This paper provides an introduction to the topic of water shutoff and conformance
improvement. After indicating the volumes of water produced during oilfield operations, a …

High water production is a common problem in mature oil reservoirs. Gel-based treatments
have been widely used as blocking agents to control water production in heterogeneous …

Gel treatment is one of the most efficient enhanced oil recovery techniques used for
conformance control. In recent years, preformed particle gels (PPG) have gained attention …

Carbon capture and storage (CCS) technology has been widely investigated to decrease
the greenhouse effect. Geological CO2 storage sites are targeted mainly on depleted …

There exists a large interlayer pressure difference in the oil wells of the Fuyu oilfield, and the
high-pressure layer has a relatively high liquid production. The low-pressure layer is …

For CO 2 storage in subsurface reservoirs, one of the most crucial requirements is the ability
to remediate the leakage caused by the natural fractures or newly generated fractures due to …

Polymer gels with suitable viscoelasticity and deformability have been widely used for
formation plugging and lost circulation control, profile control, and water shutoff. This article …

As one of the most widely used technology to ameliorate the reservoir's heterogeneity,
polymer gels have been applied for more than 60 years. However, how to plug fractured …

The utilization and storage of CO 2 emissions from oil production and consumption in the
upstream oil industry will contribute to sustainable development. CO 2 flooding is the key …

Lithologic reservoirs, such as conglomerate reservoirs, exhibit stronger heterogeneity
compared with conventional sandstone reservoirs. Their early stage development usually …