CN101580704A - Washing agent and washing method for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields - Google Patents
Washing agent and washing method for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields Download PDFInfo
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- CN101580704A CN101580704A CNA2009100225485A CN200910022548A CN101580704A CN 101580704 A CN101580704 A CN 101580704A CN A2009100225485 A CNA2009100225485 A CN A2009100225485A CN 200910022548 A CN200910022548 A CN 200910022548A CN 101580704 A CN101580704 A CN 101580704A
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Abstract
The invention discloses a washing agent for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields, which comprises heat generation powder and a detergent in the ratio of 1: 25-50 by mass percentage, wherein the heat generation powder comprises the following components by mass percentage: 80 to 90 percent of spherical aluminum powder, 8 to 15 percent of powdery gluconic acid sodium salt, and 2 to 5 percent of powdery hydroxyldodecane; and the detergent comprises the following components by the mass percentage: 85 to 90 percent of sodium hypochlorite solution, and 10 to 15 percent of chlor-alkali solution. The invention also discloses a washing method, which comprises the steps: weighing the spherical aluminum powder, the gluconic acid sodium salt and the hydroxyldodecane, and obtaining the heat generation powder by mixing; weighing a certain amount of the heat generation powder, using crude oil or water to stir the heat generation powder, injecting the mixture into an oil well from a hohlraum of an oil well pipeline, and then using the water to wash; weighing the sodium hypochlorite solution and the chlor-alkali solution, and obtaining the detergent after the mixing; and weighing the detergent according to the mass ratio of the heat generation powder to the detergent being 1: 25-50, and injecting the detergent into the oil well from the hohlraum of the oil well pipeline. The washing agent has low cost and less pollution.
Description
Technical field
The invention belongs to chemical material technical field, relate to a kind of clean-out system, be specifically related to a kind of clean-out system that is used for oilfield, the de-plugging of pumping pipelines wax removal, the invention still further relates to and utilize this clean-out system to clean the method for oil well and pipeline.
Background technology
Oil producing region oil well wall wax deposition is stopped up and is being perplexed the ordinary production of recovering the oil always for a long time; the low temperature season in the middle of 1 year particularly; the wax deposition problem is particularly outstanding; though each oil district all once adopted traditional artificial wax removal; measures such as machinery dewaxing and chemicals wax removal; (oil producing region mostly is the loess plateau but these traditional methods are owing to be subjected to the oil producing region geographical position; ravines and guillies criss-cross; ground height above sea level is all about 1200m～1700m; traffic is very unfavorable; the area belongs to typical landlocked sex climate simultaneously; long-term dry and rainless; the surface pond lacks); (oil reservoir is big to changing in length and breadth for the oil field geologic feature; property is poor in flakes; area is few; investment risk is big) etc. the influence of factor; its cleaning performance is all unsatisfactory; it mainly shows as: traditional operational method activity duration is long, and it is many to drop into machinery, and labour intensity is big; need to shut down operation and influence output; use cost height not only, some chemical reagent composition is also corroded pit shaft and is influenced the quality of crude oil, even pollutes the well site environment.
Summary of the invention
The purpose of this invention is to provide a kind of clean-out system that is used for oilfield, the de-plugging of pumping pipelines wax removal, solved the method cost height of traditional wash oil well tubular wall, heavy-polluted problem.
Another object of the present invention provides the method for utilizing this clean-out system to clean oil well and pipeline.
The technical solution adopted in the present invention is, a kind of oilfield that is used for, the clean-out system of pumping pipelines wax removal de-plugging, by mass percentage, it consists of: give birth to hot powder: detergent=1: 25～50, give birth to hot powder according to mass percent, it consists of: ball aluminum powder: 80%～90%, powdery Sunmorl N 60S: 8%～15%, powdery dodecane hydroxyl: 2%～5%, ball aluminum powder, the mass percent sum of powdery Sunmorl N 60S and powdery dodecane hydroxyl is 100%, detergent is according to mass percent, it consists of: chloride is 10%～14% chlorine bleach liquor: 85%～90%, concentration is 96%～100% ion alkaline solution: 10%～15%, and the mass percent sum of chlorine bleach liquor and ion alkaline solution is 100%.
Feature of the present invention is that also the granularity of ball aluminum powder wherein is 28.76 μ m.
Another technical scheme of the present invention is, utilizes this clean-out system to clean the method for oil well and pipeline, carry out according to the following steps,
Step 1: according to mass percent 80%～90%: take by weighing ball aluminum powder, powdery Sunmorl N 60S and powdery dodecane hydroxyl at 8%～15%: 2%～5%, mixes to obtain giving birth to hot powder;
Step 2: take by weighing a certain amount of hot powder of life that the step obtains of going up, will give birth to hot powder and stir into pasty state, be injected in the oil well by the annular space of oil country tubular good with crude oil or water;
Step 3: water purge oil well conduit;
Step 4: according to mass percent 85%～90%: 10%～15% takes by weighing chloride is that 10%～14% chlorine bleach liquor and concentration are 96%～100% ion alkaline solution, mixes and obtain detergent;
Step 5: give birth to hot powder according to mass percent: detergent=1: 25～50 take by weighing detergent, are injected in the oil well by the annular space of oil country tubular good, and cleaning finishes.
