CN107587869B - Underground real-time gas flow divider and system for liquid production profile logging - Google Patents
Underground real-time gas flow divider and system for liquid production profile logging Download PDFInfo
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Abstract
The invention discloses an underground real-time gas diverter for producing liquid profile logging, which relates to the field of producing liquid profile logging of oil field development and comprises an exhaust pipe; the exhaust pipe is provided with a gas flow passage structure and an exhaust pipe liquid flow passage, one end of the exhaust pipe is connected with the central pipe of the manifold umbrella, and the other end of the exhaust pipe is connected with the exhaust short circuit; a collector umbrella is fixed on the outer side pipe wall of the collector umbrella central pipe, a collector umbrella central pipe liquid flow channel is arranged in the collector umbrella central pipe, an air inlet channel and a collector umbrella central pipe liquid inlet are further arranged on the collector umbrella central pipe, the air inlet channel is located inside the collector umbrella, and the collector umbrella central pipe liquid inlet is located at the lower part of the air inlet channel; the exhaust channel is communicated with the gas flow passage structure and the gas inlet channel to form an inner exhaust channel; the umbrella edge of the collector umbrella can be attached to the well wall. And a gas splitter system. The problem of logging the liquid production profile of a low-gas production and low-liquid production well is solved.
Description
Technical Field
The invention relates to the field of liquid production profile logging in oil field development, in particular to an underground real-time gas flow divider and an underground real-time gas flow divider system for liquid production profile logging.
Background
The liquid production profile logging is an important matching technology for oil field development, and the liquid production profile logging information is an important basis for formulating and adjusting an oil field development scheme. In the development process, when the flow pressure is greater than the saturation pressure, the produced fluid of the production zone is mainly oil and water, no gas exists, and the produced fluid is in oil-water two-phase flow liquid. In the later stage of oil field development, when the flow pressure is lower than the saturation pressure, the dissolved gas in the crude oil can be separated out and exists in the form of free gas, and the occurrence of gas can make the downhole have the condition of oil-gas-water three-phase flow and make the downhole fluid have obvious changes in component, density and flow state. The existence of gas has serious influence on the in-use liquid production profile logging instrument suitable for oil-water two-phase flow, the liquid production amount and the water content of an oil well cannot be accurately measured, accurate liquid production profile logging information cannot be obtained, and the development and adjustment of an oil field are influenced. In the later stage of oil field development, the underground three-phase flow condition generally exists, and the method has important value for solving the problem of logging the output profile of the three-phase flow. Therefore, it is urgently needed to develop a new technology for improving the logging quality of the fluid production profile under the condition of simple and effective three-phase flow.
Disclosure of Invention
In view of the above, the invention provides an underground real-time gas flow divider and system for producing profile well logging, which can reduce and eliminate the influence of gas on the measurement of liquid production amount and water content, obtain more accurate production profile well logging information under the condition of oil, gas and water three phases, and solve the problem of producing profile well logging of low-yield and low-yield wells.
In a first aspect, the present invention provides a downhole real-time gas splitter for use in fluid production profile logging, comprising:
an exhaust pipe;
the exhaust pipe is provided with a gas flow passage structure and an exhaust pipe liquid flow passage, one end of the exhaust pipe is connected with the central pipe of the manifold umbrella, and the other end of the exhaust pipe is connected with the exhaust short circuit;
a collector umbrella is fixed on the outer side pipe wall of the collector umbrella central pipe, a collector umbrella central pipe liquid flow channel is arranged in the collector umbrella central pipe, an air inlet channel and a collector umbrella central pipe liquid inlet are further arranged on the collector umbrella central pipe, the air inlet channel is located inside the collector umbrella, and the collector umbrella central pipe liquid inlet is located at the lower part of the air inlet channel;
the exhaust short connector is provided with an exhaust channel;
a liquid inlet of the central pipe of the manifold umbrella is communicated with the liquid flow channel of the exhaust pipe;
the exhaust channel is communicated with the gas flow passage structure and the gas inlet channel to form an inner exhaust channel;
the umbrella edge of the collector umbrella can be attached to the well wall.
Preferably, the gas flow channel structure is located on the outer circumference of the exhaust pipe, an exhaust pipe gas inlet hole groove is formed in the exhaust pipe at one end of the gas flow channel structure, and an exhaust pipe gas outlet hole groove is formed in the exhaust pipe at the other end of the gas flow channel structure;
the air inlet channel is communicated with one end of the exhaust pipe through the air inlet hole groove of the exhaust pipe;
the exhaust channel is communicated with the other end of the exhaust pipe through the exhaust pipe air outlet groove.
Preferably, the exhaust pipe liquid flow passage is located inside the exhaust pipe;
the gas flow channel structure is located a plurality of bulges are distributed on the circumference of the outer side of the exhaust pipe, 2 exhaust pipe gas flow channels are formed among the bulges, and two ends of each exhaust pipe gas flow channel are respectively communicated with the exhaust pipe gas inlet groove and the exhaust pipe gas outlet groove.
Preferably, have exhaust short circuit inlet port recess and exhaust short circuit exhaust hole recess on the outer wall of exhaust short circuit, exhaust short circuit exhaust hole has on the inside circumference of exhaust short circuit inlet port recess, exhaust short circuit inlet port recess with exhaust short circuit exhaust hole has the short circuit gas runner of exhaust between the recess, exhaust short circuit inlet port recess exhaust short circuit exhaust hole recess and exhaust short circuit gas runner form exhaust passage.
Preferably, the outer wall of the central tube of the umbrella is provided with an umbrella rib hook groove, an umbrella rib groove and an umbrella cloth fixing groove;
the umbrella rib of the flow collecting umbrella is fixed in the umbrella rib groove, the top end of the umbrella cloth of the flow collecting umbrella is fixed in the umbrella cloth fixing groove, the umbrella rib is provided with an umbrella rib hook, and the umbrella rib hook is fixed in the umbrella rib hook groove.
