CN112282737A - Low-liquid-volume horizontal well liquid production profile testing device and method - Google Patents
Low-liquid-volume horizontal well liquid production profile testing device and method Download PDFInfo
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- CN112282737A CN112282737A CN202011215343.1A CN202011215343A CN112282737A CN 112282737 A CN112282737 A CN 112282737A CN 202011215343 A CN202011215343 A CN 202011215343A CN 112282737 A CN112282737 A CN 112282737A
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- oil pipe
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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
- E21B47/10—Locating fluid leaks, intrusions or movements
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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
Abstract
The invention belongs to the technical field of oil extraction, and particularly provides a low-liquid-volume horizontal well liquid production profile testing device which at least comprises a gas lifting oil pipe, a continuous oil pipe, a composite cable, a continuous oil pipe operation vehicle, a data gas production processing device and a gas supply device, wherein the gas lifting oil pipe, the continuous oil pipe and the composite cable are sequentially sleeved in a sleeve from outside to inside, the continuous oil pipe operation vehicle is connected with the continuous oil pipe, the data gas production processing device is connected with the composite cable, and the gas supply device is connected with the gas lifting oil pipe.
Description
Technical Field
The invention belongs to the technical field of oil extraction, and particularly relates to a low-liquid-volume horizontal well liquid production profile testing device and method.
Background
In recent years, horizontal wells are used as important technical means for effectively developing low-permeability oil fields, the number of applied wells is rapidly increased, and meanwhile, the problems of water breakthrough and even sudden water flooding of horizontal wells developed by water injection are increasingly highlighted under the influence of factors such as low-permeability reservoir heterogeneity, artificial fractures, natural fractures and the like. The number of horizontal wells currently developed by taking the Changqing oil field as an example accounts for about one third of the total number of horizontal wells of the oil-producing company, and the number of water wells exceeds thousands of wells, so that the capacity loss is serious. Under the background, the technical attack and customs tests of the horizontal well liquid production profile are developed in various oil fields in China. Based on the ubiquitous low-liquid-volume production characteristic of a horizontal well for developing a low-permeability oil field, the conventional PLT well logging technology cannot be adapted, the horizontal well mechanical packing segmented production water exploration testing technology is formed in the current main research and test, the technology is expanded and applied, the long liquid production section testing period is mainly displayed, and a basis cannot be timely provided for early adjustment and comprehensive treatment of the water-exploration horizontal well. Aiming at the technical research of the low-liquid-yield profile test of the low-liquid-yield horizontal well in the low-permeability oil field, the technical research shows that the test exploration stage is on the whole, and no mature technical method can be used for reference.
Disclosure of Invention
The invention provides a low-liquid-volume horizontal well liquid production profile testing device and method, and aims to solve the problems that in the prior art, for the technical research of low-liquid-volume horizontal well liquid production profile testing in a low-permeability oil field, technical research shows that the whole device is in a test exploration stage, and no mature technical method can be used for reference.
Therefore, the invention provides a low-liquid-volume horizontal well liquid production profile testing device which at least comprises a gas lifting oil pipe, a continuous oil pipe, a composite cable, a continuous oil pipe operating vehicle, data gas production processing equipment and a gas supply device, wherein the gas lifting oil pipe, the continuous oil pipe and the composite cable are sequentially sleeved in a sleeve from outside to inside, the continuous oil pipe operating vehicle is connected with the continuous oil pipe, the data gas production processing equipment is connected with the composite cable, and the gas supply device is connected with the gas lifting oil pipe.
The composite cable includes a distributed optical fiber and a data signal transmission line.
The gas supplied by the gas supply device is nitrogen.
The data signal transmission line is a multi-core cable.
The lower end of the composite cable is connected with the continuous oil pipe through the optical fiber fixed joint.
The low-liquid-volume horizontal well liquid production profile testing device is applied to the low-liquid-volume horizontal well liquid production profile testing of the low-permeability oil field.
