CN117211693B - Oil well jet flow test and water shutoff finding combined pipe column and use method - Google Patents
Oil well jet flow test and water shutoff finding combined pipe column and use method Download PDFInfo
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- CN117211693B CN117211693B CN202311477187.XA CN202311477187A CN117211693B CN 117211693 B CN117211693 B CN 117211693B CN 202311477187 A CN202311477187 A CN 202311477187A CN 117211693 B CN117211693 B CN 117211693B
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- 239000003795 chemical substances by application Substances 0.000 claims description 14
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Abstract
The invention relates to the technical field of oil and gas field exploitation test, in particular to an oil well jet flow test and water shutoff finding combined pipe column and a use method thereof. The technical proposal is as follows: the lower end of the oil pipe is connected with a multi-nozzle coherent jet device, a compression packer is arranged at the lower side of the multi-nozzle coherent jet device, a sectional liquid collector is arranged at the lower side of the compression packer, and a single flow valve is arranged at the lower end of the sectional liquid collector; the upper inner cavity of the pumping assembly of the multi-nozzle cluster ejector is provided with a mixed liquid channel, the middle inner cavity is provided with a fisheable combined tester, and a plurality of jet pumps are arranged in the middle clamping wall of the pumping assembly; a stratum fluid channel is arranged in the lower cavity of the pumping assembly. The beneficial effects are that: the invention can realize the continuity test of parameters such as liquid yield, water content, pressure, temperature and the like under the oil well pump, can accurately measure the liquid yield and water content profile of the oil well, can more intuitively observe and actually measure the output condition of the segmented producing layer on the ground, can more simply and conveniently find water and block water, and can rapidly verify the effect.
Description
Technical Field
The invention relates to the technical field of oil and gas field exploitation test, in particular to an oil well jet flow test and water shutoff finding combined pipe column and a use method thereof.
Background
At present, in the exploitation test work of an oil-gas field, the existing test-pumping production, the production fluid profile test, the water-finding and water-blocking pipe column and the existing process are independent and not yet combined, the pipe column with different functions is required to be started to finish, the construction period is long, the cost is high, the existing production fluid profile and the measurement of parameters under a pump in the production process are required to be started to a special test pipe column, the working procedure is complex, the workload is large, the time consumption is long, and the accuracy is limited by a plurality of well condition factors;
when the existing dragging instrument is used for finding water and a plurality of groups of instruments are connected in series for finding water, the existing dragging instrument is limited by the difference factor between water stored in a stratum near a well and actual water produced, and the test result and the actual water produced have larger difference, so that the accuracy is low.
In addition, the high-pressure short and small water outlet layer is difficult to confirm, and the heavy oil well, the wax precipitation well and the strong sand outlet well with large oil-water viscosity ratio difference have larger construction safety risks and false judgment risks of false test results, so that construction failure is easy to cause.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides an oil well jet flow test and water shutoff finding combined pipe column and a use method thereof, which can realize the continuity test of parameters such as liquid yield, water content, pressure, temperature and the like under an oil well pump, effectively overcome the defects of poor repeated stability and low accuracy of the conventional test process, can more accurately measure the section of the liquid yield and the water content of an oil well, can more intuitively observe and measure the sectional output condition on the ground, can more simply and conveniently find water to shutoff and can rapidly verify the effect.
The invention relates to an oil well jet flow test and water shutoff finding combined pipe column, which has the technical scheme that: the device comprises an oil pipe, a compression packer, a multi-nozzle bundling jet device, a sectional liquid collector and a single-flow valve, wherein the lower end of the oil pipe is connected with the multi-nozzle bundling jet device; the multi-nozzle cluster jet device comprises a pumping assembly, a mixed liquid channel, a draggable combined tester, a diffusion pipe, a throat pipe, nozzles, springs and sliding sleeves, wherein the mixed liquid channel is arranged in an inner cavity at the upper part of the pumping assembly; the lower cavity of the pumping assembly is provided with a stratum fluid channel, and the lower end of the pumping assembly is provided with a lower joint.
Preferably, the middle inner cavity of the pumping assembly is provided with a tester installation channel, the middle part of the tester installation channel is provided with a limiting step, and the fisheable combined tester is seated on the limiting step.
