CN110792415B - Dynamic monitoring system for horizontal water injection wells - Google Patents
Dynamic monitoring system for horizontal water injection wells Download PDFInfo
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- CN110792415B CN110792415B CN201810785748.5A CN201810785748A CN110792415B CN 110792415 B CN110792415 B CN 110792415B CN 201810785748 A CN201810785748 A CN 201810785748A CN 110792415 B CN110792415 B CN 110792415B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 239000007924 injection Substances 0.000 title claims abstract description 117
- 238000002347 injection Methods 0.000 title claims abstract description 117
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 115
- 238000012806 monitoring device Methods 0.000 claims abstract description 23
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Classifications
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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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
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
-
- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a dynamic monitoring system of a horizontal water injection well, which comprises the water injection well and a dynamic monitoring device arranged in the water injection well, wherein the water injection well comprises a well body structure and a christmas tree, the well body structure is arranged below the christmas tree, the well body structure comprises a sleeve and an oil pipe, the sleeve and the oil pipe are connected with the christmas tree, the oil pipe is arranged in the sleeve, the oil pipe comprises a vertical section, a bending section and a horizontal section, the bending section is arranged between the vertical section and the horizontal section, the dynamic monitoring device is arranged in the oil pipe, the dynamic monitoring device comprises a testing instrument and a power umbrella fixedly connected with the testing instrument, the cross section area of the power umbrella is larger than that of the testing instrument, and the power umbrella drives the testing instrument to move from the vertical section to the horizontal section under the driving of a driving device. The system of the invention is not easy to be blocked when the test instrument is placed in the horizontal section of the horizontal water injection well, and can effectively reduce the production cost of a construction unit.
Description
Technical Field
The invention relates to the production technology of oil and gas wells, in particular to a dynamic monitoring system of a horizontal water injection well.
Background
In the petroleum and natural gas exploitation process, the stratum energy of the oil and gas well is continuously attenuated along with the exploitation. In order to ensure smooth exploitation, a certain measure is needed to maintain the stratum energy, wherein water injection is an important measure for maintaining the stratum pressure of an oil and gas well, accelerating the recovery speed and improving the recovery ratio. When the stratum energy is maintained by adopting a water injection mode, corresponding dynamic monitoring work is required to be carried out, and whether injected water enters a designed horizon, whether an expected oil displacement effect is achieved, whether an injection allocation scheme is reasonable or not and the like are judged by monitoring corresponding parameters.
In the prior art, a testing instrument is generally put into a water injection well, and the testing instrument is used for monitoring relevant parameters in the water injection process to realize dynamic monitoring of the water injection process. For a horizontal water injection well, a test instrument cannot enter a horizontal section of the horizontal water injection well by means of gravity, and at the moment, the test instrument needs to be placed into the horizontal section of the horizontal water injection well by using external force, and a crawling robot is generally used for assisting the test instrument to move towards the horizontal section of the horizontal water injection well in the prior art.
However, because some impurities are inevitably remained in the oil pipe in the production process of the oil gas well, the crawling robot is extremely easy to be blocked when passing through the road section, and in addition, the crawling robot is high in manufacturing cost, so that the production cost of a construction unit is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a dynamic monitoring system for a horizontal water injection well, which is not easy to be blocked when a test instrument is placed in a horizontal section of the horizontal water injection well, and can effectively reduce the production cost of a construction unit.
The invention provides a horizontal water injection well dynamic monitoring system which comprises a water injection well and a dynamic monitoring device arranged in the water injection well, wherein the water injection well comprises a well body structure and a christmas tree, the well body structure is arranged below the christmas tree, the well body structure comprises a sleeve and an oil pipe, the sleeve and the oil pipe are connected with the christmas tree, the oil pipe is arranged in the sleeve, the oil pipe comprises a vertical section, a bending section and a horizontal section, the bending section is arranged between the vertical section and the horizontal section, the dynamic monitoring device is arranged in the oil pipe, the dynamic monitoring device comprises a testing instrument and a power umbrella fixedly connected with the testing instrument, the cross section area of the power umbrella is larger than that of the testing instrument, and the power umbrella drives the testing instrument to move from the vertical section to the horizontal section under the driving of a driving device.
