Oil extraction microbial conenoses nutrient solution

A technology of origin microorganisms and nutrient solution, applied in the field of chemical agents, can solve the problems of complicated fermentation of bacterial liquid, development and evaluation of bacterial species, etc., and achieve the effects of long effective period, low cost, and improved recovery rate.

Inactive Publication Date: 2007-07-11
BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the disadvantages that strains need to be developed and evaluated, and the fermentation of the bacterial solution is complicated. Moreover, the injected microorganisms have the problem of adapting to the oil layer and competing with the original microorganisms in the oil layer (the original microorganisms in the oil layer).

Method used

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  • Oil extraction microbial conenoses nutrient solution

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, taking the daily water injection volume of 35000 kg as an example, 1157.28 kg of urea, NH 4 CL38.58 kg, amino acid 192.88 kg, NH 3 NO 3 38.58 kg, Na 2 HPO 4 115.73 kg, MgSO 4 ·7H 2 O 3.86 kg, FeSO 4 ·5H 2 O 19.29 kg, CaCl 2 19.29 kg, ZnCL 2 23.15 kg, molasses 1543.04 kg, rhamnose 38.58 kg and C 8～10 After 385.76 kg of alkyl glycosides were mixed in the batching tank, the injection pump injected the biological nutrient solution and compressed air into the formation by bypassing the water injection pipeline for pilot experiments. Each well was constructed for 5 rounds, and the construction continued for 2 years. The well was injected in 3 times, each time for 1 day, and the well was shut down for 1 day. Compared with the original method, the method increases the recovery factor by 10%, and the water content decreases by 2%.

Embodiment 2

[0020] Example 2, taking a daily water injection volume of 35,000 kg as an example, 760.79 kg of urea, 26.63 kg of NH4CL, 304.31 kg of amino acids, and 304.31 kg of NH 3 NO 3 57.06 kg, Na 2 HPO 4 190.20 kg, MgSO 4 ·7H 2 O 7.61 kg, FeSO 4 ·5H 2 O 30.43 kg, CaCl 2 38.04 kg, ZnCL 2 26.63 kg, molasses 760.79 kg, rhamnose 76.08 kg and C 8～10 After 760.79 kg of alkyl glycosides were mixed in the batching tank, the injection pump injected the biological nutrient solution and compressed air into the formation by bypassing the water injection pipeline for pilot experiments. Each well was constructed for 5 rounds, and the construction continued for 2 years. The well was injected in 3 times, each time for 1 day, and the well was shut down for 1 day. Compared with the original method, the method increases the recovery factor by 10%, and the water content decreases by 2%.

Embodiment 3

[0021] Embodiment 3, taking 35,000 kilograms of daily water injection as an example, 384.74 kilograms of urea, NH 4 CL19.24 kg, amino acid 384.74 kg, NH 3 NO 3 19.24 kg, Na 2 HPO 4 38.47 kg, MgSO 4 ·7H 2 O 19.24 kg, FeSO 4 ·5H 2 O 38.47 kg, CaCl 2 30.78 kg, ZnCL 2 38.47 kg, molasses 384.74 kg, rhamnose 192.37 kg and C 8～10 After 1923.71 kg of alkyl glycosides were mixed in the batching tank, the injection pump injected the biological nutrient solution and compressed air into the formation by bypassing the water injection pipeline for pilot experiments. Each well was constructed for 5 rounds, and the construction continued for 2 years. The well was injected in 3 times, each time for 1 day, and the well was shut down for 1 day. Compared with the original method, the method increases the recovery factor by 10%, and the water content decreases by 2%.

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Abstract

The invention relates to a micro-organism nutrient solution for petroleum production, which comprises the components of (by weight proportion) urea 1-3%, NH4Cl 0.05-0.1%, amino acid 0.5-1%, NH3NO3 0.05-0.25%, Na2HPO4 0.1-0.5%, MgSO4*7H2O 0.01-0.05%, FeSO4*5H2O 0.05-0.1%, CaCl2 0.05-0.1%, ZnCl2 0.05-0.1%, molasses 1-4%, isodulcitol 0.1-0.5%, C8-C10 alkyl glycoside 1-5%, and balancing water.

Description

Technical field: [0001] The invention relates to a chemical agent for oil recovery in the field of oil field exploitation, and belongs to an original microbial nutrient solution for oil recovery. Background technique: [0002] Microbial enhanced oil recovery technology is a rapidly developed oil recovery technology at home and abroad, and it is a high-tech biotechnology in the 21st century. Compared with other tertiary oil recovery technologies, microbial oil recovery technology has the characteristics of wide application range, simple process, good economic benefits, and no pollution, so it has been paid more and more attention by people. At present, the more common biological oil recovery technology is mainly to introduce exogenous microorganisms into the oil layer, and at the same time inject nutrient solution into the oil layer to make the microorganisms multiply in the oil layer, and use their metabolites gas, acid, surfactant, polymer, etc. to improve Crude Oil Recove...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/58C12N1/04
Inventor 赵力金艳方沈超王春华于洋陈韶军
Owner BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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