A method for testing a liquid production section of a low-liquid-volume horizontal well comprises the following steps:
1) putting a process pipe column into a preset position in a shaft, wherein the process pipe column comprises a gas lift oil pipe, a continuous oil pipe and a composite cable;
2) the gas supply device pumps nitrogen into the gas lift oil pipe, so that the well bore production liquid is lifted and discharged to the ground through an annular passage between the coiled oil pipe and the gas lift oil pipe;
3) and 2) during liquid drainage, the coiled tubing operation vehicle performs tripping operation on the coiled tubing, the distributed optical fiber monitors characteristic parameters of liquid production in the horizontal well section, the data signal transmission line transmits the monitoring data to the data gas production processing equipment for analysis and processing, and the liquid production profile condition and the water outlet position of the horizontal well are determined according to the analysis and processing result.
The characteristic parameters of the liquid production of the horizontal well section comprise temperature, pressure, liquid production amount and water content.
The invention has the beneficial effects that: according to the low-liquid-volume horizontal well liquid production profile testing device and method provided by the invention, a process pipe column is put into a preset position in a shaft, and the process pipe column comprises a gas lift oil pipe, a continuous oil pipe and a composite cable; the gas supply device pumps nitrogen into the gas lift oil pipe, so that the well bore production liquid is lifted and discharged to the ground through an annular passage between the coiled oil pipe and the gas lift oil pipe; when the liquid is discharged in the step 2), the coiled tubing operation vehicle carries out tripping operation on the coiled tubing, the distributed optical fiber monitors characteristic parameters of liquid production in the horizontal well section, the data signal transmission line transmits the monitoring data to the data gas production processing equipment for analysis and processing, and the liquid production profile condition and the water outlet position of the horizontal well are determined according to the analysis and processing result; by organically integrating a continuous oil pipe operation technology, a gas lifting and liquid discharging technology and a distributed optical fiber sensing test, the test analysis of the liquid production profile of the low-liquid-volume horizontal well in the low-permeability oil field is realized, the water outlet layer section can be quickly determined, and the test efficiency of the liquid production profile of the horizontal well is improved; compared with the horizontal well subsection production water exploration test process, the process method is short in test period and high in efficiency, and the purpose of rapidly testing the liquid production profile can be achieved.
Drawings
The present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a low-fluid-volume horizontal well fluid production profile testing device.
Description of reference numerals: 1. a sleeve; 2. gas lift tubing; 3. a coiled tubing; 4. a composite cable; 5. data gas production processing equipment; 6. a gas supply device; 7. an optical fiber fixing joint; 8. coiled tubing operation car.
Detailed Description
Example 1:
as shown in fig. 1, the low-liquid-volume horizontal well liquid production profile testing device at least comprises a gas lift oil pipe 2, a coiled oil pipe 3, a composite cable 4, a coiled oil pipe operating vehicle 8, a data gas production processing device 5 and a gas supply device 6, wherein the gas lift oil pipe 2, the coiled oil pipe 3 and the composite cable 4 are sequentially sleeved in a sleeve 1 from outside to inside, the coiled oil pipe operating vehicle 8 is connected with the coiled oil pipe 3, the data gas production processing device 5 is connected with the composite cable 4, and the gas supply device 6 is connected with the gas lift oil pipe 2.
The coiled tubing operation technology is carried out by the coiled tubing 3 and the coiled tubing operation vehicle 8, the gas lift oil pipe 2 and the gas supply device 6 carry out gas lift drainage technology, the composite cable 4 carries out monitoring and data transmission of characteristic parameters of the produced liquid of data, the data gas production processing equipment 5 carries out analysis processing on the monitored data, and through organic integration of the coiled tubing operation technology, the gas lift drainage technology and distributed optical fiber sensing testing, the test analysis of the produced liquid profile of the low-liquid-volume horizontal well in the low-permeability oil field is realized, a water outlet layer section can be rapidly determined, and the test efficiency of the produced liquid profile of the horizontal well is improved.
Further, the composite cable 4 includes a distributed optical fiber and a data signal transmission line. The distributed optical fiber is laid in the coiled tubing 3, under the action of seismic waves (sound pressure), the distributed optical fiber generates micro strain, the refractive index of the optical fiber is correspondingly changed due to photoelastic effect, so that the phase of a Rayleigh scattering interference optical signal in the fiber core of the optical fiber is changed, the distributed sensing of sound waves can be realized through phase demodulation and signal processing, and further the monitoring on the related parameters of the liquid production characteristics of the horizontal well section is realized; and the data signal transmission line transmits the data signal to the ground data gas production processing equipment 5 in real time for analysis, and the liquid production profile condition and the water outlet position of the horizontal well are determined as a result.
