Method for evaluating distribution rule of fracturing cracks of turbidite reservoir
An evaluation method and technology for reservoir layering, which are applied in earth-moving drilling, wellbore/well components, instruments, etc., can solve the problem of inability to simulate the distribution law of fracturing fractures, improve the fracturing stimulation effect and reduce fracturing. Cost, the effect of broad application prospects
Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
This patent mainly uses simulation to calculate the distribution law of induced stress difference to guide the optimal design of the cluster spacing of horizontal wells, and cannot simulate the distribution law of fracturing fractures.
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[0045] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0046] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations and / or combinations thereof.
[0047] The method for evaluating the distribution law of fracturing fractures in turbidite reservoirs of the present invention comprises the following step...
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The invention provides a turbidite reservoir fracturing fracture distribution rule evaluation method. The turbidite reservoir fracturing fracture distribution rule evaluation method comprises the steps that 1, reservoir parameters of a research area are collected; 2, fracturing construction parameters of the research area are collected; 3, a typical well model is established, and a three-dimensional finite element model is established according to well reservoir interlayer distribution and thickness; 4, stress is applied to the interior of the reservoir; 5, establishing a full three-dimensional numerical simulation model; and 6, inputting the parameters in the step 1 and the step 2 into the model established in the step 5, and predicting and evaluating the fracture distribution rule under the parameters. The turbidite reservoir fracturing crack distribution rule evaluation method can guide optimization of construction parameters such as fracturing construction scale, displacement and sand adding amount of similar oil reservoirs, reduces fracturing cost, improves fracturing transformation effect and has wide application prospects.
Description
technical field [0001] The invention relates to the technical field of oil and gas development, in particular to a method for evaluating the distribution law of fractures in turbidite reservoirs. Background technique [0002] China's turbidite reservoirs are rich in reserves, but the reservoirs have poor physical properties and low permeability. Generally, fracturing and fractures are required to be put into production in order to realize the beneficial development of turbidite reservoirs. Before fracturing construction, it is necessary to evaluate and predict the distribution law of fracturing fractures, guide fracturing design and construction, and provide technical guidance for efficient development and scientific decision-making of turbidite reservoirs. However, there are many factors affecting the fracture distribution, and the conventional method cannot fully and accurately evaluate it. Therefore, a method for evaluating the fracture distribution law of turbidite reser...
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Login to View More IPC IPC(8): G06F30/23G06F30/28G06F30/13G06T17/00E21B43/26G06F111/10G06F113/08G06F119/14
CPCG06F30/23G06F30/28G06F30/13G06T17/00E21B43/26G06F2111/10G06F2113/08G06F2119/14
Inventor 封旭冯春雷李资收汤志斌赵光宇袁浩仁王庆田田在福白雪静王亚楠
Owner CHINA PETROLEUM & CHEM CORP