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Evaluating and analyzing method for shale gas reservoir exploration economical efficiency

A technology of economic evaluation and analysis method, applied in the field of economic evaluation and analysis of shale gas reservoir development, can solve the problems of no shale gas reservoir economic evaluation method and immature technical means

Inactive Publication Date: 2018-03-06
郭强
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, shale gas development in China is still in the stage of resource evaluation, favorable area selection and pilot area test, the technical means are not mature enough, and there is no clear economic evaluation method for shale gas reservoirs

Method used

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  • Evaluating and analyzing method for shale gas reservoir exploration economical efficiency

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Embodiment 1

[0014] Such as figure 1 The economic evaluation and analysis method of shale gas reservoir development shown in the figure, in a certain shale gas exploration and development block, implement the following technical steps: (a) determine the total controlled reserves of shale gas in the block; (b) collect For the data of all test wells in the block, draw the probability distribution map and production decline curve of the test wells, and calculate the weighted average of the controlled reserves of a single well; (c) divide the total controlled reserves by the weighted average of the controlled reserves of a single well, and then Combined with structural features, predict the total number of wells that need to be arranged in the block; (d) calculate the average drilling cost of all wells drilled in the block, and add the average drilling cost to the completion and production costs to obtain the single well drilling cost. Completion engineering cost: multiply the single well dril...

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Abstract

The invention discloses a method for evaluating and analyzing the economics of shale gas reservoir development. By subtracting the total cost of drilling and completion from the theoretical total income, subtracting the auxiliary cost, and subtracting taxes and fees, the net profit of the income minus the cost is obtained. According to the positive, negative and size of P value, the economics of the shale gas reservoir is evaluated on this basis, which provides an economical evaluation method for shale gas development.

Description

technical field [0001] The invention relates to the field of oil and gas development, in particular to a method for evaluating and analyzing the economics of shale gas reservoir development. Background technique [0002] Shale gas reservoirs exist in the source rock strata in an adsorbed state on the surface of organic matter and clay minerals, or in a free state in the pores and fractures of the shale matrix, showing typical "self-generation and self-storage" accumulation characteristics. Shale oil and gas, as a new source of energy extraction in recent years, has broad prospects around the world for the development of oil and gas resources from oil source formations that were previously thought to be unable to store oil and gas. Shale gas has become a research hotspot in my country's unconventional oil and gas field. The Ministry of Land and Resources pointed out in the national survey and evaluation results of shale gas resource potential that my country's shale gas explo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/063G06Q50/02
Inventor 郭强
Owner 郭强
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