Preferably, the sectional liquid collector comprises a central tube, an upper leather cup, a liquid collecting sliding sleeve, a liquid collecting spring and a lower leather cup, wherein the upper leather cup is arranged on the outer wall of the upper side of the central tube, the lower leather cup is arranged on the outer wall of the lower side of the central tube, a liquid inlet is formed in the middle of the central tube, the liquid collecting sliding sleeve is arranged on the inner side of the liquid inlet, the liquid collecting spring is arranged at the lower end of the liquid collecting sliding sleeve, and the lower end of the liquid collecting spring is seated on the supporting seat.
Preferably, a limiting block is arranged on the inner wall of the central tube above the liquid collecting sliding sleeve, and sealing rings are respectively arranged on the upper side and the lower side of the liquid inlet.
Preferably, the bowl-shaped structure of the upper leather cup and the bowl-shaped structure of the lower leather cup are opposite in direction.
Preferably, the outer diameter of the lower end of the liquid collecting sliding sleeve is larger than the outer diameter of the upper main body, and the inner diameter of the lower part of the central tube is larger than the inner diameter of the upper part.
Preferably, the above-mentioned can drag for formula combination tester includes salvage head, seals and separates cylinder, conical seat, combination tester, seal and separate the top of cylinder and be equipped with salvage head, seal and separate the lower part of cylinder and be equipped with the conical seat, through the spacing step cooperation of conical seat and tester installation passageway, at seal the lower extreme installation combination tester that separates the cylinder, just combination tester is located the lower part cavity of tester installation passageway.
Preferably, the outer wall of the sealing cylinder is provided with more than one group of sealing rings, the outer diameter of the sealing cylinder is larger than that of the combined tester, and the sealing cylinder is connected and matched with the upper cavity of the tester installation channel through the sealing rings.
Preferably, the combined tester is provided with a pressure module, a temperature module, a water-containing module, a battery module and a flow module.
The invention relates to a use method of an oil well jet flow test and water shutoff finding combined pipe column, which comprises the following steps:
1. running a down-hole tubular string: the method comprises the steps of (1) setting an oil well jet test and water shutoff combined pipe column into an oil well through an oil pipe, aligning a segmented liquid collector to the position of an oil layer at the lower part of the oil well, arranging a compression type packer at the upper part of the segmented liquid collector, starting a ground power liquid pump, enabling power liquid to flow downwards along an annulus between the oil pipe and a sleeve, expanding the compression type packer by one part of power liquid, enabling the other part of power liquid to enter a power liquid inlet channel through a plurality of power liquid inlet holes of a multi-nozzle cluster jet device, spraying through each nozzle, driving stratum liquid from the stratum liquid channel to mix in a throat, collecting the stratum liquid into a mixed liquid channel through a diffusion pipe, and further rising to the ground through the oil pipe connected with the upper part; because the middle part of the multi-nozzle cluster jet device is provided with the draggable combination tester, the pressure, temperature, water content and flow parameters of the section of produced liquid are recorded through the pressure module, the temperature module, the water content module and the flow module which are arranged at the lower end of the draggable combination tester, the operation of the lifting sectional liquid collector is carried out after the water content and the discharge capacity of the produced liquid are stable, the test of the distance of the next sectional liquid collector is carried out, the operation is repeated circularly, and the suction and the output parameters of the stratum at the whole well section of the oil well are tested;
2. salvaging and salvaging type combined tester: after the test is completed, throwing the fisher into the oil pipe and grabbing a salvaging head of the salvaging type combined tester, and then taking the fisher and the salvaging type combined tester out of the ground together through hydraulic throwing or steel wire salvaging, reading and arranging data recorded in the salvaging type combined tester, and arranging a liquid production section, a flow pressure section, a temperature section and a water-containing section of the whole well section of the oil well; and then, comparing with the ground measured output data, identifying and evaluating the actual productivity and output conditions of each layer section of the oil well, and completing the testing and water finding work.
