CN112554868A - Device and method for splitting yield of multi-layer commingled production well - Google Patents

Device and method for splitting yield of multi-layer commingled production well Download PDF

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CN112554868A
CN112554868A CN202110191930.XA CN202110191930A CN112554868A CN 112554868 A CN112554868 A CN 112554868A CN 202110191930 A CN202110191930 A CN 202110191930A CN 112554868 A CN112554868 A CN 112554868A
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layer
crude oil
measuring instrument
small
sound wave
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谭晓华
丁磊
毛正林
李劲涵
邓永建
崔苗逢
彭港珍
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Southwest Petroleum University
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling

Abstract

The invention discloses a device and a method for splitting the output of a multilayer commingled production well, which relate to the technical field of oil and gas field development and comprise a ground controller and a measuring instrument which is connected through a cable and is arranged in an oil pipe, wherein the outside of the measuring instrument is provided with two symmetrical centralizers, the inside of the measuring instrument consists of a signal receiving and transmitting device, a host machine, a pressure sensor, a temperature sensor, a sound wave transmitting device and a sound wave receiving device, the work of the measuring instrument is controlled through the ground controller, the measuring of the sound wave frequency, the temperature and the pressure of each small layer by the measuring instrument is realized, and thus the splitting coefficient of each small layer of the multilayer commingled production well is calculated. Aiming at the problem that the yield splitting of the existing multilayer commingled production well is not accurate enough, the yield splitting coefficient of each small layer can be obtained in real time, so that the production condition of each small layer of an oil reservoir is known, and the method is convenient and practical.

