CN111852449A - Continuous dragging type horizontal well produced liquid sectional test system - Google Patents
Continuous dragging type horizontal well produced liquid sectional test system Download PDFInfo
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- CN111852449A CN111852449A CN202010940717.XA CN202010940717A CN111852449A CN 111852449 A CN111852449 A CN 111852449A CN 202010940717 A CN202010940717 A CN 202010940717A CN 111852449 A CN111852449 A CN 111852449A
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 40
- 239000012530 fluid Substances 0.000 claims description 19
- 230000011218 segmentation Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 238000005457 optimization Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000032696 parturition Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- Engineering & Computer Science (AREA)
- Geology (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a segmented test system, in particular to a continuous dragging type horizontal well produced liquid segmented test system which comprises a ground controller, a single-core cable, a continuous oil pipe, a centralizer I, an oil pipe, an electric control packer I, a tester, a production request pump, an electric control packer II and a centralizer II, wherein the centralizer I, the electric control packer I, the tester, the production request pump, the electric control packer II and the centralizer II form a tool string together with the oil pipe connected with each other, an outlet of the tester and the production request pump is connected with each other through the oil pipe, the electric control packer I is connected with the tester through the oil pipe, the electric control packer II is connected with the production request pump through the oil pipe, the centralizer I is connected with the electric control packer I through the oil pipe, the centralizer II is connected with the electric control packer II through the oil pipe, the production request pump, the tester, the centralizer I, the electric control packer II and the centralizer II are connected with the single-core cable, the results can be tested quickly and transmitted in real time.
Description
Technical Field
The invention relates to a sectional test system, in particular to a continuous dragging type horizontal well liquid production sectional test system.
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.
For example, publication No. CN206874269U discloses a horizontal well fluid production test system for coiled tubing operations; the system comprises a ground numerical control device, a cable, a coiled tubing, a cable head and a horizontal well subsection testing pipe string; a cable is arranged in the coiled tubing; one end of the cable is connected with the ground numerical control device, and the other end of the cable is connected with the horizontal well subsection testing pipe string through a cable head; the horizontal well subsection testing pipe string comprises a flexible short section, a remote measuring short section, a screen pipe short section, an upper packer, a horizontal well liquid production tester and a lower packer which are sequentially connected; the utility model has the disadvantages that the information of the liquid at the position can not be accurately measured; the existing horizontal well production fluid testing system matched with coiled tubing operation, such as the mode adopted by CN206874269U, needs to put in and salvage once for testing each interval, and needs to put in and salvage twice if production fluid is required to be pumped by adding a production pump, so that the problems of large construction amount and low testing efficiency exist.
Disclosure of Invention
The invention aims to provide a continuous dragging type horizontal well produced liquid subsection testing system which can accurately measure the information of liquid at the position of the horizontal well.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a drag formula horizontal well production liquid segmentation test system in succession, includes oil pipe, automatically controlled packer I, tester, asks product pump and automatically controlled packer II, through tubing connection between the export of tester and asking product pump, through tubing connection between automatically controlled packer I and the tester, automatically controlled packer II with ask through tubing connection between the product pump, ask in the pump with the liquid suction tester between automatically controlled packer I and the automatically controlled packer II.
As a further optimization of the technical scheme, the continuous dragging type horizontal well produced liquid sectional testing system is characterized in that the production obtaining pump is a micro screw pump driven by a high-torque direct-current motor.
As a further optimization of the technical scheme, the continuous dragging type horizontal well produced liquid sectional testing system is characterized in that a plurality of through flow holes are formed in an oil pipe located at an inlet of the production-seeking pump.
As further optimization of the technical scheme, the continuous dragging type horizontal well produced fluid sectional testing system provided by the invention has the advantages that the equivalent flow-through diameter of the electric control packer I and the electric control packer II is 20-35 mm, and the outer diameter is 90-110 mm.
As further optimization of the technical scheme, the continuous dragging type horizontal well produced fluid sectional test system further comprises a centralizer I and a centralizer II, wherein the centralizer I is connected with the electronic control packer I through an oil pipe, and the centralizer II is connected with the electronic control packer II through an oil pipe.
As further optimization of the technical scheme, the continuous dragging type horizontal well produced liquid sectional testing system further comprises a continuous oil pipe, and the continuous oil pipe is connected with a centralizer I.
As further optimization of the technical scheme, the continuous dragging type horizontal well produced fluid sectional test system further comprises a ground controller and a single-core cable, wherein the ground controller is arranged on the ground and connected with the single-core cable, the single-core cable is arranged in the continuous oil pipe, and a production pump, a tester, a centralizer I, an electric control packer II and a centralizer II are connected with the single-core cable.
