CN113027401A - Gas well medicament preparation method, gas well medicament and gas well medicament filling method - Google Patents
Gas well medicament preparation method, gas well medicament and gas well medicament filling method Download PDFInfo
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- CN113027401A CN113027401A CN201911350502.6A CN201911350502A CN113027401A CN 113027401 A CN113027401 A CN 113027401A CN 201911350502 A CN201911350502 A CN 201911350502A CN 113027401 A CN113027401 A CN 113027401A
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- gas well
- medicament
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- well
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing, limiting or eliminating the deposition of paraffins or like substances
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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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
Abstract
The invention relates to a gas well medicament preparation method, a gas well medicament and a gas well medicament injection method. According to the preparation method of the gas well medicament, the solid medicament obtained after the liquid gas well medicament is frozen can be obtained by using the method, and when the solid medicament is thrown into a gas well, the solid gas well medicament is not easily influenced by the pressure in the well and the inner wall of a shaft, and can quickly fall into the bottom of the gas well by depending on the gravity of the solid medicament; in addition, the frozen gas well agent can directly fall into the bottom of the well, so that the inner wall of the well can not be damaged due to reaction with the inner wall of the well.
Description
Technical Field
The invention belongs to the field of gas field development agent filling, and particularly relates to a gas well agent preparation method, a gas well agent and a gas well agent filling method.
Background
Various medicaments are required to be added in the production process of the gas well, including foam scrubbing agent, scale remover, corrosion inhibitor, scale inhibitor and the like. For example, the foam discharging agent is used for assisting the liquid discharge of a water producing gas well, for example, the foam discharging agent for water discharge and gas production of a high-temperature water producing gas well, which is disclosed by the Chinese invention patent with the publication number of CN101899290B and the application date of 2010.05.20; for another example, the detergent is used for dissolving the scale in the gas well and enlarging the airflow channel, and most of the conventional detergents are acidic liquids, such as a detergent for a water injection well disclosed in the Chinese invention patent with the publication number of CN105754567B and the application date of 2014.12.17, and the main agent of the detergent is hydrochloric acid, carboxymethyl cellulose and the like.
The currently used medicaments can be divided into liquid and solid, the liquid medicament needs to be filled by an electric pump or a pneumatic pump, and the solid medicament can be added from a valve of a gas production tree at a well mouth. Both the current liquid medicament and solid medicament have certain disadvantages:
for liquid medicaments: due to the influence of the air pressure in the gas well and the interference of the inner wall of the shaft, the liquid medicament is unstable in interference form and low in falling speed, and a liquid medicament slug is easy to form in the shaft; because the liquid medicament has low dropping speed, when in use, the well needs to be closed for a long time in order to ensure that the liquid medicament completely drops to the bottom of the 3000-meter well with 2000-sand well, thereby reducing the production rate. Particularly, for the scale remover, most of the conventional scale remover is acidic liquid, and the acidic scale remover flows to the bottom of the well along the inner wall of the well after being filled, so that the inner wall of the well is corroded, and the scale removing effect of the bottom of the well is reduced.
The existing solid medicaments, such as the foam discharging rod and the foam discharging ball, are generally filled by adopting corresponding filling devices, such as an automatic filling device for the foam discharging ball disclosed in the Chinese patent with the publication number of CN102797445B and the application date of 2012.09.06. Although the solid medicament has small influence on the pressure in a gas well after being put into the well, can quickly reach the bottom of the well under the action of gravity, and needs short well closing time, the solid medicament is usually 3-4 times of the liquid medicament, and the cost of using the existing solid medicament is high.
Disclosure of Invention
The invention aims to provide a gas well medicament, aims to solve the problems of long shut-in time, low production time rate and high solid gas well medicament cost of a liquid gas well medicament in the prior art, also aims to provide a gas well medicament filling method, aims to solve the problems of long shut-in time, low production time rate and high solid gas well medicament filling cost in the prior art when a liquid gas well medicament is filled, and further provides a gas well medicament preparation method.
In order to achieve the purpose, the preparation method of the gas well medicament adopts the following scheme:
the method for preparing the gas well medicament comprises the step of freezing liquid gas well medicament into a solid state to obtain solid medicament.
