CN107288615B - Laser solid phase deposition instrument and testing method thereof - Google Patents
Laser solid phase deposition instrument and testing method thereof Download PDFInfo
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- CN107288615B CN107288615B CN201710706476.0A CN201710706476A CN107288615B CN 107288615 B CN107288615 B CN 107288615B CN 201710706476 A CN201710706476 A CN 201710706476A CN 107288615 B CN107288615 B CN 107288615B
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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 discloses a laser solid-phase deposition instrument and a testing method thereof, wherein the laser solid-phase deposition instrument comprises an oven, a PVT cylinder, an intermediate container, a solid-phase deposition container, a PVT cylinder pushing pump, an intermediate container automatic pump, a helium-neon laser transmitter, a photoelectric conversion receiver and a voltmeter; the solid phase deposition container comprises a left end cover, a left cylinder, a sapphire glass sheet cylinder, a right end cover and a collimator, wherein the collimator is arranged on the right end cover; the sapphire glass sheet cylinder is hollow and has a thickness of 2 mm, the left end of the sapphire glass sheet cylinder is connected with the right end of the left cylinder, and the right end of the sapphire glass sheet cylinder is connected with the left end of the right cylinder; the emitting head of the helium-neon laser emitter and the receiving head of the photoelectric conversion receiver are positioned on the same horizontal line, and the photoelectric conversion receiver is connected with the voltmeter. The beneficial effects of the invention are as follows: the device can judge whether the solid phase deposition of crude oil occurs or not through a light transmission method; and the sapphire glass sheet cylinder is thinner, so that the light transmission intensity is greatly improved.
Description
Technical Field
The invention belongs to the technical field of oil and gas exploitation, and particularly relates to a laser solid phase deposition instrument and a testing method thereof.
Background
For low-permeability, low-yield and low-pressure intermittent-injection and weak-injection gas fields, the yield and the pressure of the gas well decrease rapidly after the gas well is put into production. The critical liquid carrying amount of partial gas well is larger than the gas production amount, the accumulated liquid of the well bore is gradually increased, back pressure is formed at the bottom of the well, the production pressure difference is reduced, and the production is reduced or even stopped due to the accumulated liquid. For this purpose, continuous production of gas wells is achieved by taking continuous gas lift, foam, plungers, preferably tubular columns (velocity legs), etc. drainage gas production measures. It is therefore necessary to simulate drainage gas production experiments for horizontal wells.
The conventional simulation experiment device is used for fracturing the horizontal well into an inclined section and a vertical section, and the inclined section is used for inclining the vertical pipe by a certain angle, so that the inclined section of the actual well is not close. Therefore, the inventor designs an experimental device close to a real horizontal well, and takes a horizontal section, an inclined section and a vertical section of the horizontal well as an integral water drainage and gas production experiment of a simulation analysis site.
Disclosure of Invention
The invention mainly solves the defects existing in the prior art and provides a laser solid-phase deposition instrument capable of performing a laser transmission method and a testing method thereof.
The technical scheme adopted for solving the technical problems is as follows: a laser solid-phase deposition instrument comprises an oven, a PVT cylinder, an intermediate container, a solid-phase deposition container, a PVT cylinder pushing pump, an intermediate container automatic pump, a helium-neon laser transmitter, a photoelectric conversion receiver and a voltmeter;
the PVT cylinder, the intermediate container and the solid phase deposition container are all positioned in the oven, and the PVT cylinder pushing pump, the PVT cylinder, the solid phase deposition container, the intermediate container and the intermediate container automatic pump are connected in sequence;
the solid phase deposition container comprises a left end cover, a left cylinder, a sapphire glass sheet cylinder, a right end cover and a collimator, wherein the left end cover is arranged at the left end of the left cylinder, the right end cover is arranged at the right end of the right cylinder, and the collimator is arranged at the right end cover;
the sapphire glass sheet cylinder is hollow and has a thickness of 2 mm, the left end of the sapphire glass sheet cylinder is connected with the right end of the left cylinder, the right end of the sapphire glass sheet cylinder is connected with the left end of the right cylinder, and the sapphire glass sheet cylinder is respectively connected with the PVT cylinder and the middle container;
the emitting head of the helium-neon laser emitter is arranged on the left end cover, the receiving head of the photoelectric conversion receiver is arranged on the collimator, the emitting head of the helium-neon laser emitter and the receiving head of the photoelectric conversion receiver are positioned on the same horizontal line, and the photoelectric conversion receiver is connected with the voltmeter.
