CN104879096A - Oil production device for sidetracked wells - Google Patents
Oil production device for sidetracked wells Download PDFInfo
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- CN104879096A CN104879096A CN201510306136.XA CN201510306136A CN104879096A CN 104879096 A CN104879096 A CN 104879096A CN 201510306136 A CN201510306136 A CN 201510306136A CN 104879096 A CN104879096 A CN 104879096A
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Abstract
The invention discloses an oil production device for sidetracked wells. The oil production device comprises an oil pipe, an inner pipe and a sand carrying and draining oil pump. The inner pipe is penetratingly arranged in the oil pipe, the sand carrying and draining oil pump comprises an inner pump barrel and an outer pump barrel, and the inner pump barrel is penetratingly arranged in the outer pump barrel. The barrel wall of the sand carrying and draining oil pump is provided with a pump inlet to allow liquid outside the sand carrying and draining oil pump to enter the inner pump barrel. The wall of the inner pump barrel is provided with a mixed liquid outlet to allow liquid in the inner pump barrel to enter a passage between the inner pump barrel and the outer pump barrel. The oil pipe is connected with the outer pump barrel, the inner pipe is connected with the inner pump barrel, and after power liquid is inputted into the inner pump barrel from the inner pipe, the power liquid and oil entering from the pump inlet are mixed to form the mixed liquid, and the mixed liquid enters the passage between the inner pump barrel and the outer pump barrel through the mixed liquid outlet and then flows out of the device through a passage between the oil pipe and the inner pipe. The oil production device for the tracked wells has the advantages that the technical problem of proneness to sand jamming and sand burying of sidetracked well shafts in the prior art is solved, sand carrying capacity of the oil production device is improved, and risks of sand jamming and sand burying are effectively reduced.
Description
Technical field
The present invention relates to technical field of petroleum extraction, particularly relate to a kind of sidetracked hole extracting device of oil.
Background technology
Sidetracked hole is the re-using of oil well abandoned well, it is a kind of method reducing development cost input, it is the pit shaft of the well utilizing abandoned well or do not have value, close to pit shaft below the shutoff of oil reservoir position, to window in side again punching, and drilling well is to object oil reservoir position, thus form new pit shaft below side-drilling windowing position.
But the internal diameter of the new pit shaft below sidetracked hole side-drilling windowing position is more much smaller than general pit shaft internal diameter, and sidetracked hole defines the larger flex point of a hole deviation rate at position of windowing, and this all brings very large difficulty to production, especially sand control treatment.Specifically, sidetracked hole due to pit shaft internal diameter little, general purpose tool or tubing string can not enter in the pit shaft of sidetracking formation, conventional sucker-rod pumping process well lower tubular column is generally produced, namely more than side-drilling windowing point, for sidetracked hole down to straight well section, due at side-drilling windowing point with lower portion, general hole deviation degree is comparatively large, and what have is close to as horizontal segment, therefore very easily occurs the situation of sand buried regions or sand bridge at this well section sand setting.
That is, in prior art, the internal diameter of sidetracked hole pit shaft is little, and gradient is large, easily occurs the technical problem that sand card sand buries.
Summary of the invention
The present invention, by providing a kind of sidetracked hole extracting device of oil, solves in prior art, and the internal diameter of sidetracked hole pit shaft is little, and gradient is large, and what cause easily occurs the technical problem that sand card sand buries.
The embodiment of the present application provides following technical scheme:
A kind of sidetracked hole extracting device of oil, comprising:
Oil pipe;
Interior pipe, described interior pipe is arranged in described oil pipe;
Sand carrying oil production pump, described sand carrying oil production pump comprises pump urceolus and is arranged in the pump inner core in described pump urceolus; The barrel of described sand carrying oil production pump offers into pump intake, described pump inner core can be entered to make the liquid outside described sand carrying oil production pump; The barrel of described pump inner core offers mixture export, passage between described pump urceolus and described pump inner core can be entered to make the liquid of described pump inner core;
Wherein, described oil pipe is connected with described pump urceolus, described interior pipe is connected with described pump inner core, to make after power fluid inputs described pump inner core from described interior pipe, described power fluid with from described enter the oil that enters of pump intake be mixed to form mixed liquor, described mixed liquor enters the passage between described pump urceolus and described pump inner core by described mixture export under the drive of described power fluid, then flows out described device by the passage between described oil pipe and described interior pipe.
