State of the art review of coring and core analysis technology مراجعة حديثة لتكنولوجيا جمع العينات وتحليلها

Abstract

الهدف الرئيسي من تحليل العينات الصخرية في تقويم المكامن البترولية وتحديد خواصها البتروفيزيقية بدقة عالية لذلك، من الضروري، دمج برامج تحليل العينات مع البرامج المتعددة خلال مراحل نمو المكامن البترولية من الطبيعي أن تعتبر الدقة في جمع العينات الصخرية وفي تقنيات تحليل تلك العينات من المهام الرئيسية للعالمين في حقل تقويم المكامن ذات الطبيعة المعقدة يستعرض هذا البحث أحدث التقنيات في مجال تحليل العينات الصخرية وكذلك كيفية التأكد من جودة الطرق المستخدمة في تحليل العينات وكفاءتها وقدم البحث الاتجاهات الحديثة التي تحكم التطور التكنولوجي المستقبلي في مجال تحليل العينات

The main goal of core analysis is to reduce uncertainty in reservoir evaluation by providing data representative of the reservoir at insitu conditions Basic core analysis measurements are unchanged but advances in core analysis techniques provide the ability to measure the required petrophysical properties at reservoir conditions and to acquire also simultaneous measurements of reservoir dependent parameters Core analysis has to be integrated with field and production data to minimize reservoir uncertainties that cannot be addressed with other data sources such as well logging well testing or seismic These requirements define the coring objectives core handling and core analysis scheme These objectives cannot be achieved by coring a single well Coring program is thus an integral part of the reservoir history cycle The quality and reliability of core analysis data have become more important with the everincreasing pressing pressures to optimize field development the posteighties economics of the petroleum industry expressed as a need for ever more cost effective technology combined with the need to evaluate thin bed and nonconventional reservoir by means of vertical and horizontal wells serve as both the controlling factor and driving force respectively behind the development of new techniques of coring and core analysis This paper provides an overview of recent and emerging developments and trends in coring technology and core analysis This is to enhance the reservoir evaluation processes The questions of quality control and quality assurance are discussed that aim at an early detection of systematic challenges in data products particularly those with a danger of causing quality reduction Finally the main challenges in core analysis and recent trends affecting future tool developments will be discussed