Further, the collimator comprises a base, a light fixing seat, an aspherical lens barrel, an aspherical mirror and an aspherical mirror pressing ring, wherein the light fixing seat is arranged on the left end face of the base, the aspherical mirror and the aspherical mirror pressing ring are both positioned in the aspherical lens barrel, the aspherical mirror is pressed by the aspherical mirror pressing ring, and the aspherical lens barrel is arranged on the right end face of the base.
A laser solid phase deposition test method comprising the steps of:
step S101, adding crude oil into a PVT cylinder, an intermediate container and a solid phase deposition container;
step S102, pushing a pump by using the PVT cylinder to guide crude oil in the PVT cylinder into an intermediate container at constant pressure;
step S103, re-introducing crude oil in the intermediate container into the PVT cylinder at constant pressure by using the intermediate container automatic pump;
step S104, repeating the step S102 and the step S103 for three times, thereby ensuring the uniformity of the crude oil of the solid phase deposition container;
step S105, turning on a helium-neon laser transmitter, a photoelectric conversion receiver and a voltmeter, enabling the helium-neon laser transmitter to transmit helium-neon laser to the sapphire glass sheet cylinder, enabling the helium-neon laser to pass through the sapphire glass sheet cylinder and reach the photoelectric conversion receiver to be received, converting the laser into an electric signal, and enabling the voltmeter to receive the electric signal to display voltage;
step S106, changing the temperature through an oven, pushing a pump through a PVT cylinder, automatically pumping an intermediate container to adjust the pressure in the solid phase deposition container, and recording the voltage after changing the temperature and the pressure;
and step S107, judging the received laser intensity through voltage, and testing whether solid phase deposition occurs in the crude oil at a specific temperature and pressure from the received laser intensity.
Compared with the conventional experimental device, the invention has the beneficial effects that: the device can judge whether the solid phase deposition of crude oil occurs or not through a light transmission method; and the sapphire glass sheet cylinder is thinner, so that the light transmission intensity is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the structure of the collimator in the embodiment.
The figure shows: 1-oven, 2-PVT cylinder, 3-intermediate container, 4-solid phase deposition container, 5-PVT cylinder push pump, 6-intermediate container automatic pump, 7-helium neon laser transmitter, 8-photoelectric conversion receiver, 9-voltmeter, 10-left end cover, 11-left cylinder, 12-sapphire glass sheet cylinder, 13-right cylinder, 14-right end cover, 15-collimator, 16-base, 17-light fixing seat, 18-aspheric lens barrel, 19-aspheric lens, 20-aspheric lens press ring.
Detailed Description
The technical scheme of the invention is further specifically described below by examples and with reference to the accompanying drawings.