Optionally, described sand carrying oil production pump also comprises: be arranged at the Unit injector on the inwall of described pump inner core and pump trunnion; Wherein, along the direction of first end to the second end of described sand carrying oil production pump, described Unit injector, described in enter pump intake, described pump trunnion and described mixture export and set gradually, strengthen after power to make the power fluid inputting described pump inner core from described interior pipe through described Unit injector, with from described enter the oil that enters of pump intake be mixed to form mixed liquor, again through the guiding of described pump trunnion, flow into the passage between described pump urceolus and described pump inner core from described mixture export; Wherein, described first end is the end that described sand carrying oil production pump is connected with described oil pipe, and described second end is the end relative with described first end.
Optionally, described device also comprises: guide head, described guide head is connected with the second end of described sand carrying oil production pump, the oil reservoir that need gather is entered to guide described sand carrying oil production pump, wherein, described second end is the end relative with first end, and described first end is the end that described sand carrying oil production pump is connected with described oil pipe.
Optionally, described sand carrying oil production pump and described guide head pass through screwed connection.
Optionally, described oil pipe and described pump urceolus pass through screwed connection.
Optionally, described interior pipe connects for contacting with described pump inner core, and described interior pipe inserts in described pump inner core.
Optionally, the external diameter of described oil pipe is 75 ~ 80mm, the internal diameter of described oil pipe is 55 ~ 60mm, and the external diameter of described sand carrying oil production pump is 75 ~ 80mm.
Optionally, one end of described oil pipe is positioned at well head; The other end of described oil pipe is connected with described sand carrying oil production pump; Described sand carrying oil production pump is positioned at the oil reservoir that need gather.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
1, the sidetracked hole extracting device of oil that provides of the embodiment of the present application, by interior pipe input power liquid to pump inner core, to provide power, drive and enter passage between described pump urceolus and described pump inner core from entering oil that pump intake enters by described mixture export, then flow out well head by the passage between described oil pipe and described interior pipe.Namely improve the flow velocity of liquid in pit shaft by power fluid, and then improve the prop-carrying capacity of extracting device of oil, ensure that the quick discharge of sand, effectively reduce the risk that sand buries sand card, and then ensure that the continuous seepage ability of stripper well.
2, the sidetracked hole extracting device of oil that provides of the embodiment of the present application, the inwall of described pump inner core arranges Unit injector and pump trunnion, enhanced the flowing velocity of power fluid by Unit injector, guide mixed liquor to flow out by pump trunnion, further enhancing the prop-carrying capacity of this extracting device of oil.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structure chart of sidetracked hole extracting device of oil in the embodiment of the present application;
Fig. 2 is sand carrying oil production pump structure figure in the embodiment of the present application;
Fig. 3 is the oil recovery schematic diagram of sidetracked hole extracting device of oil in the embodiment of the present application;
Fig. 4 is the operating diagram of sand carrying oil production pump in the embodiment of the present application.
Detailed description of the invention
The present invention is by providing a kind of sidetracked hole extracting device of oil, and the internal diameter solving sidetracked hole pit shaft in prior art is little, and gradient is large, and what cause easily occurs the technical problem that sand card sand buries.Improve the prop-carrying capacity of extracting device of oil, effectively reduce the risk that sand buries sand card, and then ensure that the continuous seepage ability of stripper well.
For solving the problems of the technologies described above, the embodiment of the present application provides the general thought of technical scheme as follows:
A kind of sidetracked hole extracting device of oil, comprising:
Oil pipe;
Interior pipe, described interior pipe is arranged in described oil pipe;
Sand carrying oil production pump, described sand carrying oil production pump comprises pump urceolus and is arranged in the pump inner core in described pump urceolus; The barrel of described sand carrying oil production pump offers into pump intake, described pump inner core can be entered to make the liquid outside described sand carrying oil production pump; The barrel of described pump inner core offers mixture export, passage between described pump urceolus and described pump inner core can be entered to make the liquid of described pump inner core;
Wherein, described oil pipe is connected with described pump urceolus, described interior pipe is connected with described pump inner core, to make after power fluid inputs described pump inner core from described interior pipe, described power fluid with from described enter the oil that enters of pump intake be mixed to form mixed liquor, described mixed liquor enters the passage between described pump urceolus and described pump inner core by described mixture export under the drive of described power fluid, then flows out described device by the passage between described oil pipe and described interior pipe.
