CAJ | 학술논문

连续油管定点喷砂射孔多层环空加砂压裂是喷砂射孔和环空压裂的一体化工艺，一趟管柱可以实现多层射孔压裂，适用于致密油气藏、页岩油气藏等非常规油气藏，特别是多层、薄层油气藏进行有效准确定位射孔压裂施工。针对新疆油田某些区块的低压、低产、低渗的特点，研制了一套用于连续油管定点喷砂射孔多层环空加砂压裂的工艺管柱，并对关键零部件进行了有限元计算。试验表明，该技术降低了射孔和压裂施工风险，施工周期短、定位射孔准确、施工后井筒清洁，可以直接下入生产管柱进行生产。为低压、低产、低渗提供了高效安全的施工方法。
련속유관정점분사사공다층배공가사압렬시분사사공화배공압렬적일체화공예，일쟁관주가이실현다층사공압렬，괄용우치밀유기장、혈암유기장등비상규유기장，특별시다층、박층유기장진행유효준학정위사공압렬시공。침대신강유전모사구괴적저압、저산、저삼적특점，연제료일투용우련속유관정점분사사공다층배공가사압렬적공예관주，병대관건령부건진행료유한원계산。시험표명，해기술강저료사공화압렬시공풍험，시공주기단、정위사공준학、시공후정통청길，가이직접하입생산관주진행생산。위저압、저산、저삼제공료고효안전적시공방법。
The coiled tubing fixed-point abrasive perforating and multilayer annulus add-sand frac-turing process are the technology of integrating perforating and fracturing,a tubular column can realize the purpose of multi-layer perforation and fracturing one time,and it implements the explo-ration and development of oil and gas reservoirs such as dense reservoirs,shale reservoirs.It is particularly effective for accurate positioning perforation fracturing of multilayer and thin layer. For some Xinjiang oilfield block with low pressure,low productive and low permeability,a set of tool string used in coiled tubing fixed-point abrasive perforating and multilayer annulus add-sand fracturing was designed,and the parameters of key components and parts were calculated.Test showed that the technology reduced the risk of perforating and fracturing operation,shorten oper-ation cycle,and positioning accurately,and the wellbore was clean after construction.Thus,it pro-vided an efficient and safe method for low pressure,low productivity,and low permeability reservoirs.