CN103291260A - Novel hydraulic jetting device - Google Patents
Novel hydraulic jetting device Download PDFInfo
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- CN103291260A CN103291260A CN2013102608591A CN201310260859A CN103291260A CN 103291260 A CN103291260 A CN 103291260A CN 2013102608591 A CN2013102608591 A CN 2013102608591A CN 201310260859 A CN201310260859 A CN 201310260859A CN 103291260 A CN103291260 A CN 103291260A
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- sleeve pipe
- fracturing tool
- tool section
- injection apparatus
- pipe
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Abstract
The invention relates to a novel hydraulic jetting device. The novel hydraulic jetting device comprises at least one fracturing tool section connected with an oil pipe. Each fracturing tool section comprises a body pipe and a casing pipe. The body pipes comprise upper parts and lower parts, a plurality of nozzles are arranged on the inner walls of the upper parts, the casing pipes are installed on the inner walls of the upper parts and plug the nozzles, a plurality of overflowing windows are formed in the lower parts, a plurality of through holes are formed in the casing pipes, the through holes and the nozzles are mutually staggered when the casing pipes are located at the upper parts, and when the casing pipes move from the upper parts to the lower parts, the overflowing windows and the through holes are communicated. The novel hydraulic jetting device has the advantages that throttling differential pressure is prevented from occurring in the body pipes and the phenomenon that oil gas can not enter the body pipes due to the fact that the nozzles are plugged is avoided.
Description
Technical field
The present invention relates to the oil formation hydraulic fracturing field in the oil exploitation, relate in particular to a kind of novel hydropower injection apparatus.
Background technology
Oil formation hydraulic fracturing generally refers to utilize the principle of liquid pressure transmission, use the pump of high-pressure large-displacement on ground, to have the liquid of certain viscosity to inject to oil reservoir greater than the absorbent ability of oil reservoir, wellbore pressure is increased gradually, when increased pressure when breaking needed pressure greater than oil reservoir, oil reservoir will form crack one or several level or vertical.After the crack formed, along with the continuous injection of liquid, also can constantly extend and expand in the crack, when the speed that liquid injects equates with the absorbent speed of oil reservoir till, this moment is as if cancelling also closure again of external force crack.In order to keep the crack to be in open state, sneak into a certain proportion of solid particle with higher-strength when injecting with fracturing fluid and cook proppant and come supporting crack.Because support through the strictness screening, it has good granularity and intensity, is deposited in the crack, make the flow conductivity that has changed near the stratum of pit shaft, thereby reduced the resistance of liquid by stratum inflow pit shaft.
In correlation technique, after Halliburton's type spraycan was finished pressing crack construction, Halliburton's instrument must trip out, and was replaced by new flow string and carried out oil-gas mining.And adopt the long spraycan of celebrating oil gas institute type, can directly carry out production of hydrocarbons after the pressure.But when adopting this type of spraycan, because hydrocarbon fluids can only enter into by the nozzle of spraycan in the main body pipe, can produce chock pressure difference at the nozzle place during exploitation, influence the oil and gas development effect; Because the injection sectional area is less, stopped up by formation sand production or landwaste easily simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is, at of the prior art in hydrocarbon fluids enters the main body pipe time, produce chock pressure difference influences the oil and gas development effect and owing to the less blocked defective easily of the size of nozzle, provides a kind of main body pipe to be provided with the novel hydropower injection apparatus of overcurrent window at the nozzle place.
The technical scheme that technical solution problem of the present invention adopts is: a kind of novel hydropower injection apparatus is provided, comprise the fracturing tool section that at least one is connected with oil pipe, described each fracturing tool section comprises: main body pipe and sleeve pipe, described main body pipe comprises the upper and lower, the inwall on described top is provided with several nozzles, and described sleeve pipe is installed on the inwall on described top and described several nozzles are blocked; Described bottom is provided with some overcurrent windows, described sleeve pipe is provided with some perforation, described some perforation and described several nozzles all staggered mutually when described sleeve pipe was positioned at top, after described sleeve pipe moved to described bottom by described top, described some overcurrent windows were communicated with described some perforation.
Preferably, the gross area of the overcurrent window on described each fracturing tool section is greater than the cross-sectional area of the described main body pipe of corresponding fracturing tool section.
Preferably, the gross area of the overcurrent window on described each fracturing tool section be corresponding fracturing tool section described main body pipe cross-sectional area 1.2-1.5 doubly.
Preferably, the number of described overcurrent window is 3 to 6.
Preferably, described sleeve pipe (20) upper end is provided with ball seat (21), described ball seat (21) axially is provided with the through hole (211) that passes for ball along described sleeve pipe (20), described fracturing tool section comprises at least two fracturing tool sections, from top to bottom, the described through hole (211) on the described ball seat (21) of each fracturing tool section allows the maximum gauge of the ball pass through to reduce successively.