Description

Device and method for splitting yield of multi-layer commingled production well
Technical Field
The invention relates to the technical field of oil and gas field development, in particular to a device and a method for splitting the yield of a multilayer commingled production well.
Background
In the technical field of oil and gas field development, the development mode of multi-layer commingled production is more and more common, wherein accurate splitting of the yield of each small layer is an important basis for fine description of a reservoir and adjustment of a later development scheme. However, stratum factors are mainly considered for splitting the output of each small layer of the multi-layer commingled production well at present, and the calculated result error is often larger. Therefore, it is imperative to find a method or apparatus that accurately splits the production of small layers.
The conventional splitting method for the small layer yield mainly comprises an effective thickness method, a formation coefficient method, a numerical simulation method and the like. The effective thickness method and the formation coefficient method only consider the static parameters of the reservoir, the accuracy of the formation parameters directly influences the splitting effect, and the influence of the heterogeneity of the reservoir on the productivity cannot be considered; the numerical simulation method is complex, and under the condition that reservoir knowledge is not complete, the error of a calculation result is still large. In order to solve the problems, a device and a method for splitting the yield of the multi-layer commingled production well are provided.
Disclosure of Invention
The invention provides a device and a method for splitting the yield of a multilayer commingled production well, which can solve the problem that the yield splitting of the well is not accurate enough.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a multilayer commingled production well output split device, includes the measuring apparatu, the measuring apparatu link to each other with ground controller through the cable, the measuring apparatu outside be equipped with the centralizer, the measuring apparatu inside constitute by signal transceiver, host computer, pressure sensor, temperature sensor, sound wave emitter, sound wave receiving arrangement, signal transceiver pass through the data line with the host computer and link to each other, the host computer pass through the data line with pressure sensor, temperature sensor, sound wave emitter, sound wave receiving arrangement and link to each other.
Preferably, the acoustic wave emitting device is installed at the upper left part inside the measuring instrument, and can emit an ultrasonic beam with the frequency f, and the direction of the emitted ultrasonic beam forms an angle of 30 degrees with the shell of the measuring instrument; the acoustic wave receiving device is arranged at the left lower part inside the measuring instrument and can receive the ultrasonic beam reflected by the crude oil.
A split method for the yield of a multi-layer commingled production well is realized based on a split device for the yield of the multi-layer commingled production well, and comprises the following steps:
firstly, preparing reservoir static parameters including relative density of crude oil, relative density of dissolved gas and solubility of natural gas in crude oil;
secondly, determining the position of each small-layer sand control sliding sleeve of the multi-layer commingled production well, and lowering the measuring instrument to each small layer through a cable, wherein the lowering position is 10cm away from the upper part of the sand control sliding sleeve of each small layer, and the number of the lowering measuring instruments is the same as the number of the commingled production layers;
thirdly, calculating the volume coefficient of the crude oil according to the temperature and pressure data measured by each small layer;
fourthly, calculating the flow velocity of the crude oil in the oil pipe according to the Doppler principle, and calculating the actual flow of each small layer of crude oil according to the flow velocity of the crude oil and the volume coefficient of the crude oil, thereby calculating the yield splitting coefficient of each small layer;
in the method for splitting the yield of the multi-layer commingled production well, the step of calculating the volume coefficient of the crude oil is that,
firstly, recording temperature and pressure data measured by each small layer measuring instrument; the further temperature and pressure measuring steps are as follows: after the ground controller is electrified and sends out an instruction, the instruction is transmitted to the signal transceiver through the cable and then transmitted to the host, the host controls the pressure sensor and the temperature sensor to work and returns the measured data to the host, and the host transmits the temperature and pressure data back to the ground controller through the signal transceiver and the cable;
secondly, calculating the volume coefficient of each small layer of crude oil by using a Marhoun equation,
Figure DEST_PATH_IMAGE002
in the formula: rsThe unit is m for the dissolved gas-oil ratio of the crude oil3/m3；rgThe relative density of the dissolved gas is zero dimensional quantity; r isoIs the relative density of crude oil, and has no dimensional quantity; piIs the pressure measured by the ith measuring instrument, and the unit is MPa; t isiIs the temperature measured by the ith meter in K; b isiIs the volume coefficient of crude oil in the ith small-layer well casing, and the unit is m3/m3；
In the above method for splitting the yield of the multi-layer commingled production well, the step of calculating the split coefficient of the yield of each small layer is,