The invention has the technical effects that: according to the preparation method of the gas well medicament, the solid medicament obtained after the liquid gas well medicament is frozen can be obtained by using the method, when the solid medicament is put into a gas well, the solid gas well medicament is not easily influenced by the pressure in the well and the inner wall of the shaft, and can quickly fall into the bottom of the gas well by depending on the self gravity, compared with the well closing time required after the liquid gas well medicament is put in the prior art, the well closing time required by the solid medicament obtained by using the preparation method of the gas well medicament is shorter, the production time rate is improved, and compared with the solid medicament in the prior art, the raw material of the gas well medicament used by the preparation method of the gas well medicament is still the liquid medicament, so the cost is lower; in addition, the frozen gas well agent can directly fall into the bottom of the well, so that the inner wall of the well can not be damaged due to reaction with the inner wall of the well.
Further, the solid gas well chemical is rod-shaped or spherical.
The beneficial effects are that: the cross section shape of the rod-shaped or spherical gas well medicament is matched with that of the inner cavity of the shaft and is round, and the gas well medicament is arranged into a rod shape or a spherical shape, so that the gas well medicament frozen into a solid state can smoothly pass through the shaft and fall into the bottom of the shaft.
Further, the liquid gas well medicament is frozen and formed in a bag-shaped container with a corresponding shape, and after the solid medicament is obtained by freezing, the bag-shaped container is kept outside the solid medicament to be used as a package.
The beneficial effects are that: because the liquid gas well medicament is frozen and molded in the bag-shaped container with the corresponding shape, the shape of the frozen gas well medicament can meet the requirement on the shape, and secondary processing is not needed to be carried out on the shape of the frozen gas well medicament, so that the process for obtaining the solid gas well medicament with the specific shape is simpler;
the bag-shaped container is light in weight and convenient to transport; the bag-shaped container has lower cost; after the bag-shaped container is packaged, the gas well medicament cannot leak, and even if the gas well medicament after being frozen is slightly melted in the transferring or transporting process, the gas well medicament cannot leak out of the packaging bag.
Further, the solid medicament comprises any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of the foam scrubbing agent, the scale remover, the corrosion inhibitor and the scale inhibitor.
The beneficial effects are that: according to actual needs, the method can be used for freezing one gas well medicament or a mixture obtained by mixing a plurality of gas well medicaments in proportion and injecting the frozen gas well medicament into the well, so that the gas well medicament injection method is wide in application range of gas well medicaments. In addition, for the solid gas well medicament, when a mixture of a plurality of medicaments is filled, the frequency of filling the gas well medicament can be reduced, and the workload and the construction cost are reduced.
In order to achieve the purpose, the gas well medicament adopts the following scheme:
the gas well medicament is a solid medicament which is frozen into a solid state.
The invention has the technical effects that: the gas well medicament is a solid medicament frozen into a solid, when the solid medicament is put into a gas well, the solid gas well medicament is not easily influenced by the pressure in the well and the inner wall of a shaft, and can quickly fall into the bottom of the gas well by the gravity of the solid medicament; in addition, the frozen gas well agent can directly fall into the bottom of the well, so that the inner wall of the well can not be damaged due to reaction with the inner wall of the well.
Further, the solid gas well chemical is rod-shaped or spherical.
The beneficial effects are that: the cross section shape of the rod-shaped or spherical gas well medicament is matched with that of the inner cavity of the shaft and is round, and the gas well medicament is arranged into a rod shape or a spherical shape, so that the gas well medicament frozen into a solid state can smoothly pass through the shaft and fall into the bottom of the shaft.
Further, the solid medicament comprises any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of the foam scrubbing agent, the scale remover, the corrosion inhibitor and the scale inhibitor.
The beneficial effects are that: according to actual needs, the method can be used for freezing one gas well medicament or a mixture obtained by mixing a plurality of gas well medicaments in proportion and injecting the frozen gas well medicament into the well, so that the gas well medicament injection method is wide in application range of gas well medicaments. In addition, for the solid gas well medicament, when a mixture of a plurality of medicaments is filled, the frequency of filling the gas well medicament can be reduced, and the workload and the construction cost are reduced.
In order to achieve the purpose, the gas well medicament filling method adopts the following scheme:
the gas well chemical filling method adopts solid chemical frozen into solid.
The invention has the technical effects that: according to the gas well medicament injection method, the gas well medicament is frozen to be solid and then is put into the gas well, and the solid gas well medicament is not easily influenced by the pressure in the well and the inner wall of the shaft and can quickly fall into the bottom of the gas well by means of the gravity of the gas well medicament; in addition, the frozen gas well agent can directly fall into the bottom of the well, so that the inner wall of the well can not be damaged due to reaction with the inner wall of the well.
Further, the solid gas well chemical is rod-shaped or spherical.
The beneficial effects are that: the cross section shape of the rod-shaped or spherical gas well medicament is matched with that of the inner cavity of the shaft and is round, and the gas well medicament is arranged into a rod shape or a spherical shape, so that the gas well medicament frozen into a solid state can smoothly pass through the shaft and fall into the bottom of the shaft.
