CN115960594A - Preparation method of blocking remover for oil production gas - Google Patents
Preparation method of blocking remover for oil production gas Download PDFInfo
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- CN115960594A CN115960594A CN202211631918.7A CN202211631918A CN115960594A CN 115960594 A CN115960594 A CN 115960594A CN 202211631918 A CN202211631918 A CN 202211631918A CN 115960594 A CN115960594 A CN 115960594A
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Abstract
The invention discloses a preparation method of a blocking remover for oil extraction gas, which comprises the following steps: the method comprises the following steps: placing the paraffin fragments in an iron barrel to enable the paraffin fragments to form columnar paraffin which can be inserted into an oil pipe; digging a hole in the middle of the columnar paraffin, placing hydrochloric acid in the hole, and then placing disc-shaped paraffin into the hole; punching a plurality of grooves along the paraffin circumferential direction at the bottom of the inner wall of the hole, wherein the depth of the punched grooves is close to the outer wall of the paraffin; according to the invention, the unblocking liquid is innovatively placed into the paraffin column, so that the paraffin column slides in the pipeline, the unblocking liquid in the paraffin column is sent to the pipeline to block, then the unblocking liquid in the paraffin column slowly flows out of the paraffin column, so that the unblocking liquid unblocks the blocked position of the pipeline, and on one hand, a large amount of the unblocking liquid can be prevented from remaining on the pipe wall, and on the other hand, the unblocking liquid can accurately reach the blocked position.
Description
Technical Field
The invention relates to the field of blocking remover, in particular to a preparation method of a blocking remover for oil and gas production.
Background
At present, when an oil and gas pipeline is blocked, a common mode is to inject a blocking remover into the pipeline for blocking removal, for example, a patent with application number CN02146452.9 discloses an oilfield underground synthesized chlorine dioxide blocking remover and a blocking removal method thereof, and specifically discloses that a high-pressure injection pump (3) and an additive solution pump (7) are started, a solution in a main agent dissolving tank (1) and an additive in an additive tank (2) which are connected in parallel are rapidly injected into an oil (water) well (6) underground through an outlet pipeline (5) of the high-pressure injection pump (3) after being pressurized by an inlet pipeline (4) of the high-pressure injection pump according to a proportion, and the main agent and the additive react underground to generate the blocking remover.
However, such blocking removers have problems: when the blockage removing liquid flows in the pipeline, a large amount of blockage removing liquid is left on the pipe wall, so that little blockage removing liquid finally reaches the blockage part of the pipeline. Not only causes the waste of the blockage removing liquid, but also causes the blockage removing effect to be unsatisfactory.
Disclosure of Invention
The invention aims to provide a preparation method of a blocking remover for oil and gas production, so as to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of a blocking remover for oil recovery gas comprises the following steps:
the method comprises the following steps: placing the paraffin fragments in an iron barrel to enable the paraffin fragments to form columnar paraffin which can be inserted into an oil pipe; digging a hole in the middle of the columnar paraffin, placing hydrochloric acid in the hole, and then placing disc-shaped paraffin into the hole; punching a plurality of grooves along the paraffin circumferential direction at the bottom of the inner wall of the hole, wherein the depth of the punched grooves is close to the outer wall of the paraffin; placing ethylenediamine-pentaacetic acid amine above the disc paraffin in the hole, then placing a disc paraffin into the hole, and then placing hydroxyethylidene diphosphonic acid and surfactant;
step two: inserting a drill rod into the holes, and sequentially drilling holes in the center of each disc-shaped paraffin so that the ethylenediamine pentaacetate, the hydroxyethylidene diphosphonic acid and the surfactant on the upper layer flow into the hydrochloric acid at the bottom of the holes through the holes in the disc-shaped paraffin;
step three: when the ethylene triamine pentaacetic acid amine, the hydroxyl ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to corrode the groove, so that the groove is communicated; the method comprises the following steps that (1) columnar paraffin is plugged into an oil pipe, mixtures of ethylene-diene-triamine-pentaacetic acid amine, hydroxy-ethylidene diphosphonic acid, a surfactant and hydrochloric acid in holes of the columnar paraffin are left in the oil pipe outside the paraffin through grooves, when the paraffin meets the blockage of the oil pipe, the columnar paraffin stays at the blockage, and the mixtures of the ethylene-diene-triamine-pentaacetic acid amine, the hydroxy-ethylidene diphosphonic acid, the surfactant and the hydrochloric acid continuously flow out to unblock the blockage of the oil pipe; the ethylene triamine pentaacetic acid amine, the hydroxyl ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to generate heat to soften the columnar paraffin, so that the columnar paraffin can deform at the bending part of the oil pipe and pass through the bending part of the oil pipe.
