CN201574737U - Split-type subdivision oil extraction device - Google Patents
Split-type subdivision oil extraction device Download PDFInfo
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- CN201574737U CN201574737U CN2010200226113U CN201020022611U CN201574737U CN 201574737 U CN201574737 U CN 201574737U CN 2010200226113 U CN2010200226113 U CN 2010200226113U CN 201020022611 U CN201020022611 U CN 201020022611U CN 201574737 U CN201574737 U CN 201574737U
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Abstract
The utility model discloses a split-type subdivision oil extraction device, which relates to the technical field of oil exploitation machinery. The device comprises a seat seal layering system, a liquid feeding system and a separate extraction and simultaneous pumping system; the seat seal layering system is graded and connected in series with the liquid feeding system to form a whole; and the separate extraction and simultaneous pumping system is arranged in the seat seal layering system and the liquid feeding system which are connected in series in a graded axial movable mode. Single-stage or double-stage layering structure can be combined into the multi-layer subdivision oil extraction device; and the device realizes subdivision oil extraction, economically and efficiently fulfills the purpose of synchronous exploitation of underground oil layers, and improves the extraction rate of an oil well. The device has the characteristics of simple and novel structure, convenient combination, broad application prospect and remarkable economic and social benefits.
Description
Technical field:
The utility model relates to the oil exploitation field of mechanical technique.
Background technology:
Adopt the requirement of mode in order to satisfy different oil reservoirs and different machines, personnel have carried out continuous improvement and innovation to all kinds of mechanical oil recovery devices, downhole packer and process matched therewith in the field, have now formed two kinds of more complete oil production by layer modes:
The one, machinery card water blockoff formula layering oil production technology, 1. mechanical compression type packer separate-layer production string utilizes the packing tubing string card of oil extraction pump bottom to seal the high pressure high watercut layer, produces the low wet oil layer that forces down; Advantage: oil extraction pump is gone into the well with envelope card tubing string one-trip string.2. the pipe column type oil production by layer technology of giving up, envelope card type separate-layer production string and down-hole fixed tubular column change the laminar separate-layer production string arbitrarily, realized that the down-hole integrates water detection, Ka Shui, can satisfy two～four intervals and change the needs that layer is produced arbitrarily, not only improved the success rate of mechanical Ka Shui and efficient, increase oil well output, fully excavated the potentiality of non-main layer; And reduced well in operation, and reduced operating cost, alleviated the pollution damage of oil reservoir.3. the integrated separate-layer production string of undergauge well separate-layer production string and mechanical sand control and oil production by layer has solved the diminish separate zone production of oil well of pit shaft internal diameter behind casing deformation well and the loose sand oil accumulation mechanical sand control.
The 2nd, divide and adopt with taking out technology, the key component of this technology---separate extracting pump mainly is made up of two pumpss in series, and each pump all has oneself independently feed liquor valve and tapping valve.During oil pumping, last pump and following pump are taken out one deck liquid separately, realize two-layer same adopting, and have avoided the interlayer interference phenomenon, give full play to the potentiality of each oil-bearing series, and non-major oil reservoir is significant to further taping the latent power.
But divide to adopt with the technology of taking out and remain problem both ways: 1. divide to adopt with taking out tubing string and adopt the mechanical compression type packer, packer set is to utilize the weight of top tubing string to realize that tubing string is shape in the shape of a spiral, has aggravated the wearing and tearing of beam hanger and oil pipe during oil recovery.2. the releasing type branch is adopted tubing string, need descend twice tubing string to finish branch during construction and adopt, and workload is big, and the cost height can only change layer production and can't realize that multilayer exploits simultaneously.
In addition, the crude oil artificial lifting way mostly is sucker-rod pumping, and great majority are commingling production, i.e. a plurality of oil reservoirs of pump pumping.Many oil fields oil reservoir is a complex fault block, and the fault block area is little, contain the oil well segment length, petroleum zone is narrow, non-homogeneity is serious, and interlayer contradiction is outstanding.Especially oil field development has entered into the middle and later periods, along with long water filling, causes each formation pressure imbalance, has increased oil reservoir interlayer contradiction longitudinally, and the oil reservoir that pressure is high has suppressed the production capacity of the low oil reservoir of pressure, has reduced the individual well crude output.
The utility model content:
The utility model order is to propose a kind ofly can overcome existing branch and adopt with taking out the defective that technology exists, and avoids interlayer interference, improves the detachable subdivision of reservoir extracting device of oil of oil pump capacity.
