石油化工应用
石油化工應用
석유화공응용
PETROCHEMICAL INDUSTRY APPLICATION
2011年
12期
38-42
,共5页
达引朋%任雁鹏%杨博丽%郭亮%王玉功%蒋文学
達引朋%任雁鵬%楊博麗%郭亮%王玉功%蔣文學
체인붕%임안붕%양박려%곽량%왕옥공%장문학
低渗透%中高含水期%裂缝%提高单井产量%方法
低滲透%中高含水期%裂縫%提高單井產量%方法
저삼투%중고함수기%렬봉%제고단정산량%방법
low permeability%mid-high water-cut period%increase of single well production%method
长庆油田储层属于典型的低渗透,需要注水进行开发,随着开发时间的延长,部分区块进入开发中后期,油井含水不断上升,给油井增产改造带来了很大困难。本文通过对长庆低渗透储层特征、开发现状、见水原因分析的基础上,通过室内研究,形成了注水井深部调剖、油井堵水、堵水压裂、裂缝深部暂堵酸化等中高含水油井提高单井产量技术。目前在现场应用61口井,取得了较好的措施效果,为长庆油田低渗透储层中高含水油井提高单井量进行了有力探索。
長慶油田儲層屬于典型的低滲透,需要註水進行開髮,隨著開髮時間的延長,部分區塊進入開髮中後期,油井含水不斷上升,給油井增產改造帶來瞭很大睏難。本文通過對長慶低滲透儲層特徵、開髮現狀、見水原因分析的基礎上,通過室內研究,形成瞭註水井深部調剖、油井堵水、堵水壓裂、裂縫深部暫堵痠化等中高含水油井提高單井產量技術。目前在現場應用61口井,取得瞭較好的措施效果,為長慶油田低滲透儲層中高含水油井提高單井量進行瞭有力探索。
장경유전저층속우전형적저삼투,수요주수진행개발,수착개발시간적연장,부분구괴진입개발중후기,유정함수불단상승,급유정증산개조대래료흔대곤난。본문통과대장경저삼투저층특정、개발현상、견수원인분석적기출상,통과실내연구,형성료주수정심부조부、유정도수、도수압렬、렬봉심부잠도산화등중고함수유정제고단정산량기술。목전재현장응용61구정,취득료교호적조시효과,위장경유전저삼투저층중고함수유정제고단정량진행료유력탐색。
Reservoirs in Changqing Oilfield typically belongs to those with low permeability, which entails water injection for the development.Along with the extension of development, some blocks have entered into the mid -late period of the development,with gradual increase of water-cut,which brings enormous difficulties for the stimulation of producers. This paper,on the basis of reservoir features of lower permeability,current status of development and reasons of water breakthrough in Changqing Oilfield,comes up with technologies to improve production of single well with mid-high water-cut,such as profile adjustment in deep formation in injectors,water shutoff in oil producers,water shutoff and fracturing and temporary shutoff and acidizing in deep part of fractures.Currently,these technologies have been applied in 61 wells,with effective results obtained,which is a great breakthrough in increasing production of single well with mid-high water-cut in Changqing Oilfield where reservoirs are featuring low permeability.