Preferably, the lower end of described bottom is provided be used to the ledge structure that prevents that described sleeve pipe from deviating from.
Preferably, on each fracturing tool section, the quantity of described nozzle is 4 to 8.
Preferably, the diameter of described nozzle is 4-8mm.
Preferably, when described sleeve pipe was positioned at described top, described sleeve pipe and described main body pipe locked by pin; When described sleeve pipe was subjected to certain downward active force, described pin disconnected, and described sleeve pipe slides into described bottom by described top.
Novel hydropower injection apparatus provided by the invention compared with prior art has following beneficial effect: owing to be provided with the overcurrent window and be arranged at the perforation that this overcurrent window cooperates at sleeve pipe at the main body pipe, in the oil-gas mining process, can not produce chock pressure difference in the main body pipe and influence the oil-gas mining effect, and have and to prevent from being plugged the effect that the oil gas that causes can't enter the main body pipe because of nozzle.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is novel hydropower injection apparatus of the present invention structural representation in one embodiment;
Fig. 2 for novel hydropower injection apparatus of the present invention embodiment illustrated in fig. 1 in, in a fracturing tool section, the structural representation when sleeve pipe is positioned at top;
Fig. 3 for novel hydropower injection apparatus of the present invention embodiment illustrated in fig. 1 in, in a fracturing tool section, the structural representation when sleeve pipe is positioned at the bottom.
The specific embodiment
Fig. 1 shows the novel hydropower injection apparatus in the one embodiment of the invention, and it is applied to the fracturing technology in the oil-gas mining.This novel hydropower injection apparatus can comprise several fracturing tool sections that are connected with petroleum pipeline, respectively some sections oil reservoirs are carried out pressing crack construction.As shown in Figures 1 to 3, each fracturing tool section comprises: main body pipe 10 and the sleeve pipe 20 that is arranged in this main body pipe 10.Main body pipe 10 comprises top 11 and bottom 12, and wherein, top 11 is provided with several nozzles 111, and bottom 12 is provided with several overcurrent windows 121, and the lower end of bottom 12 is provided be used to the ledge structure 122 that prevents that sleeve pipe 20 from deviating from.Sleeve pipe 20 upper ends arrange ball seat 21, and sleeve pipe 20 sidewalls are provided with some perforation 22, and the shape of perforation 22 and size and overcurrent window 121 are approximate.Understandable, perforation 22 and overcurrent window 121 are all greater than the jet of nozzle 111.
These several nozzles 111 are used for producing the jetting effect when pressing crack construction, realize the jetting pressing crack construction; Its principle and structure with nozzle of the prior art is identical, so carefully do not state at this.Preferably, the quantity of nozzle 111 is 4 to 8, and diameter is 4-8mm.Certainly, its quantity and diameter are not limited to this, can change according to actual needs.
These several overcurrent windows 121 are used for matching with several perforation 22 on the sleeve pipe 20, to form flow channels.In each fracturing tool section, when sleeve pipe 20 moves to bottom 12, these some overcurrent windows 121 and these some perforation 22 over against.After the existence of overcurrent window 121 makes that pressure break work is finished, this novel hydropower injection apparatus need not be taken out and to begin follow-up oil extraction operation, oil can enter into main body pipe 10 from overcurrent window 121, further enter into oil pipe, can satisfy in the oil recovery process for discharge value and anti-blocking demand.
In order to prevent chock pressure difference, and overcurrent window 121 told the sand plug plug by the stratum, and the area of overcurrent window 121 arranges greatlyyer.In a fracturing tool section, the gross area of overcurrent window 121 is greater than the cross-sectional area of the main body pipe 10 in this fracturing tool section, and preferably, the gross area of this overcurrent window 121 is 1.2-1.5 times of cross-sectional area.
This novel hydropower injection apparatus adopts a kind of button-type among 51/2 " LTC, 41/2 " LTC, 31/2 " EUE and the 27/8 " EUE to be connected with oil pipe.Can certainly change according to actual needs.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (9)
1. novel hydropower injection apparatus, comprise the fracturing tool section that at least one is connected with oil pipe, described each fracturing tool section comprises: main body pipe (10) and sleeve pipe (20), described main body pipe (10) comprises top (11) and bottom (12), the inwall on described top (11) is provided with several nozzles (111), and described sleeve pipe (20) is installed on the inwall of described top (11) and described several nozzles (111) are blocked; It is characterized in that, described bottom (12) is provided with some overcurrent windows (121), described sleeve pipe (20) is provided with some perforation (22), described some perforation (22) were all staggered mutually with described several nozzles (111) when described sleeve pipe (20) was positioned at top (11), after described sleeve pipe (20) moved to described bottom (12) by described top (11), described some overcurrent windows (121) were communicated with described some perforation (22).
