not need cyclone separator and re-injection booster pump, so that the structure of quarrying apparatus is comparatively simple.
In addition, the quarrying apparatus of the present embodiment so that inject, two kinds of fluids of extraction flow same well is parallel, so can reduce the quantity of well-digging, save cost, can also improve oil reservoir output.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the first embodiment schematic diagram of the quarrying apparatus of adopting for same-well injection of the present utility model;
Fig. 2 is the second embodiment schematic diagram of the quarrying apparatus of adopting for same-well injection of the present utility model;
Fig. 3 is the third embodiment schematic diagram of the quarrying apparatus of adopting for same-well injection of the present utility model;
Fig. 4 is the schematic perspective view of positive apparent direction of the concentric double pipe of the quarrying apparatus of adopting for same-well injection of the present utility model;
Fig. 5 is the schematic perspective view of side-looking direction of the concentric double pipe of the quarrying apparatus of adopting for same-well injection of the present utility model;
Fig. 6 is the A-A line sectional drawing of Fig. 2;
Fig. 7 adopts the utility model embodiment to transfer the comparison diagram of the effect of stifled, pulse or the measure of non-pulse control water with adopting the deep.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment has proposed a kind of quarrying apparatus of adopting for same-well injection, it comprises tubing string and sleeve pipe 1, described tubing string is set in the described sleeve pipe 1, be respectively equipped with the corresponding production ports 1a of section Y and the water filling port 1b of corresponding water filling section S of recovering the oil on the described sleeve pipe 1, the top between described tubing string and the sleeve pipe 1 is provided with looped pipeline 2.Described tubing string comprises concentric double pipe 3, a plurality of packer 4 and oil recovery passage.The upper end of described concentric double pipe 3 is connected with upper oil pipe 6 by breeches joint 5, and the lower end of concentric double pipe 3 is connected with lower oil pipe 7, and the position of corresponding described water filling section S is provided with distributor 8 on the described concentric double pipe 3.A plurality of packers 4 are connected between concentric double pipe 3 and the sleeve pipe 1, and described packer 4 lays respectively at the top of concentric double pipe 3 and on described position of recovering the oil between section Y and the water filling section S.Described oil recovery channel setting is on described tubing string, and the position of corresponding described production ports 1a.
Wherein, described looped pipeline 2 also well head connects, and the wellhead assembly design is referring to patent CN201020192634.9.
According to an embodiment of the present utility model, cooperation Fig. 4-shown in Figure 6, described concentric double pipe 3 comprises inner tube 3a and outer tube 3b, described outer tube 3b is set in the outside of described inner tube 3a, the upper end of described inner tube 3a is connected with described upper oil pipe 6 by described Y type joint 5, lower end and the described inner tube 3a of the annular space between described inner and outer pipe 3a, the 3b isolate mutually, the lower end that is the annular space between inner and outer pipe 3a, the 3b is not communicated with mutually with described inner tube 3a, and described distributor 8 is arranged on the described outer tube 3b.
The quarrying apparatus that traditional down-hole same-well injection is adopted needs cyclone separator and re-injection booster pump in the down-hole, the down-hole needs dynamic equipment, and structure is complicated.And in the quarrying apparatus of the present embodiment, its tubing string is static, does not need cyclone separator and re-injection booster pump, so that the structure of quarrying apparatus is comparatively simple.
In addition, the quarrying apparatus of the present embodiment so that inject, two kinds of fluids of extraction flow same well is parallel, so can reduce the quantity of well-digging, save cost, can also improve oil reservoir output.
Embodiment 2
Fig. 1 and Fig. 2 have shown the schematic diagram of first and second kind embodiment of the present utility model, and the tubing string shown in Fig. 1 can be described as the top and closes the beam type tube post, and the tubing string shown in Fig. 2 can be described as the middle part and closes the beam type tube post.As depicted in figs. 1 and 2, the lower end of described inner tube 3a connects described lower oil pipe 7, the lower end closed of the annular space between described inner and outer pipe 3a, the 3b.
Furthermore, as shown in Figure 1, described oil recovery passage comprises the openings 9 that is arranged on the described lower oil pipe 3b.In the present embodiment, the oil water mixture of the section of recovering the oil Y enters in the lower oil pipe 7 by production ports 1a and openings 9, and then enters in inner tube 3a and the upper oil pipe 6.