According to the horizontal water injection well dynamic monitoring system, the power umbrella is fixedly connected with the testing instrument in a threaded connection mode.
In the horizontal water injection well dynamic monitoring system, optionally, the central line of the power umbrella coincides with the central line of the testing instrument.
The dynamic monitoring system for the horizontal water injection well comprises a power umbrella, wherein the power umbrella is fixed on the upper part, the middle part or the lower part of the testing instrument.
According to the dynamic monitoring system for the horizontal water injection well, the cross section of the power umbrella is round, square or triangular.
The dynamic monitoring system for the horizontal water injection well is characterized in that the dynamic monitoring system for the horizontal water injection well is a rubber dynamic umbrella, a resin dynamic umbrella or a metal dynamic umbrella.
The horizontal water injection well dynamic monitoring system as described above, optionally, the christmas tree comprises a water injection line and a test line connected to the oil pipe and a water return line connected to the casing.
The horizontal water injection well dynamic monitoring system as described above, optionally, the driving device includes a water injection station and a water injection pump for controlling water injection intensity of the water injection station, the water injection station is connected with the water injection pipeline, and the water injection pump is disposed on the water injection pipeline.
The dynamic monitoring system for the horizontal water injection well, as described above, optionally, further comprises a controller, wherein the controller is connected with the test instrument through a test cable, and the test cable is connected with the test instrument through the test pipeline.
The horizontal water injection well dynamic monitoring system is characterized in that the water return pipeline is connected with a wastewater collecting device.
The invention provides a dynamic monitoring system of a horizontal water injection well, which comprises the water injection well and a dynamic monitoring device arranged in the water injection well, wherein the water injection well comprises a well body structure and a christmas tree, the well body structure is arranged below the christmas tree, the well body structure comprises a sleeve and an oil pipe, the sleeve and the oil pipe are connected with the christmas tree, the oil pipe is arranged in the sleeve, the oil pipe comprises a vertical section, a bending section and a horizontal section, the bending section is arranged between the vertical section and the horizontal section, the dynamic monitoring device is arranged in the oil pipe, the dynamic monitoring device comprises a testing instrument and a power umbrella fixedly connected with the testing instrument, the cross section of the power umbrella is larger than that of the testing instrument, and the power umbrella drives the testing instrument to move from the vertical section to the horizontal section under the driving of a driving device. According to the invention, the power umbrella is connected to the testing instrument, the cross section area of the power umbrella is larger than that of the testing instrument, and the acting force acting on the power umbrella is larger than that directly acting on the testing instrument under the driving of the driving device, so that the driving force acting on the testing instrument of the driving device can be greatly enhanced through the power umbrella, and the testing instrument is driven to move from the vertical section to the horizontal section. When the system is used, the driving force applied by the driving device is increased, so that the test instrument is not easy to be blocked when being placed in the horizontal section of the water injection well, and the power umbrella is adopted to replace the crawling robot, so that the production cost of a construction unit can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a dynamic monitoring system for a horizontal water injection well according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a well bore structure provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of a tree according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dynamic monitoring device according to an embodiment of the present invention;
FIG. 5 is a simplified diagram of a powered umbrella according to one embodiment of the present invention;
fig. 6 is a schematic diagram of a driving device according to an embodiment of the present invention.