The utility model comprises that a seat envelope hierarchical system, feed liquor system and branch adopt with taking out system, and seat envelope hierarchical system is concatenated into one with the feed liquor system level, divides to adopt with taking out the axially movable described seat that is arranged in serial connection of system level and seals in hierarchical system and the feed liquor system.
Described seat envelope hierarchical system mainly by the top connection of arranging from top to bottom, can, seal section, upper packer, go up pump case, go up the pump lower contact, lower packet, down the pump case joint, the pump joint is formed down, described can is threaded in the lower end of top connection, upper packer is threaded in the upper end of pump case, the lower end of last pump case connects goes up the pump lower contact, and lower packet is connected down the upper end of pump case joint.
Described feed liquor system mainly by the eccentric feed liquor valve of upper and lower two covers, and down the pump standing valve forms, go up eccentric feed liquor valve and be connected between can and the upper packer, following eccentric feed liquor valve is connected between pump lower contact and the lower packet.
Described branch adopt with take out system mainly by upward-traveling valves, lower travelling valve, go up hollow stem, down hollow stem, go up pump barrel, down pump barrel, go up double-current travelling valve, double-current travelling valve, hollow last pump plunger, hollow following pump plunger are formed down; The upper end of last hollow stem connects upward-traveling valves, the lower end connects goes up double-current travelling valve, described upward-traveling valves is arranged in the top connection, the lower end of going up double-current travelling valve is connected with following double-current travelling valve by hollow last pump plunger, described double-current travelling valve, hollow last pump plunger and following double-current travelling valve are arranged in the pump barrel, the lower end of double-current travelling valve is by pump plunger under hollow stem connects down down, and the lower end of following pump plunger links to each other with lower travelling valve, and lower travelling valve is arranged in down in the pump barrel; Following pump barrel is arranged in lower packet and the following pump case joint, the upper end of the following pump barrel eccentric feed liquor valve that is threaded down, the lower end of the following pump barrel pump joint that is threaded down, the lower end connection time pump standing valve of following pump joint.
The utility model operating principle:
Feed liquor of the present utility model system be connected in series the external structure of having formed package unit jointly with a seat envelope system, divide adopt a whole set of internal construction that forms with the system of taking out can axially-movable in the pump barrel under last pump barrel reaches.Package unit is by oil pipe G.I.H design oil reservoir position, and the feed liquor system sealing is suppressed by well head and to be made lower packet 8 and 22 seat envelope simultaneously, realization layering; Be connected with upward-traveling valves 2 by being lowered to sucker rod, part is adopted the realization swabbing production that moves up and down with the system of taking out in driving.Adopting with the system of taking out when branch is the feed liquor process when rising with roofbolt: up and down two cover eccentric feed liquor valves 6 and 21, pump standing valve 19 is opened feed liquor simultaneously down, upward-traveling valves 2, go up double-current travelling valve 10, following double-current travelling valve 12, lower prop travelling valve 18 and close; Adopting with the system of taking out when branch is the discharge opeing process with roofbolt when descending: up and down the eccentric feed liquor valve 6 and 21 of two covers close, down pump standing valve 19 close, upward-traveling valves 2, go up double-current travelling valve 10, double-current travelling valve 12, lower prop travelling valve 18 are opened down.
The utility model divides the most basic single step arrangement of extraction system or twin-stage hierarchy by wander up and down valve, double-current travelling valve, pump barrel, hollow stem, pump hollow plunger, eccentric feeding device and go up lower packet and form up and down up and down up and down up and down up and down.By single-stage or twin-stage hierarchy multilayer oil production by layer capable of being combined device, realized the subdivision of reservoir oil recovery, can realize economical, efficiently that the down-hole oil reservoir exploits purpose synchronously, improve the oil well recovery ratio.The utlity model has the characteristics of novelty simple in structure, combined and instant, on the branch extraction system of internal layer under the stage arrangement pump plunger be connected with pump hollow stem on the low-level device, skin is connected with oil pipe, can realize that single-stage or multistage branch adopt structure and be connected in series use successively, can separate interlayer pressure, realize stifled upper strata, divide and draw lower floor, can realize that also any shutoff plug one deck adopts other two layers, thereby reach the purpose that multilayer or subdivision of reservoir recover the oil.The utility model can solve oil well and enter high water-cut stage complex fault block interlayer interference problem, effectively employs hypotonic low moisture fluid producing layer, embodied economical, realize large and small span multiple-zone production purpose efficiently.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
Device described in the accompanying drawing 1 is three layers of oil production by layer state.