In addition, as shown in Figure 2, when described oil recovery section Y is more, when for example having two oil recovery section Y, described oil recovery passage comprises the openings 9 that is arranged on the described lower oil pipe 3b, and horizontal duct 10, described horizontal duct 10 is arranged on the described concentric double pipe 3, the both ends open of described horizontal duct 10, and the one end is connected with described inner tube 3a, and the other end is connected with described outer tube 3b.In the present embodiment, the oil water mixture of the section of recovering the oil Y enters in the sleeve pipe 1 by production ports 1a, and respectively by 9 entering in the lower oil pipe 7 in the openings, and enter in the inner tube 3a by horizontal duct 10.
In the present embodiment, because the inside and outside two ends of horizontal duct 10 are connected with outer tube 3b with inner tube 3a respectively, continue to dirty so that the water of the annular space between inner and outer pipe 3a, the 3b is walked around horizontal duct 10, can't enter among the inner tube 3a; And oil water mixture enters among the inner tube 3a by horizontal duct 10, can't enter in the annular space between inner and outer pipe 3a, the 3b.
Fig. 3 has shown the schematic diagram of the third embodiment of the present utility model, and the tubing string shown in Fig. 3 can be described as the bottom and closes the beam type tube post.As shown in Figure 3, the lower end closed of described inner tube 3a, described outer tube 3b connects described lower oil pipe 7, and described outer tube 3b and described lower oil pipe 7 be integrated structure, and namely described outer tube 3b directly uses the lower end closed of described lower oil pipe 7 as lower oil pipe 7 to downward-extension.
Furthermore, described oil recovery passage is horizontal duct 10, and described horizontal duct 10 is arranged on the described concentric double pipe 3, the both ends open of described horizontal duct 10, and the one end is connected with described inner tube 3b, and the other end is connected with described outer tube 3b.
Other structures, operating principle and the beneficial effect of present embodiment is identical with embodiment 1, does not repeat them here.
A kind of exploitation method of the quarrying apparatus of adopting for same-well injection, described exploitation method comprises step:
A, recover the oil section Y and water filling section S are set in same well.
B, water flow down from described looped pipeline 2, enter the annular space between inner and outer pipe 3a, the 3b of described concentric double pipe 3.
C, treat that the water level of the annular space between described inner and outer pipe 3a, the 3b arrives the position of described distributor 8, water then flows out described outer tube 3b by distributor 8, and enters described water filling section S by described water filling port 1b and carry out water filling.
The oil water mixture of D, described oil recovery section Y enters described inner tube 3a and upper oil pipe 6 in the described tubing string by described production ports 1a and described oil recovery passage, and is drawn out of by oil well pump.
Wherein, when described well is oil well, the superelevation aquifer in the described oil well can be made as described water filling section S, all the other well sections are described oil recovery section Y.And when described well is well, will penetrate out without the well section of water filling section in the described well and as described oil recovery section Y, the described water filling section of all the other well Duan Zewei S.
According to an embodiment of the present utility model, as shown in Figure 1, recover the oil section Y and a water filling section S are set in same well, described oil recovery section Y is positioned at the below of water filling section S; The lower end of described inner tube connects described lower oil pipe, the annular space sealing between the described inner and outer pipe, and described oil recovery passage is the openings 9 that is arranged on the described lower oil pipe.
According to an embodiment of the present utility model, as shown in Figure 2, two recover the oil section Y and water filling section S are set in same well, described water filling section S recovers the oil between the section Y at described two; The lower end of described inner tube 3a connects described lower oil pipe 7, the lower end closed of the annular space between described inner and outer pipe 3a, the 3b; The described oil recovery passage of the oil recovery section Y of corresponding water filling section S top is horizontal duct 10, described horizontal duct 10 is arranged on the described concentric double pipe 3, the both ends open of described horizontal duct 3, and the one end is connected with described inner tube 3a, and the other end is connected with described outer tube 3b; The described oil recovery passage of the oil recovery section Y of corresponding water filling section S below is the openings 9 that is arranged on the described lower oil pipe 7.
