Sodium dodecyl sulfonate-bacitracin compound and compound oil displacement agent

A technology of sodium dodecyl sulfonate and compound oil displacement, applied in the directions of bacitracin, drilling composition, peptide, etc., can solve the problem of weakened microbial movement ability, inability to achieve microbial oil displacement, and reduced microbial oil displacement effect, etc. problems, to achieve the effect of expanding the sweep volume and dispersion efficiency, strong operability and applicability, and improving the efficiency of synergistic reactions
CN111763245BActive Publication Date: 2022-05-10PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2022-05-10

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Abstract

The invention provides a sodium dodecylsulfonate-bacitracin compound and a composite oil displacement agent. The chemical structural formula of the sodium dodecylsulfonate-bacitracin compound is as follows:. The invention provides a sodium dodecylsulfonate-bacitracin compound oil displacement agent containing a sodium dodecylsulfonate-bacitracin compound obtained by reacting sodium dodecylsulfonate and bacitracin. The composite oil displacement agent can be well compounded with oil production functional bacteria to form a microbial-chemical composite oil displacement agent. The microbial-chemical composite oil displacement agent not only has the effect of microbial flooding on crude oil degradation and viscosity reduction, but also has the emulsification and viscosity reduction effect of chemical flooding, and through the biological carrying method, the chemical oil displacement agent can expand the swept volume and dispersion efficiency in the oil layer, Effectively improve the synergistic reaction efficiency of microorganisms and chemical agents to achieve the goal of 1+1>2.
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Description

technical field

[0001] The invention belongs to the technical field of tertiary oil recovery, and relates to the preparation and application of a microbial-chemical composite oil displacement agent, in particular to a sodium dodecylsulfonate-bacitracin compound and the composite oil displacement agent. Background technique

[0002] With the rapid development of the national economy, the demand for oil continues to increase, and the contradiction between oil consumption and supply has become more prominent. In order to solve the above contradictions, in addition to increasing exploration efforts and continuing to search for oil resources, increase crude oil recovery in developed oil fields Rate is also one of the effective ways.

[0003] Microbial enhanced oil recovery (MEOR) is a technology that enhances oil recovery by utilizing the natural biochemical effects (biodegradation and metabolites) of living microbial cells. By injecting microorganisms with oil recovery functions...

Claims

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