firstly, recording sound wave frequency data measured by each small layer measuring instrument; the further ultrasonic frequency measurement step is as follows: after the ground controller is electrified and sends out an instruction, the instruction is transmitted to the signal transceiver through the cable and then transmitted to the host, the host controls the sound wave transmitting device and the sound wave receiving device to work and returns the measured data to the host, and the host returns the measured ultrasonic frequency to the ground controller through the signal transceiver and the cable;
secondly, according to the principle of Doppler flow measurement, when the acoustic wave emitting device emits a continuous ultrasonic beam with a frequency f to the fluid in the oil pipe at 30 °, the acoustic wave receiving device receives the continuous ultrasonic beam with the frequency f due to the fluidity of the crude oil in the oil pipeiThe propagation speed of the ultrasonic beam in the crude oil is C, the wavelength is L, the fluid in the oil pipe moves at the speed V, then:
Figure DEST_PATH_IMAGE004
and sequentially calculating the flow velocity of the crude oil flowing through each measuring instrument from top to bottom:
Figure DEST_PATH_IMAGE006
from the formula of the flow velocity
Figure DEST_PATH_IMAGE008
Can obtain a small layer flow of
Figure DEST_PATH_IMAGE010
Because the volume of the fluid of unit mass is different due to the temperature and pressure changes of different small layers, the volume coefficient of the crude oil is considered, and the actual flow in each small layer of oil pipe is calculated as follows:
Figure DEST_PATH_IMAGE012
(ii) a Wherein ViFlow velocity around the ith layer of the meter is given in m/s; c is the propagation speed of the ultrasonic beam in the crude oil, and the unit is m/s; f is the frequency of the sound wave emitted by each sound wave emitting device and has the unit of Hz; f. ofiThe sound wave frequency received by the sound wave receiving device of the ith small-layer measuring instrument is Hz; q. q.sMeasure iIs the flow of crude oil in the ith small layer of oil pipe, and the unit is m3/d；qiThe actual flow of crude oil in the ith small layer of oil pipe is m3/d；DiThe inner diameter of the ith small-layer oil pipe is in m; d is the gauge outer diameter in m;
thirdly, according to the actual flow of the crude oil of each small layer, calculating by adopting a splitting formula to obtain the yield splitting coefficient of the ith small layer, wherein the splitting formula is as follows:
Figure DEST_PATH_IMAGE014
。
the invention has the following advantages: the invention measures the sound wave frequency, the temperature and the pressure of each small layer through the measuring instrument, calculates the compression coefficient of crude oil at each small layer oil pipe through the measured temperature and pressure, and calculates the flow velocity of the crude oil flowing through each small layer through the Doppler principle, thereby calculating the actual flow of the crude oil of each small layer, not only accurately splitting the yield of the oil deposit, but also monitoring the production condition of each small layer in real time, and having strong practicability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the measuring instrument of the present invention.
Reference numbers in the figures: 1. a ground controller; 2. a cable; 3. a measuring instrument; 4. a centralizer; 5. a data line; 6. a signal transceiver; 7. a host; 8. a pressure sensor; 9. a temperature sensor; 10. an acoustic wave emitting device; 11. an acoustic wave receiving device; 12. an oil pipe; 13. and (5) a sand prevention sliding sleeve.
Detailed Description
The present invention will be further described with reference to the following embodiments and drawings.
The invention provides a device and a method for splitting the yield of a multi-layer commingled production well, wherein figure 1 is a schematic structural diagram of the invention, and figure 2 is a schematic structural diagram of a measuring instrument of the invention. The device can accurately split the productivity of the oil reservoir and can monitor the production condition of each small layer in real time, and the specific implementation method comprises the following steps:
firstly, preparing reservoir static parameters including relative density of crude oil, relative density of dissolved gas and solubility of natural gas in crude oil;
secondly, determining the position of each small-layer sand control sliding sleeve of the multi-layer commingled production well, and lowering the measuring instrument to each small layer through a cable, wherein the lowering position is 10cm away from the upper part of the sand control sliding sleeve of each small layer, and the number of the lowering measuring instruments is the same as the number of the commingled production layers;
thirdly, calculating the volume coefficient of the crude oil according to the temperature and pressure data measured by each small layer;
fourthly, calculating the flow velocity of the crude oil in the oil pipe according to the Doppler principle, and calculating the actual flow of each small layer of crude oil according to the flow velocity of the crude oil and the volume coefficient of the crude oil, thereby calculating the yield splitting coefficient of each small layer;
further, the crude oil volume coefficient is calculated by the following steps,
firstly, recording temperature and pressure data measured by each small layer measuring instrument; the further temperature and pressure measuring steps are as follows: after the ground controller is electrified and sends out an instruction, the instruction is transmitted to the signal transceiver through the cable and then transmitted to the host, the host controls the pressure sensor and the temperature sensor to work and returns the measured data to the host, and the host transmits the temperature and pressure data back to the ground controller through the signal transceiver and the cable;