As shown in fig. 1 and 2, a laser solid-phase deposition apparatus of the present invention comprises an oven 1, a PVT cartridge 2, an intermediate container 3, a solid-phase deposition container 4, a PVT cartridge pushing pump 5, an intermediate container automatic pump 6, a helium-neon laser emitter 7, a photoelectric conversion receiver 8, and a voltmeter 9; the PVT cylinder 2, the intermediate container 3 and the solid phase deposition container 4 are all positioned in the oven 1, and the PVT cylinder pushing pump 5, the PVT cylinder 2, the solid phase deposition container 4, the intermediate container 3 and the intermediate container automatic pump 6 are connected in sequence and are communicated through pipelines; the solid phase deposition container 4 comprises a left end cover 10, a left cylinder 11, a sapphire glass sheet cylinder 12, a right cylinder 13, a right end cover 14 and a collimator 15, wherein the left end cover 10 is arranged on the left end of the left cylinder 11, the right end cover 14 is arranged on the right end of the right cylinder 13, and the collimator 15 is arranged on the right end cover 14; the sapphire glass sheet cylinder 12 is hollow and has a thickness of 2 mm, crude oil can be pumped into the sapphire glass sheet cylinder 12 and has a thin wall, laser can be shot through, the left end of the sapphire glass sheet cylinder is connected with the right end of the left cylinder 11, the right end of the sapphire glass sheet cylinder is connected with the left end of the right cylinder 13, the sapphire glass sheet cylinder 12 is respectively connected with the PVT cylinder 2 and the middle container 3, and the connection positions of the sapphire glass sheet cylinder and the PVT cylinder are opposite; the transmitting head of the helium-neon laser transmitter 7 is arranged on the left end cover 10, the receiving head of the photoelectric conversion receiver 8 is arranged on the collimator 15, the transmitting head of the helium-neon laser transmitter 7 and the receiving head of the photoelectric conversion receiver 8 are positioned on the same horizontal line, the transmitting head directly transmits laser, the left cylinder 11 and the right cylinder 13 are provided with cavities, the laser is transmitted in the cavities, the laser linearly penetrates through the sapphire glass sheet cylinder 12 to reach the receiving head and is converted into an electric signal by the photoelectric conversion receiver 8, the photoelectric conversion receiver 8 is connected with the voltmeter 9, the voltmeter 9 displays the voltage of the electric signal, and the intensity of the received laser is judged from the voltage.
In order to more accurately receive the laser light and avoid interference of other light, as shown in fig. 2, in a preferred embodiment, the collimator 15 includes a base 16, a light fixing seat 17, an aspherical lens barrel 18, an aspherical lens 19, and an aspherical lens pressing ring 20, where the light fixing seat 17 is mounted on a left end surface of the base 16, the aspherical lens 19 and the aspherical lens pressing ring 20 are both located in the aspherical lens barrel 18, and the aspherical lens pressing ring 20 presses the aspherical lens 19, and the aspherical lens barrel 18 is mounted on a right end surface of the base 16.
A laser solid phase deposition test method comprising the steps of:
step S101, adding crude oil into the PVT cylinder 2, the intermediate container 3 and the solid phase deposition container 4;
step S102, pushing a pump 5 by using the PVT cylinder to guide crude oil in the PVT cylinder 2 into the middle container 3 at constant pressure;
step S103, re-introducing crude oil in the intermediate container 3 into the PVT cylinder 2 at constant pressure by using the intermediate container automatic pump 6;
step S104, repeating step S102 and step S103 for three times, thereby ensuring the uniformity of the crude oil of the solid phase deposition container 4;
step S105, turning on the He-Ne laser transmitter 7, the photoelectric conversion receiver 8 and the voltmeter 9, so that the He-Ne laser transmitter 7 transmits He-Ne laser to the sapphire glass sheet cylinder 12, the He-Ne laser passes through the sapphire glass sheet cylinder 12 to reach the photoelectric conversion receiver 8 for receiving, and converts the laser into an electric signal, and the voltmeter 9 receives the electric signal to display the voltage;
step S106, changing the temperature through the oven 1, pushing the pump 5 through the PVT cylinder, and automatically regulating the pressure in the solid phase deposition container 4 through the intermediate container automatic pump 6, and recording the voltage after changing the temperature and the pressure;
and step S107, judging the received laser intensity through voltage, and testing whether solid phase deposition occurs in the crude oil at a specific temperature and pressure from the received laser intensity.
The present invention is not limited to the above embodiments, but is not limited to the above embodiments, and any simple modification, equivalent changes and modification of the above embodiments according to the technical principles of the present invention can be made by those skilled in the art without departing from the scope of the technical aspects of the present invention.