Preferably, in the first step, when water shutoff construction is required:
according to the water finding result of the test, when the upper water outlet layer is required to be plugged, the jet test of the oil drain well and water finding and plugging are combined to form a tubular column, the segmented liquid collector is aligned to the lower boundary of the upper water outlet layer, a wellhead gate of an oil pipe is closed, a water plugging agent is injected into the annular space of the oil pipe and a sleeve pipe in ground operation until the water plugging agent is injected into the upper water outlet layer, and then the water plugging construction of the upper water outlet layer can be realized after well closing and waiting for coagulation; if the lower water outlet layer is to be plugged, the lower oil well jet flow test and water shutoff finding combined pipe column is used, the segmented liquid collector is aligned to the upper boundary of the lower water outlet layer, a water shutoff agent is injected into an oil pipe in ground operation, enters the annular space of the oil pipe and a sleeve through a check valve arranged at the bottom of the oil pipe, enters the lower water outlet layer under the isolation of a lower leather cup of the segmented liquid collector, and then, the water shutoff construction of the lower water outlet layer can be realized after the well is closed and the water shutoff agent is solidified.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can realize the continuous test of parameters such as liquid yield, water content, pressure, temperature and the like under the oil well pump by adopting the disposable tubular column, effectively overcomes the defects of more interfered factors and low accuracy of the existing test process, can more accurately measure the section of the liquid yield and the water content of the oil well, can more intuitively observe and measure the sectional output condition on the ground, can more conveniently perform water finding and water shutoff, and can rapidly verify the effect; the invention adopts the primary pipe column, which not only can accurately measure and find water, but also can block water, and can realize trial production and liquid production profile test, thereby having multiple purposes, high efficiency, simplicity, economy and practicability, and being applicable to various well structures and working condition wells;
2. the multi-nozzle cluster jet device has an integrated device with a unique structure, can implement testing and water shutoff functions, has a large jet displacement range, is anti-blocking, can automatically test pump efficiency, is convenient to adjust, can be fished by adopting hydraulic casting or steel wire, is more suitable for well conditions such as large water content change rate, thick oil, sand discharge, large interlayer difference and the like, and is also more suitable for construction of oil testing trial production, sand discharge oil production and water shutoff operation of horizontal wells and highly-inclined wells;
3. according to the invention, the upper leather cup and the lower leather cup are respectively arranged at the two ends of the outer wall of the segmented liquid collector, the unidirectional liquid inlet hole is arranged in the middle of the segmented liquid collector, and data in an oil well can be sequentially measured in segments by dragging the oil pipe to move, so that the data such as water content, liquid production profile, temperature, pressure and the like in the oil well can be determined, the actual productivity and output conditions of each layer section of the oil well can be accurately identified and evaluated, and the quality of test data is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a multi-nozzle coherent jet device;
FIG. 3 is a schematic view of section C-C of FIG. 2;
FIG. 4 is a schematic view in section B-B of FIG. 2;
FIG. 5 is a schematic view in section A-A of FIG. 2;
FIG. 6 is a schematic diagram of a segmented liquid extractor;
FIG. 7 is a schematic diagram of the structure of a fisheable combination tester;
FIG. 8 is a schematic diagram of a second embodiment of a segmented liquid extractor;
FIG. 9 is a schematic diagram of the structure of the plugging upper effluent layer;
FIG. 10 is a schematic view of the structure of the plugging lower water outlet layer;
in the upper graph: the multi-nozzle cluster jet device comprises a sleeve 1, an oil pipe 2, a multi-nozzle cluster jet device 3, a compression packer 4, a segmented liquid collector 5, a uniflow valve 6, an upper water outlet layer 7, a lower water outlet layer 8, a pumping assembly 3.1, a mixed liquid channel 3.2, a fisheable combined tester 3.3, a diffusion pipe 3.4, a throat 3.5, a nozzle 3.6, a spring 3.7, a sliding sleeve 3.8, a stratum liquid channel 3.9, a jet pump diffusion channel 3.10, a tester installation channel 3.11, a power liquid inlet channel 3.12, a power liquid inlet hole 3.13, a lower joint 3.14, a central pipe 5.1, an upper leather cup 5.2, a liquid collecting sliding sleeve 5.3, a liquid collecting spring 5.4, a lower leather cup 5.5, a liquid inlet hole 5.6, a sealing ring 5.7, a supporting seat 5.8, a limiting block 5.9, a salvaging head 3.3.1, a sealing column 3.3.2, a cone seat 3.3.3.3.3, a combined tester 3.4, a pressure cell module 623.4, a pressure module 6235, a water-containing module, a flow rate module, and a sealing ring module.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
