Completion method for intelligent production and dynamic monitoring of flow regulation and water control of oil and gas well
A technology of intelligent production and dynamic monitoring, applied in wellbore/well components, measurement, and production of fluids, etc., can solve the problems of short monitoring time of tracers, inability to meet the long-term monitoring requirements of oil and gas wells with flow regulation and water control, etc. The effect of dynamic monitoring time
Pending Publication Date: 2021-06-01
BEIJING CONOVA-TECH CO LTD
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Problems solved by technology
[0006] However, the traditional tracer monitoring time is short, generally 3-6 months, which cannot meet the long-term monitoring requirements of flow regulation and water control oil and gas wells
Method used
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Effect test
Embodiment 1
[0110] A foreign oil and gas well with flow control and water control was completed in 2018 with flow control and water screens, which were divided into 5 sections. During the process of flow control and water control screens, oil-soluble tracers and water-soluble tracers were placed in each section. Samples were collected from April 2019 to May 2019, and through laboratory analysis, the output properties and contribution rates of each section of fluid were obtained, as shown in the table below:
[0111]
[0112]
[0113] Any numerical value quoted herein includes all values from the lower value to the upper value in increments of one unit, and there is a separation of at least two units between any lower value and any higher value. Can. For example, if it is stated that a component quantity or process variable (such as temperature, pressure, time, etc.) has a value from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose Values such as 15 ...
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Abstract
The invention provides a completion method for intelligent production and dynamic monitoring of flow regulation and water control of an oil and gas well. The completion method comprises the following steps of selecting different quantum dot tracer agents according to the number of flow regulation and water control sub-sections of the oil and gas well; determining the dosage of the quantum dot tracer agent of each flow regulation and water control sub-section according to geological parameters of the oil and gas well; arranging the quantum dot tracer agent on a flow regulation and water control screen pipe; determining the use number and use parameters of the flow regulation and water control screen pipe in each reservoir section in a flow regulation and water control completion pipe string; performing well opening production after the flow regulation and water control completion pipe string is tripped into a designated position in a reservoir, and sampling at a wellhead every preset time interval after the oil and gas well enters a stable production period; and observing wellhead sampling, analyzing the liquid production capacity, the gas production capacity, the oil production capacity and the water production capacity in each flow regulation and water control sub-section of the flow regulation and water control completion pipe string according to the wellhead output condition, and determining the output condition of each flow regulation and water control sub-section.
Description
technical field [0001] The invention belongs to the field of oil and gas reservoir development, belongs to the technical scope of oil and gas well completion testing, and in particular relates to an oil and gas well intelligent production dynamic monitoring method for regulating flow, controlling water and completing a well. Background technique [0002] In homogeneous reservoirs, oil and gas wells are affected by the flow pressure drop during production, and the production and flow rates at different locations are quite different; The production burst effect is particularly obvious, and the resulting uneven profile is prone to coning once it encounters water or gas, resulting in the obstruction of fluid outflow in some liquid-producing sections, and the production of oil and gas wells will be greatly reduced. [0003] In the 1990s, flow regulation and water control technology was introduced into oil and gas field well completions. Oil and gas wells were completed in stages ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21B47/00E21B47/11E21B43/08
CPCE21B47/00E21B43/086
Inventor 陈彦洪
Owner BEIJING CONOVA-TECH CO LTD