Reference numerals:
100-water injection well, 110-well structure;
111-casing 1111-perforating section;
112-oil pipe 1121-vertical section;
1122-bent section 1123-horizontal section;
120-christmas tree, 121-water injection pipeline;
1211-production valve, 122-test line;
1221-test valve, 123-water return line;
1231-sleeve valve, 200-dynamic monitoring device;
210-test instrument, 220-power umbrella;
2201-via, 230-test cable;
240-controller, 310-water injection station;
320-water injection pump.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The following embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, directly connected, indirectly connected via an intermediate medium, or in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are merely used for convenience in describing the various elements and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Petroleum is a complex mixture of gaseous, liquid and solid hydrocarbon compounds that exist in nature and consist of small amounts of impurities. The oil and gas exists in the oil and gas reservoir in a dispersed state after the formation of the crust, and then enters the reservoir through migration and is accumulated in the geological layer with good preservation conditions to form the oil and gas reservoir. Oil extraction is a process of excavating and extracting oil in a reservoir where the oil is stored, the reservoir having a storage space allowing the flow of oil gas therethrough, the reservoir space including pores between rock chips, cracks in rock cracks, cavities formed by erosion, etc., the size, distribution and communication of the voids in the reservoir space affecting the flow of oil and gas, thereby determining the characteristics of oil and gas extraction.
In the petroleum exploitation process, oil gas flows into the bottom of a well from a reservoir, then rises to a wellhead from the bottom of the well, flows into a collection station from the wellhead, and flows into an oil and gas main station and is transferred out of a mining area after separation and dehydration treatment.
Oil recovery can be roughly divided into three stages:
Primary oil recovery usually depends on natural energy such as rock expansion, side water driving, gravity, natural gas expansion and the like, and the natural energy is mainly utilized in the stage to enable petroleum in a reservoir to be lifted out of a well through an oil pipe, however, as crude oil and natural gas are continuously produced, the volumes of fluid in reservoir rock and stratum are gradually expanded, elastic energy is gradually released, and the average recovery rate of petroleum in the stage is only 15-20%.
The secondary oil extraction mainly increases the pressure of an oil layer by means of water injection, gas injection and the like, so that the oil well can continue to produce oil after the oil well stops spraying. The water injection exploitation is to inject water into the oil reservoir through a special injection well to maintain or restore the pressure of the oil reservoir, so that the oil reservoir forms a strong driving force to improve the exploitation speed and the recovery ratio of the oil reservoir, and the gas injection exploitation is to reduce the interfacial tension and improve the permeability by mainly utilizing the functions of viscosity reduction, expansion, phase mixing, molecular diffusion and the like of injected gas, thereby improving the oil recovery ratio of an oil field. Because of the heterogeneity of the formation, the injection fluid typically flows along a less resistive path to the well, while the oil in the relatively more resistive areas, as well as some of the oil adsorbed by the rock, remains unexplored, and thus the recovery of the secondary recovery stage remains limited.
The tertiary oil recovery mainly adopts various physical and chemical methods to change the viscosity and the adsorptivity of crude oil to rock, thereby increasing the flowability of the crude oil and further improving the recovery rate of the crude oil. The tertiary oil recovery method mainly comprises a thermal oil recovery method, a chemical oil displacement method, a mixed phase oil displacement method, a microbial oil displacement method and the like. The oil recovery method mainly utilizes a mode of reducing the viscosity of crude oil to improve the recovery ratio, wherein steam huff and puff is a common oil recovery method, a certain amount of steam is injected into an oil well and heat energy of the steam is diffused to an oil layer, so that the viscosity of the crude oil is greatly reduced, the flowing capability of the crude oil is improved, the viscosity ratio of stratum water is increased, the viscosity ratio of the crude oil to the stratum water is changed, the difference between the flowing capability of water in the stratum and the flowing capability of the oil is reduced, the adsorbability of the crude oil to rock is reduced, the oil displacement efficiency is improved, the mixed phase oil displacement method mainly utilizes the injection of natural gas, carbon dioxide and other gases to generate mixed phases with the crude oil, so that the viscosity of the crude oil and the adsorbability of the rock are reduced, and the microorganism oil displacement method utilizes microorganisms and metabolites thereof to crack heavy hydrocarbons and paraffin, so that macromolecules of the petroleum are changed into small molecules, and crude oil soluble gases are generated through metabolism, so that the viscosity of the crude oil is reduced, and the fluidity of the crude oil is increased, and the purpose of improving the crude oil recovery ratio is achieved.
