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Horizontal well biology yield increasing solution

A technology of stimulation fluid and horizontal well, which is applied in drilling compositions, chemical instruments and methods, etc., can solve the problems of incomplete elimination of polymer mud cake clogging, inability to enter the production process, cumbersome construction operation procedures, etc. Water lock damage, good economic benefits, and the effect of improving production efficiency

Active Publication Date: 2010-12-15
SUNCOO PETROLEUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main contradictions are: severe acidification corrosion, incomplete elimination of polymer mud cake blockage, cumbersome construction procedures, complete reverse discharge, inability to enter the production process, and unsatisfactory results

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A biostimulation fluid for horizontal wells, its raw material components include: 5 parts of biological enzymes, 10 parts of biological acids and 85 parts of water, the biological enzymes are complexes of preparations containing biological enzyme components Its raw material components include: 10 parts of protease, 35 parts of hemicellulase, 15 parts of trehalolipid, 25 parts of BOVEE biologically active substances and 15 parts of NOWEE complex enzyme according to the total weight ratio of biological enzymes. The biological acid is fruit acid.

[0033] The preparation method of this example is as follows: 5 parts of biological enzyme, 10 parts of biological acid and 85 parts of water are stirred at a temperature of 20 degrees for 30 minutes according to the weight ratio. 10 parts of protease, 35 parts of hemicellulase, 15 parts of trehalose, 25 parts of BOVEE biologically active substances and 15 parts of NOWEE compound enzyme were prepared by fully stirring for 30 minu...

Embodiment 2

[0036] A horizontal well biostimulation fluid, its raw material components include by weight: 10 parts of biological enzymes, 15 parts of biological acids and 75 parts of water, the biological enzymes are complexes of preparations containing biological enzyme components Its raw material components include: 20 parts of protease, 15 parts of hemicellulase, 5 parts of trehalolipid, 35 parts of BOVEE biologically active substances and 15 parts of NOWEE compound enzyme according to the total weight ratio of biological enzymes. The biological acid is fruit acid.

[0037] The preparation method of this example is as follows: 10 parts of biological enzyme, 15 parts of biological acid and 75 parts of water are stirred at a temperature of 25 degrees for 25 minutes according to the weight ratio. 20 parts of protease, 15 parts of hemicellulase, 5 parts of trehalose, 35 parts of BOVEE biologically active substances and 15 parts of NOWEE compound enzyme were prepared by fully stirring for 2...

Embodiment 3

[0040] A biostimulation fluid for horizontal wells, its raw material components include by weight: 2 parts of biological enzymes, 5 parts of biological acids and 93 parts of water, and the biological enzymes are complexes of preparations containing biological enzyme components Its raw material components include: 30 parts of protease, 20 parts of hemicellulase, 10 parts of trehalolipid, 15 parts of BOVEE biologically active substances and 30 parts of NOWEE complex enzyme according to the total weight ratio of biological enzymes. The biological acid is fruit acid.

[0041] The preparation method of this example is: mix 2 parts of biological enzyme, 5 parts of biological acid and 93 parts of water at a temperature of 30 degrees by weight for 15 minutes. 30 parts of protease, 20 parts of hemicellulase, 10 parts of trehalose, 15 parts of BOVEE biologically active substances and 30 parts of NOWEE compound enzyme were prepared by fully stirring for 15 minutes at a temperature of 30 ...

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Abstract

The invention discloses horizontal well biology yield increasing solution. The solution comprises the following raw material components in part by weight: 2 to 10 parts of biological enzyme, 5 to 15 parts of biological acid and 75 to 93 parts of water, wherein the biological enzyme is a compound of preparations containing biological enzyme components and comprises the following raw material components in part by weight: 10 to 30 parts of protease, 15 to 35 parts of hemicellulase, 5 to 15 parts of trehalose, 15 to 35 parts of BOVEE bioactive substance and 10 to 30 parts of NOWEE complex enzyme; and the biological acid is acid refined by using a biological process. The solution can eliminate blockage of organic polymers and organic oil dirt, eliminate the harm of sensitive factors, and reasonably improve the matrix permeability on the premise that oil deposit is not harmed.

Description

technical field [0001] The invention relates to a technology for increasing production of horizontal wells in oilfield development, in particular to a biological stimulation fluid for horizontal wells. Background technique [0002] Due to the improvement of economic and technical development level, it is of great significance to realize high production with fewer wells, promote high-speed and high-efficiency development of oilfields, and put horizontal wells into production. A prominent problem is that after the wells are put into production, the production often fails to meet the expected requirements, and many wells often adopt secondary fracturing for sand control, which makes the original goal of economically developing oil fields too far away. [0003] The main reasons restricting the production of water wells and not meeting the requirements are: [0004] The longer the drilling fluid soaks in the reservoir, the more damage it will do to the reservoir. Wells complete...

Claims

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Application Information

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IPC IPC(8): C09K8/524C09K8/84
Inventor 陈军斌屈展王俊奇盖海防
Owner SUNCOO PETROLEUM TECH
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