CN210977316U - Filter structure for purifying tail end in automatic temporary plugging diverting agent injection equipment - Google Patents
Filter structure for purifying tail end in automatic temporary plugging diverting agent injection equipment Download PDFInfo
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- CN210977316U CN210977316U CN201921036515.1U CN201921036515U CN210977316U CN 210977316 U CN210977316 U CN 210977316U CN 201921036515 U CN201921036515 U CN 201921036515U CN 210977316 U CN210977316 U CN 210977316U
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Abstract
The utility model relates to a filtering structure of a purification end in automatic temporary plugging diverter injection equipment, a storage pipe and a comb-shaped water joint, wherein the comb-shaped water joint is communicated and arranged below the storage pipe; the storage pipe is communicated between the material injection machine and the main pipeline, and a switch valve is arranged at the connection part; the comb-shaped water joint comprises a bobbin, a comb-shaped filter body is fixed at the upper pipe orifice of the bobbin, and the upper surface of the comb-shaped filter body is arc-shaped and the cambered surface of the comb-shaped filter body is matched with the inner wall of the storage pipe; the comb-shaped filter body is provided with a plurality of parallel filter gaps which are comb-shaped on the comb-shaped filter body when viewed from top to bottom; the direction of the filtering gap is consistent with the flow direction of the temporary plugging agent in the storage pipe. The utility model discloses the beneficial effect who reaches is: has no obstruction and is convenient to clean.
Description
Technical Field
The utility model relates to an oil development technical field, especially purify terminal filtration in the automatic injection apparatus of stifled steering agent temporarily.
Background
In the process of oil exploitation, not only is exploitation carried out in a certain direction, but also exploitation is carried out in a plurality of circumferential directions, namely, after crude oil in an old crack control area is completely exploited along with the extension of exploitation degree, temporary blocking, steering and repeated fracturing need to be implemented, a new layer is opened in the longitudinal direction and the plane, and crude oil outside the old crack control area is exploited.
When new fracturing is carried out, old cracks are generally blocked by adopting a chemical temporary plugging agent, and new cracks are pressed open. The temporary plugging agent can realize pressure blocking in the horizontal maximum stress direction and change the crack initiation position of the crack, and can realize new crack opening and crack steering in repeated fracturing; compared with the conventional sand filling of the original fracture of the repeated fracturing, the manual temporary blocking of the diversion fracturing opens a new fracture instead of refilling and extending the original fracture, so that the flow guiding capacity is high, the opportunities of communicating an unused oil-gas layer and changing the fluid seepage displacement rule of the oil-gas layer are increased, the oil displacement efficiency of injected water is improved, and the yield increasing effect is high.
Due to the benefits of manual temporary plugging realized by using the temporary plugging agent, the temporary plugging agent is more and more popularized and applied, but the process of injecting the temporary plugging agent by the companies is very original. This is caused by the fact that the temporary plugging agent is connected to the main pipe through an auxiliary pipe, and when the temporary plugging agent is injected, the temporary plugging agent is injected into the oil well together with water in the pipe; at the interval time quantum of injecting into next time apart from, because temporary plugging agent is graininess and meets water and can melt gradually, consequently can be stained with temporary plugging agent that once injected into on the wall of supplementary pipeline, and these temporary plugging agent that glue on the wall can melt gradually and then paste on the wall completely, and when injecting next time, graininess temporary plugging agent can glue on these temporary plugging agent that melt, thereby let the interior diameter space in the auxiliary tube reduce gradually, be unfavorable for the injection of temporary plugging agent, and the actual temporary plugging agent who injects into the oil well has the difference with the theory, influence the fracturing effect.
In order to avoid the situation, the existing mining company adopts a manual replacement method, namely, after the temporary plugging agent is injected once, the auxiliary pipe is manually replaced once, but the time required for manually replacing the auxiliary pipe is long, and the auxiliary pipe is heavy, so that the replacement is very inconvenient, the manual labor intensity is high, and the replacement work efficiency is low; if the temporary plugging agent is injected next time, if the auxiliary pipe is not replaced, the injection must be performed until the replacement is completed, thereby affecting the overall mining efficiency.
Based on this, this company has developed an automatic injection equipment for stifled diverter temporarily, realizes automatic the injection to reduce intensity of labour, and practice thrift the change time, improve and change efficiency, need not to wait for once more when injecting next, thereby improve exploitation efficiency. The filtering structure is needed in the equipment developed by the company, but the general filtering structure is easy to cause the temporary plugging agent to be adhered to the filter screen, so that the temporary plugging agent is continuously gathered; based on this, a filter structure satisfying the characteristics of the temporary plugging agent is specially designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide the terminal filtration of purification in the automatic injection apparatus of stifled diverter of non-hindrance, the clearance of being convenient for.
