The Reserch Of Reserve Estimation Of K₁q⁴ In Rang41 Block In Jilin Oilfield

Since the three oil companies listed,according to company requirements,Jilin oil field was asked to reserves assessment and report every year.The SEC reserves evaluation method is different from the traditional method of reserves evaluation in our country,for this to make 41 block for the SEC reserves evaluation research,hope it can help for Jilin oilfield SEC self assessment as reference.According to the geological characteristics of Rang 41 blocks in Jilin oilfield,start from basic geological research,this paper make full use of seismic data and drilling data,work on the detailed analysis of the reservoir and make careful study of characteristics of structure,sedimentary and reservoir and oil reservoir in 41 block.By the rules of the SEC oil and gas reserves standard,according to the actual circumstance of oil reservoir for the division of the reservoir to Rang41 block.According to the characteristics of the earthquake,deposition and structure,combining production location to confirm oil-bearing area of Rang41 block.By using four natures comparative analysis and log response main factors analysis,Combined with information of formation testing,coring,logging,experiment,oil reservoirs,etc,to make research of Oil and water layer identification and confirm effective thickness of Rang 41 block legitimately.By using core calibration logging technology,make Rang 41 block porosity interpretation model is established.By using saturation plate method and analogy method confirm saturation of Rang41 block.Using volumetric method confirm geological reserves of Rang41 block.Synthesize using the analogous reservoir and reliable technology of the SEC rules and dynamic method confirm recovery ratio of Rang41 to calculate recoverable reserves.By using discounted cash flow method make study for economic limit of Rang41 block,finally confirmed the SEC proved reserves of Rang41 block.