复杂断块油藏立体开发钻井完井优化技术
第32卷第6期2010年11月
石 油 钻 采 工 艺
OIL DRILLING & PRODUCTION TECHNOLOGY
Vol. 32 No. 6
Nov. 2010
文章编号：1000 – 7393（2010 ）06 – 0038 – 04
复杂断块油藏立体开发钻井完井优化技术
张宏军1 杨立明2
（1.胜利石油管理局黄河钻井固井公司，山东东营 257064；2胜利油田东辛采油厂地质所，山东东营 257000）
摘要：复杂小断块储量小，利用常规技术开发，采收率低，经济效益差，需要进行立体开发。胜利油田Y3-1断块区，含油面积1.5 k m2，地质储量719.5×104t。断块小、油层多、非均质强、油水关系复杂，将跨断层水平井、绕锥水平井、跨断块多靶点复杂结构井与完井固井方式及开采技术相结合，立体优化，提高采收率。在完井固井方面采取了一些综合措施，提高了一、二界面的水泥胶结质量，满足了立体开发的要求。
关键词：复杂断块；立体开发；钻井完井；优化
中图分类号：TE22 文献标识码：A
Drilling and completion optimization technology in complex fault-block reservoir with
tridimensional development
ZHANG Hongjun1, YANG Liming2
（1. Huanghe Drilling and Cementing Company of CNPC Shengli Petroleum, Dongying 257064, China;
2. Institute of Geology of CNPC Shengli Petroleum Dongxin Production Brigade, Dongying 257000, China）
Abstract: Due to the low reserves of the complex small fault-block reservoir, the recovery ratio and economic benefit is very low in using of traditional technology. So the complex small fault-block reservoir should be developed in tridimensional pattern. Y3-1 Fault blocks in Shengli Oilfield, with oil-bearing area 15 km2, and geologic reserve 719.5×104 t, has disadvantages of small fault blocks, many oil layers, severe nonhomogeneity and complex oil-water relationship. Basing on the combination between crossing fault horizontal well surrounding water cone horizontal well, crossing fault block multiple target point complex wells and well completion with cementing pattern and develop technology, tridimensional optimization, the recovery can be improved. Comprehensive measures in well comple-tion and cementing were adopted to meet the requirement of tridimensional development by increasing the cement bonding quality of the first interface and second interface.
Key words: complex fault-block; tridimensional development; drilling and completion; optimization
复杂断块油藏立体开发是针对断裂系统复杂、断块小、油层多、非均质强、油水关系复杂的地质体，在精细油藏描述和剩余油分布研究基础上，实现层系、井网的立体优化，最大程度地提高水驱控制和动用程度，达到大幅度提高采收率和经济效益的目的，复杂断块油藏立体开发就是要做好层系、井网、井型、钻井完井及采油工艺的立体优化，而完井固井是一个非常重要的环节。1 地质情况
Geological condition
Y3-1断块含油面积1.5 k m2，地质储量720×104t，断块区构造破碎，断裂极其发育，断层组系多、断层交切关系复杂，断层级别多、级差大，总体上受永3二级大断层控制，断块内部又发育2条规模较大的断层，将断块切割为4个台阶，内部由15条小
华东）石油工程专业，现为副经理，高级工程师。电话：0546-8721241。