As shown in Figure 1, the utility model by top connection 1, upward-traveling valves 2, can 3, seal section 4, go up hollow stem 5, go up eccentric feed liquor valve 6, go up pump barrel 7, upper packer 8, go up pump case 9, go up double-current travelling valve 10, go up pump plunger 11, down double-current travelling valve 12, go up pump lower contact 13, down pump barrel 14, down pump case joint 15, down pump plunger 16, down pump joint 17, lower travelling valve 18, down pump standing valve 19, down hollow stem 20, parts such as eccentric feed liquor valve 21, lower packet 22 are formed down.
Package unit is divided into seat envelope hierarchical system, feed liquor system and branch by production technology to be adopted with taking out system, divides and adopts with taking out in the removable layout of system axial present envelope hierarchical system and the feed liquor system.
Seat envelope hierarchical system mainly by the top connection 1 of arranging from top to bottom, can 3, upper packer 8, go up pump case 9, go up pump lower contact 13, lower packet 22, down pump case joint 15, pump joint 17 is formed down.Can 3 is threaded in the lower end of top connection 1, and upper packer 8 is threaded in the upper end of pump case 9, and the lower end of last pump case 9 connects goes up pump lower contact 13, and lower packet 22 is threaded in down the upper end of pump case joint 15.
Divide adopt with take out system mainly by the upward-traveling valves of arranging from top to bottom 2, go up hollow stem 5, down hollow stem 20, lower travelling valve 18, go up pump barrel 7, down pump barrel 14, hollow last pump plunger 11, down pump plunger 16, go up double-current travelling valve 10, following double-current travelling valve 12 is formed.
Following pump barrel 14 is arranged in lower packet 22 and the following pump case joint 15, the upper end of the following pump barrel 14 eccentric feed liquor valve 21 that is threaded down, the lower end of the following pump barrel 14 pump joint 17 that is threaded down, the lower end connection time pump standing valve 19 of following pump joint 17.
The upper end of last hollow stem 5 connects upward-traveling valves 2, the lower end connects goes up double-current travelling valve 10, upward-traveling valves 2 is arranged in the top connection 1, the lower end of going up double-current travelling valve 10 is connected with following double-current travelling valve 12 by hollow last pump plunger 11, upward double-current travelling valve 10, hollow last pump plunger 11 and following double-current travelling valve 12 are arranged in the pump case 9, the lower end of double-current travelling valve 12 is by pump plunger 16 under hollow stem 20 connects down down, the lower end of following pump plunger 16 links to each other with lower travelling valve 18, and lower travelling valve 18 axially-displaceable dynamic formulas are arranged in down in the pump barrel 14.
Package unit is by oil pipe G.I.H design oil reservoir position, and well head is suppressed and made upper and lower packer 22,22 seat envelope simultaneously, the feed liquor system sealing, and layering finishes.Be lowered to sucker rod and be connected with upward-traveling valves 2, part is adopted with the system of taking out and is carried out the pumping campaign in driving, and it is as follows that the discharge opeing action is advanced in concrete layering:
Three layers of upper, middle and lowers are separated by upper and lower packer 22,22, and upper strata stoste enters in pump barrel 7 chambeies by last eccentric feed liquor valve 6, by the entering in the hollow stem 5 of last double-current travelling valve 10, enter oil pipe through upward-traveling valves 2 again.Middle level stoste enters down in pump barrel 14 chambeies by following eccentric feed liquor valve 21, enters in the pump plunger 11 through double-current travelling valve 12 down, and the wing passage by last double-current travelling valve 10 enters the interior and upper strata crude oil of hollow stem 5 and converges again.Lower floor's stoste enters down pump barrel 14 cavity of resorption lower travelling valves 18 by following pump standing valve 19, in following pump plunger 16 and the following hollow stem 20, enter in the hollow stem 5 through following double-current travelling valve 12, the wing passage of going up double-current travelling valve 10 again and last middle level stoste is converged, enter oil pipe by upward-traveling valves 2 jointly, realize dividing and adopt with taking out.
