Publications

Formation consolidation is a form of sand control that had been used extensively in the past until it was replaced by mechanical systems. This changes arose because the level of uncertainty regarding effective chemical placement and reliability. Alternative ways to prevent sand production in effective and efficient ways have been developed to reduce production cost. Resin treatments have been known as one way to stop sand production when the amounts of both resin and catalyst are suitable. Plastic consolidation involves the injection of plastic resins, which are sand grains attractive. The resin hardens and forms a consolidated mass, binding the sand grains together at their contact points. If successful, the increase in formation compressive strength will be sufficient to withstands the drag forces of matrix formation while keeping the production at the desired rates. Three types of resins are commercially available: epoxies, furans (including furan/phenolic blends), and pure phenolic. Resin is in liquid form when injected to the formation and catalyst or curing agent is required to harden it. Some system use “internal catalyst that is mixed into the resin solution at the surface and require time and suitable temperature to harden the resin. Other systems use “external catalyst, injected after the resin is already in the formation. The advantage of internal catalyst is its positive placement because all resin will be in contact with the catalyst required for efficient curing. The disadvantage of using internal catalysts is the possibility of premature hardening in the workstring. Thus, the composition both resin and catalyst must be carefully chosen and controlled for the specific well conditions. This study has used data from “I reservoir. A success method understanding concentration has developed to inject polymer in formation