Preferably, in the first step, the diameter of the iron bucket is the same as that of the oil pipe.
Preferably, in the first step, the outer wall of the disc-shaped paraffin is attached to the inner wall of the hole.
Preferably, in the second step, the drill rod is inserted into the hole, holes are sequentially drilled in the centers of the disc-shaped paraffins, and then clear water is poured into the hole.
Preferably, in the second step, a counterweight is placed above the uppermost disc-shaped paraffin, and the mixture of ethylene triamine pentaacetic acid amine, hydroxyethylidene diphosphonic acid, surfactant and hydrochloric acid is pressed down by the counterweight through the disc-shaped paraffin, so that the mixture of ethylene triamine pentaacetic acid amine, hydroxyethylidene diphosphonic acid, surfactant and hydrochloric acid is accelerated to flow out through the groove.
Preferably, the outer wall of the columnar paraffin is provided with a plurality of sliding grooves along the height direction of the columnar paraffin, so that the mixture of the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid, the surfactant and the hydrochloric acid flowing to the outer side of the columnar paraffin flows to a blocking position below the columnar paraffin through the sliding grooves.
Preferably, the weight ratio of the ethylene diamine triaminepentaacetic acid amine to the hydroxyethylidene diphosphonic acid to the surfactant to the hydrochloric acid is 1:1:1:5.
preferably, in the third step, before the columnar paraffin is inserted into the oil pipe, lubricating oil is smeared on the outer side of the columnar paraffin.
The beneficial effects of the invention are:
1. according to the invention, the blockage removing liquid is innovatively placed into the paraffin column, so that the paraffin column slides in the pipeline, the blockage removing liquid in the paraffin column is sent into the pipeline to be blocked, then the blockage removing liquid in the paraffin column slowly flows out of the paraffin column, and the blockage removing liquid is used for removing blockage of the blocked part of the pipeline, so that on one hand, a large amount of blockage removing liquid can be prevented from remaining on the pipe wall, and on the other hand, the blockage removing liquid can accurately reach the blocked part.
2. The ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to generate heat to soften the columnar paraffin, so that the columnar paraffin can deform at the bent part of the oil pipe and can smoothly pass through the bent part of the oil pipe.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example 1
A preparation method of a blocking remover for oil recovery gas comprises the following steps:
the method comprises the following steps: placing the paraffin fragments in an iron barrel to enable the paraffin fragments to form columnar paraffin which can be inserted into an oil pipe; digging a hole in the middle of the columnar paraffin, placing hydrochloric acid in the hole, and then placing disc-shaped paraffin in the hole; punching a plurality of grooves along the paraffin circumference at the bottom of the inner wall of the hole, wherein the depths of the punched grooves are close to the outer wall of the paraffin; placing ethylenediamine-pentaacetic acid amine above the disc paraffin in the hole, then placing a disc paraffin into the hole, and then placing hydroxyethylidene diphosphonic acid and surfactant;
the diameter of the iron barrel is the same as that of the oil pipe, the outer wall of the disc-shaped paraffin is attached to the inner wall of the hole, and the proportion of the ethylene triamine pentaacetic acid amine to the hydroxy ethylidene diphosphonic acid to the surfactant to the hydrochloric acid is 1:1:1:5.
step two: inserting a drill rod into the holes, and sequentially drilling holes in the center of each disc-shaped paraffin so that the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid and the surfactant on the upper layer flow into the hydrochloric acid at the bottom of the holes through the holes in the disc-shaped paraffin;
the drilling rod is inserted into the hole, holes are drilled in the centers of the disc-shaped paraffins in sequence, clean water is poured into the holes, then the balancing weight is placed above the uppermost disc-shaped paraffin, the balancing weight presses down the mixture of the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid, the surfactant and the hydrochloric acid through the disc-shaped paraffins, and the outflow of the mixture of the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid, the surfactant and the hydrochloric acid through the grooves is accelerated.