Further, the gas supplied by the gas supply device 6 is nitrogen. The nitrogen is inert gas, has wide source, is difficult to generate chemical reaction with other substances at normal temperature, can not generate explosion due to natural gas mixing, and has the characteristics of safe construction, simple process, high liquid discharge speed and controllable liquid discharge depth.
Further, the data signal transmission line is a multi-core cable. The multi-core cable realizes multiple purposes of one cable, is selected according to conditions and has strong applicability.
Further, the device also comprises an optical fiber fixing joint 7, and the lower end of the composite cable 4 is connected with the continuous oil pipe 3 through the optical fiber fixing joint 7. The optical fiber fixing joint 7 prevents the increase of optical fiber loss or fiber breakage caused by the movement of the composite cable direction, greatly improves the optical fiber communication transmission speed and has longer service life.
Furthermore, the low-liquid-volume horizontal well liquid production profile testing device is applied to the low-liquid-volume horizontal well liquid production profile testing of the low-liquid-volume oil field. The method has the advantages that the test analysis of the liquid production profile of the low-liquid-volume horizontal well in the low-permeability oil field is realized, the water outlet layer section can be quickly determined, and the test efficiency of the liquid production profile of the horizontal well is improved.
Example 2:
on the basis of the embodiment 1, the method for testing the liquid production profile of the low-liquid-volume horizontal well comprises the following steps:
1) putting a process pipe column into a preset position in a shaft, wherein the process pipe column comprises a gas lift oil pipe 2, a continuous oil pipe 3 and a composite cable 4;
2) the gas supply device 6 pumps nitrogen into the gas lift oil pipe 2, so that the well bore production liquid is lifted and discharged to the ground through an annular channel between the continuous oil pipe 3 and the gas lift oil pipe 2;
3) and 2) during liquid drainage, the coiled tubing operation vehicle 8 performs tripping operation on the coiled tubing 3, the distributed optical fiber monitors characteristic parameters of liquid production in the horizontal well section, the data signal transmission line transmits the monitoring data to the data gas production processing equipment 5 for analysis and processing, and the liquid production profile condition and the water outlet position of the horizontal well are determined according to the analysis and processing result.
The characteristic parameters of the liquid production of the horizontal well section comprise temperature, pressure, liquid production amount and water content. The characteristic parameters of the produced liquid of the horizontal well section are monitored according to the requirements, the data gas production processing equipment 5 is the existing equipment and is not described in detail, the analysis and the processing of the monitoring data by the data gas production processing equipment 5 are the existing mature process, and manufacturers and users automatically interpret and determine according to algorithms and are not described in detail.
By organically integrating a continuous oil pipe operation technology, a gas lifting and liquid discharging technology and a distributed optical fiber sensing test, the test analysis of the liquid production profile of the low-liquid-volume horizontal well in the low-permeability oil field is realized, the water outlet layer section can be quickly determined, and the test efficiency of the liquid production profile of the horizontal well is improved; compared with the horizontal well subsection production water exploration test process, the process method is short in test period and high in efficiency, and the purpose of rapidly testing the liquid production profile can be achieved.
In the description of the present invention, it is to be understood that the terms "in" and the like are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, so that the terms describing the positional relationship in the drawings are used for illustrative purposes only and are not to be construed as limiting the patent.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (8)
1. The utility model provides a low liquid measure horizontal well liquid production section testing arrangement which characterized in that: the gas-lift oil pipe type oil-gas well drilling tool at least comprises a gas-lift oil pipe (2), a coiled oil pipe (3), a composite cable (4), a coiled oil pipe operation vehicle (8), a data gas production processing device (5) and an air supply device (6), wherein the gas-lift oil pipe (2), the coiled oil pipe (3) and the composite cable (4) are sequentially sleeved in a sleeve (1) from outside to inside, the coiled oil pipe operation vehicle (8) is connected with the coiled oil pipe (3), the data gas production processing device (5) is connected with the composite cable (4), and the air supply device (6) is connected with the gas-lift oil pipe (2).
2. The low volume horizontal well fluid production profile testing device of claim 1, wherein: the composite cable (4) comprises a distributed optical fiber and a data signal transmission line.
3. The low volume horizontal well fluid production profile testing device of claim 1, wherein: the gas supplied by the gas supply device (6) is nitrogen.
