CN201068792Y - Corrugated settling cup and multi-cup iso-flow rate anchor - Google Patents
Corrugated settling cup and multi-cup iso-flow rate anchor Download PDFInfo
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- CN201068792Y CN201068792Y CNU2007201753263U CN200720175326U CN201068792Y CN 201068792 Y CN201068792 Y CN 201068792Y CN U2007201753263 U CNU2007201753263 U CN U2007201753263U CN 200720175326 U CN200720175326 U CN 200720175326U CN 201068792 Y CN201068792 Y CN 201068792Y
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- cup
- corrugated
- corrugation
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Abstract
The utility model discloses a corrugated settling cup and a uniform flow type gas anchor with a plurality of settling cups, which belongs to a gas-liquid separating device. The external contour of a cup body of the corrugated settling cup rises in a corrugated way along the axial direction, thereby facilitating the gas to gather and rise rapidly. the uniform flow type gas anchor with a plurality of settling cups comprises a plurality of corrugated settling cups, and also comprises a central tube, a plurality of protective bodies for the settling cups and a well washing valve; wherein, the central tube is matched and sleeved with a plurality of protective bodies for the settling cups in a clearance way; the central tube between every two protective bodies for the settling cups is matched and sleeved with a plurality of corrugated settling cups in a clearance way; a plurality of liquid inlet holes are arranged at the position on the central tube which is close to the inner bottom of each corrugated settling cup; the lower part of the central tube is connected with the well washing valve; the gas anchor divides the gas-liquid mixture into a plurality of parts through a plurality of corrugated settling cups, and enables the separated gas to gather and rise rapidly by utilizing external contour thereof that rises in a corrugated way; thereby achieving the purposes that the gas is effectively separated. The pump efficiency and the output of the crude oil are increased, the energy is saved, and the consumption is lowered.
Description
Technical field
The utility model relates to a kind of oilfield downhole gas, liquid separating apparatus, a kind of many glasss of equal flow type gas anchors that relate in particular to a kind of corrugation-shaped sedimentation cup and be made up of a plurality of corrugation-shaped sedimentation cups.
Background technology
What oil field existing oil well lifting equipment aspirated when underground work is gas, oil, water three-phase mixed liquor.Gas in the mixed liquor is very big to the effectiveness affects of artificial lift device, and for example, when the oil well pump submergence was in normal range (NR) (150-500m), average pump efficiency only was 30-40%.All kinds of downhole gas of former studies, liquid separating apparatus---gas anchor all is after allowing mixed liquor enter gas anchor in a large number, by the various runners of gas anchor, allow liquid circle round carry out gas in flowing, liquid separates.This kind method separative efficiency is extremely low, especially for the fluid of down-hole viscosity greater than 2mPa.s, is difficult to the purpose that realizes improving pump efficiency, increases output in the The field.Can not make oil pumper at the pumping downhole fluid at still there being a kind of method and apparatus in the oil field, when especially viscosity is greater than the fluid of 2mPa.s, can make gas in the down-hole, liquid reaches separation problem effectively, the inventor discloses a kind of oil well downhole gas liquid separating method and many glasss of equal flow type gas anchors in Chinese patent 200310117207.9, this invention utilization prolongs the principle of extraction liquid disengaging time, a plurality of Settlement Cups are installed on central tube, by many glasss of shuntings, reduced the flow of single glass of fluid significantly, guaranteed that the decrease speed of fluid in Settlement Cup reduces greatly, thereby made gas, gas-liquid two-phase liquid is separated in Settlement Cup.
Yet, know square being directly proportional of the speed that gas rises and bubble diameter by Stoke's law, 200310117207.9 what adopt in the patent is the Settlement Cup smooth outer surface, its profile is streamline rising type, and minute bubbles evenly distribute along the cup outside, bubble is had a sudden inspiration indirectly can be little, is unfavorable for the minute bubbles polymerization.
Summary of the invention
Main purpose of the present utility model is a kind of many glasss of equal flow type gas anchors of proposing a kind of corrugation-shaped sedimentation cup and being made up of a plurality of corrugation-shaped sedimentation cups, it can improve degassing efficiency, it is minimum that gas content in the liquid that oil well pump sucks is dropped to, and then improve crude output, energy-saving and cost-reducing.
