石油钻采工艺
石油鑽採工藝
석유찬채공예
OIL DRILLING & PRODUCTION TECHNOLOGY
2014年
6期
16-19
,共4页
苏53区块%致密砂岩%工厂化作业%钻机平移%同步压裂%连续混配
囌53區塊%緻密砂巖%工廠化作業%鑽機平移%同步壓裂%連續混配
소53구괴%치밀사암%공엄화작업%찬궤평이%동보압렬%련속혼배
Su 53 Block%tight sandstone%factory operation%rig translations%synchronous fracturing%continuous mixing
工厂化作业可以大大提高施工效率、降低施工成本，是目前开发致密气藏的主要趋势。在总结国内外成功经验的基础上，在进行充分的先导试验之后，优选了苏里格气田苏53区块进行工厂化作业实践：①200 m×300 m的大平台分两排共部署13口井，包括10口水平井、2口定向井和1口直井；②1部ZJ30车载钻机批量打表层，2部ZJ50机械钻机批量打直井段、造斜段和水平段；③采用“1+2+2”钻头模板和钻机平移技术，大大缩短了钻井周期；④分别采用段内多裂缝压裂和同步压裂技术对水平井进行体积改造，连续混配技术和速溶瓜胶压裂液体系的研制保证了同步压裂的成功实施。工厂化作业水平井钻井平均机械钻速11.5 m/h，比2012年提升了4.99 m/h，节约了大量接甩钻具和固井候凝时间，重复利用钻井液2100 m3；对13口井实施的工厂化压裂仅用时13 d，比常规单井压裂缩短了10 d。截止2014年3月15日，平台平均日产97.231×104 m3，累产10500.17×104 m3，其中同步压裂6口井平均单井日产9.873×104 m3，效果显著。
工廠化作業可以大大提高施工效率、降低施工成本，是目前開髮緻密氣藏的主要趨勢。在總結國內外成功經驗的基礎上，在進行充分的先導試驗之後，優選瞭囌裏格氣田囌53區塊進行工廠化作業實踐：①200 m×300 m的大平檯分兩排共部署13口井，包括10口水平井、2口定嚮井和1口直井；②1部ZJ30車載鑽機批量打錶層，2部ZJ50機械鑽機批量打直井段、造斜段和水平段；③採用“1+2+2”鑽頭模闆和鑽機平移技術，大大縮短瞭鑽井週期；④分彆採用段內多裂縫壓裂和同步壓裂技術對水平井進行體積改造，連續混配技術和速溶瓜膠壓裂液體繫的研製保證瞭同步壓裂的成功實施。工廠化作業水平井鑽井平均機械鑽速11.5 m/h，比2012年提升瞭4.99 m/h，節約瞭大量接甩鑽具和固井候凝時間，重複利用鑽井液2100 m3；對13口井實施的工廠化壓裂僅用時13 d，比常規單井壓裂縮短瞭10 d。截止2014年3月15日，平檯平均日產97.231×104 m3，纍產10500.17×104 m3，其中同步壓裂6口井平均單井日產9.873×104 m3，效果顯著。
공엄화작업가이대대제고시공효솔、강저시공성본，시목전개발치밀기장적주요추세。재총결국내외성공경험적기출상，재진행충분적선도시험지후，우선료소리격기전소53구괴진행공엄화작업실천：①200 m×300 m적대평태분량배공부서13구정，포괄10구수평정、2구정향정화1구직정；②1부ZJ30차재찬궤비량타표층，2부ZJ50궤계찬궤비량타직정단、조사단화수평단；③채용“1+2+2”찬두모판화찬궤평이기술，대대축단료찬정주기；④분별채용단내다렬봉압렬화동보압렬기술대수평정진행체적개조，련속혼배기술화속용과효압렬액체계적연제보증료동보압렬적성공실시。공엄화작업수평정찬정평균궤계찬속11.5 m/h，비2012년제승료4.99 m/h，절약료대량접솔찬구화고정후응시간，중복이용찬정액2100 m3；대13구정실시적공엄화압렬부용시13 d，비상규단정압렬축단료10 d。절지2014년3월15일，평태평균일산97.231×104 m3，루산10500.17×104 m3，기중동보압렬6구정평균단정일산9.873×104 m3，효과현저。
Factory operation can greatly improve the job efifciency and reduce operation costs and is the main trend in the develop-ment of tight gas reservoir. Based on successful experiences both from home and abroad and after sufifcient pilot tests, the Su 53 Block of Sulige Gasifeld was chosen for this factory operation practice:(1) altogether 13 wells are planned on two sides of a 200 m×300 m large platform, including 10 horizontal wells, 2 directional wells and one straight well; (2) one ZJ30 truck-mounted rig was used to drill surface layers in batches and two ZJ50 mechanical rigs were used to drill the straight hole, building up section and horizontal section in batches; (3) using the ‘1+2+2’ drill bit formwork and rig translation technique, the drilling period has greatly shortened; (4) the in-stage multi-ifssure fracturing and synchronous fracturing techniques were used respectively to realize volume transformation to the horizontal well, and the development of continuous mixing technique and instant guar fracturing lfuid system ensured the successful implementa-tion of synchronous fracturing. The result shows that the average penetration rate in horizontal well was 11.5 m/h, up by 4.99 m/h com-pared with that in 2012, saving a lot of time of picking up and laying down the tools and cement freeze waiting, and 2 100 m3 drilling lfuid was repeatedly used. The factory fracturing of 13 wells only took 13 days, 10 days less than conventional single well fracturing. By March 15, 2014, the average daily production of the platform was 97.231×104m3, and its cumulative production was 10 500.17×104m3, of which the average daily production of single well of the six wells was 9.873×104m3, producing remarkable effect.
