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Horizontal well sand-water synergistic production and control and production and completion multifunctional experimental system and its experimental method

The technology of an experimental system and a central control system is applied in the fields of the coordinated production and control of sand and water in horizontal wells and the multi-functional experimental system for mining and completion, which can solve the problems of inability to simulate dynamic evolution, difficult heterogeneity, and single function, etc. To achieve the effect of reducing the amount of sand filling and structure volume, reducing the difficulty and complexity of experiments, and comprehensive functions

Active Publication Date: 2021-05-07
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

The experimental results do not match the reality;
[0006] (2) For the production section of a horizontal well with a long well section, the sand production and water production profiles have obvious heterogeneity, and it is difficult to simulate this heterogeneity with the previous experimental equipment;
The existing experimental system cannot simulate the dynamic evolution of this sand-water production profile;
[0008] (4) The existing experimental devices for sand control and water control in horizontal wells have single functions, and can only complete individual engineering phenomenon or operation process simulation experiments of local small-scale reservoirs, such as local water production, local sand production, sand control filling operation simulation, etc.
There is still no set that can complete sand production, water production, sand and water co-production, water control screen test, internal circulation gravel packing operation, external extrusion gravel packing operation, A comprehensive open experimental system platform integrating functions such as comprehensive flow simulation of water and sand control wells

Method used

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  • Horizontal well sand-water synergistic production and control and production and completion multifunctional experimental system and its experimental method
  • Horizontal well sand-water synergistic production and control and production and completion multifunctional experimental system and its experimental method
  • Horizontal well sand-water synergistic production and control and production and completion multifunctional experimental system and its experimental method

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Embodiment Construction

[0045] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily lim...

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Abstract

The invention discloses a horizontal well sand-water synergistic production and control and multi-functional experimental system for mining and well completion and an experimental method thereof. The experimental system includes a central control system, a liquid storage tank, a water pump, a reservoir simulation unit, a transparent Wellbore, sand-liquid separation sand collector and return pump, the experimental methods include horizontal well non-uniform water outlet profile and its dynamic evolution simulation experiment, horizontal well sand control and water control comprehensive flow simulation experiment of horizontal well, horizontal well sand-water synergistic production profile and Its dynamic evolution simulation experiment, horizontal well non-uniform sand production profile and its dynamic evolution simulation experiment, horizontal well circulating gravel filling sand control process simulation experiment and other experiments, through the invention to carry out a series of experiments, help to obtain more accurate mathematical simulation The calculation results have important scientific value and engineering guiding significance for improving the development effect of horizontal wells in oil and gas reservoirs, and also have important reference value for the development of horizontal wells in unconventional oil and gas and gas hydrate reservoirs.

Description

technical field [0001] The invention relates to the technical field of horizontal well sand control and water control and production and completion experiment simulation technology in the petroleum and natural gas exploitation industry, in particular to a horizontal well sand and water synergistic output and control and production and completion multifunctional experimental system and an experimental method. Background technique [0002] Horizontal wells have the advantages of long production intervals, large drainage areas, and high single-well production. They have long been an important technical means for oil and gas development. A large amount of water and severe sand production are the most difficult problems faced by horizontal well production technology. Once the horizontal well sees water, the entire wellbore will be flooded in a short period of time, causing the water production of the oil and gas well to rise rapidly, seriously reducing the production efficiency o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B43/08
CPCE21B43/086E21B47/00
Inventor 董长银周博刘亚宾王力智皇凡生尚校森于乐香宋洋
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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