辽河油田难采储量开采技术发展状况及应用精编

辽河油田难采储量开采技术发展状况及应用精

编

Document number：WTT-LKK-GBB-08921-EIGG-22986

辽河油区难采储量开采技术发展状况及应用

王旭贾海燕

（辽河石油勘探局工程技术研究院辽宁盘锦 124010）

摘要：随着辽河油区勘探开发程度的不断加深，难采、难动

用区块的开发已成为油田稳产中不容忽视的问题，实际情况

表明，这些难采区块分别存在着高凝、低渗、出砂、海上稠

油开采等技术困难，具有低产能、投资高、风险大的特点。

经过多年的持续技术攻关和实践，辽河油区目前已经陆续开

发了侧钻井、水平井、分支井等特殊工艺井钻完井技术及配

套技术，广泛应用于超稠油油藏、低渗透油藏、薄层稠油油

藏开发，极大提高了难采储量动用程度，降低吨油生产成

本，取得良好的效果。此外，在油井增油技术方面也取得突破，防砂、高温调剖、找堵水、气体采油技术等都进一步完

善和应用。本文重点介绍了特殊工艺井技术和油井增油技术

在难采油藏开发中的发展状况及应用，希望对其它油区类似

油藏的开发起到借鉴作用。

关键词：辽河油区；难采储量；特殊工艺井；油井增产技

术；应用

中图分类号：TE353 文献标识码：A

Developments and Applications of Oil Production Technology for Difficult-to-Produce Reserve in Liaohe

Oilfield

Wang Xu, Jia Haiyan

(Engineering Technical Research Institute of Liaohe Petroleum Exploration Bureau, Liaoning , Panjin, 124010, China)

Abstract: The development of Liaohe oilfield has come

into mid-late period, troubles of sustainning production appear gradually obvious. For this reason,the studies concerning the effective and economic oil production technology for difficult-to-produce reserve are gradual emphasized. As compared with the conventional reserve, difficult-to-produce reserve has high pour-point, low permeability, sand inflow, offshore heavy oil, etc, so

its production always leads to low yield, high cost,

high risk. In resent years, complicated structural wells, including side-tracking wells, horizontal wells, branched wells, etc., have been studied and developed in Liaohe oilfield. Through the application of these

complicated structural wells in super heavy oil reservoir, low permeability reservoir, thin heavy reservoir, a very good result was obtained, improving

oil recovery effectively, reducing running cost per ton. In addition, some stimulation treatment technologies have also been developed and adopted, such as sand control, high temperature injection profile modification, water finding and block off, oil production by using gases. In this paper, the developments and applications

of the complicated structural wells and the stimulation treatment technologies for difficult-to-produce reserve are presented, and these research results will have some effects on the production of other similar difficult-to-produce reserve.

Keywords: Liaohe oilfield; difficult-to-produce reserve; complicated structural wells; stimulation treatment technologies;application

引言

辽河油区油气勘探开发的区域包括辽河盆地陆上、辽河

滩海和外围盆地三部分，是一个地质条件十分复杂的复式油

气区，勘探开发进入中后期以来，后备资源日渐匮乏，难采

储量开发成为当务之急。“九五”“十五”期间，针对难

采储量油藏特点，辽河油区广泛调研与引进国内外先进钻采

技术，通过自身研发、试验形成了一系列集钻井、完井、采

油等相配套的技术，提高了辽河油区难采储量的开发水平，

为油田稳产提供了有力的技术支持。

作者简介：王旭（1962-），男，教授级高级工程师，在

读博士，现从事油藏地质研究和管理工作。

1 辽河油区难采储量基本概况

从勘探开发区域上看，辽河油区陆上动用程度最高，外

围次之，最低的是滩海，目前动用程度较低的难采区块主要

是超稠油、深层普通稠油和浅层高凝油，其中相当大一部分

是由于技术经济等因素制约难以实现有效开发，形成未动用

难采储量，具有“低、深、难、稠、小”的特点。截至2004年底，累积探明37个油田，探明含油面积1080.82km2，石油

地质储量224263104t，已探明未动用含油面积381.64 km2，石油地质储量48549104t，在已探明未动用储量中大部分为难采