Physical simulation system and method for vertical well and horizontal well combined steam drive thickened oil recovery

A combined steam and physical simulation technology, applied in the fields of production fluids, wellbore/well components, earthwork drilling, etc., can solve the problems of expanding steam sweep volume, uneven production of horizontal well sections, and low single-layer control reserves, etc. Expand the swept volume, increase the swept area between wells, and reduce the effect of single well inrush

Active Publication Date: 2019-01-01
PETROCHINA CO LTD
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Problems solved by technology

Studies have shown that for thin-layer ultra-heavy oil reservoirs, when vertical well steam flooding is used for development, the single-layer controlled reserves are low; horizontal well steam flooding can significantly increase the oil drainage area, expand the swept volume of steam, and enhance the conductivity...

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  • Physical simulation system and method for vertical well and horizontal well combined steam drive thickened oil recovery
  • Physical simulation system and method for vertical well and horizontal well combined steam drive thickened oil recovery
  • Physical simulation system and method for vertical well and horizontal well combined steam drive thickened oil recovery

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[0034] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. For example, in the following description, forming the second component above the first component may include an embodiment in which the first component and the second component are formed in direct contact, and may also include an embodiment in which the first component and the second component are formed in indirect contact ( That is, the...

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Abstract

The embodiment of the invention provides a physical simulation system and method for vertical well and horizontal well combined steam drive thickened oil recovery. The physical simulation system comprises a reservoir physical model used for simulating thin-layer super thickened oil, a steam injection device, a gas foam injection device, a fluid collecting device and a data collecting device. The reservoir physical model is provided with a horizontal well production well and one or more vertical well injection wells. The steam injection device is used for injecting steam to the reservoir modelphysical model to conduct steam drive thickened oil recovery. The gas foam injection device is used for injecting gas foam into the reservoir physical model when the water content of fluid produced from the horizontal well production well reaches a preset value. The fluid collecting device is used for collecting fluid produced from the horizontal well production well. The data collecting device isused for collecting and recording experiment data. The experiment data comprises pressure, temperature and flow rates. Through the physical simulation system and method for vertical well and horizontal well combined steam drive thickened oil recovery, steam channeling in the vertical well and horizontal well combined steam drive process can be lowered or prevented.

Description

technical field [0001] The present application relates to the technical field of heavy oil production, in particular to a physical simulation system and method for heavy oil production by combined steam flooding of vertical wells and horizontal wells. Background technique [0002] Heavy oil is recognized as one of the most promising and realistic replacement resources in the 21st century. In addition to the characteristics of conventional crude oil, heavy oil is also an indispensable raw material for the production of key products in important fields such as national defense, aerospace, metallurgy, and pharmaceuticals. The role is irreplaceable. With the deepening of development, the development of heavy oil has shifted to the critical stage of the development of unrecoverable reserves. Thin-layer ultra-heavy oil reservoirs are the main part of unrecoverable heavy oil reserves, with a reserve scale of 700 million tons. Its main development technology "horizontal well huff a...

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Application Information

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IPC IPC(8): E21B49/00E21B43/24E21B43/16
CPCE21B43/168E21B43/24E21B49/00
Inventor 张运军张忠义周游郭二鹏沈德煌李秀峦王红庄蒋有伟王梦颖董志国罗建华连国锋
Owner PETROCHINA CO LTD
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