And a plurality of sliding grooves are formed in the outer wall of the columnar paraffin along the height direction of the columnar paraffin, so that the mixture of the ethylenediamine pentaacetic acid amine, the hydroxyethylidene diphosphonic acid, the surfactant and the hydrochloric acid flowing to the outer side of the columnar paraffin flows to a blockage position below the columnar paraffin through the sliding grooves.
Example 2, in the case where the other portions are the same as those of example 1, the present example is different from example 1 in that: also comprises
Step three: when the ethylene triamine pentaacetic acid amine, the hydroxyl ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to corrode the groove, so that the groove is communicated;
the method comprises the following steps of (1) filling columnar paraffin into an oil pipe, wherein a mixture of ethylenediamine pentaacetic acid amine, hydroxyethylidene diphosphonic acid, a surfactant and hydrochloric acid in a hole of the columnar paraffin is remained in the oil pipe outside the paraffin through a groove, when the paraffin meets the blockage of the oil pipe, the columnar paraffin stays at the blockage, and the mixture of the ethylenediamine pentaacetic acid amine, the hydroxyethylidene diphosphonic acid, the surfactant and the hydrochloric acid continuously flows out to unblock the blockage of the oil pipe;
the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to generate heat to soften the columnar paraffin, so that the columnar paraffin can deform at the bent part of the oil pipe and pass through the bent part of the oil pipe.
Wherein, before the columnar paraffin is plugged into the oil pipe, lubricating oil is smeared on the outer side of the columnar paraffin.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The preparation method of the blocking remover for the oil recovery gas is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: placing the paraffin fragments in an iron barrel to enable the paraffin fragments to form columnar paraffin which can be inserted into an oil pipe;
digging a hole in the middle of the columnar paraffin, placing hydrochloric acid in the hole, and then placing disc-shaped paraffin into the hole;
punching a plurality of grooves along the paraffin circumference at the bottom of the inner wall of the hole, wherein the depths of the punched grooves are close to the outer wall of the paraffin;
placing ethylenediamine pentaacetic acid amine above the disc-shaped paraffin in the hole, then placing a disc-shaped paraffin into the hole, and then placing hydroxyethylidene diphosphonic acid and a surfactant;
step two: inserting a drill rod into the holes, and sequentially drilling holes in the center of each disc-shaped paraffin so that the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid and the surfactant on the upper layer flow into the hydrochloric acid at the bottom of the holes through the holes in the disc-shaped paraffin;
step three: when the ethylene triamine pentaacetic acid amine, the hydroxyl ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to corrode the groove, so that the groove is communicated;
the method comprises the following steps of (1) filling columnar paraffin into an oil pipe, wherein a mixture of ethylenediamine pentaacetic acid amine, hydroxyethylidene diphosphonic acid, a surfactant and hydrochloric acid in a hole of the columnar paraffin is remained in the oil pipe outside the paraffin through a groove, when the paraffin meets the blockage of the oil pipe, the columnar paraffin stays at the blockage, and the mixture of the ethylenediamine pentaacetic acid amine, the hydroxyethylidene diphosphonic acid, the surfactant and the hydrochloric acid continuously flows out to unblock the blockage of the oil pipe;
the ethylene triamine pentaacetic acid amine, the hydroxyl ethylidene diphosphonic acid, the surfactant and the hydrochloric acid react to generate heat to soften the columnar paraffin, so that the columnar paraffin can deform at the bending part of the oil pipe and pass through the bending part of the oil pipe.