According to an embodiment of the present utility model, as shown in Figure 3, recover the oil section Y and a water filling section S are set in same well, described oil recovery section Y is positioned at the top of water filling section S; The lower end closed of described inner tube 3a, described outer tube 3b connects described lower oil pipe 7, and described outer tube 3b and described lower oil pipe 7 are integrated structure, the lower end closed of described lower oil pipe 3b; Described oil recovery passage is horizontal duct 10, and described horizontal duct 10 is arranged on the described concentric double pipe 3, the both ends open of described horizontal duct 10, and the one end is connected with described inner tube 3a, and the other end is connected with described outer tube 3b.
The following describes the test effect of the present embodiment.
The trial zone is positioned at BLOCK OF LAMADIAN OIL FIELD east northeast one district, is a mild monocline, tomography agensis, area 2.16km
2Hole condition, oil reservoir developmental state, well pattern and exploitation course are representative, can reflect the In The Development of Lamadian Oil Field present situation.Contain approximately 300m of well section span, profit, interface of oil and gas unification; Interlayer shale thickness generally surpasses 2m, interlayer distributional stability between Sa, Portugal, Senior Three cover oil reservoir.Oil reservoir comprehensive water cut 96.5%, the invalid circulation of injected water is serious.
Use numerical simulation technology, the SIII of 52 mouthfuls of ultra-high water-containing oil wells and 31 mouthfuls of well saliva wells or P I oil group are implemented traditional same-well injection adopts with the same-well injection of the present embodiment and adopts, referring to shown in Figure 7, option A among Fig. 7 is to adopt the same-well injection of the present embodiment to adopt, option b is to adopt dark accent the in bottom to add the scheme of transferring water filling, scheme C adopts the dark scheme of transferring in bottom, and scheme D adopts general dark scheme of transferring, and scheme E is the scheme that adopts cyclic waterflooding.As can be seen from Figure 7, the effect that the same-well injection of employing the present embodiment is adopted is fairly obvious, 2.5 percentage points of maximum rainfall amplitudes, and surface water oil ratio is reduced to 12.3, the invalid production fluid amount decline 1/3 of well head from 19; Period of validity reached more than 5 years, had improved yield stability, and stable yields is the cardinal task of old filed; Compare with existing exploitation method, increase on year-on-year basis and improve 1.5 percentage points of recovery ratios in oily 50.2%, 5 year, meaning is very large.
Characteristics and the meaning of the utility model embodiment are as follows:
1. can be used for well, to roll up the oil-producing well section, significantly improve output, the Daqing placanticline stable yields is topped bar;
2. can be used for oil well, realize " not exclusively metaideophone ", avoided the forfeiture of oil well output, but the plane is adjusted again;
3. there are many cover well patterns to divide when adopting different oil reservoir, " same-well injection is adopted " of the present embodiment can be realized the encryption of certain layer position is controlled for existing well pattern, save drilling cost.
Other structures, operating principle and the beneficial effect of present embodiment is identical with embodiment 1 or embodiment 2, does not repeat them here.
The above only is several embodiment of the present utility model, and those skilled in the art can carry out various changes to the utility model embodiment according to application documents are disclosed, modification or combination and do not break away from spirit and scope of the present utility model.
Claims (7)
1. one kind is used for the quarrying apparatus that same-well injection is adopted, it is characterized in that, described quarrying apparatus comprises tubing string and sleeve pipe, described tubing string is set in the described sleeve pipe, be respectively equipped with the corresponding production ports of section and the water filling port of corresponding water filling section of recovering the oil on the described sleeve pipe, the top between described tubing string and the sleeve pipe is provided with looped pipeline; Described tubing string comprises:
Concentric double pipe, the upper end of described concentric double pipe is connected with upper oil pipe by breeches joint, and the lower end of concentric double pipe is connected with lower oil pipe, and the position of corresponding described water filling section is provided with distributor on the described concentric double pipe;
A plurality of packers, it is connected between concentric double pipe and the sleeve pipe, and described packer lays respectively at the top of concentric double pipe and on described position of recovering the oil between section and the water filling section;
The oil recovery passage, it is arranged on the described tubing string, and the position of corresponding described production ports.