Preferably, the inner exhaust passage is a C-shaped structure, the exhaust passage is a C-shaped convex portion, and the exhaust passage and the intake passage are C-shaped arms.
Preferably, the downhole real-time gas diverter for fluid production profile logging further comprises:
an exhaust thin-walled cylinder;
the exhaust thin-walled cylinder is sleeved on the outer side of the exhaust short circuit;
the two sides of the exhaust thin-wall cylinder are respectively provided with a first exhaust hole of the exhaust thin-wall cylinder and a second exhaust hole of the exhaust thin-wall cylinder outwards, an exhaust thin-wall cylinder exhaust channel is formed between the first exhaust hole of the exhaust thin-wall cylinder and the second exhaust hole of the exhaust thin-wall cylinder, and the first exhaust hole of the exhaust thin-wall cylinder is connected with the exhaust channel.
In a second aspect, the present invention provides a downhole real-time gas diverter system for fluid production profile logging, comprising: a real-time gas shunt in pit for producing liquid profile well logging as above-mentioned, characterized in that:
the central tube of the collector umbrella is connected with a collector umbrella driving device; the collector umbrella driving device drives the collector umbrella to fold and branch;
the exhaust pipe passes through the exhaust pipe liquid flow passage, the turbine flowmeter and the water content sensor; the turbine flowmeter and the water content sensor are used for measuring flow and water content information.
Preferably, the downhole real-time gas diverter system for fluid production profile logging further comprises:
a main control unit;
the main control unit is respectively connected with the driving device, the turbine flowmeter and the moisture content sensor and is used for controlling the driving device to collect and branch the collector umbrella, collecting the flow and the moisture content information and sending the flow and the moisture content information to an upper computer.
Preferably, the downhole real-time gas diverter system for fluid production profile logging further comprises:
a curve drawing device;
and the curve drawing device is used for drawing the calibration curve of the underground real-time gas diverter for the liquid production profile logging in real time according to the flow and the water content information in the upper computer.
The invention has at least the following beneficial effects:
the invention provides an underground real-time gas flow divider and an underground real-time gas flow divider system for producing fluid profile logging, which can continuously divide gas in real time without movable parts such as a gas valve, a floater and the like, are reliable and stable in work, realize gas flow division by utilizing the difference of the density and the viscosity of gas and oil-water mixture in a measured fluid, convert the three-phase flow logging problem into the two-phase flow logging problem, and have the characteristics of simplicity, practicability and economy.
The gas phase fluid in the oil-gas-water three-phase flow to be measured can be discharged out of the measuring channel, and the liquid phase fluid in the three-phase flow enters the measuring channel to be measured, so that the three-phase flow problem is simplified into the two-phase flow measuring problem, the influence of gas on the measurement is reduced, the well logging precision is improved, and the method has wider field adaptability.
Meanwhile, the invention reduces and eliminates the influence of gas on the measurement of the liquid production amount and the water content, can still obtain more accurate liquid production profile logging information under the condition of oil, gas and water three phases, and solves the problem of liquid production profile logging of a low-gas production and low-liquid production well.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a calibration curve of a turbine flowmeter of an original instrument in clear water and gas-water two-phase flow;
FIG. 2 is a plot of the calibration of a turbine flowmeter of a downhole real-time gas diverter for fluid production profile logging in clean water and gas-water two-phase flow in accordance with the present invention;
FIG. 3 is a plot of the calibration of a downhole real-time gas splitter for fluid production profile logging in an oil, gas, and water three phase stream according to the present invention;
FIG. 4 is a mechanical assembly diagram of a downhole real-time gas diverter for fluid production profile logging according to the present invention;
FIG. 5 is a schematic diagram of a manifold umbrella center tube of a downhole real-time gas diverter for fluid production profile logging according to the present invention;
FIG. 5A is a schematic cross-sectional view of a manifold center tube of a downhole real-time gas splitter for use in fluid production profile logging, taken along line A-A of FIG. 5;
FIG. 5B is a schematic cross-sectional view of a manifold center tube of a downhole real-time gas splitter for use in fluid production profile logging, taken along line B-B of FIG. 5, according to the present invention;
FIG. 5C is a schematic cross-sectional view of a manifold center tube of a downhole real-time gas splitter for use in fluid production profile logging, taken along line D-D of FIG. 5, in accordance with the present invention;
FIG. 6 is a schematic diagram of an exhaust short circuit structure of a downhole real-time gas diverter for fluid production profile logging according to the present invention;
FIG. 6A is a schematic view of an exhaust short of a downhole real-time gas diverter for fluid production profile logging according to the present invention taken along section B-B of FIG. 6;
FIG. 6B is a schematic view of an exhaust short of a downhole real-time gas diverter for fluid production profile logging according to the present invention taken along the section C-C of FIG. 6;
FIG. 6C is a schematic view of an exhaust short of a downhole real-time gas diverter for fluid production profile logging according to the present invention taken along section D-D of FIG. 6;
FIG. 7 is a schematic diagram of an exhaust pipe configuration of a downhole real-time gas diverter for fluid production profile logging according to the present invention;
FIG. 7A is a schematic view of the cross-sectional view A-A in FIG. 7 of the exhaust pipe of a downhole real-time gas splitter for use in fluid production profile logging according to the present invention;
FIG. 7B is a schematic view of the cross-sectional view B-B of FIG. 7 of the exhaust pipe of a downhole real-time gas splitter for use in fluid production profile logging according to the present invention;
FIG. 8 is a schematic view of the venting thin wall cylinder structure of a downhole real-time gas splitter for fluid production profile logging in accordance with the present invention;
FIG. 8A is a schematic view of the thin walled exhaust sleeve of the downhole real time gas splitter for fluid production profile logging of the present invention taken along line A-A of FIG. 8;
FIG. 8B is a schematic view of the thin walled exhaust sleeve of the downhole real-time gas splitter for fluid production profile logging of the present invention taken along line B-B of FIG. 8;
FIG. 9 is a schematic diagram of a downhole real-time gas diverter system for fluid production profile logging according to the present invention.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth. However, the present invention may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the invention, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
The gas diverter can achieve the effect of 'gas leakage and oil leakage' under the condition of low flow. The gas distribution flow channel of the flow divider is of an inverted U-shaped structure, the height difference between the top end and the bottom of the inverted U-shaped structure is h, and the pressure difference is delta p. Because the density difference between the gas and the oil and water is large, the oil can flow out through the gas diversion channel only by overcoming the pressure difference of delta p, and the gas can be diverted and the oil cannot leak under the condition of low flow; the effects of easy air leakage and difficult oil leakage can be achieved under the condition of large flow. When the flow reaches a certain degree, the flow pressure difference is larger than delta p, and the gas shunting channel starts to leak oil. Because the viscosity difference between the gas and the crude oil is large, the gas has small viscosity, small flow resistance and large flow split under the condition of the same flow passage, the crude oil has large viscosity which is dozens of times of that of the gas, the flow resistance is large, the flow split is small, and the logging requirement can be met within a certain measuring range.