To achieve these goals, the utility model provides a kind of corrugation-shaped sedimentation cup, has a cup, the bottom of cup opening and be provided with one the location step, the positioning step top is provided with a plurality of locating holes, the Settlement Cup bottom is provided with the positioning convex corresponding with locating hole, and the cup outline is corrugated along axis direction and rises.Aforesaid corrugation-shaped sedimentation cup is characterized in that, its outline becomes 30 °～60 ° angles along the angle that axis direction is the corrugated rising with axis direction, and its rib number is 6～18.
The utility model provides a kind of many glasss of equal flow type gas anchors again; mainly comprise a central tube, a plurality of corrugation-shaped sedimentation cup, a plurality of Settlement Cup protective and a flushing valve; on the central tube with the sheathed a plurality of Settlement Cup protectives of matched in clearance; on the central tube between per two Settlement Cup protectives with the sheathed a plurality of corrugation-shaped sedimentation cups of matched in clearance; central tube is evenly being offered a plurality of inlet openings near on the position of each corrugation-shaped sedimentation cup inside bottom; the central tube bottom connects flushing valve, and the cup outline of described corrugation-shaped sedimentation cup is corrugated along axis direction and rises.Aforesaid many glasss of equal flow type gas anchors, described its outline of corrugation-shaped sedimentation cup becomes 30 °～60 ° angles along the angle that axis direction is the corrugated rising with axis direction, and its rib number is 6～18.
Aforesaid many glasss of equal flow type gas anchors, the quantity of described corrugation-shaped sedimentation cup are 30～500.
Aforesaid many glasss of equal flow type gas anchors is characterized in that, the area of passage of inlet opening is 0.2mm
2～7mm
2
By adopting technique scheme, the utlity model has following advantage:
1, many Settlement Cups utilize its outline that is rib shape rising shape to the gas liquid mixture break into portions, make the gas after the separation assemble rapidly, rise, and reach the purpose of effective divided gas flow.
What 2, each suction stroke sucked is the liquid of all Settlement Cup bottoms, the each pumping liquid measure of oil well pump is not more than 1/2nd of Settlement Cup total capacity, and the feed liquor amount approximately equal of all inlet openings, thereby guaranteed that gas carries out fully effectively separating in Settlement Cup.
3, overcome the defective that existing all kinds of gas anchors exist, particularly can solve gas, the liquid separation problem of the fluid of fluids underground viscosity 〉=2mPa.s, make oil well pump suck gas content in the liquid and drop to minimumly, reach and improve pump efficiency, improve crude output, energy saving purposes.For in detail the utility model being described in detail more, enumerate preferred embodiment and description of drawings as back:
Description of drawings
Fig. 1: the positive TV structure cross-sectional schematic of the utility model corrugation-shaped sedimentation cup;
Fig. 2: the plan structure cross-sectional schematic of the utility model corrugation-shaped sedimentation cup;
Fig. 3: the combining structure schematic diagram of two corrugation-shaped sedimentation cups of the utility model;
Fig. 4: the tubular column structure schematic diagram of many glasss of equal flow type gas anchors of the utility model.
The specific embodiment
The utility model is the improvement on Chinese patent application 200310117207.9 technical foundation.
As shown in Figure 1-Figure 3, the utility model at first discloses a kind of corrugation-shaped sedimentation cup 5 that is used for many glasss of equal flow type gas anchors, and it has a cup, and cup top 51 is the polygon prism-shaped, and polygon is star-shaped, and cup bottom 55 is the frustum that correspondingly-shaped closes up downwards; Have a plurality of ribs on the described frustum inside wall, wherein rib and axis direction are 30 °～60 ° angles; Cup top 51 is connected with the rib plane transition of cup bottom 55, and the rib number of cup is 6～18; In view of the above, make the cup outline be corrugated rising form along axis direction.Described bottom of cup opening and be provided with one the location step 52, positioning step 52 tops are provided with a plurality of locating holes 53, Settlement Cup bottom be provided with cooperate with locating hole and etc. the positioning convex 54 of quantity, during the stacked use of a plurality of corrugation-shaped sedimentation cup 5, the positioning convex 54 of adjacent last corrugation-shaped sedimentation cup 5 inserts in the locating hole 53 of corrugation-shaped sedimentation cups 5 down.
