钻井液与完井液
鑽井液與完井液
찬정액여완정액
DRILLING FLUID & COMPLETION FLUID
2009年
4期
26-28
,共3页
张欢庆%陈林%贺文廷%于松法%吕志强%刘毅%张春鹤%赵善波
張歡慶%陳林%賀文廷%于鬆法%呂誌彊%劉毅%張春鶴%趙善波
장환경%진림%하문정%우송법%려지강%류의%장춘학%조선파
水平井%高密度钻井液%饱和盐水钻井液%钻井液配方%流变性
水平井%高密度鑽井液%飽和鹽水鑽井液%鑽井液配方%流變性
수평정%고밀도찬정액%포화염수찬정액%찬정액배방%류변성
Horizontal well%High density drilling fluid%Saturated saltwater drilling fluid%Drilling fluid formulation%Rheology
KL2-H1井是西气东输2007年在克拉区块的一口水平井.该井三开段为高压盐膏层,四开段为白云岩高压气层;钻井液密度为2.00~2.25 g/cm<'3>,压井液密度为2.40 g/cm<'3>,使用混10%~15%原油基液,固相含量相对高,且容量限低,同时由于带POWVER或MWD定向工具钻进,只能使用重晶石加重,使得钻井液的流变性较差,现场施工困难.经过室内实验,研究出了一套适用于现场要求和用重晶石加重的流变性较好的高密度饱和盐水钻井液和压井液配方.现场应用表明,该钻井液的各项性能均能很好地满足钻进要求.
KL2-H1井是西氣東輸2007年在剋拉區塊的一口水平井.該井三開段為高壓鹽膏層,四開段為白雲巖高壓氣層;鑽井液密度為2.00~2.25 g/cm<'3>,壓井液密度為2.40 g/cm<'3>,使用混10%~15%原油基液,固相含量相對高,且容量限低,同時由于帶POWVER或MWD定嚮工具鑽進,隻能使用重晶石加重,使得鑽井液的流變性較差,現場施工睏難.經過室內實驗,研究齣瞭一套適用于現場要求和用重晶石加重的流變性較好的高密度飽和鹽水鑽井液和壓井液配方.現場應用錶明,該鑽井液的各項性能均能很好地滿足鑽進要求.
KL2-H1정시서기동수2007년재극랍구괴적일구수평정.해정삼개단위고압염고층,사개단위백운암고압기층;찬정액밀도위2.00~2.25 g/cm<'3>,압정액밀도위2.40 g/cm<'3>,사용혼10%~15%원유기액,고상함량상대고,차용량한저,동시유우대POWVER혹MWD정향공구찬진,지능사용중정석가중,사득찬정액적류변성교차,현장시공곤난.경과실내실험,연구출료일투괄용우현장요구화용중정석가중적류변성교호적고밀도포화염수찬정액화압정액배방.현장응용표명,해찬정액적각항성능균능흔호지만족찬진요구.
Well KL2-H1 is a horizontal well located in Block Kela for the West-East natural gas transmission project. The third interval of this well penetrated a high pressure salt/gypsum formation and the fourth penetrated a high pressure dolomitic gas bearing zone. The density of the saltwater drilling fluid used was 2.00~2.25 g/cm<'3>,weighted only with barite because of the use of POWVER/MWD in drilling operation, and the kill mud had a density of 2.40 g/cm<'3>. The mud also had 10%~5% oil mixed in it. Bad rheology of the mud made field operation very tough. The drilling fluid and kill mud were then changed to a high density saturated saltwater fluids that were weighted with barite. Laboratory experiment and field applica-tion results showed that the drilling fluid and the kill mud met the requirements of filed operation.