Currently,unconventional reservoirs are characterized by low single well-controlled reserves,high initial production but fast production decline.This paper sorts out the problems of energy dispersion and limited lengt...Currently,unconventional reservoirs are characterized by low single well-controlled reserves,high initial production but fast production decline.This paper sorts out the problems of energy dispersion and limited length and height of main hydraulic fractures induced in staged multi-cluster fracturing,and proposes an innovative concept of“energy-focused fracturing development”.The technical connotation,theoretical model,and core techniques of energy-focused fracturing development are systematically examined,and the implementation path of this technology is determined.The energy-focused fracturing development technology incorporates the techniques such as geology-engineering integrated design,perforation optimization design,fracturing process design,and drainage engineering control.It transforms the numerous,short and dense hydraulic fractures to limited,long and sparse fractures.It focuses on fracturing energy,and aims to improve the fracture length,height and lateral width,and the proppant long-distance transportation capacity,thus enhancing the single well-controlled reserves and development effect.The energy-focused fracturing development technology has been successfully applied in the carbonate reservoirs in buried hill,shallow coalbed methane reservoirs,and coal-rock gas reservoirs in China,demonstrating the technology's promising application.It is concluded that the energy-focused fracturing development technology can significantly increase the single well production and estimated ultimate recovery(EUR),and will be helpful for efficiently developing low-permeability,unconventional and low-grade resources in China.展开更多
Village revitalization is a major development strategy in China,where village planning plays as its critical component.Taking village planning of De’an County in Jiangxi Province as an example,this paper explored the...Village revitalization is a major development strategy in China,where village planning plays as its critical component.Taking village planning of De’an County in Jiangxi Province as an example,this paper explored the significant importance of village planning in promoting rural revitalization along with its corresponding promote mechanisms.Through in-depth research on the detailed situation of village planning and implementation in Jiangxi,this paper summarized that some challenges exist,including backward planning,poor planning consciousness,difficulties in planning implementation.Based on these findings,the paper analyzed the challenges of village land resource scarcity,village images lacking in uniqueness features,and insufficient rural infrastructure construction.Furthermore,it proposed strategies such as taking the lead in planning from the beginning,advancing practical implementation at a high level,adhering to bottom-line thinking,and coordinating high-quality rural land protection and development,applying strategies such as ecological and pleasant living,building villages suitable for living and working,and construction of beautiful countryside,aiming to provide valuable reference for related research fields.展开更多
基金Supported by the PetroChina Scentific and Technological Projects(2023ZZ082023ZZ28)。
文摘Currently,unconventional reservoirs are characterized by low single well-controlled reserves,high initial production but fast production decline.This paper sorts out the problems of energy dispersion and limited length and height of main hydraulic fractures induced in staged multi-cluster fracturing,and proposes an innovative concept of“energy-focused fracturing development”.The technical connotation,theoretical model,and core techniques of energy-focused fracturing development are systematically examined,and the implementation path of this technology is determined.The energy-focused fracturing development technology incorporates the techniques such as geology-engineering integrated design,perforation optimization design,fracturing process design,and drainage engineering control.It transforms the numerous,short and dense hydraulic fractures to limited,long and sparse fractures.It focuses on fracturing energy,and aims to improve the fracture length,height and lateral width,and the proppant long-distance transportation capacity,thus enhancing the single well-controlled reserves and development effect.The energy-focused fracturing development technology has been successfully applied in the carbonate reservoirs in buried hill,shallow coalbed methane reservoirs,and coal-rock gas reservoirs in China,demonstrating the technology's promising application.It is concluded that the energy-focused fracturing development technology can significantly increase the single well production and estimated ultimate recovery(EUR),and will be helpful for efficiently developing low-permeability,unconventional and low-grade resources in China.
文摘Village revitalization is a major development strategy in China,where village planning plays as its critical component.Taking village planning of De’an County in Jiangxi Province as an example,this paper explored the significant importance of village planning in promoting rural revitalization along with its corresponding promote mechanisms.Through in-depth research on the detailed situation of village planning and implementation in Jiangxi,this paper summarized that some challenges exist,including backward planning,poor planning consciousness,difficulties in planning implementation.Based on these findings,the paper analyzed the challenges of village land resource scarcity,village images lacking in uniqueness features,and insufficient rural infrastructure construction.Furthermore,it proposed strategies such as taking the lead in planning from the beginning,advancing practical implementation at a high level,adhering to bottom-line thinking,and coordinating high-quality rural land protection and development,applying strategies such as ecological and pleasant living,building villages suitable for living and working,and construction of beautiful countryside,aiming to provide valuable reference for related research fields.
