Development of the theory and technology for low permeability reservoirs in China

HU Wenrui; WEI Yi; BAO Jingwei

doi:10.11698/PED.2018.04.10

Petroleum Exploration and Development >

2018 , Vol. 45 >Issue 4: 646 - 656

DOI: https://doi.org/10.11698/PED.2018.04.10

OIL AND GAS FIELD DEVELOPMENT

Development of the theory and technology for low permeability reservoirs in China

HU Wenrui ,
WEI Yi ,
BAO Jingwei

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1. China National Petroleum Corporation, Beijing 100724, China;
2. SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;
3. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China;

Received date: 2018-03-26

Revised date: 2018-05-28

Online published: 2018-06-13

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Abstract

The development theories of low-permeability oil and gas reservoirs are refined, the key development technologies are summarized, and the prospect and technical direction of sustainable development are discussed based on the understanding and research on developed low-permeability oil and gas resources in China. The main achievements include: (1) the theories of low-permeability reservoir seepage, dual-medium seepage, relative homogeneity, etc. (2) the well location optimization technology combining favorable area of reservoir with gas-bearing prediction and combining pre-stack with post-stack; (3) oriented perforating multi-fracture, multistage sand adding, multistage temporary plugging, vertical well multilayer, horizontal and other fracturing techniques to improve productivity of single well; (4) the technology of increasing injection and keeping pressure, such as overall decreasing pressure, local pressurization, shaped charge stamping and plugging removal, fine separate injection, mild advanced water injection and so on; (5) enhanced recovery technology of optimization of injection-production well network in horizontal wells. To continue to develop low-permeability reserves economically and effectively, there are three aspects of work to be done well: (1) depending on technical improvement, continue to innovate new technologies and methods, establish a new mode of low quality reservoir development economically, determine the main technical boundaries and form replacement technology reserves of advanced development; (2) adhering to the management system of low cost technology & low cost, set up a complete set of low-cost dual integration innovation system through continuous innovation in technology and management; (3) striving for national preferential policies.

Key words： low permeability oil and gas reservoir; seepage theory; volume fracturing; waterflooding technology; well location optimization; horizontal well; technical development direction

Cite this article

HU Wenrui , WEI Yi , BAO Jingwei . Development of the theory and technology for low permeability reservoirs in China[J]. Petroleum Exploration and Development, 2018 , 45(4) : 646 -656 . DOI: 10.11698/PED.2018.04.10

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