为解决高产水煤层气井难以有效降低储层压力的难题，需根据煤层高产水原因采取针对性措施进行煤层控水。通过对六盘水煤田古德井区高产水煤层气井从含煤性、孔渗性、含水性、构造、钻井、压裂、排采等七方面进行地质与工程研究，查找煤层气井高产水的具体原因，采取有效控水措施，实现煤层气井排水降压、解吸产气的目的。研究表明：古德井区多煤层发育，采取多煤层组段压裂、合层排采的方式，提高煤层气资源开发效率；古德井区地层含水性较弱，煤层孔渗性较差，地层出水性较弱，但断层构造相对较发育，增加断层破碎带含水、出水风险；煤层气井直接钻遇断层的概率较小，但压裂施工影响半径一般在100 m以上，易沟通井筒附近的断层破碎带，煤层气井高产水风险增加；古德井区煤层气井压裂施工沟通上部压裂段的断层破碎带导致高产水，可采取注水泥封堵的措施进行控水，控水作业后煤层气井产水量显著下降，产水降幅超过80%，储层实现有效降压。

In order to solve the problem that it is difficult to effectively reduce reservoir pressure in high-water-producing CBM wells, it is necessary to take targeted measures to control coal seam water according to the reasons for the high-water production of coal beds. Through geological and engineering research on high-yield water CBM wells in the Gude well area of Liupanshui coal field from seven aspects including coal contents, porosity, water content, structure, drilling, fracturingand drainage, etc., to find out the specific reasons for the high-yield water production of CBM wells, and to take effective water control measures to achieve the purpose of depressurization desorption and gas production of coalbed methane wells. The research shows that there are many coal seams in the Gude well area, and the methods of multi-coal seam group fracturing and combined seam drainage and production canimprove the development efficiency of coalbed methane resource；the water content of the formation in the Gude well area is weak, and the coal seam has poor porosity and permeability. The formation water production is weak, but the fault structure is relatively developed, which increases the risk of water content and water production in the fault fracture zone; the probability of the CBM well directly drilling into the fault is small, but the radius of influence of the fracturing construction is generally more than 100 m, which is easy to communicate with the nearby wellbore. The fault fracture zone increases the risk of high water production in coalbed methane wells;the fracturing construction of CBM wells in the Gude well area communicates with the fractured zone in the upper fracturing section, resulting in high water production. Cement injection and plugging measures can be taken to control water and the coal seam after the water control operation. The water production of gas wells has dropped significantly, and the water production has dropped by more than 80%, and the pressure of the reservoir has been effectively reduced. The research and engineering application provide technical guidance for water control, production and efficiency enhancement forhigh-yield CBM wells in fault-fractured zones.