1, referring to fig. 1-7, the oil well jet testing and water shutoff combined pipe column comprises an oil pipe 2, a compression packer 4, a multi-nozzle cluster jet device 3, a segmented liquid collector 5 and a check valve 6, wherein the lower end of the oil pipe 2 is connected with the multi-nozzle cluster jet device 3, the compression packer 4 is arranged at the lower side of the multi-nozzle cluster jet device 3, the segmented liquid collector 5 is arranged at the lower side of the compression packer 4, and the check valve 6 is arranged at the lower end of the segmented liquid collector 5; the multi-nozzle cluster jet device 3 comprises a pumping assembly 3.1, a mixed liquid channel 3.2, a fished combined tester 3.3, a diffusion pipe 3.4, a throat pipe 3.5, a nozzle 3.6, a spring 3.7 and a sliding sleeve 3.8, wherein the mixed liquid channel 3.2 is arranged in an inner cavity at the upper part of the pumping assembly 3.1, the fished combined tester 3.3 is arranged in the inner cavity at the middle part of the pumping assembly 3.1, a plurality of jet pump diffusion channels 3.10 are arranged in the middle clamping wall of the pumping assembly 3.1, the lower side of each jet pump diffusion channel 3.10 is connected with the diffusion pipe 3.4 and the throat pipe 3.5, the lower part of each throat pipe 3.5 is respectively provided with a nozzle 3.6, the lower part of each nozzle 3.6 is provided with a power liquid inlet channel 3.12, the spring 3.7 and the sliding sleeve 3.8 are arranged in the power liquid inlet channel 3.12, and the lower part of the power liquid inlet channel 3.12 is provided with a power liquid inlet 3.13; a stratum fluid channel 3.9 is arranged in the lower inner cavity of the pumping assembly 3.1, and a lower joint 3.14 is arranged at the lower end of the pumping assembly 3.1.
Wherein, foretell pump assembly 3.1's middle part inner chamber is equipped with tester installation passageway 3.11, is equipped with spacing step at tester installation passageway 3.11's middle part, can drag for formula combination tester 3.3 and sit on spacing step.
Referring to fig. 6, the sectional liquid collector 5 of the invention comprises a central tube 5.1, an upper leather cup 5.2, a liquid collecting sliding sleeve 5.3, a liquid collecting spring 5.4 and a lower leather cup 5.5, wherein the upper leather cup 5.2 is arranged on the outer wall of the upper side of the central tube 5.1, the lower leather cup 5.5 is arranged on the outer wall of the lower side of the central tube 5.1, a liquid inlet 5.6 is arranged in the middle of the central tube 5.1, the liquid collecting sliding sleeve 5.3 is arranged on the inner side of the liquid inlet 5.6, the liquid collecting spring 5.4 is arranged at the lower end of the liquid collecting sliding sleeve 5.3, and the lower end of the liquid collecting spring 5.4 is seated on a supporting seat 5.8.
The limiting block 5.9 is arranged on the inner wall of the central tube 5.1 above the liquid collecting sliding sleeve 5.3, and sealing rings 5.7 are respectively arranged on the upper side and the lower side of the liquid inlet 5.6.
The bowl-shaped structure of the upper cup 5.2 and the bowl-shaped structure of the lower cup 5.5 are opposite.
The outer diameter of the lower end part of the liquid collecting sliding sleeve 5.3 is larger than the outer diameter of the upper main body, and the inner diameter of the lower part of the central tube 5.1 is larger than the inner diameter of the upper part.
Referring to fig. 7, the fisheable combined tester 3.3 of the invention comprises a fishing head 3.3.1, an isolating column 3.3.2, a conical seat 3.3.3 and a combined tester 3.3.4, wherein the fishing head 3.3.1 is arranged at the top of the isolating column 3.3.2, the conical seat 3.3.3 is arranged at the lower part of the isolating column 3.3.2, the combined tester 3.3.4 is arranged at the lower end of the isolating column 3.3.2 through the cooperation of the conical seat 3.3.3 and the limiting step of the tester installation channel 3.11, and the combined tester 3.3.4 is positioned in the lower cavity of the tester installation channel 3.11.
The outer wall of the excluder column body 3.3.2 is provided with more than one group of sealing rings 3.3.5, the outer diameter of the excluder column body 3.3.2 is larger than that of the combined tester 3.3.4, and the excluder column body 3.3.2 is connected and matched with the upper cavity of the tester installation channel 3.11 through the sealing rings 3.3.5.