As further optimization of the technical scheme, the continuous dragging type horizontal well produced liquid subsection testing system comprises a tool string consisting of the centralizer I, the electric control packer I, the tester, the production pump, the electric control packer II, the centralizer II and an oil pipe connected among the centralizer II.
As the technical scheme is further optimized, the inner diameter of the oil pipe is 62 mm.
The continuous dragging type horizontal well produced liquid subsection testing system has the beneficial effects that:
the continuous dragging type horizontal well liquid production subsection testing system can realize the purpose of measuring any underground section by dragging through the continuous oil pipe; 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 pump of asking for parturition is placed inside the tool string, when the test interval is changed, need not to put in alone and salvage the pump of asking for parturition, has shortened the construction operation required time greatly, has improved efficiency of software testing, and the setting and the deblocking of automatically controlled packer I and automatically controlled packer II receive ground controller's initiative regulation and control, can realize test position wantonly, and test time adjusts.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the overall structure of a horizontal well production fluid subsection testing system based on coiled tubing dragging.
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 with reference to fig. 1, and a continuous dragging type horizontal well produced fluid sectional test system comprises an oil pipe 5, an electric control packer I6, a tester 7, a production seeking pump 8 and an electric control packer II 9, wherein outlets of the tester 7 and the production seeking pump 8 are connected through the oil pipe 5, the electric control packer I6 and the tester 7 are connected through the oil pipe 5, the electric control packer II 9 and the production seeking pump 8 are connected through the oil pipe 5, liquid discharged from an outlet of the production seeking pump 8 enters the tester 7, the production seeking pump 8 pumps the liquid between the electric control packer I6 and the electric control packer II 9 into the tester 7, and the tester 7 tests the temperature, pressure, flow and water content of overflowing liquid; 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 electric control mechanisms for driving the rubber sleeve to compress and reset, so that repeated setting and unsetting actions of the electric control packer I6 and the electric control packer II 9 are realized; the yield-seeking pump 8 can suck liquid into the tester 7 quickly, so that quick and accurate detection is realized; the production seeking pump 8 is thrown into the horizontal well section along with the tool string, and can work immediately after setting is finished without independent throwing.
The second embodiment is as follows:
the present embodiment is described below with reference to fig. 1, and the present embodiment further describes the first embodiment, 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 10MPa, and the flow is not more than 20m3/d。
The third concrete implementation mode:
the present embodiment is described below with reference to fig. 1, and the present embodiment further describes the first embodiment, in which a plurality of through-flow holes are provided in the oil pipe 5 at the inlet of the production pump 8; the liquid can be ensured to smoothly flow into the yield obtaining pump 8, the separation of the section to be detected is realized by the electric control packer I6 and the electric control packer II 9, and the yield obtaining pump 8 only pumps the liquid between the electric control packer I6 and the electric control packer II 9; because the electric control packer I6 and the electric control packer II 9 are used for packing liquid, no liquid flows, and the liquid information at the position can be measured more accurately; in single downhole operation, the electric control packer I6 and the electric control packer II 9 can be effectively set and unset repeatedly.
The fourth concrete implementation mode:
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 20 to 35mm, and the outer diameter is 90 to 110 mm. Slightly smaller than the borehole wall.
The fifth concrete implementation mode:
the embodiment is described below with reference to fig. 1, and the embodiment further describes the first embodiment, the horizontal well produced fluid subsection testing system based on coiled tubing dragging further comprises a centralizer i 4 and a centralizer ii 10, the centralizer i 4 is connected with the electrically controlled packer i 6 through an oil pipe 5, and the centralizer ii 10 is connected with the electrically controlled packer ii 9 through an oil pipe 5; 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 sixth specific implementation mode:
the embodiment is described below with reference to fig. 1, and the fifth embodiment is further described in the embodiment, the horizontal well produced fluid segmented testing system based on coiled tubing dragging further comprises a coiled tubing 3, and the coiled tubing 3 is connected with a centralizer i 4; the coiled tubing 3 is pushed by the oil field equipment of the wellhead hydraulic device to axially advance/retreat so as to drive the 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 horizontal well produced fluid sectional test system based on coiled tubing dragging further comprises a ground controller 1 and a single-core cable 2, the ground controller 1 is arranged on the ground, the ground controller 1 is connected with the single-core cable 2, the single-core cable 2 is arranged in the coiled tubing 3, and a production pump 8, a tester 7, a centralizer i 4, an electronic control packer i 6, an electronic control packer ii 9 and a centralizer ii 10 are all 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 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 analysis is completed, the production-seeking 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 deblocking of the ground controller 1.