Can be found out by foregoing, described sidetracked hole extracting device of oil passes through interior pipe input power liquid to pump inner core, to provide power, drive and enter passage between described pump urceolus and described pump inner core from entering oil that pump intake enters by described mixture export, then flow out well head by the passage between described oil pipe and described interior pipe.Namely improve the flow velocity of liquid in pit shaft by power fluid, and then improve the prop-carrying capacity of extracting device of oil, ensure that the quick discharge of sand, effectively reduce the risk that sand buries sand card, and then ensure that the continuous seepage ability of stripper well.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the embodiment of the present application and embodiment can combine mutually.
In the present embodiment, provide a kind of sidetracked hole extracting device of oil, please refer to Fig. 1, Fig. 1 is the structure chart of sidetracked hole extracting device of oil in the embodiment of the present application, and described device comprises:
Oil pipe 1;
Interior pipe 2, described interior pipe 2 is arranged in described oil pipe 1;
Sand carrying oil production pump 3, the pump inner core 32 that described sand carrying oil production pump 3 comprises pump urceolus 31 and is arranged in described pump urceolus 31; The barrel of described sand carrying oil production pump 3 offers into pump intake 33, described pump inner core 32 can be entered to make the liquid outside described sand carrying oil production pump 3; The barrel of described pump inner core 32 offers mixture export 34, passage between described pump urceolus 31 and described pump inner core 32 can be entered to make the liquid of described pump inner core 32;
Wherein, described oil pipe 1 is connected with described pump urceolus 31, described interior pipe 2 is connected with described pump inner core 32, to make after power fluid inputs described pump inner core 32 from described interior pipe 2, described power fluid with from described enter the oil that enters of pump intake 33 be mixed to form mixed liquor, described mixed liquor enters the passage between described pump urceolus and described pump inner core by described mixture export 34 under the drive of described power fluid, then flows out described device by the passage between described oil pipe 1 and described interior pipe 2.
In the embodiment of the present application, described sidetracked hole extracting device of oil adopts the oil recovery power of pressurization as sand carrying oil production pump 3 of power fluid, and without the need to pump power sources such as roofbolts.
Below by the installation of the structure and described sidetracked hole extracting device of oil of introducing described sidetracked hole extracting device of oil respectively and use.
First, the structure of described sidetracked hole extracting device of oil is introduced.
As shown in Figure 1, oil pipe 1 extends in oil reservoir 101 from the perforate of former pit shaft side or close to oil reservoir 101, interior pipe 2 wears with described oil pipe 1; The external diameter of described interior pipe 2 is less than the internal diameter of described oil pipe 1, to make there is fluid passage between described interior pipe 2 and described oil pipe 1.
In the embodiment of the present application, one end of oil pipe 1 connects the pump urceolus 31 of sand carrying oil production pump 3, and the other end is positioned at well head; One end of interior pipe 2 connects the pump inner core 32 of sand carrying oil production pump 3, and the other end is positioned at well head; Sand carrying oil production pump 3 is by oil pipe 1 and interior pipe 2, deeply inner to oil reservoir 101.
In specific implementation process, described oil pipe 1 passes through screwed connection with described pump urceolus 31.Certainly, described in specific implementation process, oil pipe 1 also can be connected for Interference contact with described pump urceolus 31, or welding, and this is not restricted.
In specific implementation process, described interior pipe 2 connects for contacting with described pump inner core 31, and described interior pipe 2 inserts in described pump inner core 31.Certainly, also can be that described pump inner core 31 inserts in described interior pipe 2 in specific implementation process, or described interior pipe 2 be screwed connection with described pump inner core 31, or described interior pipe 2 with described pump inner core 31 for welding, this is not restricted.
Further, please refer to Fig. 2, Fig. 2 is sand carrying oil production pump structure figure in the embodiment of the present application.As shown in Figure 2, interior pipe 2 is communicated with pump inner core 32, and pump inner core 32 passes through to be communicated with into pump intake 33 with producing horizon, and pump inner core 32 is communicated with by mixture export 34 with pump urceolus 31; Pump urceolus 31 is communicated with oil pipe 1.
Further, as shown in Figure 2, in order to strengthen the flow velocity of described power fluid, described sand carrying oil production pump 3 also comprises:
Be arranged at the Unit injector 201 on the inwall of described pump inner core 32 and pump trunnion 202;
Wherein, along the direction of first end to the second end of described sand carrying oil production pump 3, described Unit injector 201, described in enter pump intake 33, described pump trunnion 202 and described mixture export 34 and set gradually, to make to input the power fluid of described pump inner core 32 after described Unit injector 201 strengthens power from described interior pipe 2, with from described enter the oil that enters of pump intake 33 be mixed to form mixed liquor, again through the guiding of described pump trunnion 202, flow into the passage between described pump urceolus 31 and described pump inner core 32 from described mixture export 34; Wherein, described first end is the end that described sand carrying oil production pump 3 is connected with described oil pipe 1, and described second end is the end relative with described first end.
