CN214221157U - Same-well pumping and injecting pipe column suitable for mining and injecting - Google Patents
Same-well pumping and injecting pipe column suitable for mining and injecting Download PDFInfo
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- CN214221157U CN214221157U CN202023038956.0U CN202023038956U CN214221157U CN 214221157 U CN214221157 U CN 214221157U CN 202023038956 U CN202023038956 U CN 202023038956U CN 214221157 U CN214221157 U CN 214221157U
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Abstract
The utility model relates to the technical field of oil-water separation tools, in particular to a same-well pumping and injection pipe column suitable for mining and injection, which comprises a pipe column, wherein a water injection layer and an oil extraction layer which are not communicated with each other are arranged in the pipe column; a water injection flow passage and an oil liquid lifting flow passage are also arranged in the tubular column; the inflow end and the outflow end of the water injection flow channel are respectively communicated with the outside and the water injection layer; the oil-liquid lifting flow passage is characterized in that the inflow end and the outflow end of the oil-liquid lifting flow passage are respectively communicated with the oil production layer and the outside, and a lifting driving mechanism is arranged on the oil-liquid lifting flow passage. The utility model discloses convenient to use can implement the same well and take out notes under comparatively complicated oil reservoir condition.
Description
Technical Field
The utility model relates to an oil-water separation instrument technical field, more specifically relates to a same well pump drainage tubular column suitable for adopt on making a bet.
Background
With the deep development of the oil field, the formation energy is gradually reduced, and in order to supplement the formation energy, the oil field adopts the fine water injection development which is more and more urgent, so the same well pumping and injecting technology has considerable application prospect. At present, the pumping and injection pipe column in the same well is complex, and simultaneously, the oil reservoir conditions that an oil production layer is on the top and a water injection layer is on the bottom can only be met.
The Chinese patent document with the publication number of CN101187305B discloses a single-pipe same-well pumping and injecting process system, which adopts a single-pipe column structure convenient for well repair, the pipe column can bear the high pressure of injected water, the water yield is large, and the actual requirements of oil fields are met; and the relative rotation between the electric pump unit and the inner wall of the large-drift-diameter steel pipe can be effectively avoided, so that the small flat cable is prevented from being damaged.
However, the above scheme cannot perform the same well pumping under the conditions of complex oil reservoirs such as the lower oil production layer, two or more water injection layers and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a same well pump drainage tubular column suitable for adopt on making a bet, and convenient to use can implement the same well pump drainage under comparatively complicated oil reservoir condition.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the same-well pumping and injecting pipe column suitable for mining and injecting comprises a pipe column, wherein a water injecting layer and an oil extracting layer which are not communicated with each other are arranged in the pipe column; a water injection flow passage and an oil liquid lifting flow passage are also arranged in the tubular column; the inflow end and the outflow end of the water injection flow channel are respectively communicated with the outside and the water injection layer; the oil-liquid lifting flow passage is characterized in that the inflow end and the outflow end of the oil-liquid lifting flow passage are respectively communicated with the oil production layer and the outside, and a lifting driving mechanism is arranged on the oil-liquid lifting flow passage.
The utility model relates to a be applicable to the same well pump drainage tubular column that adopts on the face of adopting to pour, the tubular column can pour into the water on ground to the water injection layer through the water injection runner, and the tubular column can also lift the runner through fluid simultaneously, lift actuating mechanism and flow the output liquid in with the oil field to well head department from the oil recovery layer, can be used for annotating the oil reservoir condition that the water layer is in the same well co-production under upper and oil recovery layer.
Preferably, the water injection flow passage comprises a first pipeline and a second pipeline connected and communicated with the first pipeline, the first pipeline is communicated with the outside, and the second pipeline is communicated with the water injection layer; the oil liquid lifting flow channel comprises a third pipeline and a fourth pipeline, one end of the third pipeline is communicated with one end of the fourth pipeline, the other end of the third pipeline is communicated with the outside, and the other end of the fourth pipeline is communicated with the oil production layer; the lifting driving mechanism is positioned on the third pipeline; the second pipeline is inserted in the fourth pipeline to form a double-layer oil pipe structure.
Preferably, a plurality of measuring and adjusting pipe fittings are spliced on the double-layer oil pipe structure, and the measuring and adjusting pipe fittings are positioned at the water injection layer and are communicated with the water injection layer. The setting of testing and adjusting pipe fitting can go into supporting testing and adjusting instrument as required and monitor and flow monitoring.
Preferably, the measuring and adjusting pipe fitting comprises a first measuring and adjusting pipe section and a second measuring and adjusting pipe section inserted in the first measuring and adjusting pipe section, a water nozzle is arranged on the second measuring and adjusting pipe section, and the water nozzle extends out of the first measuring and adjusting pipe section and then is communicated with a water injection layer.
