A method and device for determining the degree of development of dissolution-generation pores in igneous rock reservoir layers
A technology of pore development and igneous rock, which is applied in the direction of measuring devices, nuclear radiation exploration, and test sample preparation, etc., and can solve the problems of low accuracy of igneous rock reservoir formation and dissolution pore development
Active Publication Date: 2019-08-06
PETROCHINA CO LTD
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Problems solved by technology
In this way, only based on the formation structure information, lithofacies and lithology characteristics information of igneous rock formations, the accuracy of the predicted development degree of dissolution pores in igneous rock reservoir layers in the target work area is low
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[0053] The embodiment of the present application provides a method and device for determining the development degree of dissolution pores in igneous rock reservoirs.
[0054] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0055] figure 1 It is a flowchart of an embodiment of a method for determining the development degree of secondary dissolution pores in igneous rock reservoirs in this app...
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Abstract
The embodiment of the invention discloses a method and device for determining the development degree of secondary erosion pores of an igneous rock reservoir. The method comprises the steps: respectively determining the fabric information and alkalinity characteristics of rock samples of the igneous rock reservoirs in a first block and a second block of a target work area; carrying out the simulation corrosion processing of the rock sample of the igneous rock reservoir in the first block, and obtaining the pore increasing number of the rock sample of the igneous rock reservoir in the first block after corrosion; building the correlation between the fabric information and alkalinity characteristics of the rock sample of the igneous rock reservoir in the first block and the development degree of the secondary erosion pores of the igneous rock reservoir; and determining the development degree of the secondary erosion pores of the igneous rock reservoir in the second block based on the correlation between the fabric information and alkalinity characteristics of the rock sample of the igneous rock reservoir in the first block and the development degree of the secondary erosion pores of the igneous rock reservoir and the fabric information and alkalinity characteristics of the rock sample of the igneous rock reservoir in the second block. The method can improve the accuracy of the determined development degree of the secondary erosion pores of the igneous rock reservoir.
Description
technical field [0001] The application relates to the technical field of oil and gas exploration and development, in particular to a method and device for determining the development degree of dissolution pores in igneous rock reservoirs. Background technique [0002] Igneous rocks are rocks formed when magma cools. Igneous rocks are usually the rock types of reservoirs rich in oil and gas accumulation potential in petroleum basins, and the reservoirs formed by this rock type can be called igneous rock reservoirs. At present, igneous rock reservoirs have become an important target layer for oil and gas exploration and development in my country. [0003] In the process of oil and gas exploration and development, researchers need to first predict the potential of igneous rock reservoirs in oil and gas-bearing basins to develop storage space, then formulate corresponding drilling design plans according to the prediction results, and finally carry out well location deployment a...
Claims
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IPC IPC(8): G01V11/00G01V5/00G01N23/223G01N15/08G01N1/32
CPCG01N1/32G01N15/088G01N23/223G01V5/00G01V11/00
Inventor 任康绪邓西里刘达望张丹锋
Owner PETROCHINA CO LTD