Specifically, the inwall of described pump inner core 32 arranges Unit injector 201 and pump trunnion 202, is enhanced the flowing velocity of power fluid by Unit injector 201, guide mixed liquor to flow out by pump trunnion 202, further enhancing the prop-carrying capacity of this extracting device of oil.
In the embodiment of the present application, as shown in Figure 1, described device also comprises:
Guide head 4, described guide head 4 is connected with the second end of described sand carrying oil production pump 3, to guide described sand carrying oil production pump 3 to enter the oil reservoir that need gather, wherein, described second end is the end relative with first end, and described first end is the end that described sand carrying oil production pump 3 is connected with described oil pipe 1.
In specific implementation process, described sand carrying oil production pump 3 passes through screwed connection with described guide head 4.Certainly, described sand carrying oil production pump 3 and described guide head 4 also can connect for contacting or weld, and this is not restricted.
In the embodiment of the present application, in order to when oil pipe caliber is less, sand and oil recovery ability are taken in guarantee, can arrange: the external diameter of described oil pipe 1 is 75 ~ 80mm, the internal diameter of described oil pipe 1 is 55 ~ 60mm, and the external diameter of described sand carrying oil production pump 3 is 75 ~ 80mm.Preferably, the external diameter of described oil pipe 1 is 78mm, the internal diameter of described oil pipe 1 is 58mm, and the external diameter of described sand carrying oil production pump 3 is 78mm.
In the embodiment of the present application, in order to strengthen the flow velocity of power fluid further, with the prop-carrying capacity of intensifier, can arrange described interior pipe 2 the one end being positioned at described well head can with for carrying the power set of described power fluid to be connected; Pipe 2 in power fluid inputs by described power set pressurization, to increase the flow velocity of the power fluid entering pump inner core 32.
In specific implementation process, supervising device can also be set at well head, to pass through the import and export liquid measure of monitoring liquid level, well head sand production rate, well head in process of production, rationally carry out water mixing measure, stablize initial production pressure reduction, slow down the speed of shaking out, cut down sand and buried risk, formation damage, ensure that low liquid producing well continuous seepage and stronger prop-carrying capacity.
Next, the use of described sidetracked hole extracting device of oil is introduced.
When needs carry out sidetracked hole oil recovery, first block the lower end of former producing well, then burrow to oil reservoir 101 at the lateral opening hole of former producing well.
Again by mounted sidetracked hole extracting device of oil along the downward direction of guide head 4, insert along the new hole driveed in side, enter in oil reservoir 101 to make sand carrying oil production pump 3;
When needs recover the oil, specifically please refer to Fig. 3 and Fig. 4, Fig. 3 is the oil recovery schematic diagram of sidetracked hole extracting device of oil in the embodiment of the present application; Fig. 4 is the operating diagram of sand carrying oil production pump in the embodiment of the present application.In Fig. 3 and Fig. 4, the arrow being denoted as B represents the flow direction of power fluid, and the arrow being denoted as C represents the flow direction of oil, and the arrow being denoted as D represents the flow direction of power fluid and the mixed mixed liquor of oil.
As shown in Figure 3 and Figure 4, by power set, power fluid is pressed into Inner pipe 2, power fluid flows in the pump inner core 32 of sand carrying oil production pump 3 by interior pipe 2 under pressure, and form mixed liquor with from entering the oil that pump intake 33 enters, mixed liquor flows into the circular passage between described pump urceolus 31 and described pump inner core 32 from mixture export 34 under pressure, then flows out well head by the circular passage between interior pipe 2 and oil pipe 1.
According to test, after the sidetracked hole extracting device of oil that application the embodiment of the present application provides, the pump detection and workover cycle of sidetracked hole obviously extends, pump sand washing need not be frequently examined because of shaking out, there will not be the problem of sand card tubing string, even if there is the situation of sand pipe laying post, also there will not be the situation of the stuck tubing string of sand, effectively ensure that the continuous seepage ability of stripper well.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
1, the sidetracked hole extracting device of oil that provides of the embodiment of the present application, by interior pipe input power liquid to pump inner core, to provide power, drive and enter passage between described pump urceolus and described pump inner core from entering oil that pump intake enters by described mixture export, then flow out well head by the passage between described oil pipe and described interior pipe.Namely improve the flow velocity of liquid in pit shaft by power fluid, and then improve the prop-carrying capacity of extracting device of oil, ensure that the quick discharge of sand, effectively reduce the risk that sand buries sand card, and then ensure that the continuous seepage ability of stripper well.