The combined tester 3.3.4 is provided with a pressure module 3.3.4.1, a temperature module 3.3.4.2, a water-containing module 3.3.4.3, a battery module 3.3.4.4 and a flow module 3.3.4.5, and is used for measuring data such as pressure, temperature, water content, flow and the like in formation fluid.
The invention relates to a use method of an oil well jet flow test and water shutoff finding combined pipe column, which comprises the following steps:
1. running a down-hole tubular string: the method comprises the steps of (1) setting an oil well jet test and water shutoff combined pipe column into an oil well through an oil pipe 2, aligning a segmented liquid collector 5 to the position of an oil layer at the lower part of the oil well, arranging a compression packer 4 at the upper part of the segmented liquid collector 5, starting a ground power liquid pump, enabling power liquid to flow downwards along an annulus between the oil pipe 2 and a sleeve 1, expanding the compression packer 4 by a part of power liquid, enabling the other part of power liquid to enter a power liquid inlet channel 3.12 through a plurality of power liquid inlet holes 3.13 of a multi-nozzle cluster jet device 3, jetting through each nozzle 3.6, driving stratum liquid from a stratum liquid channel 3.9 to be mixed in a throat 3.5, collecting the stratum liquid into a mixed liquid channel 3.2 through a diffusion pipe 3.4, and further rising to the ground through the oil pipe 2 connected at the upper part; because the middle part of the multi-nozzle cluster jet device 3 is provided with the draggable combination tester 3.3, the pressure, temperature, water content and flow parameters of the section of produced liquid are recorded through the pressure module 3.3.4.1, the temperature module 3.3.4.2, the water content module 3.3.4.3 and the flow module 3.3.4.5 which are arranged at the lower end of the draggable combination tester 3.3, the operation of the lifting section liquid collector 5 is carried out after the water content and the discharge capacity of the produced liquid are stable, the test of the distance of the next section liquid collector 5 is carried out, and thus the operation is repeated circularly, and the suction and the output parameters of the stratum of the whole well section of the oil well are tested;
2. 3.3 parts of salvaging and salvaging type combined tester: after the test is completed, throwing the fisher into the oil pipe 2 and grabbing the salvaging head 3.3.1 of the salvaging type combined tester 3.3, and taking the fisher and the salvaging type combined tester 3.3 out of the ground together through hydraulic throwing or steel wire salvaging, so that the data recorded in the salvaging type combined tester 3.3 can be read and arranged, and further the liquid production profile, the flow pressure profile, the temperature profile and the water-containing profile of the whole well section of the oil well are arranged; and then, comparing with ground data, identifying and evaluating the actual productivity and yield conditions of each layer section of the oil well, and completing the testing and water finding work.
In the first step, when water shutoff construction is required:
according to the water finding result of the test, when the upper water outlet layer 7 is required to be plugged, referring to FIG. 9, the jet test of the lower oil drain well and water finding and plugging are combined to form a tubular column, the segmented liquid collector 5 is aligned to the lower boundary of the upper water outlet layer 7, the wellhead gate of the oil pipe 2 is closed, the water plugging agent is injected into the annular space of the oil pipe 2 and the sleeve 1 in ground operation until the water plugging agent is injected into the upper water outlet layer 7, and then the water plugging construction of the upper water outlet layer 7 can be realized after well closing and waiting for condensation; if the lower water outlet layer 8 is to be plugged, the lower oil well jet flow test and water shutoff finding are combined to form a tubular column, the segmented liquid collector 5 is aligned to the upper boundary of the lower water outlet layer 8, a water shutoff agent is injected into the oil pipe 2 during ground operation, the water shutoff agent enters the annular space of the oil pipe 2 and the sleeve 1 through a check valve 6 arranged at the bottom of the oil pipe 2, the water shutoff agent enters the lower water outlet layer 8 under the isolation of a lower leather cup 5.5 of the segmented liquid collector 5, and then the water shutoff construction of the lower water outlet layer 8 can be realized after well closing and waiting for condensation.