Claims (2)
1. The laser solid-phase deposition instrument is characterized by comprising an oven (1), a PVT cylinder (2), an intermediate container (3), a solid-phase deposition container (4), a PVT cylinder pushing pump (5), an intermediate container automatic pump (6), a helium-neon laser transmitter (7), a photoelectric conversion receiver (8) and a voltmeter (9);
the PVT cylinder (2), the intermediate container (3) and the solid phase deposition container (4) are all positioned in the oven (1), and the PVT cylinder pushing pump (5), the PVT cylinder (2), the solid phase deposition container (4), the intermediate container (3) and the intermediate container automatic pump (6) are connected in sequence;
the solid phase deposition container (4) comprises a left end cover (10), a left cylinder (11), a sapphire glass sheet cylinder (12), a right cylinder (13), a right end cover (14) and a collimator (15), wherein the left end cover (10) is arranged at the left end of the left cylinder (11), the right end cover (14) is arranged at the right end of the right cylinder (13), and the collimator (15) is arranged at the right end cover (14);
the sapphire glass sheet cylinder (12) is hollow and has a thickness of 2 mm, the left end of the sapphire glass sheet cylinder is connected with the right end of the left cylinder (11), the right end of the sapphire glass sheet cylinder is connected with the left end of the right cylinder (13), and the sapphire glass sheet cylinder (12) is respectively connected with the PVT cylinder (2) and the middle container (3);
the transmitting head of the helium-neon laser transmitter (7) is arranged on the left end cover (10), the receiving head of the photoelectric conversion receiver (8) is arranged on the collimator (15), the transmitting head of the helium-neon laser transmitter (7) and the receiving head of the photoelectric conversion receiver (8) are positioned on the same horizontal line, and the photoelectric conversion receiver (8) is connected with the voltmeter (9);
the collimator (15) comprises a base (16), a light fixing seat (17), an aspheric lens barrel (18), an aspheric lens (19) and an aspheric lens pressing ring (20), wherein the light fixing seat (17) is arranged on the left end face of the base (16), the aspheric lens (19) and the aspheric lens pressing ring (20) are both positioned in the aspheric lens barrel (18), the aspheric lens (19) is pressed by the aspheric lens pressing ring (20), and the aspheric lens barrel (18) is arranged on the right end face of the base (16).
2. A method for testing a laser solid phase deposition instrument, comprising the steps of:
step S101, adding crude oil into a PVT cylinder (2), an intermediate container (3) and a solid phase deposition container (4);
step S102, pushing a pump (5) by using the PVT cylinder to guide crude oil in the PVT cylinder (2) into the intermediate container (3) at constant pressure;
step S103, re-using an automatic pump (6) of the intermediate container to guide crude oil in the intermediate container (3) into the PVT cylinder (2) at constant pressure again;
step S104, repeating the step S102 and the step S103 for three times, thereby ensuring the uniformity of the crude oil of the solid phase deposition container (4);
step S105, a helium-neon laser transmitter (7), a photoelectric conversion receiver (8) and a voltmeter (9) are turned on, the helium-neon laser transmitter (7) transmits helium-neon laser to the sapphire glass sheet cylinder (12), the helium-neon laser passes through the sapphire glass sheet cylinder (12) to reach the photoelectric conversion receiver (8) for receiving, the laser is converted into an electric signal, and the electric signal is received by the voltmeter (9) to display voltage;
step S106, changing the temperature through the oven (1), pushing the pump (5) through the PVT cylinder, and regulating the pressure in the solid phase deposition container (4) through the automatic pump (6) of the intermediate container, and recording the voltage after changing the temperature and the pressure;
and step S107, judging the received laser intensity through voltage, and testing whether solid phase deposition occurs in the crude oil under the temperature and the pressure from the received laser intensity.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110763757A (en) * | 2019-11-21 | 2020-02-07 | 西南石油大学 | Device and method for testing crude oil solid phase deposition by pulse reflection |
| CN111879736B (en) * | 2020-07-31 | 2022-11-15 | 西南石油大学 | Device and method for determining solid-phase deposition conditions of crude oil in high-temperature ultrahigh-pressure oil reservoir |
| CN112083148B (en) * | 2020-09-16 | 2021-04-06 | 西南石油大学 | Device and method for measuring solid phase precipitation amount of high-temperature and high-pressure fluid |
| CN113075081B (en) * | 2021-04-08 | 2022-07-15 | 西南石油大学 | Device and method for measuring solid phase deposition amount in multiple contact processes of injected gas and crude oil |
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