secondly, calculating the volume coefficient of each small layer of crude oil by using a Marhoun equation,
Figure 163983DEST_PATH_IMAGE002
in the formula: rsThe unit is m for the dissolved gas-oil ratio of the crude oil3/m3；rgThe relative density of the dissolved gas is zero dimensional quantity; r isoIs the relative density of crude oil, and has no dimensional quantity; piIs the pressure measured by the ith measuring instrument (3) and has the unit of MPa; t isiIs the temperature measured by the ith measuring instrument (3) and has the unit of K; b isiIs the volume coefficient of crude oil in the ith small-layer well casing, and the unit is m3/m3；
Further, the step of calculating the yield splitting coefficient of each small layer comprises the following steps,
firstly, recording sound wave frequency data measured by each small layer measuring instrument; the further ultrasonic frequency measurement step is as follows: after the ground controller is electrified and sends out an instruction, the instruction is transmitted to the signal transceiver through the cable and then transmitted to the host, the host controls the sound wave transmitting device and the sound wave receiving device to work and returns the measured data to the host, and the host returns the measured ultrasonic frequency to the ground controller through the signal transceiver and the cable;
secondly, according to the principle of Doppler flow measurement, when the acoustic wave emitting device emits a continuous ultrasonic beam with a frequency f to the fluid in the oil pipe at 30 °, the acoustic wave receiving device receives the continuous ultrasonic beam with the frequency f due to the fluidity of the crude oil in the oil pipeiThe propagation speed of the ultrasonic beam in the crude oil is C, the wavelength is L, and the fluid in the oil pipe has the speed ViAnd (3) moving, namely:
Figure 612281DEST_PATH_IMAGE004
and sequentially calculating the flow velocity of the crude oil flowing through each measuring instrument from top to bottom:
Figure 798543DEST_PATH_IMAGE006
(ii) a From the formula of the flow velocity
Figure DEST_PATH_IMAGE015
Can obtain a small layer flow of
Figure DEST_PATH_IMAGE016
Because the volume of the fluid of unit mass is different due to the temperature and pressure changes of different small layers, the volume coefficient of the crude oil is considered, and the actual flow in each small layer of oil pipe is calculated as follows:
Figure 503124DEST_PATH_IMAGE012
(ii) a Wherein ViFlow velocity around the ith layer of the meter is given in m/s; c is the propagation speed of the ultrasonic beam in the crude oil, and the unit is m/s; f is the frequency of the sound wave emitted by each sound wave emitting device and has the unit of Hz; f. ofiThe sound wave frequency received by the sound wave receiving device of the ith small-layer measuring instrument is Hz; q. q.sMeasure iIs the flow of crude oil in the ith small layer of oil pipe, and the unit is m3/d；qiThe actual flow of crude oil in the ith small layer of oil pipe is m3/d；DiThe inner diameter of the ith small-layer oil pipe is in m; d is the gauge outer diameter in m;
thirdly, according to the actual flow of the crude oil of each small layer, calculating by adopting a splitting formula to obtain the yield splitting coefficient of the ith small layer, wherein the splitting formula is as follows:
Figure 724021DEST_PATH_IMAGE014
。
taking JBZ-23 wells as an example, JBZ-23 wells are opened for production at 1 month and 5 days in 2017, and the accumulated oil production of the wells is 10.24 multiplied by 10 by 17 days in 8 months in 20204m3. The well is a 4-layer oil production well, the depth of the first production zone sand control sliding sleeve 13 is 3743.5m, the depth of the second production zone sand control sliding sleeve 13 is 3764.1m, the depth of the third production zone sand control sliding sleeve 13 is 3779.2m, and the depth of the fourth production zone sand control sliding sleeve 13 is 3802.3 m. The depth measurement of the sequentially inserted measuring instrument 13 is as follows: first zone section 3743.4m, second zone section 3764.0m, third zone section 3779.1m, fourth zone section 3802.2 m.
The inner diameter of the oil pipe 12 is 62mm, the outer diameter of the measuring instrument is 34mm, the frequency f of the sound wave transmitted by the sound wave transmitting device 10 of the measuring instrument 3 is 200000Hz, the propagation speed of the sound wave in crude oil is 1500m/s, and the following table 1 lists that 18 days 22 month 1 and 2020: 52: data returned by the measuring instrument at time 13:
TABLE 1
Figure DEST_PATH_IMAGE018
Then, according to the returned temperature and pressure data, the volume coefficient B of the crude oil under the temperature and the pressure is calculatediThe results of the calculation of the volume factor of crude oil are shown in Table 2.
TABLE 2
Figure DEST_PATH_IMAGE020
The flow rate of the crude oil flowing through each meter 3 at that time is then calculated:
Figure DEST_PATH_IMAGE021
therefore, the flow rate in the oil pipe is as follows:
Figure DEST_PATH_IMAGE022
the calculation results are shown in Table 3:
TABLE 3
Figure DEST_PATH_IMAGE024
Finally, according to the actual flow of crude oil in each small layer, the yield splitting coefficient of the ith small layer from top to bottom is
Figure DEST_PATH_IMAGE026
If the first small layer splitting coefficient is 0.272, the second small layer splitting coefficient is 0.136, the third small layer splitting coefficient is 0.242, and the fourth small layer splitting coefficient is 0.350.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.

