A Calculation Method of Reservoir Parameters in Fracture-vuggy Reservoirs
A technology of reservoir parameters and calculation methods, applied in calculation, earthwork drilling and production, data processing applications, etc., can solve problems such as low production efficiency, difficult to determine reservoir parameters, and uncertain production status of oil wells, etc., to achieve enhanced oil recovery Effect
Active Publication Date: 2022-02-25
SOUTHWEST PETROLEUM UNIV
View PDF16 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The embodiment of the present invention provides a method for calculating reservoir parameters of fractured-cavity reservoirs, which can solve the problems in the prior art that the reservoir parameters are difficult to determine, resulting in the inability to determine the production status of each oil well and low production efficiency
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0050] Below will be combined with the appended in the embodiment of the present invention figure 1 to attach Figure 9, clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0051] The invention provides a method for calculating reservoir parameters of a fractured-vuggy reservoir:
[0052] Taking the high-pressure water injection wells in Block A of fractured-vuggy reservoirs in Tahe Oilfield as an example, the development of Tahe fractured-vuggy carbonate reservoirs is controlled by complex factors, strong heterogeneity, and various types of reservoir rocks. There are various reservoir types such as caves, ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention relates to the technical field of petroleum exploitation, in particular to a method for calculating reservoir parameters of fractured-vuggy reservoirs. The slope k of the curve and the crude oil compressibility C 0 , to calculate the reserves of the far well; calculate the energy of the far well according to the recovery curve of the liquid level using the linear extrapolation method; select two water injection nodes on the water injection indicator curve and two production nodes on the energy indicator curve, according to one of the water injection nodes and one production node The data of the node calculates the start-up pressure difference of the fracture near the well; the start-up pressure difference of the fracture far from the well is calculated according to the start-up pressure difference of the fracture near the well, the data of another water injection node and the data of another production node. In order to obtain the relationship between the reservoir parameters and the amount of oil replaced by high-pressure water injection in actual production, the well selection conditions can be determined and the production can be increased.
Description
technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to a method for calculating reservoir parameters of fracture-cavity reservoirs. Background technique [0002] Reservoir bodies are mainly composed of structural fractures produced by structural deformation and dissolved pores, caves, and dissolved pores formed by karstification. Among them, large caves are the most important storage space, and fractures are the connecting channels of different cave systems. The fracture itself is also a storage space. [0003] Reservoir space is divided into fracture-cavity type, single-cavity type and double-cavity type. Among them, fracture-cavity reservoirs have complex development control factors, strong heterogeneity, and various types of reservoir rocks. The entire reservoir storage unit There are various types of reservoirs such as caves, holes and fractures inside, and the reservoir parameters are difficult to determine, resu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B41/00E21B43/20E21B43/26E21B47/00E21B47/06G06F30/20G06Q50/02
CPCE21B43/26E21B43/20E21B41/00E21B47/00E21B47/06G06Q50/02G06F30/20
Inventor 蒋贝贝蒋沙沙杨乾隆马欣王娜许强李迎恩袁飞宇李海涛
Owner SOUTHWEST PETROLEUM UNIV