Hydrogenation heat gas chemical yield increasing solution component applied to shallow well

Abstract

The invention belongs to the technical field of oil exploitation, and relates to a hydrogenation heat gas chemical yield increasing solution component capable of increasing permeability of a shallow well and a near wellbore region. The solution component comprises first solution and second solution, the mass ratio of the first solution to the second solution is 1:1, the first solution comprises 37-43% of ammonium nitrate NH4NO3, 23-26% of urea CO(NH2)2, 5-8% of decaborane B10H14, 1-2% of glucose C6H12O6, 0.5-1.5% of methenamine (CH2)6N4 and 19.5-33.5% of water. The second solution comprises 44-48% of sodium nitrate NaNO3, 15-20% of sodium nitrite NaNO2, 17-21% of sodium aluminum hydride NaAlH4 and 15-19% of tetrachloroethylene C2Cl4. By the aid of the solution component, porosity of an ore bed can be increased, accordingly, permeability is increased, and the yield can be increased by 2-10 times.

Description

technical field

[0001] The invention belongs to the technical field of petroleum exploitation, and in particular relates to a solution component for chemical stimulation of hydrogenated hot gas which can improve the permeability of shallow wells and near wells. Background technique

[0002] At present, the chemical method used in shallow well mining at home and abroad is generally fracturing and acidizing. Increase the seam fractures by pressing in acid to increase the permeability of the seam to increase production. At present, there are matrix acidizing technology (using acid liquid to dissolve formation rock pores and fracture blockages to expand oil and gas seepage channels), ordinary acidizing technology (using acid liquid to open and etch fractures to improve oil and gas seepage conditions), alternating phase Pre-fluid acid fracturing technology (use different fluid viscosities and reaction characteristics to obtain non-uniform etching cracks in the process of alterna...

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