Through indoor experiments, the gas distribution and oil leakage rules can be mastered, and the corresponding rules are utilized for correction, so that the interpretation precision can be further improved.
△p＝(ρw-ρg)h
According to the fluid mechanics theory, the extended-range resistance loss of the fluid is related to the length, the diameter, the flowing speed and the viscosity of the fluid, and the flow dividing effect can be optimized by optimizing the structural size of the flow passage.
FIG. 1 is a calibration curve of turbine flowmeter in clean water and gas-water two-phase flow. As shown in fig. 1, when the gas flow is added, the turbine response frequency is significantly higher than that when the gas is not added, and the turbine flowmeter is greatly affected by the gas, which results in a large measurement error. And calculating the reference error of gas-water two-phase flow calculation of the added gas of 3m3/d and 5m3/d, wherein the reference error of most experimental points is more than 5 percent.
FIG. 2 is a plot of the turbine flow meter of the downhole real-time gas splitter for fluid production profile logging plotted against clean water and gas-water two-phase flow according to the present invention. As shown in fig. 2, the calibration results show that: when different gas flows are added, the turbine response and the water flow are in a linear relation, the turbine response frequency is basically the same as the turbine frequency in clean water after the different gases are added, the maximum measurement error is 3%, the measurement precision is obviously improved, and the flow logging effect during low gas production can be improved by the underground real-time gas diverter.
FIG. 3 is a plot of the calibration of a downhole real-time gas splitter for fluid production profile logging in an oil, gas, and water three phase stream according to the present invention. As shown in figure 3, the turbine flowmeter provided with the underground real-time gas splitter adds turbine response curves measured when the gas flow rate is 3m3/d and 5m3/d respectively under the oil-gas-water three-phase flow and the oil-water two-phase flow and the liquid phase water content are changed, wherein each curve in the graph represents different liquid phase water contents. The calibration results show that: 1) the turbine response frequency and the liquid phase flow have a good linear relation; 2) when the liquid phase flow is kept unchanged and the liquid phase water content is changed from 100% to 50% under the same gas flow, the turbine response value is basically unchanged and kept around the same value, namely the turbine response is slightly influenced by the oil-water ratio change; 3) when different gas flows are added, the turbine response value is basically unchanged, and the influence of the gas amount on the turbine response is small; 4) the flow measurement errors of the oil-gas-water three-phase flow are all within 5 percent, and the maximum reference error is 4.7 percent. Therefore, when the gas flow is low, the underground real-time gas splitter can discharge gas out of the measurement channel, the influence of the gas on the measurement of the sensor is reduced, the measurement error is reduced, and the logging quality of the output profile under the three-phase flow condition is improved.
FIG. 4 is a mechanical assembly diagram of a downhole real-time gas diverter for fluid production profile logging according to the present invention. As shown in fig. 1. A downhole real-time gas splitter for fluid production profile logging, comprising: the device comprises a central tube 1 of the collecting umbrella, an exhaust short joint 2, an exhaust pipe 3, an exhaust thin-wall cylinder 4, an upper sealing O ring 7, an outer sealing O ring 8 and a lower sealing O ring 9.
In fig. 4, an exhaust pipe 3 has a gas flow passage structure and an exhaust pipe liquid flow passage 3-3, one end of the exhaust pipe 3 is connected with a central pipe 1 of a manifold umbrella, and the other end of the exhaust pipe 3 is connected with an exhaust short joint 2; a collector umbrella is fixed on the outer side pipe wall of a collector umbrella central pipe 1, a collector umbrella central pipe liquid flow channel 1-2 is arranged inside the collector umbrella central pipe 1, an air inlet channel and a collector umbrella central pipe liquid inlet 1-8 are further arranged on the collector umbrella central pipe 1, the air inlet channel is positioned inside the collector umbrella, and the collector umbrella central pipe liquid inlet 1-8 is positioned at the lower part of the air inlet channel; the exhaust short circuit 2 is provided with an exhaust passage; a liquid inlet 1-8 of a central pipe of the collecting umbrella is communicated with a liquid channel 3-3 of the exhaust pipe; the exhaust channel is communicated with the gas flow channel structure and the gas inlet channel to form an inner exhaust channel 5; wherein, the umbrella edge of the manifold umbrella can be attached to the well wall.
Further, the inner exhaust passage 5 is a C-shaped structure, the exhaust passage is a C-shaped convex portion, and the exhaust passage and the intake passage are C-shaped arms.
The other unexplained reference numerals or reference numerals not explained in detail in fig. 4 are explained in detail in fig. 5, 5A, 5B, 5C, 6A, 6B, 6C, 7A, 7B, 8A, 8B and 9, and will not be described in detail here.
