石油化工应用
石油化工應用
석유화공응용
PETROCHEMICAL INDUSTRY APPLICATION
2012年
5期
28-33
,共6页
水平井%分段压裂%低渗透%水力喷射压裂%裸眼封隔器
水平井%分段壓裂%低滲透%水力噴射壓裂%裸眼封隔器
수평정%분단압렬%저삼투%수력분사압렬%라안봉격기
horizontal well%multi -stage fracturing%low -permeability%hydrojet fracturing%open hole packer
水平井目前已成为提高油气田勘探开发综合效益的重要途径，但是有时低压低渗透油气藏水平井的单井产量也达不到经济开发的要求，这就必然面临着储层改造的问题。水平井分段压裂技术扭转了低渗透油气田多井低产的开发方式，实现了少井高产。长北项目至2011年11月共完钻29口双分支水平井，一期和二期开发的水平井产量高，可以满足经济开发的要求，三期开发的水平井砂岩钻遇难度大、投资比较高、单井产量较低；为此有必要探索改进开发方案，加强对水平井进行分段压裂的研究。为此总结了水平井分段压裂的发展概况、水平井分段压裂常用方法，结合长庆油田苏里格气田近年来水平井分段压裂的经验，分析认为水力喷砂射孔压裂方法和裸眼封隔器加投球滑套压裂方法比较适合长北气田。
水平井目前已成為提高油氣田勘探開髮綜閤效益的重要途徑，但是有時低壓低滲透油氣藏水平井的單井產量也達不到經濟開髮的要求，這就必然麵臨著儲層改造的問題。水平井分段壓裂技術扭轉瞭低滲透油氣田多井低產的開髮方式，實現瞭少井高產。長北項目至2011年11月共完鑽29口雙分支水平井，一期和二期開髮的水平井產量高，可以滿足經濟開髮的要求，三期開髮的水平井砂巖鑽遇難度大、投資比較高、單井產量較低；為此有必要探索改進開髮方案，加彊對水平井進行分段壓裂的研究。為此總結瞭水平井分段壓裂的髮展概況、水平井分段壓裂常用方法，結閤長慶油田囌裏格氣田近年來水平井分段壓裂的經驗，分析認為水力噴砂射孔壓裂方法和裸眼封隔器加投毬滑套壓裂方法比較適閤長北氣田。
수평정목전이성위제고유기전감탐개발종합효익적중요도경，단시유시저압저삼투유기장수평정적단정산량야체불도경제개발적요구，저취필연면림착저층개조적문제。수평정분단압렬기술뉴전료저삼투유기전다정저산적개발방식，실현료소정고산。장북항목지2011년11월공완찬29구쌍분지수평정，일기화이기개발적수평정산량고，가이만족경제개발적요구，삼기개발적수평정사암찬우난도대、투자비교고、단정산량교저；위차유필요탐색개진개발방안，가강대수평정진행분단압렬적연구。위차총결료수평정분단압렬적발전개황、수평정분단압렬상용방법，결합장경유전소리격기전근년래수평정분단압렬적경험，분석인위수력분사사공압렬방법화라안봉격기가투구활투압렬방법비교괄합장북기전。
Horizontal wells have gradually been used as one of the main methods to improve oil and gas field developing efficiency; But for those horizontal wells drilled in low pressure and low-permeability reservoir or those have lower production than economic limit, stimula- tion operations are necessary. Horizontal well multiple fracturing plays an important role in turning the scale of low productivity with multiple wells in low permeability gas reservoirs, changing the development mode, and achieving a higher yield with fewer well. To november 2011, there were completed 29 wells which the dual laterals Horizontal Well in Changbei project. Phase Ⅰ and Ⅱ wells have high production that can meet the requirements of eco- nomic development, the phase Ⅲ wells are difficult to drilling, large Investment, individual well producing rate lower than phase I and Ⅱ wells. It is necessary to find the new devel- opment method, intensify horizontal well multiple stage fracture research. So summarize hor- izontal well multiple fracturing general situation of development, horizontal well multiple fracturing type and process and on the basis of Sulige gas oilfield horizontal well multiplefracturing experience, consider Hydraulic Sandblasting Perforation fracture and open hole packer with sliding sleeve drop ball fracturing type are suitable for changbei gas oilfield.
