Shale oil horizontal well deployment method and device

A technology for horizontal wells and shale oil, which is applied in the field of shale oil horizontal well deployment methods and devices, and can solve the problems of deploying shale oil horizontal wells in fault zones
CN110424945AActive Publication Date: 2019-11-08PETROCHINA CO LTD
7 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2019-11-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a shale oil horizontal well deployment method and device. The method includes the following steps that structure contour data and dessert distribution data of a target area areobtained; according to the structure contour data and the dessert distribution data, a favorable drilling exploration area of a horizontal well and a horizontal section distribution area of a to-be-deployed horizontal well in a target area are determined; one secant is set in the horizontal section distribution area, in the range of the favorable drilling exploration area of the horizontal well, the average value of the included angles between the secant and structure contour normals is calculated, and the maximum intersection distance between the intersections of the secant and structure contours and the intersection of the secant and a boundary line of the dessert distribution data is calculated; according to the average value of the included angle and the maximum intersection distance,the direction of the to-be-deployed horizontal well is determined; according to the direction of the to-be-deployed horizontal well, an entrance window point, a control point and a drilling finishingpoint of a horizontal section of the to-be-deployed horizontal well are determined. The method can achieve quantitative deployment of the shale oil horizontal well in a fracture zone.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of petroleum exploration, in particular to a shale oil horizontal well deployment method and device. Background technique

[0002] The target layer of the existing horizontal well design is mainly for sandstone reservoirs or tight sandstone reservoirs, and the spatial distribution of sandstone or tight sandstone is mainly affected by the supply capacity of terrigenous clastics. Based on the sand body combination mode and sand body thickness, the equivalent map of sand layer thickness is drawn, and the well pattern is designed according to the plane distribution characteristics of sand body and oil layer thickness. In contrast, shale oil is distributed in the middle of the lake basin and is less affected by terrigenous clastics. It has the characteristics of stable plane distribution and overall oil content. In the process of horizontal well design, the top-bottom structure contour map of the sweet spot is ma...

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