Preferably, a first valve mechanism is arranged on the first pipeline. The first valve means is arranged so that the flow of liquid into the first conduit can be controlled.
Preferably, the lifting driving mechanism comprises a second valve mechanism and an electric pump unit which are arranged on the third pipeline.
Preferably, an annular space layer is further arranged in the tubular column, the water injection layer and the oil production layer are not communicated with the annular space layer, and one end of the third pipeline communicated with the fourth pipeline is located in the annular space layer.
Preferably, a plurality of third sealing elements are arranged in the pipe column, and the adjacent third sealing elements and the inner wall of the pipe column form the water injection layer. Wherein, two third sealing members constitute the sealed of water injection layer upper and lower both ends respectively.
Preferably, the third sealing element comprises a sealing ring sleeved on the double-layer oil pipe structure and a packer connected to the inner wall of the pipe column, and the packer is abutted to the sealing ring.
Preferably, a through hole for oil to flow in is formed in the fourth pipeline at one end of the oil production layer.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a be applicable to the same well pump drainage tubular column that adopts on the face of adopting to pour, the tubular column can pour into the water on ground to the water injection layer through the water injection runner, and the tubular column can also lift the runner through fluid simultaneously, lift actuating mechanism and flow the output liquid in with the oil field to well head department from the oil recovery layer, can be used for annotating the oil reservoir condition that the water layer is in the same well co-production under upper and oil recovery layer.
Drawings
Fig. 1 is a schematic structural view of the same well pumping and injecting pipe column suitable for mining and injecting.
Fig. 2 is a schematic view of the liquid flow of the water injection flow passage and the oil liquid lifting flow passage of the present invention.
Fig. 3 is the structure diagram of the measuring and adjusting pipe fitting of the present invention.
The graphic symbols are illustrated as follows:
1-pipe column, 11-annular space layer, 12-water injection layer, 13-oil production layer, 2-water injection flow channel, 21-first pipeline, 211-first oil pipe, 212-in-pipe butt sealing, 213-third oil pipe, 3-oil liquid lifting flow channel, 31-third pipeline, 311-second oil pipe, 312-Y type joint, 313-Y type joint matched working barrel, 4-lifting driving mechanism, 41-second valve mechanism, 42-electric pump unit, 43-first hydraulic control pipeline, 44-electric pump cable, 5-double-layer oil pipe structure, 51-second pipeline, 52-fourth pipeline, 521-through hole, 6-testing and adjusting pipe fitting, 61-first testing and adjusting pipe section, 62-second testing and adjusting pipe section, 63-water nozzle, 7-first valve mechanism, 71-second pilot-controlled line, 8-first seal, 9-second seal, 10-third seal, 101-sealing ring, 102-packer.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Example 1
Fig. 1 to 2 show a first embodiment of a same-well pumping and injecting pipe column suitable for a mining and injection well of the present invention, which comprises a pipe column 1, wherein an annular space layer 11, a water injection layer 12 and an oil extraction layer 13 which are not communicated with each other are sequentially arranged in the pipe column 1 from top to bottom, a plurality of water injection layers 12 can be arranged, and the plurality of water injection layers 12 are not communicated with each other; a water injection flow passage 2 and an oil liquid lifting flow passage 3 are inserted in the pipe column 1 along the extension direction of the pipe column.
The water injection flow passage 2 includes a first pipe 21 and a second pipe 51, one end of the first pipe 21 is connected and communicated with one end of the second pipe 51, the other end of the first pipe 21 is communicated with the outside, and the other end of the second pipe 51 is communicated with the water injection layer 12. The oil liquid lifting flow channel 3 comprises a third pipeline 31 and a fourth pipeline 52, one end of the third pipeline 31 is communicated with one end of the fourth pipeline 52, the other end of the third pipeline 31 is communicated with the outside, and the other end of the fourth pipeline 52 is communicated with the oil production layer 13; one end of the third pipeline 31 communicated with the fourth pipeline 52 is positioned in the annular layer 11; the second pipeline 51 is inserted into the fourth pipeline 52 to form the double-layer oil pipe structure 5, that is, the second pipeline 51 forms an inner pipe of the double-layer oil pipe structure 5, and the fourth pipeline 52 forms an outer pipe of the double-layer oil pipe structure 5; the lifting driving mechanism 4 is positioned in the annular space 11 and connected with the third pipeline 31. A through hole 521 for inflow of oil is provided in the fourth pipe 52 at one end of the oil production layer 13.
Wherein, a plurality of testing and adjusting pipe fittings 6 are inserted on the double-layer oil pipe structure 5, and the testing and adjusting pipe fittings 6 are positioned at the water injection layer 12 and are communicated with the water injection layer 12. As shown in fig. 3, the measurement and regulation pipe fitting 6 in this embodiment includes a first measurement and regulation pipe section 61 and a second measurement and regulation pipe section 62 inserted in the first measurement and regulation pipe section 61, a water nozzle 63 is disposed on the second measurement and regulation pipe section 62, and the water nozzle 63 extends out of the first measurement and regulation pipe section 61 and then is communicated with the water injection layer 12. In this embodiment, the first metering pipe section 61 is connected to and communicates with the fourth pipe 52, and the second metering pipe section 62 is connected to and communicates with the second pipe 51.
Further, the first pipe 21 is provided with a first valve mechanism 7. In this embodiment, the first valve mechanism 7 is a deep well safety valve, a second hydraulic control line 71 is connected to the deep well safety valve, one end of the second hydraulic control line 71 is connected to the deep well safety valve, and the other end is led to a wellhead at the upper end of the pipe column 1.
The lifting driving mechanism 4 includes a second valve mechanism 41 disposed on the third pipeline 31, and an electric pump unit 42. In the implementation, the lifting driving mechanism 4 further comprises a first hydraulic control pipeline 43 and an electric pump cable 44, one end of the first hydraulic control pipeline 43 is connected with the second valve mechanism 41, the other end of the first hydraulic control pipeline is led to a wellhead at the upper end of the pipe column 1, and the second valve mechanism 41 is a deep well safety valve; one end of the electric pump cable 44 is connected to the electric pump unit 42, and the other end is led to the wellhead at the upper end of the pipe string 1.
As shown in fig. 1 to 3, in the present embodiment, the first pipeline 21 includes a first oil pipe 211 and a third oil pipe 213, one end of the first oil pipe 211 and one end of the third oil pipe 213 are connected and communicated through an in-pipe butt seal 212, and the other end of the third oil pipe 213 is connected and communicated with the second pipeline 51; the third pipeline 31 includes a second oil pipe 311, a Y-joint 312, and a Y-joint matched working barrel 313, wherein the Y-joint 312 is inverted, an upper end interface of the Y-joint 312 is connected and communicated with the second oil pipe 311, one interface at the lower end of the Y-joint 312 is connected with one end of the Y-joint matched working barrel 313, the other end of the Y-joint matched working barrel 313 is connected with the upper end of the third oil pipe 213, and the other interface at the lower end of the Y-joint 312 is sequentially connected with the second valve mechanism 41 and the electric pump unit 42 through oil pipe fittings. The first valve mechanism 7 is located on the third oil pipe 213. In addition, in the present embodiment, the first oil pipe 211 is a small-diameter oil pipe, and the second oil pipe 311 is a large-diameter oil pipe.
When the device is used, as shown in fig. 2, the oil production layer 13 of the pipe column 1 is inserted into an oil field, then the electric pump unit 42 is started, produced fluid in the oil field enters the fourth pipeline 52 and the first measure and regulate pipe section 61 through the through hole 521 and flows into the annular space layer 11, and then flows to a wellhead through the electric pump unit 42, the second valve mechanism 41, the Y joint 312 and the second oil pipe 311 in sequence. And the water on the ground flows to the water injection layer 12 through the first oil pipe 211, the pipe butt seal 212, the third oil pipe 213, the first valve mechanism 7, the second pipeline 51, the second measuring and regulating pipe section 62 and the water nozzle 63 in sequence.
Example 2
This embodiment is similar to embodiment 1, except that a first sealing member 8, a second sealing member 9, and a third sealing member 10 are disposed in the pipe column 1, and a hollow space 11 is formed by the first sealing member 8, the second sealing member 9, the third sealing member 10, and the inner wall of the pipe column 1. Wherein the first sealing element 8 forms an upper end seal of the annular layer 11, and the second sealing element 9 and the third sealing element 10 form a lower end seal of the annular layer 11; that is, the space between the first seal 8 and the second seal 9 in the pipe string 1 is an annulus 11. As shown in fig. 1 to 2, the first sealing member 8 is located at the first oil pipe 211 and the second oil pipe 311, and is connected with the inner wall of the pipe string 1; the first seal 8 is an ESP packer. The third oil pipe 213 is connected with the double-layer oil pipe structure 5 through a second sealing element 9, and a third sealing element 10 is positioned below the second sealing element 9. The second seal 9 is a positioning seal.
A plurality of third sealing elements 10 are arranged in the pipe column 1, a plurality of water injection layers 12 which are not communicated with each other are formed by the adjacent third sealing elements 10 and the inner wall of the pipe column 1, wherein the two adjacent third sealing elements 10 respectively form the sealing of the upper end and the lower end of the water injection layer 12; that is, the spaces between adjacent third seals 10 in the pipe string 1 are all water injection layers 12. Specifically, the third sealing element 10 includes a sealing ring 101 sleeved on the double-layer tubing structure 5, and further includes a packer 102 connected to the inner wall of the tubing string 1, and the packer 102 abuts against the sealing ring 101. In this embodiment two water injection layers 12 are provided.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The same-well pumping and injection pipe column suitable for mining and injection comprises a pipe column (1) and is characterized in that a water injection layer (12) and an oil production layer (13) which are not communicated with each other are arranged in the pipe column (1); a water injection flow passage (2) and an oil liquid lifting flow passage (3) are also arranged in the pipe column (1); the inflow end and the outflow end of the water injection flow channel (2) are respectively communicated with the outside and the water injection layer (12); the oil-liquid lifting flow passage is characterized in that the inflow end and the outflow end of the oil-liquid lifting flow passage (3) are respectively communicated with the oil production layer (13) and the outside, and the oil-liquid lifting flow passage (3) is provided with a lifting driving mechanism (4).
2. The string for simultaneous extraction and injection of fluids on a production and injection well according to claim 1, characterized in that said injection flow channel (2) comprises a first duct (21) and a second duct (51) connected to and communicating with said first duct (21), said first duct (21) communicating with the outside and said second duct (51) communicating with said injection layer (12); the oil liquid lifting flow channel (3) comprises a third pipeline (31) and a fourth pipeline (52), one end of the third pipeline (31) is communicated with one end of the fourth pipeline (52), the other end of the third pipeline (31) is communicated with the outside, and the other end of the fourth pipeline (52) is communicated with the oil production layer (13); the lifting driving mechanism (4) is positioned on the third pipeline (31); the second pipeline (51) is inserted into the fourth pipeline (52) to form a double-layer oil pipe structure (5).
3. The same well pumping and injection string suitable for injection and production according to claim 2, wherein the double-layer oil pipe structure (5) is inserted with a plurality of measuring and adjusting pipe fittings (6), and the measuring and adjusting pipe fittings (6) are positioned at the water injection layer (12) and are communicated with the water injection layer (12).
4. The same-well pumping and injecting pipe column suitable for injection and production according to claim 3, wherein the measuring and adjusting pipe fitting (6) comprises a first measuring and adjusting pipe section (61) and a second measuring and adjusting pipe section (62) inserted in the first measuring and adjusting pipe section (61), a water nozzle (63) is arranged on the second measuring and adjusting pipe section (62), and the water nozzle (63) extends out of the first measuring and adjusting pipe section (61) and then is communicated with the water injection layer (12).
5. A co-well pump string suitable for use on a production or injection well according to claim 2, characterised in that the first conduit (21) is provided with a first valve means (7).
6. The string for simultaneous pumping and injection of production and injection wells according to claim 2, characterized in that said lifting driving means (4) comprise a second valve means (41) arranged on said third conduit (31), an electric pump unit (42).
7. The same well pumping and injection string suitable for injection and production according to claim 2, characterized in that an annular space (11) is further arranged in the string (1), the water injection layer (12) and the oil production layer (13) are not communicated with the annular space (11), and one end of the third pipeline (31) communicated with the fourth pipeline (52) is positioned in the annular space (11).
8. A co-well pump string suitable for use on a production string as claimed in claim 2, wherein a plurality of third seals (10) are provided in the string (1), adjacent third seals (10) forming the water injection layer (12) with the inner wall of the string (1).
9. A co-well pumping string suitable for use on a production tubing as claimed in claim 8, wherein the third sealing member (10) comprises a sealing ring (101) sleeved on the double tubing structure (5) and a packer (102) connected to the inner wall of the string (1), the packer (102) abutting against the sealing ring (101).
10. A string for simultaneous injection and recovery as in claim 2, characterized in that said fourth pipe (52) at the end of said production zone (13) is provided with a through hole (521) for the inflow of oil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023038956.0U CN214221157U (en) | 2020-12-16 | 2020-12-16 | Same-well pumping and injecting pipe column suitable for mining and injecting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023038956.0U CN214221157U (en) | 2020-12-16 | 2020-12-16 | Same-well pumping and injecting pipe column suitable for mining and injecting |
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| CN214221157U true CN214221157U (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876424A (en) * | 2022-06-07 | 2022-08-09 | 中海石油(中国)有限公司深圳分公司 | Separate mining and separate injection string and separate mining and separate injection method |
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2020
- 2020-12-16 CN CN202023038956.0U patent/CN214221157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876424A (en) * | 2022-06-07 | 2022-08-09 | 中海石油(中国)有限公司深圳分公司 | Separate mining and separate injection string and separate mining and separate injection method |
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