Preparation method of enzyme companied production-increasing agent and its application in oilfield

A technology of production increasing agent and enzyme chaperone, applied in the field of preparation of enzyme chaperone production increasing agent

Inactive Publication Date: 2006-07-19
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, amino acid mixed preparations, liquid crude oil stabilizer CH 2 SO 2 ·H 2 O and surface dehydrating agent C 4 h 10 The method of preparing enzyme chaperone production booster from NO and its application in oil fields have not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] 1. With liquid crude oil stabilizer CH 2 SO 2 ·H 2 O and surface dehydrating agent C 4 h 10 NO is used as a mixed preparation, and the two are fully mixed and prepared at a weight ratio of 2:1 under natural conditions, and prepared with an amino acid mixed preparation, mixed for 10 minutes to make the components soluble, and left for 20 minutes.

[0023] 2. Add 1% liquid solidifying agent sodium citrate by weight to the above mixed solution and keep it for 15 minutes to prepare the enzyme chaperone production increasing agent to achieve the curing effect, so as to ensure the long-term effect of the preparation, the stability of the concentration, and not easy to volatilize. Convenient storage and practical application requirements.

[0024] It has been developed and applied in Guangxi Tiandong Oil Production Plant, Nanhai Oilfield, Guangxi Baise Oilfield, and Zhongyuan Oilfield, and achieved good results.

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Abstract

The disclosed preparation method for enzyme chapeone yield-increasing agent comprises: (1) mixing naturally the CH2SO2.H2O as liquid raw-oil stabilizer and the C4H10NO as surface dehydrator by weight ratio as 2:1 to prepare with amino acid, blending for 8-10min till mutual dissolution and laying for 20min; (2) adding 1wt% neutral liquid curing agent into the former mixed liquid and holding for 12-15min. the product can increase raw oil yield and recovery factor.

Description

technical field [0001] The invention relates to a preparation method of an enzyme chaperone production increasing agent and its application in oil fields. Background technique [0002] Polymer flooding has been used successively by major oilfields in my country, and has achieved remarkable results in enhancing oil recovery. At present, the commonly used methods include partial water polyacrylamide, xanthan gum, alkali flooding, surfactant flooding, composite flooding, etc. With the application of various methods and the expansion of fields, the accompanying problems are constantly exposed. For example, polymer flooding has slow dissolution rate, shear degradation, thermal degradation, oxidative degradation and high salinity formation water, which will cause loss of polymer. In addition, in the process of polymer flooding, due to various factors, it has been found that polymers produce new plugs in formations near the wellbore and other problems. Therefore, the use of poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/60C12S13/00C12S99/00
Inventor 陈南春钟夏平
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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