FIG. 5 is a schematic diagram of a manifold umbrella central tube structure of a downhole real-time gas diverter for producing profile logging according to the present invention. Fig. 5A is a schematic cross-sectional view of a manifold center tube of a downhole real-time gas splitter for producing profile logging along a-a in fig. 5 according to the present invention. Fig. 5B is a schematic cross-sectional view of a manifold center tube of a downhole real-time gas splitter for producing profile logging along the line B-B in fig. 5 according to the present invention. Fig. 5C is a schematic cross-sectional view of a manifold center tube of a downhole real-time gas splitter for fluid production profile logging along D-D in fig. 5 according to the present invention. As shown in fig. 5, 5A, 5B and 5C.
In fig. 5, 5A, 5B and 5C, and as explained in connection with fig. 4, the central collector tube 1 comprises: the umbrella cloth fixing device comprises 1-1 parts of upper collecting umbrella central pipe connecting threads, 1-3 parts of umbrella rib hook grooves, 1-4 parts of umbrella rib grooves, 1-5 parts of umbrella cloth fixing grooves, 1-6 parts of collecting umbrella central pipe air inlet holes, 1-7 parts of exhaust pipe limiting pins and 1-8 parts of collecting umbrella central pipe liquid inlet. The umbrella rib of the flow collecting umbrella is fixed in the umbrella rib groove 1-4, the top end of the umbrella cloth of the flow collecting umbrella is fixed in the umbrella cloth fixing groove 1-5, the umbrella rib is provided with an umbrella rib hook, and the umbrella rib hook is fixed in the umbrella rib hook groove 1-3.
Further, in fig. 5, 5A, 5B and 5C, and with reference to fig. 4, specifically, the inner space of the central tube 1 of the umbrella forms a central tube liquid flow channel 1-2 of the umbrella, the lower end of the central tube 1 of the umbrella is connected to a motor for driving the umbrella to fold and branch, the umbrella rib hook is fixed in the groove 1-3 of the umbrella rib hook, 16 metal umbrella ribs are respectively fixed in the groove 1-4 of 16 umbrella ribs, the umbrella cloth is an inverted funnel type airtight high-strength thin fabric, the top end of the umbrella cloth is fixed on the groove 1-5 of the umbrella cloth, and the middle position of the umbrella cloth is fixed by 16 umbrella ribs.
Further, in fig. 5, fig. 5A, fig. 5B and fig. 5C, and with reference to fig. 4, specifically, the liquid flows in the direction of the underground from bottom to top, when the umbrella cloth is spread, the bottom end of the umbrella cloth is attached to the well wall, so that the fluid to be measured enters the instrument from the liquid inlet 1-8 of the central tube of the manifold umbrella, and flows upwards into the upper measurement sensor through the liquid flow channel 1-2 of the central tube of the manifold, and the air inlet 1-6 of the central tube of the manifold is installed at the top end of the interior of the manifold.
FIG. 6 is a schematic diagram of an exhaust short circuit structure of a downhole real-time gas diverter for fluid production profile logging according to the present invention. FIG. 6A is a schematic view of an exhaust short of a downhole real-time gas diverter for fluid production profile logging along the section B-B in FIG. 6 according to the present invention. FIG. 6B is a schematic view of an exhaust short of a downhole real-time gas diverter for fluid production profile logging according to the present invention taken along the section C-C in FIG. 6. FIG. 6C is a schematic view of an exhaust short of a downhole real-time gas diverter for fluid production profile logging according to the present invention taken along section D-D of FIG. 6. As shown in fig. 6, 6A, 6B and 6C.
In fig. 6, 6A, 6B and 6C, the short exhaust circuit 2 includes: the exhaust short joint comprises 2-1 connecting threads on the exhaust short joint, 2-2 grooves of an exhaust short joint O-shaped ring, 2-3 exhaust short joint exhaust holes, 2-4 grooves of exhaust short joint air inlet holes, 2-5 grooves of the exhaust short joint exhaust holes, 2-6 connecting threads on the lower exhaust short joint and 2-8 gas flow passages of the exhaust short joint.
In fig. 6, fig. 6A, fig. 6B and fig. 6C, and as described with reference to fig. 4, fig. 5A, fig. 5B and fig. 5C, an exhaust short circuit air inlet groove 2-4 and an exhaust short circuit air outlet groove 2-5 are formed in the outer wall of the exhaust short circuit 2, an exhaust short circuit air outlet 2-3 is formed in the inner circumference of the exhaust short circuit air inlet groove 2-4, an exhaust short circuit gas flow passage 2-8 is formed between the exhaust short circuit air inlet groove 2-4 and the exhaust short circuit air outlet groove 2-5, and the exhaust short circuit air inlet groove 2-4, the exhaust short circuit air outlet groove 2-5 and the exhaust short circuit gas flow passage 2-8 form an exhaust passage.
Further, in fig. 6, fig. 6A, fig. 6B and fig. 6C, and as described with reference to fig. 4 and fig. 5, specifically, the exhaust nipple 2 is installed on the upper portion of the central manifold pipe 1, the lower connecting thread 2-6 of the exhaust nipple is connected with the central manifold pipe connecting thread 1-1 on the central manifold pipe 1, and the inner diameter of the exhaust nipple 2 is identical to the inner diameter of the central manifold pipe 1. The connecting thread 2-1 on the exhaust short joint is connected with a measuring sensor arranged on the upper part of the gas separator. The outer O-ring 8 in the groove 2-2 of the exhaust short-circuit O-ring seals the gap between the exhaust short-circuit 2 and the exhaust thin-wall cylinder 4 which is arranged outside and is shown in figure 7, and prevents gas from leaking out of the upper part. 6 exhaust short-circuit exhaust holes 2-3 are uniformly distributed on the inner circumference of the groove 2-4 of the exhaust short-circuit air inlet hole. 6 short-circuit gas exhaust runners 2-8 are uniformly distributed between the upper short-circuit gas exhaust inlet groove 2-4 and the lower short-circuit gas exhaust hole groove 2-5, and each short-circuit gas exhaust hole 2-3 corresponds to the short-circuit gas exhaust runner 2-8.