The purpose of the utility model is realized through the following technical scheme: the filtering structure for temporarily blocking the purification tail end of the automatic steering agent injection equipment comprises a storage pipe and a comb-shaped water joint, wherein the comb-shaped water joint is communicated and arranged below the storage pipe;
the storage pipe is communicated between the material injection machine and the main pipeline, and a switch valve is arranged at the connection part;
the comb-shaped water joint comprises a bobbin, a comb-shaped filter body is fixed at an upper pipe orifice of the bobbin, and the upper surface of the comb-shaped filter body is arc-shaped and the cambered surface of the comb-shaped filter body is matched with the inner wall of the storage pipe;
the comb-shaped filter body is provided with a plurality of parallel filter gaps, and the filter gaps are comb-shaped on the comb-shaped filter body when viewed from top to bottom;
the direction of the filtering gap is consistent with the flow direction of the temporary plugging agent in the storage pipe.
And when the filtering gap is seen from top to bottom, one end of the filtering gap is cracked, the other end of the filtering gap is blocked, and one end of the blocking gap is positioned in the flowing direction of the temporary plugging agent.
The number of the filter gaps in the comb-shaped filter body is nine.
The storage pipe, the main pipeline and the comb-shaped water joint are connected through a tee joint.
The bobbin is a straight tube, the lower part of the bobbin is provided with a shoulder, a corresponding annular platform is arranged at the pipe orifice of the lower branch pipe of the three-way piece, and the outer diameter of the bobbin is matched with the inner diameter of the lower branch pipe of the three-way piece;
the bobbin is inserted from the orifice of the lower branch pipe of the tee fitting and then fixed on the tee fitting through a screw;
the upper surface of the comb-shaped filter body is matched with the inner wall of the pipe of the tee joint piece in the horizontal direction.
The comb-shaped filter body and the bobbin are integrated.
The utility model has the advantages of it is following: (1) the structure of the comb-shaped filter body in the comb-shaped water joint has the advantages that because the filtering gaps are arranged in parallel, the direction of the filtering gaps is consistent with the flowing direction of the temporary blocking diverting agent, the temporary blocking diverting agent flows along the filtering gaps, so that the temporary blocking diverting agent cannot cause obstruction, and because the surfaces of some temporary blocking diverting agent particles are in a certain molten state, a layer cannot be scraped by the comb-shaped filter body in the flowing process; (2) in long-term work, some temporary blocking diverting agents with small particles are inevitably clamped in the filtering gap, but the comb-shaped filtering body is in a comb-shaped structure, so that the temporary blocking diverting agent can be brushed away by a brush during cleaning or can be clearly scratched in one direction by a prod, and the cleaning is convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a comb-type water joint;
FIG. 3 is a schematic top view of the comb-type water connection;
in the figure: 1-storage pipe, 2-comb type water joint, 201-bobbin, 202-comb type filter body, 203-filter gap and 3-tee joint piece.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1-3, the filtering structure for purifying the tail end of the automatic temporary plugging diverting agent injection device comprises a storage pipe 1 and a comb-shaped water joint 2, wherein the storage pipe 1 is connected with a feeding pipe, and the feeding pipe is connected with the corresponding feeding device of the injection machine. The storage pipe 1 is also provided with another opening at the inlet and the opening is connected with the liquid inlet pipe, the storage pipe 1 is connected with the liquid outlet pipe through a tee joint part 3, and the comb-shaped water joint 2 is arranged in one pipe opening of the tee joint part 3. The liquid inlet pipe and the liquid outlet pipe are connected, a switch valve is arranged between the two liquid inlet pipes and the liquid outlet pipes, and the connecting structure is a main pipeline.
Specifically, the comb-shaped water joint 2 comprises a bobbin 201, a comb-shaped filter body 202 is fixed at an upper pipe opening of the bobbin 201, the upper surface of the comb-shaped filter body 202 is arc-shaped, the arc surface is matched with the inner wall surface of the three-way piece 3, and the comb-shaped filter body 202 and the bobbin 201 are integrated.
Furthermore, the comb-shaped filter body 202 is provided with a plurality of parallel filter gaps 203, and the filter gaps 203 are comb-shaped on the comb-shaped filter body 202 when viewed from top to bottom; the direction of the filtering gap 203 is consistent with the flow direction of the temporary plugging agent in the storage pipe 1. The temporary blocking diverting agent flows along the filtering gap without causing obstruction, and because the surfaces of some temporary blocking diverting agent particles are in a certain molten state, a layer cannot be scraped by the comb-shaped filtering body in the flowing process.