Claims (5)

1. The utility model provides a multilayer commingled production well output split device, includes measuring apparatu (3), its characterized in that: measuring apparatu (3) link to each other with ground controller (1) through cable (2), measuring apparatu (3) outside be equipped with centralizer (4), measuring apparatu (3) inside by signal transceiver (6), host computer (7), pressure sensor (8), temperature sensor (9), sound wave emitter (10), sound wave receiving arrangement (11) constitute, signal transceiver (6) link to each other through data line (5) with host computer (7), host computer (7) and pressure sensor (8), temperature sensor (9), sound wave emitter (10), sound wave receiving arrangement (11) link to each other through data line (5).
2. The multi-layer commingled production well yield splitting device of claim 1, wherein: the acoustic wave emission device (10) is arranged at the upper left part inside the measuring instrument (3) and can emit an ultrasonic beam with the frequency f, and the angle between the direction of the emitted ultrasonic beam and the shell of the measuring instrument (3) is 30 degrees; the acoustic wave receiving device (11) is arranged at the left lower part inside the measuring instrument (3) and can receive the ultrasonic beam reflected by the crude oil.
3. A split method for the yield of a multi-layer commingled production well, which is realized on the basis of the split device for the yield of the multi-layer commingled production well, as claimed in any one of claims 1-2, and is characterized in that the split method comprises the following steps:
s100, preparing oil reservoir static parameters including the relative density of crude oil, the relative density of dissolved gas and the solubility of natural gas in the crude oil;
s200, determining the position of each small-layer sand control sliding sleeve (13) of the multi-layer commingled production well, and lowering a measuring instrument (3) to each small layer through a cable (2), wherein the lowering position is 10cm away from the upper part of each small-layer sand control sliding sleeve (13), and the number of the lowered measuring instruments is the same as the number of commingled production layers;
s300, calculating the volume coefficient of the crude oil according to the temperature and pressure data measured by each small layer, comprising the following specific steps,
s301, recording temperature and pressure data measured by each small-layer measuring instrument;
s302, calculating the volume coefficient of each small layer of crude oil by using a Marhoun equation,
Figure 974467DEST_PATH_IMAGE001
in the formula: rsThe unit is m for the dissolved gas-oil ratio of the crude oil3/m3；rgThe relative density of the dissolved gas is zero dimensional quantity; r isoIs the relative density of crude oil, and has no dimensional quantity; piIs the pressure measured by the ith measuring instrument, and the unit is MPa; t isiIs the temperature measured by the ith meter in K; b isiIs the volume coefficient of crude oil in the ith small-layer well casing, and the unit is m3/m3；
S400, calculating the flow velocity of the crude oil in the oil pipe according to the Doppler principle, calculating the actual flow of each small layer of crude oil according to the flow velocity of the crude oil and the volume coefficient of the crude oil, and further calculating the yield splitting coefficient of each small layer,
s401, recording sound wave frequency data measured by each small-layer measuring instrument;
s402, calculating the flow velocity of the crude oil flowing through the measuring instrument (3) according to the Doppler principle as follows:
Figure 720837DEST_PATH_IMAGE002
then, the actual flow rate in the oil pipe is as follows:
Figure 186454DEST_PATH_IMAGE003
(ii) a In the formula ViFlow velocity around the ith layer measuring instrument (3) is measured in m/s; c is the propagation of ultrasonic beam in crude oilSpeed in m/s; f is the frequency of the sound wave emitted by each sound wave emitting device (10) and the unit is Hz; f. ofiThe sound wave frequency received by the sound wave receiving device (11) of the ith small-layer measuring instrument (3) is Hz; q. q.siIs the flow of crude oil in the ith small layer of oil pipe, and the unit is m3/d；DiThe inner diameter of the ith small-layer oil pipe is in m; d is the gauge outer diameter in m;
s403, according to the actual flow of the crude oil of each small layer, calculating by adopting a splitting formula to obtain the yield splitting coefficient of the ith small layer, wherein the splitting formula is as follows:
Figure 976555DEST_PATH_IMAGE004
。
4. the split method for the yield of the multi-layer commingled production well according to claim 3, wherein the temperature and pressure measurement steps are as follows: after the ground controller (1) is electrified and sends out an instruction, the power is transmitted to the signal transceiver (6) through the cable (2) and then transmitted to the host (7), the host (7) controls the pressure sensor (8) and the temperature sensor (9) to work, the measured data are returned to the host (7), and the host (7) transmits the temperature and pressure data back to the ground controller (1) through the signal transceiver (6) and the cable (2).
5. The split method for the production capacity of the multi-layer commingled production well according to claim 3, wherein the ultrasonic frequency measuring step comprises the following steps: after the ground controller (1) is electrified and sends out an instruction, the signal is transmitted to the signal transceiver (6) through the cable (2) and then transmitted to the host (7), the host (7) controls the sound wave transmitting device (10) and the sound wave receiving device (11) to work, the measured data are returned to the host (7), and the host (7) transmits the measured ultrasonic frequency back to the ground controller (1) through the signal transceiver (6) and the cable (2).
CN202110191930.XA 2021-02-20 2021-02-20 Device and method for splitting yield of multi-layer commingled production well Pending CN112554868A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161435A (en) * 2013-03-13 2013-06-19 中国石油大学(北京) Well test interpretation method of vertical well for thickened oil thermal recovery
CN204571965U (en) * 2015-03-17 2015-08-19 中稷油服(北京)科技有限公司 One joins water flooding well pipe external flux ultrasonic doppler measurements instrument
CN109403949A (en) * 2018-11-23 2019-03-01 中稷油服(北京)科技有限公司 A kind of supersonic Doppler measuring production profile of oil well device
WO2019213402A1 (en) * 2018-05-02 2019-11-07 Conocophillips Company Production logging inversion based on das/dts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161435A (en) * 2013-03-13 2013-06-19 中国石油大学(北京) Well test interpretation method of vertical well for thickened oil thermal recovery
CN204571965U (en) * 2015-03-17 2015-08-19 中稷油服(北京)科技有限公司 One joins water flooding well pipe external flux ultrasonic doppler measurements instrument
WO2019213402A1 (en) * 2018-05-02 2019-11-07 Conocophillips Company Production logging inversion based on das/dts
CN109403949A (en) * 2018-11-23 2019-03-01 中稷油服(北京)科技有限公司 A kind of supersonic Doppler measuring production profile of oil well device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张学斌: "《冶金工业节能监测》", 31 October 1996, 冶金工业出版社 *
曾庆波: "《微型计算机控制技术》", 31 December 1999, 电子科技大学出版 *

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Application publication date: 20210326