Further, the solid medicament comprises any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of the foam scrubbing agent, the scale remover, the corrosion inhibitor and the scale inhibitor.
The beneficial effects are that: according to actual needs, the method can be used for freezing one gas well medicament or a mixture obtained by mixing a plurality of gas well medicaments in proportion and injecting the frozen gas well medicament into the well, so that the gas well medicament injection method is wide in application range of gas well medicaments. In addition, for the solid gas well medicament, when a mixture of a plurality of medicaments is filled, the frequency of filling the gas well medicament can be reduced, and the workload and the construction cost are reduced.
Drawings
Fig. 1 is a schematic perspective view of an ice sucker as an intumescent agent in example 1 of a gas well agent filling method of the present invention;
FIG. 2 is a front view of the pop-up ice lolly of FIG. 1;
FIG. 3 is a top view of the pop-up ice bar of FIG. 1;
FIG. 4 is a schematic diagram of the position of a valve on a gas tree of the prior art;
FIG. 5 is a schematic perspective view of a foam expulsion iceball of example 3 of the gas well agent injection method of the present invention;
FIG. 6 is a top view of the pop-up ice ball of FIG. 5;
fig. 7 is a schematic perspective view of a foam discharging agent cylindrical ice-lolly in example 4 of the gas well agent filling method of the present invention;
FIG. 8 is a front view of the foam expeller stick cylinder of FIG. 7;
FIG. 9 is a top view of the foam expellant cylindrical ice lolly of FIG. 7;
in the drawings: 20-foam discharging agent ice lolly; 21-a cone section; 22-a cylindrical section; valve No. 1-1; valve No. 2-2; a valve number 3-3; a valve number 4-4; a number 5-5 valve; 6-6 valves; a No. 7-7 valve; a number 8-8 valve; valve number 9-9; number 10-10 valves; valve number 11-11; 12-foam discharging agent ice ball; 13-foam discharging agent cylindrical ice-lolly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
A gas well chemical injection method of the present invention will now be described in detail.
Specific example 1 of the gas well chemical injection method of the present invention:
the gas well medicament in the embodiment is a foam discharging agent, and the filling of the foam discharging agent comprises the following steps:
1) injecting the prepared liquid foam discharging agent into a packaging bag; the packaging bag is in a rod shape, and the end part of the packaging bag is in a conical shape;
2) putting the rod-shaped packaging bag filled with the liquid foam discharging agent into a refrigerating device in a gas field well station for freezing until the packaging bag is completely frozen;
3) carrying the frozen foam discharging agent ice sticks to the position of a gas production tree of a gas well;
4) after the packaging bag is removed, the foam discharging agent ice-lolly is thrown into the shaft through the gas production tree.
In step (1), the packaging bag is not only a container for the liquid foam discharging agent, but also a forming container for the liquid foam discharging agent, and the shape of the frozen liquid foam discharging agent is determined by the shape of the packaging bag. The packaging bag in the embodiment is of a rod-shaped structure with a conical end, as shown in fig. 1 to 3, the frozen pop-up ice stick 20 is also of a rod-shaped structure with a conical end and consists of a conical section 21 and a cylindrical section 22, and the cross section of the conical section 21 is gradually increased towards the direction of the cylindrical section 22, so that the conical section 21 can guide the pop-up ice stick 20 in the process of inserting the pop-up ice stick 20 into a shaft, and the pop-up ice stick 20 can more easily enter the shaft; the cross section shape of the rod-shaped structure is matched with the cross section shape of the inner cavity of the shaft, and the two are both round, so that the foam discharging agent ice-lolly 20 with the rod-shaped structure can pass through the shaft smoothly and reach the bottom of the shaft.
Since the chemicals used in gas wells are generally stored in gas field well stations, the liquid foam discharging agent required in step (1) can be prepared in the gas field well stations, and then the prepared liquid foam discharging agent is put into refrigeration equipment in the gas field well stations for refrigeration to complete step (2), and it is noted that the condensation point of the liquid foam discharging agent is-6 ℃ to-4 ℃, so that the temperature control is required during refrigeration.
In the step (3), the foam discharging agent is positioned in the packaging bag, so that the foam discharging agent cannot leak out even if a small amount of the foam discharging agent popsicle is melted into liquid in the transferring process.
