石油钻采工艺
石油鑽採工藝
석유찬채공예
OIL DRILLING & PRODUCTION TECHNOLOGY
2013年
5期
52-55
,共4页
郑国生%朱礼平%李群生%周仕明
鄭國生%硃禮平%李群生%週仕明
정국생%주례평%리군생%주사명
低渗透气藏%水平井%固井%塑性膨胀水泥浆%防气窜
低滲透氣藏%水平井%固井%塑性膨脹水泥漿%防氣竄
저삼투기장%수평정%고정%소성팽창수니장%방기찬
low permeability gas reservoir%horizontal well%cementing%plastic expansion cement%gas channeling control
川西高压低渗水平井需压裂完井后投产,对固井水泥浆性能提出了更高的要求。结合川西水平井固井技术需求,通过室内实验优选了膨胀剂、防气窜剂、稳定剂和增塑剂,确定了塑性膨胀防气窜水泥浆体系配方。室内评价结果表明,该体系具有API失水小于30 mL、自由液0 mL、SPN值小于3等性能。XS21-3H等多口水平井油层固井中的成功应用表明,该体系可以满足后期分段压裂投产施工要求。
川西高壓低滲水平井需壓裂完井後投產,對固井水泥漿性能提齣瞭更高的要求。結閤川西水平井固井技術需求,通過室內實驗優選瞭膨脹劑、防氣竄劑、穩定劑和增塑劑,確定瞭塑性膨脹防氣竄水泥漿體繫配方。室內評價結果錶明,該體繫具有API失水小于30 mL、自由液0 mL、SPN值小于3等性能。XS21-3H等多口水平井油層固井中的成功應用錶明,該體繫可以滿足後期分段壓裂投產施工要求。
천서고압저삼수평정수압렬완정후투산,대고정수니장성능제출료경고적요구。결합천서수평정고정기술수구,통과실내실험우선료팽창제、방기찬제、은정제화증소제,학정료소성팽창방기찬수니장체계배방。실내평개결과표명,해체계구유API실수소우30 mL、자유액0 mL、SPN치소우3등성능。XS21-3H등다구수평정유층고정중적성공응용표명,해체계가이만족후기분단압렬투산시공요구。
The horizontal wells with high pressure and low permeability need fracturing operation before being on production in West Sichuan, which puts forward higher requirements on the performance of cement slurry. The expansive agent, anti-channeling agent, stabilizer and plasticizer have been optimized and selected through indoor experiment, and a plastic expansion anti-channeling cement slurry system has been formed. The results of the laboratory show that the system has some features like API lfuid loss less than 30mL, free liquid equal to 0mL, and SPN value less than 3. It has been successfully used in oil zone cementing on many horizontal wells such as XS21-3H, and satisifes the later staged fracturing production requirements.