FIG. 7 is a schematic diagram of an exhaust pipe structure of a downhole real-time gas diverter for fluid production profile logging according to the present invention. FIG. 7A is a schematic view of the cross-section of the exhaust pipe of the downhole real-time gas splitter for fluid production profile logging along line A-A of FIG. 7 according to the present invention. FIG. 7B is a schematic diagram of a cross-sectional view of the exhaust pipe of the downhole real-time gas splitter for fluid production profile logging along B-B of FIG. 7 according to the present invention. As shown in fig. 7, 7A and 7B.
In fig. 7, 7A, and 7B, the exhaust pipe 3 includes: the exhaust pipe comprises an upper exhaust pipe O-shaped ring groove 3-1, an exhaust pipe air outlet groove 3-2, an exhaust pipe liquid flow channel 3-3, an exhaust pipe air inlet groove 3-4, a lower exhaust pipe O-shaped ring groove 3-5, an exhaust pipe gas flow channel 3-6 and an exhaust pipe flow channel wall 3-7.
In fig. 7, 7A and 7B, and with reference to fig. 4, 5A, 5B, 5C, 6A, 6B and 6C, the gas flow passage structure is located on the outer circumference of the exhaust pipe 3, the exhaust pipe 3 at one end of the gas flow passage structure has an exhaust pipe inlet hole groove 3-4, and the exhaust pipe 3 at the other end of the gas flow passage structure has an exhaust pipe outlet hole groove 3-2; the air inlet channel is communicated with one end of the exhaust pipe 3 through an air inlet hole groove 3-4 of the exhaust pipe; the exhaust channel is communicated with the other end of the exhaust pipe 3 through an exhaust pipe air outlet hole groove 3-2.
Further, the exhaust pipe liquid flow passage 3-3 is located inside the exhaust pipe 3; the gas flow channel structure is located on the outer circumference of the exhaust pipe 3 and is provided with a plurality of bulges, exhaust pipe gas flow channels 3-6 are formed among the bulges 2, and two ends of each exhaust pipe gas flow channel 3-6 are respectively communicated with an exhaust pipe gas inlet hole groove 3-4 and an exhaust pipe gas outlet hole groove 3-2.
Further, in fig. 7, 7A, and 7B, and with reference to fig. 4, 5A, 5B, 5C, 6A, 6B, and 6C, the exhaust pipe 3 is mounted inside the exhaust short 2 and the manifold center pipe 1, and the exhaust pipe stopper pins 1 to 7 regulate the mounting position of the lowest end of the exhaust pipe 3. An inner exhaust channel 5 is formed by exhaust pipe air inlet grooves 3-4 of the exhaust pipe 3 and gaps between exhaust pipe gas flow channels 3-6 and the central pipe 1 of the manifold umbrella. Due to the density difference between the gas and the liquid, the gas is gathered at the top end of the manifold umbrella and enters the inner exhaust channel 5 through the central pipe air inlet holes 1-6 of the manifold umbrella, and the inner exhaust channel 5 forms an exhaust channel which flows upwards in the inverted U-shaped exhaust channel.
Further, in fig. 7, fig. 7A and fig. 7B, and with reference to fig. 4, fig. 5A, fig. 5B, fig. 5C, fig. 6A, fig. 6B and fig. 6C, specifically, the exhaust pipe 3 is installed inside the exhaust short circuit 2 and the central collecting umbrella pipe 1, the installation position of the lowest end of the exhaust pipe 3 is limited by the exhaust pipe limiting pins 1 to 7, the exhaust pipe air inlet grooves 3 to 4 are aligned with the central collecting umbrella pipe air inlet holes 1 to 6 on the central collecting umbrella pipe 1, and the exhaust pipe air outlet grooves 3 to 2 are aligned with the exhaust short circuit air inlet grooves 2 to 4 of the exhaust short circuit 2. The lower O-shaped ring 9 in the groove 3-5 of the lower O-shaped ring of the exhaust pipe seals the gap between the exhaust pipe 3 and the central pipe 1 of the manifold umbrella to prevent gas from leaking out of the lower part of the exhaust pipe 3. An upper O-ring 7 in an O-ring groove 3-1 on the exhaust pipe seals a gap between the exhaust pipe 3 and the exhaust short circuit 2, and prevents gas from leaking out of the top end of the exhaust pipe 3. 12 exhaust pipe gas flow channels 3-6 are circumferentially and uniformly distributed between the exhaust pipe air outlet hole groove 3-2 and the exhaust pipe air inlet hole groove 3-4.
Further, in fig. 7, fig. 7A and fig. 7B, and with reference to fig. 4, fig. 5A, fig. 5B, fig. 5C, fig. 6A, fig. 6B and fig. 6C, specifically, an inner exhaust channel 5 is formed between the exhaust pipe air inlet groove 3-4 and the exhaust pipe air flow passage 3-6 and the inner wall of the central tube 1 of the umbrella and the inner wall of the exhaust short circuit 2. The gas flowing in from the air inlet holes 1-6 of the central tube of the manifold umbrella 1 flows upwards in the inner exhaust channel 5, flows out from the air outlet hole grooves 3-2 of the exhaust pipe and flows downwards in the outer exhaust channel 6. The central circular space of the exhaust pipe 3 is an exhaust pipe liquid flow passage 3-3 which is connected with a collector umbrella central pipe liquid flow passage 1-2 inside the collector umbrella central pipe 1.
FIG. 8 is a schematic view of the venting thin wall cylinder structure of a downhole real-time gas splitter for fluid production profile logging in accordance with the present invention. FIG. 8A is a schematic view of the thin walled exhaust sleeve of the downhole real-time gas splitter for fluid production profile logging of the present invention taken along line A-A of FIG. 8. FIG. 8B is a schematic view of the thin wall venting cartridge of the downhole real-time gas splitter for fluid production profile logging of the present invention taken along the line B-B in FIG. 8. As shown in fig. 8, 8A and 8B.