In the petroleum and natural gas exploitation process, the stratum energy of the oil and gas well is continuously attenuated along with the exploitation. In order to ensure smooth exploitation, a certain measure is needed to maintain the stratum energy, wherein water injection is an important measure for maintaining the stratum pressure of an oil and gas well, accelerating the recovery speed and improving the recovery ratio. When the stratum energy is maintained by adopting a water injection mode, corresponding dynamic monitoring work is required to be carried out, and whether injected water enters a designed horizon, whether an expected oil displacement effect is achieved, whether an injection allocation scheme is reasonable or not and the like are judged by monitoring corresponding parameters.
In the prior art, a testing instrument is generally put into a water injection well, and the testing instrument is used for monitoring relevant parameters in the water injection process to realize dynamic monitoring of the water injection process. For a horizontal water injection well, a test instrument cannot enter a horizontal section of the horizontal water injection well by means of gravity, and at the moment, the test instrument needs to be placed into the horizontal section of the horizontal water injection well by using external force, and a crawling robot is generally used for assisting the test instrument to move towards the horizontal section of the horizontal water injection well in the prior art.
However, because some impurities are inevitably remained in the oil pipe in the production process of the oil gas well, the crawling robot is extremely easy to be blocked when passing through the road section, and in addition, the crawling robot is high in manufacturing cost, so that the production cost of a construction unit is increased.
In order to overcome the defects in the prior art, the invention aims to provide a dynamic monitoring system for a horizontal water injection well, which is not easy to be blocked when a test instrument is placed in a horizontal section of the horizontal water injection well, and can effectively reduce the production cost of a construction unit.
The present invention will be described in detail below with reference to the accompanying drawings so that those skilled in the art can more precisely understand the present invention.
FIG. 1 is a schematic diagram of a dynamic monitoring system for a horizontal water injection well according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of a well structure according to an embodiment of the present invention, fig. 3 is a schematic diagram of a christmas tree according to an embodiment of the present invention, fig. 4 is a schematic diagram of a dynamic monitoring device according to an embodiment of the present invention, fig. 5 is a schematic diagram of a power umbrella according to an embodiment of the present invention, fig. 6 is a schematic diagram of a driving device according to an embodiment of the present invention, and please refer to fig. 1-6. The embodiment provides a dynamic monitoring system of a horizontal water injection well, which comprises the water injection well 100 and a dynamic monitoring device 200 arranged in the water injection well 100, wherein the water injection well 100 comprises a well structure 110 and a christmas tree 120, the well structure 110 is arranged below the christmas tree 120, the well structure 110 comprises a sleeve 111 and an oil pipe 112, the sleeve 111 and the oil pipe 112 are connected with the christmas tree 120, the oil pipe 112 is arranged in the sleeve 111, the oil pipe 112 comprises a vertical section 1121, a bending section 1122 and a horizontal section 1123, the bending section 1122 is arranged between the vertical section 1121 and the horizontal section 1123, the dynamic monitoring device 200 is arranged in the oil pipe 112, the dynamic monitoring device 200 comprises a testing instrument 210 and a power umbrella 220 fixedly connected with the testing instrument 210, the cross section of the power umbrella 220 is larger than the cross section of the testing instrument 210, and the power umbrella 220 drives the testing instrument 210 to move from the vertical section 1121 to the horizontal section 1123 under the driving of a driving device.
Specifically, the water injection well 100 in this embodiment is an oil well that is not enough to supply normal production with formation pressure during production. The water injection well 100 includes a horizontal section, and the perforated section 1111 of the casing 111 is disposed at a lower portion of the horizontal section, which is not easy to place the test instrument 210. The structure of the water injection well 100 is the same as that of the water injection well in the prior art, and comprises a well body structure 110 and a christmas tree 120, wherein the well body structure 110 is arranged below the christmas tree 120, the well body structure 110 comprises a casing 111 and an oil pipe 112, the casing 111 and the oil pipe 112 are connected with the christmas tree 120, the oil pipe 112 is arranged in the casing 111, and an oil sleeve annulus is formed between the casing 111 and the oil pipe. The oil pipe 112 includes a vertical section 1121, a curved section 1122, and a horizontal section 1123, the curved section 1122 being disposed between the vertical section 1121 and the horizontal section 1123, where the curved section 1122 is formed by a gradual transition from the vertical section 1121 to the horizontal section 1123 with a small degree of curvature in each path. The curved section 1122 is also where impurities in the tubing are prone to build up and the test instrument 210 becomes plugged through this section Shi Yi. The bottom of the casing 111 is provided with a perforation section 1111, the perforation section 1111 is connected with the stratum, and water injected through the oil pipe 112 flows into the stratum through the perforation section 1111, thereby supplementing the energy of the stratum to maintain the normal production.