The beneficial effect of clean-out system of the present invention is,
(1) well washing effect is remarkable, makes crude oil thinning, and viscosity reduces, and water content reduces, and under the certain condition of stratum fluid supply capacity, has improved oil output per well relatively;
(2) can not cause damage, not corrode sleeve pipe, oil pipe, can not pollute surrounding environment to the stratum;
(3) can significantly reduce the removing paraffin and washing well cost, not need to shut down stopping production, time saving and energy saving;
(4) prolong the wax deposition cycle, enhance productivity.
Embodiment
The present invention is described in detail below in conjunction with embodiment.
Clean-out system of the present invention, form by giving birth to hot powder and detergent, by mass percentage, it consists of: give birth to hot powder: detergent=1: 25～50, give birth to hot powder according to mass percent, it consists of: granularity is the ball aluminum powder of 28.76 μ m: 80%～90%, powdery Sunmorl N 60S: 8%～15%, powdery dodecane hydroxyl: 2%～5%, ball aluminum powder, the mass percent sum of powdery Sunmorl N 60S and powdery dodecane hydroxyl is 100%, detergent is according to mass percent, it consists of: chloride is 10%～14% chlorine bleach liquor: 85%～90%, concentration is 96%～100% ion alkaline solution: 10%～15%, and the mass percent sum of chlorine bleach liquor and ion alkaline solution is 100%.
Add clean-out system according to the pit shaft liquid measure, according to volume ratio, the pit shaft liquid measure: clean-out system is 5～10: 1.
Utilize this clean-out system to clean the method for oil well and pipeline, specifically carry out according to following steps:
Step 1: according to mass percent 80%～90%: take by weighing ball aluminum powder, powdery Sunmorl N 60S and powdery dodecane hydroxyl that granularity be 28.76 μ ms at 8%～15%: 2%～5%, mixes to obtain giving birth to hot powder;
Step 2: take by weighing a certain amount of hot powder of life that step obtains of going up, will give birth to hot powder and stir into pasty state, be injected in the oil well by the annular space of oil country tubular good with a small amount of crude oil or water;
Step 3: with 30～50 premium on currency purge oil well conduits;
Step 4: according to mass percent 85%～90%: 10%～15% takes by weighing chloride is that 10%～14% chlorine bleach liquor and concentration are 96%～100% ion alkaline solution, mixes and obtain detergent;
Step 5: give birth to hot powder according to mass percent: detergent=1: 25～50 take by weighing detergent, are injected in the oil well by the annular space of oil country tubular good, and cleaning finishes.
Embodiment 1
According to mass percent is to take by weighing ball aluminum powder, powdery Sunmorl N 60S and powdery dodecane hydroxyl that granularity be 28.76 μ ms at 85%: 10%: 5%, mixes to obtain giving birth to hot powder; Take by weighing a certain amount of hot powder of life that the step obtains of going up, will give birth to hot powder and stir into pasty state, be injected in the oil well by the annular space of oil country tubular good with a small amount of crude oil; With 30～50 premium on currency purge oil well conduits; Taking by weighing chloride at 85%: 15% according to mass percent is that 10% chlorine bleach liquor and concentration are 96% ion alkaline solution, mixes and obtain detergent; Give birth to hot powder according to mass percent: detergent=1: 25 takes by weighing detergent, is injected in the oil well by the annular space of oil country tubular good.
Embodiment 2
According to mass percent is to take by weighing ball aluminum powder, powdery Sunmorl N 60S and powdery dodecane hydroxyl that granularity be 28.76 μ ms at 90%: 8%: 2%, mixes to obtain giving birth to hot powder; Take by weighing a certain amount of hot powder of life that the step obtains of going up, will give birth to hot powder and stir into pasty state, be injected in the oil well by the annular space of oil country tubular good with less water; With 30～50 premium on currency purge oil well conduits; Taking by weighing chloride at 90%: 10% according to mass percent is that 14% chlorine bleach liquor and concentration are 100% ion alkaline solution, mixes and obtain detergent; Give birth to hot powder according to mass percent: detergent=1: 50 takes by weighing detergent, is injected in the oil well by the annular space of oil country tubular good.