4. The low volume horizontal well fluid production profile testing device of claim 2, wherein: the data signal transmission line is a multi-core cable.
5. The low volume horizontal well fluid production profile testing device of claim 1, wherein: the composite cable is characterized by further comprising an optical fiber fixing joint (7), and the lower end of the composite cable (4) is connected with the continuous oil pipe (3) through the optical fiber fixing joint (7).
6. The application of the low-fluid-volume horizontal well fluid production profile testing device as claimed in any one of claims 1-5 to low-fluid-volume horizontal well fluid production profile testing in low-permeability oil fields.
7. A low-liquid-volume horizontal well liquid production profile testing method is characterized by comprising the following steps of: the method comprises the following steps:
1) putting a process pipe column into a preset position in a shaft, wherein the process pipe column comprises a gas lift oil pipe (2), a continuous oil pipe (3) and a composite cable (4);
2) the gas supply device (6) pumps nitrogen into the gas lift oil pipe (2) to enable the well bore produced liquid to be lifted and discharged to the ground through an annular passage between the continuous oil pipe (3) and the gas lift oil pipe (2);
3) and in the step 2), when liquid is drained, the coiled tubing operation vehicle (8) performs tripping operation on the coiled tubing (3), the distributed optical fiber monitors characteristic parameters of liquid production of the horizontal well section, the data signal transmission line transmits the monitoring data to the data gas production processing equipment (5) for analysis and processing, and the liquid production profile condition and the water outlet position of the horizontal well are determined according to the analysis and processing result.
8. The low volume horizontal well fluid production profile testing method of claim 7, characterized in that: the characteristic parameters of the liquid production of the horizontal well section comprise temperature, pressure, liquid production amount and water content.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011215343.1A CN112282737A (en) | 2020-11-04 | 2020-11-04 | Low-liquid-volume horizontal well liquid production profile testing device and method |
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| CN202011215343.1A CN112282737A (en) | 2020-11-04 | 2020-11-04 | Low-liquid-volume horizontal well liquid production profile testing device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893653A (en) * | 2017-08-14 | 2018-04-10 | 东方宝麟科技发展(北京)有限公司 | A kind of method using coiled tubing optical fiber technology testing level well production profile |
| US20190145250A1 (en) * | 2016-06-10 | 2019-05-16 | Halliburton Energy Services, Inc. | Restimulation process using coiled tubing and fiber optics |
| CN110541702A (en) * | 2019-10-14 | 2019-12-06 | 中油奥博(成都)科技有限公司 | underground fluid distribution monitoring system and method based on distributed optical fiber sensing |
| CN110761772A (en) * | 2019-10-20 | 2020-02-07 | 大庆油田有限责任公司 | Online horizontal well liquid production profile logging system applied to oil pipe conveying |
| CN110836110A (en) * | 2019-12-06 | 2020-02-25 | 西安恩诺维新石油技术有限公司 | Logging system based on coiled tubing optical fiber technology |
| CN111441763A (en) * | 2020-04-30 | 2020-07-24 | 中国石油天然气股份有限公司 | Oil field horizontal well liquid production profile testing pipe column, system and method |
-
2020
- 2020-11-04 CN CN202011215343.1A patent/CN112282737A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190145250A1 (en) * | 2016-06-10 | 2019-05-16 | Halliburton Energy Services, Inc. | Restimulation process using coiled tubing and fiber optics |
| CN107893653A (en) * | 2017-08-14 | 2018-04-10 | 东方宝麟科技发展(北京)有限公司 | A kind of method using coiled tubing optical fiber technology testing level well production profile |
| CN110541702A (en) * | 2019-10-14 | 2019-12-06 | 中油奥博(成都)科技有限公司 | underground fluid distribution monitoring system and method based on distributed optical fiber sensing |
| CN110761772A (en) * | 2019-10-20 | 2020-02-07 | 大庆油田有限责任公司 | Online horizontal well liquid production profile logging system applied to oil pipe conveying |
| CN110836110A (en) * | 2019-12-06 | 2020-02-25 | 西安恩诺维新石油技术有限公司 | Logging system based on coiled tubing optical fiber technology |
| CN111441763A (en) * | 2020-04-30 | 2020-07-24 | 中国石油天然气股份有限公司 | Oil field horizontal well liquid production profile testing pipe column, system and method |
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