The specific implementation mode is eight:
the embodiment is described below with reference to fig. 1, and the seventh 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, the ground controller 1 controls the electric control packer I6 and the electric control packer II 9 to move so as to complete setting and unsetting; the ground controller 1 controls the production-seeking pump 8 to start and stop; the tool string can carry out setting test on any layer section at any position under the dragging of the coiled tubing, and does not need to be thrown and dragged for many times in the midway.
The specific implementation method nine:
the present embodiment will be described with reference to fig. 1, and the present embodiment further describes the first to eighth embodiments, wherein the inner diameter of the oil pipe 5 is 62 mm.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (9)
1. The utility model provides a drag formula horizontal well production liquid segmentation test system in succession, includes oil pipe (5), automatically controlled packer I (6), tester (7), asks production pump (8) and automatically controlled packer II (9), its characterized in that: the tester (7) is connected with the outlet of the production seeking pump (8) through an oil pipe (5), the electric control packer I (6) is connected with the tester (7) through the oil pipe (5), the electric control packer II (9) is connected with the production seeking pump (8) through the oil pipe (5), and the production seeking pump (8) sucks liquid between the electric control packer I (6) and the electric control packer II (9) into the tester (7).
2. The continuous drag-type horizontal well produced fluid staged testing system according to claim 1, characterized in that: the yield-seeking pump (8) is a micro screw pump driven by a large-torque direct-current motor.
3. The continuous drag-type horizontal well produced fluid staged testing system according to claim 1, 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).
4. The continuous drag-type horizontal well produced fluid staged testing system according to claim 1, characterized in that: the equivalent overflowing diameter of the electric control packer I (6) and the electric control packer II (9) is 20-35 mm, and the outer diameter is 90-110 mm.
5. The continuous drag-type horizontal well produced fluid staged testing system according to claim 1, characterized in that: the horizontal well liquid production sectional test system based on continuous oil pipe dragging further comprises a centralizer I (4) and a centralizer II (10), the centralizer I (4) is connected with the electric control packer I (6) through an oil pipe (5), and the centralizer II (10) is connected with the electric control packer II (9) through the oil pipe (5).
6. The continuous drag-type horizontal well produced fluid staged testing system according to claim 5, wherein: the horizontal well liquid production sectional test system based on continuous oil pipe dragging further comprises a continuous oil pipe (3), and the continuous oil pipe (3) is connected with the centralizer I (4).
7. The continuous drag-type horizontal well produced fluid staged testing system according to claim 6, wherein: horizontal well liquid production sectional test system based on coiled tubing drags still includes ground controller (1) and single core cable (2), and ground controller (1) sets up subaerial, and ground controller (1) and single core cable (2) are connected, and single core cable (2) set up in coiled tubing (3), ask for to produce pump (8), tester (7), centralizer I (4), automatically controlled packer I (6), automatically controlled packer II (9) and centralizer II (10) and all be connected with single core cable (2).
8. The continuous drag-type horizontal well produced fluid staged testing system according to claim 7, wherein: 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.
9. The continuous drag-type horizontal well fluid production zonal testing system according to any one of claims 1 to 8, wherein: the inner diameter of the oil pipe (5) is 62 mm.
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| CN202010940717.XA CN111852449B (en) | 2020-09-09 | 2020-09-09 | Continuous dragging type horizontal well produced liquid sectional test system |
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| CN202010940717.XA CN111852449B (en) | 2020-09-09 | 2020-09-09 | Continuous dragging type horizontal well produced liquid sectional test system |
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| CN111852449B CN111852449B (en) | 2022-11-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112211586A (en) * | 2020-11-04 | 2021-01-12 | 中国石油天然气股份有限公司 | Electrically controlled self-walking packer for horizontal well |
| CN112360438A (en) * | 2020-12-04 | 2021-02-12 | 中国石油天然气股份有限公司 | Underground rapid water exploration test pipe column and using method |
| CN112392468A (en) * | 2020-12-04 | 2021-02-23 | 中国石油天然气股份有限公司 | Rapid water exploration test pipe column and method for coiled tubing electric submersible pump of horizontal well |
| CN112943182A (en) * | 2021-01-11 | 2021-06-11 | 中国石油天然气股份有限公司 | Free layer changing device and method for horizontal well |
| 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 |
| CN113738354A (en) * | 2021-10-07 | 2021-12-03 | 哈尔滨工业大学重庆研究院 | High-efficient sampling system of automatically controlled anchoring setting formula |
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