石油勘探与开发
石油勘探與開髮
석유감탐여개발
PETROLEUM EXPLORATION AND DEVELOPMENT
2001年
2期
70-72
,共3页
垦西油田%试井%声阻抗%反演%数值模拟%井网密度%地层压力%采油速率
墾西油田%試井%聲阻抗%反縯%數值模擬%井網密度%地層壓力%採油速率
은서유전%시정%성조항%반연%수치모의%정망밀도%지층압력%채유속솔
垦西斜坡带垦622井区沙三中油层是一个构造岩性复合油藏，地质条件比较复杂，影响油田开发的因素较多，开发难度较大。为了进行合理、高效开发，针对其油藏特点充分应用波阻抗反演等新技术追踪描述砂体；借助现代试井手段研究油藏的特征；利用数值模拟技术开展了经济合理的井网密度、最佳的地层压力保持水平、注水方式选择和初期采油速率优化等机理研究。开发方案在现场实施后，取得了理想效果，所部署的8口开发井均达到了设计目的，实际钻遇砂体厚度与预测砂体厚度相比，平均误差仅为6%；开发方案实施一年来，井区平均日产油水平225t，实际生产结果与开发技术研究结果吻合程度较高，经济效益显著。可为今后同类岩性油气藏的开发提供参考。图3表1参3(毕秋军摘)
墾西斜坡帶墾622井區沙三中油層是一箇構造巖性複閤油藏，地質條件比較複雜，影響油田開髮的因素較多，開髮難度較大。為瞭進行閤理、高效開髮，針對其油藏特點充分應用波阻抗反縯等新技術追蹤描述砂體；藉助現代試井手段研究油藏的特徵；利用數值模擬技術開展瞭經濟閤理的井網密度、最佳的地層壓力保持水平、註水方式選擇和初期採油速率優化等機理研究。開髮方案在現場實施後，取得瞭理想效果，所部署的8口開髮井均達到瞭設計目的，實際鑽遇砂體厚度與預測砂體厚度相比，平均誤差僅為6%；開髮方案實施一年來，井區平均日產油水平225t，實際生產結果與開髮技術研究結果吻閤程度較高，經濟效益顯著。可為今後同類巖性油氣藏的開髮提供參攷。圖3錶1參3(畢鞦軍摘)
은서사파대은622정구사삼중유층시일개구조암성복합유장，지질조건비교복잡，영향유전개발적인소교다，개발난도교대。위료진행합리、고효개발，침대기유장특점충분응용파조항반연등신기술추종묘술사체；차조현대시정수단연구유장적특정；이용수치모의기술개전료경제합리적정망밀도、최가적지층압력보지수평、주수방식선택화초기채유속솔우화등궤리연구。개발방안재현장실시후，취득료이상효과，소부서적8구개발정균체도료설계목적，실제찬우사체후도여예측사체후도상비，평균오차부위6%；개발방안실시일년래，정구평균일산유수평225t，실제생산결과여개발기술연구결과문합정도교고，경제효익현저。가위금후동류암성유기장적개발제공삼고。도3표1삼3(필추군적)
The central Es3 oil reservoir in Wellblock Ken-622, Kenxi Slope area, is a lithologico-structural composite reservoir that is rather complicated in geologic conditions, which is much difficult to be exploited for many factors constrained. In order to exploit it rationally and reasonably, the authors take advantages of the technology of wave impedance inversion, modern method of well testing and numerical simulation to trace and describe sandbody, reason out the characteristics of oil reservoir and perform research of economic and reasonable well pattern arrangement, suitable maintaining level of formation pressure, selection of water injection and optimization of initial oil production rate etc. The technology the authors mentioned in this paper would help the engineers to make scientific policy decision in development program design. After this method being carried out in practical field trial, there appear somewhat perfect effects-each development well of total 8 reaches its design requirement without exception, and compared with the predictive thickness of sandbody, the average thickness error would be 6%. Remarkable economic benefit has been achieved since this development program was put into effect one year ago, the real production results very much tallies with that from research, now the daily oil production of the wellblock has been reached 255t/d, which shows that it can be considered as a reference for developing similar lithologic oil reservoirs.