2. The method for preparing the blocking remover for oil recovery gas according to claim 1, characterized in that: in the first step, the diameter of the iron bucket is the same as that of the oil pipe.
3. The method for preparing the blocking remover for oil recovery gas according to claim 1, wherein the method comprises the following steps: in the first step, the outer wall of the disc-shaped paraffin is attached to the inner wall of the hole.
4. The method for preparing the blocking remover for oil recovery gas according to claim 1, characterized in that: and in the second step, the drill rod is inserted into the hole, holes are drilled in the center of each disc-shaped paraffin in sequence, and then clear water is poured into the hole.
5. The method for preparing the blocking remover for oil recovery gas according to claim 1, wherein the method comprises the following steps: in the second step, a balancing weight is placed above the uppermost disc-shaped paraffin, and the balancing weight presses the mixture of the ethylene triamine pentaacetic acid amine, the hydroxyethylidene diphosphonic acid, the surfactant and the hydrochloric acid through the disc-shaped paraffin to accelerate the mixture of the ethylene triamine pentaacetic acid amine, the hydroxyethylidene diphosphonic acid, the surfactant and the hydrochloric acid to flow out through the groove.
6. The method for preparing the blocking remover for oil recovery gas according to claim 1, characterized in that: and a plurality of sliding grooves are formed in the outer wall of the columnar paraffin along the height direction of the columnar paraffin, so that the mixture of the ethylene triamine pentaacetic acid amine, the hydroxy ethylidene diphosphonic acid, the surfactant and the hydrochloric acid flowing to the outer side of the columnar paraffin flows to a blocking position below the columnar paraffin through the sliding grooves.
7. The method for preparing the blocking remover for oil recovery gas according to claim 1, wherein the method comprises the following steps: the weight ratio of the ethylene diamine triaminepentaacetic acid amine to the hydroxyethylidene diphosphonic acid to the surfactant to the hydrochloric acid is 1:1:1:5.
8. the method for preparing the blocking remover for oil recovery gas according to claim 1, wherein the method comprises the following steps: and in the third step, before the columnar paraffin is plugged into the oil pipe, the outer side of the columnar paraffin is coated with lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211631918.7A CN115960594A (en) | 2022-12-19 | 2022-12-19 | Preparation method of blocking remover for oil production gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211631918.7A CN115960594A (en) | 2022-12-19 | 2022-12-19 | Preparation method of blocking remover for oil production gas |
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| CN115960594A true CN115960594A (en) | 2023-04-14 |
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| CN202211631918.7A Pending CN115960594A (en) | 2022-12-19 | 2022-12-19 | Preparation method of blocking remover for oil production gas |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2921271Y (en) * | 2006-03-30 | 2007-07-11 | 孙广森 | Oil well active metal paraffin removal deplugging bar |
| CN104293333A (en) * | 2014-09-23 | 2015-01-21 | 兰州熙瑞化工科技有限公司 | Neutral blocking remover composition for oilfield oil extraction and preparation method thereof |
| CN114479804A (en) * | 2020-11-11 | 2022-05-13 | 中国石油天然气股份有限公司 | Blocking remover and preparation method and application thereof |
| CN114989797A (en) * | 2022-07-11 | 2022-09-02 | 西安石油大学 | Composite paraffin and scale removal agent for oil well and immobile pipe column blockage removal process thereof |
-
2022
- 2022-12-19 CN CN202211631918.7A patent/CN115960594A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2921271Y (en) * | 2006-03-30 | 2007-07-11 | 孙广森 | Oil well active metal paraffin removal deplugging bar |
| CN104293333A (en) * | 2014-09-23 | 2015-01-21 | 兰州熙瑞化工科技有限公司 | Neutral blocking remover composition for oilfield oil extraction and preparation method thereof |
| CN114479804A (en) * | 2020-11-11 | 2022-05-13 | 中国石油天然气股份有限公司 | Blocking remover and preparation method and application thereof |
| CN114989797A (en) * | 2022-07-11 | 2022-09-02 | 西安石油大学 | Composite paraffin and scale removal agent for oil well and immobile pipe column blockage removal process thereof |
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