Wei Pang

Wei Pang
Sinopec · Sripe

About

54
Publications
6,325
Reads
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423
Citations
Citations since 2016
33 Research Items
410 Citations
2016201720182019202020212022010203040506070
2016201720182019202020212022010203040506070
2016201720182019202020212022010203040506070
2016201720182019202020212022010203040506070
Introduction
Skills and Expertise

Publications

Publications (54)
Article
Due to the mechanical structure and operating principle of sliding vane pump (SVP), an all-metal artificial lift equipment with high temperature resistance and high pump efficiency, an unbalanced radial hydraulic force always exists in it during oil recovery, which will cause damage on efficiency, safety and service life of production system. What'...
Conference Paper
Fuling shale gas field is one of the most successful shale gas play in China. Production logging is one of the vital technologies to evaluate the shale gas contribution in different stages and different clusters. Production logging has been conducted in over 40 wells and most of the operations are successful and good results have been observed. Som...
Article
CAGD is a novel ISC process which inherits the advantages of both ISC and SAGD. It utilizes a horizontal production well near the bottom of reservoir, and a vertical/horizontal injection well in the upper part. After ignition, a combustion zone expands to heat up oil which then mobilizes downward by gravity drainage to the bottom horizontal produce...
Article
Full-text available
Multi-gas assisted steam huff and puff process is a relatively new thermal recovery technology for offshore heavy oil reservoirs. Some blocks of Bohai oilfield have implemented multi-gas assisted steam huff and puff process. However, the development mechanism still requires further study. In this paper, high-temperature high-pressure (HTHP) PVT exp...
Conference Paper
Source rocks, such as, organic-rich shale formations have multi-scale pore structure with nano-scale features contributing to hydrocarbons storage. These hydrocarbons are divided across the organic nanopore size distribution of the source rock into fluids with altered properties. This alteration in organic nanopores is a due to multi-component hydr...
Conference Paper
Organic matter in source rocks such as coal and shale hold significant amount of adsorbed gas. Laboratory methos are available to measure the gas amount stored in the source rock samples. However, adsorbed gas release from the organic pore network and its production using wells is an issue under debate. The intricacy in the debate is mainly due to...
Conference Paper
Production data analysis (PDA) by using rate normalized pressure (RNP) and rate normalized pressure derivative (RNP’) is useful for transient rate and pressure analysis of shale gas wells with constant or smooth changing gas rate and pressure. However, some reasons may cause abrupt changes, fluctuation, or even loss of production data. The existing...
Article
Hypersound (ultrasound of gigahertz (GHz) frequency) has been recently introduced as a new type of membrane-disruption method for cells, vesicles and supported lipid bilayers (SLBs), with the potential to improve the efficiency of drug and gene delivery for biomedical applications. Here, we fabricated an integrated microchip, composed of a nano-ele...
Conference Paper
Shunbei block is nearly the deepest oilfield in China with formation buried about 8000 meters. Good production performance is gained with rate as high as 100t/d per well. The formation belongs to fault-karst carbonates and is composed by caves, natural fractures and matrix. The current well testing models that assume dual or triple mediums cannot g...
Article
Full-text available
Controllable exchange of molecules between the interior and the external environment of vesicles is critical in drug delivery and micro/nano‐reactors. While many approaches exist to trigger release from vesicles, controlled loading remains a challenge. Here, we show that gigahertz acoustic streaming generated by a nanoelectromechanical resonator ca...
Article
Full-text available
Controllable exchange of molecules between the interior and the external environment of vesicles is critical in drug delivery and micro/nano‐reactors. While many approaches exist to trigger release from vesicles, controlled loading remains a challenge. Here, we show that gigahertz acoustic streaming generated by a nanoelectromechanical resonator ca...
Conference Paper
Production data analysis (PDA) is a very useful methodology to conduct transient rate and pressure analysis for shale gas wells. However, frequent shut-ins as well as nozzle size changing and well interference often occur for shale gas wells in China. This leads to abrupt changes, fluctuation, or even loss of production data. The existing PDA metho...
Article
Full-text available
Shale gas has now become an important part of unconventional hydrocarbon resources all around the world. The typical properties of shale gas are that both adsorbed gas and free gas play important roles in gas production. Thus the contributions of free and adsorbed gas to the shale gas production have become a hot, significant, and challenging probl...
Conference Paper
Shale gas reservoirs hold adsorbed gas in kerogen. Laboratory techniques have been developed to measure the gas amount in samples. However, adsorbed gas recovery is an unsettled issue. Complexity is mainly due to adsorbed phase having an unknown composition and density, and desorbing in a selective fashion. Kerogen nanopores bring in added complexi...