For step (4), a common gas production tree typically has eleven valves, as shown in fig. 4, including: four sleeve valves (valve 2, valve 3, valve 5, valve 6 No. 2), two main valves (valve 1, valve 4 No. 4), two needle valves (valve 10, valve 11 No. 10), two oil pipe valves (valve 8, valve 9 No. 9) and valve 7 No. 7. The sleeve valves (2, 3, 5 and 6) are communicated with the oil sleeve annulus, the main valves (1, 4) are communicated with the oil pipe, the main valves are used for controlling natural gas to flow into a main channel of the Christmas tree, the oil pipe valves (8, 9) are connected with the oil pipe, and the 7 valve is also communicated with the oil pipe.
When the step (4) is carried out, firstly, two main valves (a valve 1 and a valve 4) of the gas production tree are closed, then, a valve 7 is opened, after the packaging bag is removed, the foam discharging agent ice lolly is put into the valve 7, then, the valve 7 is closed, then, the two main valves are opened, and the foam discharging agent ice lolly falls into the shaft under the action of self gravity.
Generally, after the liquid foam discharging agent is filled, due to the influence of the air pressure in the well, the liquid foam discharging agent is unstable in interference shape and slow in falling speed, so that in order to ensure the drug effect, the well is shut down for four hours after the liquid foam discharging agent is filled, the drug can fully fall into the bottom of the well, then the production operation can be carried out, and the production time rate is low.
The gas well medicament filling method is used for filling the foam discharging agent, the ice stick of the foam discharging agent is solid, so that the ice stick of the foam discharging agent is not easily influenced by the pressure in the gas well in the falling process, and the ice stick of the foam discharging agent is not easily interfered with the inner wall of the shaft because of the rod-shaped structure of the ice stick of the foam discharging agent, so that the ice stick of the foam discharging agent can quickly fall into the bottom of the shaft of the gas well by means of the gravity of the ice stick of the foam discharging agent, the ice stick of the foam discharging agent can normally play a role only by closing the shaft for two hours, and then the gas well can perform production operation, so that. The well shut-in time required after the foam discharging agent ice stick is put into the gas well is consistent with the well shut-in time required after the foam discharging agent ice stick in the prior art is put into the gas well, but the cost is lower because the raw material of the foam discharging agent ice stick is still liquid foam discharging agent.
Specific example 2 of the gas well chemical injection method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: the gas well chemical in example 1 is a foam scrubbing agent, and in this example, the gas well chemical is a scale remover, and the scale remover is an acidic chemical and is used for removing scale on the wall of a well bore.
In the prior art, the filling method of the liquid scale remover is direct wellhead pumping, the liquid scale remover pumped into the shaft falls along the inner wall of the shaft, but the shaft is made of metal, and the liquid scale remover easily reacts with the shaft in the falling process of the liquid scale remover along the inner wall of the shaft, so that the metal shaft is seriously corroded, and the scale remover is consumed.
The liquid scale remover is added by using the gas well medicament adding method, the liquid scale remover is frozen into a solid state, the frozen scale remover ice-lolly is added into the shaft by using the gas production tree, and the scale remover ice-lolly is solid, so the scale remover ice-lolly is not easy to react with the inner wall of the shaft when passing through the shaft, and cannot corrode the shaft.
In other embodiments, the gas well chemical agent is any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of the foam scrubbing agent, the scale remover, the corrosion inhibitor and the scale inhibitor.
Specific example 3 of the gas well chemical injection method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: the packaging bag used in example 1 had a rod-like structure with a tapered end and the frozen solid foam-discharging agent also had a rod-like structure with a tapered end, and in this example, as shown in fig. 5 and 6, the packaging bag was spherical and the frozen solid foam-discharging agent was also spherical, that is, the foam-discharging agent ice ball 12 was obtained.
Because the ice ball of bubble row is spherical structure, structural strength is higher relatively, in the in-process that falls, is difficult to because of the factor cracked such as colliding with.
Specific example 4 of the gas well chemical injection method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: the packaging bag used in example 1 had a rod-like structure with a tapered end, and the frozen solid foam discharging agent also had a rod-like structure with a tapered end, and in this example, as shown in fig. 7 to 9, the packaging bag had a cylindrical shape, and the frozen solid foam discharging agent also had a cylindrical shape, that is, the foam discharging agent cylindrical ice lolly 13 was obtained.
Specific example 5 of the gas well chemical injection method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: in embodiment 1, the forming container of the foam discharging agent is a packaging bag, and in this embodiment, the forming container of the foam discharging agent is a rigid plastic mold, the rigid plastic mold has a cavity for containing the liquid foam discharging agent, the cavity has a rod-shaped structure, and the bottom end of the cavity is tapered, so that the frozen solid foam discharging agent can be conveniently taken out of the mold, and the cavity of the rigid plastic mold is further provided with a draft angle of a certain angle. When the ice-lolly is used, the liquid foam discharging agent is injected into a cavity of a hard plastic mould, and then the mould is transferred into a freezing device to be frozen to obtain the foam discharging agent ice-lolly.
