石油钻探技术
石油鑽探技術
석유찬탐기술
PETROLEUM DRILLING TECHNIQUES
2014年
1期
55-60
,共6页
防塌钻井液%泥岩%井塌%抑制剂%降滤失剂%吉林油田
防塌鑽井液%泥巖%井塌%抑製劑%降濾失劑%吉林油田
방탑찬정액%니암%정탑%억제제%강려실제%길림유전
anti-sloughing drilling fluid%mud stone%hole caving%inhibitor%filtrate reducer%Jilin Oilfield
为解决吉林油田伊通、大安等区块软泥岩和硬脆性泥岩地层坍塌的问题，从聚胺盐与聚铝盐的抑制防塌机理出发，将两者复配，以发挥两者的协同效应提高钻井液的抑制防塌性能，结合吉林油田软泥岩和硬脆性泥岩地层钻井工程实际情况，通过试验优选其他添加剂及加量，优选出了具有强抑制性的聚铝胺盐防塌钻井液配方，其配方为2.0％钠基膨润土＋2.0％封堵剂聚铝盐 PAC 1＋3.0％抑制剂聚胺盐 HPA＋1.0％降滤失剂SMP 1＋1.5％降滤失剂APC 026＋2.0％抑制剂磺化沥青＋pH值调节剂NaOH。性能评价结果表明：强水敏泥岩在聚铝胺盐防塌钻井液中的一次回收率为75％、膨胀率为17.4％；聚铝胺盐防塌钻井液能抗15％ NaCl和1％ CaCl2污染，耐150℃高温。14口井的现场应用表明：聚铝胺盐防塌钻井液的抑制性和封堵能力强，能有效防止泥岩坍塌，解决了吉林油田伊通、大安等区块泥岩地层钻井过程中因井壁坍塌和缩径造成的掉块、起下钻遇阻等问题。
為解決吉林油田伊通、大安等區塊軟泥巖和硬脆性泥巖地層坍塌的問題，從聚胺鹽與聚鋁鹽的抑製防塌機理齣髮，將兩者複配，以髮揮兩者的協同效應提高鑽井液的抑製防塌性能，結閤吉林油田軟泥巖和硬脆性泥巖地層鑽井工程實際情況，通過試驗優選其他添加劑及加量，優選齣瞭具有彊抑製性的聚鋁胺鹽防塌鑽井液配方，其配方為2.0％鈉基膨潤土＋2.0％封堵劑聚鋁鹽 PAC 1＋3.0％抑製劑聚胺鹽 HPA＋1.0％降濾失劑SMP 1＋1.5％降濾失劑APC 026＋2.0％抑製劑磺化瀝青＋pH值調節劑NaOH。性能評價結果錶明：彊水敏泥巖在聚鋁胺鹽防塌鑽井液中的一次迴收率為75％、膨脹率為17.4％；聚鋁胺鹽防塌鑽井液能抗15％ NaCl和1％ CaCl2汙染，耐150℃高溫。14口井的現場應用錶明：聚鋁胺鹽防塌鑽井液的抑製性和封堵能力彊，能有效防止泥巖坍塌，解決瞭吉林油田伊通、大安等區塊泥巖地層鑽井過程中因井壁坍塌和縮徑造成的掉塊、起下鑽遇阻等問題。
위해결길림유전이통、대안등구괴연니암화경취성니암지층담탑적문제，종취알염여취려염적억제방탑궤리출발，장량자복배，이발휘량자적협동효응제고찬정액적억제방탑성능，결합길림유전연니암화경취성니암지층찬정공정실제정황，통과시험우선기타첨가제급가량，우선출료구유강억제성적취려알염방탑찬정액배방，기배방위2.0％납기팽윤토＋2.0％봉도제취려염 PAC 1＋3.0％억제제취알염 HPA＋1.0％강려실제SMP 1＋1.5％강려실제APC 026＋2.0％억제제광화력청＋pH치조절제NaOH。성능평개결과표명：강수민니암재취려알염방탑찬정액중적일차회수솔위75％、팽창솔위17.4％；취려알염방탑찬정액능항15％ NaCl화1％ CaCl2오염，내150℃고온。14구정적현장응용표명：취려알염방탑찬정액적억제성화봉도능력강，능유효방지니암담탑，해결료길림유전이통、대안등구괴니암지층찬정과정중인정벽담탑화축경조성적도괴、기하찬우조등문제。
To solve the problem of soft mudstone and hard brittle shale formation collapse in Yitong , Da’an blocks ,Jilin Oilfield ,polyamine salt and poly aluminum salt were compounded to give full play to their synergy effect in enhancing the inhibition anti-collapse performance of drilling fluid .According to the practice of soft rock and hard brittle shale formations drilling in Jilin Oilfield ,the other additives and their dosage were optimized through experiments ,ultimately the poly aluminum amine salt drilling fluid formula with strong inhibition was obtained :2.0% sodium base bentonite+ 2.0% blocking agent poly aluminum salt PAC 1+3.0% HPA inhibitors poly amine salt+1.0% fluid loss agent SMP 1+1.5% fluid loss agent APC 026+2.0% inhibitors sulfonated asphalt+ the pH regulator NaOH .Performance evaluation showed that :strong water-sensitive shale recovery was 75% ,and swelling rate was 17.4% in poly aluminum amine salt anti-collapse drilling fluid ;and the drilling fluid could tolerate 15% NaCl and 1% CaCl2 ,temperature up to 150 ℃ .Field application results showed that :the poly aluminum amine salts drilling fluid had strong inhibition and blocking ability and could effectively prevent the wellbore collapse when drilling through shale formation ,which solve sloughing ,drill string sticking ,and slacking due to wellbore collapse in shale formation drilling in the region .