Article
For most shale gas wells, frequent shut-ins and nozzle size changing often occur, leading to significant discontinuities in production data. This study proposes a new production data analysis (PDA) method to address the abrupt change issue based on the virtual equivalent time. With the virtual equivalent time, the qualities of type curve matching a...
Article
Significant discontinuities exist in the production data of many unconventional reservoirs, which always causes difficulties in production data analysis (PDA). This paper proposes a PDA method to address the problem caused by the significant discontinuities based on the virtual equivalent time, which is calculated by using the average formation pre...
Article
Full-text available
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) semiconducting materials have recently attracted wide attention and been regarded as promising building blocks for chemical sensors due to their high surface-to-volume ratio. However, their low response hinders the realization of high-performance 2D TMDCs chemical sensors. Here, we demon...
Article
In this work, gigahertz solidly mounted resonators (SMRs) (2.5 GHz) were designed and fabricated to construct a novel particle-resonator system to achieve the biomolecular stiffness sensing in real time. The positive frequency shift of the system was used to estimate the stiffness of biomolecules connecting between the SMR and attached particles. T...
Article
We developed a highly sensitive humidity sensor based on the combination of ultrahigh-frequency film bulk acoustic resonator (FBAR) and nano-assembled polyelectrolyte (PET) thin films. The water molecule absorption efficiency was optimized by forming loosely-packed PET nanostructures. Then, the humidity sensing characteristics were analyzed in term...
Conference Paper
Shunnan Block in North-West China is one of the toughest HPHT gas reservoirs with vertical depth over 7500 m, formation temperature over 200 and pressure gradient varying from 1.3 to nearly 2. The condition is close to temperature and pressure limit of well testing tools, therefore, the tools are hard to be sent to downhole and chances are that wel...
Conference Paper
Uniform fractures with equal half-length and fracture spacing are commonly assumed when conducting pressure transient analysis and production performance estimation for shale gas wells. However, production loggings and microseismic in many shale gas wells illustrate that only about one third to one half of hydraulic fractures produces. Meanwhile, t...
Article
Surface acoustic wave (SAW) sensors and micro-electromechanical system (MEMS) technology provide a promising solution for measurement in harsh environments such as gas turbines. In this paper, a SAW resonator (size: 1107 μm× 721 μm) based on the AlN/4H-SiC multilayer structure is designed and simulated. A MEMS-compatible fabrication process is empl...
Conference Paper
China is the first country achieving shale gas breakthrough outside the North America. Fuling shale gas play is one of the most successful shale gas reservoirs by far in China. However, production loggings in more than ten wells illustrate that only about one third to one half of hydraulic fractures produces. Meanwhile, the productive fractures con...
Article
The thin film bulk acoustic resonator (FBAR) array based on MEMS can realize high throughput detection in sensing a variety of volatile gases. In this paper, by virtue of modifying the surface of film bulk acoustic resonators with different functional groups to form sensor array, the volatile gas can interact differently with different chemical fun...
Article
Transition-metal dichalcogenides hold potential practical applications and great promises for electrical, optical and mechatronic devices. Among all the candidates, molybdenum disulfide is gaining increasing attention as a promising gate insulator and channel material for field effect transistors. In this paper we studied the field effect transisto...
Article
Full-text available
Optical microcavity sensors using intensity detection open up the possibility to realize fully integrated high-performance sensing devices, which are significant for both fundamental study of molecular interaction and rapid disease diagnosis. Although the performance of microresonator-based sensors has been studied focusing on the resonance-trackin...
Conference Paper
Novel phase features of EIT-like effect are theoretically identified in terahertz metamaterials. An active transition between distinct EIT phase regimes and a tunable optical delay > 3.5 ps are also demonstrated by introducing gate-controlled graphene.
Article
Full-text available
In this letter, we demonstrate a technique to eliminate the spurious modes in aluminum nitride Lamb wave resonators (LWRs). The transverse acoustic wave characteristics are examined, and a resonance modulation theory on the regulation of mechanical boundary conditions is deducted. As examples of embodiments, vertical and lateral protrusion structur...
Conference Paper
China owns the world's largest shale gas reserve and is the third country gaining shale gas breakthrough in the world besides the North America. Fuling in Sichuan basin is the first industrially exploited shale gas play in China. Fuling shale gas wells gain good production performance, and the gas rate of some wells are as high as 0.6 million m3 du...
Conference Paper
