Method for improving recovery ratio of braided well pattern of hugely thick or multi-layer oil and gas reservoir
US11649711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2021 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Oct 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V20/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention discloses a method for improving a recovery ratio of a braided well pattern of a hugely thick or multi-layer oil and gas reservoir, which improves the recovery ratio of the hugely thick or multi-layer oil and gas reservoir by designing the braided well pattern. The braided well pattern is designed through the following method: dividing a cubic development unit of the oil and gas reservoir; measuring a physical property parameter of the cubic development unit; calculating a well pattern design parameter according to the physical property parameter, wherein the well pattern design parameter includes a number of wells and a well bore track; and drilling a large-displacement horizontal well according to the well pattern design parameter. The step of dividing the cubic development unit of the oil and gas reservoir specifically includes: obtaining a boundary of the oil and gas reservoir through seismic volume data; obtaining a main layer series of development of the oil and gas reservoir according to a geological model established on the basis of a prospecting parameter; and establishing a cube with a largest volume in the main layer series of development, wherein the cube …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.