48results about How to "Conducive to on-site promotion and application" patented technology

The invention belongs to the technical field of oil and gas field development and particularly relates to an oil well water plugging method adopting an emulsifying agent generated by activating oil reservoir microorganisms. The oil well water plugging method specifically comprises the following steps of screening of a test oil well, preliminary screening of an activating agent, determining of the activating agent, determining of the water plugging radius, determining of the injection rate of the activating agent and conducting of a field test and evaluating of a field test result. The oil well water plugging method adopting the emulsifying agent generated by activating the oil reservoir microorganisms has the characteristics of being simple in technology and high in pertinence and operability, and field application and popularization are facilitated; the validity period of the field test is long, the oil increasing effect is good, the input-output ratio is high, the validity period is longer than 12 months, the average daily oil increasing amount of a single well is larger than 5 t, and the input-output ratio is larger than 1:5. Thus, the oil well water plugging method adopting the emulsifying agent generated by activating the oil reservoir microorganisms can be widely applied to an oil well water plugging technology.

The invention belongs to the technical field of tertiary oil recovery, and particularly relates to an indigenous microbial oil recovery method for low-permeability oil reservoir. The indigenous microbial oil recovery method comprises the following steps that a test oil reservoir is screened; activators are screened, and the screened activators comprise the activator producing biopolymer functionalbacteria and the activator producing biosurfactant functional bacteria; the injecting mode of the activators are determined; the field test is conducted, and the field test comprises the injecting stage of the activator producing the biopolymer functional bacteria, the injecting stage of the activator producing the biosurfactant functional bacteria and the normal water injecting stage; and the field test effect is evaluated. According to the indigenous microbial oil recovery method for the low-permeability oil reservoir, the using amount of the injection agents can be effectively saved, and the field test effect can be greatly improved; and meanwhile, the indigenous microbial oil recovery method has the characteristics of simple process and high pertinence and maneuverability, thereof, the indigenous microbial oil recovery method can be widely applied to the field test of enhancing oil recovery of the low-permeability oil reservoir.

The invention belongs to the technical field of tertiary oil recovery, and particularly relates to a method for increasing the crude oil recovery rate through indigenous microbial drive. The method specifically comprises the following steps that oil reservoirs are screened; high-permeability oil layers, middle-permeability oil layers and low-permeability oil layers are determined; activating agent systems are determined; field injection processes are determined; and field tests are conducted. Different activating agent systems and field injection processes are selected according to the oil layers with different permeability of the target oil reservoirs, indigenous microorganisms of different oil layers are well activated, and therefore the field test effect of the indigenous microbial drive oil reservoirs can be effectively improved. Meanwhile, the method has the characteristics of being simple in process and high in pertinence and operability. Accordingly, the method can be widely applied to the technical field of microbial enhanced oil recovery.

The invention belongs to the technical field of tertiary oil recovery, and particularly relates to a technology for increasing yield of a low-permeability heavy oil well. The technology specifically comprises the following steps: screening the oil well; fracturing the oil well; treating single well huff and puff of the oil well; and treating a shaft of the oil well. The technology has the features of simplicity and high operability, and facilitates field popularization and application; and the technology is high in pertinency, a series of technology measures are selected in a targeted manner according to the features of the low-permeability heavy oil well, therefore, the yield of the oil well can be greatly improved, the period of validity of the oil well can be greatly prolonged, single well oil increment is greater than 1,000 t, the period of validity is longer than 3 years, and the input-output ratio is greater than 1:5. Therefore, the technology can be widely used in a field test for increasing the yield of the low-permeability heavy oil well.

The invention belongs to the technical field of tertiary oil recovery and particularly relates to an indigenous microbial enhanced oil recovery method. The method specifically comprises the following steps of screening of oil reservoirs, determination of high, medium and low-permeability oil layers, determination of activation agent systems, determination of field injection processes, and the field testing stage. According to the method, different activation agent systems and field injection processes are selected for the oil layers with different magnitudes of permeability in a target oil reservoir, so that indigenous microbes in the different oil layers are well activated; accordingly, the field testing effect of the indigenous microbe-flooding oil reservoirs can be improved effectively. Meanwhile, the method has the characteristics of being simple in process and high in pertinence and operability. Thus, the method can be widely applied to the technical field of microbial enhanced oil recovery.

The invention belongs to the technical field of tertiary oil recovery, and particularly relates to a thick oil well composite huff-puff method for increasing single well yield. The method specifically comprises the following steps: screening a test oil well, selecting a single well huff-puff technology, and carrying out test in the field. The thick oil well composite huff-puff method selects the single well huff-puff technology according to the characteristics of the thick oil well to reduce the oil-water mobility ratio well, thereby improving the single well yield of the thick oil well effectively; meanwhile, the thick oil well composite huff-puff method has the characteristics of being simple in technology, strong in operation capability and long in period of validity. Therefore, the method can be widely applied to the field test for increasing the single well yield of the thick oil well.