CAJ | 학술논문

针对苏里格气田东区的现实特征，紧紧围绕该区块低渗透气藏的储层特点，系统深入的研究了储层地质特征，建立了一套多层低渗气藏改造前动静态、宏观微观资料相结合的储层评估方法，初步形成多层低渗气藏压裂优化设计技术。客观分析了压裂改造的瓶颈技术问题，适时的完善了低渗气藏低伤害压裂液体系，该体系具有破胶彻底，对裂缝及储层的伤害低等优势，适合苏东易伤害储层。现场实施了50余口井，从施工情况来看，认为该技术的工艺设计应考虑羧甲基体系的特点，充分发挥该体系的低伤害优势，同时，现场质量精细控制是羧甲基体系顺利实施的有效保障。施工返排和压后试气效果表明，目前，羧甲基压裂液体系在苏里格气田东区试验效果较好，建议继续加大试验推广。
침대소리격기전동구적현실특정，긴긴위요해구괴저삼투기장적저층특점，계통심입적연구료저층지질특정，건립료일투다층저삼기장개조전동정태、굉관미관자료상결합적저층평고방법，초보형성다층저삼기장압렬우화설계기술。객관분석료압렬개조적병경기술문제，괄시적완선료저삼기장저상해압렬액체계，해체계구유파효철저，대렬봉급저층적상해저등우세，괄합소동역상해저층。현장실시료50여구정，종시공정황래간，인위해기술적공예설계응고필최갑기체계적특점，충분발휘해체계적저상해우세，동시，현장질량정세공제시최갑기체계순리실시적유효보장。시공반배화압후시기효과표명，목전，최갑기압렬액체계재소리격기전동구시험효과교호，건의계속가대시험추엄。
Sulige gas field for the Eastern District of realistic characteristics, this paper closely around the block characteristics of low permeability gas reservoirs, a systematic study of the geological characteristics of the reservoir, the establishment of a multi-permeability gas reservoir static and dynamic transformation of the former, the combination of macro and micro data of reservoir evaluation, the initial formation of multi-permeability gas reservoir fracturing design. Objective analysis of the technical problems of fracturing bottlenecks, timely and improved low-permeability gas reservoir damage fracturing fluid system, the sys- tem has completely broken plastic, cracks and formation damage on lower edge, easy to dam- age the reservoir for the Eastern District. On-site ers, from the construction point of view, that the implementation of the five wells in 13 lay- technology process design should consider the characteristics of carboxymethyl system, give full play to advantages of the system＇s low damage, while on-site quality control is fine carboxymethyl the smooth implementation of effective protection system. After the construction of backflow and pressure test gas results showed that, at present, carboxymethyl fracturing fluid system in Eastern Sulige gas field well test results, recommendations to increase the promotion test.