Because the shape of the rigid plastic mould is stable, the pouring of the liquid foam discharging agent is more convenient, and the shape of the solid foam discharging agent obtained after freezing is not easy to deform.
Specific example 6 of the gas well agent filling method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: in the embodiment, the freezing equipment is arranged at the position of the gas production tree, the liquid foam discharging agent filled in the packaging bag is placed in the freezing equipment for freezing, after freezing is finished, the obtained foam discharging agent ice stick is directly taken out, and after the packaging bag is detached, the foam discharging agent ice stick is placed in the shaft through the gas production tree.
Compared with the embodiment 1, the filling method in the embodiment omits the step of transporting the foam discharging agent popsicle, and saves the time consumed by transporting the foam discharging agent popsicle.
Specific example 7 of the gas well chemical injection method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: the foam discharging agent in the embodiment 1 is frozen in a freezing device in a gas field well station, then the frozen foam discharging agent ice-lolly is conveyed to the position of a gas well gas production tree, and then the foam discharging agent ice-lolly is thrown into a shaft through the gas production tree.
Specific example 8 of the gas well agent injection method of the present invention:
the gas well chemical agent filling method in the present embodiment is different from the gas well chemical agent filling method in embodiment 1 only in that: in this embodiment, the gas well medicament is a foam discharging agent popsicle, and when the foam discharging agent popsicle is put in, the foam discharging agent popsicle is put into a valve No. 7 of a gas production tree and then falls into a shaft by virtue of self gravity, in this embodiment, the gas well medicament is a foam discharging agent popsicle, and an automatic foam discharging ball filling device is installed on the gas production tree, and specifically, the filling device is an automatic foam discharging ball filling device which is mentioned in the background technology and has an authorization notice No. CN102797445B and an application date of 2012.09.06.
A specific embodiment of the method for producing a gas well chemical of the present invention will now be described.
Specific example 1 of the gas well chemical preparation method of the present invention:
the gas well medicament in this embodiment is an intumescent agent, and the preparation method of the intumescent agent includes step (1) and step (2) in specific embodiment 1 of the gas well medicament injection method, which is not described herein again.
In other embodiments of the method for preparing a gas well chemical of the present invention, the method for preparing a gas well chemical includes step (1) and step (2) in any one of embodiments 2 to 5 of the method for injecting a gas well chemical, which are not described herein again.
Specific embodiments of the gas well agent of the present invention will now be described.
The gas well medicament in this embodiment is a foam discharging agent, and the foam discharging agent is the foam discharging agent popsicle in specific embodiment 1 of the gas well medicament filling method, and details are not repeated here.
In other embodiments of the gas well chemical agent of the present invention, the gas well chemical agent is a gas well chemical agent in any one of specific embodiments 2 to 5 of a gas well chemical agent injection method, and details are not repeated herein.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The method for preparing the gas well medicament is characterized by comprising the step of freezing liquid gas well medicament into a solid state to obtain solid medicament.
2. The method for preparing a gas well agent as recited in claim 1 wherein the solid agent is in the form of a rod or sphere.
3. A method for preparing a gas well chemical according to claim 1 or 2, wherein the liquid gas well chemical is formed by freezing in a bag-shaped container of a corresponding shape, and after the solid chemical is obtained by freezing, the bag-shaped container is kept outside the solid chemical to be packaged.
4. The method for preparing a gas well chemical as claimed in claim 1 or 2, wherein the solid chemical comprises any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of the foam scrubbing agent, the scale remover, the corrosion inhibitor and the scale inhibitor.
5. The gas well chemical is characterized in that the gas well chemical is a solid chemical frozen into a solid state.
6. Gas well agent according to claim 5, characterized in that the solid agent is in the form of a stick or a sphere.
7. Gas well chemicals as claimed in claim 5 or 6, wherein the solid chemicals comprise any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor.
8. The gas well medicament injection method is characterized in that the added medicament is a solid medicament frozen into a solid state.
9. Gas well agent injection method according to claim 8, characterized in that the solid agent is made in the shape of a rod or sphere.
10. The gas well agent injection method as claimed in claim 8 or 9, wherein the solid agent is composed of any one of a foam scrubbing agent, a scale remover, a corrosion inhibitor and a scale inhibitor, or any two, any three or all of the foam scrubbing agent, the scale remover, the corrosion inhibitor and the scale inhibitor.
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