Interference well testing method for volcanic gas reservoir horizontal well

A technology that interferes with well testing and horizontal wells. It is applied in wellbore/well components, earthwork drilling and production, and special data processing applications. It can solve the problems of heavy workload and large amount of recorded data, and achieve small workload and less recorded data. Effect

Pending Publication Date: 2022-02-18
PETROCHINA CO LTD
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Problems solved by technology

[0007] The main purpose of the present invention is to provide a method for interfering well testing of horizontal wells in volcanic gas reservoirs, so as to solve the problems in the prior art that the method of interfering well testing for horizontal wells in volcanic gas reservoirs has a lot of recorded data and a large workload ; and can identify and explain the connectivity and parameter problems between horizontal wells and vertical wells in volcanic gas reservoirs

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  • Interference well testing method for volcanic gas reservoir horizontal well
  • Interference well testing method for volcanic gas reservoir horizontal well
  • Interference well testing method for volcanic gas reservoir horizontal well

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[0066] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0067] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0068] For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encomp...

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Abstract

The invention provides an interference well testing method for a volcanic gas reservoir horizontal well. The interference well testing method comprises the steps of A, measuring basic parameters in a well group of vertical wells around the horizontal well with the horizontal well as the center; B, changing the working system of the horizontal well, and measuring the pressure change data of the horizontal well and the well bottom of a vertical well around the horizontal well; C, establishing a bottom hole pressure analysis chart of the vertical well under the interference of the horizontal well according to the mathematical model; and D, establishing a well bottom pressure parameter sensitivity analysis chart of the vertical well under the interference of the horizontal well. According to the method, the problems that in the prior art, an interference well testing method for the volcanic gas reservoir horizontal well is large in recorded data amount and large in workload are effectively solved; and connectivity and parameter problems between the volcanic gas reservoir horizontal well and the volcanic gas reservoir vertical well can be identified and explained.

Description

technical field [0001] The invention relates to the technical field of a horizontal well mining method for a volcanic gas reservoir, in particular to an interference well testing method for a horizontal well of a volcanic gas reservoir. Background technique [0002] The well testing method is a method to study the characteristics of the reservoir through the dynamic response of the reservoir pressure. The well testing method is to test the pressure dynamic response of the reservoir under the given signal by giving a series of "signals" to the reservoir, which are usually produced by changing the working system of the well. Well testing methods can be mainly divided into two categories. One is unstable well testing methods, which continuously test the change process of bottomhole pressure with time due to changes in the working system of the well. Through the characteristics of this pressure change process, the Well testing methods to study the characteristic parameters of w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B47/00G06F30/20
CPCE21B49/00E21B47/00G06F30/20
Inventor 石新朴陈如鹤李波杨丹周兴燕胡文陈强
Owner PETROCHINA CO LTD
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