2. the quarrying apparatus of adopting for same-well injection according to claim 1, it is characterized in that, described concentric double pipe comprises inner and outer tubes, described outer tube sleeve is located at the outside of described inner tube, the upper end of described inner tube is connected with described upper oil pipe by described breeches joint, the lower end of the annular space between the described inner and outer pipe and described inner tube are isolated mutually, and described distributor is arranged on the described outer tube.
3. the quarrying apparatus of adopting for same-well injection according to claim 2 is characterized in that, the lower end of described inner tube connects described lower oil pipe, the lower end closed of the annular space between the described inner and outer pipe.
4. the quarrying apparatus of adopting for same-well injection according to claim 3 is characterized in that, described oil recovery passage comprises the openings that is arranged on the described lower oil pipe.
5. the quarrying apparatus of adopting for same-well injection according to claim 4, it is characterized in that, described oil recovery passage also comprises horizontal duct, described horizontal duct is arranged on the described concentric double pipe, the both ends open of described horizontal duct, and the one end is connected with described inner tube, and the other end is connected with described outer tube.
6. the quarrying apparatus of adopting for same-well injection according to claim 2 is characterized in that, the lower end closed of described inner tube, and described outer tube connects described lower oil pipe, and described outer tube and described lower oil pipe are integrated structure, the lower end closed of described lower oil pipe.
7. the quarrying apparatus of adopting for same-well injection according to claim 6 is characterized in that, described oil recovery passage is horizontal duct, described horizontal duct is arranged on the described concentric double pipe, the both ends open of described horizontal duct, and the one end is connected with described inner tube, and the other end is connected with described outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121923 CN203239303U (en) | 2013-03-18 | 2013-03-18 | Extraction device used for injection and extraction of same well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121923 CN203239303U (en) | 2013-03-18 | 2013-03-18 | Extraction device used for injection and extraction of same well |
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| CN203239303U true CN203239303U (en) | 2013-10-16 |
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| CN 201320121923 Expired - Lifetime CN203239303U (en) | 2013-03-18 | 2013-03-18 | Extraction device used for injection and extraction of same well |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Device and method for exploitation for single-well injection-production |
| CN111434884A (en) * | 2019-01-14 | 2020-07-21 | 中国石油天然气股份有限公司 | Method and device for acquiring working parameters of double-pipe gas control and liquid recovery |
| CN113982547A (en) * | 2021-11-02 | 2022-01-28 | 江苏金石机械集团有限公司 | Same-well layered production and injection wellhead device with cable |
| CN114109329A (en) * | 2021-12-01 | 2022-03-01 | 东北石油大学 | Injection-production same-well device and injection-production same-well system |
| RU2769027C1 (en) * | 2021-10-28 | 2022-03-28 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method for intensifying the production of reservoir products with bottom water (options) |
-
2013
- 2013-03-18 CN CN 201320121923 patent/CN203239303U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Device and method for exploitation for single-well injection-production |
| CN103184859B (en) * | 2013-03-18 | 2015-09-09 | 中国石油天然气股份有限公司 | For quarrying apparatus and the method for single-well injection-production |
| CN111434884A (en) * | 2019-01-14 | 2020-07-21 | 中国石油天然气股份有限公司 | Method and device for acquiring working parameters of double-pipe gas control and liquid recovery |
| CN111434884B (en) * | 2019-01-14 | 2022-05-10 | 中国石油天然气股份有限公司 | Method and device for acquiring working parameters of double-pipe gas control and liquid recovery |
| RU2769027C1 (en) * | 2021-10-28 | 2022-03-28 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method for intensifying the production of reservoir products with bottom water (options) |
| CN113982547A (en) * | 2021-11-02 | 2022-01-28 | 江苏金石机械集团有限公司 | Same-well layered production and injection wellhead device with cable |
| CN114109329A (en) * | 2021-12-01 | 2022-03-01 | 东北石油大学 | Injection-production same-well device and injection-production same-well system |
| CN114109329B (en) * | 2021-12-01 | 2022-10-04 | 东北石油大学 | Injection-production same-well device and injection-production same-well system |
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Granted publication date: 20131016 Effective date of abandoning: 20150909 |
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