The embodiment 2 of the invention relates to an oil well jet flow test and water shutoff combined pipe column, which comprises an oil pipe 2, a compression packer 4, a multi-nozzle cluster jet device 3, a segmented liquid collector 5 and a single-flow valve 6, wherein the lower end of the oil pipe 2 is connected with the multi-nozzle cluster jet device 3, the compression packer 4 is arranged at the lower side of the multi-nozzle cluster jet device 3, the segmented liquid collector 5 is arranged at the lower side of the compression packer 4, and the single-flow valve 6 is arranged at the lower end of the segmented liquid collector 5; the multi-nozzle cluster jet device 3 comprises a pumping assembly 3.1, a mixed liquid channel 3.2, a fished combined tester 3.3, a diffusion pipe 3.4, a throat pipe 3.5, a nozzle 3.6, a spring 3.7 and a sliding sleeve 3.8, wherein the mixed liquid channel 3.2 is arranged in an inner cavity at the upper part of the pumping assembly 3.1, the fished combined tester 3.3 is arranged in the inner cavity at the middle part of the pumping assembly 3.1, a plurality of jet pump diffusion channels 3.10 are arranged in the middle clamping wall of the pumping assembly 3.1, the lower side of each jet pump diffusion channel 3.10 is connected with the diffusion pipe 3.4 and the throat pipe 3.5, the lower part of each throat pipe 3.5 is respectively provided with a nozzle 3.6, the lower part of each nozzle 3.6 is provided with a power liquid inlet channel 3.12, the spring 3.7 and the sliding sleeve 3.8 are arranged in the power liquid inlet channel 3.12, and the lower part of the power liquid inlet channel 3.12 is provided with a power liquid inlet 3.13; a stratum fluid channel 3.9 is arranged in the lower inner cavity of the pumping assembly 3.1, and a lower joint 3.14 is arranged at the lower end of the pumping assembly 3.1.
The difference from example 1 is that:
referring to fig. 8, the upper outer wall of the central tube 5.1 of the segmented liquid collector 5 is provided with two groups of upper leather cups 5.2, and the lower outer wall of the central tube 5.1 is provided with two groups of lower leather cups 5.5, so that better supporting and sealing effects can be achieved.
The above description is only a few preferred embodiments of the present invention, and any person skilled in the art may make modifications to the above described embodiments or make modifications to the same. Accordingly, the corresponding simple modifications or equivalent changes according to the technical scheme of the present invention fall within the scope of the claimed invention.
Claims (10)
1. The utility model provides an oil well efflux test and seek stifled water allies oneself with tubular column, includes oil pipe (2) and compression packer (4), characterized by: the multi-nozzle cluster jet device is characterized by further comprising a multi-nozzle cluster jet device (3), a segmented liquid collector (5) and a single-flow valve (6), wherein the lower end of the oil pipe (2) is connected with the multi-nozzle cluster jet device (3), the compression packer (4) is arranged at the lower side of the multi-nozzle cluster jet device (3), the segmented liquid collector (5) is arranged at the lower side of the compression packer (4), and the single-flow valve (6) is arranged at the lower end of the segmented liquid collector (5); the multi-nozzle cluster jet device (3) comprises a pumping assembly (3.1), a mixed liquid channel (3.2), a fisheable combined tester (3.3), a diffusion pipe (3.4), a throat pipe (3.5), nozzles (3.6), springs (3.7) and sliding sleeves (3.8), wherein the mixed liquid channel (3.2) is arranged in an upper inner cavity of the pumping assembly (3.1), the fisheable combined tester (3.3) is installed in a middle inner cavity, a plurality of jet pump diffusion channels (3.10) are arranged in a middle clamping wall of the pumping assembly (3.1), a diffusion pipe (3.4) and a throat pipe (3.5) are connected to the lower side of each jet pump diffusion channel (3.10), the nozzles (3.6) are respectively arranged below each throat pipe (3.5), a power liquid inlet channel (3.12) is arranged below each nozzle (3.6), the springs (3.7) and the sliding sleeves (3.8) are arranged in the power liquid inlet channel (3.12), and a power liquid inlet hole (13.12) is formed in the power liquid inlet channel below each nozzle (3.6); the lower cavity of the pumping assembly (3.1) is provided with a stratum fluid channel (3.9), and the lower end of the pumping assembly (3.1) is provided with a lower joint (3.14).
2. The oil well jet testing and water shutoff finding combined pipe column according to claim 1, wherein: the middle inner cavity of the pumping assembly (3.1) is provided with a tester installation channel (3.11), the middle part of the tester installation channel (3.11) is provided with a limiting step, and the fisheable combined tester (3.3) is seated on the limiting step.
