Geochemical signature and origin of natural gas in the Weixinan Depression, Beibu Gulf Basin, South China Sea
December 2024
The Weixinan Depression is a petroliferous depression in the Beibu Gulf Basin. After years of related research, scholars have gained a certain understanding of the oil accumulation law in the depression....
Share article
Sustainable hydrate inhibition: Pectin and MEG synergy for deep-sea environments
December 2024
To ensure the continuous operation of the oil and gas industry, it is imperative to maintain an uninterrupted flow of oil and gas through pipelines and pay specific attention to preventing disruptions...
Share article
Origin and accumulation of natural gas in the Carboniferous carbonate in the buried hill A area, Weixinan Depression, Beibu Gulf Basin
December 2024
Buried hills constitute a significant oil and gas exploration area in the Weixinan Depression. The A area is a typical buried hill, and carbonate hills are considered major reservoir reserves with rich...
Share article
Geochemistry and the genesis of natural gases in the deep reservoirs of the Bozhong Depression, Bohai Bay Basin, China
December 2024
A large gas field with reserves of nearly 200 billion m3—BZ19-6—was discovered in the Bozhong Depression in the Bohai Bay Basin in 2018. There is a considerable difference between the amount of natural...
Share article
Gas generation potential of Oligocene source rocks in Yinggehai Basin
December 2024
For many years, natural gas exploration in Yinggehai Basin has mainly focused on Miocene source rocks, and several exploration successes and insights have been achieved. However, limited research on...
Share article
The coupling relationships of the Oligocene fault fan system and their control over natural gas accumulation in the Qiongdongnan Basin
December 2024
Oligocene (fan) delta-associated coal measures and marine source rocks are the main gas-generating source rocks in the Qiongdongnan Basin, and (fan) delta sand bodies are the dominant types of reservoirs....
Share article
Gas generation and main gas source rocks in Baiyun Sag and the Pearl River Mouth Basin of the northern South China Sea
December 2024
Due to the limited number of exploration wells in Paleogene mudstones, as well as the complex and diverse types of delta, lacustrine, and marine source rocks in locations in the marine–continental transitional...
Share article
Genetic types and accumulation models of natural gas in the Weixinan depression of the Beibu Gulf Basin in the western South China Sea
December 2024
Exploration in the Weixinan depression of the Beibu Gulf Basin has long focused on crude oil, with less natural gas exploration, so the genetic types and accumulation characteristics of the natural...
Share article
Oil and natural gas geochemistry in offshore China: Advances and challenges
December 2024
For many years, oil and natural gas geochemistry has been key to hydrocarbon exploration and exploitation in offshore China. Onshore oil fields have been thoroughly explored and exploited and have now...
Share article
Types of lithofacies in the Lower Cambrian marine shale of the Northern Guizhou Region and their suitability for shale gas exploration
October 2024
The lithofacies and thermal maturity of the over-mature Lower Cambrian marine shale in the Northern Guizhou Region, and their impacts on reservoir properties in this shale were analyzed by combining...
Share article
An experimental study of the effect of temperature on teeth breaking efficiency based on rock mechanical properties
October 2024
To master changes in rock mechanical properties and the impact of high temperature on rock-breaking efficiency, the rock mechanical properties of granite, limestone, and sandstone under different temperatures...
Share article
Integrated study of hydraulic/CO2 fracturing and production coupled with a THM-D process in ultra-shallow shale reservoirs
October 2024
To explore fracturing technology for vertical wells in ultra-shallow shale gas reservoirs, a coupled thermo-hydro-mechanical-damage (THM-D) fracturing and production integration model is established...
Share article
A reverse biomarker-derived maturity trend in Triassic Yanchang Formation shales from the Ordos Basin in China
October 2024
Organic-rich shales from the Triassic Yanchang Formation in the Ordos Basin in China are mainly derived from aquatic organisms with type II kerogen. A reverse maturity trend, derived from the commonly...
Share article
Generic layout optimization design methodology for China's loop-star natural gas field pipeline network
October 2024
The layout optimization design of a natural gas gathering pipeline network is a multi-objective optimization problem because the extant theories are unable to meet the different decision preferences...
Share article
Pore heterogeneity and evolution of the Lower Silurian Longmaxi shale reservoir in the Southern Sichuan Basin: Responses to sedimentary environment
October 2024
As the cornerstone for evaluating the storage capacity of shale reservoirs and assessing the viability of shale gas exploitation, shale pores play a very important role in shale reservoirs. Based on...
Share article
Fluid activity characteristics of shallow shale veins in the Wufeng–Longmaxi Formation in the Shixi syncline in northern Guizhou and their significance for shale gas preservation
October 2024
Preservation conditions are key to enriching shallow shale gas. Therefore, the veins of two typical wells in the Shixi syncline in northern Guizhou as research objects. Based on core observation, vein...
Share article
Fracture features and fault influence on gas accumulation in the Longmaxi Formation in Changning block, southern Sichuan Basin
October 2024
The Lower Silurian Longmaxi Formation is a major horizon for shale gas development in the Changning block in Sichuan Basin. In this study, the fracture features in the Longmaxi Formation in the Changning...
Share article
A novel EUR prediction model for fractured horizontal shale gas wells based on material balance theory
October 2024
Accurately predicting the estimated ultimate recovery (EUR) of shale gas wells is key to formulating a shale gas reservoir development plan. However, in practice, determining the EUR remains challenging...
Share article
Experimental study on the diffusion process of natural gas from buried pipelines to underground confined spaces
October 2024
In recent years, leakage from buried gas pipelines has been a frequent occurrence around the world. Leaked gas can quickly diffuse and accumulate in adjacent confined spaces, such as inspection wells,...
Share article
Impact of rock strength degradation by fluid intrusion on borehole stability in shale
October 2024
The interaction between shale bedding planes and fluids significantly weakens their structural integrity, profoundly affecting borehole stability in shale reservoirs. However, traditional analyses often...
Share article
Simulation analysis of gas–liquid flow and mass transfer in a shaking triethylene glycol dewatering absorber
August 2024
Tall towers with large diameters on floating liquefied natural gas devices are highly sensitive to sway. If tower equipment is relatively high, swaying can easily cause uneven gas–liquid contact in...
Share article
Analyses of the characteristics and main controlling factors of shale pores in the Niutitang Formation in the Guizhou region
August 2024
The shale of the Lower Cambrian Niutitang Formation in the Guizhou region has undergone complex diagenesis and has developed different types of pore textures, which affect the occurrence status of shale....
Share article
Creep behavior of marine Wufeng–Longmaxi Formation shales in the Sichuan Basin, Southwest China characterized at micro scale: A case study of exploration well SQ-1 in Sanquan Town, Nanchuan District, Chongqing
August 2024
Creep behavior is a very important attribute of shale and is crucial in the design of hydraulic fracturing schemes to ensure the long-term stable development of shale gas. However, how different shale...
Share article
Investigation of the effect of bedding and confining pressure on the energy evolution of shale during the unloading process
August 2024
To explore the effect of bedding and initial confining pressure on the energy evolution characteristics of shale during the unloading process, samples were drilled with different bedding angles, unloading...
Share article
Hydrocarbon accumulation process and reservoir-forming models of structure A in the central inversion tectonic belt of the Xihu Depression, East China Sea Basin
August 2024
The Huagang Formation of the central inverted structural tectonic belt structure A in the Xihu Depression has abundant hydrocarbon resources. This is an important area for exploration and development...
Share article