2, the sidetracked hole extracting device of oil that provides of the embodiment of the present application, the inwall of described pump inner core arranges Unit injector and pump trunnion, enhanced the flowing velocity of power fluid by Unit injector, guide mixed liquor to flow out by pump trunnion, further enhancing the prop-carrying capacity of this extracting device of oil
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a sidetracked hole extracting device of oil, is characterized in that, comprising:
Oil pipe;
Interior pipe, described interior pipe is arranged in described oil pipe;
Sand carrying oil production pump, described sand carrying oil production pump comprises pump urceolus and is arranged in the pump inner core in described pump urceolus; The barrel of described sand carrying oil production pump offers into pump intake, described pump inner core can be entered to make the liquid outside described sand carrying oil production pump; The barrel of described pump inner core offers mixture export, passage between described pump urceolus and described pump inner core can be entered to make the liquid of described pump inner core;
Wherein, described oil pipe is connected with described pump urceolus, described interior pipe is connected with described pump inner core, to make after the power fluid of high pressure enters described pump inner core from described interior tube pump, described power fluid with from described enter the oil that enters of pump intake be mixed to form mixed liquor, described mixed liquor enters the passage between described pump urceolus and described pump inner core by described mixture export under the drive of described power fluid, then flows out described device by the passage between described oil pipe and described interior pipe.
2. sidetracked hole extracting device of oil as claimed in claim 1, it is characterized in that, described sand carrying oil production pump also comprises:
Be arranged at the Unit injector on the inwall of described pump inner core and pump trunnion;
Wherein, along the direction of first end to the second end of described sand carrying oil production pump, described Unit injector, described in enter pump intake, described pump trunnion and described mixture export and set gradually, strengthen after power to make the described power fluid inputting described pump inner core from described interior pipe through described Unit injector, with from described enter the oil that enters of pump intake be mixed to form mixed liquor, again through the guiding of described pump trunnion, flow into the passage between described pump urceolus and described pump inner core from described mixture export; Wherein, described first end is the end that described sand carrying oil production pump is connected with described oil pipe, and described second end is the end relative with described first end.
3. sidetracked hole extracting device of oil as claimed in claim 1, it is characterized in that, described device also comprises:
Guide head, described guide head is connected with the second end of described sand carrying oil production pump, to guide described sand carrying oil production pump to enter the oil reservoir that need gather, wherein, described second end is the end relative with first end, and described first end is the end that described sand carrying oil production pump is connected with described oil pipe.
4. sidetracked hole extracting device of oil as claimed in claim 3, it is characterized in that, described sand carrying oil production pump and described guide head pass through screwed connection.
5. sidetracked hole extracting device of oil as claimed in claim 1, it is characterized in that, described oil pipe and described pump urceolus pass through screwed connection.
6. sidetracked hole extracting device of oil as claimed in claim 1, it is characterized in that, described interior pipe connects for contacting with described pump inner core, and described interior pipe inserts in described pump inner core.
7. sidetracked hole extracting device of oil as claimed in claim 1, it is characterized in that, the external diameter of described oil pipe is 75 ~ 80mm, the internal diameter of described oil pipe is 55 ~ 60mm, the external diameter of described sand carrying oil production pump is 75 ~ 80mm.
8. the sidetracked hole extracting device of oil as described in as arbitrary in claim 1 ~ 7, it is characterized in that, one end of described oil pipe is positioned at well head; The other end of described oil pipe is connected with described sand carrying oil production pump; Described sand carrying oil production pump is positioned at the oil reservoir that need gather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306136.XA CN104879096A (en) | 2015-06-05 | 2015-06-05 | Oil production device for sidetracked wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306136.XA CN104879096A (en) | 2015-06-05 | 2015-06-05 | Oil production device for sidetracked wells |
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| Publication Number | Publication Date |
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| CN104879096A true CN104879096A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510306136.XA Pending CN104879096A (en) | 2015-06-05 | 2015-06-05 | Oil production device for sidetracked wells |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106401538A (en) * | 2016-11-09 | 2017-02-15 | 山东祺龙海洋石油钢管股份有限公司 | Drainage device of electric oil-submerged reciprocating pump on oil-gas well |
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Application publication date: 20150902 |