In fig. 8, 8A and 8B, and described in conjunction with fig. 4-7, a downhole real-time gas splitter for use in fluid production profile logging further comprises: an exhaust thin-walled cylinder 4; the exhaust thin-wall cylinder 4 is sleeved on the outer side of the exhaust short circuit 2; and a first exhaust hole and a second exhaust hole of the exhaust thin-wall cylinder are respectively formed in the two sides of the exhaust thin-wall cylinder 4 outwards, an exhaust thin-wall cylinder exhaust channel is formed between the first exhaust hole of the exhaust thin-wall cylinder and the second exhaust hole of the exhaust thin-wall cylinder, and the first exhaust hole of the exhaust thin-wall cylinder is connected with the exhaust channel.
Further, in fig. 8, 8A and 8B, and with reference to fig. 4 to 7, specifically, the thin-walled exhaust cylinder 4 is installed on the outer side of the exhaust short circuit 2, a gap between the exhaust short circuit gas flow passage 2-8 and the thin-walled exhaust cylinder 4 forms an outer exhaust passage 6, and the outer exhaust passage 6 forms an exhaust passage flowing downward outside the inverted "U" shaped exhaust passage. The groove 2-5 of the exhaust short circuit exhaust hole is aligned with the exhaust thin-wall cylinder exhaust hole 4-1 of the exhaust thin-wall cylinder 4 arranged on the outer side, and gas flows out of the instrument from the exhaust thin-wall cylinder exhaust hole 4-1.
Further, in fig. 8, 8A and 8B, and with reference to fig. 4 to 7, specifically, the thin exhaust tube 4 is attached to the outside of the short exhaust connector 2, and the upper gap between the thin exhaust tube 4 and the short exhaust connector 2 is sealed by the upper O-ring 8 attached to the groove 2-2 of the short exhaust connector 2, thereby preventing gas from leaking from the upper portion. The lower part is provided with 2 circles of exhaust thin-walled cylinder exhaust holes 4-1 which are aligned with the exhaust short-circuit exhaust hole grooves 2-5 of the exhaust short-circuit 2. The space between the exhaust thin-wall cylinder 4 and the exhaust short-circuit gas flow channel 2-8 of the exhaust short-circuit 2 forms an outer exhaust channel 6, the outer exhaust channel 6 forms an exhaust channel which flows downwards outside the inverted U-shaped exhaust channel, and gas flows out of the instrument from the exhaust hole 4-1 of the exhaust thin-wall cylinder.
FIG. 9 is a schematic diagram of a downhole real-time gas diverter system for fluid production profile logging according to the present invention. As shown in fig. 9 and described in conjunction with the above figures, a downhole real-time gas diverter system for fluid production profile logging, comprising: in the underground real-time gas splitter for logging of the liquid production profile, the central tube 1 of the collector umbrella is connected with the collector umbrella driving device; the collector umbrella driving device drives the collector umbrella to fold and branch; the exhaust pipe 3 passes through an exhaust pipe liquid flow passage 3-3, a turbine flowmeter 11 and a water content sensor 12; a turbine flowmeter 11 and a water content sensor 12 for measuring flow rate and water content information.
Further, a downhole real-time gas diverter system for fluid production profile logging, further comprising: a main control unit; the main control unit is respectively connected with the driving device, the turbine flowmeter 11 and the water content sensor 12 and is used for controlling the driving device to fold and branch the collector umbrella, collecting flow and water content information and sending the flow and water content information to the upper computer 13.
Still further, a downhole real-time gas diverter system for fluid production profile logging, further comprising: a curve drawing device; and the curve drawing device is used for drawing a calibration curve of the underground real-time gas diverter for the liquid production profile logging in real time according to the flow and water content information in the upper computer 13, and the calibration curve drawn by the curve drawing device is shown in figures 1, 2 and 3.
The assembly process of a downhole real-time gas diverter for fluid production profile logging according to the present invention is briefly described as follows with reference to the accompanying drawings:
the exhaust short joint 2 is arranged on the upper part of the central pipe 1 of the collecting umbrella and is connected with the central pipe 1 of the collecting umbrella through threads. The exhaust pipe 3 is arranged inside the central pipe 1 of the flow collection umbrella and the exhaust short circuit 2, the upper end and the lower end of the exhaust pipe are sealed through O rings, the installation position of the lowest end of the exhaust pipe 3 is limited through exhaust pipe limiting pins 1-7 of the central pipe 1 of the flow collection umbrella, the positions of air inlet grooves 3-4 of the exhaust pipe are aligned with the positions of air inlet holes 1-6 of the central pipe 1 of the flow collection umbrella, and the positions of air outlet grooves 3-2 of the exhaust pipe are aligned with the positions of air inlet grooves 2-4 of. The exhaust thin-wall cylinder 4 is arranged on the outer side of the exhaust short circuit 2 and is sealed with the exhaust short circuit through an O-shaped ring, and an exhaust hole 4-1 of the exhaust thin-wall cylinder is aligned with an exhaust groove 2-5 of the exhaust short circuit 2. An inner exhaust channel 5 is formed by the exhaust pipe air inlet grooves 3-4 of the exhaust pipe 3 and gaps between the exhaust pipe gas flow channels 3-6 and the central pipe 1 of the manifold umbrella, and the inner exhaust channel 5 forms an exhaust channel which flows upwards in the inverted U-shaped exhaust channel. The space between the exhaust thin-wall cylinder 4 and the exhaust short-circuit gas flow channel 2-8 of the exhaust short-circuit 2 forms an outer exhaust channel 6, and the outer exhaust channel 6 forms an exhaust channel which flows downwards outside the inverted U-shaped exhaust channel.