3. The oil well jet testing and water shutoff finding combined pipe column according to claim 2, wherein: the sectional liquid collector (5) comprises a central tube (5.1), an upper leather cup (5.2), a liquid collecting sliding sleeve (5.3), a liquid collecting spring (5.4) and a lower leather cup (5.5), wherein the upper leather cup (5.2) is arranged on the outer wall of the upper side of the central tube (5.1), the lower leather cup (5.5) is arranged on the outer wall of the lower side of the central tube (5.1), a liquid inlet (5.6) is formed in the middle of the central tube (5.1), a liquid collecting sliding sleeve (5.3) is arranged on the inner side of the liquid inlet (5.6), a liquid collecting spring (5.4) is arranged at the lower end of the liquid collecting sliding sleeve (5.3), the lower end of the liquid collecting spring (5.4) is seated on a supporting seat (5.8), a limiting block (5.9) is arranged on the inner wall of the central tube (5.1) above the liquid collecting sliding sleeve (5.3), and sealing rings (5.7) are respectively arranged on the upper side and lower side of the liquid inlet (5.6).
4. The oil well jet testing and water shutoff finding combined pipe column according to claim 3, wherein: the bowl-shaped structure of the upper leather cup (5.2) and the bowl-shaped structure of the lower leather cup (5.5) are opposite in direction.
5. The oil well jet testing and water shutoff finding combined pipe column according to claim 4, wherein: the outer diameter of the lower end part of the liquid collecting sliding sleeve (5.3) is larger than the outer diameter of the upper main body, and the inner diameter of the lower part of the central tube (5.1) is larger than the inner diameter of the upper part.
6. The oil well jet testing and water shutoff finding combined pipe column according to claim 5, wherein: the combined tester comprises a salvaging head (3.3.1), a sealing cylinder (3.3.2), a conical seat (3.3.3) and a combined tester (3.3.4), wherein the salvaging head (3.3.1) is arranged at the top of the sealing cylinder (3.3.2), the conical seat (3.3.3) is arranged at the lower part of the sealing cylinder (3.3.2), the combined tester (3.3.4) is arranged at the lower end of the sealing cylinder (3.3.2) through the limit step matching of the conical seat (3.3.3) and the limit step of a tester installation channel (3.11), and the combined tester (3.3.4) is positioned in the lower cavity of the tester installation channel (3.11).
7. The oil well jet testing and water shutoff finding combined pipe column according to claim 6, wherein: the outer wall of the packing cylinder (3.3.2) is provided with more than one group of sealing rings (3.3.5), the outer diameter of the packing cylinder (3.3.2) is larger than that of the combined tester (3.3.4), and the packing cylinder (3.3.2) is connected and matched with the upper cavity of the tester installation channel (3.11) through the sealing rings (3.3.5).
8. The oil well jet testing and water shutoff finding combined pipe column according to claim 7, wherein: the combined tester (3.3.4) is provided with a pressure module (3.3.4.1), a temperature module (3.3.4.2), a water-containing module (3.3.4.3), a battery module (3.3.4.4) and a flow module (3.3.4.5).
