Rock type division method and system

A rock type and rock technology, applied in the field of rock type classification methods and systems, to achieve the effect of strong operability

Pending Publication Date: 2021-10-01
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The characteristic of this method is that technicians need to have very rich experience in carbonate rock research, but there is no particularly clear and scientific determination

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  • Rock type division method and system
  • Rock type division method and system

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Embodiment Construction

[0033] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0034] Those skilled in the art will appreciate that embodiments of the present invention can be implemented as a system, apparatus, device, method, or computer program product. Therefore, the present disclosure can be embodied in the following form, namely: complete hardware, complete software (including firmware, resident software, microcode, etc.), or in combination of hardware and software.

[0035] In view of the fact that the prior art is divided by its own experience, it is divided by its own experience. The embodime...

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Abstract

The invention provides a rock type division method and system. The rock type division method comprises the following steps of: determining a capillary pressure characteristic value of each rock according to a capillary pressure and mercury saturation relation curve of each rock; dividing the plurality of rocks into a plurality of groups according to the curve characteristic value of the capillary pressure and mercury saturation relation curve of each rock, the capillary pressure characteristic value and the core porosity; determining rock classification parameters of each group of rocks according to the core porosity and the core permeability of each group of rocks; and determining the rock type of each group of rocks according to the rock classification parameters of each group of rocks so as to quantitatively divide the rock types. The rock type division method and system are high in operability, and point out a direction for the next efficient development of the carbonate rock oil and gas field.

Description

Technical field [0001] The present invention relates to the field of oil and gas exploration and development, and in particular, to a rock type division method and system. Background technique [0002] The rock type of carbonate reservoirs is more, the storage space is much, and the shape is complex, with strong non-aurability. At present, technicians are difficult to quantify and describe the type of rocky reservoirs in carbonate, affecting efficient development of carbonate rock gas fields. The rock type routine recognition of carbonate reservoirs mainly has the following methods: [0003] (1) Observation of artificial field [0004] By observing, contrast, and description by a large number of outbounds, the type of carbonate reservoir is speculated. The disadvantage of this method is that the cost is large, the investment is large, and the cycle is relatively long, which can only qualitatively divide and describe. [0005] (2) Mind heart observation and description [0006] Th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/0826G01N2015/0813
Inventor 王根久徐婕徐玮项鑫高婷
Owner PETROCHINA CO LTD
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