Summary Nonreactive minerals, such as quartz and talc, are frequently observed in carbonate reservoirs due to the sedimentary environment geological processes. However, scant attention has been given by scholars impact of these nonreactive minerals on acid-etched fracture morphology conductivity during acid fracturing. To clarify flow reaction behavior rock composed complex a mineral characterization model simultaneous for calcite, dolomite, is first developed this paper. Then, combined with...

Acid fracturing is an indispensable technology in the efficient development of carbonate oil and gas reservoirs. As for deep ultra-deep marine reservoirs, however, existing acid technologies can hardly create complex fracture networks because their particular engineering geological characteristics. In order to realize three-dimensional this paper revealed difficulties kind reservoirs based on characteristics China. Then, by taking as target, technical concept (3D-AF) was put forward...

Background: The need for an anti-osteoporotic agent is in high demand since osteoporosis contributes to rates of
 disability or impairment (high osteoporotic fracture), morbidity and mortality. Hence, the present study designed to
 evaluate protective effects of vanillic acid (VA) against bilateral ovariectomy-induced female
 Sprague-Dawley (SD) rats.
 Materials Methods: Forty healthy female adult SD rats were separated four groups with sham-operated
 control...

Abstract: The paper introduces the anomalies observed by digital tiltmeter, cross‐fault deformation meter , 4‐component borehole strainmeter and geothermometer before May 12, 2008, M s 8.0 Wenchuan earthquake, Sichuan. tiltmeter installed in epicentral region Shifang County recorded tilt 15 days earthquake with variation amplitude of 3.7 times larger than annual deviation 2007. at Zimakua station on Xianshuihe‐Anninghe fault zone detected displacement anomaly occurring since 2006 exceeding...

The objective of this study was to investigate the prognostic value preoperative mean platelet volume plateletcrit (MPV/PCT) ratio in patients with osteosarcoma.The retrospective included 188 consecutive osteosarcoma who experienced neoadjuvant chemotherapy and surgical resection tumor. relationships between MPV/PCT clinicopathological characteristics were analyzed. Kaplan-Meier analysis Cox regression proportional hazard model applied assess ratio.MPV/PCT found be significantly associated...

Traditional machine vision-based fabric defect detection techniques rely on manually extracting features, and have the problem of missed or false detections for small target detection. This article proposes a method based YOLOv5. By performing data augmentation dataset, labeling using Labellmg, iterative training YOLOv5 network model, optimal model obtained is used to test set. And compared with experimental results Faster-RCNN SSD models under same conditions. The show that has higher...

The Lower Permian reservoirs in the western Sichuan Basin are ultra-deep with high temperature, pressure and developed natural fractures. Leakage contamination of drilling fluid is main factor restricting reservoir stimulation effects, so acidification will be solution also as first choice to enhance gas recovery. In view this, an design was proposed minimize skin highest degree. A model calculate critical pumping rate for opening fractures deep beds. Then, rock samples experimental scale...

Bone metastasis remains critical for advanced stage non-small cell lung cancer (NSCLC)-a disease that is challenging to manage. Urinary markers present opportunities non-invasive testing.Urine specimens were collected from patients prior treatment. cell-free DNA was subsequently purified these samples. To address the specificity of test, driver mutations in epidermal growth factor receptor L858R and L861Q analyzed. Clinical established by comparison with healthy volunteers. Regular...

At present two technical models are commonly taken in tight gas reservoir stimulation: conventional massive fracturing and SRV fracturing, but how to select a suitable model for characteristics is still question waiting be answered. In this paper, based on the analysis of geological seepage mechanism shale reservoirs, differences between stimulation philosophy reservoirs elucidated, concept that should selected aiming at maximally improving capability reservoir. Based concept, design methods...

Abstract Objective To investigate whether cavitation induced by ultrasound stimulated microbubbles (USMB) can enhance the therapeutic effect of colchicine and reduce its side effects on acute gouty arthritis (AGA) in rats. Materials Methods Each rat underwent right ankle joint contrast-enhanced (CEUS) before following treatment. The area under curve (AUC) CEUS after among groups were compared to contrast impact blood perfusion rats with cavitation. symptoms AGA evaluated based 24-hour...

The carbonate reservoir of the Dengying Formation in Penglai Gas Field, Sichuan, China, buried at over 6000m depth with 150℃ central temperature, characterized by complex multi-scale pore structures and exhibited significant heterogeneity. Furthermore, drilling fluid filtration often occurs during drilling, resulting solid phase invasion into rock pores. This challenges characterization causes permeability evaluation. A series related experiments were conducted to investigate evaluation...