Preferably, in the present embodiment, the number of the filter slits 203 in the comb-shaped filter body 202 is nine.
For the convenience of installation, the bobbin 201 is a straight pipe with a shoulder at the lower end, a corresponding annular platform is arranged at the pipe orifice of the lower branch pipe of the three-way part 3, and the outer diameter of the bobbin 201 is matched with the inner diameter of the lower branch pipe of the three-way part 3; the bobbin 201 is inserted from the lower branch pipe orifice of the three-way part 3 and then fixed on the three-way part 3 through a screw; the upper surface of the comb-shaped filter body 202 is matched with the inner wall of the tube of the tee joint part 3 in the horizontal direction.
Claims (6)
1. Purify terminal filtration in stifled automatic injection apparatus of diverting agent temporarily, its characterized in that: the device comprises a storage pipe (1) and a comb-shaped water joint (2), wherein the comb-shaped water joint (2) is communicated and arranged below the storage pipe (1), and the storage pipe (1) is connected with a feeding pipe;
the storage pipe (1) is communicated between the material injection machine and the main pipeline, and switch valves are arranged at the connecting parts;
the comb-shaped water joint (2) comprises a bobbin (201), a comb-shaped filter body (202) is fixed at an upper pipe orifice of the bobbin (201), the upper surface of the comb-shaped filter body (202) is arc-shaped, and the arc surface is matched with the inner wall of the storage pipe (1);
the comb-shaped filter body (202) is provided with a plurality of parallel filter gaps (203), and the filter gaps (203) are comb-shaped on the comb-shaped filter body (202) when viewed from top to bottom;
the direction of the filtering gap (203) is consistent with the flow direction of the temporary plugging agent in the storage pipe (1).
2. The filter structure for purifying the tail end in the automatic injection device of the temporary plugging diverting agent according to claim 1, wherein: the filtering gap (203) is seen from top to bottom, one end of the filtering gap is cracked, the other end of the filtering gap is blocked, and one end of the blocking gap is positioned in the flowing direction of the temporary plugging agent.
3. The filter structure for purifying the tail end in the automatic injection device of the temporary plugging diverting agent according to claim 2, wherein: the number of the filter gaps (203) in the comb-shaped filter body (202) is nine.
4. The filter structure for purifying the tail end in the automatic injection device of the temporary plugging diverting agent according to claim 2, wherein: the storage pipe (1), the main pipeline and the comb-shaped water joint (2) are connected through a tee joint piece (3).
5. The filter structure for purifying the tail end of the automatic injection device of the temporary plugging diverting agent according to claim 4, wherein: the bobbin (201) is a straight tube, the lower part of the bobbin is provided with a shoulder, a corresponding annular platform is arranged at the pipe orifice of the lower branch pipe of the three-way piece (3), and the outer diameter of the bobbin (201) is matched with the inner diameter of the lower branch pipe of the three-way piece (3);
the bobbin (201) is inserted from the lower branch pipe orifice of the tee piece (3) and then fixed on the tee piece (3) through a screw;
the upper surface of the comb-shaped filter body (202) is matched with the inner wall of the pipe of the tee joint piece (3) in the horizontal direction.
6. The filter structure for purifying the tail end of the automatic injection equipment of the temporary plugging diversion agent according to any one of claims 1 to 5, wherein: the comb-shaped filter body (202) and the bobbin (201) are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921036515.1U CN210977316U (en) | 2019-07-04 | 2019-07-04 | Filter structure for purifying tail end in automatic temporary plugging diverting agent injection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921036515.1U CN210977316U (en) | 2019-07-04 | 2019-07-04 | Filter structure for purifying tail end in automatic temporary plugging diverting agent injection equipment |
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| CN210977316U true CN210977316U (en) | 2020-07-10 |
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| CN201921036515.1U Active CN210977316U (en) | 2019-07-04 | 2019-07-04 | Filter structure for purifying tail end in automatic temporary plugging diverting agent injection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377165A (en) * | 2020-11-18 | 2021-02-19 | 中国石油天然气股份有限公司 | Fracturing physical simulation experiment method for creating new joints among old joints of horizontal well |
-
2019
- 2019-07-04 CN CN201921036515.1U patent/CN210977316U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377165A (en) * | 2020-11-18 | 2021-02-19 | 中国石油天然气股份有限公司 | Fracturing physical simulation experiment method for creating new joints among old joints of horizontal well |
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