The operation of a downhole real-time gas diverter system for fluid production profile logging according to the present invention is briefly described as follows with reference to the accompanying drawings:
the collecting umbrella is arranged at the lower part of the whole instrument, the collecting umbrella cloth 10 is spread when the instrument works, and the oil-gas-water three-phase fluid to be measured flows upwards in the sleeve. The gas phase fluid is influenced by the slippage effect because the density of the gas phase fluid is far less than that of the liquid phase fluid, the gas flow speed is high, and the gas enters the central pipe 1 from the gas inlet holes 1-6 of the central pipe of the manifold umbrella at the top of the central pipe 1 of the manifold umbrella and flows upwards through the inner exhaust channel 5 between the exhaust short circuit 2 and the exhaust pipe 3. The gas phase fluid flows downwards into the outer exhaust channel 6 at the top end of the inner exhaust channel 5 through the exhaust short circuit exhaust hole 2-3 on the exhaust short circuit 2. The outer exhaust channel 6 is formed by the space between the exhaust thin-wall cylinder 4 and the exhaust short-circuit gas flow channel 2-8 of the exhaust short-circuit 2. Then, the gas phase fluid flows out of the instrument from the exhaust thin-wall cylinder exhaust hole 4-1 on the exhaust thin-wall cylinder 4. Thus, gas phase fluid flows out of the instrument in real time from the inventive gas splitter without entering the measurement channel, thereby reducing the influence of gas on the sensor measurement. Liquid phase fluid in the three-phase flow flows into the measuring channel from a liquid inlet 1-8 of the central pipe of the manifold umbrella on the central pipe 1 of the manifold umbrella, upwards flows through a liquid channel 3-3 of the exhaust pipe in the middle of the exhaust pipe 3, and then upwards flows into the turbine flowmeter 11 and the water content sensor 12 to measure the flow and the water content, so that the three-phase flow problem is simplified into a two-phase flow measuring problem, and the measuring error of the flow and the water content is reduced.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions of equivalents, improvements and the like can be made without departing from the spirit of the invention, and these are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A downhole real-time gas diverter for fluid production profile logging, comprising:
an exhaust pipe (3) and an exhaust thin-wall cylinder (4);
the exhaust pipe (3) is provided with a gas flow passage structure and an exhaust pipe liquid flow passage (3-3), one end of the exhaust pipe (3) is connected with the central pipe (1) of the manifold umbrella, and the other end of the exhaust pipe (3) is connected with the exhaust short circuit (2);
a collector umbrella (10) is fixed on the outer side pipe wall of the collector umbrella central pipe (1), a collector umbrella central pipe liquid flow channel (1-2) is arranged inside the collector umbrella central pipe (1), an air inlet channel and a collector umbrella central pipe liquid inlet (1-8) are further arranged on the collector umbrella central pipe (1), the air inlet channel is located inside the collector umbrella (10), and the collector umbrella central pipe liquid inlet (1-8) is located at the lower part of the air inlet channel;
the exhaust short circuit (2) is provided with an exhaust passage; the exhaust short circuit comprises an exhaust short circuit air inlet groove (2-4) and an exhaust short circuit air outlet groove (2-5) which are arranged on the outer wall of the exhaust short circuit (2), an exhaust short circuit air outlet hole (2-3) is arranged on the inner circumference of the exhaust short circuit air inlet groove (2-4), an exhaust short circuit gas flow channel (2-8) is arranged between the exhaust short circuit air inlet groove (2-4) and the exhaust short circuit air outlet groove (2-5), and the exhaust short circuit air inlet groove (2-4), the exhaust short circuit air outlet groove (2-5) and the exhaust short circuit gas flow channel (2-8) form an exhaust channel;
a liquid inlet (1-8) of a central pipe of the manifold umbrella is communicated with a liquid flow channel (3-3) of the exhaust pipe;
the exhaust channel is communicated with the gas flow passage structure and the gas inlet channel to form an inner exhaust channel (5); the exhaust thin-walled cylinder (4) is sleeved on the outer side of the exhaust short joint (2); the exhaust thin-wall cylinder (4) is provided with exhaust thin-wall cylinder exhaust holes (4-1) aligned with exhaust short-circuit exhaust hole grooves (2-5), a space between the exhaust thin-wall cylinder (4) and exhaust short-circuit gas runners (2-8) of the exhaust short-circuit (2) forms an outer exhaust channel (6), the inner exhaust channel (5) forms an exhaust channel which flows upwards inside the inverted U-shaped exhaust channel, the outer exhaust channel (6) forms an exhaust channel which flows downwards outside the inverted U-shaped exhaust channel, and gas flows out of the exhaust thin-wall cylinder exhaust holes (4-1);
wherein, the umbrella edge of the collector umbrella (10) can be attached to the well wall.
2. The downhole real-time gas diverter for fluid production profile logging according to claim 1, wherein:
the gas flow channel structure is positioned on the outer circumference of the exhaust pipe (3), an exhaust pipe gas inlet groove (3-4) is formed in the exhaust pipe (3) at one end of the gas flow channel structure, and an exhaust pipe gas outlet groove (3-2) is formed in the exhaust pipe (3) at the other end of the gas flow channel structure;
the air inlet channel is communicated with one end of the exhaust pipe (3) through the exhaust pipe air inlet groove (3-4);
the exhaust channel is communicated with the other end of the exhaust pipe (3) through the exhaust pipe air outlet groove (3-2).
3. The downhole real-time gas diverter for fluid production profile logging according to claim 2, wherein:
the exhaust pipe liquid flow passage (3-3) is positioned at the inner side of the exhaust pipe (3);
the gas flow channel structure is characterized in that a plurality of bulges are distributed on the circumference of the outer side of the exhaust pipe (3), exhaust pipe gas flow channels (3-6) are formed among 2 bulges, and two ends of each exhaust pipe gas flow channel (3-6) are respectively communicated with the exhaust pipe gas inlet groove (3-4) and the exhaust pipe gas outlet groove (3-2).
4. The downhole real-time gas diverter for fluid production profile logging according to claim 1, wherein:
the outer wall of the central tube (1) of the collector umbrella is provided with umbrella rib hook grooves (1-3), umbrella rib grooves (1-4) and umbrella cloth fixing grooves (1-5);
the umbrella rib of the flow collecting umbrella (10) is fixed in the umbrella rib groove (1-4), the top end of the umbrella cloth of the flow collecting umbrella (10) is fixed in the umbrella cloth fixing groove (1-5), the umbrella rib is provided with an umbrella rib hook, and the umbrella rib hook is fixed in the umbrella rib hook groove (1-3).