As shown in Figure 4, many glasss of equal flow type gas anchors of the present utility model mainly comprise a central tube 7, a plurality of corrugation-shaped sedimentation cup 5, a plurality of Settlement Cup protective 6 and a flushing valve 9.Wherein, on the central tube 7 with the sheathed a plurality of Settlement Cup protectives 6 of matched in clearance, and Settlement Cup protective 6 on carry a tray external diameter greater than the rim of a cup diameter of corrugation-shaped sedimentation cup 5, be the maximum outside diameter of gas anchor; With the sheathed a plurality of corrugation-shaped sedimentation cups 5 of matched in clearance, its installing total quantity can be 30～500 on the central tube 7 between per two Settlement Cup protectives 6; Central tube 7 is evenly being offered 4～10 inlet openings 8 near on the position of each corrugation-shaped sedimentation cup 5 inside bottom, and the area of passage of inlet opening 8 is at 0.2mm
2～7mm
2Between, central tube 7 bottoms connect flushing valve 9.
Adopt technique scheme can implement the utility model, at first a plurality of corrugation-shaped sedimentation cups 5 are sheathed on the central tube 7, and the positioning convex 54 of adjacent last corrugation-shaped sedimentation cup 5 is inserted in the locating hole 53 of following corrugation-shaped sedimentation cup 5; Then, utilize screw that a plurality of Settlement Cup protectives 6 are fixed in the central tube 7, make Settlement Cup protective 6 and central tube 7 matched in clearance; Afterwards, utilize a connector 4 to connect oil well pump 3 and gas anchor, wherein, connector 4 is a short circuit, and the one end is 27/8TBG or 31/2TBG tubing thread, is connected with oil well pump 3, and the other end is the 27/8TBG tubing thread, is connected with gas anchor; At last, said modules is arranged in the sleeve pipe 1.
In the present embodiment, the external diameter of Settlement Cup protective 6 is φ 114mm (general downhole tool maximum outside diameters in the φ 140mm sleeve pipe), and corrugation-shaped sedimentation cup 5 external diameters are φ 110mm, and described flushing valve can be plug.
When guaranteeing the each pumping of oil well pump 3, the liquid that flows into central tubes 7 by inlet opening 8 in oil well pump 3 pumping intermittently, in each corrugation-shaped sedimentation cup 5, there is time enough to separate fully, the feed liquor amount that need make the feed liquor total amount of all inlet openings 8 should be not more than all inlet openings 8 on 1/2nd and the central tube 7 of all corrugation-shaped sedimentation cup 5 total capacities is answered approximately equal, the quantity of above-mentioned area of passage, quantity and corrugation-shaped sedimentation cup 5 that can be by changing inlet opening 8 realizes that concrete grammar is referring to Chinese patent 200310117207.9.
Oil well pump 3 in the course of the work, gas liquid mixture since the stopping of flushing valve 9 can only enter oil well pump 3 by Settlement Cup 5 and inlet opening 8; Because the metering function of inlet opening 8, gas has time enough to separate from gas and liquid mixture, and under the effect on watt rib inclined-plane of corrugation-shaped sedimentation cup 5, minute bubbles are assembled to watt rib center, bubble distributes along the 6-18 bar crest line of watt rib, touch opportunity increases greatly between the bubble, the minute bubbles coalescence is an air pocket, make the rate of climb of gas in liquid improve, therefore, the gas of separating is assembled rapidly and is risen along the Settlement Cup outer wall, and is separated to discharge again behind the oil pipe 2 that is connected with oil well pump 3 and the annular space between the sleeve pipe 1, and the liquid after the separation is through oil well pump 3, oil pipe 2 outputs.
On September 12nd, 2006, many Settlement Cups of the invention equal flow type gas anchor has carried out field trial at First Oil Production Plant of Daqing Oilfield Co., Ltd, and creation data sees the following form before and after the test:
Many Settlement Cups equal flow type gas anchor experimental data table
| Project | Production fluid (t/d) | Casing pressure (MPa) | Submergence (m) | Pump efficiency (%) | Go into the well the time |
| Before adding gas anchor | 48.9 | 1.22 | 351.4 | 40.6 | 2003.10.30 |
| After adding existing contrast gas anchor | 64.0 | 0.8 | 233.5 | 53.1 | 2003.11.7 |
| After adding gas anchor of the present invention | 70.2 | 0.75 | 158.3 | 58.2 | 2006.9.12 |
| Add behind the gas anchor of the present invention and the contrast difference that adds before the gas anchor | +15.1 | -0.42 | -213.1 | 17.6 | |
| Add behind the gas anchor of the present invention and the contrast difference that adds behind the existing contrast gas anchor | 6.2 | -0.05 | -72.5 | +5.1 |
In the last table, existing contrast gas anchor is the inventor's disclosed a kind of many glasss of equal flow type gas anchors in Chinese patent 200310117207.9.As can be known, use novel many Settlement Cups equal flow type gas anchor and former gas anchor contrast pump efficiency to improve 5.1 percentage points from last table, a day production fluid has increased by 6.2 tons, and submergence has reduced 72.5m, and test effect is significantly better than the gas anchor effect before improving.