2. novel hydropower injection apparatus according to claim 1 is characterized in that, the gross area of the overcurrent window (121) on described each fracturing tool section is greater than the cross-sectional area of the described main body pipe (10) of corresponding fracturing tool section.
3. novel hydropower injection apparatus according to claim 2 is characterized in that, the gross area of the overcurrent window (121) on described each fracturing tool section be corresponding fracturing tool section described main body pipe (10) cross-sectional area 1.2-1.5 doubly.
4. novel hydropower injection apparatus according to claim 3 is characterized in that, the number of described overcurrent window (121) is 3 to 6.
5. according to each described novel hydropower injection apparatus of claim 1 to 4, it is characterized in that, described sleeve pipe (20) upper end is provided with ball seat (21), described ball seat (21) axially is provided with for the through hole (211) that passes of ball (100) along described sleeve pipe (20), described fracturing tool section comprises at least two fracturing tool sections, from top to bottom, the described through hole (211) on the described ball seat (21) of each fracturing tool section allows the maximum gauge of the ball (100) that passes through to reduce successively.
6. according to each described novel hydropower injection apparatus of claim 1 to 4, it is characterized in that the lower end of described bottom (12) is provided be used to the ledge structure (122) that prevents that described sleeve pipe (10) from deviating from.
7. according to each described novel hydropower injection apparatus of claim 1 to 4, it is characterized in that on each fracturing tool section, the quantity of described nozzle (111) is 4 to 8.
8. according to each described novel hydropower injection apparatus of claim 1 to 4, it is characterized in that the diameter of described nozzle (111) is 4-8mm.
9. novel hydropower injection apparatus according to claim 1 is characterized in that, when described sleeve pipe (20) was positioned at described top (11), described sleeve pipe (20) locked by pin with described main body pipe (10); When described sleeve pipe (20) was subjected to certain downward active force, described pin disconnected, and described sleeve pipe (20) slides into described bottom (12) by described top (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260859.1A CN103291260B (en) | 2013-06-27 | 2013-06-27 | Hydraulic jeting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260859.1A CN103291260B (en) | 2013-06-27 | 2013-06-27 | Hydraulic jeting device |
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| Publication Number | Publication Date |
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| CN103291260A true CN103291260A (en) | 2013-09-11 |
| CN103291260B CN103291260B (en) | 2016-02-17 |
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| CN201310260859.1A Active CN103291260B (en) | 2013-06-27 | 2013-06-27 | Hydraulic jeting device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070284106A1 (en) * | 2006-06-12 | 2007-12-13 | Kalman Mark D | Method and apparatus for well drilling and completion |
| US20090032255A1 (en) * | 2007-08-03 | 2009-02-05 | Halliburton Energy Services, Inc. | Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| CN201301694Y (en) * | 2008-10-16 | 2009-09-02 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Hydraulic jet pump separate zone oil production process pipe string |
| CN101979823A (en) * | 2010-10-14 | 2011-02-23 | 中国石油天然气股份有限公司 | Hydraulic jet perforation, fracturing and gas lift liquid drainage integrated technical pipe column |
-
2013
- 2013-06-27 CN CN201310260859.1A patent/CN103291260B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070284106A1 (en) * | 2006-06-12 | 2007-12-13 | Kalman Mark D | Method and apparatus for well drilling and completion |
| US20090032255A1 (en) * | 2007-08-03 | 2009-02-05 | Halliburton Energy Services, Inc. | Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| CN201301694Y (en) * | 2008-10-16 | 2009-09-02 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Hydraulic jet pump separate zone oil production process pipe string |
| CN101979823A (en) * | 2010-10-14 | 2011-02-23 | 中国石油天然气股份有限公司 | Hydraulic jet perforation, fracturing and gas lift liquid drainage integrated technical pipe column |
Non-Patent Citations (2)
| Title |
|---|
| 王玉忠等: "《射孔-压裂-水力喷射泵排液一体化技术》", 《油气井测试》 * |
| 范微等: "《井下水力喷射压裂工具典型结构及应用》", 《石油钻探技术》 * |
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| Publication number | Publication date |
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| CN103291260B (en) | 2016-02-17 |
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Effective date of registration: 20170109 Address after: Chen Jiang Street 516006 Guangdong province Huizhou City Zhongkai high tech Zone Hui Yuan Road No. 10 Building No. Patentee after: Top energy technology (Huizhou) Co., Ltd. Address before: 518054 Guangdong city of Shenzhen province Nanshan District Hyde three days of the Central Business Plaza, 7 floor Patentee before: Petro-king Oilfield Technology Co., Ltd. |