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Hydrogenating hot gas chemical solution component and application thereof to viscous oil recovery

A chemical solution and hot gas technology, applied in chemical instruments and methods, mining fluids, earth drilling and mining, etc., can solve problems such as high recovery rate, difficult to control underground combustion, and difficult implementation process

Active Publication Date: 2013-02-13
吉林贯通能源科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage is that the recovery rate is high, and the disadvantage is that the implementation process is difficult, it is difficult to control underground combustion, and the cost is expensive

Method used

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  • Hydrogenating hot gas chemical solution component and application thereof to viscous oil recovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1: Hydrogenation hot gas chemical stimulation test of No. 1 oil well in Jilin Oilfield

[0043] Geological conditions and related parameters of No. 1 oil well: the lithology of the reservoir is mainly siltstone, followed by fine sandstone; the average porosity is 18.3%, and the permeability is 56.2×10 -3 μm 2 ;Casing diameter The artificial well bottom is 969.72m; the perforation range is 894-923m; the daily fluid production before the stimulation operation is 1.0t, of which the daily oil production is 0.4t; the viscosity of crude oil (50℃) is 382.6mPa.s; the volume of the reaction zone is 914.4L based on the above data . Prepare No. 1 solution 520kg, No. 2 solution 520kg.

[0044] Solution No. 1 contains: Ammonium Nitrate NH 4 NO 3 , oxamide C 2 o 2 (NH 2 ) 2 , sucrose C 12 h 22 o 11 , potassium chloride KCl, water H 2O, the respective mass percentages: 55%, 23%, 0.5%, 0.01%, 21.49%. The masses of each component are: ammonium nitrate 286kg, oxami...

Embodiment 2

[0048] Example 2: Hydrogenation hot gas chemical stimulation test of No. 2 oil well in Jilin Oilfield

[0049] Geological conditions and related parameters of No. 2 oil well: the lithology of the reservoir is mainly siltstone, followed by fine sandstone; the average porosity is 18.0%, and the permeability is 55.7×10 -3 μm 2 ;Casing diameter The artificial well bottom is 1005.25m; the perforation range is 940.6-943.8m; the daily fluid production before the stimulation operation is 2.5t, of which the daily oil production is 1.0t; the crude oil viscosity (50°C) is 347.8mPa.s; the volume of the reaction zone is 780.7 from the above data Lift. Prepare No. 1 solution 390kg, No. 2 solution 390kg.

[0050] Solution No. 1 contains: Ammonium Nitrate NH 4 NO 3 , oxamide C 2 o 2 (NH 2 ) 2 , sucrose C 12 h 22 o 11 , potassium chloride KCl, water H 2 O, the respective mass percentages: 59%, 16%, 1%, 0.03%, 23.97%. The masses of each component are: ammonium nitrate 230.1kg, ox...

Embodiment 3

[0054] Example 3: Hydrogenation hot gas chemical stimulation test of No. 3 oil well in Jilin Oilfield

[0055] Geological conditions and related parameters of No. 3 oil well: the lithology of the reservoir is mainly siltstone, followed by fine sandstone; the average porosity is 17.2%, and the permeability is 53.6×10 -3 μm 2 ;Casing diameter The artificial well bottom is 1077.6m; the perforation range is 987.2-992.0m; the daily fluid production before the stimulation operation is 1.8t, of which the daily oil production is 0.7t; the crude oil viscosity (50°C) is 413.5mPa.s; the volume of the reaction zone can be obtained from the above data. 1091.7 liters. Prepare No. 1 solution 650kg, No. 2 solution 650kg.

[0056] Solution No. 1 contains: Ammonium Nitrate NH 4 NO 3 , oxamide C 2 o 2 (NH 2 ) 2 , sucrose C 12 h 22 o 11 , potassium chloride KCl, water H 2 O, the respective mass percentages: 65%, 15%, 1.5%, 0.06%, 18.44%. The masses of each component are: 422.5kg of...

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Abstract

The invention belongs to the technical field of viscous oil recover, and in particular relates to a hydrogenating hot gas chemical solution component and application thereof to viscous oil recovery. The hydrogenating hot gas chemical solution component consists of a 1# solution and a 2# solution, wherein the mass ratio of the 1# solution to the 2# solution is 1:1; the 1# solution consists of 55.0 to 65.0 percent of ammonium nitrate NH4NO3, 15.0 to 23.0 percent of oxamide C2O2(NH2)2, 0.5 to 1.5 percent of cane sugar C12H22O11, 0.01 to 0.06 percent of potassium chloride KCl and 18.0 to 25.0 percent of water; and the 2# solution consists of 22.0 to 32.0 percent of sodium borohydride NaBH4, 15.0 to 28.0 percent of lithium aluminum hydride LiAlH4 and 40.0 to 54.0 percent of tetrachloroethylene C2Cl4. The hydrogenating hot gas chemical solution component integrates steam huff and puff, steam flooding and alkaline treatment, effectively reduces the viscosity of crude oil, removes blockage of the near-wellbore area and increases the productivity of single well.

Description

technical field [0001] The invention belongs to the technical field of heavy oil exploitation, and in particular relates to a hydrogenation hot gas chemical solution component and the application of the solution component in the heavy oil recovery of oil and gas wells. The solution component can reduce the viscosity of heavy oil and improve the single well production capacity. Background technique [0002] At present, thermal recovery is generally adopted in the exploitation of heavy oil at home and abroad, and the more commonly used thermal recovery technologies mainly include steam huff and puff, steam flooding, and combustion of oil layers. [0003] The steam huff and puff method is to inject a certain amount of hot steam into the oil well first, then close the well for a period of time, and then open the well for production after the thermal energy of the steam diffuses to the oil layer. Although steam huff and puff mining requires less initial investment and quick prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/58E21B43/22
Inventor 韩炜周亮西莫年科·阿列克谢谢尔比娜·卡琳娜斯托罗吉·叶夫根尼
Owner 吉林贯通能源科技有限责任公司