Summary and Overview of Development Technologies of Unconventional Oil and Gas Reservoir

Abstract

Conventional reservoirs and unconventional reservoirs differ a lot in terms of accumulation mechanism, distribution, exploration evaluation method and technique. Therefore the accumulation study and exploration evaluation for unconventional reservoir are different from that of traditional reservoir. This paper presents five development techniques of unconventional oil and gas resources, their features, advantages and disadvantages and summarizes the current advanced technologies and their development trends.

Study on Reservoir Characteristics of Shuguang Lower Hill

“…All kinds of lithology in the 3700 series of electrical logging curve characteristics obviously, based on conventional well log and core data chart to make lithology identification, argillaceous rocks have the characteristics of "three tall one low", which with high natural gamma, compensated neutron and acoustic, low density; Quartzite has the characteristics of "two tall two low", namely the high natural gamma, high acoustic, low density, low compensated neutron; Carbonate has the characteristics of "three low one tall", low natural gamma, compensated neutron, acoustic, high density [5](is shown in Fig. 2, Fig.…”

Application and Research Progress of CO2 Stimulation Technology in Unconventional Oil and Gas Reservoirs: A Review and Prospect

“…1−3 In comparison to conventional oil and gas resources, their reserves in China are greater but their geological conditions are more complex. 4,5 Thus, their exploitation is extremely hard and costly. 4−6 CO 2 is a greenhouse gas that can cause climate abnormalities.…”

“…Meanwhile, the difficulty of exploitation is also increasing in the past few decades. , This leads to the fact that conventional oil and gas resources exploited in China cannot support national daily consumption . A large number of oil and gas resources need to be imported from abroad. , With the discovery of a large number of unconventional oil and gas resources and the gradual reduction of conventional oil and gas resources in China, the focus of oil–gas resource exploitation has begun to shift to unconventional resources. − In comparison to conventional oil and gas resources, their reserves in China are greater but their geological conditions are more complex. , Thus, their exploitation is extremely hard and costly. − …”