عمليات التحميض للطبقات المنتجة للنفط الخام في ابار الانتاج البترولية == Acidification of Crude Petroleum Bearing Strata In Production Wells
Author name:
سيف عبد الحق عبد الستار
Supervisor name:
نجاة جمعة صالح
General topic:
Chemical Engineering
Specific topic:
Oil Refining and Gas Technology
Degree:
Higher Diploma
University:
University of Technology - Department Of Chemical Engineering - Chemical Engineering and Oil Refining Branch
Language:
English
University location:
Baghdad
First pages:
38T309 - p.pdf
Abstract:
تم في هذا البحث دراسة عملية التحميض بصورة عامة وتحميض طبقتي ( التنومة والخصيب) المنتجة ) ضمن حقول EB - 91 للنفط والواقعة ضمن حقول شرقي بغداد بصورة خاصة. وتم اعتماد البئر (.(Case Study ) شرق بغداد كـ نموذج تعتبر عملية تحميض الابار النفطية من العمليات ا | In this work, acidification process in general and in particular at Al - Tanuma and Khasib layers is studied. Al - Tanuma and Khasib layer's in well (EB - 91)are located in east of Baghdad oil field. That well was taken as a case study.Acidification process is important to increase productivity of old oil well, and new one. Before acidification a test was carried out with water. During the test water is injected in these two layers under high pressure. If the test is successful that means the two layers are able to absorbed the dilute acid. - At first acid concentration must be diluted for 30 % to 15 % by using water as dilutent. - Additives are added to the acid, these additives are : • Anti - corrosion (A1 - 48) 0.5%.• Anti - emulsifier (NE - 50) 0.5%.• Emulsifier (WFT - 9256) 0.5%.• Solvent (WMS - 121) 1%. - Acid and the additives were injected inside Al - Tanuma and Khasib layers under high pressure. - Displacement liquid (gas oil) was injected inside the two layers to remove the acid and let it enter the formation. - The well was closed for minimum (1) hour to complete the reaction of acid with well formations. - The well was opened.The crude oil, gas oil and remaining acid will elute from the well by the action of pressure. - The crude oil eluted from the well was transferred by fire pipes to burning hole, where it was burned for about (3 - 4) hours. - After burning process is completed the well is ready for production.