Embodiment 3
According to mass percent is to take by weighing ball aluminum powder, powdery Sunmorl N 60S and powdery dodecane hydroxyl that granularity be 28.76 μ ms at 80%: 15%: 5%, mixes to obtain giving birth to hot powder; Take by weighing a certain amount of hot powder of life that the step obtains of going up, will give birth to hot powder and stir into pasty state, be injected in the oil well by the annular space of oil country tubular good with less water; With 30～50 premium on currency purge oil well conduits; Taking by weighing chloride at 88%: 12% according to mass percent is that 13% chlorine bleach liquor and concentration are 99% ion alkaline solution, mixes and obtain detergent; Give birth to hot powder according to mass percent: detergent=1: 35 takes by weighing detergent, is injected in the oil well by the annular space of well conduit.
Table 1 is to adopt clean-out system of the present invention that oil country tubular good is cleaned, oil well situation before cleaning and the oil well situation contrast after the cleaning:
Oil well situation before table 1 cleans and the oil well situation contrast table after the cleaning
As can be seen from Table 1,
(1) the wax deposition cycle after the cleaning obviously prolonged, and the average wax deposition cycle after the cleaning is 55.6 days, than the 25 days average wax deposition cycles prolongation before cleaning 30.6 days;
(2) the production fluid amount after the cleaning increases, and average individual well monthly output increases former oil mass at 1.6T～2.1T;
(3) average moisture content descends 9%.
Claims (3)
1. one kind is used for oilfield, the clean-out system of pumping pipelines wax removal de-plugging, it is characterized in that, by mass percentage, it consists of: give birth to hot powder: detergent=1: 25～50, the hot powder of described life is according to mass percent, it consists of: ball aluminum powder: 80%～90%, powdery Sunmorl N 60S: 8%～15%, powdery dodecane hydroxyl: 2%～5%, ball aluminum powder, the mass percent sum of powdery Sunmorl N 60S and powdery dodecane hydroxyl is 100%, described detergent is according to mass percent, it consists of: chloride is 10%～14% chlorine bleach liquor: 85%～90%, concentration is 96%～100% ion alkaline solution: 10%～15%, and the mass percent sum of chlorine bleach liquor and ion alkaline solution is 100%.
2. the clean-out system that is used for pumping pipelines according to claim 1 is characterized in that, the granularity of described ball aluminum powder is 28.76 μ m.
3. a method of utilizing claim 1 or 2 described clean-out systems cleaning oil wells and pipeline is characterized in that this method is carried out according to the following steps,
Step 1: according to mass percent 80%～90%: take by weighing ball aluminum powder, powdery Sunmorl N 60S and powdery dodecane hydroxyl at 8%～15%: 2%～5%, mixes to obtain giving birth to hot powder;
Step 2: take by weighing a certain amount of hot powder of life that the step obtains of going up, will give birth to hot powder and stir into pasty state, be injected in the oil well by the annular space of oil country tubular good with crude oil or water;
Step 3: water purge oil well conduit;
Step 4: according to mass percent 85%～90%: 10%～15% takes by weighing chloride is that 10%～14% chlorine bleach liquor and concentration are 96%～100% ion alkaline solution, mixes and obtain detergent;
Step 5: give birth to hot powder according to mass percent: detergent=1: 25～50 take by weighing detergent, are injected in the oil well by the annular space of oil country tubular good, and cleaning finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100225485A CN101580704A (en) | 2009-05-15 | 2009-05-15 | Washing agent and washing method for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100225485A CN101580704A (en) | 2009-05-15 | 2009-05-15 | Washing agent and washing method for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields |
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| CN101580704A true CN101580704A (en) | 2009-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073233A (en) * | 2014-07-23 | 2014-10-01 | 中国石油大学(华东) | Self-heat generation chemical temperature rise agent for alkaline thickened oil reservoir and use method |
| CN109957383A (en) * | 2019-04-16 | 2019-07-02 | 济南大学 | A kind of preparation method for cleaning neutral spontaneous heating de-plugging scale remover for oil pipeline |
| CN115449358A (en) * | 2022-08-19 | 2022-12-09 | 延安大学 | Chemical-thermal coupling wax removal and prevention ball and detection method thereof |
-
2009
- 2009-05-15 CN CNA2009100225485A patent/CN101580704A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073233A (en) * | 2014-07-23 | 2014-10-01 | 中国石油大学(华东) | Self-heat generation chemical temperature rise agent for alkaline thickened oil reservoir and use method |
| CN109957383A (en) * | 2019-04-16 | 2019-07-02 | 济南大学 | A kind of preparation method for cleaning neutral spontaneous heating de-plugging scale remover for oil pipeline |
| CN115449358A (en) * | 2022-08-19 | 2022-12-09 | 延安大学 | Chemical-thermal coupling wax removal and prevention ball and detection method thereof |
| CN115449358B (en) * | 2022-08-19 | 2023-11-14 | 延安大学 | Chemical-thermal coupling paraffin removal and prevention ball and detection method thereof |
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Inventor after: Yang Qiang Inventor after: Guo Yunzhong Inventor before: Yang Qiang |
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Open date: 20091118 |