After adopting improvement back Settlement Cup, because minute bubbles are assembled to watt rib center, bubble is along the 6-18 bar crest line distribution of watt rib, touch opportunity increases greatly between the bubble, and the minute bubbles coalescence is an air pocket, makes the rate of climb of gas in liquid improve, the test well submergence reduces, and pump efficiency improves.
In addition, many Settlement Cups equal flow type gas anchor of the present utility model can use with other artificial lift matched with devices, as screw pump etc., realizes gas-liquid separation, improves pumping efficiency.
In sum, only be preferable exemplifying embodiment of the present utility model, be not in order to limit the utility model; All other do not break away from equivalence of the present utility model to be modified or displacement, all should be contained in the utility model scope.
Claims (7)
1. a corrugation-shaped sedimentation cup has a cup, the bottom of cup opening and be provided with one the location step, the positioning step top is provided with a plurality of locating holes, the Settlement Cup bottom is provided with the positioning convex corresponding with locating hole, it is characterized in that, the cup outline is corrugated along axis direction and rises.
2. corrugation-shaped sedimentation cup as claimed in claim 1 is characterized in that, its outline becomes 30 °～60 ° angles along the angle that axis direction is the corrugated rising with axis direction, and its rib number is 6～18.
3. many glasss of equal flow type gas anchors; mainly comprise a central tube, a plurality of corrugation-shaped sedimentation cup, a plurality of Settlement Cup protective and a flushing valve; on the central tube with the sheathed a plurality of Settlement Cup protectives of matched in clearance; on the central tube between per two Settlement Cup protectives with the sheathed a plurality of corrugation-shaped sedimentation cups of matched in clearance; central tube is evenly being offered a plurality of inlet openings near on the position of each corrugation-shaped sedimentation cup inside bottom; the central tube bottom connects flushing valve; it is characterized in that the cup outline of described corrugation-shaped sedimentation cup is corrugated along axis direction and rises.
4. many glasss of equal flow type gas anchors as claimed in claim 3 is characterized in that, described its outline of corrugation-shaped sedimentation cup becomes 30 °～60 ° angles along the angle that axis direction is the corrugated rising with axis direction, and its rib number is 6～18.
5. as claim 3 or 4 described many glasss of equal flow type gas anchors, it is characterized in that: the quantity of described corrugation-shaped sedimentation cup is 30～500.
6. as claim 3 or 4 described many glasss of equal flow type gas anchors, it is characterized in that the area of passage of inlet opening is 0.2mm
2～7mm
2
7. many glasss of equal flow type gas anchors as claimed in claim 5 is characterized in that, the area of passage of inlet opening is 0.2mm
2～7mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201753263U CN201068792Y (en) | 2007-08-28 | 2007-08-28 | Corrugated settling cup and multi-cup iso-flow rate anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201753263U CN201068792Y (en) | 2007-08-28 | 2007-08-28 | Corrugated settling cup and multi-cup iso-flow rate anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068792Y true CN201068792Y (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201753263U Expired - Fee Related CN201068792Y (en) | 2007-08-28 | 2007-08-28 | Corrugated settling cup and multi-cup iso-flow rate anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068792Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009026787A1 (en) * | 2007-08-28 | 2009-03-05 | Daqing Oilfield Co. Lit | A corrugated settling cup and a multi-cup uniform flux gas anchor |
| CN108854163A (en) * | 2018-07-10 | 2018-11-23 | 中国石油天然气股份有限公司 | A kind of oleophylic filler Gravity Separation oily-water seperating equipment and separation method |
-
2007
- 2007-08-28 CN CNU2007201753263U patent/CN201068792Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009026787A1 (en) * | 2007-08-28 | 2009-03-05 | Daqing Oilfield Co. Lit | A corrugated settling cup and a multi-cup uniform flux gas anchor |
| CN101377126B (en) * | 2007-08-28 | 2013-04-17 | 大庆油田有限责任公司 | Corrugation-shaped sedimentation cup and multiple-cup equal flow type gas anchor |
| CN108854163A (en) * | 2018-07-10 | 2018-11-23 | 中国石油天然气股份有限公司 | A kind of oleophylic filler Gravity Separation oily-water seperating equipment and separation method |
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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: 20080604 Termination date: 20140828 |
|
| EXPY | Termination of patent right or utility model |