9. A method of using the well jet testing and water shutoff finding combined string of claim 8, comprising the steps of:
1. running a down-hole tubular string: the method comprises the steps of (1) setting an oil well jet test and water shutoff combined pipe column into an oil well through an oil pipe (2), aligning a segmented liquid collector (5) to the position of an oil layer at the lower part of the oil well, arranging a compression packer (4) at the upper part of the segmented liquid collector (5), starting a ground power liquid pump, enabling power liquid to flow downwards along an annulus between the oil pipe (2) and a sleeve (1), expanding the compression packer (4) by a part of power liquid, enabling the other part of power liquid to enter a power liquid inlet channel (3.12) through a plurality of power liquid inlet holes (3.13) of a multi-nozzle cluster jet device (3), then spraying out through each nozzle (3.6), driving stratum liquid from a stratum liquid channel (3.9) to be mixed in a venturi (3.5), and collecting the stratum liquid into a mixed liquid channel (3.2) through a diffusion pipe (3.4), and further lifting the stratum liquid to the ground through the oil pipe (2) connected at the upper part; because the middle part of the multi-nozzle cluster jet device (3) is provided with the draggable combined tester (3.3), the pressure module (3.3.4.1), the temperature module (3.3.4.2), the water-containing module (3.3.4.3) and the flow module (3.3.4.5) arranged at the lower end of the draggable combined tester (3.3) are used for recording the pressure, the temperature, the water content and the flow parameters of the produced liquid of the section, the operation of the lifting section liquid collector (5) is carried out after the water content and the discharge capacity of the produced liquid are stable, the test of the distance of the next section liquid collector (5) is carried out, the repeated operation is circulated, and the suction and the output parameters of the stratum of the whole section of the oil well are tested;
2. salvaging and salvaging type combined tester (3.3): after the test is finished, throwing a fisher into the oil pipe (2) and grasping a salvaging head (3.3.1) of the salvaging type combined tester (3.3), and then taking the fisher and the salvaging type combined tester (3.3) out of the ground together through hydraulic throwing or steel wire salvaging, reading and arranging data recorded in the monitoring of the salvaging type combined tester (3.3), and arranging a liquid production section, a flow pressure section, a temperature section and a water-containing section of the whole section of the oil well; and then, comparing with the ground measured output data, identifying and evaluating the actual productivity and output conditions of each layer section of the oil well, and completing the testing and water finding work.
10. The method for using the oil well jet flow test and water shutoff finding combined pipe column according to claim 9, which is characterized in that: in the first step, when water shutoff construction is needed:
according to the water finding result of the test, when the upper water outlet layer (7) is required to be plugged, the oil drain well jet flow test and water shutoff finding combined pipe column, the segmented liquid collector (5) is aligned to the lower boundary of the upper water outlet layer (7), the wellhead gate of the oil pipe (2) is closed, the water shutoff agent is injected into the annular space of the oil pipe (2) and the sleeve (1) in ground operation until the water shutoff agent is injected into the upper water outlet layer (7), and then the water shutoff construction of the upper water outlet layer (7) can be realized after well closing and waiting for condensation; if the lower water outlet layer (8) is to be plugged, the lower oil drain well jet flow test and water shutoff finding combined pipe column is used, the segmented liquid collector (5) is aligned to the upper boundary of the lower water outlet layer (8), a water shutoff agent is injected into the oil pipe (2) in a ground operation mode, the water shutoff agent enters the annular space of the oil pipe (2) and the sleeve (1) through a uniflow valve (6) arranged at the bottom of the oil pipe (2), the water shutoff agent enters the lower water outlet layer (8) under the isolation of a lower leather cup (5.5) of the segmented liquid collector (5), and then water shutoff construction of the lower water outlet layer (8) can be achieved after well shutting and condensation.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013051958A1 (en) * | 2011-10-07 | 2013-04-11 | Gapetchenko Viktor Ivanovich | Method for reviving the working condition of a well and technical complex for the implementation of same |
| CN103899581A (en) * | 2012-12-28 | 2014-07-02 | 中国石油天然气股份有限公司 | Method and device for reverse circulation production and reverse circulation hydraulic jet pump core lifting |
| CN109025915A (en) * | 2018-08-09 | 2018-12-18 | 张卫华 | A kind of full-bore under across returning combined operation of perforation and testing tubing string and its operating method |
| CN219864952U (en) * | 2023-05-09 | 2023-10-20 | 山东成林石油工程技术有限公司 | Reverse circulation jet flow blocking-removing lifting combined operation device |
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- 2023-11-08 CN CN202311477187.XA patent/CN117211693B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013051958A1 (en) * | 2011-10-07 | 2013-04-11 | Gapetchenko Viktor Ivanovich | Method for reviving the working condition of a well and technical complex for the implementation of same |
| CN103899581A (en) * | 2012-12-28 | 2014-07-02 | 中国石油天然气股份有限公司 | Method and device for reverse circulation production and reverse circulation hydraulic jet pump core lifting |
| CN109025915A (en) * | 2018-08-09 | 2018-12-18 | 张卫华 | A kind of full-bore under across returning combined operation of perforation and testing tubing string and its operating method |
| CN219864952U (en) * | 2023-05-09 | 2023-10-20 | 山东成林石油工程技术有限公司 | Reverse circulation jet flow blocking-removing lifting combined operation device |
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