The utility model hierarchical system structure can be divided into single-stage or twin-stage and form, the most basic single step arrangement by top connection 1, upward-traveling valves 2, can 3, seal section 4, hollow stem 5, go up eccentric feed liquor valve 6, go up pump barrel 7, upper packer 8, go up pump case 9, go up double-current travelling valve 10 and form.The basic twin-stage of pump up and down hierarchy by top connection 1, upward-traveling valves 2, can 3, seal section 4, hollow stem 5, go up eccentric feed liquor valve 6, go up pump barrel 7, upper packer 8, go up pump case 9, go up double-current travelling valve 10, go up pump plunger 11, down double-current travelling valve 12, go up pump lower contact 13, hollow stem 20, down eccentric feed liquor valve 21, lower packet 22, down pump barrel 14, down pump case joint 15, down pump plunger 16, pump joint 17 is formed down.Can be connected in series combination multilayer oil production by layer device by single-stage or twin-stage hierarchy.
Claims (4)
1. detachable subdivision of reservoir extracting device of oil, it is characterized in that comprising that seat seals hierarchical system, feed liquor system and branch and adopts with taking out system, seat envelope hierarchical system is concatenated into one with the feed liquor system level, divides to adopt with taking out the axially movable described seat that is arranged in serial connection of system level and seals in hierarchical system and the feed liquor system.
2. according to the described detachable subdivision of reservoir of claim 1 extracting device of oil, it is characterized in that described seat envelope hierarchical system mainly by the top connection of arranging from top to bottom, can, seal section, upper packer, go up pump case, go up the pump lower contact, lower packet, down the pump case joint, the pump joint is formed down, described can is threaded in the lower end of top connection, upper packer is threaded in the upper end of pump case, the lower end of last pump case connects goes up the pump lower contact, and lower packet is connected down the upper end of pump case joint.
3. according to the described detachable subdivision of reservoir of claim 2 extracting device of oil, it is characterized in that described feed liquor system mainly by the eccentric feed liquor valve of upper and lower two covers, and down the pump standing valve form, go up eccentric feed liquor valve and be connected between can and the upper packer, following eccentric feed liquor valve is connected between pump lower contact and the lower packet.
4. according to the described detachable subdivision of reservoir of claim 3 extracting device of oil, it is characterized in that described branch adopt with take out system mainly by upward-traveling valves, lower travelling valve, go up hollow stem, down hollow stem, go up pump barrel, down pump barrel, go up double-current travelling valve, double-current travelling valve, hollow last pump plunger, hollow following pump plunger are formed down; The upper end of last hollow stem connects upward-traveling valves, the lower end connects goes up double-current travelling valve, described upward-traveling valves is arranged in the top connection, the lower end of going up double-current travelling valve is connected with following double-current travelling valve by hollow last pump plunger, described double-current travelling valve, hollow last pump plunger and following double-current travelling valve are arranged in the pump barrel, the lower end of double-current travelling valve is by pump plunger under hollow stem connects down down, and the lower end of following pump plunger links to each other with lower travelling valve, and lower travelling valve is arranged in down in the pump barrel; Following pump barrel is arranged in lower packet and the following pump case joint, the upper end of the following pump barrel eccentric feed liquor valve that is threaded down, the lower end of the following pump barrel pump joint that is threaded down, the lower end connection time pump standing valve of following pump joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200226113U CN201574737U (en) | 2010-01-05 | 2010-01-05 | Split-type subdivision oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200226113U CN201574737U (en) | 2010-01-05 | 2010-01-05 | Split-type subdivision oil extraction device |
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| Publication Number | Publication Date |
|---|---|
| CN201574737U true CN201574737U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200226113U Expired - Fee Related CN201574737U (en) | 2010-01-05 | 2010-01-05 | Split-type subdivision oil extraction device |
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| CN (1) | CN201574737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967457A (en) * | 2014-04-24 | 2014-08-06 | 中海阳能源集团股份有限公司 | Device for layering and exploiting underground mineral oil according to specific gravities |
| CN110952961A (en) * | 2019-12-13 | 2020-04-03 | 孙肖 | Use method of petroleum deformation cased well layered oil production device |
-
2010
- 2010-01-05 CN CN2010200226113U patent/CN201574737U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967457A (en) * | 2014-04-24 | 2014-08-06 | 中海阳能源集团股份有限公司 | Device for layering and exploiting underground mineral oil according to specific gravities |
| CN103967457B (en) * | 2014-04-24 | 2017-01-18 | 中海阳能源集团股份有限公司 | Device for layering and exploiting underground mineral oil according to specific gravities |
| CN110952961A (en) * | 2019-12-13 | 2020-04-03 | 孙肖 | Use method of petroleum deformation cased well layered oil production device |
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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: 20100908 Termination date: 20190105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |