CN212803194U - Horizontal well produced liquid sectional test system based on continuous oil pipe dragging - Google Patents
Horizontal well produced liquid sectional test system based on continuous oil pipe dragging Download PDFInfo
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- CN212803194U CN212803194U CN202021954593.2U CN202021954593U CN212803194U CN 212803194 U CN212803194 U CN 212803194U CN 202021954593 U CN202021954593 U CN 202021954593U CN 212803194 U CN212803194 U CN 212803194U
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Abstract
The utility model relates to and segmentation test system, more specifically the horizontal well production liquid segmentation test system based on coiled tubing drags that says so, including ground controller, single core cable, coiled tubing, centralizer I, oil pipe, automatically controlled packer I, the tester, ask for the product pump, automatically controlled packer II and centralizer II, centralizer I, automatically controlled packer I, the tester, ask for the product pump, automatically controlled packer II, the tubing constitution instrument cluster that is connected between centralizer II and the between the centralizer, connect through oil pipe between the export of tester and asking for the product pump, connect through oil pipe between automatically controlled packer I and the tester, connect through oil pipe between automatically controlled packer II and asking for the product pump, connect through oil pipe between centralizer I and the automatically controlled packer I, connect through oil pipe between centralizer II and the automatically controlled packer II, ask for the product pump, the tester, centralizer I, automatically controlled packer I, oil pipe between I and the automatically controlled packer II, ask for the product pump, the tester, centralizer I, The electric control packer II and the centralizer II are both connected with a single-core cable; can ensure smooth and reliable setting and unsetting.
Description
Technical Field
The utility model relates to a sectional test system, more specifically the horizontal well liquid production sectional test system based on continuous oil pipe drags that says so.
Background
The horizontal well and the oil layer are kept horizontal, the larger contact area enables the horizontal well to have higher yield than a straight well, and the yield of a single well can reach more than three times of that of the straight well, so that the horizontal well and the oil layer are widely applied. The horizontal well adopting water injection and oil displacement can form water circulation of a water injection well and a production well after water is met, while the horizontal well adopting bottom water for oil displacement can be crossed into bottom water, and the water layer pressure is higher than that of an oil layer, so that the oil layer can not be close to a well head any more, and a dead oil zone is formed; the horizontal well is excavated, and natural cracks are met at a high probability to generate crack penetration, the water content of produced liquid is increased due to the water outlet modes, and the productivity of the horizontal well is reduced. Similarly, because the horizontal well and the oil layer are kept horizontal, the horizontal well is easier to produce a large amount of water than the vertical well, so that water logging is caused, and the water outlet condition is more serious when the pressure difference is larger. If the water content of the horizontal well is not timely taken after water breakthrough, the water content is continuously increased, the productivity is continuously reduced, so that the water finding is quickly carried out after the water breakthrough occurs to determine the water outlet position, and a corresponding water plugging method is adopted to prevent the water from continuously flowing into the horizontal well.
The conventional method for testing water exploration of an oil well usually adopts an annulus testing method, and an annulus is put into the well under the condition of not influencing production, but the method is severely limited by well conditions due to the difficulty in running instruments, and can hardly be used in a horizontal well, so that the method is very limited in use. The principle of the water finding technology is that a packer is used for sealing production intervals, underground sections of the horizontal well produce in sequence, and the working states of different production intervals are analyzed in modes of analyzing water content, detecting pressure and the like through ground test liquid quantity to determine the water outlet position. The conventional horizontal well subsection production test water detection method cannot guarantee smooth and reliable setting and unsealing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a horizontal well liquid production segmentation test system based on coiled tubing drags can guarantee smooth reliable setting and deblocking.
The purpose of the utility model is realized through the following technical scheme:
a horizontal well produced fluid subsection testing system based on coiled tubing dragging comprises a ground controller, a single-core cable, a centralizer I, an oil pipe, an electric control packer I, an electric control packer II and a centralizer II, wherein the electric control packer I and the electric control packer II are both connected with the single-core cable which is connected with the ground controller; the electric control packer I is connected with the centralizer I through an oil pipe, the electric control packer II is connected with the centralizer II through an oil pipe, and the centralizer I and the centralizer II are both connected with a single-core cable.
As a further optimization of this technical scheme, the utility model relates to a horizontal well liquid production segmentation test system based on coiled tubing drags, the equivalent of automatically controlled packer I and automatically controlled packer II overflows the diameter and is 35mm, and the external diameter is 110 mm.
As this technical scheme's further optimization, the utility model relates to a horizontal well liquid production segmentation test system based on coiled tubing drags, horizontal well liquid production segmentation test system based on coiled tubing drags still includes the tester and asks the product pump, the tester with ask the product pump setting between automatically controlled packer I and automatically controlled packer II, the tester with ask the product pump all with single core cable junction, the tester is connected in the export of asking the product pump through oil pipe, through oil pipe connection between tester and the automatically controlled packer I, ask the product pump and automatically controlled packer to connect through oil pipe between II.
As the further optimization of this technical scheme, the utility model relates to a horizontal well production liquid segmentation test system based on continuous oil pipe drags, ask the product pump to be the miniature screw pump of big moment direct current motor drive.
As a further optimization of this technical scheme, the utility model relates to a horizontal well production fluid segmentation test system based on coiled tubing drags, be located to ask and be provided with a plurality of through-flow holes on the oil pipe of production pump entry department.
As this technical scheme's further optimization, the utility model relates to a horizontal well liquid production segmentation test system based on coiled tubing drags, horizontal well liquid production segmentation test system based on coiled tubing drags still includes coiled tubing, and coiled tubing connects with centralizer I, and single core cable sets up in the coiled tubing, and ground controller sets up subaerial.
As this technical scheme's further optimization, the utility model relates to a horizontal well production liquid segmentation test system based on coiled tubing drags, centralizer I, automatically controlled packer I, tester, ask for the product pump, automatically controlled packer II, centralizer II and between the oil pipe that is connected constitute the instrument cluster.
As the further optimization of this technical scheme, the utility model relates to a horizontal well production liquid segmentation test system based on coiled tubing drags, oil pipe's internal diameter is 35 mm.
The utility model relates to a horizontal well liquid production segmentation test system based on coiled tubing drags's beneficial effect does:
the utility model relates to a horizontal well liquid production subsection test system based on coiled tubing drags, can drag through coiled tubing, realizes the purpose of measuring arbitrary layer section in the pit; the novel production-seeking pump is adopted, the operation can be realized only by supplying power to a wellhead, the construction difficulty is reduced, the tester is connected with the outlet of the production-seeking pump, underground real-time data can be quickly obtained, and the output condition of each section can be analyzed in real time; the setting and the unsetting of the electric control packer I and the electric control packer II are actively regulated and controlled by a ground controller, so that the test position and the test time can be adjusted at will.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the utility model discloses a horizontal well production fluid segmentation test system overall structure schematic diagram based on coiled tubing drags.
In the figure: a ground controller 1; a single core cable 2; a coiled tubing 3; a centralizer I4; an oil pipe 5; an electric control packer I6; a tester 7; a yield pump 8; an electric control packer II 9; and a centralizer II 10.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the embodiment is described below by combining with fig. 1, and a horizontal well produced fluid sectional test system based on coiled tubing dragging comprises a ground controller 1, a single-core cable 2, a centralizer I4, an oil pipe 5, an electronic control packer I6, an electronic control packer II 9 and a centralizer II 10, wherein the electronic control packer I6 and the electronic control packer II 9 are both connected with the single-core cable 2, and the single-core cable 2 is connected with the ground controller 1; the electric control packer I6 is connected with the centralizer I4 through an oil pipe 5, the electric control packer II 9 is connected with the centralizer II 10 through the oil pipe 5, and the centralizer I4 and the centralizer II 10 are both connected with the single-core cable 2; the electric control packer I6 and the electric control packer II 9 receive an instruction of the ground controller 1 to perform active packing action, the outer diameters of rubber cylinders of the electric control packer I6 and the electric control packer II 9 are increased under the extrusion action, and the well wall is extruded to realize sealing; the external diameter of centralizer I4 and centralizer II 10 slightly is less than the well, is greater than the tool string, and consequently when the borehole internal motion, centralizer I4 and centralizer II 10 can guarantee that the tool string is concentric basically with the well, can not take place obvious slope, and then reach the problem of avoiding equipment dead in the card in the pit.
The second embodiment is as follows:
the embodiment is described below with reference to fig. 1, and the embodiment further describes the first embodiment, wherein the equivalent flow-through diameter of the electrically controlled packer i 6 and the electrically controlled packer ii 9 is 35mm, and the outer diameter is 110 m; slightly smaller than the borehole wall.
The third concrete implementation mode:
the embodiment is described below with reference to fig. 1, and the embodiment further describes the first embodiment, the horizontal well production fluid subsection testing system based on coiled tubing dragging further includes a tester 7 and a production request pump 8, the tester 7 and the production request pump 8 are arranged between an electric control packer i 6 and an electric control packer ii 9, both the tester 7 and the production request pump 8 are connected with a single core cable 2, the tester 7 is connected with an outlet of the production request pump 8 through an oil pipe 5, the tester 7 is connected with the electric control packer i 6 through an oil pipe 5, and the production request pump 8 is connected with the electric control packer ii 9 through an oil pipe 5; in a packing state, the outer diameter of the rubber cylinder is increased by extrusion to realize sealing, and the rubber cylinder is used for independently separating the layer section to be tested, so that liquid outside the layer section cannot be sucked by the yield pump 8, the liquid discharged from the outlet of the yield pump 8 enters the tester 7, and the tester 7 tests the temperature, pressure, flow and water content of overflowing liquid; the electric control packer I6 and the electric control packer II 9 receive an instruction of the ground controller 1 to perform active packing action, the outer diameters of rubber cylinders of the electric control packer I6 and the electric control packer II 9 are increased under the extrusion action, and the well wall is extruded to realize sealing; the yield-seeking pump 8 starts to pump liquid after receiving an instruction of the ground controller 1, a plurality of through-flow holes are formed in the oil pipe 5 close to the position near the inlet of the yield-seeking pump 8, so that the liquid can smoothly flow into the yield-seeking pump 8, the electrically controlled packer I6 and the electrically controlled packer II 9 realize separation of a layer section to be measured, and the yield-seeking pump 8 only pumps the liquid between the two electrically controlled packers 9 and 6; liquid discharged from the outlet of the yield pump 8 enters the tester 7, the tester 7 tests the temperature, pressure, flow and water content of overflowing liquid, and signals are transmitted in the ground controller 1 in real time through the single-core cable 2; after the test and analysis are completed, the yield finding pump 8 receives an instruction of stopping pumping of the ground controller 1, and meanwhile, the electric control packer I6 and the electric control packer II 9 receive an instruction of unsealing of the ground controller 1; in a packing state, the outer diameter of the rubber cylinder is increased by extrusion to realize sealing, and the rubber cylinder is used for separately separating the interval to be measured, so that liquid outside the interval cannot be sucked by the production pump 8; because the electric control packer I6 and the electric control packer II 9 are used for packing liquid, no liquid flows, the liquid information of the position can be more accurately measured, and the direct measurement of the parameters of the producing zone can be realized; the electric control packer I6 and the electric control packer II 9 are electrically controlled mechanisms to drive the rubber cylinders to compress and reset, and repeated setting and unsetting actions of the electric control packer I6 and the electric control packer II 9 are realized.
The fourth concrete implementation mode:
the third embodiment is further described below with reference to fig. 1, in which the yield pump 8 is a micro screw pump driven by a large-torque dc motor; the yield-seeking pump 8 is realized by driving a micro screw pump by a large-torque direct-current motor, the pressure difference between the outlet and the inlet of the yield-seeking pump 8 is not more than 5MPa, and the flow is not more than 5m3/d。
The fifth concrete implementation mode:
the third embodiment is further described with reference to fig. 1, in which a plurality of through-flow holes are formed in the oil pipe 5 at the inlet of the production pump 8; guarantee that liquid can flow into smoothly and ask for in the pump 8 of producing, because I6 of automatically controlled packer and II 9 of automatically controlled packer have realized the separation to the interval that awaits measuring, ask for the pump 8 of producing and only pump the liquid between I6 of automatically controlled packer and II 9 of automatically controlled packer.
The sixth specific implementation mode:
the embodiment is described below with reference to fig. 1, and the third embodiment is further described in the embodiment, the horizontal well produced fluid subsection testing system based on coiled tubing dragging further includes a coiled tubing 3, the coiled tubing 3 is connected with a centralizer i 4, a single core cable 2 is arranged in the coiled tubing 3, and a ground controller 1 is arranged on the ground; the coiled tubing 3 is pushed by a wellhead hydraulic device to axially advance/retreat so as to drive a tool string connected with the coiled tubing to advance/retreat together; under the dragging of the coiled tubing 3, the tool string moves to the next interval to be tested, and the process is repeated until the test of the whole horizontal well is completed; and analyzing the test parameters and determining the position of the layer interval where water is produced.
The seventh embodiment:
the embodiment is described below with reference to fig. 1, and the sixth embodiment is further described, wherein the centralizer i 4, the electronic control packer i 6, the tester 7, the production pump 8, the electronic control packer ii 9, the centralizer ii 10 and the oil pipe 5 connected therebetween form a tool string; the electric control packer I6 and the electric control packer II 9 can be internally provided with a timing automatic setting and unsetting program, the production pump 8 can be internally provided with a timing automatic starting and stopping program, and the tool string can be automatically measured underground by matching with the timing dragging of the continuous oil pipe 3, and the ground controller 1 only carries out power supply and underground signal acquisition; after the tool string is thrown to a designated position, pressure waves are applied to a wellhead, and the electric control packer I6 and the electric control packer II 9 can realize setting after receiving wellhead pressure waves; after the test is finished, the electric control packer I6 and the electric control packer II 9 are subjected to deblocking action by applying pressure waves; the pressure wave is suppressed/is relieved the pressure and produce to tool string inside through well head pump truck, is provided with pressure sensor in the tool string, when the well head suppressed in to the coiled tubing, because the tool string has certain throttling action, the sensor pressure value can be higher than static pressure in the pit, and pressure maintenance after specific time stops suppressing in to the coiled tubing, and the sensor measures the pressure value and resumes to static pressure in the pit. The pressure rise and fall changes of the sensor are called pressure waves, and when the control circuit detects a specific duration and a specific number of pressure waves, the control circuit can drive the actuating mechanism to realize setting/unsealing actions according to an internal preset response program. Different actions of different packers correspond to different pressure wave signals so as to ensure that the packers cannot interfere with each other during working.
The specific implementation mode is eight:
the present embodiment will be described with reference to fig. 1, and the seventh embodiment will be further described with reference to the present embodiment, in which the inner diameter of the oil pipe 5 is 35 mm.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a horizontal well production fluid segmentation test system based on coiled tubing drags, includes ground controller (1), single core cable (2), centralizer I (4), oil pipe (5), automatically controlled packer I (6), automatically controlled packer II (9) and centralizer II (10), its characterized in that: the electric control packer I (6) and the electric control packer II (9) are both connected with a single-core cable (2), and the single-core cable (2) is connected with the ground controller (1); the electric control packer I (6) is connected with the centralizer I (4) through the oil pipe (5), the electric control packer II (9) is connected with the centralizer II (10) through the oil pipe (5), and the centralizer I (4) and the centralizer II (10) are both connected with the single-core cable (2).
2. The horizontal well liquid production subsection testing system based on coiled tubing dragging is characterized in that: the equivalent overflowing diameter of the electric control packer I (6) and the electric control packer II (9) is 35mm, and the outer diameter is 110 mm.
3. The horizontal well liquid production subsection testing system based on coiled tubing dragging is characterized in that: horizontal well liquid production subsection test system based on coiled tubing drags still includes tester (7) and asks product pump (8), tester (7) with ask product pump (8) to set up between automatically controlled packer I (6) and automatically controlled packer II (9), tester (7) with ask product pump (8) all to be connected with single core cable (2), tester (7) are connected the export of asking product pump (8) through oil pipe (5), connect through oil pipe (5) between tester (7) and automatically controlled packer I (6), ask to connect through oil pipe (5) between product pump (8) and automatically controlled packer II (9).
4. The horizontal well fluid production subsection testing system based on coiled tubing dragging is characterized in that: the yield-seeking pump (8) is a micro screw pump driven by a large-torque direct-current motor.
5. The horizontal well fluid production subsection testing system based on coiled tubing dragging is characterized in that: and a plurality of through flow holes are formed in the oil pipe (5) positioned at the inlet of the production seeking pump (8).
6. The horizontal well fluid production subsection testing system based on coiled tubing dragging is characterized in that: the horizontal well liquid production sectional test system based on coiled tubing dragging further comprises a coiled tubing (3), the coiled tubing (3) is connected with the centralizer I (4), the single-core cable (2) is arranged in the coiled tubing (3), and the ground controller (1) is arranged on the ground.
7. The horizontal well liquid production subsection testing system based on coiled tubing dragging is characterized in that: the centralizer I (4), the electric control packer I (6), the tester (7), the production pump (8), the electric control packer II (9), the centralizer II (10) and the oil pipe (5) connected with the centralizer II (10) form a tool string.
8. The coiled tubing-drag-based horizontal well produced fluid staged testing system according to any one of claims 1 to 7, wherein: the inner diameter of the oil pipe (5) is 35 mm.
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| CN202021954593.2U CN212803194U (en) | 2020-09-09 | 2020-09-09 | Horizontal well produced liquid sectional test system based on continuous oil pipe dragging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719270A (en) * | 2021-10-07 | 2021-11-30 | 哈尔滨工业大学重庆研究院 | Oil pipe dragging type horizontal well rapid sectional test system and implementation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719270A (en) * | 2021-10-07 | 2021-11-30 | 哈尔滨工业大学重庆研究院 | Oil pipe dragging type horizontal well rapid sectional test system and implementation method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A segmented testing system for liquid production in horizontal wells based on coiled tubing drag Effective date of registration: 20211217 Granted publication date: 20210326 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: HARBIN AITUOPU TECHNOLOGY CO.,LTD. Registration number: Y2021230000057 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20230208 Granted publication date: 20210326 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: HARBIN AITUOPU TECHNOLOGY CO.,LTD. Registration number: Y2021230000057 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |