Oil-based drilling cuttings residues (ODCRs) can be used as subgrade materials for well site construction. It not only reduces the cost of shale gas development, but also solves the practical problems encountered in shale gas development. The results show that ODCRs contained many carcinogenic pollutants, such as As, Benzo anthracene (a), Benzo pyrene (a), Dibenzo anthracene (a, h). ODCRs have some environmental risks. However, the main mineral components and radioactive strength of ODCRs meets the requirements of Class A materials, which can be used for building materials. The experimental results show that the unconfined compressive strength of ODCRs subgrade materials increases with the increase of cement content. The unconfined compressive strength and compactness first increase and then decrease with the increase of ODCRs content. The optimal content of cement is 4%, and the optimal content of ODCRs is 60%. In addition, ODCRs have pozzolanic characteristics. Active SiO₂ and Al₂O₃ in ODCRs can react with Ca(OH)₂ to produce a certain amount of gel materials, such as ettringite (AFt) and gel hydrated calcium silicate (C–S–H). These gel materials can form a network structure to encapsulate heavy metals and macromolecular organic matters. So, no organic pollutants and some heavy metals are detected in the leaching solution of subgrade materials with 60% ODCRs, and there will be no secondary pollution to the external environment.

油基钻屑残留物 (ODCR) 可用作井场建设的路基材料。不仅降低了页岩气开发成本，而且解决了页岩气开发中遇到的实际问题。结果表明ODCRs中含有As、苯并蒽(a)、苯并芘(a)、二苯并蒽(a、h)等多种致癌污染物。ODCRs 有一些环境风险。但ODCRs的主要矿物成分和放射性强度符合A级材料的要求，可用于建筑材料。试验结果表明，ODCRs路基材料的无侧限抗压强度随着水泥掺量的增加而增加。无侧限抗压强度和密实度随着ODCRs含量的增加先增大后减小。水泥的最佳含量为4%，ODCRs的最佳含量为60%。此外，ODCR 具有火山灰特性。活性二氧化硅ODCRs中的₂和Al ₂ O ₃可以与Ca(OH) ₂反应生成一定量的凝胶材料，如钙矾石（AFt）和凝胶水合硅酸钙（C-S-H）。这些凝胶材料可以形成网络结构来包裹重金属和大分子有机物。因此，ODCRs为60%的路基材料浸出液中未检出有机污染物和部分重金属，不会对外界环境产生二次污染。