用于深部调剖的诱导式盐沉积体系实验研究  

Experimental Study on Salt Deposition System Induced by Organic Inducer for Deep Injection Profile Modification

作　　者：张婷 白金莲[2] 李静[3] 叶长青 彭杨 ZHANG Ting;BAI Jinlian;LI Jing;YE Changqing;PENG Yang(Engineering Technology Research Institute of PetroChina Southwest Oil and Gas Company,Chengdu 618300,China;Exploration and Development Research Institute,PetroChina Qinghai Oilfield Company,Dunhuang Gansu 736202,China;Technology Research of Central Sichuan Oil and Gasfield District,PetroChina Southwest Oil and gas Company,Suining Sichuan 629001,China)

机构地区：[1]中国石油西南油气田公司工程技术研究院,成都618300 [2]中国石油青海油田公司勘探开发研究院,甘肃敦煌736202 [3]中国石油西南油气田公司川中油气矿工艺研究所,四川遂宁629001

出　　处：《重庆科技学院学报（自然科学版）》2020年第6期47-50,56,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项“大型油气田及煤层气开发专题三——深层碳酸盐岩气藏高效开发技术”(2016ZX05015-003)。

摘　　要：采用诱导式盐沉积法,用蒸馏水及油田高盐注入水进行实验,研究盐、温度、压力等因素对诱导盐沉积体系的影响。研究结果表明:氯化钠是一种最有效的盐沉积主导体系,采出地层水与之复配时诱导剂的诱导结晶率可达73.1%;诱导剂最佳复配方案为醇胺质量比1∶1,此时诱导剂与盐溶液的有效比例范围为0.25~4.00,且复配后结晶呈絮凝状。温度会在一定程度上降低诱导效率,而压力则几乎对诱导效率没有影响;但是,加压可以改变晶形,增大结晶颗粒。Experiments are carried out by inducible salt deposition,distilled water and high salinity injection water,to study the effects of salt,temperature and pressure on induced salt deposition.The results show:sodium chloride is the most effective dominant system of the salt-precipitation,when it is mixed with stratum water its precipitation ratio can reach 73.1%.The best combination of inducer is alcohol amine mass ratio of 1∶1,and the effective ratio range of inducer to salt solution is 0.25-4.00.Furthermore,the crystallization after compounding is flocculation.At a certain extent the temperature may depress the precipitation rate,but the pressure hardly influence the precipitation rate but can affect its crystal form,augment the grain.

关 键 词：诱导式盐沉积 盐析 诱导剂 结晶率 深部调剖 

分 类 号：TE355[石油与天然气工程—油气田开发工程]