The stimulated reservoir volume (SRV) estimated from daily production rate and pressure is a vital parameter for appraising shale gas wells’ fracturing effect and production potential. However, when well interference occurs, the SRV estimation from rate-normalized pressure (RNP) analysis is compromised. This paper illustrates diagnosis of well inte...
Conference Paper
China is believed to own the world's largest shale gas reserve and is the third country to exploit shale gas breakthrough in the world. Fuling gas play in Sichuan basin is one typical shale gas reservoir in China gaining good production performance, and the absolute open flow capacity (AOF) of some wells reaches as high as 1.5 million cubic meters...
Conference Paper
Full-text available
China is the third country gaining shale gas breakthrough in the world after the United States and Canada. Fuling shale gas play is the most successful shale gas reservoir by far in China with average absolute open flow (AOF) capacity of 400 thousand cubic meters per well and the amount reaches 8 million cubic meters in one year for some wells. How...
Conference Paper
Most multiple transverse fracture horizontal wells in shale gas formations remain in transient bilinear or linear flow for very long periods, typically several years. Some plays show very different behavior that has been attributed to pressure dependent permeability. Often, there are reported cases of shale wells that exhibit boundary dominated flo...
Conference Paper
Girasol oilfield is the first oilfield of Mansarovar Energy Colombia Ltd. (MECL) employing horizontal wells. With first well drilled in 2004 and commercial development started in 2008, this typical heavy oilfield have been produced for 10 years, but the current recovery factor is only 5.09%, and that is much lower than that of similar oilfields. Gi...
Article
Full-text available
Bulk acoustic wave (BAW) resonators are widely applied in filters and gravimetric sensors for physical or biochemical sensing. In this work, a new architecture of BAW resonator is demonstrated, which introduces a pair of reflection layers onto the top of a thin film bulk acoustic resonator (FBAR) device. The new device can be transformed between ty...
Article
Full-text available
Zinc oxide (ZnO) nanostructures are promising candidates as electronic components for biological and chemical applications. In this study, ZnO ultra-fine nanowire (NW) and nanoflake (NF) hybrid structures have been prepared by Au-assisted chemical vapor deposition (CVD) under ambient pressure. Their surface morphology, lattice structures, and cryst...
Conference Paper
Girasol oilfield is the first oilfield of Mansarovar Energy Colombia Ltd. (MECL) employing horizontal wells. With first well drilled in 2004 and commercial development started in 2008, this typical heavy oilfield have been produced for 10 years, but the current recovery factor is only 5.09%, and that is much lower than that of similar oilfields. Gi...
Article
This paper describes the detection of volatile organic compounds (VOCs) using an e-nose type integrated microfabricated sensor array, in which each resonator is coated with different supramolecular monolayers: p-tert-butyl calix[8]arene (Calix[8]arene), 2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphine (Porphyrin), beta-cyclodextrin (β-CD) and cucurbi...
Article
Full-text available
This paper presents a transverse mode suppression theory and its experimental verification through aluminum nitride Lamb wave resonators (LWRs) operating at 142 MHz. An effective 2-D approximation model of the LWR is proposed, based on which the origin of transverse modes in LWR is investigated. The displacement distribution, resonant frequencies,...
Article
Designing hydraulic-fracture stimulation to optimize well productivity requires a carrier fluid with a suitable leakoff coefficient and knowledge of the initial reservoir pressure and permeability, the closure-stress magnitudes in the reservoir and in the bounding formations, and rock properties such as the Young’s modulus and the Poisson’s ratio,...
Article
A high-resolution humidity sensor based on MEMS FBAR with spin-coated PVA thin film is reported. The sensors exhibit very high sensitivity to water vapor and are able to detect down to 0.08 % change in relative humidity by monitoring the shift in series resonant frequency of the FBARs. The integration of these devices with CMOS oscillating circuits...
Article
Full-text available
Nowadays, the annual heavy oil production is more than 15 million tons in China and more than 60% of which are developed by cyclic steam stimulation (CSS) technology. Vacuum insulated tubing (VIT) with thermal packer is the mostly adopted thermal insulation manner during steam injection progress. This usually leads to two major problems. One is cas...
Conference Paper
Perforated completion is one of the most common completion methods for horizontal wells and perforation density optimisation plays a crucial role in alleviating water cut of wells in water-driven reservoir. Unscientific perforation scheme may leads to ununiform production influx profile and premature water breakthrough which will shorten production...
Article
Full-text available
A 3D three-phase segmentally variable density perforation optimization model for horizontal wells is built by coupling reservoir fluid filtration, near wellbore inflow and wellbore conduit flow based on reservoir numerical simulation. The effects of 8 factors (filtration difference between heel/toe and middle intervals, imperforated interval, perme...

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