According to this situation, put forward an innovative technology that gel breaking before solidification treatment.
针对鄂尔多斯气田完钻井井场混合液采用常规固化方法处理后,固化产物浸出液中污染物难以达标,特别是色度和COD超标严重的实际情况,提出了先破胶处理后再进行固化的工艺。
According to this situation, an innovative technology with gel breaking before solidification treatment was proposed.
针对塔里木油田废钻井液采用常规固化方法固化处理后,固化产物浸出液中污染物难以达标,特别是色度和COD超标严重的实际情况,提出了先破胶处理后再进行固化的工艺。
The research progress of fracturing fluid gel breaking techniques and fracturing fluids for the oil and gas wells in low temperature and shallow reservoirs in recent years is reviewed.
概述了近几年国内外在低温浅层油气井破胶技术及压裂液的研究进展,对氧化-还原破胶体系、耐高pH值酶破胶体系、水解生酸破胶体系、胶囊破胶剂及自生热压裂液、黏弹性表面活性剂压裂液的低温破胶原理、特性以及现场应用作了介绍,并对今后的发展方向进行了展望。
In order to solve the problem of gel-breaking of the fracturing fluid at low temperature for oil and gas wells,preparation of the oxalic acid microcapsule used as the catalyst of the chemical heat-generating gel-breaking system of the fracturing fluid Is studied.
针对低温油气井压裂液存在低温破胶难的问题,研究了化学生热破胶体系催化剂草酸微胶囊的制备。
The system has strong ability of increasing viscosity, good prop-carrying capacity, low frictional resistance, less residue after gel-breaking and so on.
HPAM/Cr3+冻胶压裂液是一种报道较少的压裂液体系,该压裂液具有增粘能力强、携砂性好、摩阻低、冻胶水化破胶后残渣少等优点。
Due to the low temperature of shallow reservoir in Penglaizhen Formation in west Sichuan basin, incomplete gelout of fracturing fluids can easily occur and cause proppant flowback during the fracturing fluids flowing back.
川西浅层蓬莱镇组气藏地层温度低,容易出现压裂液破胶不彻底的情况,压后排液时常常导致支撑剂的回流返吐。
The results show that at certain temperature,the dose of the thickener in the fracturing fluid,the pH value of the system and the type and dose of gel breaker all have the influences on the gel-breaking of the fracturing fluid in different degrees.
实验发现:在破胶温度一定的情况下,压裂液中的增稠剂加量、体系pH值和不同类型的破胶剂及其加量等对压裂液的破胶均会产生不同程度的影响。
When a well drilling job is completed,the residual gelled PRD polymer drilling-in fluid in the bottom must be treated by a proper gel breaker(GB) to prevent from reservoir formation damage.
本文报道低温破胶剂JPC的实验研究结果。
A mud cake cleaning fluid, ZXW1, and a recombination gel breaker, ZJB, are synthesized in lab.
针对用合成基钻井液钻井后用水基完井液完井时储层渗透率下降的问题,进行了合成基钻井液泥饼清洗剂优选和破胶剂对用清洗剂清洗过的岩心渗透率影响的室内实验,结果表明,15%ZXW1清洗剂能使合成基钻井液在滤纸上泥饼渗透率提高127。