5. A downhole real-time gas diverter system for fluid production profile logging, comprising: a downhole real-time gas diverter for fluid production profile logging according to any one of claims 1 to 4, characterized by:
the central tube (1) of the collector umbrella is connected with a collector umbrella driving device; the collector umbrella driving device drives the collector umbrella (10) to fold and branch;
the exhaust pipe (3) is connected with a turbine flowmeter (11) and a water content sensor (12) through the exhaust pipe liquid flow channel (3-3); the turbine flowmeter (11) and the water content sensor (12) are used for measuring flow and water content information.
6. The downhole real-time gas diverter system for fluid production profile logging according to claim 5, further comprising:
a main control unit;
the main control unit is respectively connected with the driving device, the turbine flowmeter (11) and the water content sensor (12) and used for controlling the driving device to fold and branch the flow collecting umbrella (10), collecting the flow and the water content information and sending the flow and the water content information to the upper computer (13).
7. The downhole real-time gas diverter system for fluid production profile logging according to claim 6, further comprising:
a curve drawing device;
and the curve drawing device is used for drawing the calibration curve of the underground real-time gas diverter of the liquid production profile logging in real time according to the flow and the water content information in the upper computer (13).
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| CN201710633216.5A CN107587869B (en) | 2017-07-28 | 2017-07-28 | Underground real-time gas flow divider and system for liquid production profile logging |
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| CN201710633216.5A CN107587869B (en) | 2017-07-28 | 2017-07-28 | Underground real-time gas flow divider and system for liquid production profile logging |
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| CN107587869B true CN107587869B (en) | 2021-03-19 |
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| CN108397183B (en) * | 2018-03-06 | 2020-01-14 | 大庆油田有限责任公司 | Low-yield horizontal well production profile logging combination instrument with dual working modes |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711371A (en) * | 1995-06-02 | 1998-01-27 | Bingham; Bill S. | Down hole submersible pump |
| CN1303471A (en) * | 1998-05-29 | 2001-07-11 | 大金工业株式会社 | Flow merging and dividing device and heat exchanger using device |
| CN101581215A (en) * | 2009-06-19 | 2009-11-18 | 大庆油田有限责任公司 | Collector capable of automatically controlling gas separation for measuring production profile of oil well |
| CN101660408A (en) * | 2009-09-30 | 2010-03-03 | 大庆油田有限责任公司 | Stratification oil production logging instrument of low-yield liquid oil well |
| CN201588565U (en) * | 2010-01-31 | 2010-09-22 | 付长生 | Screw pump well sucker rod centralizer |
| CN201908643U (en) * | 2010-07-30 | 2011-07-27 | 无锡市久联泵业机械有限公司 | 12-passage oil-gas separating head |
| CN102758610A (en) * | 2012-07-19 | 2012-10-31 | 中国石油天然气股份有限公司 | Gas-liquid separation low-production fluid three-phase flow measuring method |
| CN102758609A (en) * | 2012-07-19 | 2012-10-31 | 中国石油天然气股份有限公司 | Oil well three-phase flow measuring method under condition of high water cut |
| CN203347776U (en) * | 2013-07-24 | 2013-12-18 | 东北石油大学 | Oil-gas-water three-phase flow gas-liquid separation device for yield profile logging |
| CN106437676A (en) * | 2016-09-07 | 2017-02-22 | 中国石油天然气股份有限公司 | Double-stage umbrella type fluid-collecting device with exhaust function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7000694B2 (en) * | 2003-06-04 | 2006-02-21 | Crews Gregory A | Oil anchor |
| CN200949466Y (en) * | 2006-09-08 | 2007-09-19 | 大庆石油学院 | Gas overflow type confluent-liquid umbrella |
| CN102562026B (en) * | 2010-12-15 | 2015-06-03 | 中国石油天然气股份有限公司 | Gas production and water production section testing method of coal bed gas well and instrument |
| CN202092504U (en) * | 2011-04-02 | 2011-12-28 | 珠海格力电器股份有限公司 | Heat exchanger and tee-shaped flow distributing and collecting device thereof |
| CN102767359B (en) * | 2012-07-20 | 2016-01-20 | 中国石油天然气股份有限公司 | Volume-cumulative formula low-yield liquid oil well three-phase flow measurement mechanism |
-
2017
- 2017-07-28 CN CN201710633216.5A patent/CN107587869B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711371A (en) * | 1995-06-02 | 1998-01-27 | Bingham; Bill S. | Down hole submersible pump |
| CN1303471A (en) * | 1998-05-29 | 2001-07-11 | 大金工业株式会社 | Flow merging and dividing device and heat exchanger using device |
| CN101581215A (en) * | 2009-06-19 | 2009-11-18 | 大庆油田有限责任公司 | Collector capable of automatically controlling gas separation for measuring production profile of oil well |
| CN101660408A (en) * | 2009-09-30 | 2010-03-03 | 大庆油田有限责任公司 | Stratification oil production logging instrument of low-yield liquid oil well |
| CN201588565U (en) * | 2010-01-31 | 2010-09-22 | 付长生 | Screw pump well sucker rod centralizer |
| CN201908643U (en) * | 2010-07-30 | 2011-07-27 | 无锡市久联泵业机械有限公司 | 12-passage oil-gas separating head |
| CN102758610A (en) * | 2012-07-19 | 2012-10-31 | 中国石油天然气股份有限公司 | Gas-liquid separation low-production fluid three-phase flow measuring method |
| CN102758609A (en) * | 2012-07-19 | 2012-10-31 | 中国石油天然气股份有限公司 | Oil well three-phase flow measuring method under condition of high water cut |
| CN203347776U (en) * | 2013-07-24 | 2013-12-18 | 东北石油大学 | Oil-gas-water three-phase flow gas-liquid separation device for yield profile logging |
| CN106437676A (en) * | 2016-09-07 | 2017-02-22 | 中国石油天然气股份有限公司 | Double-stage umbrella type fluid-collecting device with exhaust function |
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|---|---|
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