The testing device 200 of the present embodiment includes a testing instrument 210 and a power umbrella 220 fixedly connected to the testing instrument 210, wherein the testing instrument 210 and the power umbrella 220 are disposed in the oil pipe 112, and the cross-sectional area of the power umbrella 220 should be smaller than the diameter of the oil pipe. Meanwhile, in the present embodiment, the cross-sectional area of the power umbrella 220 is set to be larger than the cross-sectional area of the test instrument 210, and according to the principle that the force is equal to the product of the pressure and the surface area, increasing the cross-sectional area of the power umbrella 220 is beneficial to improving the driving force applied to the power umbrella 220 by the driving device under the same driving pressure. Under the drive of the driving device, the power umbrella 220 drives the testing instrument 210 to move from the vertical section 1121 to the horizontal section 1123.
In use of this embodiment, the test instrument 210 and the power umbrella 220 enter the interior of the tubing 112 through corresponding inlets on the tree 120, and within the vertical section 1121 of the tubing 112, the test instrument 210 and the power umbrella 220 can be moved downward by their own weight. When passing through the curved section 1122, the force applied by the test instrument 210 and the power umbrella 220 cannot be continuously moved only by the gravity of the test instrument 210 and the power umbrella 220, and at this time, the power umbrella 220 can be applied with a force through the driving device, and a larger driving force can be applied to the test instrument 210 due to the larger cross-sectional area of the power umbrella 220, and when encountering a road section with impurities, the force applied by the power umbrella 220 can be increased through increasing the output driving pressure, and then the road section with impurities can be passed through. After the test instrument 210 and the power umbrella 220 enter the horizontal section 1123, the driving force of the driving device can be stably output, so that the test instrument 210 reaches a designated position to monitor various parameters during water injection.
The water injection well dynamic monitoring system provided by the embodiment comprises a water injection well 100 and a dynamic monitoring device 200 arranged in the water injection well 100, wherein the water injection well 100 comprises a well body structure 110 and a christmas tree 120, the well body structure 110 is arranged below the christmas tree 120, the well body structure 110 comprises a sleeve 111 and an oil pipe 112, the sleeve 111 and the oil pipe 112 are connected with the christmas tree 120, the oil pipe 112 is arranged in the sleeve 111, the oil pipe 112 comprises a vertical section 1121, a bending section 1122 and a horizontal section 1123, the bending section 1122 is arranged between the vertical section 1121 and the horizontal section 1123, the dynamic monitoring device 200 is arranged in the oil pipe 112, the dynamic monitoring device 200 comprises a testing instrument 210 and a power umbrella 220 fixedly connected with the testing instrument 210, the cross section of the power umbrella 220 is larger than the cross section of the testing instrument 210, and the power umbrella 220 drives the testing instrument 210 to move from the vertical section 1121 to the horizontal section 1123 under the driving of a driving device. In this embodiment, by connecting the power umbrella 220 to the testing apparatus 210, the cross-sectional area of the power umbrella 220 is larger than that of the testing apparatus 210, and the acting force acting on the power umbrella 220 is larger than that directly acting on the testing apparatus 210 under the driving of the driving device, so that the driving force acting on the testing apparatus 210 of the driving device can be greatly enhanced by the power umbrella 220, and the testing apparatus 210 is driven to move from the vertical section 1121 to the horizontal section 1123. When the system of the embodiment is used, the driving force applied by the driving device can be increased, so that the test instrument 210 is not easy to be blocked when being placed in the horizontal section 1123 of the water injection well, and the power umbrella 220 is adopted to replace the crawling robot, so that the production cost of a construction unit can be effectively reduced.
