Benzo[b]naphthothiophenes and alkyl dibenzothiophenes: Molecular tracers for oil migration distances

Based on the thermodynamic stability and hydrogen bond mechanisms, alkyl dibenzothiophene molecular ratios, 4-/1-MDBT, and 4,6-/1,4-DMDBT, are used to characterize organic maturity and oil migration, which can act as molecular tracers for the filling orientation and pathway in oil reservoir. The results show that the well Shuang32 is the filling point which is close to the source kitchen. Three advantaged oil migration and filling pathways have been discovered, the first one is that oil is charged from well Shuang32 to well Shuang26- well Shuang301- well Shuang31 in northeast orientation, the second one is that oil is charged from well Shuang32 to well Shuang34- well Shuang36 in southwest orientation, the third one is that oil is charged from well Shuang 32 to well Chang502- well Shuang 23 in west-northwest orientation.

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INFLUENCE OF NATURAL FRACTURES ON OIL MIGRATION AND CHARGING: A CASE STUDY ON THE PERMIAN LUCAOGOU FORMATION IN THE JIMSAR SAG, JUNGGAR BASIN, NW CHINA

10.1130/abs/2019am-333029 ◽

2019 ◽

Author(s):

Yunzhao Zhang ◽

◽

Zeng Lianbo

Keyword(s):

Junggar Basin ◽

Natural Fractures ◽

Oil Migration ◽

Nw China ◽

Lucaogou Formation ◽

Jimsar Sag

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Intravitreal Silicone Oil Migration Into the Lateral Cerebral Ventricles

Journal of VitreoRetinal Diseases ◽

10.1177/2474126419875298 ◽

2019 ◽

Vol 3 (6) ◽

pp. 466-473

Author(s):

Jessica L. Cao ◽

Andrew W. Browne ◽

Thomas Clifford ◽

Sumit Sharma ◽

Vivek Patel

Keyword(s):

Case Report ◽

Retinal Detachment ◽

Literature Review ◽

Current Literature ◽

Symptom Management ◽

Silicone Oil ◽

Cerebral Ventricles ◽

Oil Migration ◽

Intraocular Tamponade ◽

History Of

Purpose: Silicone oil (SO) is often used as an intraocular tamponade in repairs of retinal detachments. It may be associated with complications such as cataract, glaucoma, keratopathy, subretinal migration of oil, fibrous epiretinal and sub retinal proliferations, and oil emulsification. The purpose of this report is to describe a rare phenomenon of intraocular silicone oil migration into the cerebral ventricles, which may later be mistaken for intraventricular hemorrhages on neuroimaging. Methods: Case report with literature review. Results: A patient with a history of retinal detachment repair with intraocular SO presented with headaches. Neuroimaging revealed SO migration to the cerebral ventricles. The patient was treated conservatively with symptom management and headaches resolved. Conclusions: We present a case of intraocular SO migration to the cerebral ventricles and review the current literature. We also propose two mechanisms for this phenomenon.

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