Further, in this embodiment, the power umbrella 220 and the test instrument 210 may be connected by any suitable connection, for example, in an alternative embodiment, the power umbrella 220 and the test instrument 210 may be fixedly connected by a threaded connection.
Further, after the power umbrella 220 is connected with the testing instrument 210, the center line of the power umbrella 220 coincides with the center line of the testing instrument 210. So that the force exerted by the powered umbrella 220 on the test instrument 210 is more uniform.
Further, the power umbrella 220 of the present embodiment may be fixed to any one of the upper, middle or lower portions of the test instrument 210.
Further, the cross section of the power umbrella 220 may be circular, square, triangular or other irregular shape, which is not further limited in this embodiment. The power umbrella 220 can be designed according to the size of the oil pipe 112 to be lowered, and the power umbrella 220 with corresponding size can be selected according to the oil pipes 112 with different diameters.
Further, the material of the power umbrella 220 is not limited in this embodiment, but the power umbrella 220 should have a certain strength to resist the water pressure destructive force, for example, the power umbrella 220 may be selected from a rubber power umbrella, a resin power umbrella or a metal power umbrella.
The tree 120 in this embodiment includes a water injection line 121 and a test line 122 connected to the tubing 112 and a return line 123 connected to the casing 111. The water injection pipeline 121 is provided with a production valve 1211, the production valve 1211 is used for controlling the opening and closing of the water injection pipeline 121 and the water flow in the water injection pipeline, the test pipeline 122 is provided with a test valve 1221, the power umbrella 220 and the test instrument 210 can enter the oil pipe 112 by opening the test valve 1221, the water return pipeline 123 is provided with a sleeve valve 1231, and the sleeve valve 1231 is used for controlling the opening and closing of the water return pipeline 123 and the water flow in the water return pipeline 123.
Further, the driving device of the present embodiment includes a water injection station 310 and a water injection pump 320 for controlling the water injection intensity of the water injection station 310, the water injection station 310 is connected to the water injection line 121, and the water injection pump 320 is disposed on the water injection line 121.
Further, the dynamic monitoring device 200 of the present embodiment further includes a controller 240, where the controller 240 is connected to the testing instrument 210 through the testing cable 230 to collect measurement data of the testing instrument 210, so as to implement a real-time monitoring function. Test cable 230 passes through test line 122 to connect test instrument 210, and specifically, power umbrella 220 of this implementation connects in the upper end of test instrument 210, is equipped with the via hole 2201 that supplies test cable 230 to pass through on power umbrella 220, and test cable 230 passes through this via hole 2201 back to connect test instrument, still can set up sealing device between this via hole 2201 and test cable 230 to guarantee sealedly.
Further, the water return line 123 of the present embodiment may be connected with a waste water collecting device to collect the flushing water discharged from the oil jacket annulus, thereby preventing pollution.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.
Claims (5)
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| CN118275153B (en) * | 2024-05-30 | 2024-08-16 | 威飞海洋装备制造有限公司 | Shallow water injection tree test system and method based on hydraulic power |
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| CN203822220U (en) * | 2014-04-18 | 2014-09-10 | 中国石油化工股份有限公司 | Controllable water injection propeller for horizontal well testing instrument |
| CN208718634U (en) * | 2018-07-17 | 2019-04-09 | 中国石油天然气股份有限公司 | Dynamic monitoring system for horizontal water injection well |
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| FR2674284B1 (en) * | 1991-03-20 | 1997-12-26 | Geostock | PROBE FOR DETERMINING IN PARTICULAR THE INJECTIVITY OF A PETROFLOWER WELL AND MEASURING METHOD USING THE SAME. |
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| CN201810298U (en) * | 2010-09-15 | 2011-04-27 | 中国石油天然气股份有限公司 | Horizontal well liquid production section testing device |
| CN203822220U (en) * | 2014-04-18 | 2014-09-10 | 中国石油化工股份有限公司 | Controllable water injection propeller for horizontal well testing instrument |
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